Cam shaft with good durability

Abstract

The camshaft with the good durability comprises a camshaft body, a first threaded rod is arranged on the outer surface of the lower end of the camshaft body, a threaded lantern ring is arranged at the lower end of the camshaft body, and an adjusting mechanism is arranged between the camshaft body and the first threaded rod. The adjusting mechanism comprises an inserting rod, key rods, a threaded groove, an inserting groove, a key groove, a second threaded rod, a threaded hole, a groove and a rotary knob, the inserting rod is fixedly installed in the middle of the outer surface of the upper end of the first threaded rod, the two sets of key rods are located on the two sides of the outer wall of the inserting rod correspondingly, and the threaded groove is formed in the middle of the outer surface of the upper end of the inserting rod; the slot is formed in the middle of the outer surface of the lower end of the cam shaft. According to the cam shaft with the good durability, the first threaded rod can be conveniently assembled, disassembled and replaced, the first threaded rod can be conveniently limited and fixed, the utilization rate of the cam shaft is increased, resource waste is reduced, the durability is good, and better use prospects are brought.

Description

Technical Field

[0001] The utility model relates to the field of camshafts, and specifically relates to a camshaft with good durability. Background Technique

[0002] Electric bicycles have become an increasingly popular means of transportation for people to travel due to their low price, flexible driving, and simple driving skills; the braking device, as an indispensable safety component of bicycles and electric bicycles, the reliability and sensitivity of its operation are directly related to people's lives. The camshaft is one of the components of the electric vehicle hub brake. Therefore, the design of the camshaft occupies a very important position in the design process of the hub brake. When the existing camshaft is in use, the first threaded rod is easily damaged and broken, resulting in the overall abandonment of the camshaft and wasting resources, which brings certain adverse effects to the use process. For this reason, we propose a camshaft with good durability. Content of the Utility Model

[0003] (1) Technical Problems to be Solved

[0004] Aiming at the deficiencies of the prior art, the utility model provides a camshaft with good durability, which has the advantages of being able to conveniently install, disassemble and replace the first threaded rod, facilitating the limit fixation of the first threaded rod, improving the utilization rate of the camshaft, reducing resource waste, and having good durability, and can effectively solve the problems in the background technique.

[0005] (2) Technical Solution

[0006] To achieve the above purpose, the technical solution adopted by the utility model is: a camshaft with good durability, including a camshaft, the lower outer surface of the camshaft is provided with a first threaded rod, the lower end of the camshaft is provided with a threaded sleeve ring, and an adjusting mechanism is arranged between the camshaft and the first threaded rod. The adjusting mechanism includes a plug rod, a key rod, a threaded groove, a slot, a key groove, a second threaded rod, a threaded hole, a groove and a knob. The plug rod is fixedly installed in the middle of the upper outer surface of the first threaded rod, and the two key rods are respectively located on both sides of the outer wall of the plug rod.

[0007] Preferably, the threaded groove is opened in the middle of the upper outer surface of the plug rod, the slot is opened in the middle of the lower outer surface of the camshaft, the two key grooves are respectively opened on both sides of the outer wall of the slot, and the groove is opened in the middle of the upper outer surface of the camshaft.

[0008] Preferably, the second threaded rod is located in the middle of the camshaft, a threaded hole is opened in the middle of the upper outer surface of the slot, the knob is fixedly installed on the upper outer surface of the second threaded rod, and the first threaded rod is in threaded connection with the threaded sleeve ring.

[0009] Preferably, the insertion rod and the insertion slot are in plug connection, and the key rod and the key slot are in plug connection.

[0010] Preferably, the second threaded rod and the threaded hole are in threaded connection, and the second threaded rod and the threaded groove are in threaded connection.

[0011] (III) Beneficial effects

[0012] Compared with the prior art, the present utility model provides a camshaft with good durability, and has the following beneficial effects:

[0013] The camshaft with good durability can facilitate the installation, disassembly and replacement of the first threaded rod, facilitate the limit fixation of the first threaded rod, improve the utilization rate of the camshaft, reduce resource waste, and has good durability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure in a camshaft with good durability of the present utility model.

[0015] Figure 2 It is a front view sectional view in a camshaft with good durability of the present utility model.

[0016] Figure 3 It is a structural diagram of the first threaded rod in a camshaft with good durability of the present utility model.

[0017] Figure 4 It is a structural diagram of the camshaft in a camshaft with good durability of the present utility model.

[0018] In the figure: 1, camshaft; 2, first threaded rod; 3, threaded sleeve ring; 4, adjusting mechanism; 5, insertion rod; 6, key rod; 7, threaded groove; 8, insertion slot; 9, key slot; 10, second threaded rod; 11, threaded hole; 12, groove; 13, knob. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with the specific embodiments.

[0020] This embodiment is a camshaft with good durability.

[0021] As Figures 1-4As shown in the figure, it includes a camshaft 1. A first threaded rod 2 is provided on the outer surface of the lower end of the camshaft 1. A threaded collar 3 is provided at the lower end of the camshaft 1. An adjusting mechanism 4 is provided between the camshaft 1 and the first threaded rod 2. The adjusting mechanism 4 includes a plug rod 5, a key rod 6, a threaded groove 7, a slot 8, a keyway 9, a second threaded rod 10, a threaded hole 11, a groove 12 and a knob 13. The plug rod 5 is fixedly installed in the middle of the outer surface of the upper end of the first threaded rod 2. Two groups of key rods 6 are respectively located on both sides of the outer wall of the plug rod 5.

[0022] The threaded groove 7 is opened in the middle of the outer surface of the upper end of the plug rod 5. The slot 8 is opened in the middle of the outer surface of the lower end of the camshaft 1. Two groups of keyways 9 are respectively opened on both sides of the outer wall of the slot 8. The groove 12 is opened in the middle of the outer surface of the upper end of the camshaft 1. The second threaded rod 10 is located in the middle of the camshaft 1. A threaded hole 11 is opened in the middle of the outer surface of the upper end of the slot 8. The knob 13 is fixedly installed on the outer surface of the upper end of the second threaded rod 10. The first threaded rod 2 and the threaded collar 3 are in threaded connection. The plug rod 5 and the slot 8 are in plug connection. The key rod 6 and the keyway 9 are in plug connection. The second threaded rod 10 and the threaded hole 11 are in threaded connection. The second threaded rod 10 and the threaded groove 7 are in threaded connection.

[0023] It should be noted that the present utility model is a camshaft with good durability. When the first threaded rod 2 is damaged and needs to be replaced, rotate the knob 13 inside the groove 12 to drive the rotation between the second threaded rod 10 and the threaded hole 11 while driving the second threaded rod 10 to move along the threaded groove 7. After separating the second threaded rod 10 from the threaded groove 7, pull the first threaded rod 2 to drive the plug rod 5 to slide along the slot 8 and the key rod 6 to slide along the keyway 9. After removing the first threaded rod 2 and replacing it with another set of first threaded rods 2, align the plug rod 5 and the key rod 6 on the first threaded rod 2 with the slot 8 and the keyway 9 respectively, slide along, rotate the knob 13, slide the second threaded rod 10 along the threaded hole 11, thread-rotate the second threaded rod 10 with the threaded groove 7, and fix the plug rod 5 to the camshaft 1. It can facilitate the installation, disassembly and replacement of the first threaded rod 2, facilitate the limit fixation of the first threaded rod 2, improve the utilization rate of the camshaft 1, reduce resource waste, and has good durability.

[0024] It should be noted that in this text, relational terms such as first and second (No. 1, No. 2) are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the existence of additional identical elements in the process, method, article or device comprising said element.

[0025] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all these changes and improvements fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A camshaft with good durability, comprising a camshaft (1), characterized in that: The outer surface of the lower end of the camshaft (1) is provided with a first threaded rod (2). A threaded collar (3) is provided at the lower end of the camshaft (1). An adjusting mechanism (4) is provided between the camshaft (1) and the first threaded rod (2). The adjusting mechanism (4) includes a plug rod (5), a key rod (6), a threaded groove (7), a slot (8), a keyway (9), a second threaded rod (10), a threaded hole (11), a groove (12) and a knob (13). The plug rod (5) is fixedly installed in the middle of the outer surface of the upper end of the first threaded rod (2). Two groups of the key rods (6) are respectively located on both sides of the outer wall of the plug rod (5).

2. The camshaft with good durability according to claim 1, characterized in that: The threaded groove (7) is opened in the middle of the outer surface of the upper end of the plug rod (5). The slot (8) is opened in the middle of the outer surface of the lower end of the camshaft (1). Two groups of the keyways (9) are respectively opened on both sides of the outer wall of the slot (8). The groove (12) is opened in the middle of the outer surface of the upper end of the camshaft (1).

3. The camshaft with good durability according to claim 2, characterized in that: The second threaded rod (10) is located in the middle of the camshaft (1). A threaded hole (11) is opened in the middle of the outer surface of the upper end of the slot (8). The knob (13) is fixedly installed on the outer surface of the upper end of the second threaded rod (10). The first threaded rod (2) and the threaded collar (3) are in threaded connection with each other.

4. A camshaft with good durability according to claim 3, characterized in that: The plug rod (5) and the slot (8) are in plug connection with each other. The key rod (6) and the keyway (9) are in plug connection with each other.

5. A camshaft with good durability according to claim 4, characterized in that: The second threaded rod (10) and the threaded hole (11) are in threaded connection with each other. The second threaded rod (10) and the threaded groove (7) are in threaded connection with each other.

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