CN215673872U - Switching hand wheel mechanism of pneumatic actuator - Google Patents
Switching hand wheel mechanism of pneumatic actuator Download PDFInfo
- Publication number
- CN215673872U CN215673872U CN202122344987.7U CN202122344987U CN215673872U CN 215673872 U CN215673872 U CN 215673872U CN 202122344987 U CN202122344987 U CN 202122344987U CN 215673872 U CN215673872 U CN 215673872U
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- Prior art keywords
- worm
- hand wheel
- pneumatic actuator
- eccentric
- limiting
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- 230000007246 mechanism Effects 0.000 title claims abstract description 17
- 230000000087 stabilizing effect Effects 0.000 claims description 10
- 230000000694 effects Effects 0.000 abstract description 7
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000003014 reinforcing effect Effects 0.000 abstract description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 6
- 235000017491 Bambusa tulda Nutrition 0.000 description 6
- 241001330002 Bambuseae Species 0.000 description 6
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 6
- 239000011425 bamboo Substances 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model provides a hand wheel switching mechanism of a pneumatic actuator, which comprises a box body and a hand wheel, wherein the hand wheel is positioned at the outer side position of the box body, a rotating structure is embedded in the box body and comprises a worm and an eccentric half shaft, the worm is embedded in the eccentric half shaft, two ends of the worm are sleeved with positioning bearings, two ends of the eccentric half shaft are fixedly provided with positioning rod cylinders, the surfaces of the positioning rod cylinders are fixedly provided with limiting grooves, and the bottom end of the box body is fixedly connected with a mounting block. Through the use rotation flexibility and the stability of location bearing reinforcing worm, simultaneously effectually avoided eccentric semi-axis to be driven by the worm to rotate and lead to the worm to be taken place by the dead condition of eccentric semi-axis card, effectively reduced the wearing and tearing between worm and the eccentric semi-axis, prolonged both life, reach the effect with gag lever post looks gomphosis through the spacing groove.
Description
Technical Field
The utility model relates to the technical field of pneumatic actuators, in particular to a switching hand wheel mechanism of a pneumatic actuator.
Background
A switching hand wheel mechanism in an existing pneumatic actuator mainly comprises a box body, a worm and gear mechanism is arranged in the box body, two ends of a worm are rotatably connected to the box body through eccentric half shafts, the eccentric half shafts are in non-coaxial connection with the worm, the two eccentric half shafts are respectively fixed with corresponding end portions of a switching handle, and a hand wheel is arranged at one end portion of the worm. The working principle is that when the switching handle rotates reversely, the worm is separated from the turbine; when the switching handle rotates in the forward direction, the worm is meshed with the turbine, at the moment, the hand wheel is rotated to drive the worm to rotate, and then the turbine is driven to rotate.
However, in the process of meshing and rotating the worm and the turbine, the friction between the worm and the eccentric hole of the eccentric half shaft inevitably occurs, and the friction force gradually drives the eccentric half shaft to rotate in the forward direction, and the worm and the turbine are meshed and matched, namely the worm and the turbine cannot approach each other any more, so that the eccentric hole and the worm are no longer coaxial due to the forward rotation of the eccentric half shaft, and finally the worm and the eccentric hole are mutually locked, thereby seriously affecting the normal work of the pneumatic actuator.
Therefore, a new switching hand wheel mechanism for a pneumatic actuator is needed
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problem that in the meshing rotation process of a worm and a turbine of the existing actuator, the inevitable friction between a worm and an eccentric hole of an eccentric half shaft can generate, and the friction can gradually drive the eccentric half shaft to rotate in the forward direction, and the forward rotation of the eccentric half shaft can enable the eccentric hole to be no longer coaxial with the worm due to the meshing fit of the worm and the turbine, namely the worm and the turbine can not approach to each other any more, so that the worm and the eccentric hole are mutually clamped, the normal work of the pneumatic actuator is seriously influenced, and the switching hand wheel mechanism of the pneumatic actuator is provided.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a pneumatic actuator's switching hand wheel mechanism, including box and hand wheel, the hand wheel is located the outside position of box, the inside embedding of box is provided with rotating-structure, rotating-structure is including worm and eccentric semi-axis, the worm embedding sets up in eccentric semi-axis, the location bearing has been cup jointed at the both ends of worm, the fixed locating rod section of thick bamboo that is provided with in both ends of eccentric semi-axis, the spacing groove has been seted up to the fixed surface of a locating rod section of thick bamboo, the bottom fixedly connected with installation piece of box, spacing chamber has been seted up to the inside fixed spacing chamber that has seted up of installation piece, spacing chamber is whole to be vertical seting up, the bottom embedding in spacing chamber is provided with the regulating wheel, the top fixedly connected with base of regulating wheel, the top fixedly connected with spring beam of base, the top fixedly connected with gag lever post of spring beam, the stabilizer ring has been cup jointed on the spring beam.
Further preferred scheme: the locating bearing sets up two sets ofly, and the embedding sets up inside a locating rod section of thick bamboo simultaneously, and is the activity embedding setting between locating bearing and the locating rod section of thick bamboo.
Further preferred scheme: the limiting groove is formed in the outer side surface of the positioning rod barrel, is located at the axis opposite position of the positioning rod barrel and is arranged in an L-shaped inwards concave mode.
Further preferred scheme: the adjusting wheel and the base are in screw connection with the mounting block.
Further preferred scheme: the stabilizing rings are arranged in two groups and are arranged as rubber rings, and the rubber rings are movably embedded in the limiting cavity.
Further preferred scheme: the top end of the limiting rod is arranged in a transverse L shape, and the edge of the top end of the limiting rod and the surface of the inner side of the limiting groove are arranged in parallel.
The utility model provides a hand wheel switching mechanism of a pneumatic actuator, which has the following beneficial effects:
according to the utility model, the use and rotation flexibility and stability of the worm are enhanced through the positioning bearing, and meanwhile, the situation that the worm is locked by the eccentric half shaft due to the fact that the eccentric half shaft is driven by the worm to rotate is effectively avoided, the abrasion between the worm and the eccentric half shaft is effectively reduced, and the service lives of the worm and the eccentric half shaft are prolonged.
The spring rod and the limiting rod are embedded in the limiting groove, and the height of the spring rod and the height of the limiting rod can be conveniently adjusted by the adjusting wheel and the base which are in threaded connection with the mounting block.
According to the utility model, the friction force between the spring rod and the limiting cavity is enhanced through the stabilizing ring, the stability of the spring rod is effectively enhanced through the stabilizing ring when the height of the spring rod is adjusted, and meanwhile, the rebound of the spring rod is reduced, so that the embedding of the limiting rod and the limiting groove is facilitated.
According to the utility model, the effect of limiting and fixing the rotation of the eccentric half shaft is achieved through the limiting rod.
Drawings
FIG. 1 is a plan view of the overall structure of the device of the present invention.
Fig. 2 is an exploded view of the rotary structure of the device of the present invention.
FIG. 3 is an enlarged view of the structure of FIG. 1A of the apparatus of the present invention.
In FIGS. 1-3: 1. a box body; 2. a hand wheel; 3. a rotating structure; 4. a worm; 5. an eccentric half shaft; 6. positioning the bearing; 7. a positioning rod barrel; 8. a limiting groove; 9. mounting blocks; 10. a limiting cavity; 11. an adjustment wheel; 12. a base; 13. a spring lever; 14. a stabilizing ring; 15. a limiting rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 to 3 in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b):
please refer to fig. 1 to 3:
the embodiment provides a further preferred scheme of a switching hand wheel mechanism of a pneumatic actuator, which comprises a box body 1 and a hand wheel 2, wherein the hand wheel 2 is positioned at the outer side position of the box body 1, a rotating structure 3 is embedded in the box body 1, the rotating structure 3 comprises a worm 4 and an eccentric half shaft 5, the worm 4 is embedded in the eccentric half shaft 5, two ends of the worm 4 are sleeved with positioning bearings 6, two ends of the eccentric half shaft 5 are fixedly provided with positioning rod cylinders 7, the surfaces of the positioning rod cylinders 7 are fixedly provided with limiting grooves 8, the bottom end of the box body 1 is fixedly connected with an installation block 9, the interior of the installation block 9 is fixedly provided with a limiting cavity 10, the whole limiting cavity 10 is vertically arranged, the bottom end of the limiting cavity 10 is embedded with an adjusting wheel 11, the top end of the adjusting wheel 11 is fixedly connected with a base 12, the top end of the base 12 is fixedly connected with a spring rod 13, and the top end of the spring rod 13 is fixedly connected with a limiting rod 15, a stabilizing ring 14 is sleeved on the spring rod 13.
Further, positioning bearing 6 sets up two sets ofly, the embedding sets up inside a positioning rod section of thick bamboo 7 simultaneously, and be the setting of activity embedding between positioning bearing 6 and the positioning rod section of thick bamboo 7, use through positioning bearing 6 reinforcing worm 4 rotates flexibility and stability, simultaneously the effectual eccentric semi-axis 5 of having avoided is driven by worm 4 and rotates and lead to worm 4 to be taken place by the dead condition of eccentric semi-axis 5 card, effectively reduced the wearing and tearing between worm 4 and the eccentric semi-axis 5, both life has been prolonged.
Furthermore, a limiting groove 8 is formed in the outer side surface of the positioning rod cylinder 7, the limiting groove 8 is located at the corresponding position of the axis of the positioning rod cylinder 7 and is arranged in an L-shaped concave manner, and the limiting groove 8 achieves the effect of being embedded with the limiting rod 15.
Furthermore, the adjusting wheel 11 and the base 12 are in screw connection with the mounting block 9, and the adjusting wheel 11 and the base 12 are in screw connection with the mounting block 9, so that the heights of the spring rod 13 and the limiting rod 15 can be conveniently adjusted when the device is used.
Further, the stabilizing ring 14 sets up two sets ofly, sets up to the rubber ring, and the activity embedding is in spacing chamber 10, through the frictional force between 14 reinforcing spring bars 13 of stabilizing ring and the spacing chamber 10, when carrying out altitude mixture control to spring bars 13, through the effectual stability that strengthens spring bars 13 of stabilizing ring 14, reduces springback of spring bars 13 simultaneously, is favorable to gag lever post 15 and the gomphosis of spacing groove 8.
Further, the top of gag lever post 15 is horizontal "L" form setting, and gag lever post 15 top edge and spacing groove 8 inside surface are parallel arrangement, reach through gag lever post 15 and carry out spacing fixed effect to eccentric semi-axis 5's rotation.
The working principle is as follows: the two ends of the worm 4 are connected with the axle center of the hand wheel 2 through the connecting rod body, when the worm 4 rotates, the worm 4 rotates in the inner part of the eccentric half shaft 5 through the positioning bearing 6 in a positioning way, meanwhile, the positioning bearing 6 enhances the use stability of the worm 4, the situation that the worm 4 drives the eccentric half shaft 5 to move synchronously is avoided, when the worm 4 rotates, if the eccentric half shaft 5 is driven to move, the limiting groove 8 arranged on the surface of the eccentric half shaft 5 moves to the vertical low position of the eccentric half shaft 5, at the moment, the limiting groove 8 is embedded and butted with the hook-shaped position at the top of the limiting rod 15, so that the eccentric half shaft 5 is limited and fixed to avoid moving, meanwhile, a user rotates the adjusting wheel 11, the butting position of the adjusting wheel 11 and the mounting block 9 is adjusted in a spiral way, the base 12 is driven to spirally ascend in the limiting cavity 10, and the spring rod 13 is pushed to ascend, thereby be favorable to the gomphosis between gag lever post 15 and the spacing groove 8, be convenient for simultaneously the later stage to dismantle the change spring beam 13 and gag lever post 15.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a pneumatic actuator's switching hand wheel mechanism, includes box (1) and hand wheel (2), and hand wheel (2) are located the outside position of box (1), its characterized in that: the inner part of the box body (1) is embedded with a rotating structure (3), the rotating structure (3) comprises a worm (4) and an eccentric half shaft (5), the worm (4) is embedded in the eccentric half shaft (5), two ends of the worm (4) are sleeved with positioning bearings (6), two ends of the eccentric half shaft (5) are fixedly provided with positioning rod cylinders (7), the surface of each positioning rod cylinder (7) is fixedly provided with a limiting groove (8), the bottom end of the box body (1) is fixedly connected with a mounting block (9), the inner part of the mounting block (9) is fixedly provided with a limiting cavity (10), the whole limiting cavity (10) is vertically arranged, the bottom end of the limiting cavity (10) is embedded with an adjusting wheel (11), the top end of the adjusting wheel (11) is fixedly connected with a base (12), the top end of the base (12) is fixedly connected with a spring rod (13), and the top end of the spring rod (13) is fixedly connected with a limiting rod (15), the spring rod (13) is sleeved with a stabilizing ring (14).
2. The switching handwheel mechanism of a pneumatic actuator of claim 1, wherein: the positioning bearings (6) are arranged in two groups and embedded in the positioning rod cylinder (7), and the positioning bearings (6) and the positioning rod cylinder (7) are movably embedded.
3. The switching handwheel mechanism of a pneumatic actuator of claim 1, wherein: the limiting groove (8) is formed in the outer side surface of the positioning rod barrel (7), and the limiting groove (8) is located at the position corresponding to the axis of the positioning rod barrel (7) and is arranged in an L-shaped concave mode.
4. The switching handwheel mechanism of a pneumatic actuator of claim 1, wherein: the adjusting wheel (11), the base (12) and the mounting block (9) are in spiral connection.
5. The switching handwheel mechanism of a pneumatic actuator of claim 1, wherein: the two groups of stabilizing rings (14) are arranged as rubber rings and are movably embedded in the limiting cavity (10).
6. The switching handwheel mechanism of a pneumatic actuator of claim 1, wherein: the top end of the limiting rod (15) is arranged in a transverse L shape, and the top end edge of the limiting rod (15) and the inner side surface of the limiting groove (8) are arranged in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122344987.7U CN215673872U (en) | 2021-09-27 | 2021-09-27 | Switching hand wheel mechanism of pneumatic actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122344987.7U CN215673872U (en) | 2021-09-27 | 2021-09-27 | Switching hand wheel mechanism of pneumatic actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215673872U true CN215673872U (en) | 2022-01-28 |
Family
ID=79966477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122344987.7U Expired - Fee Related CN215673872U (en) | 2021-09-27 | 2021-09-27 | Switching hand wheel mechanism of pneumatic actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215673872U (en) |
-
2021
- 2021-09-27 CN CN202122344987.7U patent/CN215673872U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220128 |