CN218145407U

CN218145407U - Mechanical claw for crane

Info

Publication number: CN218145407U
Application number: CN202221672298.7U
Authority: CN
Inventors: 孔祥霞
Original assignee: Shanghai Taixu Shanghai Hardware Electromechanical Equipment Co ltd
Current assignee: Shanghai Taixu Shanghai Hardware Electromechanical Equipment Co ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2022-12-27
Anticipated expiration: 2032-06-30

Abstract

The utility model provides a gripper for crane relates to gripper technical field for crane. This gripper for hoist includes connecting plate, installation shell, stop gear, protective housing, connecting plate and installation shell pass through stop gear fixed connection, the bottom inner wall fixedly connected with motor of installation shell, the output shaft lower extreme fixedly connected with bull stick of motor, the left and right sides of protective housing and front and the back all articulate through the round pin axle have last connecting claw, the outer wall fixedly connected with silk piece of bull stick, all articulate through the round pin axle all around the silk piece has the connecting rod, four the lower extreme of going up connecting claw all articulates through the round pin axle has lower connecting claw. This gripper for hoist is through setting up stop gear, can be quick dismantle and install the gripper, has solved the problem that current gripper is not convenient for dismantle and install, is convenient for maintain and change the gripper.

Description

Mechanical claw for crane

Technical Field

The utility model relates to a gripper technical field for the hoist specifically is a gripper for hoist.

Background

The crane refers to a multi-action hoisting machine for vertically lifting and horizontally carrying heavy objects in a certain range. Also known as crown blocks, navigation cranes and cranes. The hoisting equipment has the working characteristics of intermittent movement, namely corresponding mechanisms for taking materials, transporting, unloading and the like in one working cycle alternately work, so that the development and the use of the crane on the market are more and more extensive.

The current gripper still uses two melon hooks mostly, leads to when snatching the heavy object, is not convenient for grasp, can appear the condition that drops sometimes even, and the flexibility of gripper is poor, is not convenient for snatch, and the gripper exposes for a long time outdoors in addition, rusts easily and corrodes, in order to guarantee the safe handling of gripper, needs regularly to pull down and maintains, but traditional gripper is not convenient for dismantle, has reduced work efficiency.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a gripper for crane has solved the problem among the background art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a mechanical claw for a crane comprises a connecting plate, an installation shell and a limiting mechanism, wherein the connecting plate and the installation shell are fixedly connected through the limiting mechanism, the lower surface of the installation shell is fixedly connected with a protective shell, the inner wall of the bottom of the installation shell is fixedly connected with a motor, the lower end of an output shaft of the motor penetrates through the lower surface of the installation shell, the lower end of the output shaft of the motor is fixedly connected with a rotating rod, the lower end of the rotating rod is rotatably connected to the lower surface of the protective shell through a bearing, the left side, the right side, the front side and the back side of the protective shell are respectively hinged with upper connecting claws through pin shafts, the outer wall of the rotating rod is fixedly connected with a wire block, the periphery of the wire block is hinged with connecting rods through pin shafts, one ends of the connecting rods, which are far away from each other, are respectively hinged with four upper connecting claws through pin shafts, and the lower ends of the four upper connecting claws are hinged with lower connecting claws through pin shafts;

stop gear includes L type chucking piece, slotted hole, mounting groove, movable rod, baffle, spring, fixture block, pull ring, the equal fixedly connected with L type chucking piece in the lower surface left and right sides of connecting plate, slotted hole and mounting groove and slotted hole are located the inboard of mounting groove have been seted up at the top of installation shell, the left end that is provided with movable rod and movable rod in the mounting groove runs through the left side of mounting groove, the right-hand member fixedly connected with baffle of movable rod, the spring has been cup jointed to the outer wall of movable rod, the right side fixedly connected with fixture block of baffle, the left end fixedly connected with pull ring of movable rod.

Preferably, the outer wall of the rotating rod is provided with threads matched with the screw block, and the rotating rod is in threaded connection with the screw block.

Preferably, the protective housing is rectangular and has sliding grooves formed in the periphery.

Preferably, the lower end of the upper connecting claw is fixedly connected with a first fixing block, the upper end of the lower connecting claw is fixedly connected with a second fixing block, the lower surface of the first fixing block is hinged with a hydraulic telescopic rod through a pin shaft, and the lower end of the hydraulic telescopic rod is hinged with the second fixing block through a pin shaft.

Preferably, the anti-skid pad is fixedly connected to one side, close to each other, of each of the four upper connecting claws.

Preferably, the four lower connecting claws are provided with clamping teeth on the sides close to each other.

(III) advantageous effects

The utility model provides a gripper for crane. The method has the following beneficial effects:

1. this gripper for hoist, through the motor, the bull stick, the silk piece, the connecting rod, go up and connect the claw, hydraulic telescoping rod, the cooperation of connecting the claw is used down, the starter motor drives the bull stick and rotates and make the silk piece remove, the silk piece removes to drive the connecting rod and removes to drive and to connect the claw and open or closed, thereby realize snatching the object, use through four last connection claws, can follow each direction and fix the object firmly, and connect the claw and open or closed under the telescopic control of hydraulic telescoping rod, make four connection claws catch on the lower extreme of object, prevent that the object from breaking away from, improve the stability of device, avoid appearing the incident.

2. This gripper for crane, through setting up stop gear, when needs dismantle the gripper, staff's pulling pull ring drives the movable rod and makes the fixture block break away from L type chucking piece toward the outside removal, thereby unload the gripper, stimulate the pull ring earlier during the installation and make the fixture block remove toward the mounting groove, the slotted hole joint on the installation shell is in the L type chucking piece outside of connecting plate lower surface again, then the pull ring is loosened, the spring produces elasticity and promotes the baffle and make fixture block and L type chucking piece chucking toward inboard removal this moment, thereby fix the gripper, can be quick dismantle and install the gripper, the problem that current gripper is not convenient for dismantle and install has been solved, be convenient for maintain and change the gripper, and the work efficiency is improved.

Drawings

Fig. 1 is a schematic structural view of a mechanical gripper for a crane according to the present invention;

fig. 2 is an enlarged schematic view of a portion a shown in fig. 1 of a gripper for a crane according to the present invention.

Wherein, 1, connecting plate; 2. mounting a shell; 3. a limiting mechanism; 301. an L-shaped clamping block; 302. a slot; 303. mounting grooves; 304. a movable rod; 305. a baffle plate; 306. a spring; 307. a clamping block; 308. a pull ring; 4. a protective shell; 5. a motor; 6. a rotating rod; 7. a connecting claw; 8. silk block; 9. a connecting rod; 10. a connecting claw; 111. a first fixed block; 112. a second fixed block; 113. a hydraulic telescopic rod.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

The embodiment of the utility model provides a mechanical claw for a crane, as shown in figure 1-2, comprising a connecting plate 1, a mounting shell 2 and a limiting mechanism 3, wherein the connecting plate 1 and the mounting shell 2 are fixedly connected through the limiting mechanism 3, the lower surface of the mounting shell 2 is fixedly connected with a protective shell 4, the protective shell 4 is rectangular, and is provided with a chute all around, the chute is arranged to facilitate the movement of four connecting rods 9 along the chute, the inner wall of the bottom of the mounting shell 2 is fixedly connected with a motor 5, the lower end of the output shaft of the motor 5 penetrates through the lower surface of the mounting shell 2, the lower end of the output shaft of the motor 5 is fixedly connected with a rotating rod 6, the lower end of the rotating rod 6 is rotatably connected with the lower surface of the protective shell 4 through a bearing, the left side, the right side, the front side and the back side of the protective shell 4 are both hinged with upper connecting claws 7 through pin shafts, one side of the four upper connecting claws 7 close to each other is fixedly connected with an anti-skid pad, the outer wall of the rotating rod 6 is fixedly connected with a wire block 8, the outer wall of bull stick 6 is provided with the screw thread with 8 looks adaptations of silk piece, and bull stick 6 and 8 threaded connection of silk piece, with bull stick 6 and 8 threaded connection of silk piece, the direction that 8 removal of silk piece can be controlled through the rotatory direction of bull stick 6, the one end that all articulated all around of silk piece 8 have connecting rod 9 and connecting rod 9 to keep away from each other through the round pin axle articulates through the round pin axle with four last claws 7 respectively through the round pin axle, the lower extreme of four last claws 7 all articulates through the round pin axle has lower connecting claw 10, four one sides that lower connecting claw 10 is close to each other all are provided with the latch, can improve the degree of gripping of lower connecting claw 10 through setting up the latch, prevent that article from dropping, the lower extreme fixedly connected with first fixed block 111 of last connecting claw 7, the upper end fixedly connected with second fixed block 112 of lower connecting claw 10, the lower surface of first fixed block 111 has hydraulic telescoping rod 113 and the lower extreme of hydraulic telescoping rod 113 through the round pin axle articulated and second fixed block through round pin axle and second fixed block 112 are articulated, starter motor 5 drives bull stick 6 and rotates and make silk piece 8 remove, silk piece 8 removes to drive connecting rod 9 and removes to drive and go up connecting claw 7 and open or be closed, thereby realize snatching the object, through four use of going up connecting claw 7, can follow each direction and firmly fix the object, and through connecting claw 10 under the 113 flexible controls of hydraulic telescoping rod open or be closed, make four connecting claws 10 catch on the lower extreme of object, prevent that the object from breaking away from, improve device's stability, avoid appearing the incident.

Limiting mechanism 3 includes L type chucking piece 301, slotted hole 302, mounting groove 303, movable rod 304, baffle 305, spring 306, fixture block 307, pull ring 308, the equal fixedly connected with L type chucking piece 301 in the lower surface left and right sides of connecting plate 1, slotted hole 302 and mounting groove 303 and slotted hole 302 are located the inboard of mounting groove 303 are seted up to the top of installation shell 2, be provided with movable rod 304 in the mounting groove 303 and the left end of movable rod 304 runs through the left side of mounting groove 303, the right-hand member fixedly connected with baffle 305 of movable rod 304, the outer wall of movable rod 304 has cup jointed spring 306, the right side fixedly connected with fixture block 307 of baffle 305, the left end fixedly connected with pull ring 308 of movable rod 304, when needing to dismantle the gripper, staff stimulate pull ring 308 and drive movable rod 304 and move towards the outside and make fixture block 307 break away from L type chucking piece 301, thereby unload the gripper, stimulate pull ring 308 earlier during the installation to make fixture block 307 move towards mounting groove 303, the L type chucking piece 301 outside of mounting shell 2 lower surface joint in the L type chucking piece 301 of maintenance, then loosen pull ring 308, spring 305 produced elasticity and promote baffle 305 and the quick mechanical gripper replacement to the maintenance, thereby the problem of the quick mounting efficiency is solved the clamping claw and the quick mounting of the clamping of installation of the clamping of being convenient for the clamping of installation.

Further, the outer wall of the rotating rod 6 is provided with a thread matched with the thread block 8, and the rotating rod 6 is in threaded connection with the thread block 8, as shown in fig. 1, the rotating rod 6 is in threaded connection with the thread block 8, and the moving direction of the thread block 8 can be controlled by the rotating direction of the rotating rod 6.

Further, the rectangle of protective housing 4, and all seted up the spout all around, as shown in fig. 1, set up the spout and be convenient for four connecting rods 9 to remove along the spout.

Further, go up the first fixed block 111 of lower extreme fixedly connected with of connection claw 7, the upper end fixedly connected with second fixed block 112 of lower connection claw 10, the lower surface of first fixed block 111 articulates through the round pin axle has hydraulic telescoping rod 113 and hydraulic telescoping rod 113's lower extreme is articulated through round pin axle and second fixed block 112, as shown in fig. 1, it opens or is closed to connect claw 10 through hydraulic telescoping rod 113 flexible control down, make four connection claws 10 catch on the lower extreme of object, prevent that the object from breaking away from, improve the stability of device, avoid appearing the incident.

Further, four lower connecting claw 10 all are provided with the latch on the one side that is close to each other, as shown in fig. 1, can improve the degree of grasping of connecting claw 10 down through setting up the latch, prevent that article from dropping.

The working principle is as follows: firstly, the gripper is fixed on a crane through a buckle on a connecting plate 1, when the gripper is used, a starting motor 5 drives a rotating rod 6 to rotate so as to enable a wire block 8 to move, the wire block 8 moves to drive a connecting rod 9 to move so as to drive an upper connecting claw 7 to open or close, so that the object can be grabbed, the object can be firmly fixed from all directions through the use of four upper connecting claws 7, and the four connecting claws 10 are controlled to open or close through the expansion and contraction of a hydraulic telescopic rod 113 so as to hook the lower end of the object, so that the object is prevented from being separated, the stability of the device is improved, and safety accidents are avoided; when the mechanical claw needs to be disassembled, a worker pulls the pull ring 308 to drive the movable rod 304 to move outwards to enable the fixture block 307 to be separated from the L-shaped clamping block 301, so that the mechanical claw is disassembled, the pull ring 308 is firstly pulled during installation to enable the fixture block 307 to move inwards in the installation groove 303, then the slotted hole 302 in the installation shell 2 is clamped outside the L-shaped clamping block 301 on the lower surface of the connection plate 1, the pull ring 308 is loosened, the spring 306 generates elasticity to push the baffle 305 to move inwards to enable the fixture block 307 and the L-shaped clamping block 301 to be clamped, so that the mechanical claw is fixed, the mechanical claw can be rapidly disassembled and assembled, the problem that the existing mechanical claw is not convenient to disassemble and assemble is solved, the mechanical claw is convenient to maintain and replace, and the working efficiency is improved.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a gripper for hoist, includes connecting plate (1), installation shell (2), stop gear (3), its characterized in that: the connecting plate (1) is fixedly connected with the mounting shell (2) through a limiting mechanism (3), the lower surface of the mounting shell (2) is fixedly connected with a protective shell (4), the inner wall of the bottom of the mounting shell (2) is fixedly connected with a motor (5), the lower end of an output shaft of the motor (5) penetrates through the lower surface of the mounting shell (2), the lower end of the output shaft of the motor (5) is fixedly connected with a rotating rod (6), the lower end of the rotating rod (6) is rotatably connected with the lower surface of the protective shell (4) through a bearing, the left side, the right side, the front side and the back side of the protective shell (4) are respectively hinged with upper connecting claws (7) through pin shafts, the outer wall of the rotating rod (6) is fixedly connected with a wire block (8), the periphery of the wire block (8) is hinged with connecting rods (9) through pin shafts, one ends, far away from each other ends of the connecting rods (9), are respectively hinged with four upper connecting claws (7) through pin shafts, and the lower ends of the four upper connecting claws (7) are respectively hinged with lower connecting claws (10) through pin shafts;

stop gear (3) are including L type chucking piece (301), slotted hole (302), mounting groove (303), movable rod (304), baffle (305), spring (306), fixture block (307), pull ring (308), the equal fixedly connected with L type chucking piece (301) of the lower surface left and right sides of connecting plate (1), slotted hole (302) and mounting groove (303) and slotted hole (302) are seted up at the top of installation shell (2) and are located the inboard of mounting groove (303), the left end that is provided with movable rod (304) and movable rod (304) in mounting groove (303) runs through the left side of mounting groove (303), the right-hand member fixedly connected with baffle (305) of movable rod (304), spring (306) has been cup jointed to the outer wall of movable rod (304), right side fixedly connected with fixture block (307) of baffle (305), the left end fixedly connected with pull ring (308) of movable rod (304).

2. The mechanical gripper for cranes according to claim 1, characterized in that: the outer wall of the rotating rod (6) is provided with threads matched with the thread block (8), and the rotating rod (6) is in threaded connection with the thread block (8).

3. The gripper for cranes according to claim 1, characterized in that: the rectangle of protective housing (4), and all seted up the spout all around.

4. The mechanical gripper for cranes according to claim 1, characterized in that: go up the first fixed block (111) of lower extreme fixedly connected with of connecting claw (7), the upper end fixedly connected with second fixed block (112) of connecting claw (10) down, the lower surface of first fixed block (111) articulates through the round pin axle has hydraulic telescoping rod (113) and hydraulic telescoping rod (113)'s lower extreme to articulate through round pin axle and second fixed block (112).

5. The gripper for cranes according to claim 1, characterized in that: one side of each of the four upper connecting claws (7) which are close to each other is fixedly connected with an anti-skid pad.

6. The gripper for cranes according to claim 1, characterized in that: one sides of the four lower connecting claws (10) close to each other are provided with clamping teeth.