Assembling and positioning tool for prying trolley cab
By designing a jig for assembling and positioning the cab of the scaffolding trolley, and using the base plate and bracket to simulate the installation dimensions of the chassis, the problem of large assembly errors and long assembly time of the cab of the scaffolding trolley was solved, and efficient and low-cost assembly and transportation were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINCHUAN GRP MACHINERY MFG
- Filing Date
- 2025-05-28
- Publication Date
- 2026-05-26
AI Technical Summary
The front pillar, support armrest, and rear pillar of the trolley cab are not on the same plane, which makes assembly difficult, results in large positioning errors, and is time-consuming and costly.
Design a jig for assembling and positioning the cab of a prying trolley, including a base plate, a lower bracket and an upper bracket, to simulate the installation dimensions of the vehicle frame. The front column, support handrail and rear column are positioned by screw holes to simplify the assembly process.
It improves assembly accuracy and efficiency, reduces labor costs, achieves a 100% product qualification rate, and facilitates long-distance transportation and monitoring of assembly quality.
Smart Images

Figure CN224274849U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mining underground equipment technology, specifically to a tooling for assembling and positioning the cab of a skid trolley. Background Technology
[0002] The prying trolley is a specialized piece of equipment for cleaning pumice and rubble. It features a liftable roof cab, which allows the operator to adjust their field of vision according to the actual working conditions. The main structure of the cab consists of a pair of front columns, a pair of support handles, and a pair of rear columns, and the front columns, support handles, and rear columns are not on the same plane.
[0003] In existing technologies, the front and rear pillars of the adjustable-roof cab on the plating trolley are not on the same plane, causing difficulties in transporting the cab. Furthermore, the assembly of the plating trolley involves assembling the cab separately first, then hoisting it onto the trolley frame and securing it. During the cab assembly process, the front, rear, and supporting pillars must be positioned before subsequent assembly and welding can proceed. This positioning is time-consuming, and manual positioning is prone to significant errors, leading to substantial installation errors when installing the cab onto the frame. Therefore, there is a need to develop a cab assembly and welding fixture that can improve work efficiency and reduce installation dimensional errors. Utility Model Content
[0004] To address the problems of large positioning errors and long assembly times for the columns and handrails during the assembly process of the existing prying trolley cab, this utility model proposes an assembly and positioning fixture for the prying trolley cab, the specific solution of which is as follows:
[0005] A jig for assembling and positioning a skid trolley cab includes a base plate, a lower support, and an upper support. The base plate is a square frame composed of mutually perpendicular main plates and cross plates. The lower support includes a lower rear upright beam, two main beams, a middle upright beam, a lower front upright beam, and a cross beam. The lower rear upright beam and the lower front upright beam are fixed to both ends of the lower surface of each main beam, and the middle upright beam is fixed to the middle of the lower surface of each main beam. The two main beams are symmetrically located above the main plate and are welded to the upper surface of the main plate through the lower rear upright beam, the middle beam, and the lower front upright beam. A cross beam is welded between the two main beams, and screw holes are symmetrically arranged on the upper surface of the two main beams. The upper support includes an upper rear upright beam, an inclined beam, two mounting beams, and a cross beam. Each mounting beam is welded to the lower end of one end. There is an upper rear upright beam, and the other end of the side is welded with the inclined beam. Two mounting beams are parallel above the main beam and are connected by welding the upper rear upright beam and the inclined beam. The upper bracket is located at the left end of the lower bracket. The screw holes on the upper surface of the main beam are all located on the right side of the upper bracket. The upper and lower rear upright beams located on the upper and lower sides of the same main beam are paired and aligned in the vertical direction. Handrail mounting seats are symmetrically welded on the inclined outer surfaces of the two inclined beams. Symmetrical screw holes are opened on the platforms of the two handrail mounting seats. A crossbeam is welded between the two mounting beams. Rear column mounting seats are symmetrically arranged on the two mounting beams. Screw holes are opened at three of the four corners of the upper surface of the rear column mounting seats.
[0006] Furthermore, the lower support also includes stiffening plates that connect the side of the lower rear upright beam and the upper surface of the main board, as well as the side of the lower front upright beam and the upper surface of the main board.
[0007] Furthermore, each of the main beams has at least two screw holes on its upper surface.
[0008] Furthermore, the bottom area of the upper support does not exceed one-third of the top area of the lower support.
[0009] Furthermore, the fixing method is welding connection.
[0010] Furthermore, the lower rear beam, upper rear beam, lower front beam, and diagonal beam are all made of channel steel, while the crossbeams, main beams, middle beams, and mounting beams are all made of square steel.
[0011] This utility model's cab assembly and positioning fixture for a prying trolley is an integrated structure that simulates the installation dimensions of a vehicle frame, facilitating the transportation and storage of the cab. Furthermore, during cab assembly, there is no need to separately position the front uprights, support handles, and rear uprights; these components can be directly installed on the cab assembly and positioning fixture. Following this, the remaining accessories are then installed and welded. The entire process can be completed by one person, significantly improving work efficiency, reducing complex labor costs, and achieving a 100% product qualification rate. Using this cab assembly and positioning fixture solves the problems of low assembly accuracy, low assembly efficiency, high cost, and difficult transportation in existing technologies. Attached Figure Description
[0012] The embodiments of this utility model will be further described below with reference to the accompanying drawings, wherein:
[0013] Figure 1 A schematic diagram of the assembly and positioning fixture for the skid trolley cab in the embodiment is shown.
[0014] Figure 2 A schematic diagram of the structure of the prying trolley cab assembly and positioning fixture in use is shown in the embodiment.
[0015] Figure 3 A schematic diagram of the connection between the scaffold cab assembly and positioning fixture and the lifting canopy type cab in the embodiment is shown.
[0016] Among them, 1-crossbeam, 2-upper rear upright beam, 3-lower rear upright beam, 4-main beam, 5-main board, 6-middle upright beam, 7-lower front upright beam, 8-stiffening plate, 9-cross plate, 10-handrail mounting seat, 11-diagonal beam, 12-rear column mounting seat, 13-mounting beam, 14-scraping trolley cab assembly and positioning fixture, 15-cab, 16-rear column, 17-handrail, 18-cab platform, 19-base plate, 20-lower support, 21-upper support. Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.
[0018] In one embodiment, a jig for assembling and positioning the cab of a scraping trolley includes: a base plate, a lower support, and an upper support.
[0019] The base plate 19 is a square frame composed of a main plate 5 and a horizontal plate 9 that are perpendicular to each other. The base plate is used to reduce the damage of the lower support to the ground and to ensure that the lower support is in a horizontal position.
[0020] The lower support 20 includes two lower rear upright beams 3, two main beams 4, two middle upright beams 6, two lower front upright beams 7, multiple crossbeams 1, and stiffening plates 8. One lower rear upright beam 3 and one lower front upright beam 7 are welded to both ends of the lower surface of each main beam 4, and one middle upright beam 6 is welded to the middle of the lower surface of each main beam 4. The two main beams 4 are symmetrically located above the main plate 5 and are connected to the upper surface of the main plate 5 by welding the lower rear upright beams 3, middle upright beams 6, and lower front upright beams 7. Four crossbeams 1 are welded between the two main beams 4, with two crossbeams 1 connecting the two ends of the two main beams 4 respectively. The crossbeams 1 are parallel to each other. The upper surfaces of the two main beams 4 are symmetrically provided with screw holes. Each main beam 4 has two pairs of screw holes on its upper surface, with two screw holes in each pair. The two pairs of screw holes are located on the left and right sides of the center point of the main beam 4. Multiple stiffening plates 8 connect the side of the lower rear upright beam 3 to the upper surface of the main plate 5, as well as the side of the lower front upright beam 7 to the upper surface of the main plate 5. The lower bracket is mainly used for positioning the driver's cab platform 18, specifically through eight screw holes. Figure 1 A schematic diagram is shown of a positioning connection achieved by screwing a screw into a screw hole.
[0021] The upper support 21 includes two upper rear upright beams 2, two inclined beams 11, two mounting beams 13 and a crossbeam 1. Each mounting beam 13 has an upper rear upright beam 2 welded to one end and an inclined beam 11 welded to the other end. The two mounting beams 13 are parallel and located above the main beam 4 of the lower support and are connected to the main beam 4 by welding the upper rear upright beams 2 and the inclined beams 11.
[0022] The upper support 21 is located at the left end of the lower support 20. In this embodiment, the bottom area of the upper support 21 is approximately one-third of the top area of the lower support 20. The screw holes on the upper surface of the main beam 4 are all located on the right side of the upper support. The upper rear beam 2 and the lower rear beam 3 located on the upper and lower sides of the same main beam 4 are paired and aligned vertically. Handrail mounting seats 10 are symmetrically welded on the outer inclined surfaces of the two inclined beams 11. The handrail mounting seats 10 include a horizontal platform. Two screw holes are opened on the platforms of the two handrail mounting seats 10 respectively. The two handrail mounting seats 10 are symmetrical, and the screw holes on them are symmetrically positioned. A crossbeam 1 is welded between the two mounting beams 13. Rear column mounting seats 12 are symmetrically arranged on the two mounting beams 13. The rear column mounting seats 12 are square mounting seats. Screw holes are opened at three of the four corners of the upper surface of the rear column mounting seats 12. The two rear column mounting seats 12 are symmetrical, and the screw holes on them are symmetrically positioned. The upper bracket 21 can fix the relative positions of the handrail mounting seat 10 and the rear pillar mounting seat 12. The handrail mounting seat 10 is used to position the handrail 17 in the cab, and the rear pillar mounting seat 12 is used to position the rear pillar 16 in the cab. Specifically, the positioning is achieved through screw holes. Figure 1 A schematic diagram is shown of a positioning connection achieved by screwing a screw into a screw hole.
[0023] The lower rear upright beam 3, upper rear upright beam 2, lower front upright beam 7, and diagonal beam 11 are all made of channel steel, while the crossbeam 1, main beam 4, middle upright beam 6, and mounting beam 13 are all made of square steel. This structure, as a whole, simulates the actual installation dimensions of the vehicle frame and the cab.
[0024] like Figure 2 As shown, the lower bracket 20 is welded to the base plate 19, and the upper bracket 21 is welded to the lower bracket 20. Two symmetrical rear column mounting seats 12 and two symmetrical handrail mounting seats 10 are welded to the upper bracket 21. Two symmetrical rear columns 16 are mounted on the two symmetrical rear column mounting seats 12, and two symmetrical handrails 17 are mounted on the two symmetrical handrail mounting seats 10. The cab platform 18 is mounted on two symmetrical main beams 4 on the lower bracket 20, all secured by bolt holes. By directly assembling and welding the cab on the cab assembly positioning fixture, the positioning of the cab's front columns, support handrails, and rear columns is eliminated, improving assembly accuracy, saving costs, and increasing product qualification rate.
[0025] like Figure 3 As shown, the cab assembly and positioning fixture 14 of this skid trolley is connected to the liftable roof cab 15 by bolts, simulating the actual installation method of the liftable roof cab 15 and the frame, which facilitates long-distance transportation of the liftable roof cab 15 and facilitates real-time observation of whether the installed liftable roof cab 15 is qualified.
[0026] The foregoing description describes some exemplary embodiments of this utility model. It is understood that the above embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model. The features in these embodiments can be recombine in a suitable manner, and the resulting solutions are still within the scope of protection claimed by this utility model. Based on the above embodiments, all other embodiments obtained by those skilled in the art without inventive effort, that is, all modifications, equivalent substitutions, and improvements made within the spirit and principles of this application, fall within the scope of protection claimed by this utility model.
Claims
1. A tooling for assembling and positioning the cab of a prying trolley, characterized in that, include: The base plate consists of a base plate, a lower support, and an upper support. The base plate is a square frame composed of a main plate (5) and a horizontal plate (9) that are perpendicular to each other. The lower support includes a lower rear upright beam (3), two main beams (4), a middle upright beam (6), a lower front upright beam (7), and a horizontal beam (1). The lower rear upright beam (3) and the lower front upright beam (7) are fixed to the two ends of the lower surface of each main beam (4), and the middle upright beam (6) is fixed to the middle of the lower surface of each main beam (4). The two main beams (4) are symmetrically located above the main plate (5) and are welded to the upper surface of the main plate (5) through the lower rear upright beam (3), the middle upright beam (6), and the lower front upright beam (7). A horizontal beam (1) is welded between the two main beams (4), and screw holes are symmetrically provided on the upper surface of the two main beams (4). The upper support includes an upper rear upright beam (2), a diagonal beam (11), two mounting beams (13), and a horizontal beam (1). Each mounting beam (13) has an upper... The rear upright beam (2) has the inclined beam (11) welded to the other side. Two mounting beams (13) are parallel above the main beam (4) and are welded to the main beam (4) through the upper rear upright beam (2) and the inclined beam (11). The upper bracket is located at the left end of the lower bracket. The screw holes on the upper surface of the main beam (4) are all located on the right side of the upper bracket. The upper rear upright beam (2) and the lower rear upright beam (3) located on the upper and lower sides of the same main beam (4) are aligned in pairs and vertically aligned. Handrail mounting seats (10) are symmetrically welded to the inclined outer surfaces of the two inclined beams (11). Symmetrical screw holes are opened on the platforms of the two handrail mounting seats (10). A crossbeam (1) is welded between the two mounting beams (13). Rear column mounting seats (12) are symmetrically arranged on the two mounting beams (13). Screw holes are opened at three of the four corners of the upper surface of the rear column mounting seat (12).
2. The jig for assembling and positioning the cab of a prying trolley according to claim 1, characterized in that, The lower support also includes stiffening plates (8), which connect the side of the lower rear upright beam (3) and the upper surface of the main board (5), as well as the side of the lower front upright beam (7) and the upper surface of the main board (5).
3. The jig for assembling and positioning the cab of a prying trolley according to claim 1, characterized in that, Each of the main beams (4) has at least two screw holes on its upper surface.
4. The jig for assembling and positioning the cab of a prying trolley according to claim 1, characterized in that, The bottom area of the upper support shall not exceed one-third of the top area of the lower support.
5. The jig for assembling and positioning the cab of a prying trolley according to claim 1, characterized in that, The fixing method is welding connection.
6. The jig for assembling and positioning the cab of a prying trolley according to claim 1, characterized in that, The lower rear beam (3), upper rear beam (2), lower front beam (7) and inclined beam (11) are all channel steel, while the cross beam (1), main beam (4), middle beam (6) and installation beam (13) are all square steel.