CN213197351U

CN213197351U - Lengthened puller

Info

Publication number: CN213197351U
Application number: CN202021371497.5U
Authority: CN
Inventors: 白峰; 吴红梅; 杨建华; 王学良; 郝小刚
Original assignee: Yongping Oil Refinery Of Shaanxi Yanchang Petroleum Group Co ltd
Current assignee: Yongping Oil Refinery Of Shaanxi Yanchang Petroleum Group Co ltd
Priority date: 2020-07-14
Filing date: 2020-07-14
Publication date: 2021-05-14
Anticipated expiration: 2030-07-14

Abstract

The utility model provides an extension draws horse, including the lead screw, draw the claw, take nut claw frame, draw the claw connection piece, draw claw mount and built-up connection bolt, draw the claw and draw the claw connection piece to be two at least, built-up connection bolt is two at least, draw the claw through drawing the claw connection piece and draw the claw mount to be connected, draw claw mount center to have seted up through-hole one, built-up connection bolt one end with draw the claw mount to be connected, the built-up connection bolt other end is connected with taking nut claw frame, it is adjustable to draw the distance between claw mount and the area nut claw frame, the lead screw passes the center of taking nut claw frame, and both threaded connection. Through adjusting the length of combining connecting bolt, can adjust and draw the distance between claw mount and the lead screw, realize that the lead screw top is in axle head apex hole, draw the claw can hook the part that will dismantle, dismantle the part of the different distance of axle head. The utility model discloses effectively lengthened the application range of instrument, improved work efficiency, the use is simple, convenient simultaneously.

Description

Lengthened puller

Technical Field

The utility model belongs to the technical field of the maintenance extracting tool is examined to equipment, concretely relates to extension draws horse for dismantle axle type part.

Background

In pump class overhaul of the equipments, often need to dismantle the shaft class part, the bearing is because there is the distance far away apart from the axle head, can't use standard three-jaw to draw the horse to dismantle, and traditional way is to use the bar copper to strike the dismantlement. The disassembly process is slow, the physical consumption of maintainers is large, and the bearings, the shafts and the like are easily damaged, so that the overhaul time is prolonged, and the overhaul workload is increased.

The standard three-jaw puller has the following problems:

1. because the distance between the part on the shaft and the end part of the shaft is larger than the working range of the standard three-jaw wheel puller, the standard three-jaw wheel puller cannot be used;

2. knock the dismantlement with the bar copper. The disassembly process is slow, the physical consumption of maintainers is large, and the bearings, the shafts and the like are easily damaged, so that the overhaul time is prolonged, and the overhaul workload is increased;

3. the large-size three-jaw puller is inconvenient to operate when used for disassembling small parts such as bearings due to large size and heavy weight, and can be operated by more people at the same time.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an extension draws horse overcomes the above-mentioned technical problem who exists among the prior art.

Therefore, the utility model provides a technical scheme as follows:

the utility model provides an extension draws horse, includes the lead screw, draws the claw, takes nut claw frame and draws the claw connection piece, draws the claw and draws the claw connection piece to be two at least, still including drawing claw mount and built-up connection bolt, built-up connection bolt is two at least, draw the claw through drawing the claw connection piece with draw the claw mount to be connected, draw claw mount center to have seted up through-hole one, built-up connection bolt one end with draw the claw mount to be connected, the built-up connection bolt other end is connected with takes nut claw frame, draw the claw mount and take the nut claw to take the distance between the frame adjustable, the lead screw passes the center of taking nut claw frame, and both threaded connection.

Draw the claw mount to include tourus and lug, the lug be a plurality of and with draw the claw one-to-one, a plurality of lugs along tourus side circumference evenly arranged, be equipped with bolt hole one on the lug, bolt hole one and tourus axial vertical, tourus is last evenly to be equipped with a plurality of bolt holes two along surface circumference, bolt hole two and built-up connection bolt one-to-one, bolt hole two sets up along the axial.

The combined connecting bolt comprises a cylinder and a grooving head, the cylinder is connected with the grooving head, an external thread is arranged on the cylinder, a second through hole is formed in the grooving head, one end of the cylinder of the combined connecting bolt is in threaded connection with the pull claw fixing frame, and one end of the grooving head is in threaded connection with the claw frame with the nut.

The top of the screw rod is provided with a rotating handle.

The pull claw is an arc hook pull claw.

The number of the pull claws and the number of the pull claw connecting pieces are three, and the number of the combined connecting bolts is three.

The utility model has the advantages that:

the utility model provides a horse is drawn in this kind of extension has increased in the structure of horse is drawn to the standard and has drawn claw mount and built-up connection bolt, through adjusting the length to built-up connection bolt, can adjust the distance of drawing between claw mount and the lead screw, realizes that the lead screw top when axle head apex hole, draws the claw to hook the part that will dismantle, dismantles the part of the different distance of axle head.

The utility model discloses effectively lengthened the application range of instrument, improved work efficiency, the use is simple, convenient simultaneously.

In order to make the above and other objects of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of a pull claw fixing frame 3 of the present invention;

fig. 2 is a schematic structural diagram of an embodiment of the combined connecting bolt 4 of the present invention;

fig. 3 is a schematic diagram of an embodiment of the lengthened puller of the present invention.

In the figure:

description of reference numerals:

1. pulling a claw; 2. a pull claw connecting sheet; 3. a pull claw fixing frame; 4. assembling a connecting bolt; 5. a claw frame with a nut; 6. a lead screw; 7. a torus; 8. a lug; 9. a first bolt hole; 10. a second bolt hole; 11. a cylinder; 12. grooving heads; 13. a first through hole; 14. a second through hole; 15. a bearing; 16. a shaft.

Detailed Description

The following description is provided for illustrative embodiments of the present invention, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein.

In the present invention, the upper, lower, left and right in the drawings are regarded as the upper, lower, left and right of the extension puller described in the present specification.

The exemplary embodiments of the present invention will now be described with reference to the accompanying drawings, which, however, may be embodied in many different forms and are not limited to the embodiments described herein, which are provided for complete and complete disclosure of the present invention and to fully convey the scope of the invention to those skilled in the art. The terminology used in the exemplary embodiments presented in the accompanying drawings is not intended to be limiting of the invention. In the drawings, the same units/elements are denoted by the same reference numerals.

Unless otherwise defined, terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Further, it will be understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense.

Example 1:

the utility model provides an extension draws horse, include lead screw 6, draw claw 1, take nut claw frame 5 and draw claw connection piece 2, draw claw 1 and draw claw connection piece 2 to be two at least, still include and draw claw mount 3 and built-up connection bolt 4, built-up connection bolt 4 is two at least, draw claw 1 respectively through drawing claw connection piece 2 with draw claw mount 3 to be connected, draw claw mount 3 center to have seted up through-hole 13, built-up connection bolt 4 one end with draw claw mount 3 to be connected, the built-up connection bolt 4 other end is connected with take nut claw frame 5, it is adjustable to draw the distance between claw mount 3 and the take nut claw frame 5, lead screw 6 passes the center of taking nut claw frame 5, and both threaded connection.

The use process comprises the following steps: the shaft 16 of the part to be disassembled penetrates through the first through hole 13 of the pull claw fixing frame 3, the lead screw 6 props against a tip hole at the end of the shaft 16, the distance between the pull claw fixing frame 3 and the claw frame 5 with the nut is adjusted through the combined connecting bolt 4, the part to be disassembled is hooked by the pull claw 1, and then the lead screw 6 is screwed by a wrench, so that the part can be easily disassembled.

The utility model provides a horse is drawn in this kind of extension has increased in the structure of horse is drawn to the standard and has drawn claw mount 3 and built-up connection bolt 4, through adjusting the length to built-up connection bolt 4, can adjust the distance of drawing between claw mount 3 and the lead screw 6, realizes that lead screw 6 top when 16 end apical foramens of axle, draws claw 1 to hook the part that will dismantle, dismantles apart from 16 parts of different distances of end of axle.

Example 2:

on embodiment 1's basis, the utility model provides an extension draws horse, it includes torus 7 and lug 8 to draw claw mount 3, lug 8 be a plurality of and with draw 1 one-to-one of claw, and a plurality of lugs 8 are evenly arranged along torus 7 side circumference, be equipped with bolt hole 9 on the lug 8, bolt hole 9 is perpendicular with torus 7 axial, torus 7 is last evenly to be equipped with a plurality of bolt holes two 10 along surface circumference, bolt hole two 10 and built-up connection bolt 4 one-to-one, bolt hole two 10 are along axial setting.

The combined connecting bolt 4 penetrates through the bolt hole II 10 and then is fixed by a nut, the distance between the pull claw fixing frame 3 and the claw frame 5 with the nut, namely the working length of the puller can be adjusted by adjusting the position of the nut, and parts with different distances from the end 16 can be easily disassembled.

Example 3:

on the basis of embodiment 1, the utility model provides an extension draws horse, built-up connection bolt 4 includes cylinder 11 and fluting head 12, cylinder 11 is connected with fluting head 12, be equipped with the external screw thread on the cylinder 11, be equipped with two 14 through-holes on the

fluting head

12, 11 one end of built-up connection bolt 4 cylinder with draw 3 threaded connection of claw mount, fluting head 12 one end and 5 threaded connection of band nut claw frame. As shown in fig. 2.

The combined connecting bolt 4 penetrates through the bolt hole II 10 of the pull claw fixing frame 3 and then is fixed by a nut, one end of the slotted head 12 is in threaded connection with the pull claw fixing frame 3 and then is fixed by a bolt, and therefore the extension of the puller is achieved.

Example 4:

on the basis of embodiment 1, the utility model provides an extension draws horse, 6 tops of lead screw are equipped with changes the handle.

The use process comprises the following steps: the shaft 16 of the part to be disassembled penetrates through the first through hole 13 of the pull claw fixing frame 3, the lead screw 6 props against a tip hole at the end of the shaft 16, the distance between the pull claw fixing frame 3 and the claw frame 5 with the nut is adjusted through the combined connecting bolt 4, the part to be disassembled is hooked by the pull claw 1, and then the rotating handle is rotated, so that the part can be easily disassembled.

Example 5:

on the basis of embodiment 1, this embodiment provides a lengthened puller, and the pulling claw 1 and the pulling claw connecting piece 2 are all three, and the composite connecting bolt 4 is three. Namely, the embodiment provides the lengthened three-jaw puller.

The standard three-jaw puller consists of five parts, namely a screw rod 6, a pulling jaw 1, a connecting bolt, a jaw frame 5 with a nut and a pulling jaw connecting sheet 2. Mainly used for disassembling disc-shaped parts at the end part of the shaft 16, such as a coupling, a gear, a belt pulley and the like. But the size of the pulling claw 1 is limited, and the pulling claw cannot be disassembled for some parts in the middle of the shaft 16, such as the bearing 15, the gear and the like.

The lengthened three-jaw puller comprises a screw rod 6, a pulling jaw 1, a jaw frame 5 with a nut, a pulling jaw connecting piece 2, a pulling jaw fixing frame 3 and a combined connecting bolt 4, as shown in figure 3.

As shown in figure 1, three lugs 8 on the pulling claw fixing frame 3 are respectively provided with a bolt hole I9, and the three pulling claws 1 are fixed through the pulling claw connecting sheets 2 and connecting bolts. Three holes are formed in the middle annular body 7 of the pull claw fixing frame 3 in the 120-degree direction and used for connecting three cylinders 11 (as shown in fig. 2, the whole body of the cylinder 11 of the combined connecting bolt 4 is threaded) of the combined connecting bolts 4, and the slotted heads 12 of the combined connecting bolts 4 are connected with three lugs 8 on the claw frame 5 with the nut through bolts.

And installing a pulling claw fixing frame 3 and a combined connecting bolt 4 between a pulling claw 1 and a claw frame 5 with a nut of a standard three-claw puller. When the three-jaw combined connecting bolt is used, three pulling jaws 1 of a standard three-jaw puller and a pulling jaw connecting sheet 2 are firstly detached from a jaw frame with a nut 5 together, then the three pulling jaws 1 are connected to three lugs 8 of a pulling jaw fixing frame 3 in a lengthening tool through the pulling jaw connecting sheet 2 and a bolt penetrating through a bolt through hole I13, three combined connecting bolts 4 penetrate through a bolt through hole II 14 on a middle annular body 7 of the pulling jaw fixing frame 3, a nut is arranged at the other end of the combined connecting bolt, the working length of the tool is adjusted by adjusting the position of the nut, a head (U-shaped groove) with a groove of the three combined connecting bolts 4 is inserted into the three lugs of the jaw frame with the nut 5 of the standard three-jaw puller and is fixed by the bolt, and therefore, the three-jaw puller is lengthened.

The three pulling claws 1 hook the parts to be disassembled, the screw rod 6 props against the tip hole at the end of the shaft 16, and the parts can be easily disassembled by screwing the screw rod 6 with a wrench. By adjusting the length of the connecting bolt, parts with different distances from the end 16 can be easily disassembled.

In the present embodiment, the pulling claw 1 is an arc hook pulling claw. The structure of the claw frame with the nut 5 is the same as that of the pull claw fixing frame 3, and the difference is that the bolt hole II 10 is not arranged on the claw frame with the nut 5.

In the present invention, the pull claws may be two, four, five, etc. except three, and the structure and principle are the same as those of embodiment 5.

To sum up, the utility model provides a horse is drawn in this kind of extension has increased in the structure of horse is drawn to the standard and has drawn claw mount 3 and built-up connection bolt 4, through adjusting the length to built-up connection bolt 4, can adjust the distance of drawing between claw mount 3 and the lead screw 6, realizes that lead screw 6 top when 16 end apical foramens of axle, draws claw 1 to hook the part that will dismantle, dismantles apart from 16 parts of different distance of end of axle.

It will be understood by those skilled in the art that the foregoing embodiments are specific examples of the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in its practical application.

Claims

1. The utility model provides a horse is drawn in extension, includes lead screw (6), draws claw (1), takes nut claw frame (5) and draws claw connection piece (2), draws claw (1) and draws claw connection piece (2) to be two at least, its characterized in that: still including drawing claw mount (3) and built-up connection bolt (4), built-up connection bolt (4) are two at least, draw claw (1) through drawing claw connection piece (2) and draw claw mount (3) to be connected, draw claw mount (3) center to have seted up through-hole one (13), built-up connection bolt (4) one end with draw claw mount (3) to be connected, the built-up connection bolt (4) other end is connected with area nut claw frame (5), it is adjustable to draw the distance between claw mount (3) and area nut claw frame (5), lead screw (6) pass the center of taking nut claw frame (5), and both threaded connection.

2. The elongated puller according to claim 1, wherein: draw claw mount (3) including torus (7) and lug (8), lug (8) be a plurality of and with draw claw (1) one-to-one, and a plurality of lugs (8) are evenly arranged along torus (7) side circumference, be equipped with bolt hole (9) on lug (8), bolt hole (9) and torus (7) axial vertical, torus (7) are gone up and are evenly equipped with a plurality of bolt holes two (10) along surface circumference, bolt hole two (10) and built-up connection bolt (4) one-to-one, bolt hole two (10) set up along the axial.

3. The elongated puller according to claim 1, wherein: combination connecting bolt (4) include cylinder (11) and fluting head (12), cylinder (11) are connected with fluting head (12), be equipped with the external screw thread on cylinder (11), be equipped with through-hole two (14) on fluting head (12), combination connecting bolt (4) cylinder (11) one end with draw claw mount (3) threaded connection, fluting head (12) one end and take nut claw frame (5) threaded connection.

4. An elongated puller according to any one of claims 1-3, wherein: the top of the screw rod (6) is provided with a rotating handle.

5. An elongated puller according to any one of claims 1-3, wherein: the pull claw (1) is an arc hook pull claw.

6. An elongated puller according to any one of claims 1-3, wherein: the number of the pull claws (1) and the number of the pull claw connecting pieces (2) are three, and the number of the combined connecting bolts (4) is three.