CN112781898B - Test bed for railway wagon parking brake cylinder and test method thereof - Google Patents
Test bed for railway wagon parking brake cylinder and test method thereof Download PDFInfo
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- CN112781898B CN112781898B CN202011599687.7A CN202011599687A CN112781898B CN 112781898 B CN112781898 B CN 112781898B CN 202011599687 A CN202011599687 A CN 202011599687A CN 112781898 B CN112781898 B CN 112781898B
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- G—PHYSICS
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
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Abstract
The invention relates to the technical field of mechanical detection, and aims to solve the problems that the requirements of parking brake tests, parking brake force detection and manual relief tests cannot be met, the operation is unsmooth, clamping stagnation is easy to occur and the detection is inaccurate in the prior art, and provides a test bed for a railway wagon parking brake cylinder, which comprises a bench; the rack is provided with a first vertical plate, a second vertical plate, a sliding column, an elastic piece and a sleeve; the sliding columns are provided with a movable mechanism, and the movable mechanism is provided with a movable plate, a first through hole, a second through hole, a push rod, a sensor connecting rod and a knuckle bearing; the other end of the push rod is provided with a holding plate, a brake cylinder, a piston rod (not shown in the figure) and a piston; the outer side surface of the brake cylinder is provided with a manual release mechanism and a pull ring, and the outer side of the manual release mechanism is provided with a manual release test mechanism. The invention has the advantages of meeting the requirements of parking brake test, parking brake force detection and manual release test, ensuring smooth movement of the test bed, having no clamping stagnation and being more accurate in detection.
Description
Technical Field
The invention relates to the technical field of mechanical detection, in particular to a test bed for a railway wagon parking brake cylinder and a test method thereof.
Background
The conventional railway freight car vehicle braking system is provided with a set of brake cylinders and a set of hand brakes, wherein the brake cylinders complete service braking or automatic braking, and the hand brakes complete parking braking or manual braking. In order to realize automation of parking braking, a railway freight car braking parking cylinder is different from the original braking cylinder in test requirements, and besides the performance test of the original braking cylinder, a parking braking test, a parking braking force detection and a manual release test are required, while a test bed in the prior art cannot meet the requirements of the parking braking test, the parking braking force detection and the manual release test, and the conventional test bed is unsmooth in running, easy to be jammed and low in detection precision.
Disclosure of Invention
The invention aims to provide a test bed for a railway wagon parking brake cylinder and a test method thereof, which are used for solving the problems that the requirements of a parking brake test, parking brake force detection and manual release test cannot be met, the operation is unsmooth, clamping stagnation is easy to occur and the detection is inaccurate in the prior art.
Embodiments of the present invention are implemented as follows:
the embodiment of the invention provides a test bed for a railway wagon parking brake cylinder, which comprises a rack; a first vertical plate and a second vertical plate are arranged on the rack, a plurality of sliding columns are arranged between the first vertical plate and the second vertical plate, one ends of the sliding columns are fixedly connected to the first vertical plate, and the other ends of the sliding columns are detachably connected to the second vertical plate;
one end of each sliding column is provided with a plurality of elastic pieces and a plurality of sleeves, the elastic pieces are sleeved on one end of each sliding column, the sleeves are fixedly connected to one side of the first vertical plate, and the elastic pieces are respectively positioned in the sleeves;
the sliding columns are provided with a movable mechanism, the movable mechanism is provided with a movable plate, the movable plate is slidably connected to the sliding columns, a first through hole is formed in the movable plate, a second through hole is formed in the second vertical plate, the first through hole and the second through hole are all located on the same axis, a push rod is arranged in the second through hole, one end of the push rod is provided with a sensor, one end of the push rod is connected with one end of the sensor, the other end of the sensor is connected with a sensor connecting rod, a joint bearing is arranged on the outer peripheral surface of the sensor connecting rod, the sensor connecting rod is arranged in the joint bearing through interference fit, and the joint bearing is arranged in the first through hole through interference fit;
the other end of the push rod is provided with a containing plate which is detachably connected to the rack, a brake cylinder is arranged on the containing plate, a piston rod (not shown in the figure) is arranged in the brake cylinder, one end of the piston rod is provided with a piston, and the piston is connected to the other end of the push rod;
the outer side surface of the brake cylinder is provided with a manual release mechanism, the manual release mechanism is provided with a pull ring, the outer side of the manual release mechanism is provided with a manual release test mechanism, the manual release test mechanism is provided with a cylinder, one end of the cylinder is provided with a telescopic rod, and the outer end of the telescopic rod is detachably connected with the pull ring.
The device can meet the requirements of parking brake tests, parking brake force detection and manual release tests, and the test bed moves smoothly, has no clamping stagnation and is more accurate in detection.
Optionally: the movable plate is provided with a plurality of holes which are adapted to a plurality of sliding columns, and the other ends of the sliding columns penetrate through the holes and are detachably connected to the plate surface of the second vertical plate; and the self-lubricating bearings are arranged in the holes, the slidable rings of the self-lubricating bearings are sleeved on the sliding columns, and the outer peripheral surfaces of the self-lubricating bearings are attached to the walls of the holes through interference fit.
So set up, the setting of above-mentioned self-lubricating bearing, the wearing and tearing of effectual reduction above-mentioned slip post and fly leaf, make the motion smooth and easy, no clamping stagnation, so, the detection of parking brake force can be more accurate.
Optionally: the rack is provided with a rack frame, one side of the rack frame is provided with a plurality of supporting legs, the supporting legs are fixedly connected to one side of the rack frame, the first vertical plate and the second vertical plate are vertically connected to the other side of the rack frame, and the arrangement mode is convenient for saving cost.
Optionally: the outer side of the first vertical plate is provided with a base plate, the base plate is fixedly connected to the table frame, the base plate is provided with a plurality of supporting pieces, one horizontal end of each supporting piece is fixedly connected to the base plate, and one vertical end of each supporting piece is fixedly connected to the outer side of the first vertical plate.
So set up, above-mentioned support piece is effectual plays the effect of support to first riser for first riser is more firm.
Optionally: the other ends of the sliding columns are positioned at the outer sides of the second vertical plates, nuts are arranged at the other ends of the sliding columns, the nuts are rotatably connected to the other ends of the sliding columns, and gaskets are arranged between the nuts and the second vertical plates.
The movable mechanism and the sliding column are convenient to detach or replace, and the movable mechanism and the sliding column are beneficial to later maintenance and repair.
Optionally: the first through hole is positioned at the center of the movable plate, the outer peripheral surface of the joint bearing is attached to the hole wall of the first through hole, and the outer peripheral surface of the sensor connecting rod is attached to the inner peripheral surface of the joint bearing.
The joint bearing is additionally arranged at the center of the movable plate, so that the influence of high center error on the movement of the movable plate is reduced.
Optionally: one end of the sensor is detachably connected to one end of the push rod, and the other end of the sensor is detachably connected to one end of the sensor connecting rod.
So set up, be convenient for change sensor and push rod to be applicable to the test of various model brake cylinders.
Optionally: the hand buffering test mechanism is provided with a reinforcing plate, the vertical edge of the reinforcing plate is fixedly connected with the outer side face of the table frame, the horizontal edge of the reinforcing plate is connected with a mounting plate, the mounting plate is parallel to the top face of the table frame, a plurality of mounting columns are arranged on the mounting plate and are parallel to each other, one ends of the mounting columns are fixedly connected with the mounting plate, the other ends of the mounting columns are provided with clamping pieces which are matched with the air cylinders, one edge of each clamping piece is connected with the air cylinders, and the other edge of each clamping piece is connected with the other ends of the mounting columns.
Optionally: the outer end of the telescopic rod is provided with a connecting hole, and the pull ring is detachably connected in the connecting hole.
In one implementation of the present embodiment: the test method of the test bed for the railway wagon parking brake cylinder is also provided, and the performance test of the conventional brake cylinder is as follows: the brake cylinder is inflated first, the piston of the brake cylinder extends out to push the push rod to move forwards, the push rod pushes the movable plate to move forwards, when the movable plate abuts against the elastic piece, the elastic piece starts to be compressed, when the brake cylinder is exhausted, the piston retreats, and the elastic piece pushes the movable mechanism back.
Parking brake test and detection of parking brake force: when parking braking is implemented, the braking cylinder is exhausted, but a piston rod in the braking cylinder is locked, the piston cannot retract, at the moment, the movable mechanism stops moving, a sensor displays a parking braking force value, and when the parking braking is released, the elastic piece pushes the movable mechanism back.
Manual relief test: when the manual release function is not needed, the telescopic rod of the air cylinder is kept in an extending state, and when the manual release is needed, the air cylinder is inflated, so that the telescopic rod of the air cylinder is retracted, and the telescopic rod pulls the pull ring, so that the manual release of the brake cylinder is realized.
By combining the description, the test bed for the railway wagon parking brake cylinder and the test method thereof disclosed by the invention have the beneficial effects of meeting the requirements of parking brake tests, parking brake force detection and manual release tests, having smooth movement, having no clamping stagnation and being more accurate in detection.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a test stand for a railway freight car parking brake cylinder in an embodiment of the present invention;
fig. 2 is a side view of a railway freight car parking brake cylinder test stand in accordance with an embodiment of the present invention.
Icon: 1-a rack; 2-a first riser; 3-a second riser; 4-sliding columns; 5-an elastic member; 6-sleeve; 7-a movable mechanism; 8-a movable plate; 9-a first through hole; 10-a second through hole; 11-push rod; 12-a sensor; 13-sensor connection rod; 14-knuckle bearing; 15-placing the plate; 16-a brake cylinder; 17-a piston; 18-a manual mitigation mechanism; 19-pull ring; 20-hand buffer test mechanism; 21-cylinder; 22-telescopic rod; 23-holes; 24-self-lubricating bearings; 25-a table frame; 26-supporting legs; 27-backing plate; 28-a support; 29-a nut; 30-a gasket; 31-reinforcing plates; 32-mounting plates; 33-mounting posts; 34-a clamping member; 35-connecting holes.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an azimuth or a positional relationship based on that shown in the drawings, or an azimuth or a positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present invention and simplifying the description, and it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like in the description of the present invention, if any, are used for distinguishing between the descriptions and not necessarily for indicating or implying a relative importance.
Furthermore, the terms "horizontal," "vertical," and the like in the description of the present invention, if any, do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Examples
Referring to fig. 1 and 2, the present embodiment proposes a test stand for a railway wagon parking brake cylinder, comprising a stand 1; a first vertical plate 2 and a second vertical plate 3 are arranged on the rack 1, a plurality of sliding columns 4 are arranged between the first vertical plate 2 and the second vertical plate 3, one ends of the sliding columns 4 are fixedly connected to the first vertical plate 2, and the other ends of the sliding columns 4 are detachably connected to the second vertical plate 3;
a plurality of elastic pieces 5 and a plurality of sleeves 6 are respectively arranged at one ends of the sliding columns 4, the elastic pieces 5 are sleeved on one ends of the sliding columns 4 in a ring mode, the sleeves 6 are fixedly connected to one side of the first vertical plate 2, and the elastic pieces 5 are respectively positioned in the sleeves 6;
a plurality of sliding columns 4 are provided with a movable mechanism 7, the movable mechanism 7 is provided with a movable plate 8, the movable plate 8 is slidably connected to the plurality of sliding columns 4, a first through hole 9 is arranged on the movable plate 8, a second through hole 10 is arranged on the second vertical plate 3, the first through hole 9 and the second through hole 10 are all positioned on the same axis, a push rod 11 is arranged in the second through hole 10, one end of the push rod 11 is provided with a sensor 12, one end of the push rod 11 is connected with one end of the sensor 12, the other end of the sensor 12 is connected with a sensor connecting rod 13, a joint bearing 14 is arranged on the outer circumferential surface of the sensor connecting rod 13, the sensor connecting rod 13 is arranged in the joint bearing 14 through interference fit, and the joint bearing 14 is arranged in the first through hole 9 through interference fit;
the other end of the push rod 11 is provided with a containing plate 15, the containing plate 15 is detachably connected to the rack 1, the containing plate 15 is provided with a brake cylinder 16, a piston rod (not shown in the figure) is arranged in the brake cylinder 16, one end of the piston rod is provided with a piston 17, and the piston 17 is connected to the other end of the push rod 11;
the outer side surface of the brake cylinder 16 is provided with a manual release mechanism 18, the manual release mechanism 18 is provided with a pull ring 19, the outer side of the manual release mechanism 18 is provided with a manual release test mechanism 20, the manual release test mechanism 20 is provided with a cylinder 21, one end of the cylinder 21 is provided with a telescopic rod 22, and the outer end of the telescopic rod 22 is detachably connected with the pull ring 19.
In use, the brake cylinder 16 is mounted on the holding plate 15 on the rack 1, the brake cylinder 16 is inflated to extend the piston rod in the brake cylinder 16, at this time, the piston 17 on one end of the piston rod pushes the push rod 11 of the movable mechanism 7, the movable plate 8 is pushed to slide forward on the sliding column 4 between the first vertical plate 2 and the second vertical plate 3 by the push rod 11, when the movable plate 8 abuts against the elastic member 5, the movable plate 8 compresses the elastic member 5, the movable mechanism 7 stops moving until the sensor 12 displays the parking brake force value, and when the parking brake is released, the elastic member 5 pushes the movable mechanism 7 back.
The test bed for the railway wagon parking brake cylinder has the advantages of meeting the requirements of parking brake tests, parking brake force detection and manual release tests, enabling the test bed to move smoothly, being free of clamping stagnation and being more accurate in detection.
Referring to fig. 1 and 2, the movable plate 8 has a plurality of holes 23 adapted to the plurality of sliding columns 4, and the other ends of the plurality of sliding columns 4 pass through the holes 23 and are detachably connected to the plate surface of the second vertical plate 3; the self-lubricating bearings 24 are arranged in the holes 23, the slidable rings of the self-lubricating bearings 24 are sleeved on the sliding columns 4, and the outer peripheral surfaces of the self-lubricating bearings 24 are attached to the walls of the holes 23 through interference fit.
By this arrangement, the self-lubricating bearing 24 is arranged to effectively reduce the abrasion of the sliding column 4 and the movable plate 8, so that the movement is smooth and free from clamping stagnation, and therefore, the detection of the parking brake force can be more accurate.
The rack 1 has a rack frame 23, one side of the rack frame 25 has a plurality of support legs 26, the support legs 26 are fixedly connected to one side of the rack frame 25, the first vertical plate 2 and the second vertical plate 3 are vertically connected to the other side of the rack frame 25, and the arrangement is convenient for saving cost.
The outer side of the first vertical plate 2 is provided with a base plate 27, the base plate 27 is fixedly connected to the table frame 25, the base plate 27 is provided with a plurality of supporting members 28, one horizontal end of the supporting members 28 is fixedly connected to the base plate 27, and one vertical end of the supporting members 28 is fixedly connected to the outer side of the first vertical plate 2.
So configured, the support member 28 effectively supports the first riser 2, so that the first riser 2 is more stable.
The other ends of the sliding columns 4 are located outside the second vertical plate 2, nuts 29 are arranged at the other ends of the sliding columns 4, the nuts 29 are rotatably connected to the other ends of the sliding columns 4, and gaskets 30 are arranged between the nuts 29 and the second vertical plate 3.
So set up, convenient to detach or change movable mechanism 7 and slip post 4 are favorable to later maintenance and maintenance.
The first through hole 9 is located at the center of the movable plate 8, the outer peripheral surface of the knuckle bearing 14 is bonded to the wall of the first through hole 9, and the outer peripheral surface of the sensor connecting rod 13 is bonded to the inner peripheral surface of the knuckle bearing 14.
By installing the knuckle bearing 14 at the center of the movable plate 8, the influence of high center error on the movement of the movable plate is reduced.
One end of the sensor 12 is detachably connected to one end of the push rod 11, and the other end of the sensor 12 is detachably connected to one end of the sensor connecting rod 13.
So arranged, the replacement of the sensor 12 and the push rod 11 is facilitated to be adapted to the test of various types of brake cylinders 16.
The connection between the sensor 12 and the push rod 11 and the sensor connecting rod 13 is a threaded connection.
The hand-buffering test mechanism 20 has a reinforcing plate 31, wherein a vertical edge of the reinforcing plate 31 is fixedly connected to an outer side surface of the table frame 25, a mounting plate 32 is connected to a horizontal edge of the reinforcing plate 31, the mounting plate 32 is parallel to a top surface of the table frame 25, a plurality of mounting posts 33 are provided on the mounting plate 32, the mounting posts 33 are parallel to each other, one ends of the mounting posts 33 are fixedly connected to the mounting plate 32, the other ends of the mounting posts 33 are provided with clamping members 34 adapted to the cylinder 21, one side of the clamping members 34 is connected to the cylinder 21, and the other side of the clamping members 34 is connected to the other ends of the mounting posts 33.
The outer end of the telescopic rod 22 is provided with a connecting hole 35, and the pull ring 19 is detachably connected in the connecting hole 35.
Referring to fig. 1 and 2, in one implementation of the present embodiment: the test method of the test bed for the railway wagon parking brake cylinder is also provided, and the performance test of the conventional brake cylinder is as follows: the brake cylinder 16 is inflated first, the piston 17 of the brake cylinder 16 extends to push the push rod 11 to move forward, the push rod 11 pushes the movable plate 8 to move forward, when the movable plate 8 abuts against the elastic member 5, the elastic member 5 starts to be compressed, and when the brake cylinder 16 is exhausted, the piston 17 retreats, and the elastic member 5 pushes the movable mechanism 7 back.
Parking brake test and detection of parking brake force: when parking brake is applied, the brake cylinder 16 is exhausted, but the piston rod in the brake cylinder 16 is locked, the piston 17 cannot retract, at this time, the movable mechanism 7 stops moving, the sensor 12 displays a parking brake force value, and when parking brake is released, the elastic member 5 pushes the movable mechanism 7 back.
Manual relief test: when the manual release function is not needed, the telescopic rod 22 of the air cylinder 21 is kept in an extending state, when the manual release is needed, the air cylinder 21 is inflated, the telescopic rod 22 of the air cylinder 21 is retracted, and the telescopic rod 22 pulls the pull ring 19, so that the manual release of the brake cylinder 16 is realized.
In this embodiment, the installation of various railway wagon parking brake cylinders 16 with diameters of 6 inches to 12 inches can be satisfied by replacing the accommodating plate 15 of the parking brake cylinder 16, and the travel requirements of different models of parking brake cylinders 16 can be adapted by replacing the push rod 11, so that the test bed can be suitable for various railway wagon parking brake cylinders 16.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A test method of a test bed for a railway wagon parking brake cylinder is characterized by comprising the following steps of:
comprises a test bed, wherein the test bed is provided with a bench;
the rack is provided with a first vertical plate and a second vertical plate, a plurality of sliding columns are arranged between the first vertical plate and the second vertical plate, one ends of the sliding columns are fixedly connected to the first vertical plate, and the other ends of the sliding columns are detachably connected to the second vertical plate;
one end of each sliding column is provided with a plurality of elastic pieces and a plurality of sleeves, the elastic pieces are sleeved on one end of each sliding column in a ring mode, the sleeves are fixedly connected to one side of the first vertical plate, and the elastic pieces are located in the sleeves respectively;
the sliding columns are provided with movable mechanisms, each movable mechanism is provided with a movable plate, each movable plate is slidably connected to the corresponding sliding column, each movable plate is provided with a first through hole, each second vertical plate is provided with a second through hole, the first through holes and the second through holes are all located on the same axis, each second through hole is internally provided with a push rod, one end of each push rod is provided with a sensor, one end of each push rod is connected with one end of each sensor, the other end of each sensor is connected with a sensor connecting rod, each sensor connecting rod is provided with a joint bearing on the outer peripheral surface of each sensor connecting rod, each sensor connecting rod is arranged in each joint bearing in an interference fit manner, and each joint bearing is arranged in each first through hole in an interference fit manner;
the other end of the push rod is provided with a containing plate which is detachably connected to the rack, a brake cylinder is arranged on the containing plate, a piston rod is arranged in the brake cylinder, one end of the piston rod is provided with a piston, and the piston is connected to the other end of the push rod;
the outer side surface of the brake cylinder is provided with a manual release mechanism, the manual release mechanism is provided with a pull ring, the outer side of the manual release mechanism is provided with a manual release test mechanism, the manual release test mechanism is provided with a cylinder, one end of the cylinder is provided with a telescopic rod, and the outer end of the telescopic rod is detachably connected with the pull ring;
the first through hole is positioned in the center of the movable plate, the outer peripheral surface of the joint bearing is attached to the hole wall of the first through hole, and the outer peripheral surface of the sensor connecting rod is attached to the inner peripheral surface of the joint bearing;
one end of the sensor is detachably connected to one end of the push rod, and the other end of the sensor is detachably connected to one end of the sensor connecting rod;
the movable plate is provided with a plurality of holes which are adapted to a plurality of sliding columns, and the other ends of the sliding columns penetrate through the holes and are detachably connected to the plate surface of the second vertical plate;
self-lubricating bearings are arranged in the holes, a slidable ring of each self-lubricating bearing is sleeved on the sliding columns, and the outer peripheral surfaces of the self-lubricating bearings are attached to the walls of the holes through interference fit;
conventional brake cylinder performance test: firstly inflating the brake cylinder, wherein a piston of the brake cylinder extends out to push the push rod to move forwards along with the piston, the push rod pushes the movable plate to move forwards, when the movable plate abuts against the elastic piece, the elastic piece starts to be compressed, and when the brake cylinder is exhausted, the piston retreats, and the elastic piece pushes the movable mechanism back;
parking brake test and detection of parking brake force: when parking braking is implemented, although the braking cylinder is exhausted, a piston rod in the braking cylinder is locked, the piston cannot retract, at the moment, the movable mechanism stops moving, a sensor displays a parking braking force value, and when the parking braking is released, the spring force pushes the movable mechanism back;
manual relief test: when the manual release function is not needed, the telescopic rod of the air cylinder is kept in an extending state, when the manual release is needed, the air cylinder is inflated, the telescopic rod of the air cylinder is retracted, the telescopic rod pulls the pull ring, and the manual release of the brake cylinder is achieved.
2. The test method of the test stand for the railway wagon parking brake cylinder according to claim 1, wherein:
the rack is provided with a rack frame, one side of the rack frame is provided with a plurality of supporting legs, the supporting legs are fixedly connected to one side of the rack frame, and the first vertical plate and the second vertical plate are vertically connected to the other side of the rack frame.
3. The test method of the test stand for the railway wagon parking brake cylinder according to claim 2, wherein:
the outer side of the first vertical plate is provided with a base plate which is fixedly connected to the table frame, the base plate is provided with a plurality of supporting pieces, one horizontal end of each supporting piece is fixedly connected to the base plate, and one vertical end of each supporting piece is fixedly connected to the outer side of the first vertical plate.
4. The test method of the test stand for the railway wagon parking brake cylinder according to claim 1, wherein:
the other ends of the sliding columns are positioned at the outer sides of the second vertical plates, nuts are arranged at the other ends of the sliding columns, the nuts are rotatably connected to the other ends of the sliding columns, and gaskets are arranged between the nuts and the second vertical plates.
5. The test method of the test stand for the railway wagon parking brake cylinder according to claim 2, wherein:
the hand is slow to test mechanism has the reinforcing plate, the vertical limit fixed connection of reinforcing plate in the lateral surface of platform frame, the horizontal edge of reinforcing plate is connected with the mounting panel, the mounting panel is on a parallel with the top surface of platform frame, be equipped with a plurality of erection columns on the mounting panel, a plurality of the erection columns are parallel to each other, and a plurality of the one end fixed connection of erection column in the mounting panel, a plurality of the other end of erection column is equipped with the adaptation in the holder of cylinder, one side of holder connect in the cylinder, the another side of holder connect in a plurality of the other end of erection column.
6. The test method of the test stand for the railway wagon parking brake cylinder according to claim 1, wherein:
the outer end of the telescopic rod is provided with a connecting hole, and the pull ring is detachably connected in the connecting hole.
Priority Applications (1)
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| CN202011599687.7A CN112781898B (en) | 2020-12-29 | 2020-12-29 | Test bed for railway wagon parking brake cylinder and test method thereof |
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| CN202011599687.7A CN112781898B (en) | 2020-12-29 | 2020-12-29 | Test bed for railway wagon parking brake cylinder and test method thereof |
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| CN112781898B true CN112781898B (en) | 2023-08-18 |
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