CN215881479U

CN215881479U - Combined multipurpose hydraulic silent pin puller

Info

Publication number: CN215881479U
Application number: CN202120642814.0U
Authority: CN
Inventors: 张晓军
Original assignee: Baotou Iron and Steel Group Co Ltd
Current assignee: Baotou Iron and Steel Group Co Ltd
Priority date: 2021-03-30
Filing date: 2021-03-30
Publication date: 2022-02-22
Anticipated expiration: 2031-03-30

Abstract

The utility model discloses a combined type multipurpose hydraulic mute pin puller, which comprises a pulling shaft, a pulling claw, a locking bolt, a fixed sleeve and a pressing plate, wherein the pulling shaft is fixed on the fixed sleeve; the combined type multipurpose hydraulic mute pin puller does not need to be struck by large force, has no noise and vibration, works stably, avoids scratching or bruising equipment, and ensures the overhauling quality; the labor intensity is greatly reduced, and the working efficiency is improved; the universality is good.

Description

Combined multipurpose hydraulic silent pin puller

Technical Field

The utility model relates to the technical field of machinery, in particular to a combined type multipurpose hydraulic silent pin puller.

Background

In mechanical equipment overhauls, the pin puller that uses at present is mostly striking formula pin puller, is fixed with striking piece on it, and the tip can with the member of the screw threaded connection on the pin pulling shaft terminal surface. During the use, it is fixed with screw threaded connection on member tip and the shop bolt terminal surface, outwards strike the striking piece, utilize the outside impact of striking piece to extract the shop bolt, the required impact of this dismantlement mode is great, used power is artifical direct power of giving, and need have certain striking space, through striking many times, just can extract the shop bolt, often can meet the time and energy waste that dismantlement pin process exists, it is difficult to dismantle, have great impact force, the space is not enough scheduling problem, and can produce the noise at the in-process of hitting, the production job site has noise pollution. Vibration can be generated in the striking process, and the precision of a machine, particularly an ultra-precise part, is influenced; the striking vibration easily causes the surface of the machine part to contact other objects to generate bruise and scratch, and the surface quality of the equipment is influenced; the risk that the striking vibration causes the screw to break and remain in the pin hole influences the pulling-out of the pin. In addition, in the actual operation process, the situation that some pins are locked with pin holes due to long-term corrosion and other reasons is often encountered, and the pulling force of the general pin puller is insufficient, so that the pins cannot be pulled out.

And the above-mentioned dismantlement mode can only be to the top band hole formula pin, and the mode that uses for the screw cap or mushroom head type pin to dismantling the top is that screw driver or crow bar sled are unable to dismantle, because there is not specialized tool to lead to the operation difficulty, and because the specification of pin is many in addition, and the pulling head of current pin puller only is applicable to the pin of a specification usually, this just makes different pins need adopt the pin puller of corresponding specification to dismantle. Therefore, the existing pin puller is poor in universality.

Therefore, the technical personnel in the field are dedicated to develop a combined type multipurpose hydraulic silent pin puller, and the combined type multipurpose hydraulic silent pin puller aims to solve the problem of defects of the existing pin puller in the using process.

SUMMERY OF THE UTILITY MODEL

In view of the above defects in the prior art, the technical problems to be solved by the utility model are that the existing pin puller has the defects of large impact force, high noise, vibration generated in the striking process, influence on the precision of machines, particularly ultra-precise parts, scratching and bruising equipment, insufficient pulling force of the pin puller, incapability of pulling out pins and poor universality in the use process.

In order to achieve the purpose, the utility model provides a combined type multipurpose hydraulic mute pin puller, which comprises a pulling shaft, a pulling claw, a locking bolt and a fixed sleeve; the drawing shaft is U-shaped, the left side and the right side of the drawing shaft are vertical shafts with threads, the lower end of the drawing shaft is a transverse shaft, and the U-shaped opening end comprises a nut and a pressing plate which are matched with the vertical shafts; the vertical shafts at the two ends of the pressing plate corresponding to the drawing shaft comprise two plate holes; the pulling claw is 2 opposite L-shaped, the vertical edge comprises 2 through holes, the locking bolt transversely penetrates through the through hole at the lower part of the pulling claw, and nuts are matched at two ends of the outer side of the pulling claw; a transverse shaft of the drawing shaft transversely penetrates through a through hole in the upper part of the drawing claw; one end of the fixed sleeve is open, the other end of the fixed sleeve is closed, the closed end comprises two sleeve holes, and the distance between the sleeve holes is the distance between the two vertical shafts of the drawing shaft; two vertical shafts of the drawing shaft penetrate out of the cylinder hole at the closed end of the fixed sleeve and are matched with nuts;

in a preferred embodiment of the utility model, the distance between the two vertical shafts of the drawing shaft is smaller than the inner diameter of the fixed sleeve;

by adopting the scheme, the combined type multipurpose hydraulic silent pin puller disclosed by the utility model has the following technical effects:

1. according to the combined type multipurpose hydraulic mute pin puller, the fixed sleeve is sleeved outside the puller, the hydraulic jack is placed between the pressing plate and the sleeve, the pulling shaft drives the pulling claw to be lifted upwards through the upward force of the hydraulic pressure in the pulling process, so that the pin is pulled out, strong striking is not needed, the noise is low, the equipment is prevented from being scratched or bruised, and the overhauling quality is ensured; the labor intensity is greatly reduced, and the working efficiency is improved;

2. the combined type multipurpose hydraulic mute pin puller is convenient to use in equipment maintenance work, is suitable for pins of various forms and models by adjusting the distance between the two claws, has good universality and good popularization value, and is widely applied in the fields of mechanical equipment and building installation;

in conclusion, the combined type multipurpose hydraulic mute pin puller disclosed by the utility model does not need to be struck by large force, has no noise and vibration, works stably, avoids scratching or damaging equipment and ensures the overhauling quality; the labor intensity is greatly reduced, and the working efficiency is improved; the universality is good.

The conception, specific structure, and technical effects of the present invention will be further described in conjunction with the accompanying drawings and specific embodiments, so that the objects, features, and effects of the present invention can be fully understood.

Drawings

FIG. 1 is a schematic front view of the structure of the combined multi-purpose hydraulic silent pin remover of the present invention;

FIG. 2 is a schematic drawing shaft structure of the combined multi-purpose hydraulic silent pin remover of the present invention;

FIG. 3 is a schematic view of the combination of the pawl and the locking bolt of the combined multi-purpose hydraulic silent pin puller of the present invention;

FIG. 4 is a schematic view of the combination of the pulling shaft, the pulling claw and the locking bolt of the combined multi-purpose hydraulic silent pin puller of the utility model;

FIG. 5 is a schematic view of the combination of the pulling shaft, the pulling claw, the locking bolt and the fixing sleeve of the combined multi-purpose hydraulic silent pin puller of the utility model;

FIG. 6 is a schematic view of the combined multi-purpose hydraulic silent pin remover according to the present invention;

in the figure, 1, a drawing shaft; 2. claw pulling; 3. locking the bolt; 4. fixing the sleeve; 5. a thread; 6. a nut; 7. a through hole; 8. a cylinder bore; 9. a pin; 10. a hydraulic jack; 11. and (7) pressing a plate.

Detailed Description

The embodiments of the present invention will be described below with reference to the accompanying drawings for making the technical contents thereof clearer and easier to understand. The present invention may be embodied in many different forms of embodiments and the scope of the utility model is not limited to the embodiments set forth herein.

In the drawings, structurally identical elements are represented by like reference numerals, and structurally or functionally similar elements are represented by like reference numerals throughout the several views. The size and thickness of each component shown in the drawings are arbitrarily illustrated, and the present invention is not limited to the size and thickness of each component. The thickness of the components may be exaggerated where appropriate in the figures to improve clarity.

As shown in fig. 1 to 5, the combined type multipurpose hydraulic silent pin puller comprises a pulling shaft 1, a pulling claw 2, a locking bolt 3 and a fixed sleeve 4; the drawing shaft 1 is U-shaped, the left side and the right side of the drawing shaft are vertical shafts with threads 5, the lower end of the drawing shaft is a transverse shaft, and the opening end of the U-shaped drawing shaft comprises a nut 6 and a pressing plate 11 which are matched with the vertical shafts; two ends of the pressing plate 11 corresponding to the vertical shaft of the drawing shaft 1 comprise two plate holes; the pulling claw 2 is 2 opposite L-shaped, the vertical edge comprises 2 through holes 7, the locking bolt transversely 3 penetrates through the through hole 7 at the lower part of the pulling claw 2, and nuts 6 are matched at two ends of the outer side of the pulling claw 2; the transverse shaft of the drawing shaft 1 transversely penetrates through a through hole 7 at the upper part of the drawing claw 2; one end of the fixed sleeve 4 is open, the other end is closed, the closed end comprises two cylinder holes 8, and the distance between the cylinder holes 8 is the distance between two vertical shafts of the drawing shaft 1; two vertical shafts of the drawing shaft 1 penetrate out of a cylinder hole 8 at the closed end of the fixed sleeve 4 and are matched with a nut 6;

as shown in figure 6 of the drawings,

the combined installation and use process comprises the steps of firstly combining the pulling claws and the locking bolts together as shown in figure 3, then installing the pulling shaft in the upper through holes of the pulling claws, adjusting the distance between the two pulling claws in figure 3 to enable the pulling claws to tightly clamp nuts or mushroom heads at the tops of pins, then locking the locking bolts, enabling the cylinder holes of the fixing sleeves to penetrate through the two vertical shafts of the pulling shaft to be sleeved outside the two pulling claws, then placing the pressing plates in, finally placing hydraulic jacks between the pressing plates and the sleeves, and enabling the pulling force to be released through the jacks to realize the pulling. If the pin with the hole at the top is met, only a bolt matched with the thread of the hole needs to be found and screwed in, and then the pin puller is clamped on the bolt to realize pin pulling.

Through practical use, the combined pin puller can grab and detach the pin in a time-saving and labor-saving manner, and if a large pin needs to be detached, the size of each part of the pin puller is increased according to the practical situation, so that the working efficiency is greatly improved.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims

1. A combined type multipurpose hydraulic mute pin puller is characterized by comprising a pulling shaft (1), a pulling claw (2), a locking bolt (3) and a fixed sleeve (4); the drawing shaft (1) is U-shaped, the left side and the right side of the drawing shaft are vertical shafts with threads (5), the lower end of the drawing shaft is a transverse shaft, and the U-shaped opening end comprises a nut (6) and a pressing plate (11) which are matched with the vertical shafts; the vertical shafts at the two ends of the pressing plate (11) corresponding to the drawing shaft (1) comprise two plate holes; the pulling claw (2) is in 2 opposite L shapes, the vertical edge of the pulling claw comprises 2 through holes (7), the locking bolt (3) transversely penetrates through the through hole (7) at the lower part of the pulling claw (2), and nuts (6) are matched with the two ends of the outer side of the pulling claw (2); the transverse shaft of the drawing shaft (1) transversely penetrates through a through hole (7) at the upper part of the drawing claw (2); one end of the fixed sleeve (4) is open, the other end of the fixed sleeve is closed, the closed end comprises two cylinder holes (8), and the distance between the cylinder holes (8) is the distance between two vertical shafts of the drawing shaft (1); two vertical shafts of the drawing shaft (1) penetrate out of a cylinder hole (8) at the closed end of the fixed sleeve (4) and are matched with a nut (6).

2. The multi-purpose hydraulic combined silent pin extractor as claimed in claim 1,

the length of the transverse shaft of the drawing shaft (1) is smaller than the inner diameter of the fixed sleeve (4).