Engine cylinder oil seal pressing machine

Abstract

The utility model discloses an engine cylinder oil seal press-fitting machine which comprises a working table, supporting plates are fixedly installed at the two ends of the upper surface of the working table, oil seal press-fitting structures are arranged in the supporting plates, a sliding groove is formed in the position, between the two supporting plates, of the upper surface of the working table, and a position adjusting device is arranged between the sliding groove and the working table. By designing the oil seal press-fitting structure, when the oil seal press-fitting device is used, an engine cylinder body is placed on the placing table, the second lead screw is rotated, the positions of the crankshaft and the pressing pipe are adjusted, then a worker can rotate the first lead screw to drive the pressing pipe to move towards the crankshaft, and the pressing pipe can extrude an oil seal in the moving process; the oil seal is driven to slide on the crankshaft in the direction of the engine cylinder body, when the limiting ring abuts against the engine cylinder body, it means that press fitting of the oil seal is completed, and therefore damage to the oil seal, the crankshaft and the engine cylinder body when the oil seal is manually installed is reduced, and meanwhile the installation efficiency of the oil seal can be improved compared with an existing press fitting machine.

Description

Technical Field

[0001] The utility model relates to the technical field of press-fitting equipment, in particular to a press-fitting machine for an engine cylinder oil seal. Background Art

[0002] Oil seal refers to a mechanical component used to seal oil, mostly used for sealing lubricating oil. It isolates the lubricating components in the transmission parts from other components to prevent leakage of lubricating oil. At present, during the maintenance of the engine, the crankshaft oil seal is generally pressed by manual operation. Maintenance personnel generally use a soft hammer made of rubber to knock the oil seal to knock the oil seal between the engine cylinder block and the crankshaft. The above oil seal installation method has the disadvantages of slow installation efficiency and high labor intensity. The oil seal may damage the cylinder block, crankshaft or oil seal during the knocking process, affecting its service life. During use, the existing press machine can only install one set of oil seals at a time due to the up-and-down extrusion method, which is inefficient and easy to damage the engine housing when adjusting the crankshaft position. Utility Model Content

[0003] The utility model aims to provide an engine cylinder oil seal press assembly machine to solve the problems raised in the background technology in view of the deficiencies of the prior art.

[0004] To achieve this purpose, the utility model adopts the following technical solutions:

[0005] An engine cylinder oil seal press machine comprises a workbench, support plates are fixedly installed at both ends of the upper surface of the workbench, an oil seal press structure is arranged inside the support plate, a slide groove is opened on the upper surface of the workbench between two groups of support plates, a position adjustment device is arranged between the slide groove and the workbench, an engine cylinder body is arranged on the position adjustment device, a crankshaft is arranged on the outer walls of both sides of the engine cylinder body, and an oil seal is arranged on the sliding sleeve of the crankshaft.

[0006] As a preferred solution of the engine cylinder oil seal pressing machine, the oil seal pressing structure includes a pressing tube, the inner diameter of the pressing tube matches the outer diameter of the crankshaft, a sleeve is fixedly sleeved on the pressing tube, two sets of connecting rods are slidably connected to one end of the sleeve, a limiting ring is fixedly installed on the end of the connecting rod away from the sleeve, the inner diameter of the limiting ring is larger than the outer diameter of the oil seal, and a spring is fixedly installed on the end of the connecting rod away from the limiting ring, wherein the spring is fixedly installed inside the sleeve.

[0007] As a preferred solution of the engine cylinder oil seal pressing machine, the end of the pressing tube away from the limit ring is rotatably connected to the first screw rod, the first screw rod is threadedly connected to the support plate, the end of the first screw rod away from the pressing tube is fixedly installed with a first turntable, and the side walls of the pressing tube are located above and below the first screw rod and are fixedly installed with two groups of limit rods that can slide inside the support plate.

[0008] As a preferred solution of the engine cylinder oil seal press, the position adjustment device includes a placing table, a slider that can slide back and forth inside the slide groove is fixedly installed on the bottom of the placing table, a second screw rod is threadedly connected inside the slider, and both ends of the second screw rod are rotatably connected to the workbench.

[0009] As a preferred solution of the engine cylinder oil seal press, a connecting shaft is fixedly installed at one end of the second screw rod, a second turntable is fixedly installed at the end of the connecting shaft away from the second screw rod, baffles are fixedly installed at both ends of the upper surface of the placement table, and the vertical section of the baffle is a trapezoid that is wide at the top and narrow at the bottom.

[0010] As a preferred solution of the engine cylinder oil seal press, four groups of legs are fixedly installed on the bottom of the workbench.

[0011] Beneficial effects of the utility model:

[0012] The utility model adopts the structural design of the oil seal pressing structure and the position adjustment device. When in use, the engine cylinder body is placed on the placing table, and the second screw rod is rotated to adjust the position of the crankshaft and the pressing tube. Then the staff can rotate the first screw rod to drive the pressing tube to move in the direction of the crankshaft. The pressing tube will squeeze the oil seal during the movement, and drive the oil seal to slide on the crankshaft in the direction of the engine cylinder body. When the limit ring contacts the engine cylinder body, it means that the oil seal pressing is completed, thereby reducing the damage to the oil seal, the crankshaft and the engine cylinder body when the oil seal is installed manually. At the same time, compared with the existing pressing machine, the installation efficiency of the oil seal can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for use in the embodiments of the present utility model. Obviously, the drawings described below are only some embodiments of the present utility model, and for ordinary technicians in this field, other drawings can also be obtained based on these drawings without creative work.

[0014] Figure 1 The utility model is a schematic diagram of the overall structure of the engine cylinder oil seal press assembly machine.

[0015] Figure 2 It is a structural schematic diagram of the oil seal press-fit structure described in the utility model.

[0016] Figure 3 It is a structural schematic diagram of the position adjustment device described in the utility model.

[0017] In the figure:

[0018] 1. Workbench; 2. Support plate; 3. Oil seal pressing structure; 301. Pressing tube; 302. Sleeve; 303. Connecting rod; 304. Limiting ring; 305. First screw rod; 306. First turntable; 307. Limiting rod; 4. Slide; 5. Position adjustment device; 501. Placing table; 502. Sliding block; 503. Second screw rod; 504. Connecting shaft; 505. Second turntable; 506. Baffle; 6. Engine block; 7. Crankshaft; 8. Oil seal; 9. Support leg. DETAILED DESCRIPTION

[0019] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0020] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0021] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0022] In the description of the present invention, unless otherwise clearly specified and limited, if the term "connection" or the like appears to indicate the connection relationship between components, the term should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two components or the interaction relationship between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] like Figures 1 to 3As shown, the utility model provides an engine cylinder oil seal press machine, comprising a workbench 1, support plates 2 are fixedly installed at both ends of the upper surface of the workbench 1, an oil seal press structure 3 is arranged inside the support plate 2, a slide groove 4 is opened on the upper surface of the workbench 1 between two groups of support plates 2, a position adjustment device 5 is arranged between the slide groove 4 and the workbench 1, an engine cylinder body 6 is arranged on the position adjustment device 5, crankshafts 7 are arranged on the outer walls of both sides of the engine cylinder body 6, an oil seal 8 is arranged on the sliding sleeve of the crankshaft 7, and four groups of legs 9 are fixedly installed on the bottom of the workbench 1.

[0024] In the present embodiment, the oil seal pressing structure 3 specifically includes a pressing tube 301, the inner diameter of the pressing tube 301 matches the outer diameter of the crankshaft 7, a sleeve 302 is fixedly sleeved on the pressing tube 301, one end of the sleeve 302 is slidably connected with two sets of connecting rods 303, one end of the connecting rod 303 away from the sleeve 302 is fixedly installed with a limiting ring 304, the inner diameter of the limiting ring 304 is larger than the outer diameter of the oil seal 8, and one end of the connecting rod 303 away from the limiting ring 304 is fixedly installed with a spring, wherein the spring is fixedly installed inside the sleeve 302, the pressing tube 301 will squeeze the oil seal 8 during the movement, and drive the oil seal 8 to slide on the crankshaft 7 toward the direction of the engine cylinder body 6, when the limiting ring 304 conflicts with the engine cylinder body 6, it means that the oil seal 8 is pressed and installed, and the coordinated use of the connecting rod 303 and the sleeve 302 can prevent the staff from excessively rotating and causing extrusion damage between the limiting ring 304 and the engine cylinder body 6.

[0025] In this embodiment, the end of the pressing tube 301 away from the limiting ring 304 is also rotatably connected to the first screw rod 305, and the first screw rod 305 is threadedly connected to the support plate 2. The end of the first screw rod 305 away from the pressing tube 301 is fixedly installed with a first turntable 306. The side walls of the pressing tube 301 are located above and below the first screw rod 305 and are fixedly installed with two groups of limiting rods 307 that can slide inside the support plate 2. By rotating the first turntable 306, the first screw rod 305 can be driven to move inside the support plate 2, thereby driving the pressing tube 301 to move in the direction of the crankshaft 7, and the limiting rod 307 can prevent the pressing tube 301 from following the rotation of the first screw rod 305, thereby reducing the friction damage to the oil seal 8.

[0026] In this embodiment, the position adjustment device 5 specifically includes a placing table 501, a slider 502 that can slide back and forth inside the chute 4 is fixedly installed at the bottom of the placing table 501, a second screw rod 503 is threadedly connected inside the slider 502, and both ends of the second screw rod 503 are rotatably connected to the workbench 1, and a connecting shaft 504 is fixedly installed at one end of the second screw rod 503, and a second rotating disk 505 is fixedly installed at one end of the connecting shaft 504 away from the second screw rod 503, and baffles 506 are fixedly installed at both ends of the upper surface of the placing table 501, and the vertical section of the baffle 506 is a trapezoid with a wide upper part and a narrow lower part. When in use, the staff can rotate the second rotating disk 505, thereby driving the second screw rod 503 to rotate through the connecting shaft 504, and after the second screw rod 503 rotates, it can drive the slider 502 to slide back and forth inside the chute 4, so as to adjust the position of the crankshaft 7 to align with the pressing tube 301, and the baffle 506 can limit and fix the position of the engine cylinder 6 when the oil seal 8 is pressed, so as to prevent it from sliding.

[0027] Working principle:

[0028] When in use, the engine cylinder body 6 is placed on the placement table 501, and the crankshaft 7 is distributed left and right. Then, the second turntable 505 is rotated to drive the second screw rod 503 to rotate, so as to drive the slider 502 to slide back and forth inside the slide groove 4, thereby adjusting the crankshaft 7 and the pressing tube 301 to be distributed in a straight line. Then, the staff can rotate the first turntable 306 to drive the first screw rod 305 to move inside the support plate 2, thereby driving the pressing tube 301 to move in the direction of the crankshaft 7. The pressing tube 301 will squeeze the oil seal 8 during the movement, driving the oil seal 8 to slide on the crankshaft 7 toward the direction of the engine cylinder body 6. When the limit ring 304 contacts the engine cylinder body 6, it means that the oil seal 8 is pressed and installed. The damage to the oil seal 8, the crankshaft 7 and the engine cylinder body 6 when the oil seal 8 is manually installed is reduced. At the same time, compared with the existing pressing machine, the installation efficiency of the oil seal 8 can be improved.

[0029] It should be noted that the above specific implementations are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art should understand that various modifications, equivalent substitutions, changes, etc. can be made to the present invention. However, as long as these changes do not deviate from the spirit of the present invention, they should be within the scope of protection of the present invention. In addition, some terms used in the specification and claims of this application are not restrictive, but are only for the convenience of description.

Claims

1. An engine cylinder oil seal press machine, characterized in that: The invention comprises a workbench (1), support plates (2) are fixedly mounted at both ends of the upper surface of the workbench (1), an oil seal pressing structure (3) is arranged inside the support plate (2), a slide groove (4) is provided on the upper surface of the workbench (1) between two groups of support plates (2), a position adjustment device (5) is arranged between the slide groove (4) and the workbench (1), an engine cylinder block (6) is arranged on the position adjustment device (5), a crankshaft (7) is arranged on the outer walls of both sides of the engine cylinder block (6), and an oil seal (8) is arranged on the sliding sleeve of the crankshaft (7).

2. The engine cylinder oil seal press machine according to claim 1, characterized in that: The oil seal pressing structure (3) comprises a pressing tube (301), the inner diameter of which matches the outer diameter of the crankshaft (7), a sleeve (302) being fixedly sleeved on the pressing tube (301), one end of which is slidably connected with two groups of connecting rods (303), one end of which is away from the sleeve (302) being fixedly mounted with a limiting ring (304), the inner diameter of which is larger than the outer diameter of the oil seal (8), and one end of which is away from the limiting ring (304) being fixedly mounted with a spring, wherein the spring is fixedly mounted inside the sleeve (302).

3. The engine cylinder oil seal press machine according to claim 2, characterized in that: One end of the pressing tube (301) away from the limiting ring (304) is rotatably connected to a first screw rod (305), the first screw rod (305) is threadedly connected to the support plate (2), one end of the first screw rod (305) away from the pressing tube (301) is fixedly installed with a first rotating disk (306), and two groups of limiting rods (307) that can slide inside the support plate (2) are fixedly installed on the side wall of the pressing tube (301) above and below the first screw rod (305).

4. The engine cylinder oil seal press machine according to claim 1, characterized in that: The position adjustment device (5) comprises a placing table (501), a slider (502) which can slide back and forth inside the slide groove (4) is fixedly installed at the bottom of the placing table (501), a second screw rod (503) is internally threadedly connected to the slider (502), and both ends of the second screw rod (503) are rotatably connected to the workbench (1).

5. The engine cylinder oil seal press machine according to claim 4, characterized in that: A connecting shaft (504) is fixedly mounted on one end of the second screw rod (503), a second turntable (505) is fixedly mounted on one end of the connecting shaft (504) away from the second screw rod (503), baffles (506) are fixedly mounted on both ends of the upper surface of the placement platform (501), and the vertical section of the baffles (506) is a trapezoid that is wide at the top and narrow at the bottom.

6. The engine cylinder oil seal press machine according to claim 1, characterized in that: Four groups of supporting legs (9) are fixedly mounted on the bottom of the workbench (1).

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