Rear rack for crossheading car
By introducing a combination structure of buffer airbags, springs and damping sleeves on the rear frame of the roadway car, combined with an electric hydraulic cylinder, the problem of easy breakage of the rear frame of the existing roadway car on bumpy road sections has been solved, and a more stable car body connection has been achieved.
Patent Information
- Application Number
- CN202520164999.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-24
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-01-24
AI Technical Summary
The existing roadbed trucks have a rigid connection between the rear frame and the cargo box, which lacks effective cushioning and makes them prone to breakage on bumpy roads.
A rear frame including a buffer component was designed, employing a combination structure of buffer airbags, buffer springs, and damping sleeves, combined with an electric hydraulic cylinder, to achieve buffering and force adjustment of the carriage.
It effectively reduces the vibration of the carriage on bumpy roads, improves the stability and durability of the connection, and avoids breakage at the connection point.
Smart Images

Figure CN223750954U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of crossheading car, concretely to a rear frame for crossheading car. BACKGROUND
[0002] The crossheading car is a kind of vehicle for transporting in the crossheading roadway of underground coal mine, mainly used in the crossheading roadway of underground coal mine mining face and belt fully mechanized mining equipment, to transport personnel, gangue, materials and equipment.
[0003] The crossheading car is combined by multiple components, including the rear frame, the rear frame and the car body of the crossheading car are connected rigidly, lacking effective buffer, when encountering bumpy road section, long time direct jolt can easily cause the fracture of the connection. Therefore, in order to solve such problems, we propose a rear frame for crossheading car. UTILITY MODEL CONTENT
[0004] The utility model aims at solving the shortcomings in the prior art and provides a rear frame for crossheading car.
[0005] In order to achieve the above object, the utility model adopts the following technical scheme:
[0006] A rear frame for crossheading car, including frame, the both ends of the inner wall of frame are provided with placing grooves, the inside of placing groove is connected with several connecting plates, the four corners of the top of frame are all installed with buffer components, buffer components include triangular plate, the bottom of triangular plate is connected with the top of frame, two buffer grooves are set up on triangular plate, the inner wall of buffer groove is connected with lifting rod, the outside of lifting rod is sequentially sleeved with buffer spring, lifting block and damping sleeve from top to bottom, the side close to two lifting blocks is commonly connected with pressing block, the top of pressing block is provided with connecting screw hole, the bottom of lifting block is provided with buffer air bag, the bottom of buffer air bag is connected with the top of frame, the top of triangular plate is placed with stop block.
[0007] Preferably, the inner wall of the frame is transversely connected with several support beams, the top of the support beam is connected with the bottom of the connecting plate, there is a gap between the several support beams, and there is also a gap between the several connecting plates.
[0008] Preferably, the four corners of the bottom of the frame are connected with the stand column, the four stand columns are connected with the positioning plate, the four corners of the bottom of the frame are connected with the reinforcing plate, and the side away from the frame of the reinforcing plate is connected with the stand column.
[0009] Preferably, the top of the buffer spring is connected with the top of the inner wall of the buffer groove, the bottom of the buffer spring is connected with the top of the lifting block, and the top of the damping sleeve is connected with the bottom of the lifting block.
[0010] Preferably, the top of the block and the top of the triangular plate are provided with mounting screw holes, and the top of the block is provided with a through hole.
[0011] Preferably, the bottom of the block is connected with two electric hydraulic cylinders, and the telescopic end of the electric hydraulic cylinder is connected with a pressure plate, and the pressure plate is located on the top of the lifting block.
[0012] Compared with the prior art, the utility model has the beneficial effects as follows:
[0013] The utility model discloses a buffering component, buffering air bag and buffering spring can be used to buffer the placing crossheading car carriage, damping sleeve is lifted outside the lifting rod, and the buffering force is counteracted, when the height of the pressing block needs to be reduced, the telescopic end of the electric hydraulic cylinder is stretched out, the pressure plate is used to press down the lifting block, thereby driving the pressing block to move down. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is the structural schematic diagram of the utility model;
[0015] Figure 2 It is the plan view of the utility model; Figure 1
[0016] Figure 3 It is the structural schematic diagram of the buffering component of the utility model;
[0017] Figure 4 It is the left view of the utility model. Figure 3
[0018] In the drawing: 1, frame;2, connecting plate;3, positioning plate;4, reinforcing plate;5, stand;6, buffering component;61, triangular plate;62, lifting block;63, pressure plate;64, through hole;65, mounting screw hole;66, electric hydraulic cylinder;67, connecting screw hole;68, buffering groove;69, pressing block;610, buffering air bag;611, buffering spring;612, lifting rod;613, damping sleeve;614, block;7, placing groove;8, support beam. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model.
[0020] Please refer to Figures 1-4 The utility model provides a rear frame for crossheading car, including frame 1, and the both ends of the inner wall of frame 1 are provided with placing groove 7, and the inside of placing groove 7 is connected with a plurality of connecting plates 2, and the four corners of the top of frame 1 are all installed with buffer component 6, and buffer component 6 includes triangular plate 61, and the bottom of triangular plate 61 is connected with the top of frame 1, and two buffer grooves 68 are set up on triangular plate 61, and the inner wall of buffer groove 68 is connected with lifting rod 612, and the outside of lifting rod 612 is sequentially sleeved with buffer spring 611, lifting block 62 and damping sleeve 613 from top to bottom, and the side of two lifting blocks 62 close to each other is connected with pressing block 69 in common, and the top of pressing block 69 is provided with connecting screw hole 67, and the bottom of lifting block 62 is provided with buffer air bag 610, and the bottom of buffer air bag 610 is connected with the top of frame 1, and the top of triangular plate 61 places stopper 614.
[0021] As a kind of technical optimization scheme of the utility model, the inner wall of frame 1 is connected with a plurality of support beams 8 transversely, the top of support beam 8 is connected with the bottom of connecting plate 2, interval gap is left between a plurality of support beams 8, and interval gap is also left between a plurality of connecting plates 2;By support beam 8, connecting plate 2 can be supported, and the strength of connecting plate 2 is improved.
[0022] As a kind of technical optimization scheme of the utility model, the four corners of the bottom of frame 1 are connected with stand 5, positioning plate 3 is connected between four stands 5, the four corners of the bottom of frame 1 are connected with reinforcing plate 4, and the side, away from frame 1, of reinforcing plate 4 is connected with stand 5;By positioning plate 3, four stands 5 can be connected, and the stability of stand 5 is improved.
[0023] As a kind of technical optimization scheme of the utility model, the top of buffer spring 611 is connected with the top of the inner wall of buffer groove 68, the bottom of buffer spring 611 is connected with the top of lifting block 62, and the top of damping sleeve 613 is connected with the bottom of lifting block 62.
[0024] As a kind of technical optimization scheme of the utility model, mounting screw hole 65 is set up on the top of stopper 614 and the top of triangular plate 61, and through hole 64 is formed through the top of stopper 614;Through mounting screw hole 65, stopper 614 can be conveniently installed on the top of triangular plate 61 by using bolt.
[0025] As a kind of technical optimization scheme of the utility model, two electric hydraulic cylinders 66 are connected with the bottom of stopper 614, the telescopic end of electric hydraulic cylinder 66 is connected with pressing disc 63, and pressing disc 63 is located on the top of lifting block 62;By the extension of electric hydraulic cylinder 66, pressing disc 63 is driven to descend, and lifting block 62 can be pressed down by using pressing disc 63.
[0026] The utility model discloses a positioning installation of the car compartment of the crossheading car is realized, and the car compartment of the crossheading car is placed in the four pressure blocks 69 top respectively in the use, utilizes the bolt to pass through the installation screw hole 65 to install the baffle block 614 positioning in the top of the triangular plate 61, utilizes the bolt to pass through the through -hole 64 again, and the car compartment of the crossheading car finally rotates and enters the inside of the connecting screw hole 67, completes the positioning installation of the car compartment of the crossheading car. The car compartment of the crossheading car is placed and is buffered by buffer air bag 610 and buffer spring 611, and damping sleeve 613 is lifted outside the lift rod 612, and the buffering force is counteracted, when the height of pressure block 69 needs to be reduced, the telescopic end of electric hydraulic cylinder 66 is stretched out, and lift block 62 is pressed down by using pressure plate 63, thereby driving pressure block 69 to move down, finally reach the purpose.
[0027] The above is only the preferred specific implementation mode of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art in the technical range disclosed by the utility model, according to the technical scheme and the utility model concept of the utility model, is equivalent to replace or change, should be covered in the protection scope of the utility model.
Claims
1. A rear frame for a gate car, comprising a frame (1), characterized in that: Both ends of the inner wall of the frame (1) are provided with a placing groove (7), the inside of the placing groove (7) is connected with a plurality of connecting plates (2), the four corners of the top of the frame (1) are provided with buffer components (6), the buffer component (6) comprises a triangular plate (61), the bottom of the triangular plate (61) is connected with the top of the frame (1), two buffer grooves (68) are formed in the triangular plate (61), the inner wall of the buffer groove (68) is connected with a lifting rod (612), the outside of the lifting rod (612) is sequentially sleeved with a buffer spring (611), a lifting block (62) and a damping sleeve (613) from top to bottom, the side close to each other of the two lifting blocks (62) is connected with a pressing block (69) together, the top of the pressing block (69) is provided with a connecting screw hole (67), the bottom of the lifting block (62) is provided with a buffer air bag (610), the bottom of the buffer air bag (610) is connected with the top of the frame (1), the top of the triangular plate (61) is placed with a stop block (614).
2. The rear frame for a belt conveyor as claimed in claim 1, wherein: The inner wall of the frame (1) is transversely connected with a plurality of supporting beams (8), the top of the supporting beam (8) is connected with the bottom of the connecting plate (2), there are interval gaps between the plurality of supporting beams (8), and there are also interval gaps between the plurality of connecting plates (2).
3. The rear frame for a belt conveyor as claimed in claim 1, wherein: The bottom of the frame (1) is connected with a stand column (5) at four corners, the four stand columns (5) are connected with a positioning plate (3), the bottom of the frame (1) is connected with a reinforcing plate (4) at four corners, and the side, away from the frame (1), of the reinforcing plate (4) is connected with the stand column (5).
4. The rear frame for a belt conveyor as claimed in claim 1, wherein: The top of the buffer spring (611) is connected with the top of the inner wall of the buffer groove (68), the bottom of the buffer spring (611) is connected with the top of the lifting block (62), and the top of the damping sleeve (613) is connected with the bottom of the lifting block (62).
5. The rear frame for a belt conveyor as claimed in claim 1, wherein: The top of the stop block (614) and the top of the triangular plate (61) are both provided with a mounting screw hole (65), and the top of the stop block (614) is provided with a through hole (64).
6. The rear frame for a belt conveyor as claimed in claim 1, wherein: The bottom of the stop block (614) is connected with two electric hydraulic cylinders (66), the telescopic end of the electric hydraulic cylinder (66) is connected with a pressing disc (63), and the pressing disc (63) is located at the top of the lifting block (62).