Oil seal dismounting device

Abstract

The utility model belongs to the technical field of cigarette equipment maintenance, and particularly relates to an oil seal dismounting device which comprises a cylinder body, the outer wall of the lower end of the cylinder body is in a big-end-up cone shape, and the lower end of the cylinder body is further provided with external threads. The transmission shaft is sleeved with the hollow barrel from the outer side of the oil seal, the conical lower end is inserted into a gap between the transmission shaft and the oil seal, then the barrel is rotated, the lower end of the barrel is driven by the external threads to continue to go deep, connection between the barrel and the oil seal is formed, then the barrel is pulled out, and the oil seal can be driven to be disengaged. The original oil seal does not need to be damaged, parts around the original oil seal are prevented from being damaged, the dismounting effect is good, the oil seal can be rapidly dismounted, and practicability is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of cigarette equipment maintenance, and particularly relates to an oil seal disassembly device. Background Art

[0002] When the spider arm is conveying cigarettes, the transmission box of the mechanism and the transmission shaft of the rotary arm rotate at high speed and rub against the two skeleton oil seals. The internal heat dissipation conditions of the spider arm are poor, and the lip temperature of the skeleton oil seal is high. The oil seal fails due to aging, deformation, and wear, resulting in oil leakage. The leaked oil enters the clean air channel and contaminates the cigarettes. In order to ensure product quality and normal operation of the equipment, the spider arm skeleton oil seal must be replaced regularly.

[0003] However, in actual operation, due to the lack of special disassembly tools when disassembling the spider arm skeleton oil seal, the spider arm skeleton oil seal replacement process is time-consuming and the equipment operation efficiency is low. At present, during maintenance, the method of replacing the spider arm skeleton oil seal is usually to replace it directly on the equipment, that is, using tools such as a flat-head pick and a chisel to destroy the oil seal skeleton, and then use a flat-head pick to disassemble the oil seal.

[0004] Statistical analysis of the maintenance time and maintenance effect of replacing oil seals found that during the maintenance process, the oil seal skeleton was destroyed in a violent manner using traditional tools, and excessive force was often used, resulting in damage to the surface of surrounding parts, which required the working surface of the parts to be repaired and polished, while reducing the oil sealing effect of the oil seal. Although the maintenance time is shortened by replacing the oil seal in this way, the maintenance is unreliable. If the parts are seriously damaged, the spider hand assembly still needs to be dismantled and replaced. Therefore, the maintenance method of using traditional tools to carry out destructive disassembly and replacement of oil seals has the problem of unstable maintenance effect and cannot truly achieve rapid maintenance. Utility Model Content

[0005] The purpose of the utility model is to provide an oil seal disassembly device to solve the problem that the existing spider hand oil seal is difficult to disassemble quickly.

[0006] In order to achieve the above technical objectives, the technical solutions adopted by this utility model are as follows:

[0007] An oil seal disassembly device comprises a cylinder, wherein the outer wall of the lower end of the cylinder is in a cone shape with a larger upper portion and a smaller lower portion, and the lower end of the cylinder is provided with an external thread.

[0008] It is further defined that a handle is radially provided on the outer wall of the cylinder.

[0009] This structural design uses the handle as a lever arm to achieve rotation of the cylinder, which makes operation more labor-saving and more practical.

[0010] It is further defined that a plurality of strip grooves are axially opened at the lower end of the cylinder.

[0011] This structural design destroys the external thread at the lower end of the cylinder through the strip groove, making it easier to screw the external thread onto the oil seal, which is more practical.

[0012] It is further defined that a stud is threadedly connected in the cylinder, and the upper end of the stud is located outside the cylinder.

[0013] Such a structural design, through the setting of the stud, can be used to rotate the stud when pulling out the cylinder so that the stud rests on the end face of the drive shaft where the oil seal is installed. Continuing to rotate the stud can drive the cylinder to move outward relative to the drive shaft, thereby completing the removal of the oil seal. Compared with the method of directly pulling the cylinder to drive the oil seal to disengage, this can ensure that the movement trajectory of the cylinder is consistent with the drive shaft, avoiding the problem of the oil seal falling off the cylinder due to the deflection of the cylinder during the pulling process, and is more practical.

[0014] It is further defined that a cross bar is laterally provided at the upper end of the stud.

[0015] Such a structural design forms a force arm for the stud through the cross bar, making the rotation of the stud more labor-saving, more convenient to use, and more practical.

[0016] It is further defined that the cylinder comprises a straight cylinder and a connecting ring welded to the straight cylinder, and the inner diameter of the straight cylinder is larger than the inner diameter of the connecting ring;

[0017] The stud is screwed onto the connecting ring.

[0018] Such a structural design, by using the connecting ring welded on the straight cylinder as a medium for threaded connection with the stud, can reduce the manufacturing cost of the cylinder and has strong practicality.

[0019] The utility model adopting the above technical solution has the following advantages:

[0020] 1. The hollow cylinder is sleeved on the drive shaft from the outside of the oil seal, and the tapered lower end is inserted into the gap between the drive shaft and the oil seal. The cylinder is then rotated, and the external thread drives the lower end of the cylinder to continue to penetrate, forming a connection between the cylinder and the oil seal. The cylinder is then pulled out to drive the oil seal out without destroying the original oil seal, thereby avoiding damage to parts around the original oil seal. The removal effect is good, and the oil seal can be quickly removed, which is highly practical.

[0021] 2. Through the setting of the stud, when pulling out the cylinder, the stud can be rotated to make the stud rest against the end face of the drive shaft where the oil seal is installed. Continuing to rotate the stud can drive the cylinder to move outward relative to the drive shaft, thereby completing the removal of the oil seal. Compared with the method of directly pulling the cylinder to drive the oil seal to be disengaged, this method can ensure that the movement trajectory of the cylinder is consistent with the drive shaft, avoiding the problem of the oil seal falling off the cylinder due to the deflection of the cylinder during the pulling process, and is more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention can be further described by way of non-limiting examples given in the accompanying drawings;

[0023] Figure 1 This is a structural schematic diagram of an oil seal disassembly device of the utility model;

[0024] The main component symbols are described as follows:

[0025] Cylinder 1, external thread 10, handle 11, strip groove 12,

[0026] Stud 2, cross bar 21. DETAILED DESCRIPTION

[0027] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that similar or identical parts in the drawings or in the specification are numbered the same. Implementations not shown or described in the drawings are forms known to those skilled in the art. In addition, directional terms such as "upper," "lower," "top," "bottom," "left," "right," "front," and "back" mentioned in the embodiments are merely references to the directions in the drawings and are not intended to limit the scope of protection of the present invention.

[0028] like Figure 1 As shown, an oil seal disassembly device of the present invention comprises a cylinder 1 , the outer wall of the lower end of the cylinder 1 is tapered with a larger upper portion and a smaller lower portion, and an external thread 10 is provided at the lower end of the cylinder 1 .

[0029] A handle 11 is radially provided on the outer wall of the cylinder 1 .

[0030] In fact, according to actual conditions, you can also choose to open anti-slip grooves on the outer wall of the cylinder 1 to increase the friction between the cylinder 1 and the palm. This embodiment uses the handle 11 as a force arm to achieve the rotation of the cylinder 1, which is more labor-saving and practical.

[0031] A plurality of strip grooves 12 are axially formed at the lower end of the cylinder 1 .

[0032] The outer thread 10 at the lower end of the cylinder 1 is destroyed by the strip groove 12, so that the outer thread 10 can be more easily screwed onto the oil seal, which is more practical.

[0033] A stud 2 is screwed into the cylinder 1 , and the upper end of the stud 2 is located outside the cylinder 1 .

[0034] Through the provision of the stud 2, when the barrel 1 is pulled out, the stud 2 can be rotated to make the stud 2 rest against the end face of the transmission shaft where the oil seal is installed. Continuing to rotate the stud 2 can drive the barrel 1 to move outward relative to the transmission shaft, thereby completing the removal of the oil seal. Compared with the method of directly pulling the barrel 1 to drive the oil seal to disengage, the movement trajectory of the barrel 1 can be ensured to be consistent with the transmission shaft, thereby avoiding the problem of the oil seal falling off from the barrel 1 due to the deflection of the barrel 1 during the pulling process, and is more practical.

[0035] A cross bar 21 is laterally provided at the upper end of the stud 2 .

[0036] The cross bar 21 forms a force arm for the stud 2, so that the rotation of the stud 2 is more labor-saving, more convenient to use, and more practical.

[0037] The cylinder 1 includes a straight cylinder and a connecting ring welded to the straight cylinder, and the inner diameter of the straight cylinder is larger than the inner diameter of the connecting ring;

[0038] The stud 2 is screwed onto the connecting ring.

[0039] In fact, according to actual conditions, nuts can be directly welded on the straight cylinder to form the cylinder body 1. This embodiment uses the connecting ring welded on the straight cylinder as a medium for threaded connection with the stud 2, which can reduce the manufacturing cost of the cylinder body 1 and has strong practicality.

[0040] In this embodiment, when in use, the stud 2 is first screwed onto the connecting ring of the cylinder 1, and then the cylinder 1 is placed on the transmission shaft. The cylinder 1 is further pushed so that the tapered lower end of the cylinder 1 is inserted into the gap between the transmission shaft and the oil seal, thereby making the external thread 10 contact the inner wall of the oil seal;

[0041] The cylinder 1 is rotated by the handle 11 so that the external thread 10 of the cylinder 1 penetrates into the oil seal. The elasticity of the oil seal and the taper of the lower end of the cylinder 1 make the oil seal screwed onto the external thread 10 of the cylinder 1, thus completing the connection between the oil seal and the cylinder 1.

[0042] The stud 2 is then rotated via the cross bar 21 until the lower end of the stud 2 rests against the end face of the drive shaft where the oil seal is installed. The stud 2 is then rotated further to drive the barrel 1 to move outward relative to the drive shaft, thereby driving the oil seal outward to complete the removal of the oil seal.

[0043] The above describes in detail the oil seal removal device provided by the present invention. The description of the specific embodiments is intended only to facilitate understanding of the method and core concept of the present invention. It should be noted that those skilled in the art may, without departing from the principles of the present invention, make various improvements and modifications to the present invention, and such improvements and modifications fall within the scope of protection of the claims of the present invention.

Claims

1. An oil seal disassembly device, characterized in that: It comprises a cylinder (1), the outer wall of the lower end of the cylinder (1) is in a cone shape with a larger upper portion and a smaller lower portion, and the lower end of the cylinder (1) is also provided with an external thread (10).

2. The oil seal removal device according to claim 1, characterized in that: A handle (11) is radially provided on the outer wall of the cylinder (1).

3. The oil seal removal device according to claim 1, characterized in that: A plurality of strip-shaped grooves (12) are axially provided at the lower end of the cylinder (1).

4. The oil seal removal device according to claim 1, characterized in that: A stud (2) is screwed into the cylinder (1), and the upper end of the stud (2) is located outside the cylinder (1).

5. The oil seal removal device according to claim 4, characterized in that: A crossbar (21) is laterally provided at the upper end of the stud (2).

6. The oil seal removal device according to claim 4, characterized in that: The cylinder (1) comprises a straight cylinder and a connecting ring welded to the straight cylinder, wherein the inner diameter of the straight cylinder is larger than the inner diameter of the connecting ring; The stud (2) is screwed onto the connecting ring.

Images