Diesel engine tappet disassembling and assembling device

Abstract

The utility model discloses a diesel engine tappet disassembling and assembling device which comprises a sleeve with a hollow structure inside. The push rod penetrates through the sleeve, the outer side face of the push rod is attached to the inner side face of the sleeve, and the sleeve can move in the length direction of the push rod; one end of the push rod is sleeved with the rubber body, the swelling amount of the rubber body is changed by changing the position of the push rod, and the rubber body is used for generating friction force with the inner wall of the tappet hole; according to the diesel engine tappet dismounting and mounting device, dismounting and mounting of the tappet can be facilitated, the dismounting and mounting efficiency is high, and the diesel engine tappet dismounting and mounting device is suitable for dismounting and mounting of the tappet under various conditions.

Description

Technical Field

[0001] The utility model relates to the technical field of diesel engines, in particular to a device for disassembling and assembling a diesel engine tappet. Background Technique

[0002] The camshaft of a high-speed and high-power diesel engine is often arranged in the middle side of the engine body or symmetrically arranged on both sides. At the corresponding position of the engine body, there is a tappet hole for installing the tappet.

[0003] The diameter of the tappet installation hole is small and deep, and it cannot be assembled by hand. A magnetic pick-up is often used to suck the inside of the tappet to install it. However, due to the gravity of the tappet, the magnetic pick-up cannot install the tappet flexibly. During the installation process, the tappet installation hole needs to be vertically upward. It is not easy to align during the installation process, and it is easy to collide. Moreover, the magnetic pick-up generally has no magnetic conversion. When disassembling, it is necessary to borrow force or shake the pick-up forcefully to take it out. For a tappet with rollers at the bottom and a keyway, during the assembly process, due to the small fitting clearance and the need to align the keyway, it is not easy to accurately install it into the tappet hole using a magnetic pick-up. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to overcome the existing defects, provide a device for disassembling and assembling a diesel engine tappet, which can facilitate the disassembly and installation of the tappet, and has high disassembly and assembly efficiency, and can effectively solve the problems in the background technique.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: A device for disassembling and assembling a diesel engine tappet, comprising:

[0006] A sleeve, the inside of which is a hollow structure;

[0007] A push rod, passing through the sleeve, the outer side surface of the push rod is in contact with the inner side surface of the sleeve, and the sleeve can move along the length direction of the push rod;

[0008] A rubber body, sleeved on one end of the push rod, and the expansion amount of the rubber body is changed by changing the position of the push rod, so as to generate frictional force with the inner wall of the tappet hole;

[0009] A pushing member, arranged on the outer side surface of the push rod, for pushing the sleeve to move.

[0010] As a preferred technical scheme of the utility model, the push rod includes a rod body and a cone, and the cone is arranged at one end of the rod body for inserting into the rubber body.

[0011] As a preferred technical scheme of the utility model, the inside of the rubber body is provided with a cylindrical hole and a conical hole that are communicated with each other. One end of the rod body passes through the cylindrical hole in the rubber body, and the cone is inserted into the conical hole.

[0012] As a preferred technical solution of the present utility model, the sleeve includes a pipe body, a circular flange and a hexagonal head. The circular flange and the hexagonal head are respectively arranged at both ends of the outer side of the pipe body. The hexagonal head is in contact with the pushing member, and the circular flange is in contact with the rubber body.

[0013] As a preferred technical solution of the present utility model, a thread is provided on the outer side of the other end of the push rod. The pushing member is a wing nut, and the wing nut is threadedly connected to the outer side of the push rod.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: The diesel engine tappet disassembly and assembly device of the present utility model is reasonably designed, easy to operate, and convenient to carry. By changing the relative positions of the push rod and the sleeve, the expansion amount of the rubber body is controlled, so that a large frictional force is generated between the rubber body and the inner wall of the tappet hole, thereby realizing the fixation of the tappet and facilitating the disassembly of the tappet. The setting of the rubber body avoids bumping with the tappet and avoids damaging the tappet, is safe and reliable, and improves the disassembly and assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is a schematic structural diagram of the sleeve;

[0017] Figure 3 is a schematic structural diagram of the push rod;

[0018] Figure 4 is a schematic structural diagram of the rubber body.

[0019] In the figure: 1 sleeve, 11 pipe body, 12 circular flange, 13 hexagonal head, 2 push rod, 21 rod body, 22 conical body, 23 thread, 3 rubber body, 31 cylindrical hole, 32 conical hole, 4 pushing member. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1-4 , the present utility model provides a technical solution: a diesel engine tappet disassembly and assembly device, including a sleeve 1, a push rod 2, a rubber body 3 and a pushing member 4;

[0022] The push rod 2 includes a rod body 21 and a conical body 22. The conical body 22 is arranged at one end of the rod body 21 and is used for inserting into the rubber body 3. By moving the sleeve 1, the axial position of the rubber body 3 is changed. The change in the axial position controls the expansion amount of the rubber body 3.

[0023] The rubber body 3 is a cylindrical rubber body, and a cylindrical hole 31 and a conical hole 32 are arranged inside it. The cylindrical hole 31 and the conical hole 32 are internally connected. The conical body 22 on the push rod 2 is inserted into the conical hole 32. The rubber body is inserted into the tappet hole. By expanding or contracting the conical hole 32, the expansion amount of the rubber body 3 is controlled. The expansion amount causes a frictional force between the rubber body 3 and the inner wall of the tappet hole, thereby controlling the picking up and releasing of the tappet.

[0024] The sleeve 1 includes a tube body 11, a circular flange 12 and a hexagonal head 13. The circular flange 12 and the hexagonal head 13 are respectively arranged at both ends of the outer side surface of the tube body 11. The hexagonal head 13 is in contact with the pushing member 4 and is used for thrusting the pushing member 4. The circular flange 12 is in contact with the rubber body 3 and is used for thrusting the rubber body 3.

[0025] Furthermore, in order to ensure the stability of the movement process of the sleeve 1, a thread 23 is arranged on the outer side surface of the other end of the push rod 2. The pushing member 4 is a wing nut. The wing nut is threadedly connected to the outer side surface of the push rod 2. By controlling the screwing-in amount of the wing nut, the relative position between the push rod 2 and the sleeve 1 is controlled, and thus the expansion amount of the rubber body 3 is controlled. The force application is stable and reliable.

[0026] During use: Insert the rubber body 3 into the tappet hole, tighten the wing nut, and the push rod 2 will move accordingly. The conical body 22 of the push rod 2 and the conical hole 32 of the rubber body 3 have a relative displacement, causing the rubber body 3 to expand and tightly adhere to the inner wall of the tappet. The rubber body 3 and the inner wall generate sufficient frictional force. Pick up the tappet, apply lubricating oil to the outer wall of the tappet, align it with the tappet hole of the diesel engine body, and install it.

[0027] The structure of the utility model is simple, the disassembly and assembly efficiency is high, the quality stability is high, the requirements for operators are low, the operation is simple, it is convenient to carry, has a wide applicability, is suitable for the disassembly and assembly of tappets in various situations, and greatly improves the use convenience.

[0028] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A disassembly and assembly device for a diesel engine tappet, characterized in that: Comprising: A sleeve (1) with a hollow structure inside; A push rod (2) passing through the sleeve (1), and the outer side surface of the push rod (2) fits against the inner side surface of the sleeve (1); A rubber body (3) sleeved on one end of the push rod (2), and by changing the position of the push rod (2), the expansion amount of the rubber body (3) is changed, which is used to generate frictional force with the inner wall of the tappet hole; A pushing member (4) arranged on the outer side surface of the push rod (2) for pushing the sleeve (1) to move.

2. The disassembly and assembly device for a diesel engine tappet according to claim 1, wherein: The push rod (2) includes a rod body (21) and a conical body (22), and the conical body (22) is arranged at one end of the rod body (21) for inserting into the rubber body (3).

3. The disassembly and assembly device for a diesel engine tappet according to claim 2, wherein: A cylindrical hole (31) and a conical hole (32) communicating with each other are arranged inside the rubber body (3), one end of the rod body (21) passes through the cylindrical hole (31) inside the rubber body (3), and the conical body (22) is inserted into the conical hole (32).

4. The disassembly and assembly device for a diesel engine tappet according to claim 3, wherein: The sleeve (1) includes a pipe body (11), a circular flange (12) and a hexagonal head (13), the circular flange (12) and the hexagonal head (13) are respectively arranged at both ends of the outer side surface of the pipe body (11), the hexagonal head (13) is in contact with the pushing member (4), and the circular flange (12) is in contact with the rubber body (3).

5. The disassembly and assembly device for a diesel engine tappet according to claim 2, characterized in that: Threads (23) are arranged on the outer side surface of the other end of the push rod (2), the pushing member (4) is a wing nut, and the wing nut is threadedly connected to the outer side surface of the push rod (2).

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