An engine oil seal on-line press fitting device

Abstract

The application provides an engine oil seal on-line press-fitting device and relates to the technical field of oil seal press-fitting.The engine oil seal on-line press-fitting device comprises a connecting assembly and a press-fitting assembly, a base, connecting bolts, elastic pieces, an oil seal press head, an inner ring positioning head, an outer sleeve and a buffer are arranged, the device can solve the problem that the positioning of the outer ring of the oil seal, that is, the outer diameter, is not accurate enough in traditional oil seal press-fitting, and the oil seal press-fitting is prone to deformation and cutting, and the actual use is prone to oil leakage, the base and the connecting bolts are used to mount the device on a hydraulic on-line press-fitting tool, the oil seal is sleeved on the inner ring positioning head, the inner ring positioning head and the engine crankshaft are aligned and positioned, then the base is extruded, the inner ring positioning head extrudes the elastic pieces, and the oil seal press head pushes the inner ring of the oil seal and press-fits the inner ring into place, so that the positioning is accurate, and the oil seal press-fitting is complete, and the oil seal is prevented from being damaged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of oil seal press-fitting, in particular to an engine oil seal online press-fitting device. BACKGROUND

[0002] An engine is a machine that converts other forms of energy into mechanical energy, including internal combustion engines, external combustion engines, jet engines, electric motors, etc. Internal combustion engines usually convert chemical energy into mechanical energy. An engine can refer to both a power generation device and the entire machine including the power device. An engine is composed of many different parts, one of which is the engine oil seal, which is a small annular structure. During installation of the structure, an engine oil seal online press-fitting device is needed.

[0003] Currently, when press-fitting the crankshaft of an engine, a press-fitting tool is usually needed. Traditional oil seal press-fitting only positions the outer ring, i.e., the outer diameter, of the oil seal. However, this positioning is not accurate enough and can easily cause deformation and cutting of the press-fitted oil seal, leading to oil leakage during actual use. SUMMARY

[0004] To overcome the existing deficiencies, the present application provides an engine oil seal online press-fitting device that can solve the problem of traditional oil seal press-fitting, which only positions the outer ring, i.e., the outer diameter, of the oil seal. However, this positioning is not accurate enough and can easily cause deformation and cutting of the press-fitted oil seal, leading to oil leakage during actual use.

[0005] The technical solution adopted by the application to solve the technical problems is as follows:

[0006] An engine oil seal online press-fitting device includes a connecting assembly and a press-fitting assembly.

[0007] The connecting assembly includes a base and a connecting bolt, and the connecting bolt is threaded through the base.

[0008] The press-fitting assembly includes an elastic member, an oil seal press head, an inner ring positioning head, an outer sleeve, and a buffer member. The oil seal press head is arranged on the top of the base, the inner ring positioning head is arranged on the top of the inner ring positioning head, the elastic member is arranged between the base and the inner ring positioning head, the outer sleeve is arranged on the outside of the oil seal press head, and the buffer member is arranged between the base and the outer sleeve.

[0009] In a specific embodiment, the elastic member includes a first spring and a plug, the plug is arranged in the base, and the first spring is arranged between the plug and the inner ring positioning head.

[0010] In a specific embodiment, the oil seal pressing head is provided with a mounting hole, the base is provided with a threaded groove, and the mounting hole and the threaded groove are aligned.

[0011] In a specific embodiment, the inner ring positioning head is provided with a limiting ring, and the limiting ring is attached to the inner wall of the oil seal pressing head.

[0012] In a specific embodiment, the outer sleeve is provided with a strip-shaped hole, the oil seal pressing head is provided with a positioning screw hole, and the strip-shaped hole and the positioning screw hole are threaded through a limiting bolt.

[0013] In a specific embodiment, the buffer comprises a guide column and a second spring, the outer sleeve is provided with a groove and is provided with the guide column and the second spring, and the bottom end of the guide column is connected to the oil seal pressing head.

[0014] In a specific embodiment, the inner ring positioning head is provided with a chamfer, and the end of the inner ring positioning head is provided with a positioning groove.

[0015] In a specific embodiment, the base is provided with an arc-shaped notch on the side, and the connecting bolt is provided with the arc-shaped notch.

[0016] The advantages of the embodiment of the present application are as follows: by providing the base, the connecting bolt, the elastic member, the oil seal pressing head, the inner ring positioning head, the outer sleeve, and the buffer, the problem that the traditional oil seal pressing device only positions the outer ring of the oil seal, that is, the outer diameter, but the positioning is not accurate enough, and the oil seal pressing device is prone to deformation and cutting, and the actual use is prone to oil leakage failure, can be solved, in the problem solving process, the whole is installed on the hydraulic online pressing tool by using the base and the connecting bolt, the oil seal is sleeved on the inner ring positioning head, the inner ring positioning head is aligned and positioned with the engine crankshaft, then the base is extruded, the inner ring positioning head extrudes the elastic member, and the oil seal pressing head pushes the oil seal inner ring to press it into place, so that the positioning is accurate, and the oil seal pressing device is completely avoided from being pressed and broken. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic diagram of an engine oil seal online pressing device provided by the embodiment of the present application;

[0018] Figure 2 is a structural schematic diagram of a base provided by the embodiment of the present application;

[0019] Figure 3 is a structural schematic diagram of an oil seal pressing head provided by the embodiment of the present application;

[0020] Figure 4 is a structural schematic diagram of an inner ring positioning head provided by the embodiment of the present application;

[0021] Figure 5The schematic diagram of the sleeve structure provided in the embodiment of the present application.

[0022] In the figure: 100-connection assembly; 110-base; 111-threaded groove; 112-arc-shaped notch; 120-connection bolt; 200-press-fitting assembly; 210-elastic member; 211-first spring; 212-plug; 220-oil seal press head; 221-mounting hole; 222-positioning screw hole; 230-limiting bolt; 240-inner ring positioning head; 241-limiting ring; 250-sleeve; 251-strip-shaped hole; 260-buffering member; 261-guiding column; 262-second spring. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with embodiments.

[0024] It should be understood that the specific embodiments described herein are merely intended to explain the present application and not to limit the present application.

[0025] In the embodiments, unless otherwise specified, the means used are conventional means in the art.

[0026] Please refer to Figures 1-5 An engine oil seal on-line press-fitting device includes a connection assembly 100 and a press-fitting assembly 200.

[0027] Please refer to Figure 1 and 2 The connection assembly 100 includes a base 110 and a connection bolt 120, and the connection bolt 120 is threaded through the base 110.

[0028] In a specific embodiment, the base 110 is provided with an arc-shaped notch 112 on the side, and the connection bolt 120 and the arc-shaped notch 112. By providing the arc-shaped notch 112, the connection bolt 120 passes through the arc-shaped notch 112, which facilitates the installation and use of the connection bolt 120.

[0029] Please refer to Figure 1 , 2 , 3, 4 and 5, the press-fitting assembly 200 includes an elastic member 210, an oil seal press head 220, an inner ring positioning head 240, a sleeve 250 and a buffering member 260. The oil seal press head 220 is arranged on the top of the base 110, the inner ring positioning head 240 is arranged through the top of the inner ring positioning head 240, the elastic member 210 is arranged between the base 110 and the inner ring positioning head 240, the sleeve 250 is arranged outside the oil seal press head 220, and the buffering member 260 is arranged between the base 110 and the sleeve 250.

[0030] The elastic member 210 comprises a first spring 211 and a plug 212. The plug 212 is arranged in the base 110, and the first spring 211 is arranged between the plug 212 and the inner ring positioning head 240. The first spring 211 and the plug 212 are arranged to push the inner ring positioning head 240 to keep the oil seal pressing head 220 extended when not in use.

[0031] Specifically, the oil seal pressing head 220 is provided with a mounting hole 221, and the base 110 is provided with a threaded groove 111. The mounting hole 221 and the threaded groove 111 are aligned. The mounting hole 221 and the threaded groove 111 are arranged to be connected by the bolt.

[0032] It should be noted that the inner ring positioning head 240 is provided with a limiting ring 241, and the limiting ring 241 is attached to the inner wall of the oil seal pressing head 220. The limiting ring 241 is arranged to prevent the inner ring positioning head 240 from being pushed out of the oil seal pressing head 220.

[0033] In this embodiment, the outer sleeve 250 is provided with a strip-shaped hole 251, and the oil seal pressing head 220 is provided with a positioning screw hole 222. The strip-shaped hole 251 and the positioning screw hole 222 are threaded through the limiting bolt 230. The strip-shaped hole 251, the positioning screw hole 222 and the limiting bolt 230 are arranged to connect the outer sleeve 250 and the oil seal pressing head 220. At the same time, the strip-shaped hole 251 limits the relative movement distance of the outer sleeve 250 and the oil seal pressing head 220.

[0034] The buffer member 260 comprises a guide column 261 and a second spring 262. The outer sleeve 250 is provided with a recess and is provided with the guide column 261 and the second spring 262. The bottom end of the guide column 261 is connected to the oil seal pressing head 220. The guide column 261 and the second spring 262 are arranged to buffer the relative movement of the outer sleeve 250 and the oil seal pressing head 220 when being pressed, and to push the outer sleeve 250 back to the original position after use.

[0035] In a specific embodiment, the inner ring positioning head 240 is provided with a chamfer, and the end of the inner ring positioning head 240 is provided with a positioning groove.

[0036] The working principle of the engine oil seal on-line press fitting device is as follows: when in use, the whole is installed to the output end of the electric cylinder by the base 110 and the connecting bolt 120, the oil seal is sleeved between the inner ring positioning head 240 and the outer sleeve 250, the inner ring positioning head 240 and the engine crankshaft are aligned and positioned, the coaxiality of the crankshaft and the oil seal device is ensured, and the contact surface is perpendicular, then the output end of the electric cylinder pushes the base 110 and the whole to move, the inner ring positioning head 240 extrudes the first spring 211, the oil seal pressing head 220 moves along the inner ring positioning head 240, the oil seal pressing head 220 pushes the oil seal inner ring to press fit in place, at the same time, the outer sleeve 250 contacts the engine shell, the outer sleeve 250 moves relative to the oil seal pressing head 220, and the oil seal is smoothly pressed and fitted, the movement of the oil seal pressing head 220 is limited by the strip-shaped hole 251 and the limiting bolt 230, the oil seal is prevented from being damaged by excessive force, thereby the positioning is accurate, the oil seal is completely press fitted and prevented from being damaged, and the press fitting quality is ensured.

[0037] Finally, it should be noted that: obviously, the above embodiments are only examples for clearly illustrating the present application, and are not limitations of the embodiments. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, all the embodiments need not and cannot be exhausted. The obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. An online press-fitting device for an engine oil seal, characterized in that: include A connecting assembly (100), the connecting assembly (100) comprising a base (110) and a connecting bolt (120), wherein the connecting bolt (120) is threadedly passed through the base (110); A press-fitting assembly (200) includes an elastic member (210), an oil seal pressure head (220), an inner ring positioning head (240), an outer sleeve (250), and a buffer member (260). The oil seal pressure head (220) is arranged on the top of the base (110), the inner ring positioning head (240) is arranged through the top of the inner ring positioning head (240), the elastic member (210) is arranged between the base (110) and the inner ring positioning head (240), the outer sleeve (250) is sleeved on the outside of the oil seal pressure head (220), and the buffer member (260) is arranged between the base (110) and the outer sleeve (250).

2. The online press-fitting device for an engine oil seal according to claim 1, characterized in that: The elastic member (210) includes a first spring (211) and a plug (212), wherein the plug (212) is arranged in the base (110), and the first spring (211) is arranged between the plug (212) and the inner ring positioning head (240).

3. The online press-fitting device for an engine oil seal according to claim 1, characterized in that: The oil seal pressure head (220) is provided with a mounting hole (221), the base (110) is provided with a thread groove (111), and the mounting hole (221) and the thread groove (111) are aligned.

4. The in-line press-fitting device for an engine oil seal according to claim 1, characterized in that: The inner ring positioning head (240) is provided with a limiting ring (241), and the limiting ring (241) is in contact with the inner wall of the oil seal pressure head (220).

5. The online press-fitting device for an engine oil seal according to claim 1, characterized in that: The outer sleeve (250) is provided with a strip-shaped hole (251), the oil seal pressure head (220) is provided with a positioning screw hole (222), and the oil seal pressure head (220) and the positioning screw hole (222) are threadedly penetrated by a limiting bolt (230).

6. The in-line press-fitting device for an engine oil seal according to claim 1, characterized in that: The buffer member (260) includes a guide column (261) and a second spring (262). The outer sleeve (250) is provided with a groove and is provided with the guide column (261) and the second spring (262). The bottom end of the guide column (261) is connected to the oil seal pressure head (220).

7. The in-line press-fitting device for an engine oil seal according to claim 1, characterized in that: The inner ring positioning head (240) is provided with a chamfer, and an end portion of the inner ring positioning head (240) is provided with a positioning groove.

8. The in-line press-fitting device for an engine oil seal according to claim 1, characterized in that: An arc-shaped notch (112) is provided on the circumferential side of the base (110), and the connecting bolt (120) is connected to the arc-shaped notch (112).

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