CN214771781U

CN214771781U - Three-jaw wheel puller

Info

Publication number: CN214771781U
Application number: CN202121015987.6U
Authority: CN
Inventors: 王建平; 孙浩; 董晓明; 李江涛; 李荣富
Original assignee: Beijing Chinacoal Coal Preparation Technology Co ltd
Current assignee: Beijing Chinacoal Coal Preparation Technology Co ltd
Priority date: 2021-05-13
Filing date: 2021-05-13
Publication date: 2021-11-19
Anticipated expiration: 2031-05-13

Abstract

The utility model relates to a three-jaw wheel puller, which comprises a frame, wherein vertical tracks and a lifting oil cylinder are arranged on two sides of the frame, the lifting oil cylinder is arranged on the inner side of the vertical tracks, a traction part is arranged in the vertical tracks, the traction part is fixedly connected with a movable rod of the lifting oil cylinder, the traction parts on two sides are fixedly connected, a fixed horizontal oil cylinder and a jaw disc are arranged on the traction part, a shaft cylinder is arranged at the center of the jaw disc, a plurality of pulling jaws are arranged at the edge of the jaw disc, the movable rod of the horizontal oil cylinder traverses the shaft cylinder, and a telescopic top is arranged at the tail end of the movable rod of the horizontal oil cylinder; a hydraulic station is arranged at the rear part of the frame; the horizontal oil cylinder and the claw disc are adjusted to be suitable for height together through the lifting oil cylinder, accurate positioning is facilitated, the pull claw is fixed on the dismounting part, the pull claw hooks the wheel groove of the dismounting part tightly, then the horizontal oil cylinder drives the telescopic top to eject the dismounting part, so that dismounting work is completed, time and labor are saved, and dismounting efficiency is high.

Description

Three-jaw wheel puller

Technical Field

The utility model relates to a mine overhauls the equipment field, specifically is a three-jaw wheel puller.

Background

When mine equipment is maintained and overhauled, the disassembling work of a motor, a speed reducer, a chain wheel and other wheel tools is often met, the disassembling work is generally realized by mutually matching two workers and adopting a manual knocking method in the past, taking the chain wheel as an example, the disassembling work uses a sledge hammer and a chopping axe to knock the inner side of the wheel, so that the chain wheel is separated from a bearing of a gear box. The large-scale parts are connected with the main shaft for a long time to form bonding, so that the parts are not easy to take down, special measures need to be examined and approved, and the parts are cut by oxygen welding to be disconnected from the bearing.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a three-jaw wheel puller, which can solve the problems in the background art.

The utility model discloses a three-jaw wheel puller, which comprises a frame, wherein, both sides of the frame are provided with a vertical track and a lifting oil cylinder, the lifting oil cylinder is arranged at the inner side of the vertical track, a traction part is arranged in the vertical track, the traction part is fixedly connected with a movable rod of the lifting oil cylinder, the traction parts at both sides are fixedly connected, a fixed horizontal oil cylinder and a jaw disc are arranged on the traction part, the center of the jaw disc is provided with a shaft cylinder, the edge of the jaw disc is provided with a plurality of pulling jaws, the movable rod of the horizontal oil cylinder traverses the shaft cylinder, and the tail end of the movable rod of the horizontal oil cylinder is provided with a telescopic top; the rear part of the rack is provided with a support, a hydraulic station is arranged on the support and is communicated with the upgrading oil cylinder and the horizontal oil cylinder through a hydraulic pipe, and a return valve and an overflow valve are arranged on the hydraulic pipe.

Furthermore, the end face of the claw disc is provided with three pulling claws which are uniformly distributed on the circumference, each pulling claw comprises a claw arm and a claw hook arranged at the tail end of the claw arm, and the outer side wall of the shaft cylinder and the claw disc are connected and reinforced through a plurality of triangular rib plates which are axially arranged.

Furthermore, the claw arm and the claw hook are integrally formed forgings, and a plurality of uniformly distributed tooth-shaped grooves are formed in the inner side face of the claw hook.

Further, the bottom of the frame is provided with universal wheels.

The utility model has the advantages that: the utility model discloses a three-jaw wheel puller together adjusts horizontal cylinder to suitable height together with the claw dish through lift cylinder, makes things convenient for accurate location, then will draw the claw to fix on the dismantlement part, will draw the tight race of dismantlement part of claw hook, then through the flexible top of horizontal cylinder drive, ejecting dismantlement part to accomplish dismantlement work, labour saving and time saving and dismantle efficiently.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that for a person skilled in the art, other relevant drawings can be obtained from the drawings without inventive effort:

fig. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic side view of the present invention;

fig. 3 is a schematic top view of the present invention;

the reference numbers are as follows: 1-claw disc, 2-frame, 3-lifting oil cylinder, 4-telescopic top, 5-triangular rib plate, 6-horizontal oil cylinder, 7-claw arm, 8-claw hook and 9-hydraulic station.

Detailed Description

As shown in fig. 1-3: the three-jaw wheel extractor comprises a rack 2, wherein vertical rails and lifting oil cylinders 3 are arranged on two sides of the rack 2, the lifting oil cylinders 3 are arranged on the inner sides of the vertical rails, traction parts are arranged in the vertical rails and fixedly connected with movable rods of the lifting oil cylinders 3, the traction parts on the two sides are fixedly connected, fixed horizontal oil cylinders 6 and jaw discs 1 are arranged on the traction parts, shaft cylinders are arranged at the centers of the jaw discs 1, a plurality of pulling jaws are arranged on the edges of the jaw discs 1, the movable rods of the horizontal oil cylinders 6 transversely penetrate through the shaft cylinders, and telescopic jacks 4 are arranged at the tail ends of the movable rods of the horizontal oil cylinders 6; the rear part of the frame 2 is provided with a support, the support is provided with a hydraulic station 9, the hydraulic station 9 is communicated with the upgrading oil cylinder and the horizontal oil cylinder 6 through a hydraulic pipe, and the hydraulic pipe is provided with a return valve and an overflow valve.

The utility model discloses a three-jaw wheel puller together adjusts horizontal cylinder 6 to suitable height together with claw dish 1 through lift cylinder 3, makes things convenient for accurate location, then will draw the claw to fix on the dismantlement part, will draw the tight race of dismantling the part of claw hook 8, then through the flexible top 4 of horizontal cylinder 6 drive, ejecting dismantlement part to accomplish dismantlement work, labour saving and time saving and dismantle efficiently.

In this embodiment, the end face of the claw disk 1 is provided with three pulling claws which are uniformly distributed on the circumference, each pulling claw comprises a claw arm 7 and a claw hook 8 arranged at the tail end of the claw arm 7, and the outer side wall of the shaft cylinder and the claw disk 1 are connected and reinforced through a plurality of axially arranged triangular rib plates 5.

In this embodiment, the claw arm 7 and the claw hook 8 are integrally formed forgings, and the inner side surface of the claw hook 8 is provided with a plurality of uniformly distributed toothed grooves, so that the welded part of the claw arm 7 and the claw hook is prevented from being broken when heavy machinery is disassembled.

In this embodiment, the bottom of the frame 2 is provided with universal wheels, thereby facilitating movement.

The specific working process and principle are as follows:

when the wheel type machine tool is disassembled, the three-jaw wheel extractor is firstly conveyed to a specified place, the disassembling device is fixed in place, the extension and descent oil cylinder is started to adjust to the height corresponding to the main shaft of the device, the claw-pulling hook tightly embraces the wheel groove of the disassembling part, the hydraulic station 9 is started, and the horizontal oil cylinder 6 is driven to push out the main shaft from the extension top 4 to complete the disassembling work.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The utility model provides a three-jaw wheel puller which characterized in that: the lifting device comprises a rack, wherein vertical rails and lifting oil cylinders are arranged on two sides of the rack, the lifting oil cylinders are arranged on the inner sides of the vertical rails, traction parts are arranged in the vertical rails, the traction parts are fixedly connected with movable rods of the lifting oil cylinders, the traction parts on the two sides are fixedly connected, fixed horizontal oil cylinders and claw discs are arranged on the traction parts, shaft cylinders are arranged at the centers of the claw discs, a plurality of pulling claws are arranged at the edges of the claw discs, the movable rods of the horizontal oil cylinders transversely penetrate through the shaft cylinders, and telescopic tops are arranged at the tail ends of the movable rods of the horizontal oil cylinders; the rear part of the rack is provided with a support, a hydraulic station is arranged on the support and is communicated with the upgrading oil cylinder and the horizontal oil cylinder through a hydraulic pipe, and a return valve and an overflow valve are arranged on the hydraulic pipe.

2. A three-jaw wheel extractor according to claim 1, wherein: the end face of the claw disc is provided with three pulling claws which are uniformly distributed in the circumferential direction, each pulling claw comprises a claw arm and a claw hook arranged at the tail end of the claw arm, and the outer side wall of the shaft cylinder and the claw disc are connected and reinforced through a plurality of triangular rib plates which are axially arranged.

3. A three-jaw wheel extractor according to claim 2, wherein: the claw arm and the claw hook are integrally formed forgings, and a plurality of uniformly distributed toothed grooves are formed in the inner side face of the claw hook.

4. A three-jaw wheel extractor according to claim 1, wherein: the bottom of the frame is provided with universal wheels.