Differential mechanism assembly overturning tool

Abstract

The utility model discloses an overturning tool for a differential mechanism assembly. The overturning tool comprises a supporting seat, a pair of fixing frames and a hanging frame. The supporting seat is used for supporting a differential mechanism assembly with an upward gravity center; the fixing frames are symmetrically arranged on the two sides of the differential mechanism assembly, the lower portions of the fixing frames are fixed to the supporting base, and the upper portions of the fixing frames make contact with the differential mechanism assembly and are used for limiting axial movement of the differential mechanism assembly; the hanging bracket is provided with three connecting points; the connecting points on the two sides are hinged to the corresponding hinge points on the fixing frame respectively, the axial center lines of the hinge points on the two sides jointly form a rotating axis during overturning, and the rotating axis during overturning is located below the gravity center position line of the differential mechanism assembly. The middle connecting point is used for being connected with lifting equipment, and after the lifting frame is lifted upwards to enable the supporting base to be separated from the supporting plane, the differential mechanism assembly automatically turns over by 180 degrees to enable the gravity center of the differential mechanism assembly to face downwards. The differential mechanism assembly turnover machine can replace a turnover machine and is independently used or fused into a production line to complete 180-degree turnover of a differential mechanism assembly.

Description

Technical Field

[0001] The utility model relates to a differential assembly turnover tooling, belonging to the technical field of differential assemblies. Background Art

[0002] The differential assembly is an important component of a rigid drive axle and needs to be turned over by 180° during the assembly process. At present, a turnover machine is generally adopted in the engineering machinery industry on the production line: the turnover machine is installed with an electric control system. After starting the clamping button, the clamping mechanism of the turnover machine will clamp the differential assembly. After starting the turnover button, the clamping mechanism drives the differential assembly to turn over by 180°, completing the turnover operation. This solution is applicable to assembly line operations, but the cost is too high.

[0003] The production volume of the drive axle of heavy-duty mining trucks is low. In the case of no production line, during the assembly process of the differential assembly, manual turnover is required. If the differential assembly is directly turned over on the workbench with a lifting rope, it is easy to cause parts to be knocked and damaged, and there are also safety hazards.

[0004] In order to solve the turnover problem during the assembly process of the differential assembly, in the case of low production volume without investing in a turnover machine, it is now necessary to design a simple differential assembly turnover tooling. Summary of the Invention

[0005] The utility model provides a differential assembly turnover tooling, which can replace the turnover machine, be used alone or integrated into the production line, complete the 180° turnover of the differential assembly, and solve the turnover problem during the assembly process of the existing differential assembly of heavy-duty mining trucks.

[0006] The utility model is realized according to the following technical solutions:

[0007] A differential assembly turnover tooling includes:

[0008] A support seat for supporting the differential assembly with its center of gravity facing upward;

[0009] A pair of fixed frames symmetrically arranged on both sides of the differential assembly. The lower part of the fixed frame is fixed to the support seat, and the upper part of the fixed frame is in contact with the differential assembly to limit the axial movement of the differential assembly; there is a hinge point on the fixed frame;

[0010] A suspension bracket having three connection points; the two side connection points are respectively hinged to the hinge points on the corresponding fixed frames. The axial center lines of the two side hinge points together form the rotation axis during turnover, and the rotation axis during turnover is located below the center of gravity position line of the differential assembly; the middle connection point is used to connect with the lifting equipment. When the suspension bracket is lifted upward so that the support seat is separated from the support plane, the differential assembly automatically turns over by 180° to make its center of gravity face downward.

[0011] In some embodiments, the support base is formed by welding together a seat ring arranged coaxially up and down and a plurality of legs located between the two seat rings; the inner diameter of the seat ring is smaller than the outer diameter of the middle protruding portion of the differential assembly, the lower part of the differential assembly is inserted into the support base, and the upper seat ring supports at the lower step of the middle protruding portion of the differential assembly.

[0012] In some embodiments, the fixing bracket includes:

[0013] A claw for limiting the differential assembly on the support base;

[0014] A rotating shaft, fixed together with the claw, and a groove is provided in a circumferential manner on the radial surface of the outer end of the rotating shaft, and the hinge point of the fixing bracket is formed at this groove.

[0015] In some embodiments, the claw includes:

[0016] An L-shaped bracket, including a horizontal plate and a vertical plate, the free end of the horizontal plate is welded to the upper seat ring of the support base, and the rotating shaft is welded to the outer side surface of the vertical plate;

[0017] A horizontal telescopic member, fixed to the top of the vertical plate, and acting on the upper step of the middle protruding portion of the differential assembly.

[0018] In some embodiments, the horizontal telescopic member includes:

[0019] A fixing block, welded to the vertical plate, and a rectangular groove is provided in the horizontal direction of the fixing block and a through hole communicating with the rectangular groove and penetrating the upper and lower surfaces is provided in the vertical direction;

[0020] A pressing plate with a rectangular cross-section, inserted into the rectangular groove, and having a clearance fit between the two, and at least one mounting hole is provided on the pressing plate. Adjust the front and rear positions of the pressing plate to make it fit against the upper step of the middle protruding portion of the differential assembly;

[0021] A fastening member, inserted into the aligned through hole of the fixing block and the mounting hole of the pressing plate, for axially limiting the pressing plate.

[0022] In some embodiments, the fastening member is a bolt and nut assembly or a pin and split pin assembly.

[0023] In some embodiments, the hanger includes:

[0024] A hanging block, having an upward-facing threaded hole for assembling a lifting eye screw;

[0025] A connecting mechanism, having an overall arched structure, and hinged to the hanging block at the middle position;

[0026] A pair of oppositely disposed lifting plates are respectively hinged to both ends of the connecting mechanism. The bottom of the lifting plate is a hook-shaped structure for hooking into the groove on the fixing frame, forming the two side connection points of the lifting frame.

[0027] In some embodiments, the connecting mechanism consists of a bent component in the middle and horizontal components on both sides; the middle part of the bent component is a flat structure with a hinge hole, which forms the middle connection point of the lifting frame after being inserted into the lifting block; a flange structure is provided at the outer end of the horizontal component, a hinge hole is provided at the top of the lifting plate, and the outer end of the horizontal component passes through the hinge hole of the lifting plate and is axially limited by the flange structure; a limiting component is provided on the outer end face of the horizontal component for limiting the lifting plate between the flange structure and the limiting component.

[0028] In some embodiments, the limiting component includes a spacer sleeve and a bolt; an axial threaded hole is provided on the outer end face of the horizontal component, the spacer sleeve is sleeved on the horizontal component, and the bolt is screwed into the threaded hole to axially limit the spacer sleeve.

[0029] In some embodiments, the lifting block is an overall n-shaped structure, a threaded hole is provided on its top plate, and a through hole arranged coaxially is provided on each of the two side plates. After the middle hinge hole of the connecting mechanism is aligned with the through hole and a bolt is inserted, and a nut is screwed into the bolt, the lifting block and the connecting mechanism are connected together.

[0030] Advantages of the present utility model:

[0031] The present utility model provides a differential assembly flipping tooling. During the flipping operation in the assembly process of the differential assembly, without using a flipping machine, the flipping operation of the differential assembly is realized through a support seat, a fixing frame, a lifting frame, etc. It solves the flipping problem in the assembly process of the differential assembly of existing heavy-duty mining trucks. Description of the Drawings

[0032] The drawings, as a part of the present utility model, are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model, but do not constitute an improper limitation to the present utility model. Obviously, the drawings described below are only some embodiments, and those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts.

[0033] In the drawings:

[0034] Figure 1 It is a schematic diagram before flipping of the differential assembly flipping tooling of the present utility model;

[0035] Figure 2Schematic diagram of the differential assembly flipping tooling of the present utility model after flipping 180°;

[0036] Figure 3 Schematic diagram of the support base of the present utility model;

[0037] Figure 4 Schematic diagram of the fixing frame of the present utility model;

[0038] Figure 5 Cross-sectional view of the fixing frame of the present utility model;

[0039] Figure 6 Schematic diagram of the fixing block of the present utility model;

[0040] Figure 7 Schematic diagram of the hanging frame of the present utility model;

[0041] Figure 8 Cross-sectional view of the lifting block of the present utility model.

[0042] Reference signs in the drawings: 1, support base; 2, fixing frame; 3, hanging frame; 1-1, seat ring; 1-2, leg; 2-1, welding plate; 2-2, horizontal plate; 2-3, vertical plate; 2-4, rotating shaft; 2-5, nut; 2-6, pressing plate; 2-7, fixing block; 2-8, bolt; 3-1, lifting plate; 3-2, bolt; 3-3, washer; 3-4, spacer sleeve; 3-5, connecting mechanism; 3-6, lifting block; 3-7, bolt; 3-8, nut; 100, differential assembly.

[0043] It should be noted that these drawings and text descriptions are not intended to limit the scope of the concept of the present utility model in any way, but to illustrate the concept of the present utility model to those skilled in the art by referring to specific embodiments. Detailed implementation manners

[0044] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The following embodiments are used to illustrate the present utility model but not to limit the scope of the present utility model.

[0045] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0046] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0047] As Figure 1 , Figure 2 shown, a differential assembly flipping tooling includes a support base 1, a pair of fixing frames 2, and a hanging frame 3. The support base 1 is used to support the differential assembly 100 with its center of gravity facing upward. A pair of fixing frames 2 are symmetrically arranged on both sides of the differential assembly 100. The lower part of the fixing frame 2 is fixedly connected to the support base 1, and the upper part of the fixing frame 2 is in contact with the differential assembly 100 to limit the axial movement of the differential assembly 100. There is a hinge point on the fixing frame 2. The hanging frame 3 has three connection points. The two side connection points are respectively hinged to the hinge points on the corresponding fixing frames 2. The axial centerlines of the two side hinge points together form the rotation axis during flipping, and the rotation axis during flipping is located below the center of gravity position line of the differential assembly. The middle connection point is used to connect to the lifting equipment. When the hanging frame 3 is lifted upward so that the support base 1 is separated from the support plane, the differential assembly 100 automatically flips 180° to make its center of gravity face downward. The differential assembly flipping tooling provided by the present utility model can replace the flipping machine, be used alone or integrated into the production line to complete the 180° flipping of the differential assembly.

[0048] The following further describes the above-mentioned support base.

[0049] As Figure 3 shown, the support base 1 is composed of a seat ring 1-1 arranged coaxially up and down and a plurality of legs 1-2 located between the two seat rings 1-1 by welding. The inner diameter of the seat ring 1-1 is smaller than the outer diameter of the middle protruding part of the differential assembly 100. The lower part of the differential assembly 100 is inserted into the support base 1, and the upper seat ring 1-1 is supported at the lower step of the middle protruding part of the differential assembly 100.

[0050] It should be noted that through dimensional design, the height of the rotation axis 2-4 on the fixing frame 2 is lower than the center of gravity of the differential assembly 100, and the height of the support base 1 meets the requirement that there is no interference before and during the flipping of the differential assembly 100. After the differential assembly 100 is lifted, the workpiece automatically flips 180° to make the center of gravity of the workpiece face downward, completing the flipping operation.

[0051] The following further describes the above-mentioned fixing frame.

[0052] As Figure 4 , Figure 5As shown, the fixing bracket 2 includes a claw and a rotating shaft 2-4; the claw is used to limit the differential assembly 100 on the support seat 1; the rotating shaft 2-4 is fixed to the claw, and a groove is provided on the radial surface of the outer end of the rotating shaft 2-4, and the groove constitutes the hinge point of the fixing bracket 2.

[0053] A further solution is as Figure 4 、 Figure 5 As shown, the claw includes an L-shaped bracket and a horizontal telescopic member; the L-shaped bracket includes a horizontal plate 2-2 and a vertical plate 2-3. A welding plate 2-1 is fixed at the free end of the horizontal plate, and the welding plate 2-1 is welded to the upper seat ring 1-1 of the support seat 1. The rotating shaft 2-4 is welded to the outer side surface of the vertical plate 2-3; the horizontal telescopic member is fixed at the top of the vertical plate 2-3 and acts on the upper step of the middle protruding part of the differential assembly 100.

[0054] A further solution is as Figure 4 、 Figure 5 、 Figure 6 As shown, the horizontal telescopic member includes a fixing block 2-7, a pressing plate 2-6 with a rectangular cross-section, and a fastening member; the fixing block 2-7 is welded to the vertical plate 2-3. The fixing block 2-7 is provided with a rectangular groove in its horizontal direction and a through hole communicating with the rectangular groove and penetrating the upper and lower surfaces in its vertical direction; the pressing plate 2-6 is inserted into the rectangular groove, and there is a clearance fit between the two. The pressing plate 2-6 is provided with at least one mounting hole. Adjust the front and rear positions of the pressing plate 2-6 so that it fits on the upper step of the middle protruding part of the differential assembly 100; the fastening member is inserted into the aligned through hole of the fixing block 2-7 and the mounting hole of the pressing plate 2-6 to axially limit the pressing plate 2-6.

[0055] Preferably, the fastening member uses a bolt 2-8 and a nut 2-5 or uses a pin shaft and an open pin.

[0056] It should be noted that since the middle of the fixing block 2-7 is a rectangular groove structure, it is convenient for the pressing plate 2-6 to be inserted. After the pressing plate 2-6 is pressed, the rectangular groove increases the rigidity of the pressing plate, which can prevent the pressing plate 2-6 from being deformed by the acting force during the overturning process of the differential assembly 100, resulting in the dropping of the differential assembly 100; the fixing block 2-7 has a through hole, and the pressing plate 2-6 has a mounting hole. After the pressing plate 2-6 is adjusted to the pressing position, the holes of the fixing block 2-7 and the pressing plate 2-6 are aligned and the bolt 2-8 is inserted. After the bolt 2-8 is tightened by the nut 2-5, it can prevent the differential assembly 100 from dropping caused by the backward movement of the pressing plate 2-6.

[0057] The above hanger is further described below.

[0058] As Figure 7As shown in the figure, the hanging bracket 3 includes a hanging block 3-6, a connecting mechanism 3-5, and a pair of lifting plates 3-1 facing each other; the hanging block 3-6 has an upward threaded hole for assembling a lifting ring screw; the connecting mechanism 3-5 is an arch structure as a whole, and its middle position is hinged to the hanging block 3-6; a pair of lifting plates 3-1 facing each other are respectively hinged to both ends of the connecting mechanism 3-5, and the bottom of the lifting plate 3-1 is a hook structure for hooking into the groove of the rotating shaft 2-4 to form the two-side connection points of the hanging bracket 3.

[0059] A further solution is as Figure 7 shown in the figure, the connecting mechanism 3-5 is composed of a bent part in the middle and horizontal parts on both sides; the middle part of the bent part is a flat structure with a hinge hole, which forms the middle connection point of the hanging bracket 3 after being inserted into the hanging block 3-6; a flange structure is provided at the outer end of the horizontal part, a hinge hole is provided at the top of the lifting plate 3-1, the outer end of the horizontal part passes through the hinge hole of the lifting plate 3-1, and axial limit is carried out through the flange structure; a limiting part is provided at the outer end face of the horizontal part for limiting the lifting plate 3-1 between the flange structure and the limiting part.

[0060] A further solution is as Figure 7 shown in the figure, the limiting part includes a spacer sleeve 3-4, a bolt 3-2 and a washer 3-3; an axial threaded hole is provided at the outer end face of the horizontal part, the spacer sleeve 3-4 and the washer 3-3 are sleeved on the horizontal part, and the bolt 3-2 is screwed into the threaded hole to carry out axial limit on the spacer sleeve 3-4.

[0061] A further solution is as Figure 8 shown in the figure, the hanging block 3-6 is an n-shaped structure as a whole, its top plate is provided with a threaded hole, and each of the two side plates is provided with a through hole arranged coaxially. After the middle hinge hole of the connecting mechanism 3-5 is aligned with the through hole, a bolt 3-7 is inserted, and after a nut 3-8 is screwed tightly in the bolt 3-7, the hanging block 3-6 and the connecting mechanism 3-5 are connected together.

[0062] It should be noted that the lifting plate 3-1 adopts a hook structure, which is convenient for sleeving on the rotating shaft 2-4 of the fixing bracket 2 to complete the connection between the hanging bracket 3 and the fixing bracket 2; the connecting mechanism 3-5 on the hanging bracket 3 and the hanging block 3-6 are hinged connections. After the differential assembly 100 is lifted, the left and right directions will automatically adjust the balance and will not be skewed.

[0063] Specific implementation process: As Figure 1 、 Figure 2As shown, lift the differential assembly 100 with its center of gravity facing upward and hoist it onto the support base 1 to complete all assembly operations for this process. After adjusting the pressure plate 2-6 on the fixing bracket 2 to the pressing position, tighten it with bolts 2-8. At this time, the differential assembly 100 has been fixed to the support base 1. Hoist the hanging bracket 3 onto the fixing bracket 2 and slip the lifting plate 3-1 onto the rotating shaft 2-4. There is a threaded hole at the upper end of the hanging block 3-6. After installing the lifting ring screw, the differential assembly 100 can be lifted by a crane. Since the center of gravity of the differential assembly 100 is facing upward at this time, after lifting the differential assembly 100 with a crane, the differential assembly 100 will flip along the rotation axis until its center of gravity faces downward. After flipping 180°, other assembly operations of the differential assembly 100 can be continued.

[0064] In the specification provided herein, a large number of specific details are described. However, it can be understood that the embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures, and technologies are not shown in detail so as not to obscure the understanding of this specification.

[0065] In addition, those skilled in the art can understand that although some of the embodiments described herein include certain features contained in other embodiments rather than other features, the combination of the features of different embodiments also means that it is within the protection scope of the present invention and forms different embodiments. For example, in the above embodiments, those skilled in the art can use them in combination according to the known technical solutions and the technical problems to be solved by this application.

[0066] The above description is only the preferred embodiments of the present invention and does not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art of this patent, without departing from the scope of the technical solution of the present invention, can make some modifications or decorations equivalent to the equivalent changes by using the technical content prompted above. However, as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change, and decoration made to the above embodiments according to the technical essence of the present invention still fall within the scope of the present invention's solution.

Claims

1. A differential assembly turning tool, characterized in that: include: A support seat, used for supporting the differential assembly with the center of gravity facing upward; A pair of fixing frames are symmetrically arranged on both sides of the differential assembly, the lower part of the fixing frames is fixed to the support seat, and the upper part of the fixing frames is in contact with the differential assembly, and is used to limit the axial movement of the differential assembly; the fixing frames have a hinge point; The hanger has three connection points; the connection points on both sides are respectively hinged to the hinge points on the corresponding fixing frame, and the axial center lines of the hinge points on both sides jointly constitute the rotation axis during flipping, and the rotation axis during flipping is located below the center of gravity position line of the differential assembly; the middle connection point is used to connect with the lifting equipment, when the hanger is lifted upward to cause the support seat to leave the supporting plane, the differential assembly automatically flips 180° so that its center of gravity faces downward.

2. The differential assembly turning tool according to claim 1, characterized in that: The support seat is composed of a seat ring arranged coaxially up and down and a plurality of legs welded between the two seat rings; The inner diameter of the seat ring is smaller than the outer diameter of the middle protrusion of the differential assembly. The lower part of the differential assembly is inserted into the support seat, and the upper seat ring is supported at the lower step of the middle protrusion of the differential assembly.

3. The differential assembly turning tool according to claim 1, characterized in that: The fixing frame comprises: A claw, used to limit the differential assembly on the support seat; The rotating shaft is fixed together with the clamping claws. A circle of grooves is arranged on the radial surface of the outer end of the rotating shaft, and the grooves constitute the hinge points of the fixing frame.

4. The differential assembly turning tool according to claim 3, characterized in that: The claws include: The L-shaped bracket comprises a horizontal plate and a vertical plate, wherein the free end of the horizontal plate is welded to the upper seat ring of the support seat, and the rotating shaft is welded to the outer side surface of the vertical plate; The horizontal telescopic component is fixed on the top of the vertical plate and acts on the upper step of the middle protrusion of the differential assembly.

5. The differential assembly turning tool according to claim 4, characterized in that: The horizontal telescopic component comprises: A fixing block, welded to the vertical plate, the fixing block having a rectangular groove in the horizontal direction and a through hole in the vertical direction that is connected to the rectangular groove and penetrates the upper and lower surfaces; A pressure plate with a rectangular cross section is inserted into the rectangular groove with a clearance fit between the two. The pressure plate is provided with at least one mounting hole. The front and rear positions of the pressure plate are adjusted so that the pressure plate fits on the upper step of the middle protrusion of the differential assembly. The fastening component is inserted into the aligned through hole of the fixing block and the mounting hole of the pressing plate to limit the axial position of the pressing plate.

6. The differential assembly turning tool according to claim 5, characterized in that: The fastening component is a bolt and a nut assembly or a pin and a cotter pin assembly.

7. The differential assembly turning tool according to claim 1, characterized in that: The hanger comprises: A lifting block having an upwardly facing threaded hole for receiving a lifting eye screw; The connecting mechanism is an arched structure as a whole, and the middle position thereof is hinged to the hanging block; A pair of lifting plates facing each other are respectively hinged at the two ends of the connecting mechanism. The bottom of the lifting plates is a hook-shaped structure for hooking into the groove on the fixing frame to form the connection points on both sides of the hanger.

8. The differential assembly turning tool according to claim 7, characterized in that: The connecting mechanism is composed of a middle bending component and horizontal components on both sides; The middle part of the bending component is set as a flat structure with a reaming hole, which forms the middle connection point of the hanger after being inserted into the hanging block; The outer end of the horizontal component is provided with a circle of flange structure, the top of the lifting plate is provided with a reaming hole, the outer end of the horizontal component is inserted into the reaming hole of the lifting plate, and axially limited by the flange structure; The outer end surface of the horizontal component is provided with a limiting component for limiting the lifting plate between the flange structure and the limiting component.

9. The differential assembly turning tool according to claim 8, characterized in that: The limiting component includes a spacer and a bolt; an axial threaded hole is provided on the outer end surface of the horizontal component, the spacer is sleeved on the horizontal component, and the bolt is tightened in the threaded hole to axially limit the spacer.

10. The differential assembly turning tool according to claim 7, characterized in that: The hanging block is an N-shaped structure as a whole, with the threaded hole on its top plate and a through hole coaxially arranged on each of the two side plates. The middle reamed hole of the connecting mechanism is aligned with the through hole and a bolt is inserted therein. The hanging block and the connecting mechanism are connected together after the nut is tightened in the bolt.

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