Fixing device for processing inflatable sealing element

Abstract

The fixing device comprises an L-shaped plate, a motor A is installed on the rear end face of the L-shaped plate, a rotating shaft is rotationally connected to the front end face of the motor A, a movable cavity is formed in the inner side of the rotating shaft, and four arc-shaped supporting plates are evenly and movably arranged on the outer surface of the rotating shaft through a transmission mechanism. The transmission mechanism comprises a pin shaft, the outer surface of the pin shaft is sleeved with a driving bevel gear, four driven bevel gears are evenly arranged in front of the driving bevel gear, threaded pipes are connected to the inner sides of the driven bevel gears in a welded mode, and threaded rods are arranged on the sides, opposite to each other, of the outer surfaces of the four threaded pipes. By arranging the transmission mechanism, the positions of the four arc-shaped supporting plates can be adjusted at the same time, and inflation sealing pieces of different sizes can be supported; and the two ends of the outer surface of the inflation sealing piece can be limited, and the inflation sealing piece with steps can be effectively matched.

Description

Technical Field

[0001] The utility model relates to the technical field of inflatable seal processing, in particular to a fixing device for inflatable seal processing. Background Technique

[0002] To extend the service life of motor bearings and reduce the occurrence of premature bearing failure caused by lubricant medium pollution, a bearing isolator is usually set at the bearing position, which can block the entry of external pollution into the bearing isolator to a certain extent and effectively prevent lubricant leakage. The bearing isolator is an inflatable seal, which is a complete axial seal that uses the pressure of a small amount of air, gas or water to form a positive sealing ability along the shaft rod. This unique technology constitutes a barrier that can block pollutants outside the container and avoid product contact with air.

[0003] Currently, when processing inflatable seals, generally, the rough blank is fixed on a rotating mechanism, and the inner and outer rings of the rough blank are machined by a cutting machine, and finally processed into a bearing ring.

[0004] However, the existing rotating mechanism is not convenient for fixing inflatable seals of different sizes and models, and the clamping and fixing structures on the existing rotating mechanism are generally designed for ordinary bearing rings with a smooth outer surface. When clamping and fixing a bearing ring with a stepped outer ring, problems such as falling off or unstable clamping may occur, resulting in certain risks during cutting; therefore, it does not meet the existing requirements. For this reason, we propose a fixing device for inflatable seal processing. Content of the Utility Model

[0005] The purpose of the utility model is to provide a fixing device for inflatable seal processing, so as to solve the problems proposed in the above background technique that the existing rotating mechanism is not convenient for fixing inflatable seals of different sizes and models, and the clamping and fixing structures on the existing rotating mechanism are generally designed for ordinary bearing rings with a smooth outer surface. When clamping and fixing a bearing ring with a stepped outer ring, problems such as falling off or unstable clamping may occur, resulting in certain risks during cutting, etc.

[0006] To achieve the above object, the present utility model provides the following technical solution: A fixing device for processing an inflatable seal, including an L-shaped plate, a motor A is installed on the rear end face of the L-shaped plate, a rotating shaft is rotatably connected to the front end face of the motor A, an activity cavity is arranged inside the rotating shaft, and four arc-shaped support plates are evenly and movably arranged on the outer surface of the rotating shaft through a transmission mechanism. The transmission mechanism includes a pin shaft, a driving bevel gear is sleeved on the outer surface of the pin shaft, four driven bevel gears are evenly arranged in front of the driving bevel gear, a threaded tube is welded and connected to the inside of the driven bevel gear, a threaded rod is arranged on the opposite sides of the outer surfaces of the four threaded tubes, and a fixed limiting mechanism is fixedly installed on the rear sides of the opposite sides of the outer surfaces of the four arc-shaped support plates, and a moving limiting mechanism is movably installed on the front sides of the opposite sides of the outer surfaces of the four arc-shaped support plates.

[0007] Preferably, the output end of the motor A is fixedly connected to the rear end face of the rotating shaft through a coupling. The transmission mechanism is arranged inside the activity cavity. A motor B is arranged on the front end face of the activity cavity through a motor cavity. The output end of the motor B is fixedly connected to the front end face of the pin shaft through a short shaft. The rear end face of the pin shaft is rotatably connected to the inner wall of the activity cavity through a bearing.

[0008] Preferably, the driven bevel gear meshes with the driving bevel gear. Threaded holes are arranged on the opposite sides of the outer surfaces of the four threaded tubes. The threaded rod is threadedly connected to the threaded hole. The threaded rod is rotatably connected to the outer surface of the arc-shaped support plate through a bearing. Four through holes are evenly arranged on the outer surface of the rotating shaft. The threaded rod moves inside the through hole.

[0009] Preferably, the fixed limiting mechanism includes a fixing plate. A telescopic sleeve rod A is installed on the upper end face of the fixing plate through a circular groove A. A spring A is sleeved on the outer surface of the telescopic sleeve rod A. A pressing plate A is fixedly installed on the upper end faces of the spring A and the telescopic sleeve rod A.

[0010] Preferably, the opposite sides of the outer surfaces of the four fixing plates are fixedly connected to the outer surface of the rotating shaft. The telescopic sleeve rod A includes a thick sleeve A and a thin sleeve rod A. The thin sleeve rod A is inserted into the inside of the thick sleeve A.

[0011] Preferably, the moving limiting mechanism includes a vertical plate and a horizontal groove. A telescopic sleeve rod B is installed on the upper end face of the vertical plate through a circular groove B. A spring B is sleeved on the outer surface of the telescopic sleeve rod B. A pressing plate B is fixedly installed on the upper end faces of the telescopic sleeve rod B and the spring B. The horizontal groove is arranged on the outer surface of the arc-shaped support plate through a lead screw. A threaded block is sleeved on the outer surface of the horizontal groove.

[0012] Preferably, the outer surface of the threaded block is fixedly connected to the outer surface of the vertical plate. The telescopic rod B includes a thick sleeve B and a thin rod B. The thin rod B is inserted into the inner side of the thick sleeve B. In front of the lead screw, a motor C is installed through a cavity. The output end of the motor C is fixedly connected to the front end surface of the horizontal groove through a connecting shaft. The rear end surface of the horizontal groove is rotatably connected to the inner wall of the lead screw through a bearing.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. By providing a transmission mechanism and an arc-shaped support plate, when the motor B works, it can drive the pin shaft to rotate. When the pin shaft rotates to drive the driving bevel gear to rotate, it can drive the driven bevel gear to rotate, drive the threaded tube to rotate, and then drive the threaded rod to extend out in the threaded hole cavity of the threaded tube, drive the threaded rod to extend outwards inside the through hole, and then drive the four arc-shaped support plates to extend outwards simultaneously until the outer surface of the arc-shaped support plate contacts the inner surface of the inflatable seal, so as to support the inflatable seal. By providing a transmission mechanism, the present utility model can adjust the positions of the four arc-shaped support plates simultaneously to support inflatable seals of different sizes.

[0015] 2. By providing a fixed limit mechanism and a moving limit mechanism, the rear end surface of the inflatable seal contacts the front end surface of the fixed plate. Under the action of the spring A and the telescopic rod A, the pressing plate A limits one end of the outer surface of the inflatable seal. The vertical plate can move back and forth under the action of the threaded block and contacts the front end surface of the vertical plate. Under the action of the spring B and the telescopic rod B, the pressing plate B limits the other end of the outer surface of the inflatable seal, which can effectively adapt to the stepped inflatable seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the whole of the present utility model;

[0017] Figure 2 is a main sectional view of the whole of the present utility model;

[0018] Figure 3 is a partial structural diagram of the transmission mechanism of the present utility model;

[0019] Figure 4 is a side view of the whole of the present utility model;

[0020] Figure 5 is a partial structural diagram of the moving limit mechanism of the present utility model.

[0021] In the figure: 1. L-shaped plate; 2. Rotating shaft; 3. Arc-shaped support plate; 4. Fixed limiting mechanism; 401. Fixed plate; 402. Spring A; 403. Telescopic sleeve rod A; 404. Pressing plate A; 5. Activity cavity; 6. Transmission mechanism; 601. Driven bevel gear; 602. Driving bevel gear; 603. Pin shaft; 604. Threaded tube; 605. Threaded rod; 606. Through hole; 7. Motor A; 8. Moving limiting mechanism; 801. Pressing plate B; 802. Telescopic sleeve rod B; 803. Spring B; 804. Vertical plate; 805. Horizontal groove; 806. Threaded block; 807. Lead screw. Specific implementation mode

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0023] The motor A7 (model YEJ3-112M-4), motor B (model 68KTYZ), and motor C (model 68KTYZ) mentioned in the present invention can all be obtained by purchasing from the market or customizing privately.

[0024] Please refer to Figures 1 to 5 , an embodiment provided by the present invention: A fixing device for processing inflatable seals, including an L-shaped plate 1. A motor A7 is installed on the rear end face of the L-shaped plate 1. The front end face of the motor A7 is rotatably connected to a rotating shaft 2. An activity cavity 5 is arranged inside the rotating shaft 2. Four arc-shaped support plates 3 are evenly and movably arranged on the outer surface of the rotating shaft 2 through a transmission mechanism 6. The transmission mechanism 6 includes a pin shaft 603. A driving bevel gear 602 is sleeved on the outer surface of the pin shaft 603. Four driven bevel gears 601 are evenly arranged in front of the driving bevel gear 602. A threaded tube 604 is welded and connected to the inside of the driven bevel gear 601. Threaded rods 605 are arranged on the opposite sides of the outer surfaces of the four threaded tubes 604. Fixed limiting mechanisms 4 are fixedly installed on the rear sides of the opposite sides of the outer surfaces of the four arc-shaped support plates 3. Moving limiting mechanisms 8 are movably installed on the front sides of the opposite sides of the outer surfaces of the four arc-shaped support plates 3.

[0025] Furthermore, the output end of the motor A7 is fixedly connected to the rear end face of the rotating shaft 2 through a coupling. The transmission mechanism 6 is arranged inside the activity cavity 5. A motor B is arranged on the front end face of the activity cavity 5 through a motor cavity. The output end of the motor B is fixedly connected to the front end face of the pin shaft 603 through a short shaft. The rear end face of the pin shaft 603 is rotatably connected to the inner wall of the activity cavity 5 through a bearing. When the motor A7 works, it can drive the rotating shaft 2 to rotate. When the motor B works, it can drive the pin shaft 603 to rotate.

[0026] The driven bevel gear 601 meshes with the driving bevel gear 602. Threaded holes are provided on the opposite sides of the outer surfaces of the four threaded pipes 604. The threaded rod 605 is threadedly connected to the threaded holes. The threaded rod 605 is rotatably connected to the outer surface of the arc-shaped support plate 3 through a bearing. Four through holes 606 are evenly provided on the outer surface of the rotating shaft 2. The threaded rod 605 moves inside the through holes 606. When the driving bevel gear 602 rotates, it can drive the driven bevel gear 601 to rotate, drive the threaded pipe 604 to rotate, thereby driving the threaded rod 605 to extend out of the threaded hole cavity of the threaded pipe 604, drive the threaded rod 605 to extend outwards inside the through holes 606, and thus drive the four arc-shaped support plates 3 to extend outwards simultaneously.

[0027] The fixed limit mechanism 4 includes a fixed plate 401. The upper end surface of the fixed plate 401 is provided with a telescopic sleeve rod A 403 through a circular groove A. A spring A 402 is sleeved on the outer surface of the telescopic sleeve rod A 403. The upper end surfaces of the spring A 402 and the telescopic sleeve rod A 403 are fixedly installed with a pressing plate A 404. The pressing plate A 404 can clamp the outer surface of the inflatable seal under the action of the telescopic sleeve rod A 403 and the spring A 402.

[0028] One side of the outer surfaces of the four fixed plates 401 opposite to each other is fixedly connected to the outer surface of the rotating shaft 2. The telescopic sleeve rod A 403 includes a thick sleeve A and a thin sleeve rod A. The thin sleeve rod A is inserted into the inside of the thick sleeve A to improve the connection stability between the fixed plate 401 and the telescopic sleeve rod A 403.

[0029] The moving limit mechanism 8 includes a vertical plate 804 and a horizontal groove 805. The upper end surface of the vertical plate 804 is provided with a telescopic sleeve rod B 802 through a circular groove B. A spring B 803 is sleeved on the outer surface of the telescopic sleeve rod B 802. The upper end surfaces of the telescopic sleeve rod B 802 and the spring B 803 are fixedly installed with a pressing plate B 801. The horizontal groove 805 is arranged on the outer surface of the arc-shaped support plate 3 through a lead screw 807. A threaded block 806 is sleeved on the outer surface of the horizontal groove 805. The pressing plate B 801 can clamp the outer surface of the inflatable seal under the action of the telescopic sleeve rod B 802 and the spring B 803.

[0030] The outer surface of the threaded block 806 is fixedly connected to the outer surface of the vertical plate 804. The telescopic sleeve rod B 802 includes a thick sleeve B and a thin sleeve rod B. The thin sleeve rod B is inserted into the inside of the thick sleeve B. A motor C is installed in front of the lead screw 807 through a cavity. The output end of the motor C is fixedly connected to the front end surface of the horizontal groove 805 through a connecting shaft. The rear end surface of the horizontal groove 805 is rotatably connected to the inner wall of the lead screw 807 through a bearing to improve the connection stability of the telescopic sleeve rod B 802. The movement of the threaded block 806 can drive the vertical plate 804 to move.

[0031] When the fixing device for processing the inflatable seal is in use, by setting a transmission mechanism 6 and an arc-shaped support plate 3, when the motor B works, it can drive the pin shaft 603 to rotate. When the pin shaft 603 rotates to drive the driving bevel gear 602 to rotate, it can drive the driven bevel gear 601 to rotate, drive the threaded tube 604 to rotate, and then drive the threaded rod 605 to extend out in the threaded hole cavity of the threaded tube 604, drive the threaded rod 605 to extend outwards inside the through hole 606, so as to drive the four arc-shaped support plates 3 to extend outwards at the same time until the outer surface of the arc-shaped support plate 3 contacts the inner surface of the inflatable seal to support the inflatable seal. And by setting a fixed limit mechanism 4 and a moving limit mechanism 8, the rear end surface of the inflatable seal contacts the front end surface of the fixed plate 401. Under the action of the spring A 402 and the telescopic sleeve rod A 403, the pressing plate A 404 limits one end of the outer surface of the inflatable seal. The vertical plate 804 can move back and forth under the action of the threaded block 806 and contacts the front end surface of the vertical plate 804. Under the action of the spring B 803 and the telescopic sleeve rod B 802, the pressing plate B 801 limits the other end of the outer surface of the inflatable seal. By setting a transmission mechanism 6, the utility model can adjust the positions of the four arc-shaped support plates 3 at the same time to support inflatable seals of different sizes; and can limit the two ends of the outer surface of the inflatable seal, and can effectively adapt to the stepped inflatable seal.

[0032] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes falling within the meaning and scope of the equivalent elements of the claims in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A fixing device for processing an inflatable seal, comprising an L-shaped plate (1), characterized in that: A motor A (7) is mounted on the rear end surface of the L-shaped plate (1), and a rotating shaft (2) is rotatably connected to the front end surface of the motor A (7). A movable cavity (5) is arranged on the inner side of the rotating shaft (2). Four arc-shaped support plates (3) are evenly and movably arranged on the outer surface of the rotating shaft (2) through a transmission mechanism (6). The transmission mechanism (6) comprises a pin shaft (603). A driving bevel gear (602) is sleeved on the outer surface of the pin shaft (603). Four driven bevel gears (601) are evenly arranged in front of the driving bevel gear (602). A threaded tube (604) is welded to the inner side of the driven bevel gear (601). A threaded rod (605) is arranged on the opposite side of the outer surface of the four threaded tubes (604). A fixed limiting mechanism (4) is fixedly mounted on the rear side of the opposite side of the outer surface of the four arc-shaped support plates (3), and a movable limiting mechanism (8) is movably mounted on the front side of the opposite side of the outer surface of the four arc-shaped support plates (3).

2. A fixing device for processing an inflatable seal according to claim 1, characterized in that: The output end of the motor A (7) is fixedly connected to the rear end face of the rotating shaft (2) via a coupling, the transmission mechanism (6) is arranged on the inner side of the movable cavity (5), the front end face of the movable cavity (5) is provided with a motor B via a motor cavity, the output end of the motor B is fixedly connected to the front end face of the pin shaft (603) via a short shaft, and the rear end face of the pin shaft (603) is rotatably connected to the inner wall of the movable cavity (5) via a bearing.

3. The fixing device for processing an inflatable seal according to claim 1, characterized in that: The driven bevel gear (601) is meshed with the driving bevel gear (602); a threaded hole is provided on the opposite side of the outer surface of the four threaded tubes (604); the threaded rod (605) is threadedly connected to the threaded hole; the threaded rod (605) is rotatably connected to the outer surface of the arc-shaped support plate (3) via a bearing; the outer surface of the rotating shaft (2) is evenly provided with four through holes (606); the threaded rod (605) moves inside the through holes (606).

4. The fixing device for processing an inflatable seal according to claim 1, characterized in that: The fixed limiting mechanism (4) comprises a fixed plate (401), a retractable sleeve rod A (403) being mounted on the upper end surface of the fixed plate (401) through a circular groove A, a spring A (402) being sleeved on the outer surface of the retractable sleeve rod A (403), and a pressing plate A (404) being fixedly mounted on the upper end surface of the spring A (402) and the retractable sleeve rod A (403).

5. A fixing device for processing an inflatable seal according to claim 4, characterized in that: One side of the outer surface of the four fixed plates (401) opposite to each other is fixedly connected to the outer surface of the rotating shaft (2); the telescopic sleeve rod A (403) comprises a thick sleeve tube A and a thin sleeve rod A; the thin sleeve rod A is inserted into the inner side of the thick sleeve tube A.

6. The fixing device for processing an inflatable seal according to claim 1, characterized in that: The movable limiting mechanism (8) comprises a vertical plate (804) and a horizontal groove (805); a telescopic sleeve rod B (802) is mounted on the upper end surface of the vertical plate (804) through a circular groove B; a spring B (803) is sleeved on the outer surface of the telescopic sleeve rod B (802); a pressing plate B (801) is fixedly mounted on the upper end surfaces of the telescopic sleeve rod B (802) and the spring B (803); the horizontal groove (805) is arranged on the outer surface of the arc-shaped support plate (3) through a screw rod (807); and a threaded block (806) is sleeved on the outer surface of the horizontal groove (805).

7. A fixing device for processing an inflatable seal according to claim 6, characterized in that: The outer surface of the threaded block (806) is fixedly connected to the outer surface of the vertical plate (804); the telescopic sleeve rod B (802) comprises a thick sleeve tube B and a thin sleeve rod B, the thin sleeve rod B is inserted into the inner side of the thick sleeve tube B, a motor C is installed in front of the screw rod (807) through a cavity, the output end of the motor C is fixedly connected to the front end surface of the transverse groove (805) through a connecting shaft, and the rear end surface of the transverse groove (805) is rotatably connected to the inner wall of the screw rod (807) through a bearing.

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