Cam shaft convenient to disassemble

Abstract

The utility model discloses a cam shaft convenient to disassemble, and belongs to the technical field of cam shafts. Comprising a first camshaft and a second camshaft; the end of the first cam shaft is fixedly connected with a connecting block, and a cylindrical inserting groove is formed in the connecting block. An inserting block is fixedly arranged at the end of the second cam shaft and inserted into the inserting groove. A cylindrical mounting groove communicated with the inserting groove is formed in the connecting block, and a mounting block inserted into the mounting groove is fixedly connected to the end part of the inserting block; a fixing hole is formed in the mounting block, and an inserting structure inserted into the fixing hole is arranged in the connecting block; a movable groove is formed in the connecting block, and a clamping strip fixedly connected with the inserting block is rotationally arranged in the movable groove. An inlet groove is formed in the end of the connecting block, and the clamping strip and the inlet groove are arranged in a staggered mode. The two cam shafts are connected through the insertion connection structure, and fixation between the two cam shafts can be quickly relieved; and meanwhile, after the fixation of the two cam shafts is released, the two cam shafts rotate relatively, so that the existing clamping condition can be destroyed, and the separation is easier.

Description

Technical Field

[0001] The utility model provides a camshaft which is easy to disassemble and belongs to the technical field of camshafts, in particular to a camshaft used for low speed. Background Art

[0002] A camshaft is a component in a mechanical device, usually a cylindrical shaft with one or more protrusions on it, called cams, which are usually used to control the movement of other components. In the actual use of camshafts, it is often necessary to combine and splice two camshafts to transmit power.

[0003] In the use of low-speed camshafts, two camshafts spliced ​​together are often connected by threads or keys, which is troublesome to disassemble. Tools are needed to twist the threaded connection structure. In addition, the two camshafts are often stuck due to rust or accumulated debris due to long-term fixed connection, making separation very difficult. Forced separation is likely to cause damage to the connection structure or even the camshaft. Therefore, a camshaft that is easy to disassemble is urgently needed to solve the above problems. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the camshaft connected by traditional threads or keys is troublesome to disassemble and often gets stuck, making separation very difficult.

[0005] In order to solve the above-mentioned problems, the utility model proposes a technical solution: a camshaft that is easy to disassemble, comprising a first camshaft and a second camshaft; a connecting block is fixedly connected to the end of the first camshaft, and a cylindrical slot is provided in the connecting block; an insert block is fixedly arranged at the end of the second camshaft, and the insert block is inserted into the slot; a cylindrical mounting groove connected to the slot is provided in the connecting block, and a mounting block inserted into the mounting groove is fixedly connected to the end of the insert block; a fixing hole is provided in the mounting block, and a plug-in structure inserted into the fixing hole is provided in the connecting block; a movable groove is provided in the connecting block, and a clamping strip fixedly connected to the inserting block is rotatably provided in the movable groove; an entry groove connected to the movable groove is provided at the end of the connecting block, and the clamping strip is staggered with the entry groove.

[0006] As an improvement, a spring groove is provided in the connection block, and the plug-in structure is located in the spring groove; the plug-in structure includes a fixing rod and a fixing plate, and the fixing plate is fixedly sleeved on the fixing rod.

[0007] As an improvement, a spring sleeved on the fixing rod is arranged in the spring groove, and the spring has a reserved compression amount.

[0008] As an improvement, a countersunk hole is provided on the surface of the connection block, and the operating end of the fixing rod is located in the countersunk hole.

[0009] As an improvement, two corresponding clamping strips are provided on the insertion block, and the size of the clamping strips corresponds to the size of the movable slot; two corresponding entry slots are provided at the end of the connecting block, and the size of the entry slots corresponds to the size of the clamping strips.

[0010] As an improvement, the fixing holes are evenly distributed in a circular shape on the plug block.

[0011] Beneficial effects of the utility model:

[0012] A fixing hole is provided in the mounting block, and a plug-in structure inserted into the fixing hole is provided in the connection block; the two camshafts are connected by the plug-in structure, and can be quickly disassembled without twisting the thread or disassembly key. At the same time, the slot and the plug-in block are cylindrical, the mounting slot and the mounting block are also cylindrical, and the clamping strip and the entry slot are staggered. When releasing the fixation of the two, the two camshafts can only be completely separated by rotating the two camshafts relative to each other so that the clamping strip corresponds to the entry slot. The rotation process can destroy some existing stuck conditions, making separation easier. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a three-dimensional diagram of the connection state of a camshaft that is easy to disassemble.

[0014] Figure 2 This is a stereoscopic diagram from another perspective of the connection state of a camshaft that is easy to disassemble according to the utility model.

[0015] Figure 3 This is an exploded view of the connection between a first camshaft and a second camshaft of a camshaft that is easy to disassemble according to the utility model.

[0016] Figure 4 The utility model is a cross-sectional view of a connecting block of a camshaft which is easy to disassemble.

[0017] Figure 5 This is a partial enlarged view of a camshaft that is easy to disassemble according to the utility model.

[0018] 1. First camshaft; 2. Second camshaft; 3. Connecting block; 4. Slot; 5. Insert block; 6. Entry slot; 7. Countersunk hole; 8. Movable slot; 9. Mounting slot; 10. Mounting block; 11. Fixing hole; 12. Fixing rod; 13. Clip strip; 14. Spring slot; 15. Fixing plate; 16. Spring. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings.

[0020] according to Figure 1-5As shown: the utility model provides a camshaft that is easy to disassemble: it includes a first camshaft 1 and a second camshaft 2; a connecting block 3 is fixedly connected to the end of the first camshaft 1, and a cylindrical slot 4 is provided in the connecting block 3; an insert block 5 is fixedly arranged at the end of the second camshaft 2, and the insert block 5 is inserted into the slot 4; a cylindrical mounting groove 9 connected to the slot 4 is provided in the connecting block 3, and a mounting block 10 inserted into the mounting groove 9 is fixedly connected to the end of the insert block 5; a fixing hole 11 is provided in the mounting block 10, and a plug-in structure inserted into the fixing hole 11 is provided in the connecting block 3; a movable groove 8 is provided in the connecting block 3, and a clamping strip 13 fixedly connected to the clamping strip 5 is rotatably provided in the movable groove 8; an entry groove 6 connected to the movable groove 8 is provided at the end of the connecting block 3, and the clamping strip 13 is staggered with the entry groove 6.

[0021] The two camshafts are connected by a plug-in structure, which can be quickly disassembled; at the same time, the clamping strip 13 and the entry groove 6 are staggered. After the two camshafts are released, they can only be completely separated by rotating them relative to each other to destroy some existing jamming conditions, making separation easier.

[0022] A spring 16 slot 14 is provided in the connection block 3, and the plug-in structure is located in the spring 16 slot 14; the plug-in structure includes a fixing rod 12 and a fixing plate 15, and the fixing plate 15 is fixedly sleeved on the fixing rod 12. A spring 16 sleeved on the fixing rod 12 is provided in the spring 16 slot 14, and the spring 16 has a reserved compression amount. A countersunk hole 7 is provided on the surface of the connection block 3, and the operating end of the fixing rod 12 is located in the countersunk hole 7.

[0023] The spring 16 has a reserved compression amount to continuously exert pressure on the fixing plate 15, thereby increasing the stability of the plug-in structure fixed to the mounting block 10. The setting of the countersunk hole 7 can ensure that the entire plug-in structure is located in the connecting block 3, and prevent the operating end of the fixing rod 12 from protruding from the connecting block 3 and affecting the aesthetics.

[0024] Two corresponding clamping strips 13 are arranged on the insert block 5, and the size of the clamping strip 13 corresponds to the size of the movable groove 8, which can ensure that the clamping strip 13 can only rotate in the movable groove 8 and will not move; two corresponding entry grooves 6 are arranged at the end of the connecting block 3, and the size of the entry groove 6 corresponds to the size of the clamping strip 13.

[0025] The fixing holes 11 are evenly distributed in a circular shape on the insert block 5, which can facilitate selection of appropriate installation positions when installing the two camshafts.

[0026] Principle of the utility model

[0027] like Figure 1-2This is a diagram of the normal connection state of the two camshafts of the present application. The plug-in structure is inserted into the fixing hole 11, and the spring 16 can exert pressure on the fixing plate 15, so that the fixing rod 12 is stably inserted into the fixing hole 11, which can ensure the normal and stable connection of the two camshafts at low speed.

[0028] like Figure 4-5 As shown, when the two camshafts are to be disassembled, first pull the fixing rod 12 out of the fixing hole 11, and the fixing plate 15 compresses the spring 16. At this time, the fixing of the mounting block 10 is released, which is quick and convenient, and there is no need to use tools to disassemble the threaded connection structure. However, the clamping strip 13 is still misaligned with the entry slot 6. Operate the first camshaft 1 and the second camshaft 2 to make them rotate relative to each other until the clamping strip 13 and the entry slot 6 are in corresponding positions. During the rotation of the first camshaft 1 and the second camshaft 2, some existing stuck conditions can be destroyed, making separation easier. Only by making the two rotate relative to each other can the clamping strip 13 and the entry slot 6 be in corresponding positions, and the first camshaft 1 and the second camshaft 2 can be completely separated. Figure 3 As shown, it is avoided that the camshaft is damaged by the worker directly separating the two with force after releasing the fixation.

[0029] 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 camshaft that is easy to disassemble, comprising a first camshaft (1) and a second camshaft (2); a connecting block (3) is fixedly connected to the end of the first camshaft (1), and a cylindrical slot (4) is provided in the connecting block (3); an inserting block (5) is fixedly provided at the end of the second camshaft (2), and the inserting block (5) is inserted into the slot (4); the characteristics are: The connection block (3) is provided with a cylindrical mounting groove (9) connected to the slot (4); the end of the plug block (5) is fixedly connected with a mounting block (10) inserted into the mounting groove (9); the mounting block (10) is provided with a fixing hole (11), and the connection block (3) is provided with a plug-in structure inserted into the fixing hole (11); the connection block (3) is provided with a movable groove (8), and a clamping strip (13) fixedly connected to the plug block (5) is rotatably provided in the movable groove (8); the end of the connection block (3) is provided with an entry groove (6) connected to the movable groove (8), and the clamping strip (13) and the entry groove (6) are arranged in a staggered manner.

2. The camshaft that is easy to disassemble according to claim 1, characterized in that: A spring groove (14) is provided in the connection block (3), and the plug-in structure is located in the spring groove (14); the plug-in structure comprises a fixing rod (12) and a fixing plate (15), and the fixing plate (15) is fixedly sleeved on the fixing rod (12).

3. The camshaft that is easy to disassemble according to claim 2, characterized in that: A spring (16) sleeved on the fixing rod (12) is arranged in the spring groove (14), and a compression amount is reserved for the spring (16).

4. The camshaft that is easy to disassemble according to claim 3, characterized in that: A countersunk hole (7) is provided on the surface of the connection block (3), and the operating end of the fixing rod (12) is located in the countersunk hole (7).

5. The camshaft that is easy to disassemble according to claim 1, characterized in that: Two corresponding clamping strips (13) are arranged on the insert block (5), and the size of the clamping strips (13) corresponds to the size of the movable groove (8); two corresponding entry grooves (6) are arranged at the end of the connecting block (3), and the size of the entry grooves (6) corresponds to the size of the clamping strips (13).

6. The camshaft that is easy to disassemble according to claim 1, characterized in that: The fixing holes (11) are evenly distributed in a circular shape on the insert block (5).

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