Transferring traction trolley for passenger car chassis assembly

Abstract

The utility model discloses a trailer wagon for transferring a passenger car chassis assembly, which relates to the field of passenger car production, and comprises two bearing cross beams which are arranged at the bottom of the trailer wagon in parallel, and two connecting beams are symmetrically connected between the two bearing cross beams to form a trailer wagon frame; the moving wheel components are correspondingly mounted below the end parts of the bearing cross beams; the handrail assembly is fixedly connected to one bearing cross beam and used for driving the trolley to move; and the positioning block is arranged on the trolley frame and is used for positioning and mounting the passenger car chassis assembly. Compared with the prior art that the frame transfer depends on a crane and a forklift to transfer in the air, the frame transfer trolley has the advantages that the frame transfer is improved to transfer on the ground by means of the traction trolley, the operation difficulty is reduced, the working efficiency is improved, the safety coefficient is increased, and the chassis without the front and rear axle assemblies can be safely and quickly transferred to the next process.

Description

Technical Field

[0001] The utility model relates to the field of bus production, and particularly relates to a transfer and traction trolley for a bus chassis assembly. Background Art

[0002] At present, the order delivery cycle in the bus industry is about one and a half months. From the procurement cycle to the production cycle, the time is very short. To complete the delivery, the chassis assembly often needs to be transferred offline before the front and rear axles are installed. In the prior art, the chassis assembly is transferred horizontally across workshops. Therefore, a forklift is used in front of the chassis assembly to lift the chassis to a height of about 300 mm above the ground, and a gantry crane is used behind the chassis assembly to lift the rear part of the chassis assembly. The two devices need to operate simultaneously to carry the chassis assembly forward.

[0003] Since the two devices operate simultaneously in the existing solution, the requirements for operators are extremely high; it involves cross-shop transfer, but the gantry crane can only operate in one workshop area. Therefore, when the half of the chassis enters another workshop, the forklift needs to drive to the rear of the chassis, lift the chassis, and then the gantry crane in another workshop lifts the front part of the chassis, so that the chassis can continue to be transferred. However, this method is not conducive to safe production and the efficiency is also relatively low. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies existing in the prior art, and provide a transfer and traction trolley for a bus chassis assembly, so that the chassis without the front and rear axle assemblies installed can be safely and quickly transferred to the next process.

[0005] The purpose of the utility model is completed through the following technical solutions: This transfer and traction trolley for a bus chassis assembly includes:

[0006] Two load-bearing crossbeams are arranged in parallel at the bottom of the trolley, and two connecting beams are symmetrically connected between the two load-bearing crossbeams to form a trolley frame;

[0007] A mobile wheel assembly is correspondingly installed below the end of each load-bearing crossbeam;

[0008] An armrest assembly is fixedly connected to one load-bearing crossbeam for driving the trolley to move; and

[0009] A positioning block is arranged on the trolley frame for positioning and installing the bus chassis assembly.

[0010] As a further technical solution, an installation sleeve is welded and fixed on one of the load-bearing crossbeams for installing the armrest assembly.

[0011] As a further technical solution, after the armrest assembly is sleeved into the installation sleeve, the two are threadedly connected and fixed. Reinforcing plates are arranged on both sides of the installation sleeve, and the reinforcing plates are welded and fixed to the load-bearing crossbeam.

[0012] As a further technical solution, convex platforms are provided on both sides of the positioning block for fixedly installing the limit assembly. A U-shaped groove is formed in the limit assembly and is used for positioning in cooperation with the positioning steel frame on the bus chassis assembly.

[0013] As a further technical solution, the moving wheel assembly includes two universal wheel assemblies and two directional wheel assemblies. The universal wheel assemblies are installed at both ends of the load-bearing cross beam facing the armrest assembly, and the directional wheel assemblies are installed at both ends of the load-bearing cross beam away from the armrest assembly.

[0014] As a further technical solution, fixed track guide wheels are provided on both sides of the positioning block, so that the trolley slides along the fixed track in the workshop. A fixed track traction pin is provided on one side of the positioning block facing the armrest assembly for connection with the ground drag chain during fixed track traction.

[0015] The beneficial effects of the present utility model are as follows:

[0016] 1. Compared with the prior art in which the frame transfer depends on cranes and forklifts for aerial transfer, it is improved to use a traction trolley for ground transfer, reducing the operation difficulty, improving the work efficiency, and increasing the safety factor;

[0017] 2. The traction trolley has a simple design, the manufacturing materials are easy to obtain, the manufacturing cost is low, the mechanical structure has high reliability, and it is not prone to failure;

[0018] 3. The traction trolley is simple and safe to operate, and employees can operate it after simple training;

[0019] 4. The traction trolley has strong adaptability and can cover the frame transfer of products in the series from six meters to twelve meters. It can move flexibly in the workshop with the help of the moving wheel assembly, and the transfer is convenient and fast. Description of the Drawings

[0020] Figure 1 It is a schematic structural diagram of the present utility model.

[0021] Figure 2 It is a front view structural schematic diagram of the present utility model.

[0022] Figure 3 It is a left view structural schematic diagram of the present utility model.

[0023] Figure 4 It is a top view structural schematic diagram of the present utility model.

[0024] Figure 5 It is a schematic structural diagram of the present utility model after hiding the positioning block.

[0025] Figure 6 It is a schematic structural diagram of the present utility model after being assembled with the bus chassis assembly.

[0026] Figure 7 is Figure 6 a partial enlarged schematic view of area A in

[0027] Description of reference numerals: armrest assembly 1, mounting sleeve 2, reinforcing plate 3, limit assembly 4, universal wheel assembly 5, fixed track traction pin 6, connecting beam 7, directional wheel assembly 8, load-bearing cross beam 9, positioning block 10, boss 11, U-shaped groove 12, fixed track guide wheel 13, bus chassis assembly 14, positioning steel frame 15. Specific embodiments

[0028] The following will introduce the present utility model in detail with reference to the accompanying drawings:

[0029] Embodiment: As shown in the Figures 1 to 7 accompanying drawings, this transfer traction trolley for a bus chassis assembly includes an armrest assembly 1, a mounting sleeve 2, a reinforcing plate 3, a limit assembly 4, a universal wheel assembly 5, a fixed track traction pin 6, a connecting beam 7, a directional wheel assembly 8, a load-bearing cross beam 9, a positioning block 10, a boss 11, a U-shaped groove 12, a fixed track guide wheel 13, a bus chassis assembly 14, and a positioning steel frame 15.

[0030] Refer to the Figure 5 accompanying drawings. Two load-bearing cross beams 9 are arranged at intervals and in parallel at the bottom of the trolley. Two connecting beams 7 are symmetrically welded and fixed between the two load-bearing cross beams 9 to form a trolley frame. A mounting sleeve 2 is welded and fixed on one of the load-bearing cross beams 9. After the armrest assembly 1 is sleeved into the mounting sleeve 2, the two are fixed by threaded connection. Reinforcing plates 3 are provided on both sides of the mounting sleeve 2, and the reinforcing plates 3 are welded and fixed to the load-bearing cross beam 9.

[0031] Furthermore, a moving wheel assembly is correspondingly installed below the end of each load-bearing cross beam 9. The moving wheel assembly includes two universal wheel assemblies 5 and two directional wheel assemblies 8. The universal wheel assemblies 5 are installed at both ends of the load-bearing cross beam 9 facing the armrest assembly 1, and the directional wheel assemblies 8 are installed at both ends of the load-bearing cross beam 9 away from the armrest assembly 1. When the armrest assembly 1 is pushed, the trolley can be driven to move.

[0032] As shown in Figure 1 , 2 , and 3, the positioning block 10 is welded and fixed on the trolley frame. Bosses 11 are provided on both sides of the positioning block 10, and a limit assembly 4 is fixedly installed on the bosses 11 by threaded connection. As shown in Figure 2 , a U-shaped groove 12 is opened at the middle position of the limit assembly 4. The U-shaped groove 12 (positioning block 10) can cooperate with the positioning steel frame 15 on the bus chassis assembly 14 for positioning, as shown in Figure 6 , 7 .

[0033] Furthermore, refer to the Figure 1, 2 On both sides of the positioning block 10, two fixed rail guide wheels 13 are provided. The fixed rail guide wheels 13 are matched with the fixed rails provided in the workshop, so that the trolley slides along the fixed rails in the workshop. On the side of the positioning block 10 facing the handrail assembly 1, a fixed rail traction pin 6 is provided for connecting with the ground drag chain during fixed rail traction.

[0034] The working process of the present utility model:

[0035] 1. A U-shaped limit assembly 4 is added to the upper part of the tooling trolley by welding. A load-bearing cross beam 9 is welded to the bottom of the tooling trolley respectively. Two longitudinal connecting beams 7 are welded between the two load-bearing cross beams 9. Two 8-inch polyurethane heavy-duty universal wheel assemblies 5 are installed under the lower part of the load-bearing cross beam 9 with pre-drilled holes in the front. Two 8-inch polyurethane heavy-duty directional wheel assemblies 8 are installed under the lower part of the load-bearing cross beam 9 with pre-drilled holes in the rear. The fixed rail traction pin 6 is used to connect with the ground drag chain during fixed rail traction, and the fixed rail guide wheel 13 can slide on the fixed rails in the workshop to guide the trolley. A mounting sleeve 2 is welded and installed at the center position of one of the load-bearing cross beams 9. A hole is drilled in the upper part of the mounting sleeve 2 and a nut is welded. The handrail assembly 1 is inserted into the mounting sleeve 2 and tightened with bolts.

[0036] 2. The bus chassis assembly 14 without the front and rear axles installed is lifted by a crane to a height of about one meter above the ground. The two assembled traction trolleys are respectively pushed into the front lower part and the rear lower part of the bus chassis assembly 14. The front cross beam and the rear cross beam (positioning steel frame 15) of the bus chassis assembly 14 are respectively placed in the limit assembly 4 of the traction trolley. Make the frame firmly fixed. Then one person pulls in the front and one person pushes in the rear, and the chassis can be easily and quickly transferred to the designated position.

[0037] The present utility model well solves the purpose of safely and timely transferring the chassis without the axle assembly installed to the next production process. Through batch production verification, each single transfer can save 10 minutes compared with the existing technical solution.

[0038] It can be understood that for those skilled in the art, any equivalent replacement or change to the technical solution and the inventive concept of the present utility model should fall within the protection scope of the appended claims of the present utility model.

Claims

1. A tractor for transferring a passenger car underframe assembly, characterized in that: include: Two load-bearing cross beams (9) are arranged in parallel at the bottom of the trolley, and two connecting beams (7) are symmetrically connected between the two load-bearing cross beams (9) to form a trolley frame; A moving wheel assembly is installed below the end of each load-bearing beam (9); A handrail assembly (1) is fixedly connected to a load-bearing beam (9) and is used to drive the trolley to move; and A positioning block (10) is arranged on the trolley frame and is used for positioning and installing the passenger car underframe assembly (14); Bosses (11) are provided on both sides of the positioning block (10) for fixing and installing the limit assembly (4). The limit assembly (4) is provided with a U-shaped groove (12) and cooperates with the positioning steel frame (15) on the passenger car chassis assembly (14) for positioning.

2. The bus underframe assembly transfer tractor according to claim 1, characterized in that: A mounting sleeve (2) is welded and fixed on one of the load-bearing crossbeams (9) and is used to mount the handrail assembly (1).

3. The bus underframe assembly transfer tractor according to claim 2, characterized in that: After the handrail assembly (1) is inserted into the mounting sleeve (2), the two are threadedly connected and fixed. Reinforcement plates (3) are provided on both sides of the mounting sleeve (2), and the reinforcement plates (3) are welded and fixed to the load-bearing crossbeam (9).

4. The bus underframe assembly transfer tractor according to claim 1, characterized in that: The movable wheel assembly comprises two universal wheel assemblies (5) and two fixed wheel assemblies (8), wherein the universal wheel assemblies (5) are mounted at both ends of a load-bearing beam (9) facing the handrail assembly (1), and the fixed wheel assemblies (8) are mounted at both ends of the load-bearing beam (9) away from the handrail assembly (1).

5. The bus underframe assembly transfer tractor according to claim 1, characterized in that: Fixed track guide wheels (13) are arranged on both sides of the positioning block (10) to enable the trolley to slide along the fixed track of the workshop. A fixed track traction pin (6) is arranged on the side of the positioning block (10) facing the handrail assembly (1) to be connected with the ground drag chain during fixed track traction.

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