Riveting structure of worm wheel shaft

Abstract

The utility model relates to the technical field of worm wheel shafts, and discloses a riveting structure of a worm wheel shaft, which comprises the worm wheel shaft, a worm wheel is sleeved on the worm wheel shaft, a connecting sleeve is fixed on the worm wheel, a fixing ring is fixed on the worm wheel, and a mounting pad is arranged on one side of the worm wheel. A first clamping groove is formed in the worm wheel shaft, the connecting sleeve can be clamped with the first clamping groove, a second clamping groove is formed in the worm wheel shaft, and the mounting pad can be clamped with the second clamping groove. The utility model has the beneficial effects that the gasket is preassembled before the worm gear is mounted, and the outer contour of the gasket is expanded by means of a stamping and riveting process, so that the gasket is tightly clamped with the clamping groove of the worm gear shaft, the connection stability of the worm gear and the worm gear shaft is enhanced, the operation procedures of workers are reduced, the defective rate of products caused by improper manual operation is reduced fundamentally, and the production efficiency is improved. And meanwhile, a fixing ring is specially additionally arranged on the worm wheel and is matched with a gasket, so that the worm wheel is prevented from falling off, and the connection reliability is further enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to worm shaft technical field, especially a riveting structure of worm shaft. BACKGROUND

[0002] In the manufacturing process of worm gear transmission device, the reliable connection of worm and worm shaft is very important, the common connection mode is that the clamping groove is set up on the worm shaft, after the worm is accurately set in the predetermined position outside the worm shaft, the clamping spring is inserted into the clamping groove by the worker manually, so as to realize the anti-separation fixing of worm and worm shaft, the manual installation of clamping spring is extremely high in dependence on the operation skill and concentration of the worker, a little deviation in the installation process can easily produce waste products, greatly influence product quality and qualification rate, simultaneously, due to the fact that the clamping spring is large in elasticity, the clamping spring has the risk of suddenly popping out when the worker operates, hinders the installation process, causes the installation efficiency to reduce, further slows down the production rhythm of the whole worm shaft, and increases the production cost. SUMMARY

[0003] In view of the above and / or the problems existing in the riveting structure of the worm shaft, the utility model is proposed.

[0004] Therefore, the problem to be solved by the utility model is that the manual installation of the clamping spring is prone to waste products and the clamping spring is prone to flying out when the worm and the worm shaft are connected, thereby reducing production quality and production efficiency.

[0005] To solve the above technical problems, the utility model provides the following technical scheme: a riveting structure of worm shaft, which comprises a worm shaft, a worm is sleeved on the worm shaft, a connecting sleeve is fixed on the worm, a fixing ring is fixed on the worm, and a mounting pad is arranged on one side of the worm.

[0006] As a preferred scheme of the riveting structure of the worm shaft, the worm shaft is provided with a first clamping groove, and the connecting sleeve can be clamped with the first clamping groove.

[0007] As a preferred scheme of the riveting structure of the worm shaft, the size of the mounting pad is larger than the size of the worm shaft.

[0008] As a preferred scheme of the riveting structure of the worm shaft, the worm shaft is provided with a second clamping groove, and the mounting pad can be clamped with the second clamping groove.

[0009] As a preferred scheme of the riveting structure of the worm shaft, the fixing ring has an arc surface and a vertical surface.

[0010] The utility model discloses beneficial effect is: install gasket before installing worm wheel, and expand gasket outer contour with the aid of stamping riveting technology, make it and worm wheel axle clamping groove tight clamping, enhance the stable degree of worm wheel and worm wheel axle connection, reduce the operation procedure of worker, reduced the product substandard rate caused by improper operation from the root, further improve worm wheel axle production quality and efficiency, specially add fixed ring on worm wheel, cooperate gasket, prevent worm wheel from falling off, further strengthen the reliability of connection. BRIEF DESCRIPTION OF DRAWINGS

[0011] In order to more clearly illustrate the technical scheme of the utility model embodiment, the following will be needed to use the drawings in the embodiment description briefly introduce, obviously, the following description in the drawings only some embodiments of the utility model, for those skilled in the art, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings. Wherein:

[0012] Figure 1 It is the overall structural drawing of the riveting structure of worm wheel axle.

[0013] Figure 2 It is the worm wheel structure diagram of the riveting structure of worm wheel axle.

[0014] Figure 3 It is the worm wheel section structure diagram of the riveting structure of worm wheel axle.

[0015] Figure 4 It is the riveting structure of worm wheel axle Figure 3 It is the local amplification structure diagram of A place in the middle.

[0016] Figure 5 It is the worm wheel another state structure diagram of the riveting structure of worm wheel axle.

[0017] Figure 6 It is the worm wheel another state section structure diagram of the riveting structure of worm wheel axle. DETAILED DESCRIPTION

[0018] In order to make the above-mentioned purpose, features and advantages of the utility model more obvious and easy to understand, the following specific embodiment of the utility model is explained in detail with the drawings in the specification.

[0019] In the following description, a lot of specific details are set forth in order to fully understand the utility model, but the utility model can also be implemented in other ways different from the description herein, and those skilled in the art can make similar generalization without violating the connotation of the utility model, therefore, the utility model is not limited by the following disclosed specific embodiments.

[0020] Secondly, the "one embodiment" or "embodiments" referred to herein are intended to represent any implementation falling within the scope of at least one implementation of the present application. The use of "in one embodiment" or "in an embodiment" does not in itself constrain the circumstances under which the embodiment can be used or implemented.

[0021] Embodiment 1

[0022] With reference to Figures 1-4 For the first embodiment of the present application, the embodiment provides a riveting structure of a worm shaft, the riveting structure of the worm shaft comprises a worm shaft 101, a worm 102 is sleeved on the worm shaft 101, a connecting sleeve 103 is fixed on the worm 102, the connecting sleeve 103 is used for avoiding the worm 102 from falling out from one end of the worm shaft 101, limiting the position of the worm 102, a fixing ring 104 is fixed on the worm 102, the setting of the fixing ring 104 is used for preventing the worm 102 from falling off after the stamping riveting, a mounting pad 105 is arranged on one side of the worm 102, the mounting pad 105 is used for limiting the worm 102 from the other side of the worm 102, wherein the stamping riveting process is prior art, and the present application does not make superfluous repetition, and the working principle can be clearly understood by those skilled in the art.

[0023] Through cooperation of the connecting sleeve 103 and the mounting pad 105, the position of the worm 102 on the worm 102 is limited, so that the stability of the connection between the worm 102 and the worm shaft 101 is ensured.

[0024] The mounting pad 105 is used instead of the snap spring, plastic deformation of the mounting pad 105 is caused through the stamping process, so that the function of the original snap spring is completed, the operation process of workers is reduced, the product defective rate caused by improper operation is reduced from the root, and production quality and production efficiency are improved.

[0025] Embodiment 2

[0026] With reference to Figures 1-6 For the second embodiment of the present application, the embodiment is based on the previous embodiment.

[0027] Specifically, the first clamping groove 101-1 is arranged on the worm shaft 101, the connecting sleeve 103 can be clamped with the first clamping groove 101-1, and the connecting sleeve 103 is connected with the worm shaft 101 in the mode of stamping riveting. When stamping, the connecting sleeve 103 is deformed and clamped with the first clamping groove 101-1, so as to limit the position of the worm 102.

[0028] Specifically, before the stamping process is performed, the size of the mounting pad 105 is greater than the size of the worm shaft 101, so that the mounting pad 105 can be sleeved on the worm shaft 101, and one end face of the mounting pad 105 is attached to one end face of the worm 102.

[0029] The material of the mounting pad 105 has good ductility and toughness, so that the mounting pad 105 can withstand a large plastic deformation without breaking. An appropriate stamping head is selected during stamping, the stamping head exerts pressure on the mounting pad 105, so that the mounting pad 105 is plastically deformed, thereby achieving a close connection with other components.

[0030] Specifically, the worm shaft 101 is provided with a second clamping groove 101-2, and the mounting pad 105 can be clamped with the second clamping groove 101-2. During the stamping process, the mounting pad 105 is plastically deformed and tightly adheres to the inner wall of the second clamping groove 101-2 on the worm shaft 101. Since one part of the mounting pad 105 is clamped with the second clamping groove 101-2, it will hinder the separation of the worm 102 and the worm shaft 101, and the connecting sleeve 103 is clamped with the first clamping groove 101-1 to limit the position of the other end of the worm 102, thereby ensuring that the worm 102 and the worm shaft 101 can be stably connected and fixed.

[0031] Specifically, the fixing ring 104 has an arc surface 104-1 and a vertical surface 104-2. The fixing ring 104 has a small height and good rigidity, so as to avoid affecting the fixing ring 104 during stamping.

[0032] There is a gap between the fixing ring 104 and the worm shaft 101. When the mounting pad 105 is plastically deformed, the mounting pad 105 will fill the gap between the fixing ring 104 and the worm shaft 101. Part of the mounting pad 105 will be clamped with the second clamping groove 101-2, and part of it will also fill the gap between the arc surface 104-1 and the vertical surface 104-2 of the fixing ring 104, so that the fixing ring 104 can hinder the separation of the mounting pad 105 and the worm 102, thereby achieving the function of preventing the worm 102 from falling off, and further strengthening the reliability of the connection.

[0033] In use, the worm 102 is first sleeved on the worm shaft 101, then the connecting sleeve 103 is clamped with the first clamping groove 101-1 by stamping and riveting, and then the mounting pad 105 is sleeved on the worm shaft 101. Then the mounting pad 105 is subjected to stamping and riveting process, so that the mounting pad 105 is clamped with the second clamping groove 101-2. Part of the mounting pad 105 will also fill the gap between the arc surface 104-1 and the vertical surface 104-2 of the fixing ring 104, so that the fixing ring 104 can hinder the separation of the mounting pad 105 and the worm 102, thereby completing the stable fixation of the worm shaft 101 and the worm 102.

[0034] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A riveting structure for a worm gear shaft, characterized in that: Comprising, The worm shaft (101) is sleeved with a worm wheel (102), the worm wheel (102) is fixed with a connecting sleeve (103), the worm wheel (102) is fixed with a fixed ring (104), and the worm wheel (102) is provided with a mounting pad (105) on one side.

2. The riveting structure of a worm shaft according to claim 1, wherein: The first clamping groove (101-1) is arranged on the worm shaft (101), and the connecting sleeve (103) can be clamped with the first clamping groove (101-1).

3. The riveting structure of a worm shaft according to claim 1 or 2, wherein: The size of the mounting pad (105) is greater than the size of the worm shaft (101).

4. The riveting structure of the worm shaft according to claim 3, wherein: The second clamping groove (101-2) is arranged on the worm shaft (101), and the mounting pad (105) can be clamped with the second clamping groove (101-2).

5. The riveted structure of a worm shaft according to claim 4, wherein: The fixed ring (104) has an arc surface (104-1) and a vertical surface (104-2).

Images