CN219686999U - Highway and railway dual-purpose maintenance operation vehicle - Google Patents

Abstract

The utility model discloses a highway and railway dual-purpose overhaul operation vehicle, which comprises the following components: cab, frame, highway running gear, railway running gear, grab rail ware, operation platform, lorry-mounted crane and guardrail. The road travelling mechanism and the railway travelling mechanism are arranged below the frame, and the railway travelling mechanism comprises a lifting device and a travelling wheel assembly. The road running system is supported to leave the ground by the lifting device, and the road and railway dual-purpose maintenance operation vehicle is driven by the road running assembly to run on the railway. The rotatable and lifting working platform is arranged above the frame, and the lorry-mounted crane is rotatably arranged on the frame so as to meet the maintenance operation of the electrified railway.

Description

Highway and railway dual-purpose maintenance operation vehicle

Technical Field

The utility model relates to the technical field of highway and railway construction equipment, in particular to a highway and railway dual-purpose overhaul operation vehicle.

Background

At present, a combined mode that a rail car carries a liftable operation platform is often used for executing tasks in the maintenance work of an urban rail transit contact net, and the maintenance operation car can only carry out maintenance operation after a railway on a rail runs to a maintenance target position. Because the railway line overhauls the empty window period time to be limited, only can the line stop the back reach the maintenance place from the car factory, the time is long, the transition is difficult, has shortened actual construction time, so makes the cost higher.

Disclosure of Invention

The utility model provides a highway and railway dual-purpose overhaul operation vehicle, which shortens the preparation time, increases the construction operation time in a skylight period, has unfolding and folding states, facilitates the operation of a crane, improves the construction efficiency of overhaul operation, and simultaneously improves the convenience and safety of a detection vehicle.

The utility model provides the following technical scheme:

a highway and railway dual-purpose maintenance work vehicle, comprising:

the vehicle comprises a vehicle frame, wherein a highway running mechanism and a railway running mechanism are arranged below the vehicle frame, and the railway running mechanism comprises a lifting device and a travelling wheel assembly;

the working platform is connected to the frame and is provided with a workbench which can move up and down and/or rotate;

the lorry-mounted crane is rotatably arranged on the frame through a first slewing support device and is positioned behind the operation platform; the periphery of the lorry-mounted crane is provided with a foldable guardrail;

the highway and railway dual-purpose overhaul operation vehicle is provided with a highway-railway switching mode, a highway walking mode and a railway walking mode: in the highway-railway switching mode, the lifting device lifts the walking wheel assembly so that the walking wheel assembly is higher than the highway walking mechanism, or the lifting device lowers the walking wheel assembly so that the walking wheel assembly is lower than the highway walking mechanism; in the road walking mode, the walking wheel assembly is higher than the road walking mechanism, and the road walking mechanism can drive the road and railway dual-purpose inspection operation vehicle to walk; and in the railway walking mode, the walking wheel assembly is lower than the road walking mechanism and can drive the road and railway dual-purpose inspection operation vehicle to walk.

Optionally, the road and railway dual-purpose maintenance operation vehicle further comprises an electrical control system, wherein the electrical control system is used for controlling the lifting device to lift or lower the travelling wheel assembly in the road and railway dual-purpose mode.

Optionally, the road and railway dual-purpose maintenance operation vehicle further comprises a traveling wheel assembly locking device, wherein the traveling wheel assembly locking device is used for locking the traveling wheel assembly after the traveling wheel assembly is lifted to a preset position;

and the road travelling mechanism locking device is used for locking the road travelling mechanism when the travelling wheel assembly is lowered to a preset position.

Optionally, the guardrail has a walking bar, the guardrail has an unfolded state and a folded state, in the unfolded state, a first distance is provided between the walking bar and the frame, and in the folded state, a second distance is provided between the walking bar and the frame, wherein the first distance is greater than the second distance.

Optionally, the guardrail comprises a plurality of bases and a plurality of vertical rods;

each base is fixed on the frame;

one end of each upright rod is hinged to the base, and the other end of each upright rod is hinged to the hand rod;

in the unfolded state, each upright is perpendicular to the frame.

Optionally, one base is provided with two first pin shaft holes, and a second pin shaft hole is arranged on the upright rod corresponding to the base;

in the unfolded state, the pin shaft penetrates through the second pin shaft hole and one first pin shaft hole;

in the folded state, the pin shaft penetrates through the second pin shaft hole and the other first pin shaft hole.

Optionally, the road and railway dual-purpose overhaul operation vehicle comprises a first rotary support, wherein the first rotary support is arranged on the frame;

the lorry-mounted crane is provided with a suspension arm and a hoisting mechanism arranged on the suspension arm;

the boom is connected to the first slewing bearing.

Optionally, the road and rail dual-purpose overhaul operation vehicle comprises a rail grabbing device, wherein the rail grabbing device is connected with the frame;

the rail grabber has a clamp having a gripping state for grabbing a rail.

Optionally, the rail grabbing device comprises a fixed seat, a screw, a chain and a locking frame;

the fixed seat is connected with the frame, the screw rod is connected with the fixed seat, the chain is connected with the screw rod, and the clamp is connected with the chain;

the clamp is provided with two clamping arms which are rotatably connected;

when the locking frame is sleeved on the two clamping arms, the clamp is in the gripping state.

Optionally, the road and railway dual-purpose overhaul operation vehicle comprises a coupler assembly, wherein the coupler assembly is provided with a connecting seat and a coupler;

the connecting seat is connected to the frame;

the connecting seat is provided with a sliding block with adjustable height, and the coupler is hinged to the sliding block.

Optionally, the connecting seat is provided with a chute, a top plate and a screw rod;

the lead screw penetrates through the top plate and is rotatably connected to the top plate;

the sliding block is slidably connected to the sliding groove, the sliding block is provided with a thread groove, and the sliding block is in threaded connection with the screw rod;

the screw rod rotation can drive the sliding block to translate along the sliding groove.

Optionally, a second slewing support is arranged on the frame;

the working platform comprises a lifting column, the lifting column is connected with the second rotary support, and the workbench is connected with the lifting column.

By adopting the technical scheme, the embodiment of the utility model has the following technical effects:

the road-railway dual-purpose overhaul operation vehicle can realize road-railway conversion at road crossings, factories and the like of urban rail transit, shortens the preparation time, increases the construction time of a skylight period and improves the construction efficiency of overhaul operation; in addition, the foldable guardrail is arranged on the periphery of the lorry-mounted crane, and when the lorry-mounted crane works, the guardrail can be conveniently folded and put down, so that the lorry-mounted crane can conveniently rotate. When the lorry-mounted crane does not work, the guardrail can be conveniently unfolded, and convenience and safety of detecting the vehicle are improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:

FIG. 1 is a schematic diagram of a whole vehicle structure of a highway and railway dual-purpose overhaul operation vehicle provided by the utility model;

FIG. 2 is a schematic structural view of a rail grabber of the road and rail dual-purpose maintenance operation vehicle provided by the utility model;

FIG. 3 is a schematic structural view of a guardrail of the road and rail dual-purpose overhaul operation vehicle provided by the utility model;

FIG. 4 is a schematic structural view of a coupler of the road and rail dual-purpose overhaul operation vehicle provided by the utility model;

FIG. 5 is a schematic structural view of a front traveling mechanism of the road and rail dual-purpose maintenance operation vehicle provided by the utility model;

FIG. 6 is a schematic structural view of a rear traveling mechanism of the road and rail dual-purpose maintenance operation vehicle provided by the utility model;

FIG. 7 is a logic schematic diagram of an electrical control system of the road and rail dual-purpose overhaul operating vehicle provided by the utility model;

FIG. 8 is a schematic perspective view of a lorry-mounted crane of the road and rail dual-purpose overhaul operation vehicle;

fig. 9 is a schematic perspective view of a workbench of the road and rail dual-purpose maintenance work vehicle.

Reference numerals: frame 1, road running gear 11, railway running gear 12, lifting device 121, travelling wheel assembly 122, frame 123, front running gear 12a, front cylinder 12101, front rod 12102, front rod 12103, front swivel support 12104, rear running gear 12b, rear mount 12105, rear cylinder 12106, rear rod 12107, rear mount 12108, rear rod 12109, rear support 12110, rear swivel support 12111, work platform 2, table 21, folding rail 211, lifting column 22, lorry-mounted crane 3, boom 31, first boom 311, second boom 312, lifting mechanism 32, hook 321, hoisting mechanism 322, rope 323, luffing cylinder 33, valve box 34, rail 4, hand rail 41, arm 411, base 42, first pin hole 421, upright 43, pin 44, rail grabber 5, clamp 51, clamp arm 511, mount 52, screw 53, chain 54, locking frame 55, coupler assembly 6, connection mount 61, slide block 611, slide groove 612, top plate 613, coupler 614, coupler 62, second swivel support 7, second swivel support 8, ladder stand 8 b, climbing mechanism 9 b.

Detailed Description

In order to make the technical solutions and advantages of the embodiments of the present utility model more apparent, the following detailed description of exemplary embodiments of the present utility model is provided in conjunction with the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present utility model and not exhaustive of all embodiments. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

Referring to fig. 1 to 4, an embodiment of the present utility model provides a highway and railway dual-purpose maintenance vehicle, including: a frame 1, a working platform 2, a lorry-mounted crane 3 and a guardrail 4. The vehicle frame 1 is provided with a highway running mechanism 11 and a railway running mechanism 12, and the railway running mechanism 12 comprises a lifting device 121 and a travelling wheel assembly 122. The work platform 2 is connected to the frame 1, the work platform 2 has a work table 21, and the work table 21 can move up and down and/or rotate. The lorry-mounted crane 3 is rotatably arranged on the frame 1 through a first slewing bearing arrangement and is positioned behind the working platform 21; the periphery of the lorry-mounted crane 3 is provided with a foldable guardrail 4. The guardrail 4 set up in the week side of lorry-mounted crane 3, guardrail 4 has hand lever 41, guardrail 4 has expansion state and folding state in the expansion state, hand lever 41 with have first interval between frame 1, in the folding state, hand lever 41 with have the second interval between frame 1, wherein, first interval is greater than the second interval.

The road and railway dual-purpose maintenance operation vehicle has a road-to-rail conversion mode, a road walking mode and a railway walking mode, in which the lifting device 121 lifts the walking wheel assembly 122 such that the walking wheel assembly 122 is higher than the road walking mechanism 11, or the lifting device 121 lowers the walking wheel assembly 122 such that the walking wheel assembly 122 is lower than the road walking mechanism 11; in the road traveling mode, the traveling wheel assembly 122 is higher than the road traveling mechanism 11, and the road traveling mechanism 11 can drive the road and railway dual-purpose inspection operation vehicle to travel and operate; in the railway running mode, the running wheel assembly 122 is lower than the road running mechanism 11, and can drive the road and railway dual-purpose inspection operation vehicle to run and operate. The highway-railway switching mode, the highway walking mode and the railway walking mode are mutually independent, so that different walking functions are realized. In the road running mode, the lifting device 121 lifts the road wheel assembly 122, so that the road wheel assembly 122 of the railway running gear 12 is suspended, and the tires of the road running gear 11 can be directly supported on the road. When the railway running mode is used, the lifting device 121 has lowered the travelling wheel assembly 122 to a low position, so that the travelling wheel assembly 122 is lower than the road running gear 11, the travelling wheel assembly 122 can be directly supported on the rail, and the tires of the road running gear 11 are in a suspended state.

The embodiment of the utility model is also provided with an electrical control system for controlling the lifting device to lift or lower the travelling wheel assembly, as shown in fig. 7, so that the lifting action of the travelling wheel assembly (mainly directly controlled bogie) is allowed to be controlled only in a male-female conversion mode, the up-and-down operation of the vehicle is realized, and the safety risk caused by misoperation in other modes is avoided. The road wheel assembly locking device is used for locking the road wheel assembly after the road wheel assembly is lifted to a preset position, so that in a road running mode, the road wheel assembly (mainly a bogie and a wheel set) is lifted and locked to allow a vehicle to run, and the safety risk caused by falling of the road wheel assembly is avoided. Correspondingly, the road running mechanism locking device is used for locking the road running mechanism when the running wheel assembly is lowered to a preset position, so that the road running mechanism walks or carries out railway operation in a railway running mode, and the road running mechanism (mainly a rubber wheel axle) is required to be lifted and locked to allow railway running, so that the safety risk caused by falling of the road running mechanism is avoided.

The railway running gear comprises a front running gear 12a and a rear running gear 12b, and the front running gear 12a and the rear running gear 12b are both connected to the frame. The front travelling mechanism 12a and the rear travelling mechanism 12b are respectively provided with a lifting device 121 and a travelling wheel assembly 122, the structures of the front travelling mechanism 12a and the rear travelling mechanism 12b are different, the front travelling mechanism 12a and the rear travelling mechanism 12b of the railway travelling mechanism are respectively provided with a frame 123, the frames 123 are connected with the lifting device 121, and the travelling wheel assemblies 122 are connected with the frames 123.

As shown in fig. 5, the lifting device 121 of the front travelling mechanism 12a includes a front cylinder 12101, a front rod 12102, a front rod 12103, and a front swing support 12104. Wherein, two ends of the front cylinder 12101 are respectively connected with the frame 1 and the front rod 12103 through pin shafts, and the front rod 12102 and the front rod 12103 are respectively hinged with the front frame 123. When the front travelling mechanism 12a needs to be lifted, the front cylinder 12101 contracts to drive the front rod 12103 to rotate around the upper hinge point, and further drive the frame 123 of the front travelling mechanism 12a to move upwards, so that the front rod 12102 rotates, and the front rod 12102 can ensure that the front frame 123 does not incline horizontally. The reverse front travel mechanism 12a is lowered in reverse. The front frame 123 is provided with a front rotary support 12104, so that the front frame 123 can rotate at a certain angle, and the maintenance operation vehicle can conveniently pass through a curve line.

As shown in fig. 6, the lifting device 121 of the rear travelling mechanism 12b includes a rear fixed seat 12105, a rear cylinder 12106, a rear rod 12107, a rear mounting seat 12108, a rear rod 12109, a rear support 12110, and a rear swing support 12111. Wherein, two ends of the rear oil cylinder 12106 are respectively connected with the rear fixed seat 12105 and the rear rod 12109, one end of the rear rod 12109 is hinged with the rear mounting seat 12108, the other end is respectively hinged with the rear oil cylinder 12106 and the rear supporting member 12110 through the same hinge point, and the other end of the rear supporting member 12110 is respectively hinged with the rear rod 12107 and the frame 123 of the rear travelling mechanism 12b through the same hinge point. When the rear travelling mechanism 12b is lifted upwards, the rear cylinder 12106 contracts, pulls the rod 12109 to rotate upwards, drives the hinge point on the rear support 12110 to rotate upwards, and further lifts the frame 123 of the rear travelling mechanism 12b, and the rear rod 12107 restricts the forward movement of the rear frame 123 and the rear tire to interfere with each other by the rear support 12110. Conversely, the rear running gear 12b is lowered in reverse. The back frame 123 is provided with a rotary support 12111, so that the back frame 123 can rotate at a certain angle, and the rail and the curve passing of the road and railway dual-purpose maintenance operation vehicle are convenient.

According to the road and rail dual-purpose overhaul operation vehicle, the foldable guardrail 4 is arranged on the periphery of the lorry-mounted crane 3, and when the lorry-mounted crane 3 works, the guardrail 4 can be conveniently folded and put down, so that the lorry-mounted crane 3 can conveniently rotate. When the lorry-mounted crane 3 does not work, the guardrail 4 can be conveniently unfolded, so that the convenience and safety of the overhaul vehicle are improved.

As shown in fig. 3, the guardrail 4 includes a plurality of bases 42 and a plurality of uprights 43, each base 42 is fixed to the frame 1, each upright 43 is hinged at one end to the base 42, and at the other end to the hand rail 41. In the unfolded state, each upright 43 is perpendicular to the frame 1.

One of the bases 42 has two first pin holes 421, the first pin holes 421 are used for locking the folding and unfolding states of the guard rail 4, and the corresponding upright posts 43 of the base 42 are provided with second pin holes (not shown). In the unfolded state, the pin shaft 44 is disposed through the second pin shaft hole and one of the first pin shaft holes 421. In the folded state, the pin shaft 44 is disposed through the second pin shaft hole and the other first pin shaft hole 421. In the process of executing tasks, when the lorry-mounted crane 3 needs to swing to one side, a first pin shaft hole pin shaft on the guardrail 4 can be pulled out, the hand bar 41 is pushed to one side, the hand bar 41 and the vertical bar 43 can rotate around the base 42, the vertical bar 43 rotates to a position parallel to the frame 1, the height of the guardrail 4 is reduced, the guardrail 4 cannot interfere with the operation of the crane 3, the hoisting task is conveniently executed by swinging the boom 31 of the lorry-mounted crane 3, after the operation tasks are completed, an operator can lift the hand bar 41, the hand bar 41 and the vertical bar 43 rotate, when the vertical bar 43 is approximately perpendicular to the frame 1, the first pin shaft hole 421 is opposite to the eyelet, and the locking pin shaft is inserted into the eyelet, so that the vertical bar 43 of the guardrail 4 is in a vertical state, and the safety protection effect can be achieved.

Two sets of guardrails 4 may be provided, the two sets of guardrails 4 being respectively provided on both sides of the lorry-mounted crane 3, or the two sets of guardrails 4 being respectively provided on both sides of the frame 1 in the width direction. Or, set up four sets of guardrails 4, two sets of guardrails 4 adjacent in four sets of guardrails 4 hang down mutually, and two sets of guardrails 4 set up respectively in the both sides of lorry-mounted crane 3, and two sets of guardrails 4 set up respectively in the front portion and the rear portion of lorry-mounted crane 3 in addition, four sets of guardrails 4 encircle lorry-mounted crane 3 four faces in circumference, form a square or rectangular rail, can play the omnidirectional safety protection effect to lorry-mounted crane 3.

As shown in fig. 3, the armrest 41 is provided with a plurality of armrests 411, and each of the armrests 411 is sequentially arranged at intervals along the length direction of the armrest 41. The plurality of handrails 411 facilitate pushing or pulling by hand when the barrier 4 is folded and unfolded.

In one possible embodiment, as shown in fig. 1 and 8, the first swing support 7 of the road-and-rail service vehicle is disposed on the frame 1, and the lorry-mounted crane 3 has a boom 31 and a hoisting mechanism 32 disposed on the boom 31, and the boom 31 is connected to the first swing support 7. The truck-mounted crane 3 adopts a straight arm hydraulic crane, the hoisting mechanism 32 can comprise a hook 321, a hoisting mechanism 322 and a rope 323, the boom 31 comprises a first straight arm 311 and a second straight arm 312, one end of the first straight arm 311 is connected with the hoisting mechanism 32, the other end of the first straight arm 311 is hinged with one end of the second straight arm 312, the second straight arm 312 is a telescopic arm, the length of the second straight arm can be adjusted by extending or shortening, the top of the first rotary support 7 is further provided with an amplitude cylinder 33, one end of the amplitude cylinder 33 is hinged with the second straight arm 312, and the other end of the amplitude cylinder 33 is hinged with the first straight arm 311 or the first rotary support 7. The lorry-mounted crane 3 further comprises a valve box 34, wherein the valve box 34 is connected with the luffing cylinder 33. When the lorry-mounted crane 3 works, the angle of the lorry-mounted crane 3 is regulated by the first rotary support 7 in a rotary way, elevation angle change is formed by lifting of the amplitude-variable oil cylinder 33, the second straight arm 312 stretches and contracts, the position of the hook 321 is regulated, the winding mechanism 322 winds the winding rope 323, the hook 321 moves up and down to lift objects, and the lorry-mounted crane 3 can rotate 360 degrees by the first rotary support 7. The hook 321 of the lorry-mounted crane 3 can conveniently move to the periphery side and the rear of the highway and railway dual-purpose maintenance operation vehicle to carry out hoisting operation.

In one possible embodiment, as shown in fig. 2, the road and rail service vehicle includes a rail grabber 5, the rail grabber 5 is connected to the frame 1, the rail grabber 5 has a clamp 51, and the clamp 51 has a clamping state for clamping a rail. The clamp 51 clamps the rail so that the road and railway dual-purpose maintenance operation vehicle of the utility model runs on the rail and is not easy to break away from the rail. The rail grabber 5 is used on a curved track and under strong wind weather conditions, so that the anti-overturning stability of the overhaul operation vehicle is improved.

As shown in fig. 2, the rail grabber 5 includes a fixing base 52, a screw 53, a chain 54, and a locking frame 55, wherein the fixing base 52 is connected to the frame 1, the screw 53 is connected to the fixing base 52, the chain 54 is connected to the screw 53, and the clamp 51 is connected to the chain 54. The clamp 51 has two clamp arms 511, and the two clamp arms 511 are rotatably connected. When the locking frame 55 is fitted over the two clip arms 511, the clip 51 is in the gripping state. The upper part of the screw 53 is connected with the fixed seat 52 through a nut, the lower part is connected with the chain 54 through the pin shaft 44, and the height of the rail grabbing device 5 can be adjusted by the height of the screw 53, so that the rail grabbing is facilitated. When the steel rail is grabbed, the locking frame 55 is lifted, the clamp 51 is grabbed by the steel rail, the locking frame 55 falls to lock the clamp 51, and the anti-overturning stability of the whole car is improved.

In one possible embodiment, as shown in fig. 4, the road and rail service vehicle includes a coupler assembly 6, the coupler assembly 6 has a coupling seat 61 and a coupler 62, the coupling seat 61 is connected to the frame 1, the coupling seat 61 has a slider 611 with adjustable height, and the coupler 62 is hinged to the slider 611.

As shown in fig. 4, the connection base 61 has a slide groove 612, a top plate 613 and a screw 614, the screw 614 is disposed through the top plate 613, the screw 614 is rotatably connected to the top plate 613, the slider 611 is slidably connected to the slide groove 612, the slider 611 has a threaded groove, the slider 611 and the screw 614 are in threaded connection, and rotation of the screw 614 can drive the slider 611 to translate along the slide groove 612. When the coupler 62 is connected, the screw 614 rotates to drive the sliding block 611 to lift along the sliding groove 612, so that the lifting of the coupler 62 is realized, and the coupler 62 is connected with the sliding block 611, so that the deflection of the coupler 62 is realized.

As shown in fig. 1 and 9, the second rotary support 8 is disposed on the frame 1, the working platform 2 includes a lifting column 22, the lifting column 22 is connected to the second rotary support 8, the lifting column 22 may be a lifting cylinder, the working table 21 is connected to the lifting column 22, the second rotary support 8 is disposed on the lower portion of the lifting column 22, the second rotary support 8 rotates to drive the working platform 2 thereon to rotate, the working table 21 can lift vertically through the lifting column 22, and the working table 21 can be sent to a designated working position through the rotation of the second rotary support 8 and the lifting of the lifting column 22, so as to facilitate the maintenance of the contact net structure with different heights and different positions in the maintenance work of the electrified railway.

A crawling ladder b is arranged between the second rotary support 8 and the workbench 21, so that workers can conveniently go up and down. The work platform 2 further comprises a slewing mechanism a, and the slewing mechanism a is in transmission connection with the second slewing support 8 so as to drive the second slewing support 8 to rotate. The frame 1 is also provided with a support rod 9, and the support rod 9 is used for supporting a workbench 21 during transportation. The folding guardrail 211 is arranged on the workbench 21, and when the folding guardrail 211 is unfolded, the folding guardrail 211 can play a role in protecting workers, after the work is finished, the folding guardrail 211 can be folded, and the height of the working vehicle is reduced.

In the present utility model and its embodiments, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrated; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model and its embodiments, unless explicitly specified and limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include both the first and second features not being in direct contact but being in contact with each other by way of additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is less level than the second feature.

The above disclosure provides many different embodiments, or examples, for implementing different structures of the utility model. The foregoing description of specific example components and arrangements has been presented to simplify the present disclosure. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present utility model provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

While preferred embodiments of the present utility model have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the utility model.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims (12)

1. The utility model provides a dual-purpose maintenance operation car of highway and railway which characterized in that includes:

the vehicle comprises a vehicle frame, wherein a highway running mechanism and a railway running mechanism are arranged below the vehicle frame, and the railway running mechanism comprises a lifting device and a travelling wheel assembly;

the working platform is connected to the frame and is provided with a workbench which can move up and down and/or rotate;

the lorry-mounted crane is rotatably arranged on the frame through a first slewing support device and is positioned behind the operation platform; the periphery of the lorry-mounted crane is provided with a foldable guardrail;

the highway and railway dual-purpose overhaul operation vehicle is provided with a highway-railway switching mode, a highway walking mode and a railway walking mode: in the highway-railway switching mode, the lifting device lifts the walking wheel assembly so that the walking wheel assembly is higher than the highway walking mechanism, or the lifting device lowers the walking wheel assembly so that the walking wheel assembly is lower than the highway walking mechanism; in the road walking mode, the walking wheel assembly is higher than the road walking mechanism, and the road walking mechanism can drive the road and railway dual-purpose inspection operation vehicle to walk; and in the railway walking mode, the walking wheel assembly is lower than the road walking mechanism and can drive the road and railway dual-purpose inspection operation vehicle to walk.

2. The highway and railway service work vehicle according to claim 1, further comprising an electrical control system for controlling the lifting device to lift or lower the road wheel assembly in the highway and railway mode.

3. The highway and railway service work vehicle according to claim 2, further comprising a road wheel assembly locking device for locking the road wheel assembly after the road wheel assembly is lifted to a predetermined position;

and the road travelling mechanism locking device is used for locking the road travelling mechanism when the travelling wheel assembly is lowered to a preset position.

4. The highway and railway service vehicle according to claim 1, wherein the guardrail has a handle bar, the guardrail having an expanded state in which a first spacing is provided between the handle bar and the frame, and a collapsed state in which a second spacing is provided between the handle bar and the frame, wherein the first spacing is greater than the second spacing.

5. The highway and railway service vehicle according to claim 4, wherein the guardrail comprises a plurality of bases and a plurality of uprights;

each base is fixed on the frame;

one end of each upright rod is hinged to the base, and the other end of each upright rod is hinged to the hand rod;

in the unfolded state, each upright is perpendicular to the frame.

6. The highway and railway dual-purpose overhaul operating vehicle according to claim 5, wherein one base is provided with two first pin shaft holes, and a second pin shaft hole is arranged on a corresponding upright rod of the base;

in the unfolded state, the pin shaft penetrates through the second pin shaft hole and one first pin shaft hole;

in the folded state, the pin shaft penetrates through the second pin shaft hole and the other first pin shaft hole.

7. The highway and railway dual-purpose overhaul working vehicle according to claim 1, wherein the lorry-mounted crane is provided with a suspension arm and a hoisting mechanism arranged on the suspension arm;

the boom is connected to the first slewing bearing.

8. The highway and railway service vehicle according to claim 1, comprising a rail grabber connected to the frame;

the rail grabber has a clamp having a gripping state for grabbing a rail.

9. The highway and railway dual-purpose overhaul operating vehicle according to claim 8, wherein the rail grabber comprises a fixed seat, a screw, a chain and a locking frame;

the fixed seat is connected with the frame, the screw rod is connected with the fixed seat, the chain is connected with the screw rod, and the clamp is connected with the chain;

the clamp is provided with two clamping arms which are rotatably connected;

when the locking frame is sleeved on the two clamping arms, the clamp is in the gripping state.

10. The highway and railway service vehicle according to claim 1, comprising a coupler assembly having a coupler socket and a coupler;

the connecting seat is connected to the frame;

the connecting seat is provided with a sliding block with adjustable height, and the coupler is hinged to the sliding block.

11. The highway and railway dual-purpose overhaul working vehicle according to claim 10, wherein the connecting seat is provided with a chute, a top plate and a screw rod;

the lead screw penetrates through the top plate and is rotatably connected to the top plate;

the sliding block is slidably connected to the sliding groove, the sliding block is provided with a thread groove, and the sliding block is in threaded connection with the screw rod;

the screw rod rotation can drive the sliding block to translate along the sliding groove.

12. The highway and railway dual-purpose overhaul operating vehicle according to claim 1, wherein a second slewing support is arranged on the frame;

the working platform comprises a lifting column, the lifting column is connected with the second rotary support, and the workbench is connected with the lifting column.