Crank arm mechanism of integrated signal panel

Abstract

The utility model discloses a crank arm mechanism of an integrated signal panel, belongs to the technical field of engine cranks, and solves the problem that an existing crankshaft and signal panel arrangement structure occupies a large space. The crank arm mechanism comprises a front end shaft, a signal panel used for determining the position and the rotating angle of a crankshaft is arranged on one side of the front end shaft, a plurality of signal teeth are arranged on the outer edge of the signal panel, a crank pin is arranged on the side, away from the front end shaft, of the signal panel, a connecting rod is rotationally connected to the crank pin, and the upper end of the connecting rod is connected with a compressor piston. A plurality of weight reduction grooves are formed in the two sides of the upper end of the signal panel, a balancing weight is arranged on a semicircle of the lower portion of the signal panel, and the other side of the front end shaft is connected with a crank arm of the crankshaft. The crank arm mechanism of the integrated signal panel is high in integration level, the whole structure is effectively shortened, installation in a narrow space is facilitated, meanwhile, the crank arm mechanism has the capacity of balancing rotation inertia force and reciprocating inertia force of a piston, and the stability of crankshaft operation is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of engine cranks, in particular to a crank arm mechanism with an integrated signal disk. Background Art

[0002] As the engine of a vehicle, the internal combustion engine has the characteristics of stable performance and a large number of users. The engine occupies an important part in the vehicle. Improving the performance of the engine, improving its structure, and optimizing the peripheral transmission structure are all important directions for continuous research and development in this field. In the existing engine, the crankshaft and the speed signal disk (signal ring gear) are installed separately, and the speed signal disk is generally installed at the front or rear end of the body. Both of these methods require the addition of a speed sensor fixing bracket on certain parts at the front or rear end of the body. At the same time, the existing connecting rod that drives the compressor is usually arranged on the crankshaft. The piston that drives the compressor will generate an eccentric force on the crankshaft, causing the crankshaft to be unevenly stressed. There is no balancing structure on the crankshaft, resulting in poor stability of the crankshaft. In addition, such an arrangement increases the complexity of the engine structure, occupies a certain space, affects the arrangement of other accessories, increases the difficulty of arrangement, and weakens the versatility of components, and cannot be eliminated. Utility Model Content

[0003] The technical problem to be solved by the present invention is to address the above-mentioned deficiencies in the prior art and to provide a crank arm mechanism with an integrated signal disk, which has a high degree of integration, effectively shortens the overall structure, and is convenient for installation in a narrow space. At the same time, it has the ability to balance the reciprocating inertia force of the piston, thereby improving the stability of the crankshaft operation, and is easy to use and highly practical.

[0004] The technical solution adopted by the utility model is: a crank arm mechanism with an integrated signal disk, comprising a front end shaft, a signal disk for determining the position and rotation angle of the crankshaft is provided on one side of the front end shaft, a plurality of signal teeth are provided on the outer extension of the signal disk, a crank pin is provided on the side of the signal disk away from the front end shaft, a connecting rod is rotatably connected to the crank pin, the upper end of the connecting rod is connected to the compressor piston, a plurality of weight-reducing grooves are provided on both sides of the upper end of the signal disk, a counterweight block is provided on the lower semicircle of the signal disk, and the other side of the front end shaft is connected to the crank arm of the crankshaft.

[0005] As a further improvement, the crank pin is eccentrically arranged on the signal disk.

[0006] Furthermore, the connecting rod is rotatably mounted on the crank pin via a needle bearing, and the outer end of the crank pin is provided with a washer and a locking screw for preventing the needle bearing from axially moving.

[0007] Furthermore, the signal disk has a structure that is thin at the top and thick at the bottom, and the thickness of the signal disk gradually increases from top to bottom.

[0008] Furthermore, the weight-reducing groove is an arc-shaped long slot hole, the number of the weight-reducing grooves is two, and the two weight-reducing grooves are symmetrically arranged.

[0009] Furthermore, the connecting rod and the crank arm of the crankshaft are arranged perpendicular to each other.

[0010] Furthermore, the counterweight, signal disc and signal tooth are an integrated structure.

[0011] Beneficial effects

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] The utility model provides a crank arm mechanism with an integrated signal disk. When the engine crankshaft rotates, the signal disk is driven to rotate. The signal disk has a weight-reducing groove on its upper side and a counterweight block on its lower end, so that the signal disk has a light upper part and a heavy lower part structure. After movement, an eccentric force is generated. The eccentric force generated by the signal disk and the eccentric force generated by the movement of the compressor piston are on the same line, which just balances the centrifugal force of the crankpin movement. At the same time, it can balance the reciprocating inertia force of the connecting rod and the piston, thereby improving the stability of the crankshaft operation. While acting as a signal disk, it also acts as a crank arm, which is equivalent to integrating the crank arm and the signal disk together. While ensuring the stable operation of the crankshaft, the installation requirement of one crank arm is reduced, thereby shortening the structure, making the structures more compact, reducing the arrangement of components around the engine, optimizing the installation space of the engine, and also reducing the use of components, and effectively reducing production costs, realizing lightweight manufacturing, and having the characteristics of easy use and wide application range. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 It is a side structural schematic diagram of the present utility model.

[0016] Among them: 1-front end shaft, 2-signal plate, 3-signal tooth, 4-crank pin, 5-weight reduction groove, 6-counterweight block, 7-crank arm, 8-connecting rod, 9-compressor piston, 10-gasket, 11-locking screw, 12-crankshaft, 13-balance block. DETAILED DESCRIPTION

[0017] The present invention will be further described below with reference to the specific embodiments in the accompanying drawings.

[0018] See Figure 1-2As shown, the utility model is a crank arm mechanism with an integrated signal disk, including a front end shaft 1, a signal disk 2 for determining the position and rotation angle of the crankshaft is provided on one side of the front end shaft 1, a plurality of signal teeth 3 are provided on the outer extension of the signal disk 2, a crank pin 4 is provided on the side of the signal disk away from the front end shaft 1, a connecting rod 8 is rotatably connected to the crank pin 4, the upper end of the connecting rod 8 is connected to the compressor piston 9, a plurality of weight reduction grooves 5 are opened on both sides of the upper end of the signal disk 2, a counterweight block 6 is provided on the lower semicircle of the signal disk 2, and the other side of the front end shaft 1 is connected to the crank arm 7 of the crankshaft 12. When the engine crankshaft rotates, the signal disk 2 is driven to rotate. The signal disk 2 has a weight reduction groove 5 opened on its upper side and a counterweight block 6 is added at the lower end, so that the signal disk 2 has a light upper and heavy lower structure. , after movement, eccentric force is generated. The eccentric force generated by the signal disk 2 and the eccentric force generated by the movement of the compressor piston are in the same straight line, which just balances the centrifugal force of the crank pin 4 movement. At the same time, it can balance the reciprocating inertia force of the connecting rod 8 and the compressor piston 9, thereby improving the stability of the crankshaft 12 operation. While acting as the signal disk 2, it also acts as a crank arm, which is equivalent to integrating the crank arm and the signal disk together. While ensuring the stable operation of the crankshaft 12, the installation requirement of one crank arm is reduced, thereby shortening the structure, making the structures more compact, reducing the layout of components around the engine, optimizing the installation space of the engine, and also reducing the use of components, effectively reducing production costs, and realizing lightweight manufacturing.

[0019] Specifically, the crank pin 4 is eccentrically arranged on the signal disk 2, so that when the signal disk 2 rotates, the crank pin 4 can drive the connecting rod 8 to move, and the connecting rod 8 drives the compressor piston 9 to perform reciprocating motion, thereby realizing the work of the compressor. This structural connection structure is integrated on the signal disk 2. Compared with the traditional connection with the crankshaft 12, this structure is more compact, has a smaller installation space, is lighter, and saves manufacturing costs.

[0020] Preferably, the connecting rod 8 is rotatably mounted on the crank pin 4 through a needle bearing. The outer end of the crank pin 4 is provided with a gasket 10 and a locking screw 11 for preventing axial movement of the needle bearing. The needle bearing makes the rotation of the connecting rod 8 smoother. The gasket 10 and the locking screw 11 are used for locking, which facilitates the installation and later replacement of the bearing and prevents the needle bearing from falling off.

[0021] Furthermore, the signal disk 2 has a thin top and thick bottom structure, and the thickness of the signal disk 2 gradually increases from top to bottom, so that the signal disk 2 can play the role of installing a balance block 13 on the crank arm 7, so that the signal disk 2 can balance the centrifugal force of the movement of the crank pin 4, making the crankshaft 12 run more smoothly.

[0022] Furthermore, the weight-reducing groove 5 is an arc-shaped long slot hole, and there are two weight-reducing grooves 5 , which are symmetrically arranged. The symmetrically arranged weight-reducing grooves 5 make the mass point of the signal disk 2 on the center line, allowing the signal disk 2 to better play a balancing role.

[0023] Furthermore, the connecting rod 8 and the crank arm 7 of the crankshaft are arranged perpendicular to each other, ensuring that the direction of the connecting rod 8's up and down movement corresponds to the downward deviation of the signal disk 2, ensuring that the signal disk 2 can successfully balance the reciprocating inertia force of the connecting rod 8 and the compressor piston 9.

[0024] Furthermore, the counterweight 6, the signal disc 2 and the signal tooth 3 are an integrated structure, which is convenient for production and manufacturing, reduces stress concentration and avoids cracking in the later stage.

[0025] When the crank arm mechanism with an integrated signal disk of this embodiment is in use, the signal disk 2 is driven to rotate when the engine crankshaft rotates. The signal disk 2 has a weight-reducing groove 5 on its upper side and a counterweight block 6 on its lower end, so that the signal disk 2 has a light upper part and a heavy lower part structure. After movement, an eccentric force is generated. The eccentric force generated by the signal disk 2 is in the same straight line as the eccentric force generated by the movement of the compressor piston, which just balances the centrifugal force of the crank pin 4 movement. At the same time, it can balance the reciprocating inertia force of the connecting rod 8 and the compressor piston 9, thereby improving the stability of the operation of the crankshaft 12. While acting as the signal disk 2, it also acts as a crank arm, which is equivalent to integrating the crank arm and the signal disk. While ensuring the stable operation of the crankshaft 12, the installation requirement of one crank arm is reduced, thereby shortening the structure, making the structures more compact, reducing the layout of the components around the engine, optimizing the installation space of the engine, and also reducing the use of components, effectively reducing production costs, and realizing lightweight manufacturing. The utility model provides a crank arm mechanism with an integrated signal disk, which has a high degree of integration, effectively shortens the overall structure, and is easy to install in a small space. At the same time, it has the ability to balance the reciprocating inertia force of the piston, improves the stability of the crankshaft operation, and is easy to use and highly practical.

[0026] The above is only a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention. These modifications and improvements will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. A crank arm mechanism with an integrated signal plate, characterized in that: The invention comprises a front end shaft (1), wherein one side of the front end shaft (1) is provided with a signal disk (2) for determining the crankshaft position and rotation angle, the signal disk (2) is provided with a plurality of signal teeth (3) on the outer extension, a crank pin (4) is provided on the side of the signal disk away from the front end shaft (1), a connecting rod (8) is rotatably connected to the crank pin (4), the upper end of the connecting rod (8) is connected to the compressor piston (9), a plurality of weight reduction grooves (5) are provided on both sides of the upper end of the signal disk (2), a counterweight block (6) is provided on the lower semicircle of the signal disk (2), and the other side of the front end shaft (1) is connected to the crank arm (7) of the crankshaft (12).

2. The crank arm mechanism with integrated signal plate according to claim 1, characterized in that: The crank pin (4) is eccentrically arranged on the signal disk (2).

3. The crank arm mechanism with integrated signal plate according to claim 2, characterized in that: The connecting rod (8) is rotatably mounted on the crank pin (4) via a needle bearing. The outer end of the crank pin (4) is provided with a washer (10) and a locking screw (11) for preventing the needle bearing from axially moving.

4. The crank arm mechanism with integrated signal plate according to claim 1, characterized in that: The signal disk (2) is a structure that is thin at the top and thick at the bottom, and the thickness of the signal disk (2) gradually increases from the top to the bottom.

5. The crank arm mechanism with integrated signal plate according to claim 1, characterized in that: The weight-reducing groove (5) is an arc-shaped long slot hole, and there are two weight-reducing grooves (5). The two weight-reducing grooves (5) are symmetrically arranged.

6. The crank arm mechanism with integrated signal plate according to claim 1, characterized in that: The connecting rod (8) and the crank arm (7) of the crankshaft are arranged perpendicular to each other.

7. The crank arm mechanism with integrated signal plate according to claim 1, characterized in that: The counterweight (6), signal disc (2) and signal tooth (3) are an integrated structure.

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