Mounting tool for elastic sealing ring for shaft

Abstract

The utility model provides a mounting tool for an elastic sealing ring for a shaft. The mounting tool comprises a fixing frame; the supporting cylinder is divided into a first arc section and a second arc section in the circumferential direction; the first bracket is used for fixing the first arc flap and is connected to the fixing frame; the first support is used for fixing the first arc flap, the second support is used for fixing the second arc flap, the second support is connected to the fixing frame, and at least one of the first support and the second support is slidably connected with the fixing frame in the first direction so as to adjust the distance between the first arc flap and the second arc flap; the installation tool for the elastic sealing ring for the shaft is simple in structure, can be applied to shafts and elastic sealing rings with different diameter sizes, and is better in adaptation effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of auxiliary assembly, and in particular relates to an installation tool for an elastic sealing ring for a shaft. Background Art

[0002] Elastic sealing rings for shafts are commonly used components in industrial products. The current method is to put the sealing ring on the mandrel and use a punch to press the sealing ring into the groove of the shaft. The mandrel of this tooling matches the required size of the shaft and is only suitable for large-scale, single-size production and installation.

[0003] Therefore, it is necessary to design an elastic sealing ring installation tool for a shaft to adapt to shafts of a wider size. Utility Model Content

[0004] Aiming at some or all of the above technical problems existing in the prior art, the utility model proposes a shaft elastic sealing ring installation tool. The shaft elastic sealing ring installation tool has a simple structure and can be applied to shafts and elastic sealing rings of different diameters, with better adaptation effect.

[0005] According to the utility model, a shaft elastic sealing ring installation tool is provided, comprising:

[0006] Fixed bracket,

[0007] The support tube is divided into a first arc petal and a second arc petal in the circumferential direction.

[0008] a first bracket for fixing the first arc petal, the first bracket being connected to the fixing frame,

[0009] A second bracket for fixing the second arc petal, the second bracket is connected to the fixing frame, and at least one of the first bracket and the second bracket is slidably connected to the fixing frame in a first direction to adjust the distance between the first arc petal and the second arc petal, and the first direction is consistent with a radial direction of the support tube.

[0010] In one embodiment, the fixing frame is constructed as a U-shaped frame and includes a first side and second sides respectively arranged on both sides of the first side, the second side extends along a first direction, the first bracket is constructed as a square frame and partially extends into the U-shaped groove of the fixing frame, the first bracket includes two third sides arranged relative to the first side and two fourth sides fixed between the two third sides and arranged parallel to the second sides, a mounting block is fixedly arranged on each of the second sides, each of the fourth sides passes through the mounting block on the corresponding side in a gap manner, and a first extension piece extending along the first direction is arranged on the third side away from the first side, and the first arc petal is fixed to the first extension piece.

[0011] In one embodiment, an operating rod is fixedly arranged on the third side close to the first side, and the operating rod passes through the first side in a gap manner.

[0012] In one embodiment, the second bracket is constructed as a U-shaped structure and includes a fifth side relatively spaced from the third side and a sixth side respectively arranged on both sides of the fifth side, the second bracket is located in the cavity of the first bracket, each of the fifth sides gap-through the mounting block on at least a portion of the corresponding side, a second extension member extending along the first direction is arranged on the fifth side, and the second arc petal is fixed to the second extension member.

[0013] In one embodiment, a synchronous motion component is arranged between the fourth side and the sixth side on the same side, and the synchronous motion component includes two racks and a gear meshingly arranged between the racks, the racks are respectively fixed to the fourth side and the sixth side, and the gear is rotatably connected to the mounting block.

[0014] In one embodiment, a first elastic member is sleeved on the operating rod, and two ends of the first elastic member are elastically abutted against the first side and the third side close to the first side respectively; a second elastic member is arranged between the fifth side and the third side close to the first side, and two ends of the second elastic member are elastically abutted against the fifth side and the third side close to the first side respectively.

[0015] In one embodiment, an extension rod extending toward the third side close to the first side is fixedly provided on the fifth side, a free end of the extension rod is spaced from the third side close to the first side, and the second elastic member is sleeved on the extension rod.

[0016] In one embodiment, the first arc petal and the second arc petal are symmetrical about a second direction, and the second direction is consistent with a radial direction of the support tube and is perpendicular to the first direction.

[0017] In one embodiment, arc segments of the free ends of the first arc petal and the second arc petal are configured as outwardly convex arc segments.

[0018] In one embodiment, a recess is provided on the side of the first side close to the third side, and the number of the recesses is two and they are spaced apart and distributed on both sides of the operating rod.

[0019] Compared with the prior art, the advantages of the utility model are that the support tube of the shaft elastic sealing ring installation tool is composed of a first arc petal and a second arc petal, and the first arc petal and the second arc petal can be fixed by a first bracket and a second bracket respectively, and one of the first bracket and the second bracket drives the corresponding arc petal to move, so that the radial size of the support tube can be changed, and then the support tube can be sleeved on shafts of different sizes to complete the installation of the elastic sealing ring, thereby improving the adaptability of the shaft elastic sealing ring installation tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, in which:

[0021] Figure 1 A shaft elastic sealing ring installation tool according to an embodiment of the utility model is shown;

[0022] Figure 2 For Figure 1 AA section view.

[0023] In the drawings, the same reference numerals are used for the same components. The drawings are not drawn to scale. DETAILED DESCRIPTION

[0024] In order to make the technical solutions and advantages of the present invention more clearly understood, the exemplary embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than an exhaustive list of all embodiments. In addition, the embodiments of the present invention and the features in the embodiments can be combined with each other if there is no conflict.

[0025] The embodiment of the utility model provides a shaft elastic sealing ring installation tool 100. Figure 1 and 2As shown, the elastic sealing ring installation tool 100 for the shaft includes a fixing frame 1, a supporting tube 2, a first bracket 3 and a second bracket 4. Among them, the fixing frame 1 is a basic component, which mainly plays the role of fixing and limiting other components. The supporting tube 2 is constructed as a split structure, and is divided into a first arc petal 21 and a second arc petal 22 in the circumferential direction. During use, the outer wall of the supporting tube 2 is used to sleeve the elastic sealing ring, and the inner wall is used to sleeve onto the shaft, so as to transport the elastic sealing ring to the installation position of the shaft. The first bracket 3 is used to fix the first arc petal 21, and at the same time, the first bracket 3 is connected to the fixing frame 1. The second bracket 4 is used to fix the second arc petal 22, and at the same time, the second bracket 4 is connected to the fixing frame 1. According to the present application, at least one of the first bracket 3 and the second bracket 4 is slidably connected to the fixing frame 1 in the first direction to adjust the distance between the first arc petal 21 and the second arc petal 22, thereby completing the installation of the elastic sealing ring and other operations. It should be noted that the first direction is consistent with a radial direction of the supporting tube 2, and in Figure 1 , the first direction coincides with the left-right direction.

[0026] Thus, during the use of the shaft elastic sealing ring installation tool 100, the distance between the first arc petal 21 and the second arc petal 22 can be reduced so that the elastic sealing ring can be easily sleeved on the outer wall of the support tube 2, and then the distance between the first arc petal 21 and the second arc petal 22 can be increased to ensure that the elastic sealing ring is stably arranged on the outer wall of the support tube 2. The shaft elastic sealing ring installation tool 100 drives the elastic sealing ring to move close to the shaft to be installed with the elastic sealing ring, and allows the support tube 2 to be sleeved on the outer wall of the shaft to send the elastic sealing ring to the installation position. In the process of the support tube 2 sleeved shaft, the distance between the first arc petal 21 and the second arc petal 22 can be increased so that the shaft can be more smoothly inserted into the inner cavity of the support tube 2. Finally, let the elastic sealing ring fall on the shaft. In the process of unloading the elastic sealing ring from the support tube 2, it can be done manually by external force such as tweezers, or the distance between the first arc petal 21 and the second arc petal 22 can be reduced so that the elastic sealing ring can fall off better.

[0027] In one example, the fixing frame 1 is constructed in a U-shaped frame shape. The fixing frame 1 includes a first side 11 and second sides 12 respectively arranged on both sides of the first side 11. After installation, the second side 12 extends along the first direction. The fixing frame 1 can be formed by bending a pipe or a plate. The fixing frame 1 of this structure is simple in structure and easy to implement.

[0028] The first bracket 3 is constructed in a square frame shape. After installation, the first bracket 3 partially extends into the U-shaped groove of the fixing frame 1. Structurally, the first bracket 3 includes two third sides 31 and two fourth sides 32. After installation, the two third sides 31 are arranged relative to the first side 11 at intervals. The fourth side 32 is fixed between the two third sides 31 and is arranged parallel to the second side 12 after installation. It is easy to understand that the two ends of each third side 31 are connected to the fourth side 32, and the two ends of each fourth side 32 are connected to the third side 31 to form a square frame structure. The first bracket 3 can be formed by bending and connecting a pipe or a plate.

[0029] A mounting block 13 is fixedly mounted on each second side 12. After installation, each fourth side 32 passes through the mounting block 13 on the corresponding side in a gap manner, so that the fourth side 32 can move relative to the fixing frame 1 in the first direction. Figure 1 A first extension piece 33 is provided on the third side 31 located on the left side of the first arc 21 , and the first extension piece 33 extends along the first direction. The first arc petal 21 is fixedly provided on the first extension piece 33 .

[0030] The above structure is simple and easy to implement. In particular, it can ensure that the fourth side 32 can move in the first direction, thereby driving the first arc petal 21 to move in the first direction, thereby approaching or moving away from the second arc petal 22, and then adjusting the inner cavity size of the support tube 2 in the first direction.

[0031] An operating rod 34 is fixedly provided on the third side 31 close to the first side 11. The operating rod 34 passes through the first side 11 in a gap manner. In the process of using the shaft elastic sealing ring installation tool 100, the operating rod 33 can be urged to move along the first direction by pressing the operating rod 34, thereby driving the first bracket 3 to move along the first direction. In this process, the third side 31 is away from the first side 11, which drives the first arc petal 21 to move in the first direction. Conversely, when the operating rod 34 is pulled, the operating rod 33 is urged to move along the first direction, thereby driving the first bracket 3 to move along the first direction, and the first arc petal 21 can also be driven to move in the first direction. It can be seen that by setting the operating rod 34, it is convenient to apply force to the first bracket 3, actuate the first arc petal 21 to move in the first direction, and then help to realize the opening and closing of the first arc petal 21 relative to the second arc petal 22.

[0032] In order to optimize the structure, the second bracket 4 is also constructed as a U-shaped structure. The second bracket 4 includes a fifth side 41 and a sixth side 42. There are two sixth sides 42, which are respectively arranged on both sides of the fifth side. After installation, the fifth side 41 is relatively spaced from the third side 31. The second bracket 4 is located in the cavity of the first bracket 3. Each fifth side 41 passes through the mounting block 13 of at least part of the corresponding side in a gap manner. In other words, the fifth side 41 and the fixing member 1 can also be slidably connected in the first direction. A second extension member 43 extending along the first direction is arranged on the fifth side 41. The second arc petal 22 is fixedly arranged on the second extension member 43. The second bracket 4 can be made of a pipe or a plate.

[0033] A synchronous motion assembly is provided between the fourth side 32 and the sixth side 42 on the same side. Specifically, the synchronous motion assembly includes two racks 51 and a gear 52 meshingly arranged between the racks 51. The racks 51 are fixed to the fourth side 32 and the sixth side 42, respectively. The gear 52 is rotatably connected to the mounting block 13. The synchronous motion assembly can ensure that the first bracket 3 and the second bracket 4 move simultaneously. For example, in the process of pressing the operating rod 34, the fourth side 32 slides relative to the fixed frame 1 and moves in a direction away from the first side 11, thereby driving the first arc petal 21 to move in a direction away from the first side 11. In the process of the fourth side 32 sliding relative to the fixed frame 1, the rack 51 fixed to the fourth side 32 is driven to move synchronously, and the moving rack 51 actuates the gear 52 to rotate, thereby actuating the rack 51 arranged on the sixth side 42 to move in the opposite direction, and driving the sixth side 42 to move in a direction close to the first side 11. In this process, the first arc petal 21 and the second arc petal 22 move in opposite directions, actuating the support tube 2 to perform an opening operation. It is easy to understand that when the operating rod 34 is pulled, the first arc petal 21 and the second arc petal 22 can move toward each other, prompting the support tube 2 to close. It can be seen that by setting a synchronous motion component, the first arc petal 21 and the second arc petal 22 can be driven to move simultaneously, thereby operating more smoothly.

[0034] In addition, a first elastic member 35 is sleeved on the operating rod 34. The two ends of the first elastic member 35 are elastically abutted against the first side 11 and the third side 31 close to the first side 11, respectively. Preferably, the first elastic member 35 is a spring. At the same time, an extension rod 44 is fixedly arranged on the fifth side 41. The free end of the extension rod 44 is spaced from the third side 31 close to the first side 11, so as to leave a movement amount for the second bracket 4, so that the first bracket 3 and the second bracket 4 do not interfere with each other during movement. A second elastic member 45 is sleeved on the extension rod 44. For example, the second elastic member 45 is a spring. The two ends of the second elastic member 45 are elastically abutted against the fifth side 41 and the third side 31 close to the first side 11, respectively. The elastic abutment described here means that the first elastic member 35 and the second elastic member 45 are both installed in a compression manner, and are always in a compressed state on the shaft elastic sealing ring installation tool 100. When the operating rod 34 is pressed, the operating rod 34 actuates the first bracket 3 to move relative to the fixed frame 1, and then drives the second bracket 4 to move through the synchronous motion assembly, so that the third side 31 is away from the first side 11, and at the same time, the distance between the fifth side 41 and the third side 31 close to the first side 11 gradually decreases. Therefore, in the process of pressing the operating rod 34, the second elastic member 45 is further compressed, and then after the operating rod 34 is released, the elastic energy accumulated by the second elastic member 45 actuates the first bracket 3 to reset, and in the process of resetting the first bracket 3, the first elastic member 35 is further compressed. When the second elastic member 45 and the first elastic member 35 at both ends of the third side 31 close to the first side 11 are balanced, the first bracket 3 and the second bracket 4 are completely reset to the initial state. On the contrary, when the operating rod 34 is pulled, the operating rod 34 actuates the first bracket 3 to move relative to the fixed frame 1, and then drives the second bracket 4 to move through the synchronous motion assembly, so that the third side 31 is close to the first side 11, and at the same time, the distance between the fifth side 41 and the third side 31 close to the first side 11 gradually increases. Thus, in the process of pulling the operating rod 34, the first elastic member 35 is further compressed, and then after releasing the operating rod 34, the first elastic member 35 provides a force to move the third side 31 close to the first side 11 away from the first side 11, until the first elastic member 35 and the second elastic member 45 at both ends of the third side 31 close to the first side 11 make the first bracket 3 stationary relative to the fixed frame 1. It can be seen that by providing the first elastic member 35 and the second elastic member 45, the automatic resetting of the first bracket 3 and the second bracket 4 can be ensured. In the present application, the first arc petal 21 and the second arc petal 22 are symmetrical about the second direction. The second aspect is consistent with a radial direction of the support tube 2 and is perpendicular to the first direction. In Figure 1 In the embodiment, the second direction is consistent with the up-down direction. That is, the first arc petal 21 and the second arc petal 22 are both constructed in a substantially semi-cylindrical shape. This arrangement is simple in structure and easy to implement.

[0035] Preferably, the arc segments of the free ends of the first arc petal 21 and the second arc petal 22 are constructed as convex arc segments 23. This arrangement can ensure that the support tube 2 expands outward at this location, thereby supporting the elastic sealing ring outward, making it easier to sleeve the support tube 2 onto the shaft. Figure 1 In the example, it can be ensured that the elastic sealing ring is supported in four directions: up, down, left and right.

[0036] A recess 14 is provided on the side of the first side 11 close to the third side 31. There are two recesses 14, which are spaced apart on both sides of the operating rod 34. The recesses 14 can be provided to position the operator's hand, and then place the operator's fingers on the recesses 14, which is convenient for the operator to operate.

[0037] During the use of the shaft elastic sealing ring installation tool, the elastic sealing ring is first sleeved on the outer wall of the support tube 2. If the first arc petal 21 and the second arc petal 22 are not completely closed in the first direction in the initial state, the operating rod 34 can be pulled to make the first arc petal 21 and the second arc petal 22 move toward each other, prompting the support tube 2 to close. At this time, the elastic sealing ring can be conveniently sleeved on the outer wall of the support tube 2. Of course, regardless of whether the first arc petal 21 and the second arc petal 22 are closed in the initial state, if the size of the elastic sealing ring is larger than the size of the support tube 2, then the elastic sealing ring is easily sleeved on the support tube 2, and the operation of pulling the operating rod 34 is omitted. It can be understood that the first arc petal 21 and the second arc petal 22 are constructed according to actual needs to be in a closed state of mutual abutment in the initial state, or in a non-closed state at a certain distance.

[0038] Then, by moving the shaft elastic sealing ring installation tool, the elastic sealing ring is driven close to the shaft. Of course, during this movement, in order to ensure that the elastic sealing ring is stably set on the support tube 2, the pulling force can be unloaded when the pulling force is applied, so that the support tube 2 moves in the direction of restoring the initial position, driving the elastic sealing ring to open. It is even possible to press the operating rod 34 so that the first arc petal 21 and the second arc petal 22 move in opposite directions, prompting the support tube 2 to open. This process can ensure that the elastic sealing ring does not fall off.

[0039] Afterwards, the support tube 2 is sleeved onto the shaft on which the elastic sealing ring is to be installed. During this process, the operating rod 34 can be pressed to make the first arc petal 21 and the second arc petal 22 move in opposite directions, thereby urging the support tube 2 to open and ensure that the shaft is smoothly inserted into the support tube 2.

[0040] Finally, the elastic sealing ring is removed from the support tube 2 to be sleeved on the shaft, and the sleeve connection between the support tube 2 and the shaft is released. In this process, the elastic sealing ring can be removed from the support tube 2 to be sleeved on the shaft by external force, such as hand pushing or using tools such as tweezers. As long as the force applied to the operating rod 34 is unloaded, the first arc petal 21 and the second arc petal 22 will return to the initial state. At this point, the operation of installing the elastic sealing ring on the shaft is completed.

[0041] It can be seen that in the present application, since the elastic sealing ring is carried by the support tube 2, and the support tube 2 is a split-petal type, the support tube 2 can be sleeved onto shafts of different diameters. The elastic sealing ring has a certain elasticity, and elastic seals of various diameters can be adapted to the support tube 2. Therefore, the shaft elastic sealing ring installation tool of the present application should have a wider range. In addition, the shaft elastic sealing ring installation tool of the present application has a simple structure, is easy to carry, and is easy to operate.

[0042] Although the preferred embodiments of the utility model have been described, those skilled in the art may make additional changes and modifications to these embodiments once they are aware of the basic creative concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and / or modifications that fall within the scope of the utility model, and changes and / or modifications made according to the embodiments of the utility model should be included within the scope of protection of the utility model.

Claims

1. A shaft elastic sealing ring installation tool, characterized in that: include: Fixed bracket, The support tube is divided into a first arc petal and a second arc petal in the circumferential direction. a first bracket for fixing the first arc petal, the first bracket being connected to the fixing frame, A second bracket for fixing the second arc petal, the second bracket is connected to the fixing frame, and at least one of the first bracket and the second bracket is slidably connected to the fixing frame in a first direction to adjust the distance between the first arc petal and the second arc petal, and the first direction is consistent with a radial direction of the support tube.

2. The shaft elastic sealing ring installation tool according to claim 1, characterized in that: The fixing frame is constructed as a U-shaped frame and includes a first side and second sides respectively arranged on both sides of the first side, the second sides extend along the first direction, the first bracket is constructed as a square frame and partially extends into the U-shaped groove of the fixing frame, the first bracket includes two third sides arranged relatively spaced from the first side and two fourth sides fixed between the two third sides and arranged parallel to the second sides, a mounting block is fixedly arranged on each of the second sides, each of the fourth sides passes through the mounting block on the corresponding side in a gap manner, a first extension piece extending along the first direction is arranged on the third side away from the first side, and the first arc petal is fixedly arranged on the first extension piece.

3. The shaft elastic sealing ring installation tool according to claim 2, characterized in that: An operating rod is fixedly arranged on the third side close to the first side, and the operating rod passes through the first side in a gap manner.

4. The shaft elastic sealing ring installation tool according to claim 3, characterized in that: The second bracket is constructed as a U-shaped structure and includes a fifth side relatively spaced from the third side and a sixth side respectively arranged on both sides of the fifth side. The second bracket is located in the cavity of the first bracket, and each of the fifth sides passes through the mounting block on at least a portion of the corresponding side in a gap-like manner. A second extension piece extending along the first direction is arranged on the fifth side, and the second arc petal is fixedly arranged on the second extension piece.

5. The shaft elastic sealing ring installation tool according to claim 4, characterized in that: A synchronous motion component is arranged between the fourth side and the sixth side on the same side, and the synchronous motion component includes two racks and a gear meshingly arranged between the racks, the racks are respectively fixed to the fourth side and the sixth side, and the gear is rotatably connected to the mounting block.

6. The elastic sealing ring installation tool for shaft according to claim 5, characterized in that: A first elastic member is sleeved on the operating rod, and two ends of the first elastic member are elastically abutted against the first side and the third side close to the first side respectively. A second elastic member is arranged between the fifth side and the third side close to the first side, and two ends of the second elastic member are elastically abutted against the fifth side and the third side close to the first side respectively.

7. The shaft elastic sealing ring installation tool according to claim 6, characterized in that: An extension rod extending toward the third side close to the first side is fixedly arranged on the fifth side, a free end of the extension rod is spaced from the third side close to the first side, and the second elastic member is sleeved on the extension rod.

8. The elastic sealing ring installation tool for shaft according to any one of claims 1 to 7, characterized in that: The first arc petal and the second arc petal are symmetrical about a second direction, and the second direction is consistent with a radial direction of the support tube and is perpendicular to the first direction.

9. The shaft elastic sealing ring installation tool according to claim 8, characterized in that: The arc segments of the free ends of the first arc petal and the second arc petal are configured as outwardly convex arc segments.

10. The elastic sealing ring installation tool for shaft according to any one of claims 3 to 7, characterized in that: A concave portion is arranged on the side of the first side close to the third side, and the number of the concave portions is two and they are distributed at intervals on both sides of the operating rod.

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