CN215148710U

CN215148710U - Gear disassembling puller

Info

Publication number: CN215148710U
Application number: CN202121434994.XU
Authority: CN
Inventors: 刘吉宝; 崔焕勇; 李发家; 张少运; 吴伟; 范启龙
Original assignee: Shandong Menwo Transmission Co ltd; University of Jinan
Current assignee: Shandong Menwo Transmission Co ltd; University of Jinan
Priority date: 2021-06-25
Filing date: 2021-06-25
Publication date: 2021-12-14
Anticipated expiration: 2031-06-25

Abstract

The utility model relates to the technical field of mechanical maintenance tools, in particular to a gear disassembling puller, which comprises a pull claw seat, a mandril, a claw arm, a connecting arm, a swing rod, a connecting rod, a slide rod, a pawl spring and a handle; two ends of the connecting arm are respectively hinged with the claw arm and the pull claw seat; the ejector rod is slidably sleeved in the pull claw seat, and a ratchet is arranged on the ejector rod; the middle part of the swing rod is pivoted to the pull claw seat, two connecting rods and two sliding rods are arranged, the sliding rods are vertically and slidably mounted on the pull claw seat, two ends of each connecting rod are respectively pivoted with the swing rod and the corresponding sliding rod, and the handle is connected with the swing rod; the pawl is pivoted on the sliding rod, and the pawl spring is installed on the sliding rod and used for keeping the pawl in contact with the ratchet. The utility model discloses a gear is dismantled and is drawn horse at the during operation, because the swing axis perpendicular to ejector pin axis of pendulum rod to pull the handle at certain angle within range reciprocal and can make the ejector pin move down for drawing the claw seat, consequently be applicable to and operate in narrow and small space.

Description

Gear disassembling puller

Technical Field

The utility model relates to a mechanical maintenance tool technical field specifically is a gear is dismantled and is drawn horse.

Background

The puller is a common tool in mechanical maintenance and is generally applied to disassembly work of gears on different occasions. Fig. 1 shows a conventional threaded screw-type puller, which comprises a puller seat 1, a mandril 2, a claw arm 3 and a connecting arm 4, wherein the mandril 2 is installed in the puller seat 1 in a threaded manner, and two ends of the connecting arm 4 are respectively hinged with the claw arm 3 and the puller seat 1. When the gear puller is used, the top of the ejector rod 2 is positioned in the top hole of the shaft end, the position of the claw arm 3 is adjusted, the claw arm 3 hooks the outer ring of the gear, the ejector rod 2 is screwed through the wrench 14, the ejector rod 2 is driven to move axially relative to the claw pulling seat 1, and the gear moves axially along with the ejector rod and finally is separated from the shaft. Such threaded pullers are not suitable for operating in tight spaces due to the need to continuously turn the wrench 14. In addition, after the use, the ejector rod needs to be reset, and the threaded puller needs to reversely screw the ejector rod 2, so that the ejector rod 2 is reset slowly.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the deficiencies of the prior art, provide a gear dismantlement draws horse, pull the handle in certain angle within range is reciprocal and can make the ejector pin move down for drawing the claw seat to adapt to the operation in the narrow and small space.

The technical problem to be solved is realized by adopting the following technical scheme: a gear disassembling puller comprises a pull claw seat, a push rod, a claw arm, a connecting arm, a swing rod, a connecting rod, a slide rod, a pawl spring and a handle; two ends of the connecting arm are respectively hinged with the claw arm and the pull claw seat; the ejector rod is slidably sleeved in the pull claw seat, and a ratchet is arranged on the ejector rod; the middle part of the swing rod is pivoted to the pull claw seat, two connecting rods and two sliding rods are arranged, the sliding rods are vertically and slidably mounted on the pull claw seat, two ends of each connecting rod are respectively pivoted with the swing rod and the corresponding sliding rod, and the handle is connected with the swing rod; the pawl is pivoted on the sliding rod, and the pawl spring is installed on the sliding rod and used for keeping the pawl in contact with the ratchet.

Compared with the prior art, the utility model discloses a gear is dismantled and is drawn horse's beneficial effect does: (1) when the gear rack is used, the ejector rod is abutted against the shaft end, the position of the claw arm is adjusted, the claw arm hooks the outer ring of the gear, then the handle is pulled in a reciprocating mode, the swing rod swings, and the swing rod drives the slide rod to move up and down through the connecting rod. When the swing rod swings anticlockwise, the left side sliding rod moves downwards and the right side sliding rod moves upwards, the left side pawl pushes the ejector rod to move downwards through the ratchet, and the right side pawl slides through the tooth back of the ratchet; similarly, when the swing rod swings clockwise, the pawl on the right side pushes the ejector rod to move downwards through the ratchet. During use, the pawl spring keeps the pawl in contact with the ratchet and can prevent the ejector rod from backing up. It can be seen that, the utility model discloses a gear is dismantled and is drawn the horse at the during operation, because the swing axis perpendicular to ejector pin axis of pendulum rod to pull the handle at certain angle within range reciprocal and can make the ejector pin move down for drawing the claw seat, consequently be applicable to and operate in narrow and small space. In addition, the reciprocating wrenching of the handle can make the ejector rod move downwards relative to the pull claw seat, and the efficiency is high. (2) The ejector rod can be quickly reset only by pressing the two pawls to unlock the ejector rod, so that the resetting speed of the ejector rod is improved.

The technical proposal of the utility model is also that: the claw arms are provided with three claw arms which are uniformly distributed along the same circumference.

The technical proposal of the utility model is also that: the two ends of the claw arm are respectively provided with a first claw hook and a second claw hook, and the distance between the pin joint point of the claw arm and the connecting arm is not equal to that between the first claw hook and the second claw hook. By adopting the technical scheme, the first claw hook and the second claw hook are respectively suitable for different working conditions.

Drawings

Fig. 1 is a perspective view of a conventional screw type puller.

Fig. 2 is a perspective view of the gear removing puller according to the first embodiment.

FIG. 3 is a sectional view of the gear removing puller according to the first embodiment.

Fig. 4 is a partially enlarged view of a portion a in fig. 3.

In the figure: 1. the device comprises a pull claw seat, 2, a push rod, 3, a claw arm, 4, a connecting arm, 5, a swing rod, 6, a connecting rod, 7, a sliding rod, 8, a pawl, 9, a pawl spring, 10, a handle, 11, a ratchet, 12, a first claw hook, 13, a second claw hook, 14 and a wrench.

Detailed Description

The following examples are further illustrative of the present invention, but the present invention is not limited thereto. Because of the utility model discloses it is more complicated, therefore embodiment is only right the utility model discloses a point part carries out the detail, the utility model discloses the part of not detail all can adopt prior art.

The first embodiment is as follows:

fig. 2-4 show embodiment one of the present invention.

A gear disassembly puller comprises a pull claw seat 1, an ejector rod 2, a claw arm 3, a connecting arm 4, a swing rod 5, a connecting rod 6, a sliding rod 7, a pawl 8, a pawl spring 9 and a handle 10.

The two ends of the connecting arm 4 are respectively hinged with the claw arms 3 and the claw pulling seats 1, and the claw arms 3 are three and are uniformly distributed along the same circumference.

The two ends of the claw arm 3 are respectively provided with a first claw hook 12 and a second claw hook 13, and the distance between the pivot point of the claw arm 3 and the connecting arm 4 and the first claw hook 12 is larger than the distance between the pivot point and the second claw hook 13.

The ejector rod 2 is slidably sleeved in the pull claw seat 1, and the ejector rod 2 is provided with a ratchet 11. The middle part of the swing rod 5 is pivoted to the pull claw seat 1, two connecting rods 6 and two sliding rods 7 are arranged, the sliding rods 7 are vertically and slidably mounted on the pull claw seat 1, two ends of each connecting rod 6 are respectively pivoted with the swing rod 5 and the corresponding sliding rod 7, and the handle 10 is connected with the swing rod 5; the pawl 8 is pivoted to the slide rod 7 and the pawl spring 9 is mounted on the slide rod 7 and serves to keep the pawl 8 in contact with the ratchet teeth 11. The pull claw seat 1, the swing rod 5, the connecting rod 6 and the sliding rod 7 form a crank-slider mechanism, and the swing rod 5 can drive the sliding rod 7 to vertically move through the connecting rod 6.

When the gear is used, the ejector rod 2 is abutted against the shaft end, the position of the claw arm 3 is adjusted, the claw arm 3 hooks the outer ring of the gear, then the handle 10 is pulled in a reciprocating mode, the swing rod 5 swings, and the swing rod 5 drives the slide rod 7 to move up and down through the connecting rod 6. When the swing rod 5 swings anticlockwise, the left side sliding rod moves downwards and the right side sliding rod moves upwards, the left side pawl pushes the ejector rod to move downwards through the ratchet, and the right side pawl slides through the tooth back of the ratchet; similarly, when the swing rod 5 swings clockwise, the pawl on the right side pushes the ejector rod to move downwards through the ratchet. During use, the pawl spring 9 keeps the pawl 8 in contact with the ratchet 11, preventing the carrier rod 2 from backing up. It can be seen that, when the gear disassembling puller of the embodiment works, the swing axis of the swing rod 5 is perpendicular to the axis of the mandril 2, and the mandril 2 can move downwards relative to the claw seat 1 by pulling the handle 10 to and fro within 40 degrees, so that the gear disassembling puller is suitable for operation in a narrow space. In addition, the handle 10 is pulled to reciprocate, so that the mandril 2 can move downwards relative to the pull claw seat, and the efficiency is high.

After the use, only two pawls 8 are needed to be pressed to unlock the ejector rod 2, so that the ejector rod 2 can be quickly reset, and the resetting speed of the ejector rod 2 is improved.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. The utility model provides a gear is dismantled and is drawn horse, includes and draws claw seat (1), ejector pin (2), claw arm (3) and linking arm (4), the both ends of linking arm (4) are articulated its characterized in that with claw arm (3) and drawing claw seat (1) respectively: the device also comprises a swing rod (5), a connecting rod (6), a sliding rod (7), a pawl (8), a pawl spring (9) and a handle (10); the ejector rod (2) is slidably sleeved in the pull claw seat (1), and the ejector rod (2) is provided with a ratchet (11); the middle of the swing rod (5) is pivoted to the pull claw seat (1), two connecting rods (6) and two sliding rods (7) are arranged, the sliding rods (7) are vertically and slidably mounted on the pull claw seat (1), two ends of each connecting rod (6) are respectively pivoted with the swing rod (5) and the corresponding sliding rod (7), and the handle (10) is connected with the swing rod (5); the pawl (8) is pivoted on the sliding rod (7), and the pawl spring (9) is installed on the sliding rod (7) and used for keeping the pawl (8) in contact with the ratchet (11).

2. The gear disassembly puller of claim 1, wherein: the three claw arms (3) are uniformly distributed along the same circumference.

3. The gear wheel demounting puller according to claim 1 or 2, wherein: the two ends of the claw arm (3) are respectively provided with a first claw hook (12) and a second claw hook (13), and the pivoting points of the claw arm (3) and the connecting arm (4) are unequal to the first claw hook (12) and the second claw hook (13).