Crankshaft rear oil seal leading-in device

Abstract

The utility model discloses a crankshaft rear oil seal leading-in device which comprises a base, a positioning bolt is connected to the upper top face of the left side of the base in a penetrating and threaded mode, a first shell is fixedly installed in the center of the upper top face of the base in an embedded mode, and a first sliding groove is formed in the lower end of the left wall face in the first shell. According to the crankshaft rear oil seal leading-in device, the first shell is firstly fixed through the positioning bolt, the body is placed between the first sliding block and the second sliding block, the first sliding block is arranged in the first sliding groove in a sliding mode, the first spring is fixedly installed at the left end of the first sliding block in a sleeving mode, and the first spring is fixedly installed at the left end of the first sliding block in a sleeving mode. Then the first shell and the second shell are assembled, an electric push rod is started to drive a pressing plate to move downwards, the downward pressing force of the pressing plate is buffered through a rhombic rod and a driving spring, body damage caused by too large downward pressing force is prevented, the downward pressing height of the pressing plate is limited through a supporting frame, and the working efficiency and the working quality of equipment are improved; and the labor burden of a user is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of crankshaft, concretely to a crankshaft rear oil seal leading-in device. BACKGROUND

[0002] In internal combustion engines, fuel is burned in the cylinders of the engine, which pushes the pistons downward, and the pistons are connected to the crankshaft through connecting rods. The linear motion of the pistons is converted into the rotational motion of the crankshaft through the crank portion, which drives the output of the engine. The crankshaft is a key component in internal combustion engines, steam engines, and other mechanical devices. Its main function is to convert the reciprocating motion of the pistons into rotational motion. The crankshaft withstands huge forces and torques during operation, so the selection of materials, machining precision, and assembly quality are crucial to ensure its reliability and durability under high load operation. However, the existing crankshaft rear oil seal leading-in device still has some defects. For example:

[0003] The "crankshaft rear oil seal leading-in device" with application number CN201721138104.4 includes a cone with a hollow interior at its small end. A disc cavity is provided on the outer end face of the large end of the cone. A central hole and a first air hole are provided on the side wall of the disc cavity. A pin is provided on the outer end face of the large end of the cone. A suction cup includes a suction cup body and a connecting rod. One end of the connecting rod is connected to the back side of the suction cup body. The suction cup body is used to adhere to the large end face of the crankshaft. The connecting rod passes through the central hole, and the suction cup body is accommodated in the disc cavity. A second air hole is provided in the connecting rod. A threaded sleeve is screwed to the other end of the connecting rod. A threaded taper with a taper valve core is provided on the other end of the threaded sleeve. The taper valve core is used to seal the second air hole in the connecting rod. A third air hole is provided on the side wall of the threaded sleeve between the other end of the connecting rod and the taper valve core. A spring is used to tightly attach the cone to the large end face of the crankshaft. This leading-in device is easy to operate, can reduce labor intensity, and can eliminate the risk of magnetized crankshafts. As mentioned above, this crankshaft rear oil seal leading-in device can be used well, but when installing the body, the force of pressing down the body cannot be buffered, and the height of pressing down the pressing plate cannot be limited, which can easily damage the body and reduce the sealing effect. When using the equipment, the user still needs to operate manually, which increases the labor burden of the user and reduces the working efficiency of the equipment, which often troubles the user. SUMMARY

[0004] The utility model aims at providing a kind of crankshaft rear oil seal leading-in device, to solve the problem that the body cannot be buffered when installing the body in the above background art, and the height of pressing down the pressing plate cannot be limited, which can easily damage the body and reduce the sealing effect, when using the equipment, the user still needs to operate manually, which increases the labor burden of the user and reduces the working efficiency of the equipment, which often troubles the user.

[0005] To achieve the above object, the utility model provides following technical scheme: a crankshaft rear oil seal guide device, including the base, the left side upper top surface of base is passed through the threaded connection with the location bolt, the upper top surface center of base is inlay fixed with first casing, the inside left wall surface lower end of first casing is equipped with first sliding slot, the inside sliding connection of first sliding slot has first sliding block, the left end of first sliding block is equipped fixedly with first spring, the upper side of first sliding slot is equipped with second sliding slot, the inner wall surface sliding connection of second sliding slot has second sliding block, and the left side of second sliding block is equipped fixedly with second spring.

[0006] As the preferred technical scheme of the utility model, the location bolt, the first sliding slot, the first sliding block, the first spring, the second sliding slot, the second sliding block and the second spring are symmetrically arranged about the center of the base, the upper top surface of the first casing is provided with a second casing, and the left lower bottom surface of the second casing is fixedly provided with a fixed block.

[0007] As the preferred technical scheme of the utility model, the left wall surface middle section of the fixed block is slidingly connected with a protruding block, the left wall surface of the protruding block is inlaidly and interactively connected to the left wall surface of the second casing, the left wall surface of the protruding block is fixedly provided with a third spring, and the left end of the third spring is fixedly installed on the left wall surface of the first casing.

[0008] As the preferred technical scheme of the utility model, the protruding block and the third spring are symmetrically arranged about the center of the fixed block, the upper top surface center of the second casing is inlaidly and fixedly provided with an electric push rod, the lower end of the electric push rod is slidingly connected to the upper top surface of the second casing, and the lower bottom surface of the electric push rod is fixedly provided with a pressing plate.

[0009] As the preferred technical scheme of the utility model, the pressing plate is slidingly connected with the first casing, the left side of the upper top surface of the pressing plate is fixedly provided with a rhombic rod, the middle section of the rhombic rod is slidingly connected to the upper top surface of the second casing, and the upper end of the rhombic rod is fixedly provided with a driving spring.

[0010] As the preferred technical scheme of the utility model, the lower bottom surface of the second casing is fixedly provided with a support frame, the support frame is slidingly connected to the upper top surface of the pressing plate, and a body is arranged between the first sliding block and the second sliding block.

[0011] Compared with the prior art, the beneficial effects of the utility model are: the first shell body is fixed through the positioning bolt, and the body is placed between the first sliding block and the second sliding block, then the first shell body and the second shell body are assembled, and the electric push rod is started to drive the pressing plate to move downwards, the pressing plate is buffered by the diamond-shaped rod and the driving spring, the body is prevented from being damaged due to excessive downward pressure, and the height of the downward pressure of the pressing plate is limited by the supporting frame, the working efficiency and the working quality of the equipment are improved, and the labor burden of the user is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the front view cross section structure schematic drawing of the utility model;

[0013] Figure 2 It is the front view cross section structure schematic drawing of the first sliding block of the utility model;

[0014] Figure 3 It is the front view cross section structure schematic drawing of the second sliding block of the utility model;

[0015] Figure 4 It is the plan view cross section structure schematic drawing of the pressing plate of the utility model;

[0016] Figure 5 It is the front view cross section structure schematic drawing of the utility model Figure 1 It is the front view cross section structure schematic drawing of the utility model

[0017] In the drawing: 1, base; 2, positioning bolt; 3, first shell body; 4, first sliding slot; 5, first sliding block; 6, first spring; 7, second sliding slot; 8, second sliding block; 9, second spring; 10, second shell body; 11, fixed block; 12, protruding block; 13, third spring; 14, electric push rod; 15, pressing plate; 16, diamond-shaped rod; 17, driving spring; 18, supporting frame; 19, body. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0019] Please refer to Figures 1-5The utility model provides a technical scheme, a crankshaft rear oil seal leading-in device, including base 1, the left side upper top surface of base 1 is connected with the positioning bolt 2 through screw thread, the upper top surface center of base 1 is inlayed fixed installation has first casing 3, the inside left wall surface lower end of first casing 3 is equipped with first sliding slot 4, first sliding slot 4's inside sliding connection has first sliding block 5, and first sliding block 5's left end sleeve fixed installation has first spring 6, and the upper of first sliding slot 4 is equipped with second sliding slot 7, and the inner wall surface sliding connection of second sliding slot 7 has second sliding block 8, and second sliding block 8's left side sleeve fixed installation has second spring 9.

[0020] Positioning bolt 2, first sliding slot 4, first sliding block 5, first spring 6, second sliding slot 7, second sliding block 8 and second spring 9 are about the center symmetry of base 1, and the upper top surface of first casing 3 is provided with second casing 10, and the left lower bottom of second casing 10 is fixedly installed with fixed block 11.

[0021] The left wall surface middle section of fixed block 11 is slidingly connected with a lug 12, the left wall surface of lug 12 is inlaidly connected to the left wall surface of second casing 10, the left wall surface of lug 12 is fixedly installed with a third spring 13, and the left end of third spring 13 is fixedly installed to the left wall surface of first casing 3.

[0022] Lug 12 and third spring 13 are about the center symmetry of fixed block 11, the upper top surface center of second casing 10 is inlaidly fixedly installed with an electric push rod 14, the lower end of electric push rod 14 is slidingly connected to the upper top surface of second casing 10, and the lower bottom of electric push rod 14 is fixedly installed with a pressing plate 15.

[0023] The pressing plate 15 is slidingly connected with the first casing 3, the left side of the upper top surface of the pressing plate 15 is fixedly installed with a rhombic rod 16, the middle section of the rhombic rod 16 is slidingly connected to the upper top surface of the second casing 10, and the upper end of the rhombic rod 16 is fixedly installed with a main spring 17.

[0024] The lower bottom of second casing 10 is fixedly installed with a support frame 18, the support frame 18 is slidingly connected to the upper top surface of the pressing plate 15, and the body 19 is arranged between the first sliding block 5 and the second sliding block 8.

[0025] Working principle: in use a kind of crankshaft rear oil seal guide device, first, user places body 19 in the first shell 3, presses body 19 downward, by the sliding connection of body 19 on the top surface of second slider 8, so that body 19 is located between first slider 5 and second slider 8, then by rotating fixed bolt, first shell 3 is fixed, at this time, first shell 3 and second shell 10 are assembled, by pressing second shell 10 to the top surface of first shell 3, by the sliding connection of fixed block 11 and lug 12, and by the extrusion of third spring 13 to lug 12, so that second shell 10 is fixedly installed on the top surface of first shell 3, then by starting electric push rod 14, driving plate 15 moves downward, by support frame 18, limiting plate 15 is limited, and by pressing plate 15, body 19 is extruded downward, by the sliding connection of body 19 and first slider 5, body 19 is assembled, so a series of work can be completed, the content not described in detail in the specification belongs to the prior art known to those skilled in the art.

[0026] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all respects as illustrative and not restrictive, and the scope of the present application should be defined by the appended claims rather than the above description, and it is intended to embrace all changes and modifications that fall within the meaning and scope of equivalents of the claims. Any reference signs in the claims should not be construed as limiting the claims to which they belong.

Claims

1. A crankshaft rear oil seal guide device, comprising a base (1); Its characterized in that: The left side of the upper surface of the base (1) is threaded with a positioning bolt (2), the center of the upper surface of the base (1) is embedded and fixedly installed with a first shell (3), the inside left wall surface of the first shell (3) is provided with a first sliding groove (4) at the lower end, the first sliding groove (4) is slidably connected with a first sliding block (5), the left end of the first sliding block (5) is fixedly installed with a first spring (6), the upper side of the first sliding groove (4) is provided with a second sliding groove (7), the inner wall surface of the second sliding groove (7) is slidably connected with a second sliding block (8), and the left side of the second sliding block (8) is fixedly installed with a second spring (9).

2. A crankshaft rear oil seal guide apparatus according to claim 1, wherein The positioning bolt (2), the first sliding groove (4), the first sliding block (5), the first spring (6), the second sliding groove (7), the second sliding block (8) and the second spring (9) are symmetrically arranged about the center of the base (1), and the upper surface of the first shell (3) is provided with a second shell (10), and the left lower surface of the second shell (10) is fixedly installed with a fixed block (11).

3. A crankshaft rear oil seal guide device according to claim 2, characterized in that, The left wall surface of the fixed block (11) is slidably connected with a protruding block (12), the left wall surface of the protruding block (12) is embedded and interactively connected to the left wall surface of the second shell (10), the left wall surface of the protruding block (12) is fixedly installed with a third spring (13), and the left end of the third spring (13) is fixedly installed to the left wall surface of the first shell (3).

4. A crankshaft rear oil seal guide apparatus according to claim 3, wherein The protruding block (12) and the third spring (13) are symmetrically arranged about the center of the fixed block (11), the center of the upper surface of the second shell (10) is embedded and fixedly installed with an electric push rod (14), the lower end of the electric push rod (14) is slidably connected to the upper surface of the second shell (10), and the lower surface of the electric push rod (14) is fixedly installed with a pressing plate (15).

5. A crankshaft rear oil seal guide apparatus according to claim 4, wherein The pressing plate (15) is slidably connected with the first shell (3), the left side of the upper surface of the pressing plate (15) is fixedly installed with a rhombic rod (16), the middle section of the rhombic rod (16) is slidably connected to the upper surface of the second shell (10), and the upper end of the rhombic rod (16) is fixedly installed with a main spring (17).

6. A crankshaft rear oil seal guide apparatus according to claim 5, wherein The lower surface of the second shell (10) is fixedly installed with a support frame (18), the support frame (18) is slidably connected to the upper surface of the pressing plate (15), and the first sliding block (5) and the second sliding block (8) are provided with a body (19).

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