A skeleton oil seal assembly tooling and its usage method

Abstract

The present invention discloses a mounting tool for a skeleton oil seal, belonging to the technical field of diesel engines, which solves the technical problem of inconvenient existing operations. The tool includes a guide seat, a pressure plate, a indexing push plate, a main push screw, and a crankshaft bolt. The guide seat is locked to the crankshaft through the crankshaft bolt. A U-shaped frame is provided on the side of the guide seat away from the crankshaft. An installation column is provided on the side of the U-shaped frame away from the guide seat. A communicating guide hole and a first screw hole are provided in the installation column. A guide column is provided on one side of the indexing push plate. The pressure plate is provided with a rectangular hole corresponding to the U-shaped frame. The pressure plate is sleeved on the U-shaped frame through the rectangular hole. The indexing push plate is installed in the U-shaped frame, and the guide column of the indexing push plate is slidably installed in the guide hole. The main push screw is threadedly connected to the first screw hole, and one end of the main push screw contacts the guide column. The present invention can disassemble the pressure plate from the guide seat without fully screwing out the screw, and can be separated, with simple operation.

Description

Technical Field

[0001] The present invention relates to the technical field of diesel engine skeleton oil seal assembly, and more specifically, it relates to a skeleton oil seal assembly tooling. Background Art

[0002] The assembly of the rear oil seal is an important process in engine assembly. Its manual pressing form usually converts the rotational motion of a nut into a linear motion to drive a pressure plate to press the oil seal into the mounting hole of the flywheel housing.

[0003] Patent CN206732915U discloses an assembly tooling for an engine oil seal, including: a pressure plate, in the middle of which there is a bolt hole, and on both sides of the bolt hole, there are symmetrically arranged first press-fitting bolt through holes; oil seal press-fitting bolts, which are two paired bolts respectively inserted into the first press-fitting bolt through holes; an oil seal press sleeve, at one end of which there is a protruding bearing seat, and a bearing is arranged in the bearing seat through a bearing retaining ring, and the oil seal press sleeve is movably inserted on the oil seal press-fitting bolts; the other end of the oil seal press sleeve has a radially protruding oil seal pressing-in step; an oil seal press-fitting screw rod, which is screwed through the bolt hole of the pressure plate and is supported by the bearing, and is fixedly connected to one end of the oil seal press sleeve; and an oil seal guiding press head, which is movably inserted on the oil seal press-fitting bolts, and the outer peripheral surface of the oil seal guiding press head is a conical surface.

[0004] To disassemble the pressure plate from the guiding seat in the above-mentioned assembly tooling, it is necessary to unscrew all the nuts to separate them, which is inconvenient to operate. Summary of the Invention

[0005] The technical problem to be solved by the present invention is in view of the above-mentioned deficiencies of the prior art. The purpose of the present invention is to provide a skeleton oil seal assembly tooling that can be quickly separated and is simple to operate.

[0006] The second purpose of the present invention is to provide a usage method of a skeleton oil seal assembly tooling that can be quickly separated and is simple to operate.

[0007] To achieve the above-mentioned first purpose, the present invention provides a skeleton oil seal assembly tooling, including a guiding seat, a pressure plate, a rotating and pushing plate, a main pushing screw rod, and a crankshaft bolt. The guiding seat is locked on the crankshaft through the crankshaft bolt. On the side of the guiding seat away from the crankshaft, there is a U-shaped frame. On the side of the U-shaped frame away from the guiding seat, there is a mounting post. Inside the mounting post, there are a communicating guiding hole and a first screw hole. On one side of the rotating and pushing plate, there is a guiding post. The pressure plate is provided with a rectangular hole corresponding to the U-shaped frame. The pressure plate is sleeved outside the U-shaped frame through the rectangular hole. The rotating and pushing plate is installed inside the U-shaped frame, and the guiding post of the rotating and pushing plate is slidably installed in the guiding hole. The main pushing screw rod is threadedly connected to the first screw hole, and one end of the main pushing screw rod contacts the guiding post. The width of the rotating and pushing plate is smaller than the width of the rectangular hole, the height of the rotating and pushing plate is smaller than the height of the rectangular hole, and the height of the rotating and pushing plate is greater than the width of the rectangular hole.

[0008] As a further improvement, a guiding chute arranged axially is provided on the outer wall of the guiding column, the U-shaped frame is provided with a mounting hole, a guiding pin is installed in the mounting hole, and the lower end of the guiding pin is slidably inserted into the guiding chute.

[0009] Further, the pressure plate is provided with a relief hole corresponding to the position of the crankshaft bolt.

[0010] Further, air holes are provided in the indexing push plate and the guiding column, an oil pocket is provided at one end of the guiding column, and a pushing portion slidably inserted into the oil pocket is provided at one end of the main pushing screw.

[0011] Further, a centering disc is provided on one side of the guiding seat close to the crankshaft, and a positioning head is provided on one side of the centering disc.

[0012] Further, a conical surface is provided on the periphery of the guiding seat, and a cylindrical inner cavity for installing the centering disc is provided in the guiding seat.

[0013] Further, the indexing push plate is provided with a flat position of the push plate, and a flat position of the guiding seat is provided on the inner side of the U-shaped frame.

[0014] In order to achieve the above-mentioned second object, the present invention provides a method for using a skeleton oil seal assembly tooling, including:

[0015] During installation:

[0016] Fix the guiding seat on the crankshaft with the crankshaft bolt, then put the oil seal on the guiding seat, and manually push and press the oil seal to the front end of the big end of the crankshaft.

[0017] Then turn the flat position of the push plate to the position flush with the flat position of the guiding seat, and put on the pressure plate.

[0018] During operation:

[0019] Turn the flat position of the push plate to the position perpendicular to the flat position of the guiding seat, screw in the main pushing screw, push the indexing push plate, the indexing push plate pushes the pressure plate, and pushes the oil seal forward.

[0020] During disassembly:

[0021] First, screw out the main pushing screw, manually press the indexing push plate back into the cylindrical hole, and then rotate it by 90°.

[0022] Take out the pressure plate, then loosen the crankshaft bolt, and separate the guiding seat from the big end of the crankshaft.

[0023] Beneficial effects

[0024] Compared with the prior art, the present invention has the following advantages:

[0025] 1. By sliding the guiding pin in the groove of the indexing push plate, the indexing push plate has the functions of anti-disengagement and directional sliding.

[0026] 2. By means of the present invention, the pressure plate can be disassembled from the guide seat without fully screwing out the screw rod, and separation can be achieved, with simple operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic diagram of the whole of the present invention;

[0028] Figure 2 is a front view of the guide seat of the present invention;

[0029] Figure 3 is a side view of the guide seat of the present invention;

[0030] Figure 4 is a front view of the pressure plate of the present invention;

[0031] Figure 5 is a side view of the pressure plate of the present invention;

[0032] Figure 6 is a front view of the indexing push plate of the present invention;

[0033] Figure 7 is a side view of the indexing push plate of the present invention;

[0034] Figure 8 is a front view of the centering plate of the present invention;

[0035] Figure 9 is a side view of the centering plate of the present invention;

[0036] Figure 10 is a schematic diagram of the screw rod of the invention;

[0037] Figure 11 is a schematic diagram of the guide pin of the present invention;

[0038] Figure 12 is a schematic diagram of the working state of the present invention.

[0039] Wherein: 1 - guide seat, 2 - crankshaft bolt, 3 - pressure plate, 4 - indexing push plate, 5 - guide pin, 6 - main push screw, 11 - conical surface, 12 - cylindrical inner cavity, 13 - flat position of the guide seat, 14 - mounting hole, 15 - guide hole, 16 - first screw hole, 17 - mounting post, 18 - U-shaped frame, 31 - rectangular hole, 32 - relief hole, 40 - guide post, 41 - flat position of the push plate, 42 - guide chute, 43 - air hole, 44 - oil pocket, 61 - top push part, 111 - annular surface of the guide seat, 112 - centering plate, 113 - positioning head. DETAILED DESCRIPTION OF THE INVENTION

[0040] The present invention will be further described below with reference to specific embodiments in the drawings.

[0041] Refer to Figures 1 to 12, A skeleton oil seal assembly tooling, including a guide seat 1, a pressure plate 3, a indexing push plate 4, a main push screw 6, and a crankshaft bolt 2. The guide seat 1 is locked to the crankshaft by the crankshaft bolt 2. On the side of the guide seat 1 away from the crankshaft, there is a U-shaped frame 18. On the side of the U-shaped frame 18 away from the guide seat 1, there is a mounting post 17. Inside the mounting post 17, there are communicating guide holes 15 and first screw holes 16. On one side of the indexing push plate 4, there is a guide post 40. The pressure plate 3 is provided with a rectangular hole 31 corresponding to the U-shaped frame 18. The pressure plate 3 is sleeved outside the U-shaped frame 18 through the rectangular hole 31. The indexing push plate 4 is installed inside the U-shaped frame 18, and the guide post 40 of the indexing push plate 4 is slidably installed in the guide hole 15. The main push screw 6 is threadedly connected to the first screw hole 16, and one end of the main push screw 6 contacts the guide post 40. The width of the indexing push plate 4 is smaller than the width of the rectangular hole 31, the height of the indexing push plate 4 is smaller than the height of the rectangular hole 31, and the height of the indexing push plate 4 is greater than the width of the rectangular hole 31.

[0042] On the outer wall of the guide post 40, there are axially arranged guide chutes 42. The U-shaped frame 18 is provided with a mounting hole 14. Inside the mounting hole 14, a guide pin 5 is installed. The lower end of the guide pin 5 is slidably inserted into the guide chute 42.

[0043] The pressure plate 3 is provided with a relief hole 32 corresponding to the position of the crankshaft bolt 2.

[0044] Inside the indexing push plate 4 and the guide post 40, there are air holes 43. One end of the guide post 40 is provided with an oil pocket 44. One end of the main push screw 6 is provided with a top push portion 61 that is slidably inserted into the oil pocket 44.

[0045] On the side of the guide seat 1 close to the crankshaft, there is a centering disk 112. On one side of the centering disk 112, there is a positioning head 113. On the side of the guide seat 1 close to the crankshaft, there is a guide seat annular surface 111 for inspecting the installation of the oil seal.

[0046] The periphery of the guide seat 1 is provided with a conical surface 11. Inside the guide seat 1, there is a cylindrical inner cavity 12 for installing the centering disk 112.

[0047] The indexing push plate 4 is provided with a push plate flat position 41. Inside the U-shaped frame 18, there is a guide seat flat position 13.

[0048] A method for using a skeleton oil seal assembly tooling, including:

[0049] During installation:

[0050] First, connect the guide seat 1 to the large end of the crankshaft and fix it to the crankshaft with the crankshaft bolt 2. Then, put the oil seal on the guide seat 1 and manually push the oil seal to the front end of the large end of the crankshaft. Finally, turn the indexing push plate 4 to the position flush with the U-shaped frame 18 and put on the pressure plate 3.

[0051] When starting the operation:

[0052] First, shift the indexing push plate 4 to a position perpendicular to the U-shaped frame 18, and rotate and engage the main push screw 6. The top push part 61 presses on the oil pocket 44, causing the indexing push plate 4 to advance along the direction defined by the guide pin 5. The indexing push plate 4 pushes the pressure plate 3, thereby pushing the oil seal forward.

[0053] When the inner end face of the pressure plate 3 comes into contact with the annular surface 111 of the guide seat, the oil seal is installed in place.

[0054] During disassembly:

[0055] First, screw out the main push screw 6, manually press the indexing push plate 4 back into the guide hole 15, and then rotate it 90°. Then remove the pressure plate 3 and loosen the crankshaft bolt 2 to separate the guide seat 1 from the big end of the crankshaft for convenient use next time.

[0056] This tooling eliminates all operations of disassembling the main push nut. By using the main push screw 6, the purpose of quickly pressing and installing the oil seal is achieved.

[0057] The above is only the preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which will not affect the implementation effect of the present invention and the practicality of the patent.

Claims

1. A skeleton oil seal assembly tooling, including a guide seat (1), characterized in that, It also includes a pressure plate (3), a indexing push plate (4), a main push screw (6), and a crankshaft bolt (2). The guide seat (1) is locked to the crankshaft by the crankshaft bolt (2). On the side of the guide seat (1) away from the crankshaft, there is a U-shaped frame (18). On the side of the U-shaped frame (18) away from the guide seat (1), there is a mounting post (17). Inside the mounting post (17), there are a communicating guide hole (15) and a first screw hole (16). On one side of the indexing push plate (4), there is a guide post (40). The pressure plate (3) is provided with a rectangular hole (31) corresponding to the U-shaped frame (18). The pressure plate (3) is sleeved outside the U-shaped frame (18) through the rectangular hole (31). The indexing push plate (4) is installed inside the U-shaped frame (18), and the guide post (40) of the indexing push plate (4) is slidably installed in the guide hole (15). The main push screw (6) is threadedly connected to the first screw hole (16). One end of the main push screw (6) contacts the guide post (40). The width of the indexing push plate (4) is smaller than the width of the rectangular hole (31), the height of the indexing push plate (4) is smaller than the height of the rectangular hole (31), and the height of the indexing push plate (4) is greater than the width of the rectangular hole (31). On the outer wall of the guide post (40), there are axially arranged guide chutes (42). The U-shaped frame (18) is provided with a mounting hole (14). Inside the mounting hole (14), a guide pin (5) is installed. The lower end of the guide pin (5) is slidably inserted into the guide chute (42). On the side of the guide seat (1) close to the crankshaft, there is a centering disc (112). On one side of the centering disc (112), there is a positioning head (113).

2. The assembly tooling for a skeleton oil seal according to claim 1, wherein, The pressure plate (3) is provided with a relief hole (32) corresponding to the position of the crankshaft bolt (2).

3. The assembly tooling for a skeleton oil seal according to claim 1, characterized in that, Inside the indexing push plate (4) and the guide post (40), there is an air hole (43). At one end of the guide post (40), there is an oil pocket (44). One end of the main push screw (6) is provided with a pushing portion (61) slidably inserted into the oil pocket (44).

4. The assembly tooling for a skeleton oil seal according to claim 1, wherein Around the guide seat (1), there is a conical surface (11). Inside the guide seat (1), there is a cylindrical inner cavity (12) for installing the centering disc (112).

5. A method for using an assembly tooling for a skeleton oil seal according to any one of claims 1-4, characterized in that, It includes: During installation: Fix the guide seat (1) to the crankshaft with the crankshaft bolt (2), then put an oil seal on the guide seat (1) and manually press the oil seal to the front end of the large end of the crankshaft; Then turn the indexing push plate (4) to the position flush with the U-shaped frame (18) and put on the pressure plate (3); When starting the operation: Turn the indexing push plate (4) to the position perpendicular to the U-shaped frame (18), screw in the main push screw (6), push the indexing push plate (4), and the indexing push plate (4) pushes the pressure plate (3) to push the oil seal forward; During disassembly: First, unscrew the main push screw (6), manually press the indexing push plate (4) back into the guide hole (15), and then rotate it 90°; Take out the pressure plate (3), then loosen the crankshaft bolt (2) to separate the guide seat (1) from the large end of the crankshaft.

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