Special lifting appliance for gearbox differential mechanism

Abstract

The invention discloses a special lifting appliance for a gearbox differential mechanism, which comprises two lifting arms I distributed in a crossed X shape, two lifting arms II distributed in a crossed X shape, and two lifting arms II distributed in a crossed X shape, the upper ends of the two lifting arms I are rotationally connected with lifting arms II respectively, the lower ends of the two lifting arms I are bent inwards to form a first clamping jaw and a second clamping jaw which are used for clamping the two sides of a gear ring of the differential mechanism respectively, and the upper ends of the two lifting arms II are rotationally connected together to form an inverted V-shaped structure; the upper end of the lifting hook is connected with lifting equipment, and the lower end of the lifting hook is fixed to the upper end connecting point of the inverted-V-shaped structure. Thus, the first clamping jaw and the second clamping jaw are placed at the corresponding positions of a differential gear ring, the lifting hook is lifted through lifting equipment, the two lifting arms I are folded along the crossed position due to the gravity of the differential, the two lifting arms II are close to each other, then the lifting equipment pulls the lifting hook upwards, the first clamping jaw and the second clamping jaw clamp the differential more tightly when the lifting hook is pulled upwards, and the differential is clamped more tightly. And the problem that the differential mechanism falls off and is damaged is solved.

Description

Technical Field

[0001] The invention relates to the technical field of slings, and in particular to a special sling for a transmission differential. Background Art

[0002] In the gearbox of new energy vehicles, the typical structure of the differential assembly (differential for short) is as follows. It is mainly composed of a main reduction gear, a differential housing, a left-end roller bearing, a right-end roller bearing, a left-side half-shaft gear, a right-side half-shaft gear, a planetary gear shaft and a pair of planetary gears.

[0003] In the current production and assembly process, the installation of differentials usually relies on manual or mechanical handling, which is not only time-consuming and labor-intensive, but also due to the compact design of modern automobile gearboxes and limited internal space, there is also the problem that manual handling is not convenient for placing them in the narrow space of the gearbox housing, or the outer side of the differential is easily damaged by collision with the gearbox housing during placement and installation.

[0004] In order to solve the above problems, a lifting device is currently used to lift the differential. However, the existing lifting device is generally clamped on the outside of the differential with a fixed clamping force. During lifting, the differential may fall due to the gravity of the differential, thereby causing damage to the differential. Summary of the invention

[0005] In order to solve the technical problems existing in the background technology, the present invention provides a special lifting device for a transmission differential.

[0006] The present invention provides a special lifting device for a transmission differential, comprising:

[0007] Two suspension arms I are arranged in a cross-X shape, and the cross-position thereof is rotationally connected through a rotating member, and the upper ends of the two suspension arms I are rotationally connected to suspension arms II, and the lower ends are respectively bent inward to form a first clamping claw and a second clamping claw on both sides of the gear ring position of the differential, and the upper ends of the two suspension arms II are rotationally connected together to form an inverted V-shaped structure;

[0008] The hook has an upper end connected to the lifting device and a lower end fixed to the upper connection point of the inverted V-shaped structure.

[0009] Preferably, the hook is configured as a U-shaped structure.

[0010] Preferably, it also includes a safety plate located below the intersection of the two arms I, one end of the safety plate is rotatably connected to one of the arms I, and the other end is provided with an opening and is clamped on the other arm I through a safety pin.

[0011] Preferably, one end of the safety piece is rotatably connected to one of the suspension arms I via a pin.

[0012] Preferably, the opening of the safety piece faces downward and is set to be an inverted U-shaped opening.

[0013] Preferably, the rotating member is configured as a rotating shaft.

[0014] In summary, the present invention has the following beneficial effects: the first clamp and the second clamp are placed at corresponding positions of the differential gear ring, and the lifting hook is lifted by a lifting device. Due to the gravity of the differential itself, the two lifting arms I are closed along the crossing position and the two lifting arms II are brought closer to each other, and then the lifting device pulls up the hook. The higher it is pulled, the tighter the first clamp and the second clamp clamp the differential, thereby avoiding the problem of damage to the differential caused by falling.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a special lifting device for a transmission differential according to an embodiment of the present invention;

[0017] Figure 2 It is a schematic structural diagram of the gearbox differential special lifting device clamping the differential according to an embodiment of the present invention.

[0018] In the figure:

[0019] 1. Lifting arm I; 2. Rotating part; 3. Lifting arm II; 4. Differential; 5. First clamping jaw; 6. Second clamping jaw; 7. Hook; 8. Safety plate; 9. Pin shaft; 10. Safety pin; 11. Inverted U-shaped opening. DETAILED DESCRIPTION

[0020] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar symbols throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0021] like Figure 1-2 As shown, a special lifting device for a transmission differential proposed in this embodiment includes:

[0022] Two suspension arms Ⅰ1 are distributed in a cross-X shape, and the cross position thereof is rotationally connected through a rotating member 2. The upper ends of the two suspension arms Ⅰ1 are rotationally connected to suspension arms Ⅱ3 respectively, and the lower ends are respectively bent inward to form a first clamping claw 5 and a second clamping claw 6 for clamping the two sides of the gear ring position of the differential 4. The upper ends of the two suspension arms Ⅱ3 are rotationally connected together to form an inverted V-shaped structure;

[0023] The upper end of the hook 7 is connected to the lifting device, and the lower end is fixed to the upper connection point of the inverted V-shaped structure.

[0024] Specifically, the hook 7 is configured as a U-shaped structure.

[0025] It should be noted that the rotating member 2 is set as a rotating shaft, and of course it can also be other components that play a role of rotational connection, depending on the specific situation.

[0026] In this way, the first clamp 5 and the second clamp 6 are placed at the corresponding positions of the differential 4 ring gear, and the U-shaped hook 7 is lifted by the lifting equipment. Due to the gravity of the differential 4 itself, the two lifting arms Ⅰ1 are closed along the intersection position and the two lifting arms Ⅱ3 are close to each other, and then the lifting equipment pulls up the U-shaped hook 7. The higher it is pulled, the tighter the first clamp 5 and the second clamp 6 clamp the differential 4, thereby avoiding the problem of damage to the differential 4 caused by falling.

[0027] Furthermore, in order to avoid the problem that when the differential 4 is clamped between the first clamp 5 and the second clamp 6, the two arms Ⅰ1 rotate along the intersection due to additional factors, thereby causing the differential 4 clamped between the first clamp 5 and the second clamp 6 to fall off, the special lifting device in this embodiment also includes a safety plate 8 located below the intersection of the two arms Ⅰ1, one end of the safety plate 8 is rotatably connected to one of the arms Ⅰ1, and the other end is provided with an opening and is clamped on the other arm Ⅰ1 through a safety pin 10.

[0028] Furthermore, the opening of the safety piece 8 faces downward and is configured as an inverted U-shaped opening 11 .

[0029] Among them, one end of the safety piece 8 is rotatably connected to one of the suspension arms Ⅰ1 through a pin shaft 9.

[0030] In summary, the first clamp 5 and the second clamp 6 are placed at the corresponding positions of the differential 4 gear ring, and the U-shaped hook 7 is lifted by the lifting equipment. Due to the own gravity of the differential 4, the two arms Ⅰ1 are closed along the intersection position and the two arms Ⅱ3 are close to each other, and then the lifting equipment pulls up the U-shaped hook 7. The higher it is pulled, the tighter the first clamp 5 and the second clamp 6 clamp the differential 4. After clamping the differential 4, rotate one end of the safety plate 8 and buckle the inverted U-shaped opening 11 at the other end onto the safety pin 10. In this way, the angle between the two arms Ⅰ1 and the angle between the two arms Ⅱ3 are fixed and locked, and they will not rotate due to external force or other additional factors, causing the problem of the differential 4 falling off.

[0031] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0033] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A special lifting device for a gearbox differential, characterized in that: include: Two suspension arms I are arranged in a cross-X shape, and the cross-position thereof is rotationally connected through a rotating member, and the upper ends of the two suspension arms I are rotationally connected to suspension arms II, and the lower ends are respectively bent inward to form a first clamping claw and a second clamping claw on both sides of the gear ring position of the differential, and the upper ends of the two suspension arms II are rotationally connected together to form an inverted V-shaped structure; The hook has an upper end connected to the lifting device and a lower end fixed to the upper connection point of the inverted V-shaped structure.

2. The gearbox differential special lifting device according to claim 1, characterized in that: The hook is configured as a U-shaped structure.

3. The gearbox differential special lifting device according to claim 1, characterized in that: It also includes a safety plate located below the intersection of the two suspension arms I, one end of which is rotatably connected to one of the suspension arms I, and the other end of which is provided with an opening and is clamped on the other suspension arm I through a safety pin.

4. The gearbox differential special lifting device according to claim 3, characterized in that: One end of the safety piece is rotatably connected to one of the suspension arms I through a pin shaft.

5. The gearbox differential special lifting device according to claim 4, characterized in that: The opening of the safety piece faces downward and is set as an inverted U-shaped opening.

6. The gearbox differential special lifting device according to claim 1, characterized in that: The rotating member is configured as a rotating shaft.

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