Working vehicle chassis capable of crossing tracks

Abstract

The utility model discloses a chassis of a track-striding operation vehicle, and belongs to the technical field of track construction and maintenance operation vehicles. Comprising a frame, and front and rear lifting leg assemblies are fixedly mounted at the front and rear ends of the frame respectively; the middle lifting supporting leg assembly is installed in the middle of the frame through the sliding assembly. The sliding assembly comprises a sliding block support fixed to the middle of the frame, and sliding blocks are fixed to the two sides of the sliding block support. The sliding plate is hung below the sliding block support in a sliding manner; the driving device is connected between the sliding block support and the sliding plate and used for driving the sliding plate to move along the sliding block. The middle lifting leg assembly is fixedly installed on the lower side face of the sliding plate. The sliding assembly and the middle lifting supporting leg assembly are arranged in the middle of the vehicle frame, and the vehicle frame can move on and off a ballast bed through a stepping method, so that the vehicle can be transferred to a working place under the condition that the vehicle does not depend on hoisting equipment, and the field adaptability of the vehicle is improved.

Description

Technical Field

[0001] This utility model relates to the field of track construction and maintenance vehicles, specifically to a chassis for a track-crossing vehicle. Background Technology

[0002] During the construction and maintenance of high-speed railway tracks, maintenance vehicles are typically hoisted onto the track bed at designated locations using lifting equipment, and then the vehicles operate along the track route. Because lifting equipment often has high requirements for the construction site, such as hard, uneven ground and space that meets the requirements for outrigger support, maintenance vehicles cannot be moved up and down the track bed at will based on the construction site conditions. Since high-speed railway maintenance operations have a certain time sensitivity, equipment needs to be able to be quickly and flexibly moved between sites; work cannot be suspended simply because lifting equipment is unavailable nearby. Therefore, in reality, it is common to see situations where, in the absence of lifting equipment, primitive methods such as manual labor (pulling and carrying) are used to quickly move equipment onto and off the track bed. This undoubtedly causes overwork injuries to workers and poses certain safety hazards. Utility Model Content

[0003] The purpose of this utility model is to provide a chassis for a cross-track operation vehicle, which can meet the practical needs of the operation vehicle to move up and down the track bed on its own.

[0004] The present invention adopts the following technical solution: a chassis for a cross-track operation vehicle, including a frame;

[0005] Also includes:

[0006] The front and rear lifting outrigger assemblies are respectively fixedly installed at the front and rear ends of the vehicle frame;

[0007] The center lifting outrigger assembly is mounted in the middle of the vehicle frame via a sliding assembly;

[0008] The sliding component includes:

[0009] A slider support is fixed in the middle of the frame; sliders are fixed on both sides of the slider support.

[0010] The sliding plate is slidably suspended below the slider support; the sliding plate has a groove, and the two sides of the groove are respectively slidably engaged with the sliders on both sides;

[0011] A drive device, connected between the slider support and the slide plate, is used to drive the slide plate to move along the slider;

[0012] The lifting support leg assembly is fixedly installed on the lower side of the skateboard.

[0013] Furthermore, the front and rear lifting outrigger assemblies are structurally symmetrical.

[0014] The front lifting outrigger assembly includes:

[0015] Outrigger box, fixed to the front end of the frame;

[0016] A pair of horizontal movable legs are slidably mounted at both ends of the support leg box; a drive cylinder for driving the horizontal movable legs to move along the support leg box is installed inside the support leg box;

[0017] A pair of vertical lifting outriggers I are respectively fixed on the horizontal movable legs on both sides.

[0018] The lower end of the vertical lifting outrigger I is rotatably equipped with a limit wheel.

[0019] The cross-section of the groove on the skateboard is convex, and the groove runs through the skateboard along its length.

[0020] The driving device includes:

[0021] The screw is rotatably connected at both ends to the underside of the slide plate;

[0022] A nut is threaded onto the screw rod; a through groove is provided on the slide plate along the direction of the slider, the through groove is vertically opposite to the screw rod, and one side of the nut passes through the through groove and is fixedly connected to the slider support;

[0023] A geared motor is fixed to the lower side of the slide plate; the output end of the geared motor is fixedly connected to one end of the screw.

[0024] The slider support is fixed at the center of gravity of the vehicle frame.

[0025] The middle lifting support leg assembly includes four vertical lifting support legs II fixed at the four corners of the skateboard.

[0026] The beneficial effects of this utility model are as follows: a sliding component and a middle lifting outrigger component are set in the middle of the frame. The sliding component can control the lateral sliding of the middle lifting outrigger component. In conjunction with the vertical lifting outrigger in the middle lifting outrigger component, the vehicle frame can move up and down the track bed by stepping, so that the vehicle can complete the transfer of the workplace without relying on lifting equipment, thereby improving the site adaptability of the vehicle. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 A perspective view (first view) of a chassis for a cross-track operation vehicle provided for an embodiment of this utility model.

[0029] Figure 2 A perspective view (second view) of a chassis for a cross-track operation vehicle provided for an embodiment of this utility model.

[0030] Figure 3 A front view of a chassis for a cross-track operation vehicle provided in an embodiment of this utility model.

[0031] Figure 4 A bottom view of a chassis for a cross-track work vehicle provided for an embodiment of this utility model.

[0032] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Outrigger box; 3. Horizontal movable leg; 4. Vertical lifting outrigger I; 5. Slide plate; 51. Slide groove; 52. Through groove; 6. Slider support; 61. Slider; 7. Vertical lifting outrigger II; 8. Limit wheel; 9. Drive device; 91. Screw; 92. Nut; 93. Gear motor. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Example 1:

[0035] like Figure 1 , Figure 2 As shown, this utility model provides a chassis for a cross-track operation vehicle, including a frame 1. Front and rear lifting outrigger assemblies are fixedly installed at the front and rear ends of the frame 1, respectively, which can support the frame 1. A middle lifting outrigger assembly is installed in the middle of the frame 1 through a sliding assembly. The middle lifting outrigger assembly and the sliding assembly can support the frame 1 and push the frame 1 to move laterally.

[0036] like Figures 1 to 4 As shown, the sliding assembly mainly includes a slider support 6, a sliding plate 5, and a driving device 9;

[0037] The slider support 6 is fixed at the center of gravity on the lower side of the frame 1. The lower end of the slider support 6 is rectangular, and sliders 61 are fixed on both sides of the lower end of the slider support 6.

[0038] The skateboard 5 is arranged perpendicular to the front and rear direction of the vehicle frame 1. A "convex" - shaped chute 51 is provided on the upper side of the skateboard 5, and the chute 51 runs through the skateboard 5 in the length direction of the skateboard 5. The sliding blocks 61 on both sides are slidably installed on both sides of the chute 51, so that the skateboard 5 is slidably hoisted under the slider support 6 and can slide perpendicular to the front and rear direction of the vehicle frame 1.

[0039] The driving device 9 is used to drive the skateboard 5 to move along the sliding block 61. Specifically: A through - slot 52 is provided on the skateboard 5. The through - slot 52 is parallel to the direction of the sliding block 61. Installation supports are welded to the lower side surface of the skateboard 5 at both ends of the through - slot 52. Both ends of the screw rod 91 are rotatably connected to the installation supports at both ends and are vertically opposite to the through - slot 52. A nut 92 is fitted on the screw rod 91. A flange plate is fixed to one side of the nut 92, and the upper side of the flange plate passes through the through - slot 52 and is fixedly connected to the slider support 6. The reduction motor 93 is fixed to the lower side surface of the skateboard 5, and the output end of the reduction motor 93 is fixedly connected to the end of the screw rod 91 through a coupling. The screw rod 91 can be in the form of a trapezoidal screw or a ball screw. In this embodiment, the ball screw form is adopted to reduce the energy consumption loss caused by friction. When in use, by operating the reduction motor 93, the nut 92 can be controlled to move left and right along the screw rod 91, and finally the left - right movement of the skateboard 5 relative to the vehicle frame 1 is realized.

[0040] The lifting leg assembly in the middle includes four vertical lifting legs II 7, and the four vertical lifting legs II 7 are respectively fixed at the four corner positions of the skateboard 5. The vertical lifting legs II 7 are controlled by hydraulic cylinders and can be lifted to support the vehicle frame 1.

[0041] Embodiment Two:

[0042] Based on the above Embodiment One, combined with Figures 1 to 4 As shown, a suspension, a vehicle axle, a cab, a vehicle power device, an operation module, etc. are installed on the vehicle frame 1. In this embodiment, the front and rear lifting leg assemblies have a symmetrical structure. Taking the front lifting leg assembly as an example:

[0043] The front lifting leg assembly includes a leg box 2 fixed to the front end of the vehicle frame 1. A horizontal movable leg 3 is slidably connected to both ends of the leg box 2 respectively, and a driving cylinder is installed inside the leg box 2. The driving cylinder is used to drive the horizontal movable leg 3 to move horizontally along the leg box 2, so that the horizontal movable leg 3 can extend a certain span according to requirements. A vertical lifting leg I 4 is fixed to the end of each horizontal movable leg 3. The vertical lifting leg I 4 is controlled by a hydraulic cylinder for lifting. A limiting wheel 8 is rotatably installed at the lower end of the vertical lifting leg I 4, and the limiting wheel 8 can freely rotate around its axis.

[0044] When a vehicle is driving on the track bed, the narrow driving surface poses a risk of the vehicle falling off if the driver is not careful. Therefore, during driving, the horizontal movable legs 3 are extended to the sides to a suitable position, so that the inner side of the four limiting wheels 8 is slightly larger than the width of the track bed. The vertical lifting support legs I 4 are extended so that the limiting wheels 8 are lower than the surface of the track bed. In other words, the four limiting wheels 8 hold the frame 1 on the track bed, preventing the vehicle from falling off the track bed due to driving errors.

[0045] Work process:

[0046] Assume the track bed is located on the right side of the vehicle;

[0047] First, drive the vehicle to a position parallel to and close to the track bed, extend the vertical lifting outrigger II7 to lift the entire vehicle so that the lowest point of the chassis (lower edge of the tires) is higher than the surface of the track bed. If necessary, wooden blocks can be temporarily placed under the vertical lifting outrigger II7.

[0048] Then control the reduction motor 93 to push the slider support 6 and the frame 1 to the right to the appropriate position. At this time, if necessary, wooden blocks can be temporarily placed under the tires.

[0049] Then retract the vertical lifting outrigger II7, control the reduction motor 93, and pull the slide plate 5 and the vertical lifting outrigger II7 to the right.

[0050] By performing the above actions consecutively, the vehicle can be moved onto or off the track bed;

[0051] As the vehicle travels along the track bed, as described above, the control device causes the limit wheel 8 to clamp onto the track bed.

[0052] As can be seen from the above embodiments, this utility model innovatively changes the chassis layout, improves the vehicle's site adaptability, and eliminates the need for lifting equipment during the equipment construction process. It can independently complete the transfer of positions with a certain height difference, which can achieve good results in reducing the labor intensity of construction workers, improving construction efficiency, and reducing construction costs.

[0053] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A cross-rail operation vehicle chassis, comprising a frame (1); characterized in that Further comprising: front and rear lifting leg assemblies fixedly installed at the front and rear ends of the frame (1) respectively; a middle lifting leg assembly installed at the middle of the frame (1) through a sliding assembly; wherein the sliding assembly comprises: a sliding block support (6) fixed at the middle of the frame (1); both sides of the sliding block support (6) are fixed with sliding blocks (61); a sliding plate (5) slidingly hoisted below the sliding block support (6); the sliding plate (5) is provided with a sliding groove (51) on it, and both sides of the sliding groove (51) are in sliding cooperation with the sliding blocks (61) on both sides respectively; a driving device (9) connected between the sliding block support (6) and the sliding plate (5) for driving the sliding plate (5) to move along the sliding blocks (61); the middle lifting leg assembly is fixedly installed at the lower side of the sliding plate (5).

2. A cross country vehicle chassis as claimed in claim 1 wherein: The front and rear lifting leg assemblies are structurally symmetrical.

3. The cross-coupe vehicle chassis of claim 1, wherein, The front lifting leg assembly comprises: a leg box (2) fixed at the front end of the frame (1); a pair of horizontal movable legs (3) slidingly installed at both ends of the leg box (2) respectively; a driving cylinder for driving the horizontal movable legs (3) to move along the leg box (2) is installed inside the leg box (2); a pair of vertical lifting legs I (4) fixedly installed on the horizontal movable legs (3) on both sides respectively.

4. A cross country vehicle chassis as claimed in claim 3 wherein: The lower end of the vertical lifting leg I (4) is rotatably installed with a limiting wheel (8).

5. The cross-coupons chassis of claim 1, wherein: The cross section of the sliding groove (51) on the sliding plate (5) is in the shape of "convex", and the sliding groove (51) penetrates through the sliding plate (5) in the length direction of the sliding plate (5).

6. The cross-coupe vehicle chassis of claim 1, wherein, The driving device comprises: a screw rod (91) rotatably connected at both ends of the lower side of the sliding plate (5); a nut (92) threadedly connected on the screw rod (91); the sliding plate (5) is provided with a through groove (52) arranged in the direction of the sliding block (61); the through groove (52) is opposite to the screw rod (91) in the up-down direction, and one side of the nut (92) penetrates through the through groove (52) and is fixedly connected with the sliding block support (6); a speed reducer motor (93) fixed at the lower side of the sliding plate (5); the output end of the speed reducer motor (93) is fixedly connected with one end of the screw rod (91).

7. The cross-coupled track vehicle chassis of claim 1, wherein: The sliding block support (6) is fixed at the center of gravity position of the frame (1).

8. The cross-coupons chassis of claim 1, wherein: The middle lifting leg assembly comprises four vertical lifting legs II (7) fixed at the four corner positions of the sliding plate (5).

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