Protection device for wear of engine tappet

Abstract

The utility model discloses an engine tappet abrasion protection device which comprises a tappet body, a protection assembly, an abrasion-resistant plate and an installation assembly, the installation assembly is arranged at the bottom end of the tappet body, two clamping blocks are fixedly connected with the upper end of the abrasion-resistant plate, and the clamping blocks can be driven to move synchronously by controlling movement of the abrasion-resistant plate. When the clamping block is inserted into the groove, the fixing ball clings to the clamping block under the action of the spring and the telescopic rod, so that the clamping block is fixed; when the wear-resisting plate needs to be taken down, the operation is reversely repeated, and the wear-resisting plate can be quickly disassembled and assembled; the tappet main body is sleeved with the protection assembly, the first protection shell and the second protection shell are tightly attached to the tappet main body, the protection effect on the tappet main body is achieved, and abrasion to the tappet main body is reduced; and through the arrangement of a fixing block, a fixing groove, a fixing screw, a fixing hole, a limiting ring and a limiting groove, the stability of the protection assembly is improved, and the protection shell is prevented from sliding off.

Description

Technical Field

[0001] The utility model relates to the technical field of engine tappets, in particular to a protection device for engine tappet wear. Background Art

[0002] The existing tappet is a main component of the valve transmission group except the camshaft. It is easy to install inside the engine during installation, and the installation is convenient for operators. The tappet is conducive to achieving a certain lubrication effect when in use. The internal movement of the existing tappet is prone to friction during use, and a protective device is needed to reduce the friction it is subjected to. A protective device for preventing engine tappet wear described in announcement No. CN210768967U is provided with an oil storage tank on the tappet, so that the oil on the surface of the tappet can be easily stored in the oil storage tank during the working process. At the same time, a wear-resistant plate is installed at the bottom of the tappet to prevent the tappet from being worn during the movement, thereby improving the service life of the tappet. However, the prior art still has the following defects:

[0003] 1. The existing technology cannot replace the wear-resistant plate, which affects the protection effect;

[0004] 2. The existing technology cannot effectively reduce the wear of the tappet in the tappet hole, and the service life is short. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the above-mentioned defects and provide a protective device for engine tappet wear.

[0006] In order to solve the above technical problems, the utility model provides a technical solution: a protective device for engine tappet wear, comprising:

[0007] A tappet body, wherein two grooves are formed at the bottom end of the lower side of the tappet body;

[0008] A protection component, wherein the protection component is sleeved on the tappet body;

[0009] A wear-resistant plate, the wear-resistant plate being movably connected to the lower end of the tappet body;

[0010] The mounting assembly, the two mounting assemblies are respectively slidably connected to the inner walls of the two grooves, the mounting assembly includes a clamping block, a telescopic rod, a spring and a fixed ball, the clamping block is fixedly connected to the upper end of the wear-resistant plate, guide holes are provided on the inner walls on both sides of the groove, the inside of the guide hole is fixedly connected with the telescopic rod, a spring is sleeved on the telescopic rod, and a fixed ball is fixedly connected to the end of the telescopic rod away from the guide hole, and the fixed ball abuts against the side wall of the clamping block.

[0011] As an improvement, the protection component includes:

[0012] A protective shell 1, wherein the inner wall of the protective shell 1 is movably connected to the front end of the side wall of the tappet body;

[0013] A fixing block, wherein four fixing blocks are fixedly connected to the upper and lower sides of one end and the other end of the protective shell;

[0014] A second protective shell, the inner wall of which is movably connected to the rear end of the side wall of the tappet body;

[0015] The four fixing grooves are used in conjunction with the fixing blocks and are arranged at the upper and lower sides of both ends of the second protective shell.

[0016] As an improvement, an oil storage groove is provided in the middle of the outer wall of the protective shell 1 and the protective shell 2, and an oil guide groove is provided at the junction of the upper and lower ends of both sides of the protective shell 1 and the protective shell 2.

[0017] As an improvement, a plurality of fixing screws are provided on both sides of the push column body, and a plurality of fixing holes for cooperating with the fixing screws are provided on the fixing block and the side wall of the fixing groove.

[0018] As an improvement, three limiting rings are fixedly connected to the side wall of the push column body, and three limiting grooves for cooperating with the limiting rings are formed on the inner walls of the protective shell one and the protective shell two.

[0019] As an improvement, a protective pad is fixedly connected to the upper end of the wear-resistant plate.

[0020] As an improvement, the inner walls of the protective shell 1 and the protective shell 2 are fixedly connected with rubber pads.

[0021] The advantages of the utility model compared with the prior art are: 1. The utility model is provided with a mounting assembly at the bottom end of the push column body, and two clamping blocks are fixedly connected to the upper end of the wear-resistant plate. By controlling the movement of the wear-resistant plate, the clamping blocks can be driven to move synchronously. When the clamping blocks are inserted into the grooves, the fixing balls will be tightly attached to the clamping blocks under the action of the spring and the telescopic rod to fix the clamping blocks; when the wear-resistant plate needs to be removed, the clamping blocks will also generate thrust on the fixing balls to release the clamping blocks, so that the users can quickly disassemble and install the wear-resistant plates.

[0022] 2. The utility model has a protective assembly sleeved on the main body of the push rod. By placing the protective shell 1 and the protective shell 2 in close contact with the main body of the push rod, the protective effect on the main body of the push rod is achieved and the wear on the main body is reduced. The protective shell 1 and the protective shell 2 can be quickly replaced through the cooperation of the fixing block, the fixing groove, the fixing screw and the fixing hole. The stability of the protective assembly is improved by setting the limiting ring and the limiting groove to prevent the protective shell from slipping. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional schematic diagram of the utility model.

[0024] Figure 2It is an exploded view of the utility model.

[0025] Figure 3 It is a right view of the utility model.

[0026] Figure 4 It is a cutaway view of the utility model.

[0027] As shown in the figure:

[0028] 1. The main body of the tappet;

[0029] 2. Protective assembly; 21. Protective shell 1; 22. Fixing block; 23. Protective shell 2; 24. Fixing slot;

[0030] 3. Oil storage tank;

[0031] 4. Oil guide groove;

[0032] 5. Fixing screws;

[0033] 6. Fixing holes;

[0034] 7. Wear-resistant plate;

[0035] 8. Installation assembly; 81. Block; 82. Telescopic rod; 83. Spring; 84. Fixed ball;

[0036] 9. Limiting ring;

[0037] 10. Limiting groove. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] In the description of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0040] Embodiment 1:

[0041] like Figures 1 to 4As shown, this embodiment provides a protection device for engine tappet wear, comprising: a tappet body 1, a protection component 2, a wear-resistant plate 7 and a mounting component 8.

[0042] Among them, two grooves are opened at the lower bottom end of the push column body 1, the wear-resistant plate 7 is movably connected to the lower end of the push column body 1, the wear-resistant plate 7 is made of high-strength wear-resistant material, and a protective pad is fixedly connected to the upper end of the wear-resistant plate 7 to prevent it from causing excessive impact on the push column body 1 when it is pushed by the cam, causing damage to the push column body 1.

[0043] The two mounting components 8 are respectively slidably connected to the inner walls of the two grooves. The mounting components 8 include a block 81, a telescopic rod 82, a spring 83 and a fixed ball 84. The block 81 is fixedly connected to the upper end of the wear-resistant plate 7. When the block 81 is located inside the groove, its side wall will fully contact the inner wall of the groove to prevent it from shaking back and forth. Guide holes are provided on the inner walls of both sides of the groove. The guide holes are fixedly connected with the telescopic rod 82. The spring 83 is sleeved on the telescopic rod 82. The end of the telescopic rod 82 away from the guide hole is fixedly connected with the fixed ball 84. The two ends of the spring 83 are respectively fixedly connected to the telescopic rod 82 and the fixed ball 84. The fixed ball 84 is connected to the block 81. The side walls are abutted, and the size of the fixing ball 84 is consistent with the guide hole. When the user needs to install the wear-resistant plate 7, the block 81 will be inserted into the groove. During this process, the fixing ball 84 will always remain in contact with the side wall of the block 81 under the action of the spring 83 and the telescopic rod 82. After the wear-resistant plate 7 contacts the bottom end of the push column body 1, the block 81 will also be completely inserted into the groove. At this time, the fixing ball 84 will cooperate with the groove to fix the block 81 to fix the wear-resistant plate 7. When replacing, push the wear-resistant plate 7 downward to make the block 81 separate from the fixing ball 84, so that the user can quickly replace the wear-resistant plate 7.

[0044] The protection component 2 is sleeved on the pillar body 1. The protection component 2 includes a protection shell 1 21, a fixing block 22, a protection shell 23 and a fixing groove 24. The inner wall of the protection shell 1 21 is movably connected to the front end of the side wall of the pillar body 1, and the four fixing blocks 22 are fixedly connected to the upper and lower sides of both ends of the protection shell 1 21. The inner wall of the protection shell 23 is movably connected to the rear end of the side wall of the pillar body 1. The four fixing grooves 24 are used in conjunction with the fixing blocks 22 and are opened on the upper and lower sides of both ends of the protection shell 23. The inner walls of the protection shell 1 21 and the protection shell 2 23 are fixedly connected with rubber pads for enhancing the friction between the two and the pillar body 1 and reducing the wear on the pillar body 1. The protection of the pillar body 1 can be achieved by attaching the protection shell 1 21 to the front end of the side wall of the pillar body 1 and then attaching the protection shell 2 23 to the rear end of the side wall of the pillar body 1. During this process, the fixing block 22 will be gradually inserted into the fixing groove 24 to enhance the stability of the protection component 2 and facilitate installation by users.

[0045] An oil storage groove 3 is provided in the middle of the outer wall of the protective shell 1 21 and the protective shell 2 23, and an oil guide groove 4 is provided at the junction of the upper and lower ends of both sides of the protective shell 1 21 and the protective shell 2 23 to facilitate the flow of engine oil, further reduce the friction between the protective shell 1 21 and the protective shell 2 23 and the inner wall of the tappet hole, and reduce wear.

[0046] Embodiment 2:

[0047] The solution in Example 1 is further introduced below in combination with a specific working method, as described below:

[0048] A plurality of fixing screws 5 are arranged on both sides of the push column body 1, and a plurality of fixing holes 6 for cooperating with the fixing screws 5 are provided on the side walls of the fixing block 22 and the fixing groove 24, and threads for cooperating with the fixing screws 5 are provided on the inner walls of the fixing holes 6. The fixing screws 5 can be used to fix the fixing block 22 and the fixing groove 24 together, thereby fixing the protective shell 1 21 and the protective shell 2 23 to prevent the two from detaching during use.

[0049] Embodiment 3:

[0050] The solution in Example 2 is further introduced below in combination with a specific working method, as described below:

[0051] Three limiting rings 9 are fixedly connected to the side wall of the push rod body 1, and three limiting grooves 10 for cooperating with the limiting rings 9 are provided on the inner walls of the protective shell 1 21 and the protective shell 2 23. When the protective shell 1 21 and the protective shell 2 23 cooperate with each other to be sleeved on the push rod body 1, the limiting ring 9 will also be restricted in the limiting groove 10 to prevent the protective shell 1 21 and the protective shell 2 23 from sliding along the side wall of the push rod body 1, thereby further improving the stability of the device.

[0052] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A protection device for engine tappet wear, characterized in that: include: A tappet body (1), wherein two grooves are provided at the bottom end of the lower side of the tappet body (1), and three limiting rings (9) are fixedly connected to the side wall of the tappet body (1); A protection component (2), wherein the protection component (2) is sleeved on the tappet body (1); A wear-resistant plate (7), wherein the wear-resistant plate (7) is movably connected to the lower end of the tappet body (1); The mounting assembly (8) is provided with two mounting assemblies (8) which are respectively slidably connected to the inner walls of the two grooves. The mounting assembly (8) comprises a clamping block (81), a telescopic rod (82), a spring (83) and a fixed ball (84). The clamping block (81) is fixedly connected to the upper end of the wear-resistant plate (7). The inner walls of both sides of the groove are provided with guide holes. The inside of the guide holes is fixedly connected with the telescopic rod (82). The spring (83) is sleeved on the telescopic rod (82). The end of the telescopic rod (82) away from the guide hole is fixedly connected with a fixed ball (84). The fixed ball (84) abuts against the side wall of the clamping block (81).

2. The engine tappet wear protection device according to claim 1, characterized in that: The protection component (2) comprises: A protective shell (21), wherein the inner wall of the protective shell (21) is movably connected to the front end of the side wall of the tappet body (1); Fixed blocks (22), four of the fixed blocks (22) are fixedly connected to the upper and lower sides of both ends of the protective shell (21); A second protective shell (23), the inner wall of the second protective shell (23) being movably connected to the rear end of the side wall of the tappet body (1); Fixed grooves (24), four of the fixed grooves (24) are used in conjunction with the fixed blocks (22) and are disposed at the upper and lower sides of both ends of the second protective shell (23); The inner walls of the protective shell 1 (21) and the protective shell 2 (23) are both provided with three limiting grooves (10) used in conjunction with the limiting rings (9).

3. The engine tappet wear protection device according to claim 2, characterized in that: An oil storage groove (3) is provided in the middle of the outer wall of the protective shell 1 (21) and the protective shell 2 (23), and an oil guide groove (4) is provided at the junction of the upper and lower ends of both sides of the protective shell 1 (21) and the protective shell 2 (23).

4. The engine tappet wear protection device according to claim 2, characterized in that: A plurality of fixing screws (5) are provided on both sides of the tappet body (1), and a plurality of fixing holes (6) used in conjunction with the fixing screws (5) are provided on the side walls of the fixing block (22) and the fixing groove (24).

5. The engine tappet wear protection device according to claim 1, characterized in that: A protection pad is fixedly connected to the upper end of the wear-resistant plate (7).

6. The engine tappet wear protection device according to claim 2, characterized in that: The inner walls of the protective shell 1 (21) and the protective shell 2 (23) are both fixedly connected with rubber pads.

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