Mine car rear axle lifting tool

Abstract

The utility model discloses a mine car rear axle lifting tool which comprises a supporting seat which comprises a supporting frame, a middle beam is installed in the supporting frame, two limiting plates used for limiting and supporting the bottom of a rear axle are installed on the middle beam, a front supporting vertical plate is installed on the front side of the supporting frame, and side supporting vertical plates are installed on the left side and the right side of the supporting frame respectively. The front supporting vertical plate and the side supporting vertical plate are matched to support the front end and the left and right ends of the rear axle; the tool base is located below the supporting seat; the lifting mechanism is installed between the supporting seat and the tool base, the lifting mechanism comprises a turbine lead screw lifter and a rotating disc, and the rotating disc is used for controlling the turbine lead screw lifter to lift the supporting seat; and the shear fork mechanism is installed between the supporting seat and the tool base, the shear fork mechanism comprises two sets of shear fork arms and a connecting rod rotationally connected between the two sets of shear fork arms, and the shear fork mechanism is used for assisting lifting of the supporting seat. According to the utility model, the problem of batch production of 130-tonnage mine cards is solved, the efficiency of the assembly process is improved, and the potential safety hazard is eliminated.

Description

Technical Field

[0001] The utility model relates to a mining car rear axle lifting tool, belonging to the technical field of mining dump truck assembly. Background Art

[0002] During the assembly process of a 130-ton mining dump truck, the heavy weight of the dump truck limited the turning capacity of the dump truck. Especially after a 90-degree turn, the dump truck would lose control and rapidly slide down under its own weight, which was very unsafe. Furthermore, after the turn, the dump truck needed to be hoisted onto the second line, but due to its heavy weight, the workshop crane's lifting capacity limited it, making it impossible to hoist the truck onto the line. Therefore, the existing 130-ton mining dump truck could not be assembled upside down. Summary of the Invention

[0003] In response to the problems existing in the above-mentioned prior art, the utility model provides a mine car rear axle lifting tooling, which is used for the positive assembly of the mine car rear axle, improves the efficiency of the assembly process, eliminates safety hazards, and meets the mass production needs of 130-ton mine cars.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts a mine car rear axle lifting tool, comprising:

[0005] The support seat includes a support frame, a middle beam is installed inside the support frame, and two limit plates are installed on the middle beam for limiting the support of the bottom of the rear axle. The front side of the support frame is installed with a front support vertical plate, and the left and right sides are respectively installed with side support vertical plates. The front support vertical plate and the side support vertical plates cooperate to support the front end and left and right ends of the rear axle;

[0006] The tooling base is located below the support base;

[0007] A lifting mechanism is installed between the support base and the tooling base, and the lifting mechanism includes a worm screw elevator and a turntable, and the turntable is used to control the worm screw elevator to lift the support base;

[0008] The scissor mechanism is installed between the support seat and the tooling base. The scissor mechanism includes two sets of scissor arms and a connecting rod rotatably connected between the two sets of scissor arms. The scissor mechanism is used to assist the lifting and lowering of the support seat.

[0009] In some embodiments, the support frame is formed by welding two support cross beams and two support side beams, and reinforcing ribs are welded inside the support cross beams and / or the support side beams.

[0010] In some embodiments, the limiting plates are in the shape of a right triangle, and two limiting plates are symmetrically arranged on the middle beam.

[0011] In some embodiments, limiting grooves are provided at the top middle positions of the front support vertical plate and the side support vertical plate.

[0012] In some embodiments, the front support uprights are inserted into the support frame, and the side support uprights are welded to the support frame.

[0013] In some embodiments, each set of scissor arms includes a first arm and a second arm that cross each other, the upper end of the first arm is hinged to the support seat, and the lower end is slidably connected to the tooling base, the upper end of the second arm is slidably connected to the support seat, and the lower end is hinged to the tooling base.

[0014] In some embodiments, a fixed sleeve is welded to the same end of the support seat and the tooling base, and the upper end of the first arm and the lower end of the second arm are connected to the fixed sleeve via a pin shaft.

[0015] In some embodiments, the turntable is mounted on the worm screw lifter through grooves and splines.

[0016] In some embodiments, an upper mounting plate is mounted on the support frame of the support seat, a lower mounting plate is mounted on the tooling base, and the turbine screw elevator is mounted between the upper mounting plate and the lower mounting plate.

[0017] In some embodiments, the support frame and the tooling base are both welded using channel steel.

[0018] Compared with the existing technology, the mining car rear axle lifting tooling of the utility model is efficient and practical. The rear axle can be hoisted onto the support seat of the lifting tooling, and the turntable can be manually operated to lift or lower the rear axle through the lifting mechanism. The up and down adjustment is convenient so that the rear axle and the suspension can be installed together, realizing the normal assembly of the rear axle, solving the problem of mass production of 130-ton mining trucks, improving the efficiency of the assembly process, and eliminating safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a structural diagram of the utility model;

[0021] Figure 2 This is a schematic structural diagram of the support base of the utility model;

[0022] Figure 3 This is a structural diagram of the lifting mechanism of the present utility model;

[0023] Figure 4 This is a schematic diagram of the connection structure of the lifting mechanism of the present utility model;

[0024] Figure 5 This is a structural diagram of the tooling base of the utility model;

[0025] Figure 6 This is a schematic structural diagram of the scissor-type mechanism of the present invention;

[0026] Figure 7 This is a schematic diagram of the use structure of the utility model Figure 1 ;

[0027] Figure 8 This is a schematic diagram of the use structure of the utility model Figure 2 ;

[0028] In the figure: 1. Support seat, 11. Front support vertical plate, 12. Middle beam, 13. Support side beam, 14. Upper mounting plate, 15. Side support vertical plate, 16. Support cross beam, 17. Limit plate, 18. Reinforcement rib, 19. Limit groove; 2. Lifting mechanism, 21. Turbine screw lift, 22. Turntable, 23. Keyway structure; 3. Tooling base, 31. Lower mounting plate, 32. Bottom cross beam, 33. Bottom side beam; 4. Scissor mechanism, 41. First arm, 42. Second arm, 43. Connecting rod, 44. Fixed bushing, 45. Sliding bushing; 5. Rear axle, 6. Suspension. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions of the present application are described in detail below with the help of drawings and specific embodiments. It should be understood that the embodiments of the present application and the specific features in the embodiments are detailed descriptions of the technical solutions of the present application, rather than limitations on the technical solutions of the present application. In the absence of conflict, the embodiments of the present application and the technical features in the embodiments can be combined with each other.

[0030] In the description of the present invention, it should be understood that the terms "front", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the protection content of the present invention.

[0031] like Figures 1-6 As shown, a mining car rear axle lifting tool comprises a support base 1, a tool base 3, a lifting mechanism 2 and a scissor mechanism 4;

[0032] The support base 1 includes a support frame, a middle beam 12 is installed inside the support frame, and two limit plates 17 are installed on the middle beam 12 for limiting and supporting the bottom of the rear axle 5. A front support vertical plate 11 is installed on the front side of the support frame, and side support vertical plates 15 are installed on the left and right sides respectively. The front support vertical plate 11 and the side support vertical plates 15 cooperate to support the front end and left and right ends of the rear axle 5;

[0033] The tooling base 3 is located below the support base 1 and serves as the main supporting structure;

[0034] The lifting mechanism 2 is installed between the support base 1 and the tooling base 3. The lifting mechanism 2 includes a turbine screw elevator 21 and a turntable 22. The turntable 22 is used to control the turbine screw elevator 21 to lift the support base 1.

[0035] The scissor mechanism 4 is installed between the support base 1 and the tooling base 3. The scissor mechanism 4 includes two sets of scissor arms and a connecting rod 43 rotatably connected between the two sets of scissor arms. The scissor mechanism 4 is used to assist the lifting of the support base 1.

[0036] In some embodiments, as Figure 2 As shown, the support frame is square and is composed of two support cross beams 16 and two support side beams 13 welded together. Reinforcement ribs 18 are welded inside the support cross beams 16 and / or the support side beams 13 to ensure that the strength of the support frame can effectively bear the weight of the rear axle of the mining dump truck.

[0037] In some embodiments, as Figure 1 、 Figure 2 As shown, the limiting plates 17 are in the shape of a right triangle, and the two limiting plates 17 are symmetrically arranged on the middle beam 12, and the limiting plates 17 are provided with a hypotenuse on one side arranged facing each other, so that the bottom sides of the rear axle 5 can fully contact the limiting plates 17 and be supported and limited by the limiting plates 17.

[0038] In some embodiments, as Figure 1 、 Figure 2 As shown, the front support upright plate 11 and the side support upright plate 15 are provided with a limiting groove 19 at the top middle position. When the front end and the left and right ends of the rear axle 5 are placed on the front support upright plate 11 and the side support upright plate 15 respectively, the limiting groove 19 can play a limiting role to prevent local movement of the rear axle 5.

[0039] In some embodiments, as Figure 1 、 Figure 2As shown, the front support upright plate 11 is inserted into the support frame, which is convenient for the installation of the front support upright plate 11. At the same time, it is convenient to quickly pull out the front support upright plate 11 after the rear axle 5 is installed and the lifting tool is lowered, so that the entire tool can be pulled out from under the axle to complete the transfer sequence; the side support upright plate 15 is welded to the support frame, and the structure is stable and the support stability is good.

[0040] In some embodiments, as Figure 6 As shown, each set of scissor arms includes a first arm 41 and a second arm 42 that are cross-hinged. The upper end of the first arm 41 is hinged to the support base 1 and the lower end is slidably connected to the tooling base 3. The upper end of the second arm 42 is slidably connected to the support base 1 and the lower end is hinged to the tooling base 3. When the lifting mechanism 2 drives the support base 1 to rise or fall, one end of the scissor arm rotates on the support base 1 and the tooling base 3, and the other end slides on the support base 1 and the tooling base 3, allowing the support base 1 to be raised and lowered smoothly relative to the tooling base 3.

[0041] In some embodiments, as Figure 6 As shown, a fixed shaft sleeve 44 is welded to the same end (such as the right end) of the support seat 1 and the tooling base 3, and the upper end of the first arm 41 and the lower end of the second arm 42 are connected to the fixed shaft sleeve 44 through a pin shaft, respectively, to ensure that the upper end of the first arm 41 and the lower end of the second arm 42 can rotate, and the lower end of the first arm 41 and the upper end of the second arm 42 are connected to the sliding shaft sleeve 45 through a pin shaft, respectively. The sliding shaft sleeve 45 is slidably installed on the support seat 1 and the tooling base 3, realizing the lifting function of the scissors mechanism 4.

[0042] In some embodiments, as Figure 3 、 Figure 4 As shown, the turntable 22 is connected to the worm screw elevator 21 through a keyway structure 23. Specifically, the worm screw elevator 21 is provided with an outwardly protruding spline, and the inner side of the turntable 22 is provided with a spline groove that cooperates with the spline, which is convenient to install and use.

[0043] In some embodiments, as Figure 2 、 Figure 5 As shown, an upper mounting plate 14 is installed on the support frame of the support seat 1, a lower mounting plate 31 is installed on the tooling base 3, and the turbine screw elevator 21 is installed between the upper mounting plate 14 and the lower mounting plate 31, so that the structure is more stable.

[0044] In some embodiments, the support frame and the tooling base 3 are both welded with channel steel, which is easy to process and low in cost. In addition, using channel steel as a beam facilitates the welding of the fixed shaft sleeve 44 and the sliding of the sliding shaft sleeve 45.

[0045] In some embodiments, as Figure 5As shown, the tooling base 3 can be formed by welding two bottom cross beams 32 and multiple bottom side beams 33, which is easy to process.

[0046] When using, such as Figure 7 、 Figure 8 As shown, the rear axle 5 is hoisted onto the support seat 1 of the rear axle lifting tooling of the mine car, the turntable 22 is manually operated, and the turbine screw elevator 21 is controlled to drive the support seat 1 to rise. At the same time, the scissor mechanism 4 installed between the support seat 1 and the tooling base 3 is synchronously raised, so that the rear axle 5 on the support seat 1 moves smoothly and can match the suspension 6. Then the rear axle 5 is connected to the suspension 6, and the support seat 1 is driven down by the turbine screw elevator 21. Then the front support vertical plate 11 is removed, and the entire lifting tooling is pulled out from under the axle to complete the transfer sequence; the assembled rear axle 5 and suspension 6 are used as a whole for subsequent assembly.

[0047] The rear axle lifting fixture of the mining truck of the present invention is efficient and practical. The rear axle can be hoisted onto the support seat of the lifting fixture, and the turntable is manually operated to lift or lower the rear axle through the lifting mechanism. The up and down adjustment is convenient so that the rear axle and the suspension can be installed together, realizing the normal assembly of the rear axle, solving the problem of mass production of 130-ton mining trucks, improving the efficiency of the assembly process, and eliminating safety hazards.

[0048] Furthermore, those skilled in the art will appreciate that, although some embodiments described herein include certain features included in other embodiments but not other features, combinations of features from different embodiments are also intended to fall within the scope of protection of the present invention and form different embodiments. For example, in the above embodiments, those skilled in the art will be able to use them in combination based on the known technical solutions and the technical problems to be solved by this application.

Claims

1. A mining car rear axle lifting tool, characterized in that: include: The support seat (1) comprises a support frame, wherein a middle beam (12) is installed inside the support frame, and two limit plates (17) are installed on the middle beam (12) for limiting and supporting the bottom of the rear axle (5); a front support vertical plate (11) is installed on the front side of the support frame, and side support vertical plates (15) are installed on the left and right sides respectively, and the front support vertical plate (11) and the side support vertical plates (15) cooperate to support the front end and left and right ends of the rear axle (5); A tooling base (3) is located below the support base (1); A lifting mechanism (2) is installed between the support base (1) and the tooling base (3), the lifting mechanism (2) comprising a turbine screw elevator (21) and a turntable (22), the turntable (22) being used to control the turbine screw elevator (21) to lift the support base (1); A scissor mechanism (4) is installed between the support seat (1) and the tooling base (3). The scissor mechanism (4) includes two sets of scissor arms and a connecting rod (43) rotatably connected between the two sets of scissor arms. The scissor mechanism (4) is used to assist the lifting and lowering of the support seat (1).

2. A mining car rear axle lifting tool according to claim 1, characterized in that: The support frame is composed of two support cross beams (16) and two support side beams (13) welded together, and reinforcing ribs (18) are welded inside the support cross beams (16) and / or the support side beams (13).

3. The rear axle lifting tool for a mine car according to claim 1, characterized in that: The limiting plates (17) are in the shape of a right triangle, and the two limiting plates (17) are symmetrically arranged on the middle beam (12).

4. The rear axle lifting tool for a mine car according to claim 1, characterized in that: The front supporting upright plate (11) and the side supporting upright plate (15) are both provided with limiting grooves (19) at the middle positions of the tops.

5. The rear axle lifting tool for a mine car according to claim 1, characterized in that: The front support upright plate (11) is inserted into the support frame, and the side support upright plates (15) are welded to the support frame.

6. The rear axle lifting tool for a mine car according to claim 1, characterized in that: Each set of scissor arms comprises a first arm (41) and a second arm (42) that cross each other, wherein the upper end of the first arm (41) is hinged to the support seat (1) and the lower end is slidably connected to the tooling base (3); the upper end of the second arm (42) is slidably connected to the support seat (1) and the lower end is hinged to the tooling base (3).

7. The rear axle lifting tool for a mine car according to claim 6, characterized in that: A fixed shaft sleeve (44) is welded to the same end of the support seat (1) and the tooling base (3), and the upper end of the first arm (41) and the lower end of the second arm (42) are connected to the fixed shaft sleeve (44) via a pin shaft.

8. The rear axle lifting tool for a mine car according to claim 1, characterized in that: The turntable (22) is mounted on the turbine screw elevator (21) through grooves and splines.

9. The rear axle lifting tool for a mine car according to claim 1, characterized in that: An upper mounting plate (14) is mounted on the support frame of the support seat (1), a lower mounting plate (31) is mounted on the tooling base (3), and the turbine screw elevator (21) is mounted between the upper mounting plate (14) and the lower mounting plate (31).

10. The mine car rear axle lifting tool according to claim 1, characterized in that: The support frame and the tooling base (3) are both welded by channel steel.

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