CN218216985U - Limiting locking device - Google Patents
Limiting locking device Download PDFInfo
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- CN218216985U CN218216985U CN202221913258.7U CN202221913258U CN218216985U CN 218216985 U CN218216985 U CN 218216985U CN 202221913258 U CN202221913258 U CN 202221913258U CN 218216985 U CN218216985 U CN 218216985U
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- positioning
- rotating shaft
- positioning pin
- motor
- motor rotating
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Abstract
The utility model discloses a limit locking device, which comprises a limit structure and a locking structure, wherein the limit structure comprises a plurality of travel switches and a trigger part, and the travel switches are arranged outside the motor rotating shaft in sequence along the axial direction of the motor rotating shaft; the trigger piece is arranged on the motor rotating shaft and triggers the corresponding travel switch in the process of rotating along with the motor rotating shaft; the locking structure comprises a positioning disc and a positioning pin, the positioning disc is fixed on the motor rotating shaft and is coaxially arranged with the motor rotating shaft, the positioning pin is fixed on the positioning pin driving piece, and the positioning pin can extend out and lock the positioning disc under the control of the positioning pin driving piece. The travel switches of the limit structure of the utility model are arranged along the axial direction of the motor rotating shaft, and a plurality of travel switches do not need to occupy the space of the periphery of the rotating shaft; the mountable number of the travel switches is increased by prolonging the length of the motor rotating shaft, and the expansion performance is good; the positioning pin driving piece adopts an electromagnet, and the positioning pin extends out to realize locking under the condition of power failure.
Description
Technical Field
The utility model relates to the field of machinary locking device especially relates to a spacing locking device.
Background
A limit switch is a common limit component in performing angular rotation of a lamp or other motion control requiring a motor. The driving part generally adopts an alternating current or direct current speed reducing motor. In the process of angular rotation of the lamp, the limit switches are arranged at the starting end and the tail end of a specified stroke, and when the motor moves to the starting end or the tail end, the stroke position is determined through the limit switches, so that the motor stops rotating, and the motion stroke is prevented from being exceeded. When the angle of the lamp is adjusted up and down, or a motor drives an object with weight to move up and down, if power is cut off accidentally, the motor generally brakes through power-off suction brake to perform braking treatment. In the process of adopting the traditional scheme, a plurality of travel switches are needed, and a power-off suction brake must be arranged on the motor. The power-off actuation brake and the travel switches occupy large volume when being matched with a motor for use, and are limited to be used in a small space; because the travel switches are arranged along the periphery of the rotating shaft of the motor, the space for installing the travel switches is limited, and therefore the quantity of the travel switches is limited. Accordingly, the prior art is yet to be improved and developed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a spacing locking device is provided, it is bulky to solve current spacing locking device, uses the limited problem of installation in the little space.
The technical scheme adopted by the utility model for solving the technical problems is to provide a limiting and locking device, which comprises a limiting structure and a locking structure, wherein the limiting structure comprises a plurality of travel switches and a trigger part, and the travel switches are arranged outside the motor rotating shaft in sequence along the axial direction of the motor rotating shaft; the trigger pieces are arranged on the motor rotating shaft, the trigger pieces are multiple and are arranged corresponding to the travel switches, and the corresponding travel switches are triggered by the trigger pieces in the process that the trigger pieces rotate along with the motor rotating shaft; the locking structure comprises a positioning disc and a positioning pin, the positioning disc is fixed on the motor rotating shaft and is coaxially arranged with the motor rotating shaft, the positioning pin is fixed on the positioning pin driving piece, and the positioning pin can extend out and lock the positioning disc under the control of the positioning pin driving piece.
Furthermore, the travel switch is connected with a controller, and the controller controls a positioning pin driving piece of the locking structure.
Furthermore, the positioning pin driving piece is an electromagnet, and a reset spring is arranged in the positioning pin driving piece; when the positioning pin driving piece is powered on, the positioning pin retracts under the action of magnetic force and is separated from the positioning disc; the rotating shaft of the motor is in a rotatable state; when the positioning pin driving piece loses power, the positioning pin extends out under the action of the reset spring and locks the positioning disc.
Furthermore, the trigger part is a top rod, and the angle between the top rods is a set limiting angle.
Further, the trigger is a gear, and the rotation angle of the motor rotating shaft is obtained by calculating the number of times that the gear triggers the travel switch and the angle between two adjacent teeth of the gear.
Furthermore, the positioning disc is circumferentially provided with positioning holes matched with the diameters of the positioning pins, the positioning pins are axially arranged along the motor rotating shaft, and the positioning pins are inserted into the positioning holes to lock the positioning disc.
Further, the edge of the positioning disk is circumferentially provided with a positioning groove matched with the diameter of the positioning pin, the positioning pin is arranged along the radial direction or the axial direction of the rotating shaft of the motor, and the positioning pin is inserted into the positioning groove to lock the positioning disk.
The utility model discloses contrast prior art has following beneficial effect: the utility model provides a limit locking device, the travel switch of the limit structure is arranged along the axial direction of the motor rotating shaft, and a plurality of travel switches do not need to occupy the space of the periphery of the rotating shaft; the mountable number of the travel switches can be increased by prolonging the length of the motor rotating shaft, and the expansion performance is good; the trigger part of the limiting structure can adopt a gear and is matched with a travel switch to realize the measurement of the rotating angle; the positioning pin driving piece adopts an electromagnet, the positioning pin extends out to realize locking under the condition of power failure, power failure locking is realized under the condition that power failure actuation braking is not needed, and the structure is simpler.
Drawings
Fig. 1 is a schematic structural view of a limiting and locking device according to an embodiment of the present invention;
fig. 2 is a front view of the limiting and locking device of the embodiment of the present invention;
fig. 3 is a schematic structural view of a spacing locking device according to another embodiment of the present invention;
fig. 4 is a schematic view illustrating installation of a positioning plate according to another embodiment of the present invention.
In the figure:
1. a travel switch; 2. a trigger; 3. positioning a plate; 4. positioning holes; 5. positioning pins; 6. a positioning pin driving member; 7. a gear; 8. positioning a groove; 10. a motor shaft.
Detailed Description
The invention is further described with reference to the following figures and examples.
Fig. 1 is a schematic structural view of a limiting and locking device according to an embodiment of the present invention; fig. 2 is a front view of the limiting and locking device of the embodiment of the present invention.
Referring to fig. 1 and fig. 2, the limiting locking device of the embodiment of the present invention includes a limiting structure and a locking structure, the limiting structure includes a plurality of travel switches 1 and a trigger 2, the travel switches 1 are sequentially arranged along the axial direction of the motor shaft 10 outside the motor shaft 10; the trigger pieces 2 are arranged on the motor rotating shaft 10, the trigger pieces 2 are multiple and are arranged corresponding to the travel switches 1, and the corresponding travel switches 1 are triggered in the process that the trigger pieces 2 rotate along with the motor rotating shaft 10; locking structure includes positioning disk 3 and locating pin 5, and positioning disk 3 fixes on motor shaft 10 and sets up with motor shaft 10 is coaxial, and locating pin 5 fixes on locating pin driving piece 6, and locating pin 5 can stretch out locking positioning disk 3 under the control of locating pin driving piece 6.
Specifically, the travel switch 1 is connected with a controller, and the controller controls a positioning pin driving piece 6 of the locking structure; normally, the travel switch 1 is triggered to send a trigger signal to the controller, and the controller controls the motor to stop rotating, and controls the positioning pin driving member 6 to act to drive the positioning pin 5 to extend out of the locking positioning disc 3.
Specifically, the positioning pin driving piece 6 is an electromagnet, and a return spring is arranged in the positioning pin driving piece 6; when the positioning pin driving piece 6 is powered on, the positioning pin 5 retracts under the action of magnetic force and is separated from the positioning disc 3; the motor rotating shaft 10 is in a rotatable state; when the positioning pin driving piece 6 loses power, the positioning pin 5 extends out of the locking positioning disc 3 under the action of the reset spring. Under the condition of power failure, the positioning pin 5 automatically extends out of the locking positioning disc 3, automatic power-off locking is realized under the condition that power-off actuation and braking are not needed, and the structure is simpler.
Specifically, the trigger part 2 is a mandril, and the angle between the mandrils is a set limit angle.
The trigger 2 can also be a gear 7, as shown in fig. 3, the teeth of the gear 7 sequentially trigger the travel switch 1, the rotation angle of the motor rotating shaft 10 is obtained through the number of times the gear 7 triggers the travel switch 1 and the angle between two adjacent teeth of the gear 7, and the limit is performed by comparing the rotation angle with a set limit angle.
Specifically, positioning holes 4 matched with the positioning pins 5 in diameter are formed in the positioning disc 3 in the circumferential direction, the positioning pins 5 are axially arranged along the motor rotating shaft 10, and the positioning pins 5 are inserted into the positioning holes 4 to lock the positioning disc 3.
Can also set up the constant head tank 8 that matches with 5 diameters of locating pin along circumference at positioning disk 3 edge, as shown in fig. 4, motor shaft 10 is radially or the axial setting can be followed to locating pin 5, adjusts according to installation space, and positioning pin 5 inserts and locks positioning disk 3 in the constant head tank 8.
In a specific embodiment, the stroke limit is carried out at the positions of 0 degree and 160 degrees of rotation of the motor, one ejector rod is arranged at the position of 0 degree, then the other ejector rod is arranged at the position of 160 degrees, the angle between the two ejector rods is 160 degrees, and the axial distance between the rotating shafts 10 of the motors of the two ejector rods is the distance between the contacts of the stroke switch 1. When the motor is required to be electrified to move, the controller controls the positioning pin driving piece 6 to be electrified, the positioning pin 5 retracts, the motor is started to drive the positioning disc 3 to rotate, and when the position of the limit position is reached, the ejector rod presses down the contact of the travel switch 1, and the travel switch 1 is triggered. The motor is controlled to stop through the controller, the positioning pin driving piece 6 is controlled to be powered off, and the positioning pin 5 extends out to be limited. Because the limit switches 1 corresponding to the starting position mandril and the ending position mandril are different, the position of the starting position mandril and the position of the ending position mandril can be judged by triggering different limit switches 1. When the power is cut off accidentally, the positioning pin driving piece 6 is cut off simultaneously, the positioning pin 5 extends out to lock the positioning disc 3, and after the power is cut off and the energy is lost, the motor is driven by a heavy object to rotate, so that the power-off locking effect is achieved.
To sum up, in the limit locking device of the embodiment of the present invention, the travel switches 1 of the limit structure are arranged along the axial direction of the motor rotating shaft 10, and the plurality of travel switches 1 do not occupy the space around the rotating shaft; the mountable number of the travel switches 1 can be increased by prolonging the length of the motor rotating shaft 10, and the extension performance is good; the trigger part 2 of the limiting structure can adopt a gear 7 and is matched with the travel switch 1 to realize the measurement of the rotating angle; the positioning pin driving piece 6 adopts an electromagnet, the positioning pin 5 extends out to realize locking under the condition of power failure, power failure locking is realized under the condition of no need of power failure suction braking, and the structure is simpler.
Although the present invention has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. A limiting and locking device is characterized by comprising a limiting structure and a locking structure, wherein the limiting structure comprises a plurality of travel switches and a trigger part, and the travel switches are sequentially arranged outside a motor rotating shaft along the axial direction of the motor rotating shaft; the trigger pieces are arranged on the motor rotating shaft, the trigger pieces are multiple and are arranged corresponding to the travel switches, and the corresponding travel switches are triggered by the trigger pieces in the process that the trigger pieces rotate along with the motor rotating shaft; the locking structure comprises a positioning disc and a positioning pin, the positioning disc is fixed on the motor rotating shaft and is coaxially arranged with the motor rotating shaft, the positioning pin is fixed on the positioning pin driving piece, and the positioning pin can extend out and lock the positioning disc under the control of the positioning pin driving piece.
2. The positive lock device of claim 1, wherein a controller is connected to the travel switch, the controller controlling a drive member of a detent pin of the locking mechanism.
3. The positive lock device of claim 1, wherein the drive pin is an electromagnet and a return spring is disposed in the drive pin; when the positioning pin driving piece is powered on, the positioning pin retracts under the action of magnetic force and is separated from the positioning disc; the rotating shaft of the motor is in a rotatable state; when the positioning pin driving piece loses power, the positioning pin extends out under the action of the reset spring and locks the positioning disc.
4. The positive lock device of claim 1, wherein the trigger is a ram, and the angle between the rams is a set positive lock angle.
5. The limit locking device according to claim 1, wherein the trigger member is a gear, and the rotation angle of the motor shaft is calculated by the number of times the gear triggers the travel switch and the angle between two adjacent teeth of the gear.
6. The limit locking device according to claim 1, wherein the positioning plate is circumferentially provided with positioning holes matched with the diameters of the positioning pins, the positioning pins are axially arranged along the rotating shaft of the motor, and the positioning pins are inserted into the positioning holes to lock the positioning plate.
7. The positive locking device according to claim 1, wherein the edge of the positioning disk is circumferentially provided with a positioning groove matched with the diameter of the positioning pin, the positioning pin is arranged along the radial direction or the axial direction of the rotating shaft of the motor, and the positioning pin is inserted into the positioning groove to lock the positioning disk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221913258.7U CN218216985U (en) | 2022-07-21 | 2022-07-21 | Limiting locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221913258.7U CN218216985U (en) | 2022-07-21 | 2022-07-21 | Limiting locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218216985U true CN218216985U (en) | 2023-01-03 |
Family
ID=84652289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221913258.7U Active CN218216985U (en) | 2022-07-21 | 2022-07-21 | Limiting locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218216985U (en) |
-
2022
- 2022-07-21 CN CN202221913258.7U patent/CN218216985U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230908 Address after: 201700 room 1105, Zone D, floor 11, building 1, No. 158 Shuanglian Road, Qingpu District, Shanghai Patentee after: Shanghai Haiyi Intelligent Technology Co.,Ltd. Patentee after: HAIXING MARITIME ELECTRIC GROUP Co.,Ltd. Address before: 201702 room 1105, Zone D, 11th floor, building 1, No. 158 Shuanglian Road, Qingpu District, Shanghai Patentee before: Shanghai Haiyi Intelligent Technology Co.,Ltd. |
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| TR01 | Transfer of patent right |