CN220060377U

CN220060377U - Crankshaft balance block

Info

Publication number: CN220060377U
Application number: CN202320872902.9U
Authority: CN
Inventors: 王森
Original assignee: Hai'an Bingtian Crankshaft Co ltd
Current assignee: Hai'an Bingtian Crankshaft Co ltd
Priority date: 2023-04-19
Filing date: 2023-04-19
Publication date: 2023-11-21
Anticipated expiration: 2033-04-19

Abstract

The utility model discloses a crankshaft balance block, relates to the technical field of crankshaft balance blocks, and solves the technical problems that at present, due to the fact that a crankshaft rotates at a high speed, an elastic insert sheet easily causes the phenomenon of self-deflection after being used, limiting setting for limiting the crankshaft is not arranged, and certain potential safety hazards exist; the novel crank comprises a crank body, wherein an eccentric block is fixedly arranged at the top end of the crank body, an eccentric column is fixedly arranged at one side of the top end of the eccentric block, two sides of the top end of the eccentric column are connected with a balance block body through clamping blocks in a clamping mode, a rectangular groove is formed in the balance block body, a limiting assembly is arranged in the rectangular groove and comprises a limiting rod, a moving plate, a first spring, a first rack and a toggle plate, and the limiting rod is slidably connected in the rectangular groove; the utility model is convenient for installing the balance weight main body, avoids the offset condition after use and reduces certain potential safety hazard.

Description

Crankshaft balance block

Technical Field

The utility model relates to the technical field of crankshaft balances, in particular to a crankshaft balance.

Background

The crankshaft is one of the most critical parts in the engine, and it cooperates with the connecting rod to convert the gas pressure acting on the piston into rotary power, which is transmitted to the chassis transmission mechanism, and at the same time drives the valve train and other auxiliary devices. In the prior art, the crankshaft comprises a main journal, a connecting rod journal, a balance weight and a crank arm. The crankshaft bears explosion pressure, reciprocating inertia force and rotary inertia force, so that the crankshaft bearing condition is very complex, the bending deformation of the crankshaft is serious, unbalanced rotation and vibration are very obvious, and the balance weight plays roles of maintaining balance and reducing rotation non-uniformity.

According to the crankshaft balance block mounting structure provided by Chinese patent grant publication No. CN201520587913.8, the crankshaft balance block mounting structure has the advantages of convenience in dismounting the balance block, high dismounting efficiency, low mounting cost and stable and reliable operation after mounting; however, in the practical use process, the device still has a place to be improved, when the device is used, because the crankshaft rotates at a high speed, the elastic insert sheet easily causes the phenomenon that the elastic insert sheet deflects after being used, and the device is not provided with limiting setting for limiting the elastic insert sheet, so that certain potential safety hazard exists.

A crankshaft balance block is designed for solving the problems.

Disclosure of Invention

The utility model provides a crankshaft balance block, which solves the technical problems that the crankshaft rotates at a high speed, an elastic insert sheet easily causes the phenomenon of self-deflection after being used, the crankshaft balance block is not provided with limiting arrangement for limiting the crankshaft, and certain potential safety hazard exists.

In order to solve the technical problems, the crankshaft balance block provided by the utility model comprises a crankshaft main body, wherein the top end of the crankshaft main body is fixedly provided with an eccentric block, one side of the top end of the eccentric block is fixedly provided with an eccentric column, two sides of the top end of the eccentric column are connected with a balance block main body through clamping blocks in a clamping manner, a rectangular groove is formed in the balance block main body, a limiting assembly is arranged in the rectangular groove, the limiting assembly comprises a limiting rod, a moving plate, a first spring, a first rack and a stirring plate, the limiting rod is slidably connected in the rectangular groove, a limiting hole matched with the limiting rod is formed in the eccentric column, one end of the limiting rod is fixedly provided with a moving plate, one side of the moving plate is fixedly provided with a first spring, one side of the top end of the limiting rod is fixedly provided with a first rack, one side of the top end of the moving plate is fixedly provided with a stirring plate, the inside of the rectangular groove is slidably connected with the moving rod, the bottom end of the moving rod is fixedly provided with a transverse plate, and the bottom end of the transverse plate is fixedly provided with a second rack, and the first rack is meshed with the second rack.

Preferably, the top end of the moving rod penetrates through the balance block main body and is fixedly connected with a pull cap arranged at the top of the balance block main body.

Preferably, one end of the first spring is fixedly connected with the left side of the inner wall of the rectangular groove, and a limit ring is fixedly arranged at the top of the eccentric column.

Preferably, the surface activity of movable rod has cup jointed the second spring, the top fixed connection of one end and diaphragm of second spring, the other end and the inner wall fixed connection of rectangular channel of second spring.

Preferably, the top end of the poking plate penetrates through the balance block main body and is arranged outside the balance block main body, and a moving groove corresponding to the poking plate is formed in the surface of the balance block main body.

Preferably, the bottom fixed mounting of movable plate has the slider, the spout with slider assorted is seted up to the bottom of rectangular channel inner wall.

Compared with the related art, the crankshaft balance block provided by the utility model has the following beneficial effects:

the utility model provides a crankshaft balance block, which is characterized in that a moving rod and a second rack are driven to be lifted through lifting of a set pull cap, a limiting assembly is matched, a toggle plate drives the moving plate to move in the horizontal direction, the limiting rod is retracted into the rectangular groove, the set pull cap is loosened, a first rack and the second rack are mutually meshed and connected under the action of a second spring to limit the limiting rod, then a clamping block is matched, a balance block main body is matched with the clamping block to be mutually clamped and connected with an eccentric column, the set pull cap is loosened, the limiting rod is reset under the action of the second spring and the first spring, the balance block main body is convenient to install, the offset condition is avoided after the balance block main body is used, and certain potential safety hazards are reduced.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of the present utility model;

FIG. 3 is an enlarged schematic view of the structure of the present utility model A;

fig. 4 is an enlarged schematic view of the structure of the present utility model at B.

Reference numerals in the drawings: 1. a crankshaft main body; 2. an eccentric block; 3. an eccentric column; 4. a clamping block; 5. a counterweight body; 6. rectangular grooves; 7. a limit component; 71. a limit rod; 72. a moving plate; 73. a first spring; 74. a first rack; 75. a toggle plate; 8. a moving rod; 9. a cross plate; 10. a second rack; 11. a second spring; 12. a slide block; 13. pulling the cap; 14. a moving groove; 15. and a limit ring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model; all other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, a crankshaft balance block comprises a crankshaft main body 1, an eccentric block 2 is fixedly installed at the top end of the crankshaft main body 1, an eccentric column 3 is fixedly installed at one side of the top end of the eccentric block 2, two sides of the top end of the eccentric column 3 are connected with a balance block main body 5 through clamping blocks 4 in a clamping mode, a rectangular groove 6 is formed in the balance block main body 5, a limiting component 7 is arranged in the rectangular groove 6, the limiting component 7 comprises a limiting rod 71, a moving plate 72, a first spring 73, a first rack 74 and a stirring plate 75, the limiting rod 71 is slidably connected in the rectangular groove 6, a limiting hole matched with the limiting rod 71 is formed in the eccentric column 3, a moving plate 72 is fixedly installed at one end of the limiting rod 71, a first spring 73 is fixedly installed at one side of the top end of the moving plate 72, a stirring plate 75 is fixedly installed at one side of the top end of the moving plate 72, a moving rod 8 is slidably connected with the inside of the rectangular groove 6, a transverse plate 9 is fixedly installed at the bottom end of the moving rod 8, a second rack 10 is fixedly installed at the bottom end of the transverse plate 9, and the first rack 74 is meshed with the second rack 10.

Referring to fig. 3 and 4, the top end of the moving rod 8 passes through the balance weight body 5 and is fixedly connected with a pulling cap 13 arranged at the top of the balance weight body 5, so as to carry out pulling operation on the moving rod 8.

Referring to fig. 3, one end of the first spring 73 is fixedly connected with the left side of the inner wall of the rectangular groove 6, and a limit ring 15 is fixedly installed at the top of the eccentric column 3, and is used for supporting and fixing the first spring 73, playing a role in supporting and rebounding, and playing a role in limiting.

Referring to fig. 3, a second spring 11 is movably sleeved on the surface of the moving rod 8, one end of the second spring 11 is fixedly connected with the top end of the transverse plate 9, and the other end of the second spring 11 is fixedly connected with the inner wall of the rectangular groove 6 and is used for resetting and supporting the moving rod 8.

Referring to fig. 4, the top end of the toggle plate 75 passes through the balance weight body 5 and is disposed outside the balance weight body 5, and a moving slot 14 corresponding to the toggle plate 75 is provided on the surface of the balance weight body 5, so that the toggle plate 75 is not limited in the moving process.

Referring to fig. 3, a sliding block 12 is fixedly mounted at the bottom end of the moving plate 72, and a sliding groove matched with the sliding block 12 is formed at the bottom end of the inner wall of the rectangular groove 6 for playing a role in limiting and guiding.

In summary, in the utility model, the moving rod 8 is lifted by the pulling cap 13, so that the first rack 74 and the second rack 10 which are in meshed connection are separated, then the moving plate 72 is moved in the horizontal direction by moving the set pulling plate 75, so that the limiting rod 71 is retracted into the rectangular groove 6, at the moment, the first rack 74 and the second rack 10 are in meshed connection under the action of the second spring 11 by loosening the set pulling cap 13, then the counterweight main body 5 is matched with the clamping block 4 to be in clamped connection with the eccentric column 3 by matching with the clamping block 4, at the moment, the limiting rod 71 is reset under the action of the second spring 11 and the first spring 73, so that the counterweight main body 5 is convenient to install, the offset condition after use is avoided, and a certain potential safety hazard is reduced.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Crankshaft counterweight, comprising a crankshaft main body (1), characterized in that: the utility model discloses a crank shaft main part (1) top fixed mounting has eccentric block (2), one side fixed mounting on eccentric block (2) top has eccentric post (3), the both sides on eccentric post (3) top are connected with balancing piece main part (5) through fixture block (4) block, the inside of balancing piece main part (5) is equipped with rectangular channel (6), the inside of rectangular channel (6) is equipped with spacing subassembly (7), spacing subassembly (7) are including gag lever post (71), movable plate (72), first spring (73), first rack (74) and stirring board (75), gag lever post (71) sliding connection is in the inside of rectangular channel (6), the inside of eccentric post (3) seted up with gag lever post (71) assorted spacing hole, one end fixed mounting of gag lever post (71) has movable plate (72), one side fixed mounting of movable plate (72) has first spring (73), one side fixed mounting on the top of gag lever post (71) has first rack (74), one side fixed mounting on the top of movable plate (72) has movable plate (8) fixed mounting cross bar (75), the bottom end of the transverse plate (9) is fixedly provided with a second rack (10), and the first rack (74) is meshed with the second rack (10).

2. The crankshaft balance weight according to claim 1, wherein the top end of the moving rod (8) penetrates through the balance weight main body (5) and is fixedly connected with a pull cap (13) arranged at the top of the balance weight main body (5).

3. The crankshaft balance weight according to claim 1, wherein one end of the first spring (73) is fixedly connected with the left side of the inner wall of the rectangular groove (6), and a limit ring (15) is fixedly arranged at the top of the eccentric column (3).

4. The crankshaft balance weight according to claim 1, wherein a second spring (11) is movably sleeved on the surface of the movable rod (8), one end of the second spring (11) is fixedly connected with the top end of the transverse plate (9), and the other end of the second spring (11) is fixedly connected with the inner wall of the rectangular groove (6).

5. The crankshaft balance weight according to claim 1, wherein the top end of the poking plate (75) penetrates through the balance weight main body (5) and is arranged outside the balance weight main body (5), and a moving groove (14) corresponding to the poking plate (75) is formed in the surface of the balance weight main body (5).

6. The crankshaft balance weight according to claim 1, wherein the bottom end of the moving plate (72) is fixedly provided with a sliding block (12), and the bottom end of the inner wall of the rectangular groove (6) is provided with a sliding groove matched with the sliding block (12).