CN218226426U

CN218226426U - Puller with slidable jaw

Info

Publication number: CN218226426U
Application number: CN202222047814.3U
Authority: CN
Inventors: 李胜强; 李建宁
Original assignee: Wuxi STA Pharmaceutical Co Ltd
Current assignee: Wuxi STA Pharmaceutical Co Ltd
Priority date: 2022-08-05
Filing date: 2022-08-05
Publication date: 2023-01-06
Anticipated expiration: 2032-08-05

Abstract

The utility model provides a jack catch slidable draws horse can solve inside callipers formula and draw horse can't touch the stress point to ordinary jack catch in the finite space, can't dismantle the sealed technical problem of lip. Adopt the utility model provides a pair of gripper slidable draws horse when axle and bearing seal are dismantled, only need stretch into the jack catch, removes the position of jack catch on the jack catch slide again, makes the jack catch hook of jack catch can touch the stress point of bearing seal, and the rethread draws the rotation of horse ejector pin, produces the pulling force that evenly lasts, avoids the easy damage position of extrusion collision bearing in limited working space scope, leads to the bearing seal to damage.

Description

Puller with slidable jaw

Technical Field

The utility model relates to a dismantlement field of bearing seal and special axle, in particular to jack catch slidable draws horse that is used for axle and lip seal to dismantle.

Background

The lip seal dismounting puller applied in the market mainly comprises an inner clamping type puller and an outer clamping type puller.

The inner clamping type shaft seal puller is generally characterized in that three jaws grab the bottom of a shaft seal inner ring and then screws a jackscrew to pull the shaft seal out of a base, but the inner clamping type shaft seal puller in the market is generally large in jaw size and enters the shaft seal inner ring by a small shaft seal jaw inserting method.

The external clamping type shaft seal mainly aims at a shaft seal which is coaxially or is installed on an optical axis, and a clamping jaw is used for clamping an outer ring of the shaft seal and pushing a jack screw to push against the shaft to pull out the shaft seal. The shaft seal and the shaft cannot be installed in the base through the externally clamped puller, the jaw size is large, and the jaw cannot enter a small shaft seal installation space.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a slide and draw horse, can solve inside callipers formula and draw the horse can't touch the stress point to ordinary jack catch in the finite space, can't dismantle the sealed technical problem of lip.

In order to solve the technical problem, the utility model provides a pair of gripper slidable draws horse, a serial communication port, include: the clamping jaw comprises at least two clamping jaws, wherein each clamping jaw consists of a clamping jaw handle, a clamping jaw arm and a clamping jaw hook in sequence; the clamping jaw sliding ways are detachably connected with the clamping jaws in a one-to-one correspondence manner; and the ejector rod penetrates through the puller seat and can reciprocate along the axis direction of the puller seat.

Specifically, a first baffle and a second baffle which are parallel to each other are further sequentially arranged at positions, close to the jaw handles, of the jaw arms, and the jaw arms are perpendicular to the first baffle and the second baffle.

Specifically, the distance between the first baffle and the second baffle is greater than the thickness of the puller seat, so that the jaw arm between the first baffle and the second baffle slides along the jaw slide way.

Specifically, the sectional areas of the first baffle and the second baffle are larger than the opening area of the clamping jaw slide way, so that the clamping jaw can be detachably hung on the clamping jaw slide way.

Specifically, the claw slide way is of an arc line type or a linear type.

Specifically, the puller seat further comprises a supporting seat, a supporting seat hole is formed in the center of the supporting seat, and the aperture and the hole pattern of the supporting seat hole are the same as those of the puller seat hole.

Specifically, the supporting seat and the puller seat are coaxially arranged and fixedly connected.

Specifically, the jaw arm is a straight arm type, and the jaw hook is C-shaped.

Specifically, the puller seat hole is a threaded hole.

Specifically, the ejector rod main body is a screw rod, and the thread on the screw rod enables the puller seat to be rotatably arranged on the ejector rod main body.

The utility model discloses a jack catch slidable that can be used to axle and bearing seal to dismantle draws horse only needs stretch into the jack catch, removes the position of jack catch on the jack catch slide again, makes the jack catch hook of jack catch can touch the stress point of bearing seal, and the rethread draws the rotation of horse ejector pin, produces the pulling force that evenly lasts, avoids the extrusion collision bearing vulnerable site in limited working space within range, leads to the bearing seal to damage.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings required for the present invention are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

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

fig. 2 is a schematic structural view of the middle puller seat of the present invention;

fig. 3 is a schematic structural diagram of the middle jaw of the present invention.

Description of the symbols

1. Top rod

2. Puller seat

21. Jack catch slide

22. Puller seat hole

23. Supporting seat

231. Support seat hole

3. Jack catch

31. Jack catch handle

32. Jack catch arm

321. First baffle

322. Second baffle

33. Claw hook

Detailed Description

The technical solutions of the present invention will be described in detail and fully hereinafter with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Example one

Referring to fig. 1-3, the utility model provides a jack catch slidable draws horse comprises ejector pin 1, draws

horse seat

2, 3 jack catches 3. The material of the puller is preferably stainless steel, cast iron or aluminum alloy. The jaw 3 sequentially comprises a jaw handle 31, a jaw arm 32 and a jaw hook 33, the jaw hook 33 is C-shaped, the jaw arm 32 is straight, a first baffle 321 and a second baffle 322 which are parallel to each other are sequentially arranged at the position, close to the jaw handle 31, of the jaw arm 32, and the first baffle 321 and the second baffle 322 are perpendicular to the jaw arm 32. The puller seat 2 is a round cake shape with a puller seat hole 22 in the center and is provided with a plurality of jaw slideways 21 which are opened towards the center along the edge of the round cake for the jaws 3 to slide, and the jaw slideways 21 are detachably connected with the jaws 3 in a one-to-one correspondence manner. The jaw slide 21 is of an arcuate or linear type. The jaw puller seat 2 of the jaw slidable puller provided by the embodiment further comprises a support seat 23, a support seat hole 231 is formed in the center of the support seat 23, and the aperture and the hole pattern of the support seat hole 231 are the same as those of the puller seat hole 22. The supporting seat 23 and the puller seat 2 are fixedly connected and can be in bolt connection, buckle connection or integrated forming. The puller socket hole 22 and the holder socket hole 231 are screw holes. The jaw slide 21 is an arc line gradually approaching the center in the opening direction. The sectional areas of the first baffle 321 and the second baffle 322 are larger than the opening area of the jaw slideway 21, and the distance between the first baffle 321 and the second baffle 322 is larger than the thickness of the puller seat 2, so that the jaw arm 32 between the first baffle 321 and the second baffle 322 slides along the jaw slideway 21, and the jaw 3 is detachably hung on the jaw slideway 21. The main body of the ejector rod 1 is a screw rod, and the screw thread on the screw rod enables the puller seat 2 to be rotatably arranged on the main body of the ejector rod 1.

Example two

Based on the puller with the slidable jaw, the first embodiment further comprises the following use steps: the jaw 3 is moved to the innermost side (the position closest to the center of the puller seat 2) on the jaw slideway 21, and is extended into the working area (for example, the inner hole diameter of the lip seal), and then the jaw 3 is moved to the outermost side of the movable distance on the jaw slideway 21 so that the jaw hook 33 can reach the stress point (the bottom outer ring of the lip seal), and the shaft seal can be nondestructively taken out by lifting the mandril 1.

The utility model provides a pair of gripper slidable draws principle of horse: due to the characteristic of lip seal disassembly, the jaw 3 does not need to bear a large load, only needs to be used for force transmission, and preferentially works in a limited space range, the jaw arm 32 is changed into a straight arm type from a traditional arc shape and a design with a large size, and the working space occupied by the jaw 3 is reduced; because the space between the shaft seal and the shaft is small, the inner edge is made of a fragile sealing material, the inner edge cannot be extruded by external force and cannot be used as an acting point, the clamping jaw 3 needs to enter a working area in a limited space and then extends to touch the outer ring frame of the lip seal to be used as the acting point, and therefore the lip seal can be more stably and nondestructively disassembled. To the dismantlement of bearing seal, the jaw slidable draws horse that this application provided only needs to stretch into jaw 3, remove jaw 3 position on jaw slide 21 again, make jaw hook 33 of jaw 3 can touch the stress point of bearing seal, rethread draws horse ejector pin 1's rotation, produce even continuous pulling force, simultaneously because the structural design of first baffle 321 and second baffle 322 on the jaw arm 32, the impetus of jaw 3 has been increased, thereby harmless taking out the bearing seal, avoid the vulnerable part of extrusion collision bearing in limited working space scope, lead to the bearing seal to damage.

The foregoing is merely a preferred embodiment of the present invention and is not intended to limit the scope of the invention, which is to be construed as being limited in any manner by the following claims.

Claims

1. A jaw-slidable puller, comprising:

the clamping jaw comprises at least two clamping jaws, wherein each clamping jaw consists of a clamping jaw handle, a clamping jaw arm and a clamping jaw hook in sequence;

the clamping jaw sliding ways are detachably connected with the clamping jaws in a one-to-one correspondence manner;

and the ejector rod penetrates through the puller seat and can reciprocate along the axis direction of the puller seat.

2. The puller according to claim 1, wherein: the claw arm is close to the claw handle, and a first baffle and a second baffle which are parallel to each other are sequentially arranged at the position of the claw arm, and the claw arm is perpendicular to the first baffle and the second baffle.

3. The puller according to claim 2, wherein: the distance between the first baffle and the second baffle is larger than the thickness of the puller seat, so that the claw arm between the first baffle and the second baffle slides along the claw slideway.

4. The puller according to claim 2, wherein: the sectional areas of the first baffle and the second baffle are larger than the opening area of the clamping jaw slide way, so that the clamping jaw can be detachably hung on the clamping jaw slide way.

5. The puller according to claim 1, wherein: the claw slide way is arc-shaped or linear.

6. The puller according to claim 1, wherein: the puller seat further comprises a supporting seat, a supporting seat hole is formed in the center of the supporting seat, and the aperture and the hole pattern of the supporting seat hole are the same as those of the puller seat hole.

7. The puller according to claim 6, wherein: the supporting seat and the puller seat are coaxially arranged and fixedly connected.

8. The puller according to claim 1, wherein: the jaw arm is straight arm type, the jaw hook is C style of calligraphy.

9. The puller according to claim 1, wherein: the puller seat hole is a threaded hole.

10. The puller according to claim 9, wherein: the ejector rod main body is a screw rod, and the thread on the screw rod enables the puller seat to be rotatably arranged on the ejector rod main body.