CN217296999U

CN217296999U - Trolley limiting device of crane

Info

Publication number: CN217296999U
Application number: CN202123086176.8U
Authority: CN
Inventors: 刘峰
Original assignee: Zibo Special Equipment Inspection And Research Institute
Current assignee: Zibo Special Equipment Inspection And Research Institute
Priority date: 2021-12-10
Filing date: 2021-12-10
Publication date: 2022-08-26
Anticipated expiration: 2031-12-10

Abstract

The utility model discloses a dolly stop device of hoist, including T type seat, the mounting panel, a piston section of thick bamboo, the piston rod, the brake block, rubber buffer block, the first end at T type seat is installed with the bolt on the upper portion of mounting panel, the lower part of mounting panel is equipped with the piston hole, piston cylinder cover is in the piston hole, piston rod cover is in a piston section of thick bamboo, the head end rigid coupling of a piston section of thick bamboo has the buffer block mount pad, rubber buffer block's afterbody is installed in the buffer block mount pad, accompany first compression spring between buffer block mount pad and the mounting panel, accompany second compression spring between buffer block mount pad and the piston rod, the tail end rigid coupling of piston rod has the brake block mount pad, the afterbody of brake block is installed in the brake block mount pad. When the trolley of the utility model is close to the end of the guide rail, the rubber buffer block is contacted with the frame or the beam of the crane, thereby playing a role of buffering; when the rubber buffer block is pushed towards the mounting plate, the brake block can be contacted with the wheels of the trolley, and the wheels of the trolley are braked.

Description

Trolley limiting device of crane

Technical Field

The utility model relates to a spacing technical field of dolly especially relates to a dolly stop device of hoist.

Background

The dolly of hoist slides the important component part of lifting by crane on the guide rail of hoist, through installing proximity switch at the guide rail both ends at present, can let the power stop work of drive dolly work when the dolly is close to proximity switch, but the dolly still can slide forward because of inertia, and the dolly can take place the striking with terminal hoist frame of guide rail or roof beam, can produce the collision noise, and the deformation of taking place the collision can cause the dolly to derail even. Therefore, a buffer mechanism and a brake mechanism for stopping the rotation of wheels of the trolley are needed to protect the trolley.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the above problem that prior art exists, provide a dolly stop device of hoist.

For realizing above-mentioned technical purpose, reach above-mentioned technological effect, the utility model discloses a following technical scheme realizes:

the utility model provides a dolly stop device of hoist, includes T type seat, mounting panel, piston cylinder, piston rod, brake block, rubber buffer block, the first end at T type seat is installed with the bolt on the upper portion of mounting panel, the lower part of mounting panel is equipped with the circular shape piston hole, the piston cylinder cover is in the piston hole, the piston rod cover is in the piston cylinder, the head end rigid coupling of piston cylinder has the buffer block mount pad, the afterbody of rubber buffer block is installed in the buffer block mount pad, accompany first compression spring between buffer block mount pad and the mounting panel, accompany second compression spring between buffer block mount pad and the piston rod, the tail end rigid coupling of piston rod has the brake block mount pad, the afterbody of brake block is installed in the brake block mount pad.

Wherein, the tail part of the piston cylinder is provided with a limit ring.

The side wall of the piston cylinder is provided with guide grooves which are symmetrically distributed relative to the central axis of the piston cylinder, the hole wall of the piston hole is provided with two first guide blocks which are symmetric relative to the central axis of the piston hole, the outer side of the head of the piston rod is provided with two second guide blocks which are symmetric relative to the central axis of the piston rod, the first guide blocks and the second guide blocks are connected with the guide grooves in a sliding fit mode, and the second guide blocks are located between the first guide blocks and the buffer block mounting seat.

Wherein the elastic coefficient of the first compression spring is smaller than that of the second compression spring.

The upper portion of the mounting plate is provided with two U-shaped holes which are symmetrical relative to the long axis of the mounting plate, the supporting plate of the T-shaped seat is provided with two screw holes which are symmetrical relative to the long axis of the supporting plate, and the bolts penetrate through the U-shaped holes and are screwed with the corresponding screw holes.

The head of the rubber buffer block is in a truncated cone shape, and a truncated cone-shaped cavity is arranged in the head of the rubber buffer block.

The beneficial effects of the utility model are that: the mounting plate, the piston cylinder, the first compression spring, the buffer block mounting seat and the rubber buffer block are matched together, and when the trolley is close to the tail end of the guide rail, the rubber buffer block is in contact with a frame or a beam of the crane to play a role in buffering; by means of the cooperation of the piston cylinder, the piston rod, the second compression spring, the buffer block mounting seat and the brake block, when the rubber buffer block is pushed towards the mounting plate, the brake block can be in contact with the wheels of the trolley, the wheels of the trolley are braked, and the wheels of the trolley are made to stop rotating.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

FIG. 1 is a schematic structural view of a middle carriage limiting device of the present invention;

FIG. 2 is a schematic structural view of a T-shaped seat of the present invention;

FIG. 3 is a schematic structural diagram of a mounting plate of the present invention;

FIG. 4 is a schematic structural view of the assembly of the piston cylinder, the piston rod, the rubber buffer block, the brake block, the first compression spring, the second guide block and the limit ring of the present invention;

the reference numbers in the figures illustrate: the brake pad comprises a 1-T-shaped seat, a 2-mounting plate, a 3-piston cylinder, a 4-piston rod, a 5-brake block, a 6-rubber buffer block, a 7-U-shaped hole, an 8-supporting plate, a 9-screw hole, a 10-bolt, a 11-piston hole, a 12-limiting ring, a 13-buffer block mounting seat, a 14-first compression spring, a 15-second compression spring, a 16-brake block mounting seat, a 17-guide groove, a 18-first guide block, a 19-second guide block and a 20-cavity.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1 to 4, the trolley limiting device of the crane comprises a T-shaped seat 1, a mounting plate 2, a piston cylinder 3, a piston rod 4, a brake block 5 and a rubber buffer block 6, wherein two U-shaped holes 7 symmetrical about the long axis of the mounting plate 2 are arranged at the upper part of the mounting plate 2, two screw holes 9 symmetrical about the long axis of the support plate 8 are arranged on the support plate 8 of the T-shaped seat 1, and bolts 10 are threaded through the U-shaped holes 7 and the corresponding screw holes 9, so that the upper part of the mounting plate 2 is mounted at the first end of the T-shaped seat 1.

The lower part of the mounting plate 2 is provided with a circular piston hole 11, the piston cylinder 3 is sleeved in the piston hole 11, the piston cylinder 3 can move in the piston hole 11 along the axial direction of the piston hole 11, and the tail part of the piston cylinder 3 is provided with a limit ring 12 sleeved on the piston cylinder 3 to prevent the tail part of the piston cylinder 3 from slipping from the piston hole 11; the head end of the piston cylinder 3 is fixedly connected with a buffer block mounting seat 13, the tail part of the rubber buffer block 6 is mounted in the buffer block mounting seat 13, a first compression spring 14 is clamped between the buffer block mounting seat 13 and the mounting plate 2, and the first compression spring 14 is utilized to apply thrust in the direction of the head end of the piston cylinder 3 to the buffer block mounting seat 13; the piston rod 4 is sleeved in the piston cylinder 3, a second compression spring 15 is clamped between the buffer block mounting seat 13 and the piston rod 4, the tail end of the piston rod 4 is fixedly connected with a brake block mounting seat 16, and the tail part of the brake block 5 is mounted in the brake block mounting seat 16; the lateral wall of the piston cylinder 3 is provided with guide grooves 17 which are symmetrically distributed relative to the central axis of the piston cylinder 3, the hole wall of the piston hole 11 is provided with two first guide blocks 18 which are symmetrical relative to the central axis of the piston hole 11, the outer side of the head of the piston rod 4 is provided with two second guide blocks 19 which are symmetrical relative to the central axis of the piston rod 4, the first guide blocks 18 and the second guide blocks 19 are both connected with the guide grooves 17 in a sliding fit mode, and the second guide blocks 19 are located between the first guide blocks 18 and the buffer block mounting seat 13.

Before the brake block 5 contacts with the trolley wheel of the crane, in order to ensure that the piston rod 4 can move along with the piston cylinder 3, the elastic coefficient of the first compression spring 14 needs to be smaller than that of the second compression spring 15.

As shown in fig. 4, the head of the rubber buffer block 6 is in a truncated cone shape, and a truncated cone-shaped cavity 20 is arranged in the head of the rubber buffer block 6, so that a deformation cavity is provided for the rubber buffer block 6 when being impacted, the elastic deformation of the rubber buffer block 6 is improved, and the impact force generated when the rubber buffer block 6 is impacted by a crane is reduced.

The trolley limiting device of the crane of the utility model utilizes the common cooperation of the mounting plate, the piston cylinder, the first compression spring, the buffer block mounting seat and the rubber buffer block, when the trolley is close to the tail end of the guide rail, the rubber buffer block is contacted with the frame or the beam of the crane, thereby playing a role of buffering; by means of the cooperation of the piston cylinder, the piston rod, the second compression spring, the buffer block mounting seat and the brake block, when the rubber buffer block is pushed towards the mounting plate, the brake block can be in contact with the wheels of the trolley, the wheels of the trolley are braked, and the wheels of the trolley are made to stop rotating.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.

Claims

1. A dolly stop device of hoist which characterized in that: including T type seat, mounting panel, piston cylinder, piston rod, brake block, rubber buffer block, the first end at T type seat is installed with the bolt on the upper portion of mounting panel, the lower part of mounting panel is equipped with the circular shape piston hole, the piston cylinder cover is in the piston hole, the piston rod cover is in the piston cylinder, the head end rigid coupling of piston cylinder has the buffer block mount pad, the afterbody of rubber buffer block is installed in the buffer block mount pad, accompany first compression spring between buffer block mount pad and the mounting panel, accompany second compression spring between buffer block mount pad and the piston rod, the tail end rigid coupling of piston rod has the brake block mount pad, the afterbody of brake block is installed in the brake block mount pad.

2. The trolley spacing device of crane as claimed in claim 1, wherein: and the tail part of the piston cylinder is provided with a limiting ring.

3. A trolley spacing device for cranes, according to claim 1 or 2, characterized in that: the piston is characterized in that guide grooves which are symmetrically distributed relative to the central axis of the piston cylinder are formed in the side wall of the piston cylinder, two first guide blocks which are symmetric relative to the central axis of the piston hole are installed on the hole wall of the piston hole, two second guide blocks which are symmetric relative to the central axis of the piston rod are installed on the outer side of the head of the piston rod, the first guide blocks and the second guide blocks are connected with the guide grooves in a sliding fit mode, and the second guide blocks are located between the first guide blocks and the buffer block mounting seat.

4. The trolley spacing device of crane as claimed in claim 1, wherein: the elastic coefficient of the first compression spring is smaller than that of the second compression spring.

5. The trolley spacing device of crane as claimed in claim 1, wherein: the upper portion of the mounting plate is provided with two U-shaped holes which are symmetrical relative to the long axis of the mounting plate, the supporting plate of the T-shaped seat is provided with two screw holes which are symmetrical relative to the long axis of the supporting plate, and the bolts penetrate through the U-shaped holes and are screwed with the corresponding screw holes.

6. The trolley spacing device of crane as claimed in claim 1, wherein: the head of the rubber buffer block is in a cone frustum shape, and a cone frustum-shaped cavity is arranged in the head of the rubber buffer block.