CN212377178U - Driving structure with brake function - Google Patents
Driving structure with brake function Download PDFInfo
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- CN212377178U CN212377178U CN202020382335.5U CN202020382335U CN212377178U CN 212377178 U CN212377178 U CN 212377178U CN 202020382335 U CN202020382335 U CN 202020382335U CN 212377178 U CN212377178 U CN 212377178U
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- air chamber
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- block
- air
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Abstract
The utility model relates to the technical field of driving devices, and discloses a driving structure with a braking function.A supporting block and a first cavity are arranged on a shell, a holding piece is connected with an output shaft, and the holding piece can rotate along with the output shaft; the movable block is located in the first cavity, the movable block can move in the first cavity and divides the first cavity into a first air chamber and a second air chamber which are not communicated with each other, air pressure in the first air chamber is adjustable, the movable block is set to be larger than air pressure in the second air chamber when air pressure in the first air chamber is larger than air pressure in the second air chamber, the movable block tightly presses the clamping piece on the clamping block, the first air chamber is inflated, when air pressure in the first air chamber is larger than air pressure in the first cavity, the movable block can be driven by air pressure to move in the first cavity, the clamping piece is tightly pressed on the clamping block located on the shell, the clamping piece rotating along with the main shaft is tightly pressed, the effect of blocking rotation of the output shaft can be achieved, and the time of braking of the output shaft is shortened.
Description
Technical Field
The utility model belongs to the technical field of drive arrangement technique and specifically relates to a drive structure with brake function is related to.
Background
The rotating motor has an irreplaceable effect in production and life as a common driving structure, but in the machining process, an output shaft is often required to brake suddenly, but the purpose of quick braking cannot be well achieved only through stopping and driving of the motor is achieved, and the machining precision of equipment is affected due to poor braking effect.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a drive structure with brake function can reduce the time of output shaft brake.
The utility model provides a drive structure with brake function which characterized in that includes:
the device comprises a shell, a first cavity and a second cavity, wherein the shell is provided with a butting block and the first cavity;
the output shaft and the holding piece are connected, and the holding piece can rotate along with the output shaft;
the movable block is located in the first cavity and can move in the first cavity, the first cavity is divided into a first air chamber and a second air chamber which are not communicated with each other, air pressure in the first air chamber is adjustable, the movable block is set to be larger than air pressure in the second air chamber when the air pressure of the first air chamber is larger than that of the second air chamber, and the movable block tightly presses the holding piece on the holding block.
As an improvement to the technical scheme, the moving block comprises a protrusion, the abutting block comprises a recess, and the protrusion is used for pressing the holding piece in the recess.
As a further improvement of the technical scheme, the moving block divides the first cavity into a first air chamber, a second air chamber and a third air chamber which are not communicated with each other, the air pressure in the third air chamber is adjustable, and the moving block is arranged to press the holding piece onto the abutting block when the air pressure of the first air chamber is greater than the air pressure of the second air chamber and the air pressure of the third air chamber.
As a further improvement to the above technical solution, the air pressure of the second air chamber is adjustable.
As the further improvement of the technical scheme, the clamping device further comprises a first pressing block and a second pressing block, wherein the first pressing block and the second pressing block are both connected with the output shaft, and the first pressing block and the second pressing block can press the clamping piece in a gap formed by the first pressing block and the second pressing block.
As the further improvement to the technical scheme, the first pressing block can be detachably connected with the output shaft.
As a further improvement to the technical scheme, the air-conditioning device further comprises a sealing ring, and the sealing ring is connected with the moving block, so that the first air chamber and the second air chamber are not communicated.
As a further improvement to the technical scheme, the device further comprises a position recognition device, and the position recognition device is connected with the output shaft and rotates along with the output shaft.
As a further improvement to the above technical solution, the housing includes a second cavity, the position recognition device can rotate in the second cavity, and the second cavity is not communicated with the first cavity.
As the further improvement to the technical scheme, the pneumatic control device further comprises a workpiece and an air pipe, wherein the output shaft is of a hollow structure, the workpiece is connected to the end portion of the output shaft, one end of the air pipe is used for being connected with the pneumatic control device, and the other end of the air pipe can penetrate through the output shaft to be connected with the workpiece.
Has the advantages that: when first air chamber is aerifyd for atmospheric pressure in the first air chamber is greater than the atmospheric pressure in the first cavity, thereby the movable block can be removed in first cavity by the atmospheric pressure drive, and will hug closely the piece and compress tightly on lieing in the piece of holding of casing, thereby make along with the main shaft pivoted hug closely the piece and compressed tightly, thereby can play the effect of hindrance to the rotation of output shaft, reduce the time of output shaft brake.
Drawings
FIG. 1 is a cross-sectional view of a first embodiment;
fig. 2 is an enlarged view at a in fig. 1.
Reference numerals: the clamping device comprises a workbench 101, a bearing 102, a motor 103, an output shaft 104, a front cover 105, a position identification device 106, a clamping piece 107, a butting block 108, a moving block 109, a third air chamber 110, a rear cover 111, a second air chamber 112, a first pressing block 113, a second pressing block 114, a first groove 115 and a first air chamber 201.
Detailed Description
The conception and the resulting technical effects of the present invention will be described clearly and completely with reference to the following embodiments, so that the objects, features and effects of the present invention can be fully understood. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention.
In the description of the embodiments of the present invention, if an orientation description is referred to, for example, the directions or positional relationships indicated by "upper", "lower", "front", "rear", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, only for convenience of description and simplification of description, but not for indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the embodiments of the present invention, if a feature is referred to as being "disposed", "fixed", "connected", or "mounted" on another feature, it can be directly disposed, fixed, or connected to the other feature or indirectly disposed, fixed, connected, or mounted on the other feature. In the description of the embodiments of the present invention, if "a plurality" is referred to, it means one or more, if "a plurality" is referred to, it means two or more, if "greater than", "less than" or "more than" is referred to, it is understood that the number is not included, and if "more than", "less than" or "within" is referred to, it is understood that the number is included. If reference is made to "first" or "second", this should be understood to distinguish between features and not to indicate or imply relative importance or to implicitly indicate the number of indicated features or to implicitly indicate the precedence of the indicated features.
A first embodiment;
referring to fig. 1, an embodiment of a driving structure with a braking function includes a motor 103, a bearing 102, and an output shaft 104, the motor 103 is connected to the output shaft 104 through the bearing 102, such that the output shaft 104 can be driven to rotate by the motor 103, and when the motor 103 stops driving, the output shaft 104 can gradually stop rotating.
The housing comprises a front cover 105 and a rear cover 111, the front cover 105 and the rear cover 111 form a closed structure, and the output shaft 104 passes through the rear cover 111 and the front cover 105 in sequence to drive the workbench 101 to rotate, so as to perform work.
The rear cover 111 is provided with a first cavity, a moving block 109 is arranged in the first cavity, the moving block 109 can move in the first cavity in the vertical direction as shown in fig. 1 and is limited in the first cavity, and the moving block divides the first cavity into a first air chamber 201 and a second air chamber 112.
The embodiment further comprises a first pressing block 113, a second pressing block 114 and a clasping sheet 107, wherein the first pressing block 113 and the second pressing block 114 are connected with the output shaft 104, and the clasping sheet 107 can be pressed in a gap formed by the first pressing block 113 and the second pressing block 114, and the structure can enable the first pressing block 113, the second pressing block 114 and the clasping sheet 107 to rotate together with the output shaft 104.
One side of the moving block 109 close to the rear cover 111 is provided with a first groove 115, the first groove 115 and the rear cover 111 form a first air chamber 201, when the first air chamber 201 is inflated by the gas supply device, and the air pressure of the first air chamber 201 is higher than that of the second air chamber 115, the moving block 109 moves towards the upper side as shown in the figure, so that the clamping block can clamp the clasping piece 107 against the clamping block 108 on the front cover 105, friction between the clasping piece 107 and the front cover 105 and the rear cover 111 is increased, rotation of the clasping piece 107 is blocked, rotation of the output shaft 104 connected with the clasping piece 107 is indirectly blocked, and the structure has the beneficial effects that: when emergency braking is needed, the time for braking the output shaft 104 can be reduced by pressing the clasping sheet 107 against the holding block 108.
As a supplement to the above embodiment, a recess is provided on one side of the abutting block 108 adjacent to the moving block 109, a protrusion is provided on one side of the moving block 109 adjacent to the abutting block 108, and the protrusion and the recess can be attached to each other, which is more beneficial for the clasping piece 107 to be pressed between the moving block 109 and the abutting block 108.
As a supplement to the above embodiment, the first pressing block 113 and the output shaft 104 are detachably connected, and the structure has the following beneficial effects: by detaching the first pressing block 113, the clasping piece 107 can be conveniently replaced.
In addition to the above embodiment, the present embodiment further includes a position recognition device 106, and as an embodiment, the position recognition device 106 is an encoder, and the position recognition device 106 is connected to the output shaft 104 and can rotate together with the output shaft 104, so that the rotational position information of the output shaft 104 can be recognized more accurately.
As a supplement to the above embodiment, the front cover 105 further includes a second cavity, the second cavity can provide rotation for the position recognition device 106, and the first cavity and the second cavity are not communicated with each other, so that dust generated in the first cavity during braking does not affect the position recognition device 106, and the accuracy of the position recognition device 106 is ensured.
As a supplement to the above embodiment, the output shaft 104 is a hollow structure, one end of the air pipe can be connected with the workpiece connected to one side of the workbench 101 through the hollow structure, and the other end of the air pipe is connected with the air pressure control device, so that the negative pressure can be provided for the workpiece, and the workpiece can work, and the beneficial effects of the above structure are that: 1. the hollow structure through the output shaft 104 may enable the passage of an air tube therethrough; 2. the weight of the output shaft 104 can be reduced, driving of the output shaft 104 by the motor 103 is facilitated, and braking of the output shaft 104 by the grip piece 107 is facilitated.
Second embodiment:
the second embodiment is added with the technical characteristics of the first embodiment: as shown in fig. 1, a second groove is further formed in one side of the moving block 109 close to the abutting block 108, a third air chamber 110 is formed between the second groove and the rear cover 111, the third air chamber 110 can also be connected with a gas control device, so that the air pressure in the third air chamber 110 can be controlled, when the air pressure of the first air chamber 201 is greater than the air pressure of the third air chamber 110 and the air pressure of the second air chamber 112, the clasping piece 107 is abutted against the abutting block 108 by the moving block 109, so that the braking of the output shaft 104 is accelerated, and when the air pressure of the third air chamber 110 or the air pressure of the second air chamber 112 is greater than the air pressure of the first air chamber 201, the moving block 109 cannot extrude the clasping piece 107, so that the output shaft 104 can normally rotate.
The third embodiment:
the third embodiment is added with the technical characteristics of the first embodiment: the second air chamber 112 is connected with the gas control device, so that the air pressure in the second air chamber 112 can be controlled, when the air pressure of the first air chamber 201 is greater than the air pressure of the second air chamber 112, the clasping piece 107 is abutted against the abutting block 108 by the moving block 109, so that the braking of the output shaft 104 is accelerated, and when the air pressure of the second air chamber 112 is greater than the air pressure of the first air chamber 201, the moving block 109 cannot extrude the clasping piece 107, so that the output shaft 104 can normally rotate.
As another embodiment, the air-conditioning device further comprises a sealing ring, and the sealing ring is connected with the moving block, so that the first air chamber and the second air chamber are not communicated.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art. Furthermore, the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.
Claims (10)
1. The utility model provides a drive structure with brake function which characterized in that includes:
the device comprises a shell, a first cavity and a second cavity, wherein the shell is provided with a butting block and the first cavity;
the output shaft and the clasping sheet are connected, and the clasping sheet can rotate along with the output shaft;
the moving block is located in the first cavity, the moving block can move in the first cavity and divides the first cavity into a first air chamber and a second air chamber which are not communicated with each other, the air pressure in the first air chamber is adjustable, the moving block is set to be larger than the air pressure in the second air chamber when the air pressure in the first air chamber is larger than the air pressure in the second air chamber, and the moving block tightly presses the clamping piece on the abutting block.
2. The driving structure with a brake function as claimed in claim 1, wherein the moving block comprises a protrusion, the holding block comprises a recess, and the protrusion is used for pressing the clasping piece in the recess.
3. The driving structure with a brake function as claimed in claim 1, wherein the moving block divides the first cavity into the first air chamber, the second air chamber and a third air chamber which are not communicated with each other, the air pressure in the third air chamber is adjustable, and the moving block is configured to press the clasping piece against the clasping block when the air pressure in the first air chamber is greater than the air pressure in the second air chamber and the air pressure in the third air chamber.
4. The driving structure with a braking function as claimed in claim 1, wherein the air pressure of the second air chamber is adjustable.
5. The driving structure with the brake function according to claim 1, further comprising a first pressing block and a second pressing block, wherein the first pressing block and the second pressing block are both connected with the output shaft, and the first pressing block and the second pressing block can press the clasping sheet in a gap formed by the first pressing block and the second pressing block.
6. The drive structure with a brake function as claimed in claim 5, wherein the first pressing block is detachably connected to the output shaft.
7. The driving structure with a brake function as claimed in claim 1, further comprising a sealing ring connected to the moving block such that the first air chamber and the second air chamber are not communicated with each other.
8. The driving structure with the braking function as claimed in claim 1, wherein the moving block is provided with a first groove, and the first groove can abut against the housing to form a first closed air chamber.
9. The driving structure with a braking function as claimed in claim 1, further comprising a position recognition device connected with the output shaft and rotating with the output shaft, wherein the housing comprises a second cavity, the position recognition device can rotate in the second cavity, and the second cavity is not communicated with the first cavity.
10. The driving structure with a braking function as claimed in claim 1, further comprising a working member and an air pipe, wherein the output shaft is hollow, the working member is connected to an end of the output shaft, one end of the air pipe is used for connecting with an air pressure control device, and the other end of the air pipe can penetrate through the output shaft to connect with the working member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020382335.5U CN212377178U (en) | 2020-03-23 | 2020-03-23 | Driving structure with brake function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020382335.5U CN212377178U (en) | 2020-03-23 | 2020-03-23 | Driving structure with brake function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212377178U true CN212377178U (en) | 2021-01-19 |
Family
ID=74158533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020382335.5U Active CN212377178U (en) | 2020-03-23 | 2020-03-23 | Driving structure with brake function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212377178U (en) |
-
2020
- 2020-03-23 CN CN202020382335.5U patent/CN212377178U/en active Active
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