Lifting supporting device for assembling special-shaped access cover

Abstract

The lifting supporting device for assembling the special-shaped access cover comprises a mounting base, lifting supporting mechanisms are arranged on the mounting base, the two sides of the mounting base are each provided with one lifting supporting mechanism, each lifting supporting mechanism comprises a supporting rod, each supporting rod is of a hollow structure, and a bearing is arranged at the upper end of each supporting rod; the bearing is fixed through a bearing upper seat and a bearing lower seat, adjusting handles are arranged on the two sides of the bearing upper seat, a lifting screw is arranged in the supporting rod, the lifting screw penetrates through the bearing and the bearing upper seat and then is in threaded connection with the inner wall of the supporting rod, supporting plates are arranged at the top end of the lifting screw, and the two supporting plates are arranged in a V shape. The included angle between the two supporting plates is alpha. The lifting supporting device can meet the requirement for supporting parts when the special vehicle is overhauled, and potential safety hazards of maintainers are eliminated.

Description

Technical Field

[0001] This utility model relates to the field of special vehicle maintenance technology, specifically to a lifting support device for assembling irregularly shaped maintenance covers. Background Technology

[0002] This type of lightning protection special vehicle is the first product developed in my country using advanced foreign mine protection technology. It adopts a load-bearing V-shaped lightning protection vehicle body structure, comprehensively considering factors such as overall vehicle lightning protection performance, mobility, vehicle maintainability, interior space layout, ergonomics, and vehicle accessories to establish a complete vehicle protection system. Its comprehensive performance parameters are at an internationally leading level and domestically advanced, achieving several firsts in domestic lightning protection testing. Currently, through the adoption of a modular design approach and the addition of different protection modules tailored to user needs, this model has evolved into a series of vehicles and is widely deployed, having undergone numerous real-world tests and achieved significant economic benefits and social impact.

[0003] To facilitate vehicle chassis maintenance and meet overall lightning protection requirements, a series of maintenance holes are designed on the V-shaped floor of the vehicle body. The maintenance hole for the engine clutch adopts a special-shaped structure design (Z-shaped, large V-angle) with thick lightning protection material and a smooth surface treatment. The mounting position of this maintenance cover is located above the connection between the front axle transfer case and the drive shaft. During assembly and maintenance, difficulties often arise due to the narrow installation space (the height clearance is only 24cm, and the mounting position under the vehicle is 87cm from the ground), the heavy weight of the assembled parts (weighing up to 55.7Kg), and the smooth surface. This results in difficulties in lifting and assembling the maintenance cover, which requires one person to lift it and two people to lift it. The operator must squat down and manually lift the maintenance cover, which leads to difficulties in the lifting and assembly operation and safety hazards under long-term manual lifting and support assembly. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a lifting support device for assembling irregularly shaped inspection covers. This lifting support device can solve the problem of supporting parts during the maintenance of special vehicles and eliminate safety hazards for maintenance personnel.

[0005] The purpose of this utility model is achieved by the following solution: a lifting support device for assembling irregularly shaped inspection covers, comprising a mounting base, a lifting support mechanism on the mounting base, and a lifting support mechanism on each side of the mounting base. Each lifting support mechanism includes a support rod, which is a hollow structure. A bearing is provided at the upper end of the support rod, and the bearing is fixed to a bearing seat via an upper bearing seat and a lower bearing seat. Adjustment handles are provided on both sides of the upper bearing seat. A lifting screw is provided inside the support rod, and the lifting screw passes through the bearing and the upper bearing seat and is threaded to the inner wall of the support rod. A support plate is provided at the top of the lifting screw, and the two support plates are V-shaped with an included angle α between them.

[0006] The mounting base is a rectangular mounting base, with casters at the four bottom corners and brakes on the casters.

[0007] The included angle α between the support plates is 140°.

[0008] The lifting support mechanism on the left side of the mounting base is located at the front left side of the mounting base, and the lifting support mechanism on the right side is located at the rear right side of the mounting base.

[0009] The upper bearing seat and the lower bearing seat are connected and fixed by fastening bolts.

[0010] The adjusting handle is threadedly connected to the bearing seat.

[0011] The bearing is installed in the bearing mounting seat, and the lower end of the bearing mounting seat is welded and fixed to the inner support rod. The inner support rod is located inside the support rod, and the lifting screw is threadedly connected to the inner support rod.

[0012] The advantage of this utility model is that it has been well applied to the lifting and assembly of the irregularly shaped inspection cover at the bottom of a certain type of special vehicle. It solves the problem of the difficulty in lifting and assembling the cover due to the narrow installation space, the heavy weight of the assembly parts, and the smooth surface of the parts, which makes it difficult for one person to lift and two people to lift it. It also eliminates the safety hazards caused by long-term manual lifting and support during the assembly operation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a top view of the present invention;

[0015] Figure 3 This is a schematic diagram of the lifting support mechanism. Detailed Implementation

[0016] like Figures 1 to 3As shown, a lifting support device for assembling irregularly shaped inspection covers includes a mounting base 1, which is a rectangular mounting base. Universal wheels 9 are installed at the four corners of the mounting base 1, and brakes are installed on the universal wheels 9. A lifting support mechanism a is installed on the mounting base 1, with one lifting support mechanism a on each side of the mounting base 1. The left lifting support mechanism a is located at the left front end of the mounting base 1, and the right lifting support mechanism a is located at the right rear end of the mounting base 1. Each lifting support mechanism a includes a support rod 2, which is a hollow structure. A bearing 3 is installed at the upper end of the support rod 2. The bearing 3 is fixed to a bearing upper seat 4 and a bearing lower seat 5, which are connected and fixed by fastening bolts 10. Adjusting handles 8 are installed on both sides of the bearing upper seat 4, and the adjusting handles 8 are threadedly connected to the bearing upper seat 4. A lifting screw 6 is installed inside the support rod 2. The lifting screw 6 passes through the bearing 3 and the bearing seat 4 and is threaded to the inner wall of the support rod 2. A support plate 7 is installed at the top of the lifting screw 6. The two support plates 7 are V-shaped and the included angle between the two support plates 7 is 140°. The bearing 3 is installed in the bearing mounting seat 3a, which supports, fixes and limits the bearing 3. The lower end of the bearing mounting seat 3a is welded and fixed to the inner support rod 2a. The inner support rod 2a is located inside the support rod 2, and the lifting screw 6 is threaded to the inner support rod 2a.

[0017] 1. Procedures for assembling irregularly shaped inspection covers

[0018] 1) Install a tooling handle at each of the three bolt holes on the Z-shaped edge of the irregular inspection cover, and then two people lift the irregular inspection cover to the inspection hole at the bottom of the vehicle body to be installed.

[0019] 2) Activate the brakes on the casters of the base trolley and push the trolley to the bottom of the vehicle body to be assembled.

[0020] 3) Operate the adjusting handles of the left and right lifting support mechanisms respectively. The bearing seat rotates 360° to drive the lifting screws of the left and right support plates to rise (the trapezoidal thread and the thrust roller bearing work together) until the height of the left and right support plates exceeds the height of the transmission shaft and the left and right heights are basically the same.

[0021] 4) Manually lift the irregularly shaped inspection cover again and place it on the left and right support plates.

[0022] 5) Check and adjust the support position for correctness: Visually check whether the support position is in the middle of the inspection cover support area. If not, move the base trolley forward, backward, left, and right until the requirement is met, and finally lock the brakes on the casters.

[0023] 6) Check and adjust the fit of the support parts: Visually check whether the support plate and the inspection cover are completely fitted. If the left side is not fitted, operate the adjustment handle of the left lifting support mechanism to raise or lower the lifting screw until the left support plate and the inspection cover are completely fitted; otherwise, perform the same operation; ultimately ensure that the two support plates achieve reliable overall V-shaped support.

[0024] 7) Remove the two tool handles installed on the irregularly shaped inspection cover.

[0025] 8) Assemble the irregularly shaped inspection cover on the vehicle: Operate the adjusting handles of the left and right lifting support mechanisms with both hands at the same time to make the left and right support plates rise synchronously until the inspection cover fits and is pressed tightly against the inspection hole; after completion, install the connecting bolts of the inspection cover and ensure that the bolts are tightened in place.

[0026] 9) Operate the adjusting handles of the left and right lifting support mechanisms to lower the left and right support plates until they are below the position of the drive shaft.

[0027] 10) Release the brakes on the casters and push the base trolley away from the bottom of the vehicle body.

[0028] 2. Operating procedures for repairing irregularly shaped inspection covers

[0029] 1) Open the brakes on the casters of the base trolley and push the trolley to the installation position of the irregularly shaped inspection cover at the bottom of the vehicle body.

[0030] 2) Operate the adjustment handles of the left and right lifting support mechanisms respectively. The bearing seat rotates 360° to drive the lifting screws of the left and right support plates to rise until the support plates are completely in contact with the inspection cover. Then lock the brake of the caster wheel.

[0031] 3) Remove the mounting bolts of the irregular-shaped inspection cover.

[0032] 4) Operate the adjusting handles of the left and right lifting support mechanisms to lower the left and right support plates until the height of the left and right support plates is the same as the height of the transmission shaft.

[0033] 5) Install a tooling handle at each of the three bolt holes on the Z-shaped edge of the irregularly shaped inspection cover, and then two people lift the irregularly shaped inspection cover out of the vehicle.

[0034] 6) Release the brakes on the casters of the base trolley and push the base trolley away from the bottom of the vehicle body.

[0035] 7) After the repair is completed, reinstall the irregular-shaped inspection cover and follow the procedure in step 1.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications made to the present utility model by those skilled in the art without departing from the spirit of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A lifting support device for assembling irregularly shaped inspection covers, comprising a mounting base (1), wherein a lifting support mechanism (a) is provided on the mounting base (1), characterized in that: A lifting support mechanism (a) is provided on each side of the mounting base (1). The lifting support mechanism (a) includes a support rod (2). The support rod (2) is a hollow structure. A bearing (3) is provided at the upper end of the support rod (2). The bearing (3) is fixed to the bearing lower seat (5) through the bearing upper seat (4). Adjustment handles (8) are provided on both sides of the bearing upper seat (4). A lifting screw (6) is provided inside the support rod (2). The lifting screw (6) passes through the bearing (3) and the bearing upper seat (4) and is threaded to the inner wall of the support rod (2). A support plate (7) is provided at the top of the lifting screw (6). The two support plates (7) are V-shaped and the included angle between the two support plates (7) is α.

2. The lifting support device for assembling irregularly shaped inspection covers according to claim 1, characterized in that: The mounting base (1) is a rectangular mounting base, and universal wheels (9) are provided at the bottom of the four corners of the mounting base (1), with brakes provided on the universal wheels (9).

3. The lifting support device for assembling irregularly shaped inspection covers according to claim 1, characterized in that: The included angle α between the support plates (7) is 140°.

4. The lifting support device for assembling irregularly shaped inspection covers according to claim 1, characterized in that: The lifting support mechanism (a) on the left side of the mounting base (1) is located at the front left side of the mounting base (1), and the lifting support mechanism (a) on the right side is located at the rear right side of the mounting base (1).

5. The lifting support device for assembling irregularly shaped inspection covers according to claim 1, characterized in that: The upper bearing seat (4) and the lower bearing seat (5) are connected and fixed by fastening bolts (10).

6. The lifting support device for assembling irregularly shaped inspection covers according to claim 1, characterized in that: The adjusting handle (8) is threadedly connected to the bearing seat (4).

7. The lifting support device for assembling irregularly shaped inspection covers according to claim 1, characterized in that: The bearing (3) is set in the bearing mounting seat (3a), the lower end of the bearing mounting seat (3a) is welded and fixed to the inner support rod (2a), the inner support rod (2a) is set inside the support rod (2), and the lifting screw (6) is threadedly connected to the inner support rod (2a).

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