CN201744968U

CN201744968U - Direct-moving type puller

Info

Publication number: CN201744968U
Application number: CN2010202434712U
Authority: CN
Inventors: 王振涛
Original assignee: Tianjin Iron and Steel Group Co Ltd
Current assignee: Tianjin Iron and Steel Group Co Ltd
Priority date: 2010-06-30
Filing date: 2010-06-30
Publication date: 2011-02-16
Anticipated expiration: 2020-06-30

Abstract

The utility model relates to a direct-moving type puller, comprising a bracket, a jacking rod, a puller arm and a pull claw, wherein the jacking rod is arranged on the bracket; the puller arm is connected with the bracket; and the pull claw is connected with the puller arm. The puller is characterized in that the bracket is provided with a slide groove, and connected with the puller arm through the slide groove; the puller arm is provided with a plurality of pin holes, and is connected with the pull claw through the pin holes and a bolt. The utility model has the advantage that compared with the prior art, the radial and axial connecting positions of the puller are respectively adjusted, the operation is convenient, and the space for opening and closing the puller is reduced; in addition, the circular workpiece is stably clamped by the L-shaped pull claw, and is difficult to generate hook disengagement.

Description

A kind of Direct Action Type is drawn horse

Technical field

The utility model belongs to machine components extracting tool technical field, particularly relates to a kind of Direct Action Type and draws horse.

Background technology

At present, draw horse except that be applicable to that rail truck maintenance, machinery are installed, safeguard in the mine, the support of architectural engineering and general weight hoist declines with, round shape workpiece such as the belt pulley in the still detachable various plant equipment, gear, bearing.The employed structure of drawing horse such as Fig. 3 that is used to dismantle circular pieces such as bearing is generally in the flight-line maintenance: comprise support, be installed on push rod on the support, be connected with support draw the horse arm and with draw grasping that the horse arm is connected.Above-mentioned two ends of drawing the horse arm are connected with grasping with support by axle respectively, and grasp and be arcuate structure.Above-mentionedly draw horse in use, draw horse promptly axle go up in the process of workpiece, grasp the interlock motion axially and in the radial direction taking place, operating personnel are difficult to grasp and draw the hook of horse to draw the position, and arc grasps easily and breaks off relations from round piece.In addition, above-mentionedly draw activity space required in the process of horse workpiece on axle promptly bigger, inconvenience is used to remove and install the round piece on little spatial axes.

Summary of the invention

The utility model for solve the technical problem that exists in the known technology provide a kind of simple in structure, easy to use, can be axially and vertically adjustment and grab and draw the little Direct Action Type of the required activity space of workpiece to draw horse respectively.

The technical scheme that the utility model is taked for the technical problem that exists in the solution known technology is: a kind of Direct Action Type is drawn horse, comprise support, be installed on push rod on the support, be connected with support draw the horse arm and with draw grasping that the horse arm is connected, it is characterized in that: described support is provided with chute, support draws the horse arm by the chute connection, the described horse arm that draws is provided with several pin-and-holes, draws on the horse arm to be connected with bolt by pin-and-hole to grasp.

The utility model can also adopt following technical scheme: described grasping is L type structure.

It is described that to draw the quantity of pin-and-hole on the horse arm be 3.

Advantage and the good effect that the utlity model has are: because the utility model adopts technique scheme, promptly draw the horse arm by the chute support that is connected, draw the horse arm to be connected the L type with bolt by pin-and-hole and grasp.The improvement of said structure makes draws in the utility model horse can realize it axially and motion respectively radially, thereby the position that makes things convenient for the user to adjust to grasp sockets the round piece that grasps on easier and the axle.In addition, the utility model draws horse to compare with now employed, draws horse opening and closing activity requisite space less, uses more convenient operation.

Description of drawings

Fig. 1 is a structural representation of the present utility model; Fig. 2 is user mode figure of the present utility model; Fig. 3 is the user mode figure that draws horse in the prior art.

Among the figure: 1, support; 1-1, chute; 2, draw the horse arm; 3, pin-and-hole; 4, grasp; 5, push rod; 6, round piece.

The specific embodiment

For further understanding summary of the invention of the present utility model, characteristics and effect, now exemplify following examples, and conjunction with figs. is described in detail as follows: see also Fig. 1 and Fig. 2, a kind of Direct Action Type is drawn horse, comprise support 1, described support 1 is provided with chute 1-1, the center of support 1 push rod 5 that is threaded, and push rod 5 is to have top leading screw.Described support 1 draws horse arm 2 by chute 1-1 connection.Drawing horse described in the present embodiment is two to grab formula, draws horse arm 2 so support 1 connects two by chute 1-1, and the utility model also can be A-frame and connects three and draw the horse arm, draws horse to form triangle.The above-mentioned end of horse arm 2 that draws is provided with several pin-and-holes 3, draws horse arm 2 to be connected the L type with bolt by pin-and-hole 3 and grasps 4.The quantity of drawing pin-and-hole 3 on the horse arm 2 in the utility model is 3.

When operation principle the utility model uses, at first according to the relative position of round piece on axle select to draw horse arm 2 with grasp 4 be connected pin-and-hole 3, promptly draw horse arm 2 and the axial location adjustment that pin-and-hole 3 realizes drawing horse that is connected that grasps 4 by adjustment.Afterwards, with the radial position of drawing horse arm 2 on support 1, to slide and draw horse with adjustment.Wait to draw the adjustment of horse position to finish, can begin to rotate push rod 5, push rod 5 produces axial force by holding out against spindle nose, thereby round piece 6 is pulled down.

The utility model draws horse to adopt axially and radially to adjust respectively with realization and sockets, and draws horse folding requisite space less.The drag hook place movement locus that grasps when drawing the horse folding is not irregular arc of the prior art (grasping the track that forms axially and in the radial direction linking), grasps the location simply accurately thereby make.In addition, the L type grasps and is connected more firmly with round piece, is not prone to the phenomenon of unhook.

Claims

1. a Direct Action Type is drawn horse, comprise support, be installed on push rod on the support, be connected with support draw the horse arm and with draw grasping that the horse arm is connected, it is characterized in that: described support is provided with chute, support draws the horse arm by the chute connection, the described horse arm that draws is provided with several pin-and-holes, draws on the horse arm to be connected with bolt by pin-and-hole to grasp.

2. Direct Action Type according to claim 1 is drawn horse, it is characterized in that: described grasping is L type structure.

3. Direct Action Type according to claim 1 is drawn horse, it is characterized in that: described to draw the quantity of pin-and-hole on the horse arm be 3.