CN113910160B

CN113910160B - Jack type pin shaft dismantling tool and method for dismantling pin shaft

Info

Publication number: CN113910160B
Application number: CN202111318686.5A
Authority: CN
Inventors: 刀荣贵; 吕小波; 姜永愿; 李万西
Original assignee: Hongta Tobacco Group Co Ltd
Current assignee: Hongta Tobacco Group Co Ltd
Priority date: 2021-11-09
Filing date: 2021-11-09
Publication date: 2023-10-27
Anticipated expiration: 2041-11-09
Also published as: CN113910160A

Abstract

The invention provides a jack type pin shaft dismantling tool and a pin shaft dismantling method. The jack mount pad and supporting baseplate are installed in the top and the bottom of stand respectively, and the jack is installed in the bottom of jack mount pad downwards, and the pin dashes are installed to the chuck of jack. The supporting bottom plate is provided with a through hole, two movable clamping plates are arranged above the supporting bottom plate, and the two movable clamping plates are respectively positioned at two sides of the through hole; one movable clamping plate is arranged on the upright post through a screw rod, the other movable clamping plate is arranged on the supporting bottom plate through a screw rod, the two screw rods are positioned on the same straight line, and the distance between the two movable clamping plates can be adjusted by rotating the screw rods. The method for dismantling the pin shafts by adopting the tool can conveniently and rapidly dismantle the pin shafts with different sizes, avoid damage of the pin shafts, save time and labor and greatly improve the pin dismantling or equipment maintenance efficiency.

Description

Jack type pin shaft dismantling tool and method for dismantling pin shaft

Technical Field

The invention belongs to the field of mechanical part application, and relates to a jack type pin shaft dismantling tool.

Background

The pin shaft is widely used as a very common part of various mechanical equipment and mechanical devices, and can be used for fixing connection, hinging and the like among all parts. Therefore, the pin is often removed for maintenance of the machinery and machinery. The traditional pin disassembling mode generally uses a pin punch and a hammer to punch the pin shaft, and the pin shaft is punched out. This method requires multiple people to assist, uses multiple tools to accomplish, has low maintenance efficiency, and is easily damaged by tapping. For example, when repairing a chain, removing a plurality of smaller chain bearings requires one person to hold the chain, one person to use a pin punch and a hammer to operate, and a pillow to hold the chain in a neutral position, which is time-consuming and laborious. For another example, when maintaining the forklift balance bar, the whole heavy rear axle needs to be disassembled to take out the pin shaft by the traditional method.

Disclosure of Invention

In order to solve the technical problems, the invention aims to provide the jack type pin shaft dismantling tool and the pin shaft dismantling method, and the jack type pin shaft dismantling tool can be used for conveniently and rapidly dismantling pins with different sizes, so that the damage of the pins is avoided, time and labor are saved, and the pin shaft dismantling or equipment maintenance efficiency is greatly improved.

In order to achieve the above purpose, the technical scheme of the invention is as follows: a jack type pin shaft dismantling tool comprises a jack, a jack mounting seat, an upright post and a supporting bottom plate. The jack mount pad and supporting baseplate are installed in the top and the bottom of stand respectively, and the jack is installed in the bottom of jack mount pad downwards, and the chuck of jack is installed and is sold towards, and the offset is used for exerting force to the round pin axle and ejecting the demolishment of round pin axle. The supporting bottom plate is provided with a through hole, the through hole is used for correcting the installation position of the jack, and the pin shaft is punched out by the pin to pass through the through hole. Two movable clamping plates are arranged above the supporting bottom plate and are respectively positioned at two sides of the through hole, and the two movable clamping plates are used for clamping the pin removing object. One movable clamping plate is arranged on the upright post through a screw rod, the other movable clamping plate is arranged on the supporting bottom plate through a screw rod, the two screw rods are positioned on the same straight line, and the distance between the two movable clamping plates can be adjusted by rotating the screw rods, so that a pin dismounting object is clamped.

Preferably, an accommodating groove is formed in one end face of the movable clamping plate, an annular boss is arranged at one end of the screw rod, and the annular boss is installed in the accommodating groove and is clamped by a notch of the accommodating groove. The movable clamping plate is connected with the screw rod through the structure, the end part of the screw rod can rotate in the accommodating groove, and thus, the movable clamping plate can horizontally move by rotating the screw rod.

Preferably, one screw rod penetrates through the upright post to be rotatably connected with one movable clamping plate, and the other screw rod penetrates through a mounting table arranged at the edge of the supporting bottom plate to be rotatably connected with the other movable clamping plate.

Preferably, the outer end of the screw rod is provided with a screw rod handle, the screw rod handle and the screw rod handle are installed through bolts, and the screw rod handle is convenient for manually rotating the screw rod.

Preferably, four waist-shaped holes are formed in the jack mounting seat, bolts are mounted in the waist-shaped holes, and the jack is fixedly connected with the jack mounting seat. The waist-shaped hole is used for correcting the installation position of the adjusting jack.

Preferably, the two side edges of the supporting bottom plate are provided with bottom plate mounting grooves, and the two side edges of the jack mounting seat are provided with mounting seat grooves. When the tool is installed in the forward direction, the supporting bottom plate is fixed on a bench worker installation table through the bottom plate installation groove; when the tool is inversely installed, the jack installing seat is fixed on the bench worker installing table through the installing seat groove.

Preferably, the two sides of the lower part of the upright post are provided with reinforcing ribs, and the reinforcing ribs are welded on the upright post and the supporting bottom plate simultaneously. The reinforcing ribs stabilize the whole tool.

Preferably, the pin punch is positioned above the through hole, so that the pin punch can conveniently eject the pin shaft into the through hole to penetrate out of the through hole, and the dismounting of the pin shaft is realized.

The invention also provides a method for dismantling the pin shaft, which adopts the jack type pin shaft dismantling tool and comprises the following steps:

a. the supporting bottom plate is fixed on the bench worker installation table through the bottom plate installation groove;

b. installing the pan head at the bottom of the pin punch, loosening four bolts on a jack installation seat, and shaking a jack handle to enable the jack to be pressed down until the pan head is just placed in a through hole on a supporting bottom plate;

c. four bolts on the jack mounting seat are screwed, and the jack handle is rocked to enable the jack to move upwards to be far away from the through hole;

d. removing the pan head, placing a pin removing object between two movable clamping plates on the supporting bottom plate, placing a pin shaft to be removed at the position above the through hole, rocking a jack handle to enable the jack to be pressed down, and rotating two screw rod handles in a matching manner until the pin punches are aligned and contact with the pin shaft to be removed;

e. continuously rotating the two screw rod handles in a matched manner to enable the two movable clamping plates to clamp the pin dismounting object;

f. and continuing to shake the jack handle to enable the jack to push down and eject the pin shaft to be removed.

The invention has the beneficial effects that: the invention has the advantages of saving maintenance personnel, saving tools and labor and improving maintenance efficiency. The jack type pin shaft dismantling tool has only one tool and a plurality of matched pin punches, only one person is required to operate, and other clamping devices, tools such as hammers and the like are not required to be equipped; the jack is used in the tool, so that the labor-saving effect is achieved; the tool has various use modes, can be used for rapidly dismantling pins with different sizes, and greatly improves the maintenance efficiency.

Drawings

FIG. 1 is a schematic view of the structure of the jack-type pin removal tool of the present invention;

FIG. 2 is a full sectional view of the movable clamp plate and screw assembly of the present invention;

FIG. 3 is a schematic diagram of a jack position calibration in the pin removal method of the present invention;

FIG. 4 is a schematic view of a first embodiment of the present invention in practical application;

FIG. 5 is a schematic diagram of a second embodiment of the present invention in practical application;

FIG. 6 is a schematic diagram of a third embodiment of the present invention in practical application;

fig. 7 is a schematic diagram of a fourth embodiment of the present invention in practical application.

Description of main reference numerals:

1 jack

11 jack handle

12 clamping head

13 pin punch

14 pan head

2 jack mount pad

21 kidney-shaped hole

22 bolt

23 mounting seat groove

3 stand column

31 reinforcing rib

4 supporting bottom plate

41 through holes

42 mounting table

43 floor mounting groove

5 movable clamping plate

51 accommodation groove

6 screw rod

61 annular boss

62 screw handle

7 pin roll

8 tear round pin object open

Detailed Description

The technical solutions in the embodiments of the jack-type pin removal tool and the method for removing the pin provided by the invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the invention. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be understood that the terms "center," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present invention.

As shown in fig. 1, the invention provides a jack type pin shaft dismantling tool, which comprises a jack 1, a jack mounting seat 2, a stand column 3 and a supporting bottom plate 4, wherein the jack mounting seat 2 and the supporting bottom plate 4 are respectively arranged at the top and the bottom of the stand column 3.

The jack mount pad 2 is rectangular plate-shaped structure, is equipped with four waist type holes 21 on it, installs bolt 22 in the waist type hole 21, installs jack 1 in the bottom of jack mount pad 2 downwards, installs the round pin towards 13 in the chuck 12 bottom of jack, and when demolish the round pin axle, the round pin towards 13 is used for to the round pin axle application of force to ejecting the round pin axle. The jack mount pad 2 is also provided with mount pad grooves 23, and two mount pad grooves 23 are arranged and positioned at the edges of two sides of the jack mount pad 2. When the jack pin removal tool needs to be installed upside down, the jack mounting seat 2 can be fixed on a bench worker mounting table through the mounting seat groove 23.

The stand 3 is the cuboid structure, and its top welds in the bottom one side of jack mount pad 2, and the bottom of stand 3 welds in the top one side of supporting baseplate 4. In practical application, the upright 3 may also be configured as a cylindrical structure, and the upright 3 and the jack mount 2, and the upright 3 and the support base 4 may also be fixed by screws, which is not limited herein. The reinforcing ribs 31 are arranged on two sides of the lower portion of the upright post 3, the cross section of each reinforcing rib 31 is in a right triangle shape, and the reinforcing ribs are welded on the upright post 3 and the supporting bottom plate 4 at the same time to stabilize the whole tool.

The supporting base plate 4 has a rectangular plate-like structure, and is provided with a through hole 41, and the through hole 41 is positioned below the pin punch 13. The edge of the support base plate 4 (the side opposite to the upright 3) is provided with a mount table 42, and the center of the mount table 42 is provided with a screw hole. The supporting bottom plate 4 is also provided with bottom plate mounting grooves 43, and the bottom plate mounting grooves 43 are two and are positioned at the edges of the two sides of the supporting bottom plate 4. The support base plate 4 may be secured to the bench work mount table by the base plate mounting slot 43.

Two movable clamping plates 5 are arranged above the supporting bottom plate 4, and the two movable clamping plates 5 are respectively positioned at two sides of the through hole 41. One movable clamping plate 5 is arranged on the upright post 3 through a screw rod 6, a threaded hole is formed in the lower part of the upright post 3, and the screw rod 6 penetrates through the threaded hole to be connected with the corresponding movable clamping plate 5; the other movable clamping plate 5 is arranged on the mounting table 42 through a screw rod 6, and the screw rod 6 passes through a threaded hole in the center of the mounting table 42 and is connected with the corresponding movable clamping plate 5. The two screw rods 6 are positioned on the same straight line, and the distance between the two movable clamping plates 5 can be adjusted by rotating the screw rods 6, so that a pin dismounting object is clamped.

As shown in fig. 2, a receiving groove 51 is provided on one end surface of the movable clamping plate 5, and the cross section of the receiving groove 51 is of a "convex" structure. One end of the screw rod 6 is provided with an annular boss 61, and the annular boss 61 is installed in the accommodating groove 51 and is clamped by a notch of the accommodating groove 51. This structure connects the movable clamp plate 5 and the screw 6 together, and the end of the screw 6 can rotate in the accommodating groove 51, so that rotating the screw 6 can horizontally move the movable clamp plate 5. The other end of the screw rod 6 is provided with a screw rod handle 62, the screw rod 6 is connected with the screw rod handle 62 through a bolt, and the screw rod handle 62 is convenient for manually rotating the screw rod 6.

The invention also provides a method for disassembling the pin shaft, which adopts the jack type pin shaft disassembling tool and comprises the following steps:

d. removing the pan head, placing the pin removing object on the supporting bottom plate at the position above the through hole, and shaking the jack handle to enable the jack to be pressed down until the pin punch is aligned and contacted with the pin shaft to be removed;

e. the two screw rod handles are matched to rotate, so that the two movable clamping plates clamp the pin dismounting object;

The method for disassembling the pin shaft is adopted for disassembling the pin shaft of different pin disassembling objects, and is described in detail below with reference to the accompanying drawings:

as shown in fig. 3, in the calibration step, the pan head 14 is mounted on the bottom of the pin punch 13, the four bolts 22 on the jack mount 2 are loosened, and the jack handle 11 is swung to press down the jack 1 until the pan head 14 is just placed in the through hole 41 on the support base plate 4. Since the pan head 14 and the through hole 41 are concentric, the mounting positions of the jack 1 and the pin punch 13 can be calibrated when the pan head 14 is just placed in the through hole 41. At this time, four bolts 22 are tightened to fix the jack 1. The jack handle 11 is swung to move the jack 1 up away from the through hole 41, the pan head 14 is removed, and the position calibration is completed.

As shown in fig. 4, the pin shaft 7 is shorter and the pin removing object 8 is narrower, the supporting base plate 4 is fixed on the bench worker mounting table through the base plate mounting groove 43, after the position calibration work is completed, the pin removing object 8 is placed between the two movable clamping plates 5, and the pin shaft 7 to be removed is placed above the through hole 41. The jack handle 11 is swung to press down the jack 1 and the two screw handles 62 are rotated in unison until the pin punches 13 are aligned and in contact with the pins 7 to be removed. Continuing to rotate the two screw rod handles 62 in a matched manner, so that the two movable clamping plates 5 clamp the pin removing object 8; continuing to shake the jack handle 11 causes the jack 1 to push down the pin shaft 7 to be removed.

As shown in fig. 5, the pin shaft 7 is shorter and the pin removing object 8 is wider, the supporting base plate 4 is fixed on the bench worker mounting table through the base plate mounting groove 43, after the position calibration work is completed, the pin removing object 8 is placed on the tops of the two movable clamping plates 5, the pin removing object 8 is in neutral gear, and the pin shaft 7 to be removed is placed above the through hole 41. The jack handle 11 is swung to press down the jack 1 and the two screw handles 62 are rotated in unison until the pin punches 13 are aligned and in contact with the pins 7 to be removed. Continuing to shake the jack handle 11 causes the jack 1 to push down the pin shaft 7 to be removed.

As shown in fig. 6, the pin shaft 7 is longer and the pin removing object 8 is narrower, the tool is turned upside down, the jack mount 2 is fixed on the bench worker mount table through the mount seat groove 23, after the position calibration work is completed, the pin removing object 8 is placed between the two movable clamping plates 5, and the pin shaft 7 to be removed is placed below the through hole 41. The jack handle 11 is swung up to move the jack 1 up and the two screw handles 62 are co-ordinated until the pin punches 13 are aligned and in contact with the pins 7 to be removed. Continuing to rotate the two screw rod handles 62 in a matched manner, so that the two movable clamping plates 5 clamp the pin removing object 8; continued rocking of the jack handle 11 causes the jack 1 to move upwardly out of the pin 7 to be removed.

As shown in fig. 7, the pin shaft 7 is longer and the pin removing object 8 is heavier, the tool is turned upside down or placed horizontally, and the pin shaft on the pin removing object is removed by the method described in fig. 6, which is not described herein.

It should be noted that: the above description is only of the preferred embodiments of the present invention and should not be construed as limiting the scope of the invention at a time. Any modification, equivalent replacement, improvement, etc. which are within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a jack type pin shaft dismantling tool, which is characterized in that the tool comprises a jack, a jack mounting seat, an upright post and a supporting bottom plate, wherein the jack mounting seat and the supporting bottom plate are respectively arranged at the top and the bottom of the upright post, the jack is downwards arranged at the bottom of the jack mounting seat, a pin punch is arranged on a chuck of the jack,

the support bottom plate is provided with a through hole, two movable clamping plates are arranged above the support bottom plate, and the two movable clamping plates are respectively positioned at two sides of the through hole; one movable clamping plate is arranged on the upright post through a screw rod, the other movable clamping plate is arranged on the supporting bottom plate through a screw rod, the two screw rods are positioned on the same straight line, the distance between the two movable clamping plates can be adjusted by rotating the screw rods,

one end face of the movable clamping plate is provided with a containing groove, one end of the screw rod is provided with an annular boss which is arranged in the containing groove and is clamped by a notch of the containing groove,

four waist-shaped holes are formed in the jack mounting seat, bolts are arranged in the waist-shaped holes, and the jack is fixedly connected with the jack mounting seat.

2. The jack pin removal tool of claim 1, wherein one of said lead screws is rotatably connected to one of said movable jaws through said post and the other of said lead screws is rotatably connected to the other of said movable jaws through a mounting block provided at an edge of said support base.

3. The jack pin removal tool of claim 1, wherein the outer end of the screw is provided with a screw handle, both of which are mounted by bolts.

4. The jack-type pin removal tool of claim 1, wherein the support base has base plate mounting slots on both side edges and the jack mounting base has mounting base slots on both side edges.

5. The jack-type pin removal tool of claim 1, wherein the lower portion of the column is provided with reinforcing ribs on both sides, the reinforcing ribs being welded to both the column and the support base.

6. A jack pin removal tool as set forth in claim 1 wherein said pin punch is located above said through hole.

7. A method of removing pins, characterized in that the following steps are performed using a jack-type pin removal tool according to any one of claims 1 to 6: