CN214878046U - Mechanical torque limiting device for equipment anti-blocking and anti-blocking - Google Patents
Mechanical torque limiting device for equipment anti-blocking and anti-blocking Download PDFInfo
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- CN214878046U CN214878046U CN202120914463.4U CN202120914463U CN214878046U CN 214878046 U CN214878046 U CN 214878046U CN 202120914463 U CN202120914463 U CN 202120914463U CN 214878046 U CN214878046 U CN 214878046U
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- speed reducer
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- rotary screw
- blocking
- rotation arm
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Abstract
A mechanical torque limiting device for equipment anti-blocking and anti-blocking comprises a rotary screw rod supporting frame, wherein the rotary screw rod supporting frame is fixed on an equipment shell, a rotary shaft is fixed at one end of the rotary screw rod supporting frame, a rotary screw rod is installed on the rotary shaft, a speed reducer anti-rotation arm is fixed on a corresponding speed reducer, and the rotary screw rod is sleeved with the speed reducer anti-rotation arm; a spring is sleeved on one side, located on the speed reducer anti-rotation arm, of the rotating screw, and the other end of the spring is limited through a limiting piece; the sensor is installed just to speed reducer tumbler one side, and when the speed reducer takes place relative movement because of putty card material, the speed reducer prevents that tumbler and sensor stagger. The utility model provides a pair of stifled for anti-sticking mechanical type moment of torsion limiting device is prevented to equipment, thereby prevent that equipment from causing equipment to damage because of the sudden putty of certain reason or the card is stifled.
Description
Technical Field
The utility model relates to a conveying equipment, especially a mechanical type moment of torsion limiting device is used to stifled anti-sticking is prevented to equipment.
Background
The scraper conveyor is equipment for transferring materials through a driving wheel, a driven wheel and a conveying chain; the screw machine is equipment for transferring materials by driving a helical blade to transfer through a driving device; the bucket elevator is equipment for transferring materials through a driving wheel, a driven wheel and a lifting chain. In order to prevent the equipment from being damaged due to sudden material blockage or blockage caused by some reason, an overload protection device (an overcurrent protection device or a torque limiter) is required, but the cost of the overload protection device is high.
Disclosure of Invention
The utility model aims to solve the technical problem that a mechanical type moment of torsion limiting device is used to equipment anti-blocking anti-sticking is provided, thereby prevent equipment from causing equipment damage because of certain reason putty suddenly or the card is stifled.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:
a mechanical torque limiting device for equipment anti-blocking and anti-blocking comprises a rotary screw rod supporting frame, wherein the rotary screw rod supporting frame is fixed on an equipment shell, a rotary shaft is fixed at one end of the rotary screw rod supporting frame, a rotary screw rod is installed on the rotary shaft, a speed reducer anti-rotation arm is fixed on a corresponding speed reducer, and the rotary screw rod is sleeved with the speed reducer anti-rotation arm; a spring is sleeved on one side, located on the speed reducer anti-rotation arm, of the rotating screw, and the other end of the spring is limited through a limiting piece; the sensor is installed just to speed reducer tumbler one side, and when the speed reducer takes place relative movement because of putty card material, the speed reducer prevents that tumbler and sensor stagger.
And a limiting plate is fixed on the rotating shaft.
The locating part is a spring sleeve, and one end of the spring sleeve is locked and limited through a locking nut and an adjusting nut.
The utility model relates to an equipment prevents stifled anti-sticking and uses mechanical type moment of torsion limiting device has following technological effect:
1) the equipment can be fed back quickly when the equipment is suddenly blocked or blocked, and the equipment is stopped, so that the equipment is prevented from being damaged. The size, length and pretightening force of the spring can be calculated according to the use requirement, and then the optimal configuration is selected, so that the cost is optimized.
2) The adjustable rotary screw is adopted, so that the force applied to the spring by the speed reducer through the rotation preventing arm of the speed reducer is always vertical to the axis of the spring, and the detection precision can be achieved by adjusting the adjusting nut according to the actual running condition of the equipment.
3) The sensor arranged at the transmission part adopts a time-delay working mode, so that the normal starting of the equipment is ensured, and the equipment is put into operation after stable operation.
Drawings
The invention will be further explained with reference to the following figures and examples:
fig. 1 is a top view of the present invention.
Fig. 2 is a front view of the present invention.
In the figure: the device comprises a rotary screw support frame 1, an equipment shell 2, a rotary shaft 3, a rotary screw 4, a speed reducer 5, a speed reducer antirotation arm 6, a spring 7, a limiting part 8, a sensor 9, a limiting plate 10, a sensor fixing support 11, a locking nut 12 and an adjusting nut 13.
Detailed Description
As shown in fig. 1-2, a mechanical torque limiting device for preventing equipment from being blocked comprises a rotating screw support frame 1, wherein the rotating screw support frame 1 is fixedly installed on an equipment housing 2 through bolts, and the equipment housing 2 can be one of a scraper conveyor, a screw conveyor and a bucket elevator. The rotating shaft 3 is fixed at one end of the rotating screw support frame 1, a sleeve is welded at the end of the rotating screw 4, and the sleeve is rotatably sleeved on the rotating shaft 3. A reducer tumbler 6 is fixed on the corresponding reducer 5 shell through a bolt. The horizontal part of the speed reducer anti-rotation arm 6 is freely sleeved on the rotating screw rod 4. The rotating screw rod 4 is sleeved with a spring 7 and a limiting part 8 on one side of the speed reducer anti-rotation arm 6, the limiting part 8 is a spring sleeve, and one end of the spring sleeve is locked and limited through a locking nut 12 and an adjusting nut 13. The sensor 9 is installed just to speed reducer antirotation arm 6 one side, and the sensor 9 passes through sensor fixed bolster 11 to be fixed on rotatory screw rod support frame 1.
A limiting plate 10 is fixed on the rotating shaft 3. The speed reducer 5 can be limited by moving rightwards.
The working principle and the process are as follows: firstly, calculating the shaft power required by normal operation of the equipment according to the use requirement of the equipment, calculating a corresponding torque value according to the shaft power, then selecting a spring 7 with a proper size and length, and compressing the spring 7 to a preset length through an adjusting nut 13 (conversion can be carried out by measuring the length from an anti-rotation arm 6 of the speed reducer to a limiting part 8). The spring 7 is given an initial pressure, so that the pressure of the speed reducer antirotation arm 6 on the spring 7 does not cause the steel plate on the speed reducer antirotation arm 6 to be out of the detection range of the sensor 9 when the equipment is in normal operation. When the device is blocked or jammed suddenly due to some reason, the output force of the speed reducer can be increased (the speed reducer 5 is directly connected with a driving shaft in the device, and the speed reducer can move left and right when the material is blocked or jammed in an inner chain), the force applied to the spring 7 by the speed reducer rotation preventing arm 6 is larger than the pretightening force of the spring, so that the steel plate on the speed reducer rotation preventing arm 6 is separated from the detection range of the sensor 9, the sensor 9 transmits a signal to the controller, and the controller controls the device to stop.
Claims (3)
1. The utility model provides a mechanical type moment of torsion limiting device is used to equipment anti-blocking anti-sticking which characterized in that: the device comprises a rotary screw support frame (1), wherein the rotary screw support frame (1) is fixed on a device shell (2), one end of the rotary screw support frame (1) is fixedly provided with a rotary shaft (3), the rotary shaft (3) is provided with a rotary screw (4), a speed reducer anti-rotation arm (6) is fixed on a corresponding speed reducer (5), and the speed reducer anti-rotation arm (6) is sleeved on the rotary screw (4); a spring (7) is sleeved on one side, located on the anti-rotation arm (6) of the speed reducer, of the rotating screw (4), and the other end of the spring (7) is limited through a limiting piece (8); one side of the anti-rotation arm (6) of the speed reducer is provided with a sensor (9) in a right-facing way, and when the speed reducer (5) moves relatively due to material blockage and material blocking, the anti-rotation arm (6) of the speed reducer is staggered with the sensor (9).
2. The mechanical torque limiting device for preventing the equipment from being blocked and blocked according to claim 1, wherein: a limiting plate (10) is fixed on the rotating shaft (3).
3. The mechanical torque limiting device for preventing the equipment from being blocked and blocked according to claim 1, wherein: the limiting piece (8) is a spring sleeve, and one end of the spring sleeve is locked and limited through a locking nut (12) and an adjusting nut (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120914463.4U CN214878046U (en) | 2021-04-29 | 2021-04-29 | Mechanical torque limiting device for equipment anti-blocking and anti-blocking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120914463.4U CN214878046U (en) | 2021-04-29 | 2021-04-29 | Mechanical torque limiting device for equipment anti-blocking and anti-blocking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214878046U true CN214878046U (en) | 2021-11-26 |
Family
ID=78889364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120914463.4U Active CN214878046U (en) | 2021-04-29 | 2021-04-29 | Mechanical torque limiting device for equipment anti-blocking and anti-blocking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214878046U (en) |
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2021
- 2021-04-29 CN CN202120914463.4U patent/CN214878046U/en active Active
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