CN217501645U

CN217501645U - Coal mine mining machine cable traction tension overload protection device

Info

Publication number: CN217501645U
Application number: CN202221373842.8U
Authority: CN
Inventors: 孙旭; 张荣秋; 周广建
Original assignee: Shandong Quanxing Mining Refco Group Ltd
Current assignee: Shandong Quanxing Mining Refco Group Ltd
Priority date: 2022-06-02
Filing date: 2022-06-02
Publication date: 2022-09-27
Anticipated expiration: 2032-06-02

Abstract

The utility model discloses a coal mine machine cable traction pulling force overload protection device, which comprises an installation box and cables, wherein the installation box is internally provided with two groups of fixed shells which are symmetrically distributed, fixed rods are welded in the fixed shells, first springs are sleeved on the fixed rods, second springs are sleeved on the fixed rods, first fixed blocks are arranged at the right ends of the fixed shells, second fixed blocks are arranged at the right ends of the fixed shells, when the pulling force applied to the cables is suddenly increased, the second fixed blocks are driven to move by generating pushing force to the second fixed blocks so as to push the first fixed blocks, the first fixed blocks compress the first springs and then the second springs, friction force can be generated in the moving process of the first fixed blocks and the second fixed blocks, and the rebounding force generated in the process of compressing the first springs and the second springs has the buffer effect on the pulling force generated by the cables, thereby avoiding damage to the protection device caused by the suddenly increased tension of the cable.

Description

Cable traction tension overload protection device for coal mining machine in coal mine

Technical Field

The utility model belongs to the technical field of the colliery, concretely relates to colliery coal-winning machine cable pulls pulling force overload protection device.

Background

The power supply of the coal mining machine in the coal mine adopts a cable power supply mode, the cable traction device of the coal mining machine is mechanically connected with the cable traction clamp, the cable of the coal mining machine is fixed in the cable traction clamp, the cable traction clamp and the cable are dragged by the cable traction device of the coal mining machine, and the cable of the coal mining machine enters the coal mining machine through the cable leading-in device and runs in a cable groove of a conveyor of a coal face. In the actual production process of a coal mine, sundries such as timber, metal support materials, gangue, coal and the like entering a conveyor cable groove or a coal mining machine cable traction clamp drop out of the cable groove inevitably, workers find that the coal mining machine cable traction tension is overloaded in time, the coal mining machine cable or the cable traction clamp is broken or damaged in serious time, serious electromechanical accidents are caused, the safety production and the high-efficiency output of the coal mine are influenced, high-strength electric sparks are generated when the coal mining machine cable is broken or damaged and short circuits occur, coal dust or gas explosion is caused, serious coal mine safety accidents are caused, therefore, a traction tension overload protection device is often installed on the cable to protect the cable or provide warning information for the workers, but the existing traction tension overload protection device often causes the device damage due to the abrupt increase of the cable tension in the working process, and cannot give a warning to the workers, or the cable can not be locked when the tension of the cable is increased, so that the tension of the cable is continuously increased and finally damaged.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a colliery coal-winning machine cable pulls pulling force overload protection device and comes into operation to solve the current pulling force overload protection device that provides among the above-mentioned background art and often can lead to the device to damage because of the tensile precipitous increase of cable in the course of the work, thereby can't send the warning to the staff, perhaps can't lock to the cable when the cable pulling force increases, lead to the cable pulling force to last the problem that increases final damage.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a colliery coal-winning machine cable pulls pulling force overload protection device, includes install bin and cable, be equipped with the set casing in the install bin, the quantity of set casing is provided with two sets ofly, the set casing is the symmetric distribution, the dead lever has been welded in the set casing, first spring has been cup jointed on the dead lever, the second spring has been cup jointed on the dead lever, the set casing right-hand member is equipped with first fixed block, the set casing right-hand member is equipped with the second fixed block.

Preferably, the install bin both sides are equipped with the collar, the quantity of collar is provided with two sets ofly, the collar is the symmetric distribution, be equipped with magnetism in the collar and inhale the piece, the quantity of magnetism is inhaled the piece and is provided with two sets ofly, magnetism inhales the piece and is the symmetric distribution, magnetism inhales the piece and distributes in the both sides of cable, the collar both sides are equipped with the mounting box, the collar both sides are equipped with power supply unit.

Preferably, the second spring is sleeved outside the first spring, the first fixing block and the second fixing block are both sleeved on the fixing rod, the first fixing block is sleeved outside the second fixing block, two ends of the first spring are respectively fixedly connected with the fixing shell and the first fixing block, and the left end of the second spring is fixedly connected with the fixing shell.

Preferably, the nut is sleeved on the fixing rod in a threaded manner, the nut is arranged at the right end of the second fixing block, the fixing ring is sleeved on the cable, the cable penetrates through the installation box, the second fixing block is distributed on two sides of the fixing ring, and the fixing ring is fixedly connected with the second fixing block.

Preferably, the quantity of mounting box is provided with two sets ofly, the mounting box is the symmetric distribution, be equipped with the iron set in the mounting box, the coil has been cup jointed on the iron set, it is equipped with the third spring to inhale between piece and the mounting box to inhale, the third spring run through the collar and respectively with inhale piece and mounting box fixed connection.

Preferably, the number of the power supply devices is two, the power supply devices are symmetrically distributed, the power supply devices are respectively arranged corresponding to the mounting box, the coil is connected with the power supply devices, and the control device is arranged above the mounting box and connected with the power supply devices.

The utility model has the advantages of:

(1) the utility model has the advantages that two groups of fixed shells which are symmetrically distributed are arranged in the installation box, the fixed rods are welded in the fixed shells, and the first springs and the second springs are sleeved on the fixed rods, a first fixed block and a second fixed block are arranged at the right end of the fixed rod, the positions of the first fixed block and the second fixed block are limited by nuts, the cable is fixedly connected with the second fixed block by a fixing ring, when the pulling force applied to the cable is suddenly increased, the second fixing block is pushed by the pushing force generated on the second fixing block, so that the second fixing block moves to push the first fixing block, the first fixing block compresses the first spring and then the second spring, friction force is generated in the moving process of the first fixing block and the second fixing block, and the resilience force generated in the process of compressing the first spring and the second spring has a buffering effect on the tension force generated by the cable, so that the damage of the suddenly increased tension force of the cable to the protection device is avoided;

(2) the utility model discloses a be equipped with the collar of two sets of symmetries in the install bin both sides, be equipped with the magnetism piece of inhaling of two sets of symmetries in the mount bin for magnetism is inhaled the piece and is distributed in the both sides of cable, protection device gives controlling means with signal transmission when the pulling force that the cable received reaches the peak value, controlling means disconnection power supply unit's power, thereby coil and iron pole no longer produce magnetic attraction, make two magnetism inhale the piece actuation, thereby clip the cable, the pulling force of avoiding the cable lasts the increase and finally leads to the damage.

Drawings

Fig. 1 is a schematic structural perspective view of the present invention;

fig. 2 is a schematic perspective view of the cable of the present invention;

fig. 3 is an exploded view of the stationary housing of the present invention;

FIG. 4 is a perspective view of the magnetic block of the present invention;

fig. 5 is a sectional view of the mounting box of the present invention.

In the figure: 1. installing a box; 2. a cable; 3. a fixing ring; 4. a stationary case; 5. fixing the rod; 6. a first spring; 7. a second spring; 8. a first fixed block; 9. a second fixed block; 10. a nut; 11. a mounting ring; 12. mounting a box; 13. a power supply device; 14. a control device; 15. a magnetic block; 16. a third spring; 17. an iron rod; 18. and a coil.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a coal mine machine cable pulls pulling force overload protection device as shown in fig. 1-5, including install bin 1 and cable 2, be equipped with set casing 4 in the install bin 1, the quantity of set casing 4 is provided with two sets ofly, set casing 4 is symmetric distribution, welding has dead lever 5 in the set casing 4, first spring 6 has been cup jointed on the dead lever 5, second spring 7 has been cup jointed on the dead lever 5, set casing 4 right-hand member is equipped with first fixed block 8, set casing 4 right-hand member is equipped with second fixed block 9, produce thrust to second fixed block 9 when the pulling force that cable 2 received increases suddenly and make second fixed block 9 remove and then promote first fixed block 8, rethread first fixed block 8 compression first spring 6, second spring 7 again, can produce frictional force at the in-process that first fixed block 8 and second fixed block 9 removed, including the pulling force that the in-process resilience force of compressing first spring 6 and second spring 7 produced to cable 2 A damping effect is generated so as to avoid damage to the protection device caused by the suddenly increased tension of the cable 2.

1 both sides of install bin are equipped with collar 11, the quantity of collar 11 is provided with two sets ofly, collar 11 is the symmetric distribution, be equipped with magnetism in the collar 11 and inhale piece 15, the quantity of magnetism piece 15 is provided with two sets ofly, magnetism piece 15 is the symmetric distribution, magnetism piece 15 distributes in the both sides of cable 2, collar 11 both sides are equipped with mounting box 12, collar 11 both sides are equipped with power supply unit 13, protection device gives controlling means 14 with signal transmission when the pulling force that cable 2 received reaches the peak value, controlling means 14 power off power supply unit 13, thereby coil 18 and iron set 17 do not produce magnetic attraction again, make two magnetism inhale piece 15 actuation, thereby clip cable 2, avoid cable 2's pulling force to last the increase finally to lead to the damage.

Second spring 7 cup joints at first spring 6 outsidely, first fixed block 8 all cup joints on dead lever 5 with second fixed block 9, first fixed block 8 cup joints outside second fixed block 9, the both ends of first spring 6 respectively with set

casing

4 and 8 fixed connection of first fixed block, the left end and the set casing 4 fixed connection of second spring 7, the in-process of the removal of first fixed block 8 and second fixed block 9 can produce frictional force, thereby produce certain cushioning effect to cable 2's pulling force.

The nut 10 has been cup jointed to the screw thread on the dead lever 5, and the nut 10 sets up the right-hand member at second fixed block 9, has cup jointed solid fixed ring 3 on the cable 2, and cable 2 runs through install bin 1, and second fixed block 9 distributes in solid fixed ring 3's both sides, gu fixed ring 3 and second fixed block 9 fixed connection make cable 2 be connected with second fixed block 9 through setting up solid fixed ring 3, compress second fixed block 9 when cable 2's pulling force increases suddenly.

The quantity of mounting box 12 is provided with two sets ofly, mounting box 12 is the symmetric distribution, be equipped with iron set 17 in mounting box 12, the coil 18 has been cup jointed on the iron set 17, it is equipped with third spring 16 to inhale between piece 15 and the mounting box 12 to inhale, third spring 16 runs through collar 11 and respectively with inhale piece 15 and mounting box 12 fixed connection, make coil 18 circular telegram through power supply unit 13, thereby make mounting box 12 to inhale 15 production magnetic attraction of piece, make the magnetic attraction of piece 15 to both sides remove.

The number of the power supply devices 13 is two, the power supply devices 13 are symmetrically distributed, the power supply devices 13 are respectively arranged corresponding to the mounting box 12, the coil 18 is connected with the power supply devices 13, the control device 14 is arranged above the mounting box 1, the control device 14 is connected with the power supply devices 13, and the power supply of the power supply devices 13 is disconnected through the control device 14, so that the two magnetic suction blocks 15 attract towards the middle, and the cable 2 is clamped to avoid continuous increase of the tensile force.

Claims

1. The utility model provides a colliery coal-winning machine cable pulls pulling force overload protection device which characterized in that: including install bin (1) and cable (2), be equipped with set casing (4) in install bin (1), the quantity of set casing (4) is provided with two sets ofly, set casing (4) are the symmetric distribution, welded dead lever (5) in set casing (4), first spring (6) have been cup jointed on dead lever (5), second spring (7) have been cup jointed on dead lever (5), set casing (4) right-hand member is equipped with first fixed block (8), set casing (4) right-hand member is equipped with second fixed block (9).

2. The coal mining machine cable traction tension overload protection device according to claim 1, characterized in that: install bin (1) both sides are equipped with collar (11), the quantity of collar (11) is provided with two sets ofly, collar (11) are the symmetric distribution, be equipped with magnetism in collar (11) and inhale piece (15), the quantity of inhaling piece (15) is provided with two sets ofly, it is the symmetric distribution to inhale piece (15), magnetism is inhaled piece (15) and is distributed in the both sides of cable (2), collar (11) both sides are equipped with mounting box (12), collar (11) both sides are equipped with power supply unit (13).

3. The coal mining machine cable traction tension overload protection device according to claim 1, characterized in that: second spring (7) cup joint at first spring (6) outside, first fixed block (8) all cup joint on dead lever (5) with second fixed block (9), first fixed block (8) cup joint outside second fixed block (9), the both ends of first spring (6) respectively with set casing (4) and first fixed block (8) fixed connection, the left end and the set casing (4) fixed connection of second spring (7).

4. The coal mining machine cable traction tension overload protection device according to claim 1, characterized in that: nut (10) have been cup jointed to the screw thread on dead lever (5), nut (10) set up the right-hand member at second fixed block (9), gu fixed ring (3) have been cup jointed on cable (2), install bin (1) is run through in cable (2), second fixed block (9) distribute in the both sides of solid fixed ring (3), gu fixed ring (3) and second fixed block (9) fixed connection.

5. The coal mining machine cable traction tension overload protection device according to claim 2, characterized in that: the quantity of mounting box (12) is provided with two sets ofly, mounting box (12) are the symmetric distribution, be equipped with iron pole (17) in mounting box (12), coil (18) have been cup jointed on iron pole (17), it is equipped with third spring (16) to inhale between piece (15) and mounting box (12), third spring (16) run through collar (11) and inhale piece (15) and mounting box (12) fixed connection with magnetism respectively.

6. The coal mining machine cable traction tension overload protection device according to claim 2, characterized in that: the quantity of power supply unit (13) is provided with two sets ofly, power supply unit (13) are the symmetric distribution, power supply unit (13) correspond the setting with mounting box (12) respectively, power supply unit (13) are connected with coil (18), install bin (1) top is equipped with controlling means (14), controlling means (14) are connected with power supply unit (13).