CN214709281U - Brake thrust adjusting device for chain saw - Google Patents
Brake thrust adjusting device for chain saw Download PDFInfo
- Publication number
- CN214709281U CN214709281U CN202120079142.7U CN202120079142U CN214709281U CN 214709281 U CN214709281 U CN 214709281U CN 202120079142 U CN202120079142 U CN 202120079142U CN 214709281 U CN214709281 U CN 214709281U
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- brake
- adjusting screw
- lever
- adjusting
- gasket
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Abstract
The utility model relates to a chain saw equipment field specifically relates to a brake thrust adjusting device for chain saw, including the front end board, the side cap, major-minor lever, the brake control pole, brake spring, the brake area, the gasket, adjusting nut and adjusting screw, adjusting screw is coaxial fixed and sets up in the holding tank one end of keeping away from major-minor lever, adjusting nut locates on adjusting screw soon, the gasket cover is located on adjusting screw, and brake spring's one end supports the gasket tightly on adjusting nut's terminal surface, this device adjusts brake spring (when non-brake state) initial elasticity through the rotatory adjusting screw of appropriate torsion, the uniformity of initial elasticity has been ensured, thereby brake thrust's uniformity has been ensured, safe and reliable. Meanwhile, the device is simple and practical and is very convenient to assemble.
Description
Technical Field
The utility model relates to a chain saw equipment field specifically is a brake thrust adjusting device for chain saw is related to.
Background
The chain saw is a common tool for felling trees, and a chain saw braking device is a device specially arranged for guaranteeing the safety of an operator, and mainly comprises a front baffle plate 1, a side cover 2, a main lever 3, an auxiliary lever 3, a brake control rod 4, a brake spring 5 and the like as shown in figure 1. The front baffle plate 1 is pushed, the brake control rod 4 is pushed by the front baffle plate 1 through the main lever 3 and the auxiliary lever 3, the brake control rod 4 drives the brake spring 5 to compress, so that the brake control rod 4 pushes the brake belt 10, the driven disc is locked, and the brake is realized.
The problem that the brake thrust is unstable is faced by the brake braking detection equipment disclosed in the Chinese utility model patent CN204241244U, and if the brake thrust is low, an operator can automatically brake in the use process, so that the brake braking detection equipment cannot be normally used; if the braking thrust is too large, when the danger is met, the brake cannot be carried out, so that safety accidents can be caused, and casualties can be caused. The size of the elastic force of the spring directly determines the size of the brake thrust, but at present, the original length of the brake spring, the length of the brake control rod and the size of the main lever and the auxiliary lever all have deviation, and the accumulated errors of a plurality of parts are large together, so that the initial elastic force difference of the spring is large, the brake thrust consistency is very poor, and rework is often caused in batch production. At present, the brake spring is pressed into a right side cover groove in an interference manner, so that the operation is difficult and the efficiency is low.
SUMMERY OF THE UTILITY MODEL
First, technical problem to be solved
The utility model discloses an above-mentioned defect to prior art existence especially provides a brake thrust adjusting device for chain saw, has solved the problem that the brake spring that exists can not fine regulation among the current chain saw brake equipment.
Second, technical scheme
In order to solve the technical problem, the utility model provides a brake thrust adjusting device for chain saw, including the front baffle, the side cap, major-minor lever, the brake control pole, brake spring and brake band, the one end of front baffle is articulated with the one end of side cap, be equipped with the holding tank that is used for supplying brake spring to carry out axial expansion on the side cap, major-minor lever is located between the hinged end of brake spring and front baffle, the one end of major-minor lever links to each other with the hinged end of front baffle, the other end is articulated with the one end of brake control pole, the one end that the brake control pole kept away from major-minor lever stretches into in the brake spring along the axial of holding tank, and the one end of brake control pole and one end of brake spring support tightly, the downside of brake control pole is connected with the brake band, still include the gasket, adjusting nut and adjusting screw, adjusting screw is coaxial fixed setting in the holding tank and keeps away from the one end of major-minor lever, the adjusting nut is arranged on the adjusting screw in a screwed mode, the gasket is sleeved on the adjusting screw, and one end of the brake spring abuts against the gasket tightly on the end face of the adjusting nut.
Third, beneficial effect
Compared with the prior art, the utility model discloses a suitable torsion rotation adjusting screw adjusts the initial elasticity of brake spring (when non-braking state), has ensured the uniformity of initial elasticity to brake thrust's uniformity, safe and reliable has been ensured. Meanwhile, the device is simple and practical and is very convenient to assemble.
Drawings
Fig. 1 is an improved structure diagram of the brake mechanism of the utility model combined with the traditional chain saw.
In the figure:
1 is a front baffle; 2 is a side cover; 3 is a main and auxiliary lever; 4 is a brake control rod; 5 is a brake spring; 6 is a gasket; 7 is an adjusting nut; 8 is an adjusting screw; 9 is a holding tank; and 10 is a brake band.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
Referring to fig. 1, the brake thrust adjusting device for the chain saw of the present embodiment is composed of a front baffle 1, a side cover 2, a main and auxiliary lever 3, a brake control rod 4, a brake spring 5, a gasket 6, an adjusting nut 7, an adjusting screw 8, a brake band 10, etc., wherein one end of the front baffle is hinged to one end of the side cover 2, an accommodating groove 9 for the brake spring 5 to axially extend and retract is provided on the side cover 2, the main and auxiliary lever 3 is located between the brake spring 5 and the hinged end of the front baffle, one end of the main and auxiliary lever 3 is connected to the hinged end of the front baffle, the other end is hinged to one end of the brake control rod 4, one end of the brake control rod 4 far from the main and auxiliary lever 3 extends into the brake spring 5 along the axial direction of the accommodating groove 9, and the end of the brake control rod 4 is tightly pressed against one end of the brake spring 5, and the lower side of the brake control rod 4 is connected to the brake band 10, adjusting screw 8 is coaxial fixed and sets up in the one end that main and auxiliary lever 3 was kept away from to holding tank 9, and adjusting nut 7 is located adjusting screw soon, and adjusting screw is located to gasket 6 cover on to brake spring 5's one end supports gasket 6 tightly on adjusting nut 7's terminal surface.
Compared with the traditional brake device at present, the brake device has the advantages that the gasket 6, the adjusting nut 7 and the adjusting screw 8 are added.
The adjusting nut 7 is enabled to abut against the gasket 6 by rotating the adjusting screw 8, the gasket 6 is tightly attached to the end face of the brake spring 5, and the adjusting screw 8 is rotated by appropriate torque force, so that the elasticity of the brake spring 5 is controlled, the consistency of brake thrust is guaranteed, and the purposes of safety and reliability are achieved.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (1)
1. A brake thrust adjusting device for a chain saw comprises a front baffle plate (1), a side cover (2), a main lever (3), a brake control rod (4), a brake spring (5) and a brake belt (10), wherein one end of the front baffle plate is hinged with one end of the side cover (2), an accommodating groove (9) for the brake spring (5) to axially extend and retract is arranged on the side cover (2), the main lever (3) and the auxiliary lever are positioned between the brake spring (5) and the hinged end of the front baffle plate, one end of the main lever (3) and the auxiliary lever are connected with the hinged end of the front baffle plate, the other end of the main lever and the auxiliary lever are hinged with one end of the brake control rod (4), one end, far away from the main lever and the auxiliary lever (3), of the brake control rod (4) extends into the brake spring (5) along the axial direction of the accommodating groove (9), the end of the brake control rod (4) is tightly connected with one end of the brake spring (5), and the lower side of the brake control rod (4) is connected with the brake belt (10), the brake lever is characterized by further comprising a gasket (6), an adjusting nut (7) and an adjusting screw (8), wherein the adjusting screw (8) is coaxially fixed and arranged at one end, far away from the main lever and the auxiliary lever (3), of the accommodating groove (9), the adjusting nut (7) is arranged on the adjusting screw in a rotating mode, the gasket (6) is sleeved on the adjusting screw, and the gasket (6) is abutted to the end face of the adjusting nut (7) through one end of the brake spring (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120079142.7U CN214709281U (en) | 2021-01-12 | 2021-01-12 | Brake thrust adjusting device for chain saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120079142.7U CN214709281U (en) | 2021-01-12 | 2021-01-12 | Brake thrust adjusting device for chain saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214709281U true CN214709281U (en) | 2021-11-16 |
Family
ID=78638847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120079142.7U Active CN214709281U (en) | 2021-01-12 | 2021-01-12 | Brake thrust adjusting device for chain saw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214709281U (en) |
-
2021
- 2021-01-12 CN CN202120079142.7U patent/CN214709281U/en active Active
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