CN211226019U

CN211226019U - Heavy-load electromagnetic detacher

Info

Publication number: CN211226019U
Application number: CN201922184397.5U
Authority: CN
Inventors: 于装; 张卫龙
Original assignee: Beijing Mingtian Hydraulic Technology Co ltd
Current assignee: Beijing Mingtian Hydraulic Technology Co ltd
Priority date: 2019-12-09
Filing date: 2019-12-09
Publication date: 2020-08-11
Anticipated expiration: 2029-12-09

Abstract

The utility model relates to a detacher technical field discloses a heavy load electromagnetism detacher, including hanging the seat, a housing, the electromagnetism pull rod, the movable block and hanging the piece, the upper end clamp in the casing is equipped with hangs the seat, hangs seat and casing bolted connection, is equipped with the electromagnetism pull rod in the casing, electromagnetism pull rod lower extreme is equipped with the pull rod, the pull rod is connected with the movable block through first round pin axle, the lower extreme in the casing is equipped with two symmetry hanging pieces, hanging piece passes through second round pin axle and casing fixed connection, and the hanging piece all is equipped with antifriction bearing, and antifriction bearing's inner circle links to each other with hanging the piece through third round pin axle, antifriction bearing's outer lane and movable block contact. The utility model discloses a antifriction bearing and movable block contact have reduced the required lifting force of movable block when the heavy load, have guaranteed that the detacher reliably locks and opens rapidly, and a plurality of detachers of being convenient for operate in step, utilize the handle can the manual operation unhook when electrical apparatus trouble to correspond the identification position according to the handle and judge the detacher state, improved the reliability and the security of lifting by crane.

Description

Heavy-load electromagnetic detacher

Technical Field

The utility model relates to a detacher technical field especially relates to a heavy load electromagnetism detacher.

Background

The drop hammer impact test system is equipment commonly used for factory test of a heavy buffer, lifting and drop impact of different loads are carried out according to different tested energy, the load weight can reach 5 tons, the lifting height can reach 4m, and frequent impact operation is required according to test requirements. The release of unhooking of common unhooking ware generally needs external force trigger mechanism in the existing market, like patent document CN203116934U discloses "a unhooking ware", including the coupler body, there is the U-shaped couple in the lower part hub connection of coupler body, the arm of keeping away from the coupler body of U-shaped couple is longer than the arm that is close to the coupler body, the middle part hub mounting of connecting rod is at the coupler body, the one end of connecting rod is equipped with the locking groove, the other end is connected with the stay cord, the one end of extension spring is fixed at the coupler body, the one end that the other end was equipped with the stay cord is fixed at the connecting rod, the arm of keeping away from the coupler. The utility model discloses a it needs manual external force release of exerting, and the operation is inconvenient, can't realize the synchro operation to needing two or more than two unhooking devices release the occasion simultaneously moreover.

The conventional electromagnetic detacher is an "automatic detacher" disclosed in patent document CN2228898Y, and the utility model has the problems that the electromagnetic driving force is insufficient, and the electromagnetic detacher cannot be reliably detached under heavy load, and has potential safety hazard. And other adopt detacher structures of motor drive, for example patent document CN204727443U discloses "a detacher", this utility model comprises a pair of symmetrical four-bar linkage, four-bar linkage includes big connecting rod (1), little connecting rod (4), shell (21) and drive pin (3), drive pin (3) of connecting two little connecting rods (4) pass quiet groove (20) and the movable slot (6) on shell (21), big connecting rod (1) links to each other with shell (21) through round pin axle (2), big connecting rod (1) still links to each other with little connecting rod (4) through round pin (5), the action is accomplished by movable slot (6) that can slide on shell (21), movable slot (6) act on drive pin (3). The utility model discloses a although solved the defect that the electromagnetic force is little, its own has the structure complicacy, and the long and higher scheduling problem of cost of action time is not suitable for the operation that the buffer test needs frequent quick unhook locking.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a heavy load electromagnetism detacher to the stay cord detacher of solving among the prior art needs manual external force release of applying, and the operation is inconvenient, and to needing two or more than two detachers to release the problem that the occasion can't realize synchronous operation simultaneously and current electromagnetism detacher structure complicated moreover, be not suitable for the problem of the operation that the buffer test needs frequent quick unhook locking.

In order to realize the purpose, the utility model discloses a technical scheme as follows:

the utility model provides a heavy load electromagnetism detacher, including hanging the seat, a housing, the electromagnetism pull rod, movable block and hanging the piece, the upper end clamp in the casing is equipped with hangs the seat, hang seat and casing bolted connection, be equipped with the electromagnetism pull rod in the casing, electromagnetism pull rod and casing fixed connection, the lower extreme of electromagnetism pull rod is equipped with the pull rod, the pull rod is connected with the movable block through first round pin axle, the lower extreme in the casing is equipped with two symmetry hanging pieces, hang the piece and pass through second round pin axle and casing fixed connection, it can rotate around second round pin axle to hang the piece, hang piece upper portion and all be equipped with antifriction bearing, antifriction bearing's inner circle passes through the third round pin axle and links to each other with hanging the piece, antifriction bearing.

Adopt antifriction bearing and movable block contact, greatly reduced the required lifting force of movable block when the heavy load, adopt the electromagnetism pull rod as drive arrangement, guaranteed that the detacher reliably locks and opens rapidly, also be convenient for a plurality of detachers to operate in step.

Furthermore, a handle is fixed at the upper end of the electromagnetic pull rod through a locking nut, a through groove corresponding to the handle is formed in the side, the front or the back of the shell, and the through groove is used for enabling the handle to extend out.

The upper end of the electromagnetic pull rod is fixed with a handle through a locking nut, a through groove is formed in the shell to enable the handle to extend out, and the pull rod at the lower end of the electromagnetic pull rod is connected with the movable block through a first pin shaft and drives the movable block to move up and down when power is on or off. The handle connected with the upper end of the electromagnetic pull rod can be used for manually operating unhooking when an electric appliance is in failure, the state of the unhooking device is judged according to the position of the handle corresponding to the mark, and when the handle is positioned at the upper end in the through groove, the lifting block structure is opened, and a heavy object is unhooked; when the handle is positioned at the lower end in the through groove, the hanging block structure is indicated to lock the heavy object. The reliability and the safety of lifting are improved by additionally arranging the handle function.

Furthermore, a positioning plate is arranged in the shell and fixedly connected with the shell, a tension spring is arranged on the positioning plate, one end of the tension spring is connected with the positioning plate, and the other end of the tension spring is connected with the hanging block.

When the unhooking device works to lock and lift, the two symmetrical lifting blocks simultaneously bear the rotating torque formed by downward pulling force and horizontal component force under the action of a weight, and the rotating torque is transmitted to the two sides of the movable block through the rolling bearing to form moment balance. Meanwhile, the positioning plate limits the swing of the movable block caused by unbalanced stress due to the shaking of the heavy object in the hoisting process, so that the movable block is reliably locked in the hoisting process. When unblanking and unhooking, the electromagnetic pull rod is electrified, the movable block moves up under the action of the electromagnetic pull rod, and due to the existence of the rolling bearing, sliding friction between the hanging block and the movable block is changed into rolling friction, so that damage to the hanging block is reduced, the movable block can be lifted under the action of smaller electromagnetic force, and meanwhile, the lower end of the hanging block is rotationally opened under the action of weight moment, so that the action of releasing the lifting hook can be effectively completed. The positioning plate and the hanging block are directly provided with the tension springs, so that the hanging block can be conveniently opened quickly to be in an open state after unhooking is completed, and the next time the hanging hook is quickly installed for hoisting operation.

Furthermore, the front section of the movable block is of a wedge-shaped structure, the middle section of the movable block is a symmetrical plane in smooth transition with a wedge-shaped surface of the wedge-shaped structure, and a lightening hole is formed in the middle of the movable block.

The rear section of the movable block is connected with the pull rod, the front section of the movable block is of a wedge-shaped structure, the middle section of the movable block is a parallel surface, the parallel surface and the wedge-shaped surface are in smooth transition, and a lightening hole is machined in the middle of the movable block. When the electromagnetic pull rod acts, the outer rings of the rolling bearings arranged on the upper parts of the two symmetrical hanging blocks roll along the side surfaces of the movable blocks respectively, and the side surfaces comprise wedge-shaped surfaces of a wedge-shaped structure and parallel surfaces of a middle section.

Furthermore, a supporting block is arranged in the shell and connected with the shell through bolts.

The effect of supporting shoe makes whole unhook ware structure more firm, prevents that casing separation or hanging piece from falling, has increased the security and the steadiness of structure.

The utility model has the advantages that: the rolling bearing is in contact with the movable block, so that the lifting force required by the movable block for unlocking during heavy load is greatly reduced, an electromagnetic pull rod is adopted as a driving device, the reliable locking and rapid opening of the detacher are ensured, and a plurality of detachers can be operated synchronously. Meanwhile, the handle connected with the upper end of the electromagnetic pull rod can be used for manually operating unhooking when an electric appliance is in failure, and the state of the unhooking device is judged according to the position of the handle corresponding to the mark, so that the reliability and the safety of lifting are improved.

Drawings

Fig. 1 is a schematic structural view of a heavy-duty electromagnetic detacher according to a first embodiment of the present invention.

Fig. 2 is a side view of a heavy-duty electromagnetic detacher according to a first embodiment of the present invention.

Fig. 3 is a schematic structural diagram of locking and unhooking of the first embodiment of the present invention.

1. A hanging seat; 2. a front substrate; 3. locking the nut; 4. a handle; 5. an electromagnetic base; 6. a rear substrate; 7. a support block; 8. a pull rod; 9. a first pin shaft; 10. a movable block; 11. a third pin shaft; 12. positioning a plate; 13. a hanging block; a second pin; 15. a tension spring; 16. a through groove; 17. a first screw hole; 18. a rolling bearing; 19. a hook; 20. the structural state of the heavy-duty electromagnetic detacher during locking; 21. the structural state of the heavy-duty electromagnetic detacher during unhooking.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the invention, are given by way of illustration only.

In the first embodiment, as shown in fig. 1 and 2, the heavy-duty electromagnetic detacher includes a lifting seat 1, a housing, an electromagnetic pull rod, a movable block 10, and a lifting block 13, where the housing includes a front substrate 2 and a rear substrate 6, the upper end in the housing is provided with four first screw holes 17, the upper end in the housing is provided with the lifting seat 1 through the four first screw holes 17, the lifting seat 1 is provided with a lifting rope mounting hole, and the lifting rope mounting hole is used for connecting with a main hook of a crane. The hanging seat 1 is connected with a shell through a bolt, an electromagnetic pull rod is arranged in the shell and comprises an electromagnetic seat 5 and a pull rod 8, a handle 4 is fixed at the upper end of the electromagnetic seat 5 through a locking nut 3, a through groove 16 corresponding to the handle 4 in position is formed in a front base plate 2 of the shell, and the through groove 16 is used for enabling the handle 4 to extend out.

The upper end of the electromagnetic pull rod is fixed with a handle 4 through a locking nut, a through groove 16 is formed in the shell to enable the handle 4 to extend out, and a pull rod 8 at the lower end of the electromagnetic pull rod is connected with the movable block through a first pin shaft and drives the movable block to move up and down when power is on or off. The handle 4 connected with the upper end of the electromagnetic pull rod can be used for manually operating unhooking when an electric appliance is in failure, the state of the unhooking device is judged according to the position of the handle 4 corresponding to the mark, and when the handle 4 is positioned at the upper end in the through groove, the hanging block structure is opened, and a heavy object is unhooked; when the handle 4 is positioned at the lower end in the through groove, the hanging block structure is indicated to lock the heavy object. The reliability and the safety of lifting are improved by additionally arranging the handle function.

The electromagnetic pull rod is fixedly connected with the shell, the pull rod 8 is connected with the movable block 10 through the first pin shaft 9, the front section of the movable block 10 is of a wedge-shaped structure, the middle section of the movable block 10 is a symmetrical plane in smooth transition of a wedge-shaped surface of the wedge-shaped structure, the parallel surface and the wedge-shaped surface are in smooth transition, and a lightening hole is formed in the middle of the movable block 10.

Two symmetrical hanging blocks 13 are arranged at the lower end in the shell and comprise a left hanging block and a right hanging block, when the unhooking device locks a heavy object, the left hanging block and the right hanging block are vertically downward and combined into a U-shaped shape, a right convex structure is arranged in the middle of the left hanging block, a left convex structure is arranged in the middle of the right hanging block, the left hanging block and the right hanging block are fixedly connected with the shell at the positions of the convex structures through second pin shafts 14, the hanging blocks can rotate around the second pin shafts 14, rolling bearings 18 are arranged on the upper portions of the hanging blocks 13, inner rings of the rolling bearings 18 are connected with the hanging blocks 13 through third pin shafts 11, and outer rings of the rolling bearings 18 are in contact with the movable blocks 10. Two positioning plates 12 corresponding to the rolling bearings 18 are arranged in the shell, the positioning plates 12 are fixedly connected with the shell, the positioning plates 12 are provided with tension springs 15, one ends of the tension springs 15 are connected with the positioning plates 12, and the other ends of the tension springs 15 are connected with the hanging blocks 13.

As shown in fig. 3, when the electromagnetic pull rod operates, the outer rings of the rolling bearings 18 mounted on the upper portions of the two symmetrical hanging blocks 13 respectively roll along the side surfaces of the movable block 10, and the side surfaces include the wedge-shaped surface of the wedge-shaped structure of the movable block 10 and the parallel surface of the middle section of the movable block 10. When the detacher works to lock and lift (namely, in a structural state 20 when the heavy-load electromagnetic detacher is locked), the two symmetrical hanging blocks 13 are simultaneously subjected to a rotating torque formed by a downward pulling force and a horizontal component force under the action of a weight hooked by the hanging hook 19, and the rotating torque is transmitted to two sides of the movable block 10 through the rolling bearing 18 to form moment balance. Meanwhile, the positioning plate 12 limits the swing of the movable block 10 caused by unbalanced stress due to the shaking of the heavy object in the hoisting process, so that the movable block is reliably locked in the hoisting process. When unblanking and unhooking (namely in the structural state 21 when heavily loaded electromagnetism detacher unhooking), the electromagnetism pull rod gets electric, and the movable block 10 shifts up under the effect of electromagnetism pull rod, because antifriction bearing 18's existence for sliding friction between hanging the piece and the movable block becomes rolling friction, has not only reduced the harm to hanging the piece, and make the movable block 10 promote under less electromagnetic force effect moreover, the lower extreme of hanging piece 13 is rotatory under the effect of heavy object moment simultaneously and is opened, can accomplish the release lifting hook action effectively. A tension spring 15 is arranged between the positioning plate 12 and the hanging block 13, so that the hanging block 13 can be conveniently opened quickly to be in an open state after unhooking is completed, and the next time the hanging hook is quickly installed for hoisting operation.

Two supporting blocks 7 are arranged in the shell, and the supporting blocks 7 are connected with the shell through bolts. The supporting block 7 is used for enabling the whole detacher structure to be more stable and firm, preventing the shell from separating or the hanging block from falling, and improving the safety and the stability of the structure.

Through adopting the utility model discloses an above-mentioned technical scheme has obtained following profitable effect:

the utility model discloses a antifriction bearing and movable block contact, greatly reduced the required lifting force of movable block of unblock when the heavy load to can adopt the electromagnetism pull rod as drive arrangement, guaranteed that the detacher reliably locks and opens rapidly, a plurality of detachers of also being convenient for operate in step. Meanwhile, the handle connected with the upper end of the electromagnetic pull rod can be used for manually operating unhooking when an electric appliance is in failure, and the state of the unhooking device is judged according to the position of the handle corresponding to the mark, so that the reliability and the safety of lifting are improved.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be viewed as the protection scope of the present invention.

Claims

1. The heavy-load electromagnetic detacher is characterized by comprising a hanging seat, a shell, an electromagnetic pull rod, a movable block and a hanging block, wherein the hanging seat is arranged at the upper end in the shell in a clamped mode, the hanging seat is connected with the shell through a bolt, the electromagnetic pull rod is arranged in the shell and fixedly connected with the shell, the pull rod is arranged at the lower end of the electromagnetic pull rod and connected with the movable block through a first pin shaft, the two symmetrical hanging blocks are arranged at the lower end in the shell, the hanging blocks are fixedly connected with the shell through a second pin shaft and can rotate around the second pin shaft, rolling bearings are arranged on the upper portions of the hanging blocks, inner rings of the rolling bearings are connected with the hanging blocks through third pin shafts, and outer rings of the rolling bearings are in contact with the movable block.

2. The heavy-duty electromagnetic detacher of claim 1, wherein a handle is fixed to the upper end of the electromagnetic pull rod through a lock nut, and a through groove corresponding to the handle is formed in the side, front or rear surface of the housing, and the through groove is used for enabling the handle to extend out.

3. The heavy-duty electromagnetic detacher of claim 1 or 2, wherein a positioning plate is arranged in the housing, the positioning plate is fixedly connected with the housing, the positioning plate is provided with a tension spring, one end of the tension spring is connected with the positioning plate, and the other end of the tension spring is connected with the hanging block.

4. The heavy-duty electromagnetic detacher of claim 3, wherein the front section of the movable block is a wedge-shaped structure, the middle section of the movable block is a symmetrical plane smoothly transiting to a wedge-shaped surface of the wedge-shaped structure, and a lightening hole is formed in the middle of the movable block.

5. The heavy-duty electromagnetic detacher of claim 4, wherein said housing has a support block disposed therein, said support block being bolted to said housing.