JP6509620B2 - Bogie frame load loading device for railway vehicles - Google Patents

Description

  In the maintenance of a bogie of a railway vehicle, the present invention removes the bogie frame in a state in which the restoring force of the shaft spring is lost, and disassembles the bogie frame into parts and units, and parts and units in a disassembled state. The present invention relates to a bogie load loading device for a railway vehicle, which is used when assembling a bogie frame supported by a shaft box with a shaft spring.

  Among railway cars, there is a bogie provided with a shaft spring between a bogie frame and an axle box in which a bearing for rotatably supporting an axle is housed, and in such a bogie, the bogie frame is The box is relatively supported by an axial spring. The railway vehicle is subjected to maintenance for the purpose of maintenance and inspection of the bogie when the specified travel distance and inspection time are reached. The axial spring is mounted in a compressed state and is held by bolts so that the spring does not extend any further. In maintenance of the bogie, the bogie frame is removed from the wheel axle and disassembled for each constituting part or unit while losing the restoring force of the axial spring in a compressed state by the bogie frame load loading device or the like. .

  Patent Document 1 is a bogie assembling apparatus that assembles a bogie by accurately positioning a wheelset and a bogie frame on a railway vehicle, and includes bogie frame pressing means for pressing down the bogie frame against the biasing force of a shaft spring. There is. The above-described maintenance work of the truck is performed using a conventional vehicle frame load loading device configured in the same manner as the structure of the truck frame pressing means of Patent Document 1. In maintenance of the carriage by the conventional carriage loading apparatus 102 shown in FIGS. 13 and 14, after one carriage is carried under the upper end 121 of the pillar of the carriage loading 102, the loading unit When a hydraulic cylinder 131 of 130 applies a load to the upper central portion of the bogie frame 75, the four shaft springs 76 located on the front, rear, left and right wheels are further compressed from the spring length originally in the compressed state. As a result, the extension of the shaft spring 76 is restrained by a load (load load) by the hydraulic cylinder 131, and the restraint state of the shaft spring 76 by the bolt is released, so that the bolt can be removed. After that, when the load on the carriage frame 75 is extracted by retracting the rod of the hydraulic cylinder 131, the axial spring 76 becomes a natural length, and the operator can safely remove the axial spring 76 from the carriage frame 75. .

  In the bogie frame load loading device 102, the column 120 is fixed, and the load loading unit 130 at the upper end 121 of the column 120 is located on the bogie frame 75 of the loaded bogie, and the bogie frame load load When the bogie frame 75 is lifted in the device 102, the bogie frame 75 interferes with the load loading unit 130 (the upper end 121 of the column). Therefore, when the worker can not perform various work processes following removal of the bolt in the bogie frame load loading device 102 and a relatively large working space can be secured around the bogie frame loading load device 102, the operator can The truck with the bolt removed is moved away to a position that avoids interference with the upper end 121 of the truck load loading device 102. Then, using the place after the movement as a space for inspection and repair of the bogie, the worker disassembles parts and units, etc. in the bogie frame 75, the wheel shaft 71, etc. We perform multiple types of work such as measurement work. In addition, in the assembly process of parts etc. performed after inspection and repair of the carriage, the order of the disassembly process is reversed, and the work contents of disassembly of parts and assembly of parts are different, and the substantial difference in other work contents substantially There is no.

JP, 2006-116992, A

  However, in the conventional bogie frame load loading device including the technology of Patent Document 1, since the columns are fixed, it is possible to carry out various work steps following loading, under the bogie frame loading device. It was not possible, and the process accompanying the movement of the dolly in which the bolt was removed was additionally added, and the time required for maintenance became long, and the workability of maintenance was also poor. At the same time, there is also the problem that maintenance costs are high. Furthermore, when it is difficult to secure work space by moving a large unit such as a bogie frame or wheelset to the outside of the bogie frame load loading device, as described above, in a factory where maintenance of the bogie is to be performed. There was also.

  The present invention has been made to solve the above-mentioned problems, and among railway cars, the maintenance work of a bogie provided with a shaft spring between a bogie and a bogie frame, disassembling work of the bogie, and assembly thereof It is an object of the present invention to provide a bogie load loading device for a railway vehicle capable of performing attachment and detachment of an axial spring at low cost while improving work efficiency when performing work.

In order to achieve the above object, the bogie load loading device for a railway vehicle according to the present invention has the following configuration.
(1) The on-vehicle mounting unit for mounting the bogie of a railway vehicle provided with an axial spring between the axle box and the bogie frame and the stand on both sides of the on-board mounting unit for the lateral direction along the axle direction of the bogie Each upper end of a pair of support columns is provided with a load loading unit that generates a pressing force, and the load loading unit applies a load to the carriage frame of the carriage placed in the in-vehicle placement unit to load the shaft spring In the bogie frame load loading device for a railway vehicle to be compressed, the load loading unit has a rotation mechanism capable of turning around an axis along the support column.
(2) In the bogie frame load loading device of a railway vehicle according to (1), the pair of columns are erected with a structure that can slide in the left-right direction, and move toward or away from each other. That is.
(3) In the bogie frame load loading device for a railway vehicle according to (1) or (2), the rotation mechanism is provided on the column, and the load loading from the on-vehicle storage unit with respect to the direction of the axis. It arrange | positions near the upper end part side of the said support | pillar near a part, It is characterized by the above-mentioned.
(4) In the bogie frame load loading device for a railway vehicle according to any one of (1) to (3), the pair of columns respectively includes the rotation support portion that holds the load loading portion and the lower portion thereof. And a rotational support portion for supporting the rotational support portion, wherein in the rotational mechanism, the rotational support portion rotates relative to the rotational support portion based on rotational force of an electric motor. It features.

The operation and effects of the bogie load loading device for a railcar of the present invention having the above-described configuration will be described.
(1) The on-vehicle mounting unit for mounting the bogie of a railway vehicle provided with an axial spring between the axle box and the bogie frame and the stand on both sides of the on-board mounting unit for the lateral direction along the axle direction of the bogie Each upper end of a pair of support columns is provided with a load loading unit that generates a pressing force, and the load loading unit applies a load to the carriage frame of the carriage placed in the in-vehicle placement unit to load the shaft spring In a bogie frame load loading device for a railway vehicle to be compressed, the load loading unit is characterized by having a rotation mechanism capable of turning about an axis along the support. Due to this feature, the direction of the load bearing portion can be changed from the operating posture in which a load is applied to the bogie frame by the rotation mechanism, to the retracted posture rotated, for example, at an angle of 90 degrees between the operating posture In the disassembling process of the carriage, when carrying out the work after loading the load, the carriage frame can be lifted by the crane directly above the carriage in-vehicle placement unit from the position of the carriage placed in the carriage in-vehicle placement unit. In addition, the direction of the load bearing portion can be changed from the retracted position to the working position by the rotation mechanism, and in the assembly process of the carriage, the carriage frame is supported by the axle box of the wheel shaft with the shaft spring. Can be suspended using the above-mentioned crane toward the wheel set placed on the in-vehicle mount. Therefore, maintenance work can be performed more efficiently if maintenance of the bogie is performed using the bogie frame load loading device of the present invention than when maintenance of the bogie is performed using the conventional bogie frame load loading device. In addition to shortening the working time, working efficiency is also improved. Therefore, the cost of maintenance can be reduced.

  Therefore, according to the bogie frame load loading device of the railway vehicle of the present invention, the truck disassembling work and its assembly job in maintenance of the bogie provided with the axial spring between the axle box and the bogie frame among the railroad vehicles In addition to improving the working efficiency, the axial spring can be attached and detached at low cost.

(2) The pair of columns are erected in a structure that can slide in the left-right direction, and move in a direction away from each other or in a direction approaching each other. A worker's passage can be secured between the support post and the wheelset (or the carriage) located in the in-vehicle support unit. Therefore, a worker who is engaged in inspection and repair work on a wheelset or the like can smoothly move in this passage without passing around the support column, thereby improving the workability.

(3) The rotation mechanism is provided on the support column and is disposed closer to the upper end of the support column closer to the load load section than the stand in-vehicle storage section with respect to the direction of the axis. Since the weight of the entire pivoting portion including the light weight is reduced, the moment of inertia of the rigid body is reduced, and in the drive source generating the rotational force, the load loading portion can be rotated with a smaller driving force. In addition, in the case of having the slide mechanism capable of sliding the column in the left and right direction, the rotation mechanism can be installed at a distance from the slide mechanism in the column, so that the rotation mechanism and the slide mechanism Evasion is easy, and the structure of both mechanisms can be prevented from being complicated.

(4) Each of the pair of columns is composed of a rotation support portion for holding the load loading portion and a rotation support portion supporting the rotation support portion below the rotation support portion, and in the rotation mechanism, the rotation support portion is the rotation of the electric motor As it is characterized in that it rotates relative to the rotational support based on the force, the piping of the pipe or hose is compared to the case where a hydraulic unit that obtains rotational force with a hydraulic drive source is used as the rotation mechanism. It is possible to miniaturize the bogie load loading device of the railway vehicle according to the present invention without increasing the overall size of the device with a complicated device structure such as, for example. In addition, when a hydraulic unit is used, hydraulic oil may leak to the floor when the hydraulic unit breaks down. However, in the bogie load loading device of the rail car of the present invention, an electric motor is used as the rotation mechanism. Therefore, the floor will not be contaminated with hydraulic oil when the rotating mechanism fails.

(5) The in-vehicle mount unit is characterized by being provided with a positioning mechanism for positioning the mounting position of the wheelset by locking the wheels of the carriage placed in the in-vehicle mount unit. For example, at the time of transport of the carriage by automatic feeding or the like, it is possible to reliably prevent the carriage carried into the in-vehicle placement unit from moving within the in-vehicle placement unit.

It is explanatory drawing which shows the trolley | bogie maintenance apparatus comprised integrally with the trolley | bogie frame load load apparatus of the rail vehicle which concerns on embodiment, etc. integrally, seen from the traveling direction of a trolley | bogie. It is explanatory drawing which shows the trolley | bogie maintenance apparatus shown in FIG. 1 by the side view which looked at it from the axle shaft direction. It is explanatory drawing which shows the trolley | bogie maintenance apparatus shown in FIG. 1 by planar view from upper direction. FIG. 5 is a front view showing a bogie frame load loading device of the bogie maintenance device shown in FIG. 1. It is explanatory drawing which shows the load loading part of a support | pillar upper-end part among the bogie frame load loading apparatuses shown in FIG. It is explanatory drawing which showed the rotation mechanism of the trolley | bob frame load load apparatus shown in FIG. 4 using the partial cross section figure. It is explanatory drawing of the slide mechanism which expands and shows the A section in FIG. It is a side view of the bogie frame load load apparatus shown in FIG. 4, and is explanatory drawing which shows a mode that the bogie frame is pressed by the load loading part. It is an enlarged view of the B section in FIG. It is explanatory drawing shown about the operation | movement of the bogie frame load load apparatus shown in FIG. 4 by the planar view from upper direction. It is a flowchart figure explaining the whole flow in the disassembly process of a trolley | bogie. It is a flowchart figure explaining the whole flow in the assembly process of a trolley | bogie. It is explanatory drawing which shows the conventional bogie frame load load apparatus by the plain view which looked at the traveling direction of the trolley | bogie. It is an explanatory view showing the conventional truck load loading device by the side view from the direction of an axle.

(Embodiment)
Hereinafter, an embodiment of a bogie load loading device for a railcar according to the present invention will be described in detail based on the drawings. FIG. 1 is an explanatory view showing, in a front view as viewed from the traveling direction of a bogie, a bogie maintenance device configured by integrating a bogie lifting device and the like in addition to the bogie frame load loading device of the railway vehicle according to the embodiment. . About the truck maintenance device shown in FIG. 1, an explanatory view of a side view seen from the axle direction is shown in FIG. 2, and an explanatory view of a plan view from above is shown in FIG.

  In the present embodiment, the bogie frame load loading device 2 of the rail vehicle is used for removing the bolt 77 before removing the bogie frame 75 from the wheel shaft 71 in the disassembling process of the bogie 70 in maintenance of the bogie 70 of the rail vehicle. It is used to limit the restoring force to restrain the axial spring 76. Further, the bogie frame load loading device 2 is limited to the restoring force in supporting the bogie frame 75 on the axle box 73 with the shaft spring 76 in the assembly process of the bogie 70 performed after inspection and repair of parts and units not shown. And the shaft spring 76 is restrained, and is also used when the bolt 77 is attached.

  As shown in FIGS. 1 to 3, the bogie frame load loading device 2 is incorporated in the carriage maintenance device 1 configured integrally with the carriage lifting device 3, the gear box supporting device 4, and the carriage automatic conveyance device. ing. The carriage automatic conveyance device automatically feeds one carriage 70 which performs maintenance with respect to the left direction in the traveling direction FR in FIG. 3 to the carriage loading unit 10 of the carriage load loading device 2 described in detail later. It is a device equipped with a function to carry in.

  The dolly lifting device 3 is used in the disassembly process after removing the bolt 77, and supports the dolly 70 by supporting the four axle box bottoms 74 in the tick box 73 of the dolly 70 with the four jacks 3a. It is a lifting device. The worker performs operations such as checking and maintenance of the wheel shaft 71 of the truck 70 jacked up by the truck elevator 3 and a gear box. The gear box supporting device 4 is a device for supporting the case of the gear box with two jacks 4 a in checking the gears of the gear train housed in the gear box. The carriage lifting device 3 and the gear box supporting device 4 are installed in the underground pit UP, and both the jack 3a and the jack 4a are lifted and lowered with a predetermined stroke between the inside of the underground pit UP and the upper position of the floor surface FL. Do.

  The carriage load loading device 2 will be described. FIG. 4 is a front view showing a bogie frame loading apparatus, and its side view is shown in FIG. The bogie frame load loading device 2 has a base mounted portion 10 for placing the bogie 70 of a railway vehicle provided with an axial spring 76 between the axle box 73 and the bogie frame 75, and a left-right direction along the axle direction of the bogie 70 A load applying unit 30 for generating a pressing force F is provided at each upper end portion 21 of a pair of support columns 20, 20 erected on both sides of the in-vehicle mount unit 10 with respect to the RL.

  A track 11 for rolling the wheels 72 to move the carriage 70 is installed in the on-vehicle storage unit 10 according to the height of the floor surface FL, and the carriage 70 on the track 11 is an automatic carriage conveying device The inside of the in-vehicle mount unit 10 is moved by an external force applied from the above. Further, a carriage stopper 12 (positioning mechanism) is provided in a part of the inside of the track 11. The bogie stopper 12 has a mechanism for preventing rolling on the track 11 with respect to the wheel 72 of the bogie 70 placed in the on-vehicle stand 10 and the wheel 72 in a state of only the wheel shaft 71. Positioning positions of the wheel 70 and the wheel shaft 71 are determined.

  The post 20 will be described. FIG. 5 is an explanatory view showing a load loading portion of a pillar upper end portion of the bogie frame load loading device shown in FIG. 4 and an explanatory view showing the rotation mechanism of this bogie frame load loading device in a partial sectional view; It is shown in FIG. Each of the two columns 20 includes a rotational support 20A and a rotational support 20B. As shown in FIG. 4, the rotation support portion 20A is formed in a substantially reverse L-shape which is bent 90 degrees in the horizontal direction RL which is the horizontal direction from the upward direction of the vertical direction VT on the rotation support portion 20B. . The rotation support portion 20A has an upper end portion 21 which is a portion in the horizontal direction of the substantially inverted L shape. A load bearing portion 30 is attached to the upper end portion 21. The rotational support portion 20B supports the rotational support portion 20A below the rotational support portion 20A, and the rotational support portion 20A and the rotational support portion 20B are connected via the rotational mechanism 40.

  As shown in FIGS. 4 and 6, the rotation mechanism 40 is disposed closer to the upper end 21 closer to the load loading unit 30 than the on-vehicle mount unit 10 with respect to the axis M along the vertical direction VT of the support 20. In the present embodiment, the load loading unit 30 can be turned by 90 degrees about the axis M. In the rotation mechanism 40, between the rotation side connection plate 41 in which the bearing 43 and the ring gear 44 are attached to the lower end of the rotation support portion 20A and the rotation side connection plate 42 attached to the upper end of the rotation support portion 20B. Are disposed.

  The inner ring of the bearing 43 is fixed to the rotation side connection plate 41, and the outer ring is fixed to the ring gear 44. The ring gear 44 is an annular external gear, and is attached to the bearing 43 in a state in which the inner peripheral surface thereof and the outer peripheral surface of the outer ring of the bearing 43 are in close contact and fixed. An electric motor 46 is disposed on the rotation side connection plate 41, and a pinion gear 45 is attached to the rotation shaft of the electric motor 46 which is inserted through the through hole of the rotation side connection plate 41. The pinion gear 45 is formed of gear elements capable of meshing with the ring gear 44.

  In the rotation mechanism 40, when the rotational force of the electric motor 46 meshes with the pinion gear 45 and is transmitted to the ring gear 44, the outer ring of the bearing 43 rotates relative to the inner ring, whereby the rotation side connection plate 41 , Around the axis M. Thereby, the rotation support portion 20A of the support column 20 also rotates around the axis M, and as shown in FIG. 10, the upper end portion 21 pivots in the normal direction or reverse direction within the rotation range of 90 degrees. . Thus, the rotation support portion 20A rotates relative to the rotation supported portion 20B based on the rotational force of the electric motor 46.

  The load loading unit 30 includes a hydraulic cylinder 31, a load cell 33, and an auto switch (not shown). The load loading unit 30 applies a load to the carriage frame 75 of the carriage 70 placed in the on-vehicle stand unit 10 to compress the axial spring 76. The hydraulic cylinder 31 is installed at the upper end portion 21 of the rotation support portion 20A in a posture in which the rod 32 is disposed downward. The hydraulic cylinder 31 controls the hydraulic oil supply path with the hydraulic drive source 39 with an electromagnetic valve to raise and lower the rod 32. In the present embodiment, the lifting stroke 500 mm of the rod 32, the pressure force of the rod 32 ( The pressing force F) is a specification such as several tens kN. A load cell 33 is attached to the rod 32 via an attachment member 34. The load cell 33 converts the load applied from the rod 32 of the hydraulic cylinder 31 into an electrical output signal by means of a strain gauge type converter, and detects the magnitude of the load (pressing force F).

  The auto switch is provided at the upper end portion 21 as a switch for detecting the rising end position of the rod 32. When the auto switch detects the rising end of the rod 32, the rising rod 32 stops. Note that various devices such as the solenoid valve, the load cell 33, and the auto switch are electrically connected to an electric control panel (not shown) and controlled automatically.

  Next, the slide mechanism 50 will be described. FIG. 7 is an explanatory view of a slide mechanism shown by enlarging a portion A in FIG. FIG. 8 is an explanatory view showing a state where the carriage frame is pressed by the load loading unit, and FIG. 9 shows an enlarged view of a portion B in FIG. The slide mechanism 50 is a mechanism for erecting the pair of columns 20 with a structure movable in the slide SL direction along the left-right direction RL, and operating the pair of columns 20 in a direction away from each other or in a direction away from each other. The slide mechanism 50 is accommodated on a low floor surface UF lower than the floor surface FL and mounted on a rack.

  The slide mechanism 50 is provided with one air cylinder 52 and two linear guides 51. The air cylinder 52 is a rodless cylinder that moves the block-like slide table 52B relative to the upper side of the elongated cylinder tube 52A within its longitudinal stroke range, and is a cylinder having the bracket 53 attached to the slide table 52B. is there. The operation of the slide table 52B is controlled by automatically controlling a pneumatic device (not shown) by an electric control panel (not shown) and controlling the air feeding path. The two linear guides 51 are juxtaposed with the air cylinder 52 on both sides sandwiching the air cylinder 52, and the linear guide 51 and the air cylinder 52 are mutually arranged in parallel along the left-right direction RL.

  The lower end of the rotated support portion 20B of the support 20 is fixed by a support base portion 56, and the support base portion 56 is connected to the bracket 53 via the first support member 54. Further, both sides of the linear guide 51 are connected to the second support member 55 fixed to the support base portion 56. The support base portion 56 supporting the rotated support portion 20B is also supported by the slide table 52B through the first support member 54 and the bracket 53 while being supported by the two linear guides 51 through the respective second support members 55. ing. Thus, when the slide table 52B moves relative to the cylinder tube 52A, in the embodiment, the support 20 linearly moves in the slide SL direction within a stroke of 850 mm while being guided by the linear guide 51. .

  In the slide mechanism 50, the slide cover 58 covers the periphery of the linear guide 51 and the air cylinder 52 over the movable range of the front and back of the support column 20, and such precision sliding unit is externally Etc. to protect from foreign substances such as Since the slide mechanism 50 is accommodated on the low floor surface UF as shown in FIG. 1, the cover is also provided on the slide mechanism 50 at a height at which the level difference with the floor surface FL is eliminated. .

  Next, the disassembling process and the assembling process of the carriage 70 will be briefly described. FIG. 11 is a flow chart for explaining the overall flow in the disassembling process of the carriage, and FIG. 12 is a flow chart for explaining the overall flow in the assembly process of the carriage.

  First, as shown in FIGS. 1 and 10, each support column 20 retracts at the retracted end position Q, and the orientation of the upper end 21 is in the retraction posture S directed in the traveling direction FR. In the carriage 70, the axial spring 76 is restrained by the bolt 77 and is in a compressed state. In the disassembling process, the carriage 70 is carried into the on-vehicle storage unit 10 by the carriage automatic conveyance device, and the wheels 72 are wheeled by the carriage stopper 12 (S1). Next, the slide mechanism 50 advances each support column 20 to the forward end position P where the load loading unit 30 can press the carriage frame 75 of the carriage 70 (S2). Next, the direction of the upper end portion 21 is turned to the operation posture R directed to the axle direction (left and right direction RL) (S3).

  Next, the rod 32 of the hydraulic cylinder 31 is lowered to apply a pressing force F to the carriage frame 75, thereby applying a restriction to the restoring force of the axial spring 76 in a compressed state (S4). The bolt 77 is removed in this pressed state (S4). Thereafter, by raising the rod 32 of the hydraulic cylinder 31, the pressing force F applied to the carriage frame 75 is released (S6). As a result, the load caused by the weight of the carriage frame 75 acts only on the shaft spring 76, and the restoring force of the shaft spring 76 due to the restraint of the bolt 77 is lost. The frame 75 can be removed.

  Next, the rotation support portion 20A is rotated to set the direction of the upper end portion 21 to the retracted posture S (S7). Next, the slide mechanism 50 retracts the support 20 to the retracted end position Q (S8). Next, while supporting the case of the gear box with the jack 4a of the gear box supporting device 4, disassembly, inspection, repair, etc. of the wheel shaft 71, the carriage frame 75, etc. are performed (S9). Next, at (S10), the bogie frame 75 is lifted by a crane, and then the axial spring 76 is taken out (S11).

  The assembly process will be described. When the inspection and repair of the wheel shaft 71 and the carriage frame 75 are finished, various parts are assembled with the wheel shaft 71 and the carriage frame 75 (S21). Next, the shaft spring 76 is mounted on the axle box 73 of the wheel shaft 71 placed on the in-vehicle mount unit 10 (S22). Next, at (S23), the bogie frame 75 is lifted by a crane, and a jig (not shown) for aligning the bogie frame 75 and the wheel shaft 71 is attached to the bogie frame 75. Next, after removing the jig immediately before assembling the carriage frame 75 and the wheel shaft 71 while suspending the carriage frame 75 gradually, the wheel shaft 71 with the carriage frame 75 placed on the shaft spring 76. (S24).

  Next, the slide mechanism 50 advances each support 20 to the advancing end position P (S25). Next, the orientation of the upper end 21 is changed to the operating posture R (S26). Next, the rod 32 of the hydraulic cylinder 31 is lowered to apply a pressing force F to the carriage frame 75 (S27). The pressing force F at this time is larger than the sharing load acting on one shaft spring 76 among the loads of the vehicle body actually applied on the carriage 70, and the spring length of the shaft spring 76 compressed by the suppression by the bolt 77 It is a size of the load which can compress axial spring 76 so that it may become shorter. Next, the pressing force F is applied to the carriage frame 75 by the hydraulic cylinder 31, and the bolt 77 is attached while the shaft spring 76 is in the pressed state (S28). Thereafter, the rod 32 of the hydraulic cylinder 31 is raised to release the pressing force F applied to the carriage frame 75 (S29). As a result, the shaft spring 76 is in a state of being restrained by the bolt 77.

  Next, the rotation support portion 20A is rotated to set the upper end portion 21 to the retracted position S (S30). Next, the slide mechanism 50 retracts the support 20 to the retracted end position Q (S31). Next, after the wheel detent of the wheel 72 by the carriage stopper 12 is released, the carriage 70 is carried out by the worker from the on-vehicle stand 10 to the next process (S32). Thus, the maintenance of the truck 70 by the truck maintenance device 1 is completed.

  As described above, according to the bogie frame load loading device 2 of the railway vehicle according to the present embodiment, the on-vehicle placement for placing the bogie 70 of the railway vehicle provided with the shaft spring 76 between the axle box 73 and the bogie frame 75 A load loading unit that generates a pressing force F on each upper end 21 of a pair of columns 20 and 20 erected on both sides of the in-vehicle mount 10 with respect to the left and right direction RL along the axle direction of the carriage 10 30. In the bogie frame load loading device 2 of a railway vehicle, a load is applied to the bogie frame 75 of the bogie 70 placed in the on-vehicle placing part 10 by the load loading unit 30 to compress the shaft spring 76. The load loading unit 30 is characterized by having a rotation mechanism 40 pivotable about an axis M along the support column 20.

  Due to this feature, the direction of the load loading unit 30 can be changed from the operating posture R to the retracted posture S by the rotation mechanism 40, and in the disassembling process of the carriage 70, the work after loading is performed. From the position of the carriage 70 placed on the unit 10, the carriage frame 75 can be lifted by a crane located directly above the on-vehicle stand unit 10. In addition, the direction of the load loading unit 30 can be changed from the retracted position S to the operating position R by the rotation mechanism 40, and in the assembly process of the carriage 70, the task of supporting the carriage frame 75 on the axle box 73 by the shaft spring 76 is performed. In carrying out, the bogie frame 75 can be suspended toward the wheel shaft 71 placed on the in-vehicle mount unit 10 using the crane. Therefore, maintenance work can be performed if maintenance of the carriage 70 is performed using the carriage frame load loading device 2 of the present embodiment compared to the case where maintenance of the carriage is performed using the conventional carriage frame load loading device 102. In addition to being able to achieve efficiency, shortening of working time can be achieved, working efficiency is also improved. Therefore, the cost of maintenance can be reduced.

  In particular, in the case of railway vehicles, in the case of Shinkansen vehicles, the traveling speed is also high at a place where the number of vehicles in one formation is large compared to the conventional line, and the distance traveled in one operation is long For safety reasons, therefore, maintenance of the carriage 70 is frequently performed, and efficient and low cost maintenance of the carriage 70 is an essential requirement. In the bogie frame load load device 2 of the present embodiment, maintenance work of the bogie 70 satisfying such essential requirements can be realized.

  Further, in the conventional bogie frame load loading device 102, since the pillar 120 is fixed, the work of temporarily moving the bogie frame 75 to a location away from the pillar 120 and inspecting and repairing the bogie frame 75 Although space was required on the outside of the bogie frame load loading device 102, such a working space is unnecessary in the bogie frame loading load device 2 of the present embodiment. Therefore, the entire inspection and repair space of the carriage 70 can be saved.

  Therefore, according to the bogie frame load loading device 2 of the railcar according to the present embodiment, the bogie 70 is provided by maintenance of the bogie 70 provided with the shaft spring 76 between the axle box 73 and the bogie frame 75 among the railcars. In performing the disassembling work and the assembling work thereof, the working efficiency is improved, and the axial spring 76 can be attached and detached at low cost.

  Further, in the bogie frame load loading device 2 of the railcar according to the present embodiment, the pair of columns 20, 20 is erected in a structure that can slide in the left-right direction RL (sliding direction SL) Since it is characterized in that it moves in a direction in which it approaches, between the support 20 and the wheel shaft 71 (or the carriage 70) located in the in-vehicle storage unit 10 on both sides in the left-right direction RL of the in-vehicle storage unit 10, Worker's passage can be secured. Therefore, a worker who is engaged in inspection and repair work on the wheel shaft 71 or the like can smoothly move in this passage without passing around the support column 20, which improves the workability.

  Further, in the bogie frame load loading device 2 of the railcar according to the present embodiment, the rotation mechanism 40 is provided on the support column 20, and the support pole 20 closer to the load loading unit 30 than the on-vehicle mount 10 in the direction of the axis M. Because the weight of the entire rotation support unit 20A including the load loading unit 30 becomes lighter, the moment of inertia of the rigid body becomes smaller, and the electric motor At 46, the load bearing portion 30 can be rotated with a smaller driving force. Further, in the support column 20, since the rotation mechanism 40 can be installed at a distance from the slide mechanism 50, the interference between both the rotation mechanism 40 and the slide mechanism 50 can be easily avoided, and the structure of both mechanisms is It can be prevented from becoming complicated. In addition, the position of the rotation mechanism 40 can be a position that does not get in the way of the worker without the foot of the worker while walking being caught.

  Further, in the bogie frame load loading device 2 of the railcar according to the present embodiment, the pair of columns 20 and 20 respectively support the rotation supporting portion 20A for holding the load loading portion 30 and the support for supporting the rotation support portion 20A below it. Since the rotation support unit 20A is composed of the rotation support unit 20B, and the rotation support unit 20A rotates relative to the rotation support unit 20B based on the rotation force of the electric motor 46 in the rotation mechanism 40, When a hydraulic unit that obtains rotational force with a hydraulic drive source is used as the rotation mechanism, the entire device may be enlarged due to a complex device structure such as piping of pipes and hoses, but with the bogie frame load load device 2 Since the rotational force of the rotation support portion 20A is the electric motor 46, the bogie frame load loading device 2 can be made compact. When a hydraulic unit is used, hydraulic oil may leak to the floor when the hydraulic unit breaks down, but in the bogie frame load loading device 2, since the electric motor 46 is used for the rotation mechanism 40, At the time of failure of the rotation mechanism 40, the floor is not contaminated with hydraulic oil, and maintainability is also good.

  Further, even if the pair of columns 20 and 20 are manufactured to the same specifications, the rotation direction of the electric motor 46 of one rotation support portion 20A and the rotation direction of the electric motor 46 of the other rotation support portion 20A are reversed. The two rotary support portions 20A can be rotated in the same direction as viewed from the traveling direction FR only by wiring with the above wiring, and it is not necessary to separately manufacture the columns 20 separately, which is inexpensive.

  Further, in the bogie frame load load device 2 of the railcar according to the present embodiment, the wheel on the carriage 70 placed on the table on-vehicle placement unit 10 is ring-c Since the carriage stopper 12 for positioning the placement position is provided, when the carriage 70 is transported, the carriage 70 carried into the on-vehicle storage unit 10 by automatic feeding by the carriage automatic conveyance device is It is possible to reliably prevent movement within the on-vehicle storage unit 10.

Although the present invention has been described based on the embodiments, the present invention is not limited to the above embodiments, and can be appropriately modified and applied without departing from the scope of the present invention.
(1) For example, in the embodiment, the bogie frame load loading device 2 is used for the bogie 70 moving on the track 11 having a predetermined track width, but the invention relates to a plurality of types of bogies having different track widths. A bogie frame load loading device of a railway vehicle may be used in a versatile manner, and in this case, the pressing position on the bogie frame may be changed by adjusting the distance between the columns for each bogie.
(2) Also, in the embodiment, the overall flow of the disassembling process of the carriage is illustrated in the flow chart of FIG. 11, and the entire flow of the assembly process of the carriage is illustrated in the flow chart of FIG. The disassembling process of the carriage and the assembling process thereof are not limited to the present embodiment, and the order and contents of the working process can be appropriately changed.

(3) Moreover, although the case where the decomposition | disassembly process of the trolley | bogie 70 and its assembly process were performed using the bogie frame load loading apparatus 2 was illustrated in embodiment, the bogie frame load loading apparatus of the rail vehicle concerning this invention, It is used only for the disassembly process of a trolley | bogie and may not be used for the assembly process of a trolley | bogie. Therefore, in this case, each operation of the assembly process of the carriage as shown in the flow chart of FIG. 12 is not performed.

2 bogie frame load loading device 10 cars in-vehicle stand 12 bogie stopper (positioning mechanism)
Reference Signs List 20 post 20A rotational support portion 20B rotational support portion 21 upper end 30 load loading portion 40 rotational mechanism 46 electric motor 70 carriage 73 axle box 75 carriage frame 76 axial spring RL horizontal direction F pressing force M axis line

Claims (4)

A stand mounted portion for mounting a bogie of a railway vehicle provided with an axis spring between an axle box and a bogie frame, and a pair erected on both sides of the stand mounted portion for the left and right direction along the axle direction of the bogie A load loading unit that generates a pressing force at each upper end of the support column, and a load loading unit that applies a load to a carriage frame of a carriage placed in the on-vehicle placement unit to compress an axial spring In the vehicle frame loading device of the vehicle,
The load bearing portion has a rotation mechanism capable of pivoting about an axis along the support;
A bogie load loading device for a railway vehicle characterized by In the bogie load loading device for a railway vehicle according to claim 1,
The pair of support columns are erected in the laterally slidable structure, and move in a direction away from each other or in a direction closer to each other.
A bogie load loading device for a railway vehicle characterized by In the bogie load loading device for a railway vehicle according to claim 1 or 2,
The rotation mechanism is provided on the support column, and is disposed closer to the upper end side of the support column closer to the load loading unit than the in-vehicle mount unit with respect to the direction of the axis.
A bogie load loading device for a railway vehicle characterized by In a bogie load loading device of a railway vehicle according to any one of claims 1 to 3,
Each of the pair of columns is composed of a rotational support portion for holding the load bearing portion, and a rotational support portion supporting the rotational support portion below the rotational support portion;
In the rotation mechanism, the rotation support portion may rotate relative to the rotation support portion based on rotational force of an electric motor.
A bogie load loading device for a railway vehicle characterized by

Images