CN211576553U - Engine piston main and auxiliary connecting rod direction detection device - Google Patents

Abstract

The utility model discloses a device for detecting the direction of the main and auxiliary connecting rods of an engine piston, which comprises a limit seat, a crankshaft and a connecting rod. A fixing block is integrally formed on both sides of the lower end of the connecting rod, and the crankshaft comprises a main journal, a connecting rod and a connecting rod. The neck, the first balance block, and the second balance block, and the connecting rod neck is rotatably connected between the first balance block and the second balance block. The springs are fixedly installed with an abutment seat, and the abutment seat is slidably installed on the connecting rod neck, a fixed structure is installed between the connecting rod and the connecting rod neck, and a lifting seat is installed in the limit seat through the sliding structure, so A plunger is rotatably connected to the lift seat, and a sealing ring is sleeved on the plunger. The advantages are: the disassembly and assembly of the connecting rod is simple, time-saving and labor-saving, and the disassembly and assembly operation can be completed by directly driving the connecting rod to move by hand, which makes the direction detection operation easier and improves the detection efficiency of the direction of the connecting rod. efficiency.

Description

Engine piston main and auxiliary connecting rod direction detection device

technical field

The utility model relates to a connecting rod detection device, in particular to a detection device for the direction of the main and auxiliary connecting rods of an engine piston.

Background technique

The function of the main and auxiliary connecting rods of the engine piston is to connect the piston and the crankshaft, which is used to convert the reciprocating motion of the piston into the rotational motion of the crankshaft; the connecting rod and the piston are measured by specific gravity, the opening angle of the valve is different, and the connecting rod is installed reversely It will affect the opening angle and counterweight of the valve, so the direction of the connecting rod during installation is very important.

Although most of the connecting rods are marked with the installation direction at present, there are still some connecting rods that do not have the installation direction (on the one hand, the direction of the connecting rod is not marked during production, and on the other hand, the direction marked with long-term use is worn out), For the connecting rod without direction marking, a special direction detection device will be used to detect the direction of the connecting rod;

The existing connecting rod direction detection device also has the following shortcomings: the fixing operation of the connecting rod in the device is cumbersome, and the lower end of the connecting rod needs to be fixed by bolts through the fixing block, which takes a long time to disassemble and assemble. Thus, the efficiency of direction detection is reduced.

Utility model content

The purpose of this utility model is to solve the problems raised in the background technology, and proposes a device for detecting the direction of the main and auxiliary connecting rods of the engine piston.

In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

The device for detecting the direction of the main and auxiliary connecting rods of the engine piston includes a limit seat, a crankshaft and a connecting rod. A fixed block is integrally formed on both sides of the lower end of the connecting rod. The crankshaft includes a main journal, a connecting rod journal, and a balance block. , Balance block 2, and the connecting rod neck is rotatably connected between the balance block 1 and the balance block 2. The side of the balance block 2 close to the balance block 1 is fixedly installed with a plurality of springs, and a plurality of the springs are fixedly installed together. abutting seat, and the abutting seat is slidably installed on the connecting rod neck, a fixed structure is installed between the connecting rod and the connecting rod neck, a lifting seat is installed in the limiting seat through the sliding structure, and the lifting seat rotates A plunger is connected, and a sealing ring is sleeved on the plunger.

In the above-mentioned device for detecting the direction of the main and auxiliary connecting rods of the engine piston, the abutment has a sliding hole matched with the connecting rod neck, and the inner wall of the sliding hole is fixedly affixed with a rubber sleeve.

In the above-mentioned device for detecting the direction of the main and auxiliary connecting rods of the engine piston, the fixing structure is composed of two fixing seats and two fixing grooves, and one fixing seat is fixedly installed on both sides of the connecting rod neck, and the two One side of the fixing base close to the second balance block is provided with a fixing groove matched with the fixing block.

In the above-mentioned device for detecting the direction of the main and auxiliary connecting rods of the engine piston, the sliding structure is composed of two bar-shaped sliding grooves and two bar-shaped sliding blocks, and two bar-shaped sliding grooves are opened on the inner wall of the limit seat. , a bar-shaped slider matched with the bar-shaped chute is fixedly installed on the outer walls of both sides of the lifting seat.

In the above-mentioned device for detecting the direction of the main and auxiliary connecting rods of the engine piston, rollers are rotatably connected to the ends of the two bar-shaped sliders away from each other, and the rollers are in contact with the inner wall of the corresponding bar-shaped chute.

Compared with the existing technology, the utility model has the advantages of:

1: The disassembly and assembly of the connecting rod is simple, time-saving and labor-saving. The disassembly and assembly operation can be completed by directly driving the connecting rod to move by hand, which makes the direction detection operation easier and improves the efficiency of the direction detection of the connecting rod. .

2: The connecting rod neck is rotatably connected between the balance block 1 and the balance block 2, the purpose is to facilitate the simulation of the movement of the connecting rod in the piston, and to make the disassembly and assembly of the connecting rod easier.

3: The purpose of setting the rubber sleeve, roller and sealing ring is to reduce the contact and wear and improve the service life.

Description of drawings

1 is a schematic structural diagram of a device for detecting the direction of the main and auxiliary connecting rods of an engine piston proposed by the utility model;

Fig. 2 is the structural side view of the connecting rod part in Fig. 1;

Fig. 3 is the structural side view of the connecting rod in Fig. 1;

Fig. 4 is the structural enlargement schematic diagram of A part in Fig. 1;

FIG. 5 is an enlarged schematic view of the structure of part B in FIG. 2 .

In the picture: 1 limit seat, 2 main journal, 3 connecting rod journal, 4 balance block 1, 5 balance block 2, 6 spring, 7 seat, 8 connecting rod, 9 fixing seat, 10 fixing slot, 11 fixing block, 12 lift seat, 13 insert rod, 14 bar-shaped chute, 15 bar-shaped slider, 16 rubber sleeve.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

1-5, the device for detecting the direction of the main and auxiliary connecting rods of the engine piston includes a limit seat 1, a crankshaft and a connecting rod 8. A fixed block 11 is integrally formed on both sides of the lower end of the connecting rod 8.

The crankshaft includes a main journal 2, a connecting rod journal 3, a balance block 1 4, and a balance block 2 5, and the connecting rod journal 3 is rotatably connected between the balance block 1 4 and the balance block 2 5. The traditional crankshaft upper connecting rod journal 3 It is fixedly connected between the balance block one 4 and the balance block two 5, and here it is set as a rotary connection, the purpose is to facilitate the simulation of the movement of the connecting rod 8 in the piston, and make the disassembly and assembly operation of the connecting rod more convenient. Simple.

A plurality of springs 6 are fixedly installed on the side of the balance block 2 5 close to the balance block 1 4 , and the abutment base 7 is fixedly installed with the plurality of springs 6 , and the abutment base 7 is slidably installed on the connecting rod neck 3 , and the abutment seat 7 has a A sliding hole matched with the connecting rod neck 3;

It is worth noting that: the inner wall of the sliding hole is fixed and pasted with a rubber sleeve 16. The setting of the rubber sleeve 16 is used to prevent the inner wall of the sliding hole from directly contacting the outer wall of the connecting rod neck 3, and use its elasticity to reduce the sliding process under the premise of satisfying normal sliding. wear in.

A fixing structure is installed between the connecting rod 8 and the connecting rod neck 3. The fixing structure is composed of two fixing seats 9 and two fixing grooves 10. A fixing seat 9 is fixedly installed on both sides of the connecting rod neck 3, and two fixing bases 9 are fixed. One side of the seat 9 close to the second balance block 5 is provided with a fixing groove 10 matched with the fixing block 11;

A lift seat 12 is installed in the limit seat 1 through a sliding structure. The sliding structure is composed of two bar-shaped sliding grooves 14 and two bar-shaped sliding blocks 15. Two bar-shaped sliding grooves are opened on the inner wall of the limiting seat 1 14. A bar-shaped slider 15 matched with the bar-shaped chute 14 is fixedly installed on both outer walls of the lifting seat 12;

There are two points worth noting:

1. The bar-shaped chute 14 has a limiting effect on the bar-shaped slider 15, so that the bar-shaped slider 15 can only move up and down in the vertical direction, so that the lifting seat 12 can only be moved in the vertical direction. slide.

2. The ends of the two bar-shaped sliders 15 away from each other are rotatably connected with rollers, and the rollers are in contact with the inner wall of the corresponding bar-shaped chute 14. The purpose of setting the rotatable rollers is to make the bar-shaped sliders 15 The friction with the bar-shaped chute 14 is rolling friction, the wear between the two is low, and the resistance received during the movement is small.

The lift seat 12 is rotatably connected with an insertion rod 13, and the through hole of the upper end of the connecting rod 8 can be engaged with the insertion rod 13 during the movement process, so that the lifting seat 12 can drive the connecting rod 8 to vertically move through the insertion rod 13. Moving in the direction, a sealing ring is sleeved on the insertion rod 13 , and the sealing ring can use its elasticity to reduce the wear when the insertion rod 13 is in contact with the through hole at the upper end of the connecting rod 8 .

It is further stated that the above-mentioned fixed connection should be understood in a broad sense unless otherwise specified and limited. For example, it may be welding, gluing, or a conventional means known to those skilled in the art, such as integral molding.

In the present utility model, the state shown in FIG. 1 is the state in which the connecting rod 8 has been fixedly installed. When the connecting rod 8 needs to be removed, a force to the right (compressing the abutment 7 ) can be directly applied to the connecting rod 8 , the connecting rod 8 moves to the right to drive the fixing block 11 to move out of the fixing slot 10, and the connecting rod 8 moves to the right to drive its upper end part to separate from the insertion rod 13, so that the connecting rod 8 is disassembled; 7 Apply a squeezing force (you can directly apply the force by hand or use the connecting rod 8 to exert the force), while squeezing the abutment 7, place the connecting rod 8 on the connecting rod 3, so that the lower end part of the connecting rod 3 is connected to the connecting rod 3. fit, and then move the connecting rod 8 to move the fixed block 11 into the corresponding fixed seat 9, so that the insertion rod 13 passes through the through hole at the upper end of the connecting rod 8, if the abutment 7 is squeezed by hand, when the connecting rod 8 After the movement is completed, the pressing force applied to the abutment 7 needs to be removed.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. Equivalent replacement or modification of the new technical solution and its utility model concept shall be included within the protection scope of the present utility model.

Claims (5)

1. The device for detecting the direction of the main and auxiliary connecting rods of the engine piston comprises a limiting seat (1), a crankshaft and a connecting rod (8), wherein a fixing block (11) is integrally formed on two sides of the lower end of the connecting rod (8), and is characterized in that the crankshaft comprises a main journal (2), a connecting rod neck (3), a first balance block (4) and a second balance block (5), the connecting rod neck (3) is rotatably connected between the first balance block (4) and the second balance block (5), one side, close to the first balance block (4), of the second balance block (5) is fixedly provided with a plurality of springs (6), the springs (6) are jointly and fixedly provided with a supporting seat (7), the supporting seat (7) is slidably arranged on the connecting rod neck (3), a fixing structure is arranged between the connecting rod (8) and the connecting rod neck (3), and a lifting seat (12) is arranged in the limiting seat (1) through, the lifting seat (12) is connected with an inserted bar (13) in a rotating mode, and a sealing ring is sleeved on the inserted bar (13).

2. The device for detecting the direction of the main and auxiliary connecting rods of the engine piston as claimed in claim 1, wherein the abutting seat (7) is provided with a sliding hole matched with the connecting rod neck (3), and a rubber sleeve (16) is fixedly adhered to the inner wall of the sliding hole.

3. The device for detecting the direction of the main and auxiliary connecting rods of the engine piston as claimed in claim 1, wherein the fixing structure is composed of two fixing seats (9) and two fixing grooves (10), one fixing seat (9) is fixedly installed on each side of the connecting rod neck (3), and one fixing groove (10) matched with the fixing block (11) is formed in each side, close to the second balance block (5), of each fixing seat (9).

4. The device for detecting the direction of the main connecting rod and the auxiliary connecting rod of the engine piston according to claim 1, wherein the sliding structure consists of two strip-shaped sliding grooves (14) and two strip-shaped sliding blocks (15), the inner wall of the limiting seat (1) is provided with the two strip-shaped sliding grooves (14), and the outer walls of two sides of the lifting seat (12) are fixedly provided with the strip-shaped sliding blocks (15) matched with the strip-shaped sliding grooves (14).

5. The device for detecting the direction of the main connecting rod and the auxiliary connecting rod of the engine piston as claimed in claim 4, wherein the ends of the two strip-shaped sliding blocks (15) far away from each other are rotatably connected with rollers, and the rollers are in contact with the inner walls of the corresponding strip-shaped sliding grooves (14).

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