CN213352301U

CN213352301U - Press dismouting of engine piston pin is put

Info

Publication number: CN213352301U
Application number: CN202022377875.7U
Authority: CN
Inventors: 廖玲娜
Original assignee: Chongqing Jiling Machinery Parts Co ltd
Current assignee: Chongqing Jiling Machinery Parts Co ltd
Priority date: 2020-10-23
Filing date: 2020-10-23
Publication date: 2021-06-04
Anticipated expiration: 2030-10-23

Abstract

The utility model discloses a press-mounting and dismounting device of an engine piston pin, which comprises a base, wherein a first clamping cylinder is fixedly connected with the outer surface of the top of the base; the base is internally and fixedly provided with a connecting plate, the inner side wall of the connecting plate is movably connected with a lead screw main body, the outer side wall of the lead screw main body is movably sleeved with a nut seat, and the outer surface of the top of the nut seat is fixedly connected with a second clamping cylinder; a piston main body is arranged between the first clamping cylinder and the second clamping cylinder, the inner side wall of the piston main body is connected with a connecting rod, and a piston pin main body is arranged between the connecting rod and the piston main body; the utility model discloses in, through being provided with devices such as lead screw main part, nut seat, first clamping cylinder and second clamping cylinder, the rotation through the lead screw main part makes the nut seat remove along the lead screw main part, drives the second and presss from both sides a clamping cylinder and is close to press from both sides tightly the piston towards first clamping cylinder, is convenient for press from both sides tight fixedly to not unidimensional piston, the device simple structure, convenient and practical.

Description

Press dismouting of engine piston pin is put

Technical Field

The utility model relates to the technical field of engines, especially, relate to a pressure dismouting of engine piston pin is put.

Background

An Engine (Engine) is a machine capable of converting other forms of energy into mechanical energy, including, for example, internal combustion engines (reciprocating piston engines), external combustion engines (stirling engines, steam engines, etc.), jet engines, electric motors, etc. Such as internal combustion engines, typically convert chemical energy into mechanical energy. The wrist pin is a cylindrical pin mounted on the skirt of the piston. The middle part of the connecting rod passes through a small end hole of the connecting rod and is used for connecting the piston and the connecting rod, and the function of the connecting rod is to transmit the gas acting force borne by the piston to the connecting rod or to enable the small end of the connecting rod to drive the piston to move together. To reduce weight, piston pins are typically made of high quality alloy steel and are hollow. The piston pin bears large periodic impact load under high temperature condition, and because the swinging angle of the piston pin in the pin hole is not large, a lubricating oil film is difficult to form, so the lubricating condition is poor. For this purpose, the piston pin must have sufficient rigidity, strength and wear resistance. The mass is as small as possible and the pin should have a suitable fit clearance with the pin hole and good surface quality.

The existing piston pin pressing and disassembling work is basically finished manually, the piston pin is disassembled by a hammer and other objects after a workpiece needing to be disassembled is fixed, the disassembling method is time-consuming and labor-consuming and has high disassembling difficulty, and therefore a new engine piston pin pressing and disassembling device needs to be designed to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a press-mounting and dismounting device of an engine piston pin.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the press-dismounting device for the engine piston pin comprises a base, wherein a first clamping cylinder is fixedly connected to the outer surface of the top of the base;

the base is internally and fixedly provided with a connecting plate, the inner side wall of the connecting plate is movably connected with a lead screw main body, the outer side wall of the lead screw main body is movably sleeved with a nut seat, and the outer surface of the top of the nut seat is fixedly connected with a second clamping cylinder;

a piston main body is arranged between the first clamping cylinder and the second clamping cylinder, the inner side wall of the piston main body is connected with a connecting rod, and a piston pin main body is arranged between the connecting rod and the piston main body;

a sleeve seat is fixedly connected to the outer surface of the top of the base and located on one side of the second clamping cylinder, a telescopic cylinder is fixedly mounted on the inner wall of the bottom of the sleeve seat, and a telescopic rod is fixedly connected to the top of a telescopic shaft of the telescopic cylinder;

a rotating motor is arranged on the rear side of the telescopic rod, a gear is fixedly sleeved on the outer side wall of an output shaft of the rotating motor, and a telescopic seat is movably connected with the inner side wall of the telescopic rod at a position corresponding to the gear;

the outer surface of the top of the telescopic seat is fixedly provided with a motor, and one side of an output shaft of the motor is fixedly connected with a movable bolt;

and a cylinder is fixedly sleeved on the inner side wall of the telescopic rod at a position corresponding to the movable bolt.

As a further description of the above technical solution:

the first clamping cylinder is fixedly connected with the base through welding, and the first clamping cylinder and the second clamping cylinder are symmetrically distributed.

As a further description of the above technical solution:

and a rotary connecting hole is formed in one side of the base, and corresponds to the lead screw body.

As a further description of the above technical solution:

the center of the piston pin main body and the center of the movable bolt are on the same straight line.

As a further description of the above technical solution:

the bottom of the telescopic seat is provided with a rack structure corresponding to the gear, and the telescopic seat and the gear are meshed with each other.

As a further description of the above technical solution:

the cylinder is in threaded connection with the movable bolt.

The utility model discloses following beneficial effect has:

1. the utility model provides a press dismouting of engine piston pin to put compares with traditional device, through being provided with devices such as lead screw main part, nut seat, first clamping cylinder and second clamping cylinder, makes the nut seat remove along the lead screw main part through the rotation of lead screw main part, drives the second and presss from both sides a clamping cylinder and is close to pressing from both sides the piston towards first clamping cylinder, is convenient for press from both sides tight fixed to not unidimensional piston, the device simple structure, convenient and practical.

2. Compared with the traditional device, the device has great innovation and improvement in structure and design, the output shaft of the rotating motor drives the gear to rotate through the arrangement of the telescopic seat, the motor, the rotating motor, the gear, the movable bolt, the cylinder and the like, the movable bolt is driven by the output shaft of the motor to rotate in the cylinder, the movable bolt advances to eject and remove the piston pin main body part, the time-saving and labor-saving operation method is simple, and the device is worthy of being popularized widely.

Drawings

Fig. 1 is a front view structural diagram of a press-mounting and dismounting device of an engine piston pin, which is provided by the utility model;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is a partially enlarged view of B in fig. 1.

Illustration of the drawings:

1. a base; 2. a first clamping cylinder; 3. a nut seat; 4. a sleeve seat; 5. a telescopic cylinder; 6. a telescopic rod; 7. a telescopic base; 8. an electric motor; 9. a movable bolt; 10. a connecting rod; 11. a piston pin body; 12. a piston; 13. a second clamping cylinder; 14. a lead screw body; 15. a cylinder; 16. a gear; 17. rotating the motor; 18. a connecting plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides an embodiment: the press disassembly device of the engine piston pin comprises a base 1, wherein a first clamping cylinder 13 is fixedly connected to the outer surface of the top of the base 1; a connecting plate 18 is fixedly arranged in the base 1, the inner side wall of the connecting plate 18 is movably connected with a lead screw main body 14, the outer side wall of the lead screw main body 14 is movably sleeved with a nut seat 3, and the outer surface of the top of the nut seat 3 is fixedly connected with a second clamping cylinder 2; a piston main body 12 is arranged between the first clamping cylinder 13 and the second clamping cylinder 2, a connecting rod 10 is connected to the inner side wall of the piston main body 12, and a piston pin main body 11 is arranged between the connecting rod 10 and the piston main body 12; a sleeve seat 4 is fixedly connected to the outer surface of the top of the base 1 and located on one side of the second clamping cylinder 2, a telescopic cylinder 5 is fixedly mounted on the inner wall of the bottom of the sleeve seat 4, and a telescopic rod 6 is fixedly connected to the top of a telescopic shaft of the telescopic cylinder 5; a rotating motor 17 is arranged at the rear side of the telescopic rod 6, a gear 16 is fixedly sleeved on the outer side wall of an output shaft of the rotating motor 17, and a telescopic seat 7 is movably connected at the position, corresponding to the gear 16, of the inner side wall of the telescopic rod 6; the outer surface of the top of the telescopic seat 7 is fixedly provided with a motor 8, and one side of an output shaft of the motor 8 is fixedly connected with a movable bolt 9; the inner side wall of the telescopic rod 6 is fixedly sleeved with a cylinder 15 at a position corresponding to the movable bolt 9.

Fixed connection mutually through the welding between first clamping section of thick bamboo 13 and the base 1, and be symmetrical distribution between first clamping section of thick bamboo 13 and the second clamping section of thick bamboo 2, be convenient for press from both sides tight fixedly to piston main part 12 of equidimension not, base 1 one side has seted up the rotation connecting hole with the corresponding position of lead screw main part 14, be convenient for the rotation of lead screw main part 14 to be connected, the center of piston pin main part 11 is in on the same straight line with movable bolt 9's center, be convenient for carry out ejecting demolising piston pin main part 11, rack structure has been seted up to telescopic base 7 bottom and the corresponding position of gear 16, and intermeshing between telescopic base 7 and the gear 16, be convenient for drive telescopic base 7 and stretch out and draw back, looks threaded connection between drum 15 and the movable bolt 9, be convenient for the regulation to.

The working principle is as follows: the press-disassembly device of the engine piston pin and the traditional device provided by the utility model are greatly improved and innovated, in using the press-attaching and detaching apparatus for an engine piston pin, first, the piston main body 12 is placed between the first clamping cylinder 13 and the second clamping cylinder 2, the lead screw main body 14 is rotated so that the nut socket 3 is moved on the lead screw main body 14, namely, the second clamping cylinder 2 is driven to move to clamp and fix the piston main body 12, the telescopic cylinder 5 is started, the telescopic shaft of the telescopic cylinder 5 drives the telescopic rod 6 to extend and retract, the center of the movable bolt 9 is matched with the center of the piston pin main body 11, then the rotating motor 17 and the motor 8 are started simultaneously, the output shaft of the rotating motor 17 drives the gear 16 to rotate, so that the telescopic seat 7 moves forwards, and the output shaft of the motor 8 drives the movable bolt 9 to move forwards in the cylinder 15, the moving speeds of the movable bolt and the cylinder are matched, and the piston pin main body 11 is ejected out and removed by the movable bolt 9.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides an engine piston pin's dismouting is put, includes base (1), its characterized in that: the outer surface of the top of the base (1) is fixedly connected with a first clamping cylinder (13);

a connecting plate (18) is fixedly installed inside the base (1), the inner side wall of the connecting plate (18) is movably connected with a lead screw main body (14), the outer side wall of the lead screw main body (14) is movably sleeved with a nut seat (3), and the outer surface of the top of the nut seat (3) is fixedly connected with a second clamping cylinder (2);

a piston main body (12) is arranged between the first clamping cylinder (13) and the second clamping cylinder (2), a connecting rod (10) is connected to the inner side wall of the piston main body (12), and a piston pin main body (11) is arranged between the connecting rod (10) and the piston main body (12);

a sleeve seat (4) is fixedly connected to the outer surface of the top of the base (1) and located on one side of the second clamping cylinder (2), a telescopic cylinder (5) is fixedly mounted on the inner wall of the bottom of the sleeve seat (4), and a telescopic rod (6) is fixedly connected to the top of a telescopic shaft of the telescopic cylinder (5);

a rotating motor (17) is arranged on the rear side of the telescopic rod (6), a gear (16) is fixedly sleeved on the outer side wall of an output shaft of the rotating motor (17), and a telescopic seat (7) is movably connected to the position, corresponding to the gear (16), of the inner side wall of the telescopic rod (6);

the outer surface of the top of the telescopic seat (7) is fixedly provided with a motor (8), and one side of an output shaft of the motor (8) is fixedly connected with a movable bolt (9);

and a cylinder (15) is fixedly sleeved at the position of the inner side wall of the telescopic rod (6) corresponding to the movable bolt (9).

2. The press-on/off device for an engine piston pin according to claim 1, characterized in that: the first clamping cylinder (13) is fixedly connected with the base (1) through welding, and the first clamping cylinder (13) and the second clamping cylinder (2) are symmetrically distributed.

3. The press-on/off device for an engine piston pin according to claim 1, characterized in that: and a rotary connecting hole is formed in one side of the base (1) and corresponds to the lead screw main body (14).

4. The press-on/off device for an engine piston pin according to claim 1, characterized in that: the center of the piston pin main body (11) and the center of the movable bolt (9) are on the same straight line.

5. The press-on/off device for an engine piston pin according to claim 1, characterized in that: the bottom of the telescopic seat (7) is provided with a rack structure corresponding to the gear (16), and the telescopic seat (7) and the gear (16) are meshed with each other.

6. The press-on/off device for an engine piston pin according to claim 1, characterized in that: the cylinder (15) is in threaded connection with the movable bolt (9).