CN211565730U

CN211565730U - Inner clamping type three-jaw puller

Info

Publication number: CN211565730U
Application number: CN201922160471.XU
Authority: CN
Inventors: 李增煜; 曹丛波; 叶小红
Original assignee: Lechang Hengfa Textile Enterprise Co ltd
Current assignee: Lechang Hengfa Textile Enterprise Co ltd
Priority date: 2019-12-05
Filing date: 2019-12-05
Publication date: 2020-09-25
Anticipated expiration: 2029-12-05

Abstract

The utility model discloses an inner clamping type three-jaw puller, which comprises a puller seat and an extrusion plate, wherein a screw rod is connected with the inner thread of the puller seat, a rotary handle is welded at the end part of the screw rod, a thread sleeve is connected with the screw rod through a thread, a first fixed block is welded on the outer wall of the thread sleeve, a second fixed block and a second U-shaped plate are welded on the outer wall of the extrusion plate, a connecting rod is rotatably connected between the first fixed block and the second fixed block, a slide rod is fixedly arranged on the second U-shaped plate through a bolt, a first U-shaped plate is welded on the outer wall of a supporting plate, the first U-shaped plate is rotatably connected on the slide rod, when the puller clamps a fixed piece, according to the structure of the fixed piece, the angle of the extrusion plate is adjusted by rotating the screw rod while the supporting plate is rotated, so that the outer surface of the extrusion plate is completely attached to the outer, the unhooking situation is prevented better.

Description

Inner clamping type three-jaw puller

Technical Field

The utility model belongs to the technical field of the three-jaw draws horse equipment, concretely relates to interior card formula three-jaw draws horse.

Background

Three-jaw pullers are frequently used tools in mechanical maintenance. Mainly for axially removing damaged bearings from the shaft. Mainly comprises a rotating handle, a screw rod and a pulling claw. The bearing has two claws and three claws, and the main sizes are the length of the pulling claw, the distance between the pulling claws and the length of the screw rod so as to adapt to bearings with different diameters and different axial installation depths. When the device is used, the screw rod tip is positioned in the shaft end tip hole to adjust the position of the pull claw, so that the pull claw is hooked on the outer ring of the bearing, and the pull claw drives the bearing to move outwards along the axial direction to be dismounted by rotating the rotating handle.

At present, the internal clamping type three-jaw puller is frequently unhooked in the using process, an operator needs to operate again, and the working efficiency is greatly reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an inside callipers formula three-jaw draws horse to solve present inside callipers formula three-jaw and draw the in-process that the horse was using, the condition of unhook often appears, and the operator need operate once more again, great reduction work efficiency's problem.

In order to achieve the above object, the utility model provides a following technical scheme: an inner clamping type three-jaw puller comprises a puller seat and an extrusion plate, wherein a screw rod is connected with the inner thread of the puller seat, a rotary handle is welded at the end part of the screw rod, three groups of supporting blocks are welded on the outer wall of the puller seat, two groups of connecting sheets are fixedly installed on the supporting blocks through bolts, pulling jaws are fixedly installed on the two groups of connecting sheets through bolts, a threaded rod is connected with the pulling jaws through threads, the end part of the threaded rod is in key connection with a first bearing seat, a supporting plate is welded on the outer surface of the first bearing seat, a groove is formed in the supporting plate, a second bearing seat is welded at the bottom end of the groove, a lead screw is connected with the inner key of the second bearing seat, the lead screw is rotatably connected with the supporting plate, a threaded sleeve is in threaded connection with the lead screw, a first fixing block is welded on the outer wall of the, the connecting rod is connected between the first fixing block and the second fixing block in a rotating mode, a sliding rod is fixedly mounted on the second U-shaped plate through bolts, a first U-shaped plate is welded to the outer wall of the supporting plate, and the first U-shaped plate is connected to the sliding rod in a rotating mode.

Preferably, the end part of the threaded rod is welded with a rotating rod which is of a cylindrical structure.

Preferably, the outer wall of the pulling claw is provided with convex teeth.

Preferably, the outer wall of the extrusion plate is provided with clamping teeth, and the clamping teeth are uniformly distributed on the outer surface of the extrusion plate.

Preferably, a nut is welded on the screw rod.

Preferably, the width of the first fixing block is 1-2mm smaller than that of the groove.

Compared with the prior art, the beneficial effects of the utility model are that:

the screw rod is connected with the screw seat through the internal thread of the screw seat, the end part of the screw rod is welded with the rotary handle, three groups of supporting blocks are welded on the outer wall of the screw seat, two groups of connecting pieces are fixedly arranged on the supporting blocks through bolts, a pulling claw is fixedly arranged on the two groups of connecting pieces through bolts, a threaded rod is connected on the pulling claw through threads, the end part key of the threaded rod is connected with a first bearing seat, the outer surface of the first bearing seat is welded with a supporting plate, a groove is arranged on the supporting plate, a second bearing seat is welded at the bottom end of the groove, a lead screw is connected in the second bearing seat through a key, the lead screw is rotatably connected on the supporting plate, a threaded sleeve is connected on the lead screw, a first fixing block is welded on the outer wall of the threaded sleeve, a second fixing block and a second U, the welding has first U template on the outer wall of backup pad, and first U template rotates to be connected on the slide bar, blocks when being fixed part when drawing the claw, according to the structure by the fixed part, when rotating the backup pad, the angle of stripper plate is adjusted to rotatory lead screw, makes the surface of stripper plate laminate completely by the surface of fixed part, and rotatory threaded rod makes the stripper plate extrusion by the surface of fixed part, and the better condition that prevents to unhook appears.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

FIG. 3 is an enlarged view of area A of FIG. 2, particularly illustrating the relationship between the first bearing seat and the stripper plate;

fig. 4 is a relation diagram of the first U-shaped plate and the second U-shaped plate of the present invention.

In the figure: 1. a screw rod; 2. turning a handle; 3. a puller seat; 4. a support block; 5. pulling a claw; 6. connecting sheets; 7. a threaded rod; 8. a first bearing housing; 9. a support plate; 10. a screw rod; 11. a nut; 12. a second bearing housing; 13. a threaded sleeve; 14. a first fixed block; 15. a pressing plate; 16. a connecting rod; 17. a second fixed block; 18. a rotating rod; 19. a convex tooth; 20. a first U-shaped plate; 21. a second U-shaped plate; 22. a slide bar; 23. clamping teeth; 24. and (4) a groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: an inner clamping type three-jaw puller comprises a puller seat 3 and an extrusion plate 15, wherein a screw rod 1 is connected with the inner thread of the puller seat 3, a rotating handle 2 is welded at the end part of the screw rod 1, three groups of supporting blocks 4 are welded on the outer wall of the puller seat 3, two groups of connecting sheets 6 are fixedly installed on the supporting blocks 4 through bolts, pulling jaws 5 are fixedly installed on the two groups of connecting sheets 6 through bolts, convex teeth 19 are arranged on the outer wall of the pulling jaws 5, the pulling jaws 5 are prevented from falling off a fixed part, a threaded rod 7 is connected with the pulling jaws 5 through threads, a rotating rod 18 is welded at the end part of the threaded rod 7, the rotating rod 18 is of a cylindrical structure and is convenient for rotating the threaded rod 7, a first bearing seat 8 is connected with the end part of the threaded rod 7 through a key, a supporting plate 9 is welded on the outer surface of the first bearing seat 8, a groove, a screw rod 10 is connected with the inner key of the second bearing seat 12, the screw rod 10 is rotatably connected with the supporting plate 9, a thread sleeve 13 is connected with the screw rod 10 in a threaded manner, a nut 11 is welded on the screw rod 10 to facilitate the rotation of the screw rod 10, a first fixing block 14 is welded on the outer wall of the thread sleeve 13, the width of the first fixing block 14 is 1-2mm smaller than that of a groove 24, the first fixing block 14 is effectively prevented from offsetting, a second fixing block 17 and a second U-shaped plate 21 are welded on the outer wall of the extrusion plate 15, a latch 23 is arranged on the outer wall of the extrusion plate 15, the latch 23 is uniformly distributed on the outer surface of the extrusion plate 15, the latch 23 enables a fixed part to be fixed more firmly, a connecting rod 16 is rotatably connected between the first fixing block 14 and the second fixing block 17, a sliding rod 22 is fixedly installed on the second U-shaped plate 21 through a bolt, first U-shaped plate 20 is pivotally attached to slide bar 22.

The working principle is as follows: when the pulling claw 5 clamps the fixed part, according to the structure of the fixed part, the supporting plate 9 is rotated, and meanwhile, the angle of the extrusion plate 15 is adjusted by the rotary screw rod 10, so that the outer surface of the extrusion plate 15 is completely attached to the outer surface of the fixed part, the threaded rod 7 is rotated, the outer surface of the fixed part is extruded by the extrusion plate 15, and the unhooking is prevented better.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an interior card formula three-jaw draws horse, includes draws horse seat (3) and stripper plate (15), its characterized in that: the screw rod (1) is connected with the inner thread of the puller seat (3), the end part of the screw rod (1) is welded with a screw handle (2), three groups of supporting blocks (4) are welded on the outer wall of the puller seat (3), two groups of connecting sheets (6) are fixedly installed on the supporting blocks (4) through bolts, two groups of connecting sheets (6) are fixedly installed with pull claws (5) through bolts, the pull claws (5) are connected with threaded rods (7) through threads, the end part of each threaded rod (7) is connected with a first bearing seat (8) through a key, a supporting plate (9) is welded on the outer surface of each first bearing seat (8), a groove (24) is formed in the supporting plate (9), a second bearing seat (12) is welded at the bottom end of the groove (24), a screw rod (10) is connected with the inner key of the second bearing seat (12), and the screw rod, threaded connection has thread bush (13) on lead screw (10), the welding has first fixed block (14) on the outer wall of thread bush (13), the welding has second fixed block (17) and second U template (21) on the outer wall of stripper plate (15), it is connected with connecting rod (16) to rotate between first fixed block (14) and second fixed block (17), there is slide bar (22) through bolt fixed mounting on second U template (21), the welding has first U template (20) on the outer wall of backup pad (9), first U template (20) rotate to be connected on slide bar (22).

2. The internally-clamped three-jaw puller according to claim 1, wherein: the end part of the threaded rod (7) is welded with a rotating rod (18), and the rotating rod (18) is of a cylindrical structure.

3. The internally-clamped three-jaw puller according to claim 1, wherein: the outer wall of the pull claw (5) is provided with convex teeth (19).

4. The internally-clamped three-jaw puller according to claim 1, wherein: the outer wall of the extrusion plate (15) is provided with clamping teeth (23), and the clamping teeth (23) are uniformly distributed on the outer surface of the extrusion plate (15).

5. The internally-clamped three-jaw puller according to claim 1, wherein: and a nut (11) is welded on the screw rod (10).

6. The internally-clamped three-jaw puller according to claim 1, wherein: the width of the first fixing block (14) is 1-2mm smaller than that of the groove (24).