CN219623197U - Pin breaking alarm device of speed reducer - Google Patents
Pin breaking alarm device of speed reducer Download PDFInfo
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- CN219623197U CN219623197U CN202320654042.1U CN202320654042U CN219623197U CN 219623197 U CN219623197 U CN 219623197U CN 202320654042 U CN202320654042 U CN 202320654042U CN 219623197 U CN219623197 U CN 219623197U
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- speed reducer
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Abstract
The utility model discloses a pin breakage alarm device for a speed reducer, which comprises a speed reducer body, wherein the speed reducer body is provided with a shaft and a belt cover, the shaft extends to the outside of the belt cover, the end part of the shaft is provided with a safety pin structure, the safety pin structure is arranged on one side of the speed reducer body, the safety cover is sleeved outside the safety pin structure, the left side of the safety cover is provided with a sensor, the sensor is fixedly arranged on the belt cover through a bracket, and the sensor is electrically connected with an alarm. According to the utility model, the safety cover is additionally arranged outside the safety pin structure, and the sensor is arranged on one side of the safety cover, so that the sensor detects the motion state of the safety cover, and therefore, when the safety pin breaks to stop rotating the safety cover, the sensor immediately sends a signal to the alarm to warn staff.
Description
Technical Field
The utility model relates to the technical field of speed reducers, in particular to a pin breakage alarm device for a speed reducer.
Background
In the fire grate production process, a large amount of coal is consumed, and when the conveyor belt is used for transporting the coal, a speed reducer is required to be used for connecting a motor and the conveyor belt, so that the conveyor belt obtains the required transportation speed, the transportation stability is ensured, and the normal production is realized. In actual production, when external factors influence or external equipment fails, the output end of the speed reducer is clamped and stops rotating, one end connected with the motor still rotates, the motor is not stopped in time, the internal gear of the speed reducer is damaged, the rotating shaft is damaged, and the production is influenced, even the speed reducer is scrapped; the prior art is generally provided with a safety pin to avoid damage to the speed reducer caused by overload, but after the safety pin is broken, a worker usually can hardly find the fault in a short time, and the fault can be found when the supply of coal is not required, so that the production efficiency is seriously influenced, and an alarm mechanism is arranged, but the structure of the alarm mechanism is complex, and the cost is high. Therefore, a pin breakage alarm device of a speed reducer needs to be provided.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides a broken pin alarm device for a speed reducer, which solves the problems that after a safety pin is broken in the background art, a worker usually can not find the fault in a short time, and the production efficiency is seriously affected when the supply of coal is insufficient, and an alarm mechanism is arranged, but the structure of the alarm mechanism is complex and the cost is high.
To achieve the above object, the present utility model proposes the following techniques:
the utility model provides a broken pin alarm device of speed reducer, includes the speed reducer body, and the speed reducer body is provided with a axle and belt cover, and a axle extends to the belt cover outside and the tip is provided with the insurance round pin structure, and insurance round pin structure sets up in speed reducer body one side, and its outer cover is equipped with the insurance cover, and insurance cover left side is provided with the sensor, and the sensor passes through support fixed mounting on the belt cover, and sensor electric connection has the alarm.
Through outside cover at the insurance round pin establish the insurance cover to and set up the sensor in insurance cover one side, the sensor detects the insurance cover that the state of insurance round pin promptly, and during normal operating, the insurance cover rotates along with an axle together, when breaking down and leading to the insurance round pin to appear after breaking down, the insurance cover stops rotating along with an axle, and the sensor detects insurance cover motion state change this moment, sends the signal to the alarm, and the alarm is glimmered and is sounded, alerts the staff, can perceive the speed reducer unusual fast.
Further, the sensor is a speed sensor, is horizontally arranged transversely, the axis is the same as the center of the safety cover in height, one side of the sensitive element is close to the safety cover, and the safety cover is detachably connected to the outside of the safety pin structure.
Further, the safety cover is annular, the section unilateral of the safety cover is in a ladder shape, the left inner diameter of the safety cover is larger than the right inner diameter of the safety cover, the safety pin structure comprises a safety pin, a safety pin inserting groove is formed in the safety cover, the top surface of the safety pin inserting groove is the same as the top surface of the left inner wall of the safety cover in height, a threaded hole is formed in the right top of the safety pin inserting groove in a penetrating mode through the safety cover, and screws are connected in the threaded hole in a threaded mode.
Further, the safety pin structure further comprises a second transmission sleeve, a key, a first transmission sleeve and a spring retainer ring, the second transmission sleeve and the first transmission sleeve are sleeved outside a shaft, one side, close to the second transmission sleeve, of the second transmission sleeve is correspondingly provided with a safety pin installation groove, the safety pin is connected in the safety pin installation groove in a clamping mode, the second transmission sleeve is connected with the first shaft through a key groove, and the spring retainer ring is arranged on the right end face of the second transmission sleeve.
Further, the safety cover and the shaft are coaxial, the inner diameter of the left side of the safety cover is larger than twice the distance from the top of the safety pin to the shaft center, and the inner diameter of the right side of the safety cover is slightly larger than the outer diameter of the transmission sleeve.
Further, a belt pulley is arranged outside the transmission sleeve, and is arranged in the belt cover and externally connected with the power end through a belt.
Compared with the prior art, the comprehensive effects brought by the utility model comprise: according to the utility model, the safety cover is additionally arranged outside the safety pin structure, and the sensor is arranged at one side of the safety cover, so that the sensor detects the motion state of the safety cover, and when the safety pin breaks to stop rotating the safety cover, the sensor immediately sends a signal to the alarm to warn staff.
Drawings
FIG. 1 is a schematic front view of the overall structure of an embodiment of the present utility model;
FIG. 2 is a schematic top view of the overall structure of an embodiment of the present utility model;
FIG. 3 is a schematic cross-sectional view of an embodiment of a safety pin structure and a safety shield of the present utility model;
fig. 4 is a schematic side view of a safety cover according to an embodiment of the utility model.
Legend description: 1. a screw; 2. a safety pin; 3. a spring retainer ring; 4. a key; 5. a transmission sleeve II; 6. a safety cover; 7. a first transmission sleeve; 8. a shaft; 9. a belt cover; 10. a speed reducer body; 11. an output shaft; 12. a bracket; 13. a sensor; 14. an alarm.
Detailed Description
The following description of the embodiments of the present utility model will be made in detail and with reference to the accompanying drawings, wherein it is apparent that the embodiments described are only some, but not all embodiments of the present utility model. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are within the scope of the present utility model based on the embodiments of the present utility model.
As shown in fig. 1 to 4, a broken pin alarm device of a speed reducer comprises a speed reducer body 10, wherein the speed reducer body 10 is provided with a shaft 8 and a belt cover 9, the shaft 8 extends to the outside of the belt cover 9, the end part of the shaft is provided with a safety pin structure, the safety pin structure is arranged on one side of the speed reducer body 10, the safety pin structure is arranged outside the speed reducer, the safety pin 2 is more convenient to install and replace, meanwhile, the alarm structure is convenient to install, the safety cover 6 is sleeved outside the safety pin structure, the left side of the safety cover 6 is provided with a sensor 13, the safety cover 6 covers the safety pin structure, so that when the safety pin 2 is broken, compared with the sensor 13, the safety pin structure is detected to be half rotated by half, the detection area of the sensor 13 is increased, and the detection is more accurate;
the sensor 13 is fixedly arranged on the belt cover 9 through the bracket 12, the sensor 13 is electrically connected with the alarm 14, the sensor 13 detects the change of the motion state of the safety cover 6, and the alarm 14 sends a signal to inform the staff, so that the staff can quickly know the fault of the speed reducer.
The safety pin structure comprises a safety pin 2, a transmission sleeve II 5, a key 4, a transmission sleeve I7 and a spring retainer ring 3, wherein the transmission sleeve II 5 and the transmission sleeve I7 are sleeved outside a shaft 8, one side, which is close to the transmission sleeve II and the transmission sleeve I, is correspondingly provided with a safety pin mounting groove, the safety pin 2 is connected in the safety pin mounting groove in a clamping way, the transmission sleeve II 5 is connected with the shaft 8 through a key groove of the key 4, the spring retainer ring 3 is arranged on the right end surface of the transmission sleeve II, the spring retainer ring 3 is fixedly limited in the horizontal direction of the shaft 8 and the transmission sleeve II, a belt pulley is arranged outside the transmission sleeve I7 and is arranged in a belt cover 9 and externally connected with a power end through a belt, and the belt cover 9, the belt pulley and the transmission structure adopt the prior art;
the external power end drives the first transmission sleeve 7 to rotate through a belt, the first transmission sleeve 7 drives the second transmission sleeve 5 to synchronously rotate through the safety pin 2, the second transmission sleeve 5 is connected with a shaft 8 through a key slot, the shaft 8 rotates along with the transmission sleeve, then the shaft 8 continuously transmits torque to other shafts in the speed reducer, and finally the transmission sleeve is output through an output shaft 11 to be connected with external equipment. When external equipment is blocked, each shaft in the speed reducer cannot normally rotate, the power end is still inputting torque, when overload reaches a certain degree, the safety pin 2 between the first transmission sleeve 7 and the second transmission sleeve 5 breaks, only the first transmission sleeve 7 continues to rotate, and the second transmission sleeve 5 and the first shaft 8 stop rotating, so that the internal structure of the speed reducer is prevented from being damaged due to long-time overload.
As shown in fig. 1 and 2, the sensor 13 is a speed sensor, and is horizontally arranged, the axis is the same as the center height of the safety cover 6, the speed sensor is selected to detect the rotation of the safety cover 6, when the safety cover 6 rotates normally, the sensor 13 does not send a signal, when the safety pin 2 breaks, the safety cover 6 stops rotating, the sensor 13 sends a signal, one side of the sensitive element is close to the safety cover 6, and the safety cover 6 is detachably connected to the outside of the safety pin structure.
As shown in fig. 3 and 4, the safety cover 6 is in a ring shape, the single side of the section of the safety cover 6 is in a ladder shape, the inner diameter of the left side of the safety cover 6 is larger than the inner diameter of the right side, the safety cover 6 and a shaft 8 are coaxial, the inner diameter of the left side of the safety cover 6 is larger than twice the distance from the top of the safety pin 2 to the shaft 8, the inner diameter of the right side of the safety cover 6 is slightly larger than the outer diameter of the transmission sleeve two 5, and the safety cover 6 can be fixed on the right side of the safety pin structure and is not influenced by the structure on the left side at the same time, when the safety pin 2 breaks, the safety cover 6 is ensured to be in a completely static state;
the safety pin inserting groove is formed in the safety cover 6, the top surface of the safety pin inserting groove is the same as the top surface of the left inner wall of the safety cover 6, the safety pin 2 is prevented from affecting the normal installation of the safety cover 6, the top of the right side of the safety pin inserting groove penetrates through the safety cover 6 to form a threaded hole, the screw 1 is connected with the screw in the threaded hole in a threaded manner, the safety cover 6 is fixedly connected with the safety pin structure through the screw 1, and the top end of the screw 1 is tightly propped against the right top surface of the safety pin 2.
When the alarm device is used, the safety pin structure is provided with the safety pin 2, then the safety cover 6 is sleeved outside the safety pin structure, then the screw 1 is screwed into the threaded hole of the safety cover 6, the end part of the screw 1 is tightly pressed against the safety pin 2, the safety cover 6 is fixed on the safety pin structure, then the sensor 13 is fixed on one side of the safety cover 6 through the bracket 12, and the sensor 13 is connected with the alarm 14 and an external power supply. When the speed reducer rotates normally, the safety cover 6 rotates normally, the sensor 13 does not send a signal to the alarm 14, when a fault occurs, the safety pin 2 is broken, only the first transmission sleeve 7 rotates, the safety cover 6 fixedly connected with the second transmission sleeve 5 stops rotating, the sensor 13 sends a signal to the alarm 14, and the alarm 14 alarms staff.
In the present utility model, unless explicitly specified and defined otherwise, the terms "mounted," "disposed," "connected," "secured," "rotated," and the like are to be construed broadly, and for example, may be fixedly connected, may be detachably connected, or may be integrated, unless otherwise explicitly defined, and the specific meaning of the above terms in the present utility model may be understood by those skilled in the art according to circumstances.
Although embodiments of the present utility model have been shown and described in detail, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made hereto without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.
Claims (6)
1. The utility model provides a broken pin alarm device of speed reducer, its characterized in that includes the speed reducer body, the speed reducer body is provided with a axle and belt cover, a axle extends to the belt cover outside and the tip is provided with the insurance round pin structure, the insurance round pin structure sets up in speed reducer body one side, and its outer cover is equipped with the insurance cover, the insurance cover left side is provided with the sensor, the sensor passes through support fixed mounting and covers at the belt, sensor electric connection has the alarm.
2. The alarm device for broken pins of speed reducer according to claim 1, wherein the sensor is a speed sensor, and is horizontally arranged, the axis is the same as the center of the safety cover, one side of the sensitive element is close to the safety cover, and the safety cover is detachably connected to the outside of the safety pin structure.
3. The alarm device for breaking pins of a decelerator according to claim 2, wherein the guard is ring-shaped, the single side of the section of the guard is ladder-shaped, the inner diameter of the left side of the guard is larger than the inner diameter of the right side of the guard, the guard structure comprises a guard pin, a guard pin inserting slot is formed in the guard, the top surface of the guard pin inserting slot is the same as the top surface of the inner wall of the left side of the guard, a threaded hole is formed in the top of the right side of the guard pin inserting slot, and a screw is connected in the threaded hole.
4. The device for alarming broken pins of a speed reducer according to claim 3, wherein the safety pin structure further comprises a second transmission sleeve, a key, a first transmission sleeve and a spring retainer ring, the second transmission sleeve and the first transmission sleeve are sleeved outside a shaft, one side, close to the second transmission sleeve and the first transmission sleeve, is correspondingly provided with a safety pin mounting groove, the safety pin is connected in the safety pin mounting groove in a clamping mode, the second transmission sleeve is connected with the first shaft through a key groove, and the spring retainer ring is arranged on the right side end face of the second transmission sleeve.
5. The alarm device for breaking pins of a decelerator according to claim 4, wherein the guard cover is coaxial with a shaft, the inner diameter of the left side of the guard cover is larger than twice the distance from the top of the guard pin to the shaft, and the inner diameter of the right side of the guard cover is slightly larger than the outer diameter of the driving sleeve.
6. The alarm device for pin breaking of speed reducer according to claim 4, wherein a belt pulley is arranged outside the transmission sleeve, and the belt pulley is installed in the belt cover and externally connected with the power end through a belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320654042.1U CN219623197U (en) | 2023-03-29 | 2023-03-29 | Pin breaking alarm device of speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320654042.1U CN219623197U (en) | 2023-03-29 | 2023-03-29 | Pin breaking alarm device of speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219623197U true CN219623197U (en) | 2023-09-01 |
Family
ID=87775379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320654042.1U Active CN219623197U (en) | 2023-03-29 | 2023-03-29 | Pin breaking alarm device of speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219623197U (en) |
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2023
- 2023-03-29 CN CN202320654042.1U patent/CN219623197U/en active Active
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