Auxiliary tool for assembling spring collar and lantern ring on shaft lever

Abstract

The utility model discloses an auxiliary tool for assembling a spring collar and a lantern ring on a shaft lever, a groove for embedding the spring collar is formed in the shaft lever, and a pressing groove for pressing the spring collar in the groove is formed in the inner wall of the lantern ring. The auxiliary tool comprises arc-shaped groove plates which are arranged on the periphery of the spring collar in a split and sleeving mode and press the spring collar into the groove under the driving of external force, and inclined plane structures which are arranged on the outer walls of the tops of the arc-shaped groove plates and embedded into the inner wall of the lantern ring. According to the auxiliary tool, the spring collar can be embedded and positioned in the groove of the shaft rod so as to resist the position influence on the spring collar when the lantern ring is knocked to be sleeved in subsequently; meanwhile, the spring collar can be rotationally connected with the pressing groove of the lantern ring, the lantern ring can be smoothly positioned and sleeved after the spring collar is rotationally connected into the lantern ring, and the spring collar is prevented from being separated from the groove, so that quick assembly of the spring collar, the lantern ring and the groove is realized, and the problems of difficulty in assembly of the spring collar at present and mechanical abrasion between parts are solved.

Description

Technical Field

[0001] The present application relates to the technical field of mechanical assembly, and in particular to an auxiliary tool for assembling a spring retaining ring and a sleeve ring on a shaft. Background Art

[0002] Retaining rings, also known as circlips or retaining rings, are a type of fastener used on shafts or in holes. Their main function is to prevent parts from moving axially on shafts or holes. Retaining rings are usually made of elastic materials, such as spring steel. In mechanical assembly, retaining rings are widely used in various occasions where it is necessary to prevent axial movement of parts, such as the assembly of bearings, gears, transmission shafts and other components. By using retaining rings, the stability and reliability of mechanical structures can be effectively improved, and failures and damage caused by loose or displaced parts can be reduced.

[0003] The spring retaining ring used in the connection between the shaft and the collar is a fastener whose main function is to prevent the shaft or the collar from moving in the axial direction to ensure the stability and reliability of the connection. When in use, the spring retaining ring is usually installed in the groove of the shaft, and the collar is sleeved on the shaft. The spring retaining ring connects and limits the shaft and the collar axially through the pressing force of the pressure groove of the collar or the limiting effect of the inner wall step surface. When the shaft and the collar are subjected to external force, the spring retaining ring can still maintain a stable relative position to prevent loosening or falling off.

[0004] The current assembly process of the spring retaining ring is as shown in the attached manual. Figure 2 As shown, first, the spring retaining ring is sleeved and embedded in the groove of the shaft rod, and then the collar is inserted from the end of the shaft rod and contacts the circumference of the spring retaining ring. Then, an axial force (usually knocking) is applied to the collar. The spring retaining ring is axially limited by the groove of the shaft rod, and its arc-shaped circumference is squeezed by the inner wall of the collar, causing the collar to shrink radially, so that the collar continues to move downward and is sleeved on the spring retaining ring, and the outer wall surface of the spring retaining ring is embedded in the pressure groove of the inner wall of the collar to realize the axial fastening connection between the shaft rod and the collar.

[0005] At present, during the assembly process, since the inner wall of the collar and the spring retaining ring are in a tight fit or interference fit, it is usually necessary to apply a large axial impact force to the collar in order to make the spring retaining ring contract radially due to the external force of the collar and to insert the collar axially. During the operation, if the impact force is deflected, it will cause the following Figure 3 The axial deflection of the collar shown in the figure makes it difficult to insert the collar smoothly; and when the spring retaining ring is subjected to an unbalanced circumferential force, the collar will also drive the spring retaining ring to disengage from the groove of the shaft ( Figure 4 As shown in the figure, the difficulty of manual assembly is further increased. Improper operation may also cause mechanical damage to the spring retaining ring, the collar and the shaft, thus affecting the tightness of the connection. Summary of the invention

[0006] In response to the above-mentioned problems, the present application aims to provide an auxiliary tool for assembling spring retaining rings and collars on a shaft, which can realize the rapid assembly of the shaft, spring retaining rings and collars, and solve the difficulties in the current assembly of spring retaining rings, as well as the mechanical wear between the components.

[0007] In order to achieve the above-mentioned purpose, the technical solution adopted in the present application is as follows: an auxiliary tool for assembling a spring retaining ring and a collar on a shaft rod, the shaft rod having a groove for embedding the spring retaining ring, and the inner wall of the collar having a pressing groove for pressing the spring retaining ring in the groove, characterized in that: the auxiliary tool is connected to the spring retaining ring and embeds the spring retaining ring and the groove into position, and the auxiliary tool transfers the spring retaining ring embedded and positioned in the groove to the pressing groove of the collar under the action of external force.

[0008] Preferably, the auxiliary tool comprises an arc-shaped groove plate which is separately sleeved on the periphery of the spring retaining ring and presses the spring retaining ring into the groove under the driving of external force.

[0009] Preferably, the outer wall at the top of each of the arc-shaped slot plates is configured as an inclined surface structure embedded in the inner wall of the collar.

[0010] Preferably, the arc-shaped groove plate is connected to the inner side of the jaws of the articulated pliers body.

[0011] The beneficial effects of the present application are: the auxiliary tool can embed and position the spring retaining ring in the groove of the shaft rod to resist the positional influence on the spring retaining ring caused by subsequent knocking on the ring to be inserted; at the same time, the spring retaining ring and the pressing groove of the ring can be transferred, and when the spring retaining ring is transferred to the ring, the positioning and insertion of the ring can be smoothly achieved, and the spring retaining ring can be prevented from falling out of the groove, thereby realizing the rapid assembly of the three, solving the current difficulties in assembling the spring retaining ring and the mechanical wear between the components. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a diagram showing the separate structure of the shaft, spring retaining ring and collar to be assembled.

[0013] Figure 2 The following diagram shows the assembly of the shaft, spring retaining ring and collar in sequence.

[0014] Figure 3 For Figure 2 Illustration of axial deflection of the collar during assembly.

[0015] Figure 4 For Figure 2 The spring retaining ring is disengaged from the groove during assembly as shown in the figure.

[0016] Figure 5 This is a top view of the structure diagram as an auxiliary tool for this application.

[0017] Figure 6 This is a side view of the auxiliary tool for this application.

[0018] Figure 7 When assembling for this application, the spring retaining ring is set in the groove of the shaft rod as shown in the figure.

[0019] Figure 8 For this application Figure 7 The spring retaining ring is radially squeezed by the arc groove plate as shown in the figure.

[0020] Fig. 9 For this application Figure 8 The diagram shows a sleeve ring is placed on the foundation to realize the transfer function of the spring retaining ring.

[0021] Fig.10 For this application Fig. 9 After the transfer is completed, the arc groove plate, the collar and the spring retaining ring are separated as shown in the figure.

[0022] In the figure: 5-pliers body; 51-pliers mouth. DETAILED DESCRIPTION

[0023] In order to enable ordinary technicians in the field to better understand the technical solution of the present application, the technical solution of the present application is further described below in conjunction with the accompanying drawings and embodiments.

[0024] See attached Figures 1 to 10 An auxiliary tool for assembling a spring retaining ring and a collar on a shaft is shown, wherein the shaft 1 has a groove 1a for embedding the spring retaining ring 2, and the inner wall of the collar 3 is provided with a pressing groove (not shown in the figure) for pressing the spring retaining ring 2 into the groove 1a. In order to solve the difficulty of assembling the spring retaining ring 2 with the shaft 1 and the collar 3 at present, the present application designs an auxiliary tool, which is connected with the spring retaining ring 2 and embeds the spring retaining ring 2 into the groove 1a, that is, the spring retaining ring 2 is positioned in the groove 1a of the shaft 1, so as to resist the positional influence on the spring retaining ring 2 caused by the subsequent knocking of the collar 3 when it is inserted (such as the separation of the spring retaining ring 2 from the groove 1a).

[0025] On the basis of positioning the spring retaining ring 2 and the groove 1a by the auxiliary tool, the auxiliary tool transfers the spring retaining ring 2 embedded and positioned in the groove 1a and the pressed groove of the ring 3 under the action of external force, that is, when the ring 3 is knocked to be inserted, the force is transmitted to the auxiliary tool, and the displacement of the auxiliary tool transfers the positioned spring retaining ring 2 to the ring 3. After the spring retaining ring 2 is transferred to the ring 3, the positioning and insertion of the ring 3 can be smoothly realized, and the spring retaining ring can be prevented from escaping from the groove 1a, thereby realizing the rapid assembly of the three.

[0026] Specifically, Figure 4-5As shown, the auxiliary tool includes an arc-shaped groove plate 4 which is separately sleeved on the outer periphery of the spring retaining ring 2 and presses the spring retaining ring 2 into the groove 1a under the driving of external force. Figure 7 As shown, by applying radial force to the arc groove plate 4, the spring retaining ring 2 is driven to radially contract and press and embed into the groove 1a of the shaft rod 1 and maintain it, and then the collar 3 is inserted from the end of the shaft rod 1 and continuously inserted into the top side of the outer wall of the arc groove plate 4, and a certain height of overlap is performed ( Figure 8 As shown), the collar 3 is continued to be driven axially downward and the arc groove plate 4 is driven downward at the same time, so that the spring retaining ring 2 can be transferred from the arc groove plate 4 to the collar 3, and the axial external force is continued to be applied, so that the outer peripheral surface of the spring retaining ring 2 can be nested in the pressure groove of the collar 3 to realize assembly, and the arc groove plate 4 is disengaged from the spring retaining ring 2 after moving downward, and the arc groove plate 4 can be removed.

[0027] In order to facilitate the overlapping of the collar 3 and the arc groove plate 4, as shown in FIG. Figure 8 As shown, the outer wall at the top of each arc-shaped slot plate 4 is configured as an inclined surface structure (as shown by reference numeral 4a in the figure) embedded in the inner wall of the collar 3. The inclined surface structure facilitates the collar 3 to be sleeved on the arc-shaped slot plate 4 when moving downward, so as to realize the subsequent switching operation of the spring retaining ring 2.

[0028] In order to realize the convenience of operating the arc-shaped slot plate 4, as Figure 5-6 As shown, the arc-shaped groove plate 4 is connected to the inner side of the jaws of the articulated pliers. During assembly, the operator holds the pliers by hand and drives the symmetrical arc-shaped groove plate 4 to radially squeeze the spring retaining ring 2 through the jaws and then embed it into the groove 1a of the shaft rod 1.

[0029] Preferably, the arc-shaped groove plate 4 can be fixed (such as welded) on the jaws of the pliers body, and in order to improve the flexibility of operation, the arc-shaped groove plate 4 can be hinged on the jaws of the pliers. After the arc-shaped groove plate 4 squeezes the spring retaining ring 2, the pliers body can be rotated, thereby avoiding contact interference between the pliers body and the shaft rod 1 or the ring 3 of different structures, thereby improving the application scope of the auxiliary tool.

[0030] The principle of the present application is: during the assembly operation, the spring retaining ring 2 is first sleeved in the groove 1a of the shaft rod 1, and then the caliper body is driven so that the arc groove plate 4 drives the spring retaining ring 2 to radially contract and be pressed and embedded in the groove 1a of the shaft rod 1 and maintained, and then the collar 3 is sleeved from the end of the shaft rod 1 and continuously sleeved on the top side of the outer wall of the arc groove plate 4, and overlapped to a certain height, and the collar 3 is continued to be driven axially downward and the arc groove plate 4 is driven downward at the same time, so that the spring retaining ring 2 can be transferred from the arc groove plate 4 to the collar 3, and the axial external force is continued to be applied, so that the outer peripheral surface of the spring retaining ring 2 can be nested in the pressure groove of the collar 3 to realize assembly, and after the arc groove plate 4 moves downward and disengages from the spring retaining ring 2, the arc groove plate 4 can be removed.

[0031] The above shows and describes the basic principles, main features and advantages of the present application. Without departing from the spirit and scope of the present application, the present application may have various changes and improvements, which fall within the scope of the present application to be protected.

Claims

1. An auxiliary tool for assembling a spring retaining ring and a collar on a shaft, the shaft (1) having a groove (1a) for embedding the spring retaining ring (2), and the inner wall of the collar (3) having a pressing groove for pressing the spring retaining ring (2) in the groove (1a), characterized in that: The auxiliary tool is connected to the spring retaining ring (2) and embeds the spring retaining ring (2) and the groove (1a) into position, and the auxiliary tool transfers the spring retaining ring (2) embedded and positioned in the groove (1a) and the pressing groove of the collar (3) under the action of external force.

2. The auxiliary tool according to claim 1, characterized in that: The auxiliary tool comprises an arc-shaped groove plate (4) which is separately sleeved on the periphery of the spring retaining ring (2) and presses the spring retaining ring (2) into the groove (1a) under the drive of an external force.

3. The auxiliary tool according to claim 2, characterized in that: The top outer wall of each arc-shaped slot plate (4) is arranged as an inclined surface structure embedded in the inner wall of the collar (3).

4. The auxiliary tool according to claim 3, characterized in that: The arc-shaped groove plate (4) is connected to the inner side of the jaws of the hinged pliers body.

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