Drive shaft dismounting device

Abstract

The utility model relates to the technical field of vehicle dismounting tools, in particular to a driving shaft dismounting device. The driving shaft dismounting device comprises a first top plate, a second top plate, a nut piece and a threaded piece, and a through hole is formed in the first top plate in a penetrating mode; the second top plate is rotationally connected with the first top plate and can abut against the gearbox. The nut piece is installed on the first top plate, and the interior of the nut piece communicates with the through hole. The threaded part is in threaded connection with the nut part, and one end of the threaded part can penetrate out of the through hole and abut against the second top plate. Thus, the first top plate and the second top plate are inserted into the gap between the driving shaft and the gearbox shell, the threaded piece rotates relative to the nut piece and pushes the second top plate through external force, the second top plate rotates relative to the first top plate, and therefore the driving shaft is ejected out to be disassembled, disassembly is more convenient and labor-saving, and the disassembling device and the driving shaft are not prone to damage.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle disassembly tools, and in particular to a drive shaft disassembly device. Background Art

[0002] The drive shaft disassembly device is mainly used for the repair and replacement of the drive shaft on the vehicle. The drive shaft disassembly device inserts a crowbar between the drive shaft and the gearbox housing, uses the gearbox housing as a crowbar support point, and acts on the long arm of the crowbar perpendicular to the axis of the drive shaft to pry out the drive shaft.

[0003] However, due to the small gap between the drive shaft and the gearbox housing, the existing drive shaft disassembly device needs to use a large force on the longer extended action arm portion to pry out the drive shaft, making disassembly inconvenient. Utility Model Content

[0004] Based on this, it is necessary to provide a drive shaft disassembly device that can save effort and is easy to disassemble.

[0005] In order to solve the above technical problems, this application provides the following technical solutions:

[0006] A drive shaft disassembly device, the drive shaft disassembly device comprising: a first top plate, used to abut against the drive shaft and having a through hole extending therethrough; a second top plate, rotatably connected to the first top plate and used to abut against the gearbox; a nut member, mounted on the first top plate and located at the through hole, and the interior of the nut member being connected to the through hole; a threaded member, threadedly connected to the nut member, and one end of the threaded member being able to pass through the through hole and abut against the second top plate; wherein the threaded member can rotate relative to the nut member in response to an external force and push the second top plate, so that the second top plate can rotate relative to the first top plate and unfold relative to the first top plate.

[0007] It can be understood that the present application sets a first top plate and a second top plate, inserts the first top plate and the second top plate between the gap between the drive shaft and the gearbox housing, and through the action of external force, causes the threaded member to rotate relative to the nut member and push the second top plate, causing the second top plate to rotate relative to the first top plate, thereby ejecting the drive shaft for disassembly. This method does not require a very long extension arm, and directly acts on the threaded member, and ejects the drive shaft through the process of the threaded member rotating, making disassembly more convenient and labor-saving.

[0008] In one embodiment, the first top plate is arranged in an arc shape, the second top plate is arranged in an arc shape, and the second top plate is located inside the first top plate.

[0009] It can be understood that the second top plate is located on the inner side of the first top plate so that the first top plate can cover the second top plate, thereby reducing the volume and thickness between the second top plate and the first top plate, and further reducing the overall volume of the drive shaft disassembly device, so that it can adapt to a smaller gap between the drive shaft and the gearbox housing; at the same time, the first top plate and the second top plate are both arranged in an arc shape, so that when the two are connected and inserted into the gap, the contact surface between the disassembly device and the drive shaft is increased, thereby making the disassembly device and the drive shaft less likely to be damaged.

[0010] In one embodiment, the first top plate and the second top plate are connected by a hinge, and there are at least two hinge points between the first top plate and the second top plate.

[0011] It can be understood that the hinge method is simple and the dimension chain is shorter, thereby further reducing the volume of the drive shaft disassembly device. At the same time, the hinge method improves the accuracy of the relative movement between the first top plate and the second top plate, making the drive shaft disassembly device less likely to be dislocated and broken during operation; at the same time, the two hinge points can improve the stability of the connection between the two top plates.

[0012] In one of the embodiments, the first top plate is provided with a support plate, the support plate has a support plane, and the support plane is used to abut against the drive shaft.

[0013] It can be understood that by providing a support plate, not only the structural strength of the first top plate can be enhanced, but also the support plane can be used to abut the drive shaft, thereby increasing the contact area between the first top plate and the drive shaft, making the process of ejecting the drive shaft more stable.

[0014] In one embodiment, a limiting plate is provided on the second top plate, and a limiting step is formed between the limiting plate and the second top plate, and the limiting step can be limited to the gearbox. In this way, the second top plate can be stably stuck on the gearbox, thereby improving the stability of the drive shaft disassembly device.

[0015] In one embodiment, the nut member is fixed to the first top plate by welding.

[0016] It can be understood that the welding method is more secure, so that the nut part is not easily damaged and falls off when the drive shaft disassembly device is in operation.

[0017] In one embodiment, the nut member includes a connecting plate and a threaded sleeve, the connecting plate covers the through hole and is connected to the first top plate, the threaded sleeve is fixed to the connecting plate, and the threaded sleeve is communicated with the through hole; the threaded member is threadedly connected to the threaded sleeve.

[0018] It can be understood that the provision of the connecting plate can increase the stability of the connection between the nut member and the first top plate. The threaded sleeve is connected to the through hole, so that the threaded member can be threadedly connected to the nut member and push the second top plate through the through hole on the first top plate.

[0019] In one embodiment, the threaded member includes a screw rod and a nut. One end of the screw rod is threadedly connected to the nut member and can pass through the through hole and can abut against the second top plate. The nut is arranged at the other end of the screw rod for cooperating with an external force-applying member.

[0020] In one of the embodiments, the threaded member further includes a retaining ring, and the retaining ring is arranged in the circumference of the nut member.

[0021] It can be understood that the retaining ring can not only limit the external force-applying member, making it more secure and convenient to act on the threaded member, but also increase the contact area between the threaded member and the nut member, making it less likely to damage the threaded member.

[0022] In one embodiment, reinforcing ribs are further provided inside the first top plate and the second top plate to improve the strength of the first top plate and the second top plate.

[0023] It can be understood that the reinforcing ribs can make the first top plate and the second top plate have greater strength and rigidity without increasing the section thickness, which is suitable for the gap between the smaller drive shaft and the gearbox body, and reduces the weight of the drive shaft disassembly device and reduces the cost. At the same time, it also enables the two top plates to overcome the distortion or fracture caused by the uneven stress generated during their relative movement.

[0024] Compared with the prior art, the drive shaft disassembly device is provided with a first top plate and a second top plate, and the first top plate and the second top plate are inserted between the gap between the drive shaft and the gearbox housing. Through the action of external force, the threaded member rotates relative to the nut member and pushes the second top plate, so that the second top plate rotates relative to the first top plate, thereby ejecting the drive shaft for disassembly. In this way, there is no need for a long extended action arm to act, and the threaded member is directly acted on, and the drive shaft is ejected through the process of the threaded member rotating, making disassembly more convenient and labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 This is a schematic structural diagram of the drive shaft disassembly device provided in this application.

[0027] Figure 2 An exploded schematic diagram of the drive shaft disassembly device structure provided in this application.

[0028] Figure 3 This is a cross-sectional schematic diagram of the drive shaft disassembly device structure provided in this application.

[0029] Figure 4 This is a schematic structural diagram of the second top plate of the drive shaft disassembly device provided in this application.

[0030] 100. drive shaft disassembly device; 10. first top plate; 11. through hole; 12. support plate; 121. support plane; 13. hinge point; 20. second top plate; 21. limit plate; 22. limit step; 30. nut member; 31. connecting plate; 32. threaded sleeve; 40. threaded member; 41. screw rod; 42. nut; 43. retaining ring. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0032] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this application are for illustrative purposes only and do not represent the only implementation method.

[0033] 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 this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0034] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are in contact indirectly 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] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more related listed items.

[0036] See also Figure 1 to Figure 2 The present application provides a drive shaft disassembly device 100, which is used for disassembling the drive shaft of vehicles such as automobiles, and is mainly used for disassembling the vehicle drive shaft for maintenance, so as to reduce the force of the disassembly process, increase the contact area between the disassembly device and the drive shaft, reduce the damage rate of the disassembly device and the drive shaft, and facilitate disassembly.

[0037] like Figures 1 to 4 As shown, the drive shaft disassembly device 100 includes a first top plate 10, a second top plate 20, a nut member 30 and a threaded member 40. The first top plate 10 is used to abut against the drive shaft and is provided with a through hole 11 extending therethrough; the second top plate 20 is rotatably connected to the first top plate 10 and is used to abut against the gearbox; the nut member 30 is installed on the first top plate 10 and is located at the through hole 11, and the interior of the nut member 30 is connected to the through hole 11; the threaded member 40 is threadedly connected to the nut member 30, and one end of the threaded member 40 can pass through the through hole 11 and can abut against the second top plate 20; wherein, the threaded member 40 can rotate relative to the nut member 30 in response to an external force and push the second top plate 20, so that the second top plate 20 rotates relative to the first top plate 10 and unfolds relative to the first top plate 10.

[0038] It should be explained that the disassembly of the drive shaft requires inserting a disassembly tool into the gap between the drive shaft and the gearbox housing, and then applying force to the extended part of the disassembly tool to push the drive shaft out for disassembly. This type of disassembly tool has a relatively small thickness of the part inserted into the gap, while the active part is relatively long, which not only requires a large force, but also makes the disassembly tool easy to break, and is very easy to damage the drive shaft and the gearbox housing. Therefore, in the present application, a first top plate 10 and a second top plate 20 are provided, and when the second top plate 20 is hingedly connected to the first top plate 10 and overlaps with the first top plate 10, it is inserted between the gap between the drive shaft and the gearbox housing, and then through the action of external force, the threaded member 40 is rotated relative to the nut member 30 and pushes the second top plate 20, so that the second top plate 20 rotates relative to the first top plate 10, thereby pushing the drive shaft out for disassembly. Such a drive shaft disassembly device 100 does not require a very long extended action arm. Workers can directly apply force to the threaded member 40, and through the threaded member 40, the threaded member 40 is rotated and the second top plate 20 is pushed through the through hole 11 to rotate and separate relative to the first top plate 10, thereby ejecting the drive shaft, making disassembly more convenient and labor-saving.

[0039] In one embodiment, please refer to Figures 1 to 3 The first top plate 10 is arranged in an arc shape and is provided with a through hole 11 which is arranged through the top plate 10, and the second top plate 20 is located inside the first top plate 10. The arc shape makes the structure of the first top plate 10 more stable, and both sides of the arc are inserted between the drive shaft and the gearbox housing, which increases the contact area between the first top plate 10 and the drive shaft, and makes the first top plate 10 less likely to be damaged during the action process; at the same time, the screw member 40 can pass through the first top plate 10 to act on the second top plate 20, so that the second top plate 20 rotates, thereby ejecting the drive shaft, and when inserted into the gap, the first top plate 10 covers the second top plate 20, reducing the volume between the second top plate 20 and the first top plate 10, thereby reducing the overall volume of the drive shaft disassembly device, so that it can be used for a smaller gap between the drive shaft and the gearbox housing.

[0040] Of course, the present invention is not limited thereto, and the first top plate 10 may also be provided in a pentagonal, hexagonal or other shape.

[0041] In one embodiment, the first top plate 10 is provided with reinforcing ribs inside, and the reinforcing ribs are used to improve the strength of the first top plate 10. In this way, the reinforcing ribs can make the first top plate 10 have greater strength and rigidity without increasing the thickness of the section, and reduce the weight of the drive shaft disassembly device 100, reduce the cost, and also enable the first top plate 10 to overcome the distortion or fracture caused by the uneven stress generated during the relative movement.

[0042] Furthermore, the first top plate 10 and the second top plate 20 are connected by a hinged connection. It can be understood that the hinged connection is simple and the dimension chain is short, so that the drive shaft disassembly device 100 is reduced in size, and the hinged connection improves the relative motion accuracy between the first top plate 10 and the second top plate 20, so that the drive shaft disassembly device 100 is not easy to be dislocated and broken during operation.

[0043] By way of example, at least two hinge points 13 are provided between the first top plate 10 and the second top plate 20 .

[0044] Preferably, the number of hinge points 13 may be two, three, or four. The provision of multiple hinge points 13 here can improve the stability of the connection between the first top plate 10 and the second top plate 20. In an embodiment, the number of hinge points 13 is two.

[0045] In one embodiment, please continue to refer to Figure 1 and Figure 2 The first top plate 10 is provided with a support plate 12, and the support plate 12 has a support plane 121, and the support plane 121 is used to abut against the drive shaft. In this way, the support plate 12 strengthens the structural strength of the first top plate 10, and the support plane 121 abuts against the drive shaft, which can increase the contact area between the first top plate 10 and the drive shaft, making it more stable during the process of ejecting the drive shaft.

[0046] like Figure 4 As shown, the second top plate 20 is arranged in an arc shape, and its shape matches the shape of the first top plate 10. Of course, it is not limited thereto, and the second top plate 20 can also be arranged in a pentagonal, hexagonal or other shapes.

[0047] In one embodiment, the second top plate 20 is provided with reinforcing ribs to improve the strength of the second top plate 20. In this way, the reinforcing ribs work together with the reinforcing ribs inside the first top plate 10 to increase the structural rigidity of the first top plate 10 and the second top plate without increasing the thickness, so that the gap between the drive shaft and the gearbox body is small, and the second top plate 20 is prevented from being dislocated and broken when in action, thereby increasing the stability of the device.

[0048] Furthermore, a limiting plate 21 is provided on the second top plate 20, and a limiting step 22 is formed between the limiting plate 21 and the second top plate 20, and the limiting step 22 can be limited to the gearbox housing. In this way, the limiting step 22 abuts against the limiting gearbox, ensuring that the second top plate 20 is always in contact with the gearbox housing, so that the force applied to the second top plate 20 can always act on the gearbox, thereby improving the stability of the operation of the drive shaft disassembly device 100.

[0049] Please refer to Figures 1 to 3The nut member 30 includes a connecting plate 31 and a threaded sleeve 32. The connecting plate 31 covers the through hole 11 and is connected to the first top plate 10. The threaded sleeve 32 is fixed to the connecting plate 31 and communicates with the through hole 11. The threaded sleeve 32 is threadedly connected to the threaded member 40. The setting of the connecting plate 31 can increase the stability of the connection between the nut member 30 and the first top plate 10. The threaded sleeve 32 is communicated with the through hole 11, so that the threaded member 40 can be threadedly connected to the nut member 30 and pass through the through hole 11 on the first top plate 10 to push the second top plate 20.

[0050] Furthermore, the nut member 30 is fixed to the first top plate 10 by welding. It is understandable that the welding method makes the connection between the nut member 30 and the first top plate 10 more secure, avoiding the disassembly failure caused by the nut member 30 falling off when the drive shaft disassembly device 100 is in effect. Of course, the nut member 30 itself can also be fixed to the first top plate 10 by other means, such as buckling or bolting.

[0051] Here, the nut member 30 is provided as a nut or a nut-like sleeve member.

[0052] Please continue to refer to Figures 1 to 3 The threaded member 40 includes a screw rod 41 and a nut 42. One end of the screw rod 41 is threadedly connected to the nut member 30, and can pass through the through hole 11 and abut against the second top plate 20. The nut 42 is arranged at the other end of the screw rod 41 to cooperate with the external force-applying member. In this way, after the external force-applying member applies force to the nut 42 to rotate it into the nut member 30, it continues to apply force to rotate. At this time, the screw rod 41 passes through the through hole 11, thereby abutting against the second top plate 20, causing it to rotate relative to the first top plate 10, thereby ejecting the drive shaft for disassembly.

[0053] Furthermore, the threaded member 40 further includes a retaining ring 43, which is arranged in the circumference of the nut member 30. It can be understood that the retaining ring 43 can not only limit the external force-applying member, making it more firm and convenient to act on the threaded member, but also increase the contact area between the threaded member 40 and the nut member 30, and is not easy to damage the threaded member 40.

[0054] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0055] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the scope of patent protection of the present application shall be subject to the attached claims.

Claims

1. A drive shaft disassembly device, used for disassembling a drive shaft from a gearbox; characterized in that: The drive shaft disassembly device comprises: A first top plate (10) is used to abut against the driving shaft and is provided with a through hole (11) extending therethrough; A second top plate (20) is rotatably connected to the first top plate (10) and is used to abut against the gearbox; A nut member (30) is mounted on the first top plate (10) and is located at the through hole (11), and the interior of the nut member (30) is connected to the through hole (11); A threaded member (40) is threadedly connected to the nut member (30), and one end of the threaded member (40) can pass through the through hole (11) and can abut against the second top plate (20); wherein the threaded member (40) can rotate relative to the nut member (30) in response to an external force and push the second top plate (20), so that the second top plate (20) can rotate relative to the first top plate (10) and unfold relative to the first top plate (10).

2. The drive shaft disassembly device according to claim 1, characterized in that: The first top plate (10) is arranged in an arc shape, the second top plate (20) is arranged in an arc shape, and the second top plate (20) is located inside the first top plate (10).

3. The drive shaft disassembly device according to claim 1 or 2, characterized in that: The first top plate (10) and the second top plate (20) are connected in a hinged manner, and at least two hinge points (13) are provided between the first top plate (10) and the second top plate (20).

4. The drive shaft disassembly device according to claim 1, characterized in that: The first top plate (10) is provided with a support plate (12), wherein the support plate (12) has a support plane (121), and the support plane (121) is used to abut against the drive shaft.

5. The drive shaft disassembly device according to claim 1, characterized in that: A limiting plate (21) is provided on the second top plate (20), a limiting step (22) is formed between the limiting plate (21) and the second top plate (20), and the limiting step (22) can be limited to the gearbox.

6. The drive shaft disassembly device according to claim 1, characterized in that: The nut member (30) is fixed to the first top plate (10) by welding.

7. The drive shaft disassembly device according to claim 1 or 6, characterized in that: The nut member (30) comprises a connecting plate (31) and a threaded sleeve (32); the connecting plate (31) covers the through hole (11) and is connected to the first top plate (10); the threaded sleeve (32) is fixed to the connecting plate (31), and the threaded sleeve (32) is communicated with the through hole (11); the threaded member (40) is threadedly connected to the threaded sleeve (32).

8. The drive shaft disassembly device according to claim 1, characterized in that: The threaded member (40) comprises a screw rod (41) and a nut (42); one end of the screw rod (41) is threadedly connected to the nut member (30) and is capable of passing through the through hole (11) and abutting against the second top plate (20); the nut (42) is disposed at the other end of the screw rod (41) and is used to cooperate with an external force-applying member.

9. The drive shaft disassembly device according to claim 8, characterized in that: The threaded member (40) further comprises a retaining ring (43), and the retaining ring (43) is arranged in the circumferential direction of the nut member (30).

10. The drive shaft disassembly device according to claim 1, characterized in that: Reinforcing ribs are provided inside the first top plate (10) and the second top plate (20).

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