CN203527369U

CN203527369U - Disk pulling device

Info

Publication number: CN203527369U
Application number: CN201320609854.0U
Authority: CN
Inventors: 詹深鑫
Original assignee: Individual
Current assignee: Jingbian Oil Extraction Factory Shaanxi Yanchang Oilfield Co ltd
Priority date: 2013-09-25
Filing date: 2013-09-25
Publication date: 2014-04-09
Anticipated expiration: 2023-09-25

Abstract

The utility model discloses a disk pulling device. The disk pulling device comprises a fixed disk and a jack, wherein the fixed disk is a circular disk, three or four pairs of fixed arms are evenly arranged on the circumference of the side face of the fixed disk, the fixed disk and the fixed arms are of an integral structure, a tension claw is hinged to each pair of fixed arms, each tension claw is of an integral rod-shaped structure which is composed of a front rod, a rear rod and a claw hook, the length of each front rod is equal to that of the corresponding rear rod, an included angle is formed between each front rod and the corresponding rear rod, an included angle is also formed between each claw hook and the corresponding rear rod, the top end of each claw hook faces the side, with the included angle, of the corresponding front rod and the side, with the included angle, of the corresponding rear rod, and all the claw hooks face the side, with the center of the circle, of the fixed disk. According to the disk pulling device, the structure is simple, operation is rapid, time and labor are saved, the defect that when an existing manual disk pulling device is used, time consumption and labor consumption are high is overcome, the complex structural design of the existing manual disk pulling device is avoided, and the cost is reduced.

Description

A kind of disk puller

Technical field

The utility model is a kind of instrument, is specifically related to a kind of disk puller.

Background technology

Disk puller refers to a kind of instrument that takes off discoid part from axial workpiece.Existing disk puller kind is a lot, roughly can be divided into manual and automatic two types.The structure of manual disk puller is generally the screw mandrel that Yi Ge center band screw, periphery are connected with the union body of 3-4 hook and are arranged in above-mentioned union body center screw.During use, hook is hooked to the surrounding of the disk-shaped part that will choose, the taper of screw mandrel or domed ends fix in the centre bore of axle.Operating personnel's proficiency is rotary screw ceaselessly, makes hook do counter motion together with disk-shaped part and axle, until disk-shaped part is extracted from axle.Can find out, manual disk puller is undertaken by screw thread, relatively wastes time and energy.Disk puller is generally to power, to carry out driver chuck by hydraulic means automatically, and it is time saving and energy saving, easy to operate, but the general more complicated of its structure, generally include union body and hydraulic means with hook, and hydraulic means and be designed to integrated device with the union body of hook, cost is also higher.

In addition, traditional hook is generally arc main body and its top design is that hook-shaped, such hook need to utilize a rod member to be hinged on union body, and this rod member one end and union body are hinged, and the other end and hook root are hinged; Although the hinged structure in two ends makes hook spatially movable driver chuck process is conventionally firmly larger flexibly like this, cause rod member fragile or itself and the junction damage of miscellaneous part, make disk puller durable not.

Summary of the invention

For the defect existing in above-mentioned prior art or deficiency, the purpose of this utility model is, a kind of disk puller is provided, and this disk puller is simple in structure, swift to operate, time saving and energy saving.Overcome the defect wasting time and energy of existing manual disk puller, also avoided the complicated structural design of existing automatic disk puller, reduced cost.

In order to realize above-mentioned task, the utility model adopts following technical scheme:

A disk puller, is comprised of fixed disk and jack; Wherein:

Described fixed disk is a disk, within one week, is evenly provided with 3 or 4 pairs of fixed arms in fixed disk side, and fixed disk and fixed arm are structure as a whole; On every a pair of fixed arm, be hinged with a pulling force pawl; Described pulling force pawl is the one rod shaped structure consisting of front bar, rear bar and claw hook, front bar and rear bar equal in length and have angle between the two; Between claw hook and rear bar, also have angle, and the top of claw hook there is a side of angle towards front bar and rear bar; All claw hooks are towards the fixed disk center of circle one side.

The utility model also comprises following other technologies feature:

Angle between described front bar and rear bar is 110 ° ~ 150 °.

Angle between described front bar and rear bar is 120 °.

Angle between described rear bar and claw hook is 90 °.

The top of the front bar of described pulling force pawl and the top of each fixed arm are equipped with installing hole, and the top of front bar, between its corresponding a pair of fixed arm, and is hinged by pin with them.

Described jack adopts fluid pressure type jack or gear type jack.

Compare with existing bearing block sand prevention lid, adopt and the utlity model has following advantage:

1, fixed disk and fixed arm are structure as a whole, the integrative-structure that pulling force pawl is comprised of front bar, rear bar and claw hook, and compared to existing arc pulling force pawl, the processing of pulling force pawl is simple; And in the utility model, fixed disk and fixed arm only have the hinged space operation that can complete pulling force pawl in a place, make disk puller of the present utility model durable.

2, the angle design of claw hook and rear bar, make pulling force pawl when fastening disk-shaped part, can fit the completely end face of disk-shaped part of the medial surface of claw hook, simultaneously, the front bar of pulling force pawl and the angle design of rear bar make pulling force pawl effectively to fasten disk-shaped part, therefore, and in the process of choosing, the driving force that pulling force pawl can make full use of jack reaches effectively chooses, and pulling force pawl is not fragile.

3, in the utility model, jack is individual components, it does not connect as one with fixed disk, therefore in disk puller used time not, jack also can usually use, having avoided hydraulic means and union body in existing automatic disk puller must be integrated device, thereby makes the utility model simple in structure, cost.

Accompanying drawing explanation

Fig. 1 is the structural representation of disk puller of the present utility model.

Fig. 2 is the structural representation of pulling force pawl.

Below in conjunction with drawings and Examples, the utility model is further explained.

The specific embodiment

As shown in Figure 1 and Figure 2, disk puller of the present utility model, is comprised of fixed disk 1 and jack, and described fixed disk 1 is a disk, in fixed disk 1 side, within one week, is evenly provided with 3 or 4 pairs of fixed arms 2, and fixed disk 1 is structure as a whole with fixed arm 2; On every a pair of fixed arm 2, be hinged with a pulling force pawl 3; Described pulling force pawl 3 is the one rod shaped structure that consist of front bar 31, rear bar 32 and claw hook 33, and the equal in length and angle between the two of front bar 31 and rear bar 32 is 110 ° ~ 150 °; Claw hook 33 is 90 ° with the angle of rear bar 32, and there is a side of angle on the top of claw hook 33 towards front bar 31 and rear bar 32; All claw hooks 33 are towards fixed disk 1 center of circle one side.The top of the front bar 31 of pulling force pawl 3 and the top of each fixed arm 2 are equipped with installing hole, and the top of front bar 21 is between its corresponding a pair of fixed arm 2 and be hinged by pin with them.

Described jack adopts fluid pressure type jack or gear type jack.

Use the utility model when axle is chosen discoid part, when operating personnel hold fixed disk 1 on the other hand, fixed disk 1 is over against the end face of axle, and the inner side of the claw hook 33 on all pulling force pawls 3 is fastened to discoid part, then to abaxial direction, gently draw fixed disk 1 to make claw hook 33 fastening discoid parts; Now, jack is put into the space that all pulling force pawls 3 form from the space between adjacent two pulling force pawls 3, the base of jack is placed in to the surface of fixed disk 1, make the top of jack withstand the end face of axle.Now start jack, jack is because top is ended by the end face of axle, its base of its drive force moves to abaxial direction, thereby withstanding fixed disk 1 makes it and self moves in the same way, fixed disk 1 drives pulling force pawl 3 to abaxial direction motion, thereby discoid part is pulled up from axle.

If when its internal diameter of choosing is less than the discoid part of top external diameter of jack, need between the top of jack and the end face of the axle at discoid part place, add the cylinder that an external diameter is less than discoid part internal diameter, can prevent from occurring the situation that discoid part cannot successfully be extracted by the prevention of the top of jack in the process of choosing.

The concrete specification of the present utility model as required specification of application designs, below an embodiment of the present utility model, this embodiment is applicable to choosing of discoid part on the axle of middle-size and small-size machinery, specifically for the choosing from motor reel by motor pulley, it is time saving and energy saving to operate.

In this embodiment: jack is selected the gear type jack of 5T; Fixed disk 1 selects steel plate to process, and its diameter is 150mm, thickness 35mm; The length of fixed arm 2 is 60mm, and the distance of a pair of fixed arm 2 roots is 25mm; The front bar 31 of pulling force pawl 3, the length of rear bar 32 are 240mm, and the angle between front bar 31, rear bar 32 is 120 °, and the angle between rear bar 32 and claw hook 33 is 90 °, and the length of claw hook 33 is 50mm.

Claims

1. a disk puller, is characterized in that, fixed disk (1) and jack, consists of; Wherein:

Described fixed disk (1) is a disk, at fixed disk (1) edge, is evenly provided with 3 or 4 pairs of fixed arms (2), and fixed disk (1) is structure as a whole with fixed arm (2); On every a pair of fixed arm (2), be hinged with a pulling force pawl (3); This pulling force pawl (3) is the one rod shaped structure consisting of front bar (31), rear bar (32) and claw hook (33), front bar (31) and rear bar (32) equal in length and have angle between the two; Between claw hook (33) and rear bar (32), also have angle, and the top of claw hook (33) there is a side of angle towards front bar (31) and rear bar (32); All claw hooks (33) are towards fixed disk (1) center of circle one side.

2. disk puller as claimed in claim 1, is characterized in that, the angle between described front bar (31) and rear bar (32) is 110 °～150 °.

3. disk puller as claimed in claim 2, is characterized in that, the angle between described front bar (31) and rear bar (32) is 120 °.

4. disk puller as claimed in claim 1, is characterized in that, the angle between described rear bar (32) and claw hook (33) is 90 °.

5. disk puller as claimed in claim 1, it is characterized in that, the top of the front bar (31) of described pulling force pawl (3) and the top of each fixed arm (2) are equipped with installing hole, the top of front bar (21) is positioned between its corresponding a pair of fixed arm (2), and is hinged by pin with them.

6. disk puller as claimed in claim 1, is characterized in that, described jack adopts fluid pressure type jack or gear type jack.