CN213088560U

CN213088560U - Friction torsion protector for large-scale conveyor

Info

Publication number: CN213088560U
Application number: CN202022074541.2U
Authority: CN
Inventors: 吴文冬; 张荣健; 李文星
Original assignee: Oupute Automation Technology Co ltd
Current assignee: Oupute Automation Technology Co ltd
Priority date: 2020-09-21
Filing date: 2020-09-21
Publication date: 2021-04-30
Anticipated expiration: 2030-09-21

Abstract

Friction torsion protector for large conveyor includes: the device comprises a main shaft, a pressing plate, friction plates, a bushing, a chain wheel, a fixing nut and a transmission plate, wherein the transmission plate is fixedly connected with the pressing plate through a torsion adjusting assembly, and the torsion adjusting assembly comprises a threaded hole, a compression spring and an adjusting screw; or the torsion adjusting assembly comprises an arc-shaped clamping plate processed on the surface of the pressing plate and a claw processed on the surface of the transmission plate, the height of the arc surface of the arc-shaped clamping plate is continuously increased, and a guide piece at the end part of the claw slides and guides along the arc surface; the advantages are as follows: the structure is simple, the operation is convenient, and the cost is low; the maintenance in the later period is convenient; rotatory guide greatly reduced rotation eccentricity probability, the cooperation between location bump and the positioning groove is used and is convenient for the operator regularly to look over, inspect the eccentric operating condition, is convenient for take corresponding measure immediately, avoids the emergence of later stage serious accident.

Description

Friction torsion protector for large-scale conveyor

Technical Field

The utility model relates to a conveyer equipment technical field specifically is friction torque force protector for large-scale conveyer.

Background

The large conveyor belongs to one of the conveyors, is developed on the basis of the traditional conveyor, and is used and accepted by more and more enterprises nowadays. The appearance of large-scale conveyors further ensures the stability of conveying work, and lays a solid foundation for long-term development of the field of mechanical field in China. In the transfer process, because the phenomenon that the conveying card is very often appeared, the motor that the conveying was used continues to rotate and easily leads to with its driven pivot, gear to take place serious damage and the required torsion of large-scale conveyer is great, and emergency stop under the emergency is very difficult to operate, so need use the torsion protector, the torsion protector among the prior art has following defect: the structure is complicated, and the assembly time and the assembly cost are high; the eccentric phenomenon easily occurs in the torque force adjusting process, so the damage of the torque force protector is easily caused, and the normal operation of the large-scale conveyor is influenced.

The utility model provides a friction torque force protector for large-scale conveyer solves above-mentioned one or more technical problem.

SUMMERY OF THE UTILITY MODEL

Friction torsion protector for large conveyor includes: a main shaft 1, a pressure plate 2, a friction plate 3, a bush 4, a chain wheel 5, a fixed nut 6 and a transmission plate 7, the pressure plate 2, the friction plate 3, the bush 4, the chain wheel 5 and the fixing nut 6 are all sleeved in the rotating shaft of the main shaft 1, wherein the bush 4 is sleeved on the shaft part of the main shaft 1, the chain wheel 5 is sleeved on the outer side of the bush 4, the friction plates 3 are arranged on two sides of the chain wheel 5, the pressure plate 2 is arranged on one side of each friction plate 3, the fixing nut 6 is arranged on one side far away from the plate surface end of the main shaft 1, the fixing nut 6 is screwed on the shaft end of the main shaft 1, a transmission plate 7 is arranged between the fixed nut 6 and the pressing plate 2, the transmission plate 7 is fixedly connected with the pressing plate 2 close to the transmission plate 7 through a torsion adjusting component 8, the inner ring surface parts of the friction plates 3 on both sides of the chain wheel 5 are in contact with the outer wall of the bush 4.

Preferably, the friction torque protector for the large-scale conveyor is characterized in that the outer sides of the two friction plates 3 are sleeved with retaining rings 9 to prevent the friction plates 3 from moving (each friction plate 3 is composed of a plurality of single friction plate bodies).

Preferably, the friction torque force protector for the large conveyor, the torque force adjusting assembly 8 includes a threaded hole formed in the outer extension plate surface of the fixing nut 6 and arranged along the circumferential direction of the circle center, a blind hole formed in the circumferential direction of the circle center is also formed in the pressing plate 2 close to the fixing nut 6, a compression spring 81 is placed in the threaded hole and the blind hole corresponding to the threaded hole, an adjusting screw 82 is screwed in the threaded hole, and the compression spring 81 is always in a compressed state. The adjusting screw 82 is screwed to change the length of the hold-down spring 81 and thus the hold-down force of the friction plates 3 against the sprocket wheel 5.

Preferably, the friction torque protector for the large conveyor, the torque adjusting assembly 8 includes a plurality of arc-shaped snap-in plates 83 processed on the surface of one pressing plate 2 and distributed around the center of a circle, and a plurality of claws 84 processed on the surface of the transmission plate 7 and corresponding to the arc-shaped snap-in plates 83, the plurality of arc-shaped snap-in plates 83 are located on the same circumferential line and are concentric with the circle where the main shaft 1 is located, and each arc-shaped snap-in plate 83 is a smooth arc surface with continuously increasing height (the height of the action arc surface of the arc-shaped snap-in plate 83 is greater than the torque adjusting distance between the transmission plate 7 and the pressing plate 2); the inner side of the arc-shaped buckling plate 83 is a curved surface, the end part of the clamping jaw 84 is provided with a clamping head 841, the end part of the clamping head 841 is provided with a ball or a rolling shaft, the ball or the rolling shaft rolls along the arc surface of the arc-shaped buckling plate 83, so that the driving plate 7 is convenient to guide in the rotating process, and the positive and negative sliding processes respectively correspond to the processes that the driving plate 7 and the pressing plate 2 approach and separate from each other; the blind holes are machined in the corresponding surfaces of the transmission plate 7 and the pressing plate 2, the compression springs are arranged in the threaded blind holes of the transmission plate 7 and the pressing plate 2, compression and extension work is carried out along with the approach and the distance of the transmission plate 7 and the pressing plate 2, the pressing force between the pressing plate 2 and the friction plate 3 is changed, the transmission plate 7 is screwed once to complete the torque adjustment work of the whole torque protector, and in addition, the eccentric phenomenon in the torque adjustment process is avoided through the guide effect between the arc-shaped clamping plate 83 and the clamping jaw 84, and the working stability of the large-scale conveyor is greatly improved.

Preferably, in the friction torsion protector for a large conveyor, the smooth arc surface of the arc-shaped buckling plate 83 is processed with a guide groove, and the ball or roller is located in the guide groove and slidably guided along the guide groove (the guide groove is not shown in the figure).

Preferably, the friction torque protector for the large-scale conveyor is characterized in that the inner ring of the transmission plate 7 is provided with a thread matched with the main shaft 1.

Preferably, in the friction torque protector for the large conveyor, a blind hole parallel to the diameter direction is formed in the outer wall surface of the transmission plate 7 and used for inserting a handle to facilitate the rotation operation of the transmission plate 7.

Preferably, the friction torque protector for the large conveyor is characterized in that a plurality of positioning grooves 21 which are arranged at equal angles are annularly arranged on the surface of the pressing plate 2 which is far away from one side of the main shaft 1, positioning salient points 11 which correspond to the positioning grooves 21 in position are processed on the surface of the main shaft 1, and the positioning salient points 11 are located in the positioning grooves 21. Whether the torsion protector has the force deviating from the axis in the friction action process can be observed by observing the abrasion conditions of the positioning salient points 11 and the positioning grooves 21 in the later period, and then the pressing plate 2 can be prevented from moving due to the matching use of the positioning salient points 11 and the positioning grooves 21.

Description of the drawings:

the embodiments are further described with reference to the accompanying drawings, in which:

fig. 1 is a schematic sectional view of a friction torsion protector for a large conveyor according to embodiment 1;

FIG. 2 is a schematic sectional view of a part of a friction torque protector for a large-sized conveyor according to embodiment 2;

FIG. 3 is a schematic structural view of an arc-shaped latch plate;

the specific structure corresponding to the number is as follows:

the main shaft 1, the positioning salient points 11, the pressure plate 2, the positioning grooves 21, the friction plates 3, the bush 4, the chain wheel 5, the fixing nut 6, the transmission plate 7, the torsion adjusting component 8, the compression spring 81, the adjusting screw 82, the arc-shaped clamping plate 83, the clamping jaws 84, the clamping heads 841 and the retaining rings 9,

the following detailed description of the invention will be further described in conjunction with the above-identified drawings.

Detailed Description

Specific embodiment example 1:

friction torsion protector for large conveyor includes: a main shaft 1, a pressure plate 2, a friction plate 3, a bush 4, a chain wheel 5, a fixed nut 6 and a transmission plate 7, the pressure plate 2, the friction plate 3, the bush 4, the chain wheel 5 and the fixing nut 6 are all sleeved in the rotating shaft of the main shaft 1, wherein the bush 4 is sleeved on the shaft part of the main shaft 1, the chain wheel 5 is sleeved on the outer side of the bush 4, the friction plates 3 are arranged on two sides of the chain wheel 5, the pressure plate 2 is arranged on one side of each friction plate 3, the fixing nut 6 is arranged on one side far away from the plate surface end of the main shaft 1, the fixing nut 6 is screwed on the shaft end of the main shaft 1, a transmission plate 7 is arranged between the fixed nut 6 and the pressing plate 2, the transmission plate 7 is fixedly connected with the pressing plate 2 close to the transmission plate 7 through a torsion adjusting component 8, the inner ring surface parts of the friction plates 3 on both sides of the chain wheel 5 are in contact with the outer wall of the bush 4. The torque force adjusting assembly 8 comprises a threaded hole formed in the surface of the extension plate of the fixing nut 6 in the circumferential direction of the circle center, and a blind hole formed in the circumferential direction of the circle center is formed in the pressing plate 2 close to the fixing nut 6, a compression spring 81 is placed in the threaded hole and the blind hole corresponding to the threaded hole, an adjusting screw 82 is screwed in the threaded hole, and the compression spring 81 is always in a compression state. The adjusting screw 82 is screwed to change the length of the hold-down spring 81 and thus the hold-down force of the friction plates 3 against the sprocket wheel 5.

Furthermore, the outer sides of the two friction plates 3 are sleeved with retaining rings 9 to prevent the friction plates 3 from moving (each friction plate 3 is composed of a plurality of single friction plate bodies).

Further, the inner ring of the transmission plate 7 is provided with a thread matched with the spindle 1.

Furthermore, a plurality of positioning grooves 21 which are arranged at equal angles are annularly arranged on the surface of the pressure plate 2 which is far away from one side of the main shaft 1, positioning salient points 11 which correspond to the positioning grooves 21 in position are processed on the surface of the main shaft 1, and the positioning salient points 11 are positioned in the positioning grooves 21. Whether the torsion protector has the force deviating from the axis in the friction action process can be observed by observing the abrasion conditions of the positioning salient points 11 and the positioning grooves 21 in the later period, and then the pressing plate 2 can be prevented from moving due to the matching use of the positioning salient points 11 and the positioning grooves 21.

Specific embodiment example 2:

friction torsion protector for large conveyor includes: a main shaft 1, a pressure plate 2, a friction plate 3, a bush 4, a chain wheel 5, a fixed nut 6 and a transmission plate 7, the pressure plate 2, the friction plate 3, the bush 4, the chain wheel 5 and the fixing nut 6 are all sleeved in the rotating shaft of the main shaft 1, wherein the bush 4 is sleeved on the shaft part of the main shaft 1, the chain wheel 5 is sleeved on the outer side of the bush 4, the friction plates 3 are arranged on two sides of the chain wheel 5, the pressure plate 2 is arranged on one side of each friction plate 3, the fixing nut 6 is arranged on one side far away from the plate surface end of the main shaft 1, the fixing nut 6 is screwed on the shaft end of the main shaft 1, a transmission plate 7 is arranged between the fixed nut 6 and the pressing plate 2, the transmission plate 7 is fixedly connected with the pressing plate 2 close to the transmission plate 7 through a torsion adjusting component 8, the inner ring surface parts of the friction plates 3 on both sides of the chain wheel 5 are in contact with the outer wall of the bush 4. The torque force adjusting assembly 8 comprises a plurality of arc-shaped buckling plates 83 (the action arc length of each arc-shaped buckling plate 83 is greater than the torque adjusting distance between the transmission plate 7 and the pressing plate 2) which are processed on the surface of one pressing plate 2 and distributed around the circle center, and a plurality of clamping jaws 84 which are processed on the surface of the transmission plate 7 and correspond to the arc-shaped buckling plates 83, wherein the arc-shaped buckling plates 83 are positioned on the same circumferential line and are concentric with the circle where the main shaft 1 is positioned, and each arc-shaped buckling plate 83 is a smooth arc surface with continuously increasing height (the action arc surface height of each arc-shaped buckling plate 83 is greater than the torque adjusting distance between the transmission plate 7 and the pressing plate 2); the end part of the clamping jaw 84 is provided with a clamping head 841, the end part of the clamping head 841 is provided with a ball or a rolling shaft, the ball or the rolling shaft is in rolling contact with the curved surface of the arc-shaped clamping plate 83, so that the driving plate 7 is convenient to guide in the rotating process, and the positive and negative sliding processes respectively correspond to the processes that the driving plate 7 and the pressing plate 2 approach to and depart from each other; the blind holes are machined in the corresponding surfaces of the transmission plate 7 and the pressing plate 2, the compression springs are arranged in the threaded blind holes of the transmission plate 7 and the pressing plate 2, compression and extension work is carried out along with the approach and the distance of the transmission plate 7 and the pressing plate 2, the pressing force between the pressing plate 2 and the friction plate 3 is changed, the transmission plate 7 is screwed once to complete the torque adjustment work of the whole torque protector, and in addition, the eccentric phenomenon in the torque adjustment process is avoided through the guide effect between the arc-shaped clamping plate 83 and the clamping jaw 84, and the working stability of the large-scale conveyor is greatly improved.

Optionally, a guide groove is machined on the smooth arc surface of the arc-shaped clamping plate 83, and the ball is located in the guide groove and slidably guided along the guide groove (the guide groove is not shown in the figure); alternatively, a roller, which is vertically and rotatably installed at the end of the chuck 841, is located in the guide groove and guided along the guide groove.

Furthermore, the outer wall surface of the transmission plate 7 is provided with a blind hole parallel to the diameter direction for inserting a handle to facilitate the rotation operation of the transmission plate 7.

The advantages are as follows: the utility model relates to a friction torque force protector most outstanding characteristics are: the structure is simple, the operation is convenient, and the cost is low; the maintenance in the later period is convenient; but the rotatory eccentric probability of rotation of greatly reduced of the rotatory guide effect between arc-shaped buckle board, the jack catch, the cooperation between location bump and the positioning groove is used and is convenient for the operator regularly to look over, inspect the eccentric moving condition, is convenient for take corresponding measure immediately, avoids the emergence of later stage serious accident.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. Friction torsion protector for large conveyor includes: main shaft, clamp plate, friction disc, bush, sprocket, fixation nut, driving plate, the bush cover is in the axial region of main shaft, the sprocket cup joints the outside of bush, the both sides of sprocket all are provided with friction disc, its characterized in that: the friction plate is characterized in that a pressing plate is arranged on one side of each friction plate, a fixing nut is arranged on one side of the end, far away from the face end of the main shaft plate, the fixing nut is in threaded connection with the shaft end of the main shaft, a transmission plate is arranged between the fixing nut and the pressing plate, the transmission plate is fixedly connected with the pressing plate close to the transmission plate through a torsion adjusting assembly, and the inner ring surface portions of the friction plates on the two sides of the chain wheel are in contact with the outer wall of the bushing.

2. The friction torsion protector for the large conveyor according to claim 1, wherein: and the outer sides of the two friction plates are sleeved with check rings.

3. The friction torsion protector for the large conveyor according to claim 1, wherein: the torsion adjusting assembly comprises a threaded hole which is formed in the surface of the extension plate of the fixing nut and is arranged along the circumferential direction of the circle center, a blind hole which is arranged along the circumferential direction of the circle center is also formed in a pressing plate which is close to the fixing nut, a compression spring is placed in the threaded hole and the blind hole corresponding to the threaded hole, an adjusting screw is screwed in the threaded hole, and the compression spring is always in a compression state.

4. The friction torsion protector for the large conveyor according to claim 1, wherein: the torsion adjusting assembly comprises a plurality of arc-shaped clamping plates which are processed on the surface of a pressing plate and distributed around the circle center, and a plurality of clamping jaws which are processed on the surface of a transmission plate and correspond to the arc-shaped clamping plates, the arc-shaped clamping plates are positioned on the same circumferential line and are concentric with the circle where the main shaft is positioned, and each arc-shaped clamping plate is a smooth cambered surface with continuously increasing height; the inner side of the arc-shaped clamping plate is a curved surface, the end part of each clamping jaw is provided with a clamping head, the end part of each clamping head is provided with a ball or a roller, the balls or the rollers roll along the arc surface of the arc-shaped clamping plate, so that the transmission plate can be guided in the rotating process, and the positive and negative sliding processes respectively correspond to the processes that the transmission plate is close to and far away from the pressing plate; blind holes are processed on the corresponding surfaces of the transmission plate and the pressing plate, and the compression springs are arranged in the threaded blind holes of the transmission plate and the pressing plate.

5. The friction torsion protector for the large conveyor according to claim 4, wherein: the smooth cambered surface of arc-shaped buckle plate is processed with the guide way, and ball or roller bearing is arranged in the guide way and slides and guides along the guide way.

6. The friction torsion protector for the large conveyor according to claim 1, wherein: and the inner ring of the transmission plate is provided with threads matched with the main shaft.

7. The friction torsion protector for the large conveyor according to claim 4, wherein: the outer wall surface of the transmission plate is provided with a blind hole parallel to the diameter direction and used for inserting a handle to facilitate the rotation operation of the transmission plate.

8. The friction torsion protector for the large conveyor according to claim 1, wherein: the pressing plate surface far away from one side of the main shaft is annularly provided with a plurality of positioning grooves which are arranged at equal angles, positioning salient points corresponding to the positions of the positioning grooves are processed on the surface of the main shaft, and the positioning salient points are positioned in the positioning grooves.