CN203230757U - Pressure arm applied to axial air chamber double-push-rod pneumatic disc type brake - Google Patents
Pressure arm applied to axial air chamber double-push-rod pneumatic disc type brake Download PDFInfo
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- CN203230757U CN203230757U CN 201320259466 CN201320259466U CN203230757U CN 203230757 U CN203230757 U CN 203230757U CN 201320259466 CN201320259466 CN 201320259466 CN 201320259466 U CN201320259466 U CN 201320259466U CN 203230757 U CN203230757 U CN 203230757U
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- arc surface
- pressure arm
- axle center
- ball
- inner arc
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Abstract
The utility model relates to a pressure arm applied to an axial air chamber double-push-rod pneumatic disc type brake. The pressure arm comprises a pressure arm body, wherein a ball socket is arranged at one end of the pressure arm body; the other end of the pressure arm body is vertically and fixedly connected with the middle part of a rotating surface; the rotating surface comprises an inner arc surface and an outer arc surface; and an opening of the rotating surface and an opening of the ball socket are formed in the same side of the pressure arm body. The requirement of the axial air chamber double-push-rod pneumatic disc type brake on force increasing ratio is met, and the problems on the strength of the pressure arm, the abrasive resistance of the ball socket of the pressure arm, the glossiness and the abrasive resistance of the rotating surface, and matching with other parts are solved.
Description
Technical field
The utility model relates to a kind of pressure arm, particularly a kind of two push rod air-pressure disc brakes of axial air chamber that are suitable for.
Background technique
Pressure arm is a key components and parts of air-pressure disc brake, its effect is equivalent to a boosting lever, its working principle is: when the brake chamber push rod vertically acts on the pressure arm ball-and-socket, pressure arm will rotate around the fulcrum cylinder, realize then the braking force behind braking displacement and the reinforcement being passed to reference seat by the braking force reinforcement in the time of pressure arm rotation output braking displacement.Pass to screw rod by reference seat, friction plate in screw rod promotes is eliminated after the gap between friction plate and the brake disc, and outside friction disc is also fitted with brake disc, thereby interior outside friction disc is embraced brake disc, realizes braking.The two push rod air-pressure disc brakes of domestic axial air chamber are a kind of brand-new breaks newly developed, and pressure arm is had following requirement:
1) realizes the force increasing ratio of bigger pressure arm at the small space of compact structure;
Distortion is as far as possible little when 2) having enough intensity to guarantee that pressure arm is stressed, thereby guarantees that pressure arm transmission efficiency in stressed bigger power transmission process is high and it is little to lose, can offer the enough braking force of break;
3) ball-and-socket of pressure arm and brake chamber push rod contact frequently stressedly, need wear-resisting;
4) pressure arm needs surface of revolution highly polished, wear-resisting by rotation output braking displacement;
5) with the respective outer side edges of two other component of push rod air-pressure disc brake.
At present, Shang Weiyou is fit to the special pressure arm of the two push rod air-pressure disc brakes of axial air chamber.
The model utility content
The purpose of this utility model is to propose a kind ofly can satisfy the two push rod air-pressure disc brake required pressure arms of domestic axial air chamber.
For achieving the above object, the utility model discloses the pressure arm that is suitable for the two push rod air-pressure disc brakes of axial air chamber, comprising: an end is provided with the pressure arm body that ball-and-socket, the other end are connected with the middle part vertical fixing of surface of revolution; Described surface of revolution comprises inner arc surface and exterior arc surface, and relative exterior arc surface axle center, described inner arc surface axle center is away from an end of pressure arm ball-and-socket; The opening of described surface of revolution and the opening of ball-and-socket are at the pressure arm homonymy.
Preferably, described pressure arm is selected the material of 20CrMnTiA for use, and forging adopts normalized treatment.
Preferably, the ball-and-socket case-carbonizing of described pressure arm is handled, degree of depth 0.8-1.0mm; Quench: surface hardness 58-63HRC and centre hardness 29-35HRC.
Preferably, surface roughness 0.8 is handled in the inside and outside arc surface grinding of described pressure arm surface of revolution; The case-carbonizing of inside and outside circle cambered surface is handled, and degree of depth 0.8-1.0mm quenches: surface hardness 58-63HRC, centre hardness 29-35HRC.
Preferably, described exterior arc surface is provided with the fitting surface that is complementary with its connected element.
Preferably, the ratio of the horizontal equivalent in the horizontal equivalent of described inner arc surface axle center and the ball-and-socket centre of sphere and inner arc surface axle center and exterior arc surface axle center is 15.8-16.
Again preferably, the horizontal equivalent of described inner arc surface axle center and the ball-and-socket centre of sphere: the ratio of the horizontal equivalent in inner arc surface axle center and exterior arc surface axle center is 15.8.
Further preferably, the horizontal equivalent of described inner arc surface axle center and the ball-and-socket centre of sphere is 68mm, error 0.05mm; The horizontal equivalent in described inner arc surface axle center and exterior arc surface axle center is 4.7mm, error+0.035mm ,-0.04mm.
Again preferably, the horizontal equivalent of described inner arc surface axle center and the ball-and-socket centre of sphere: the ratio of the horizontal equivalent in inner arc surface axle center and exterior arc surface axle center is 16.
Further preferably, the horizontal equivalent of described inner arc surface axle center and the ball-and-socket centre of sphere is 75.2mm, error 0.06mm; The horizontal equivalent in described inner arc surface axle center and exterior arc surface axle center is 4.7mm, error+0.035mm ,-0.04mm.
Pass through said structure, the utility model has satisfied the two push rod air-pressure disc brakes of axial air chamber for the requirement of force increasing ratio, and to the degree of finish of wear-resisting, the surface of revolution of the intensity of pressure arm, pressure arm ball-and-socket and wear-resisting and with the matching problem of other component.
Detailed content of the present utility model can obtain by explanation described later and institute's accompanying drawing.
Description of drawings
Fig. 1 is the utility model embodiment 1 side view;
Fig. 2 is the utility model embodiment 1 plan view;
Fig. 3 is the enlarged view of the utility model embodiment 1 side view;
Fig. 4 is the utility model embodiment 2 side view;
Among the figure, 10-pressure arm body, 12-ball-and-socket, 20-surface of revolution, 22-inner arc surface, 24-exterior arc surface, the 122-ball-and-socket centre of sphere, 222-inner arc surface axle center, 242-exterior arc surface axle center.
Embodiment
Below in conjunction with drawings and Examples embodiment of the present utility model is further described, following examples only are used for the technical solution of the utility model more clearly is described, and can not limit protection domain of the present utility model with this.
Embodiment 1.Extremely shown in Figure 2 as Fig. 1, the concrete technological scheme of implementing of the utility model is: be suitable for the pressure arm of the two push rod air-pressure disc brakes of axial air chamber, comprise: an end is provided with the pressure arm body 10 that ball-and-socket 12, the other end are connected with the middle part vertical fixing of surface of revolution 20; Described surface of revolution 20 comprises inner arc surface 22 and exterior arc surface 24, and 222 relative exterior arc surface axle center 242, described inner arc surface axle center are away from an end of pressure arm ball-and-socket 12; The opening of the opening of described surface of revolution 20 and ball-and-socket 12 is at the homonymy of pressure arm body 10.
Wherein, the ratio of the horizontal equivalent in the horizontal equivalent of described inner arc surface axle center 222 and the ball-and-socket centre of sphere 122 and inner arc surface axle center 222 and exterior arc surface axle center 242 is 15.8-16.
What the utility model was selected for use is that the ratio of the horizontal equivalent in the horizontal equivalent of described inner arc surface axle center 222 and the ball-and-socket centre of sphere 122 and inner arc surface axle center 222 and exterior arc surface axle center 242 is 16.
Particularly, the horizontal equivalent of inner arc surface axle center 222 and the ball-and-socket centre of sphere 122 is 75.2mm, error 0.06mm; The horizontal equivalent in inner arc surface axle center 222 and exterior arc surface axle center 242 is 4.7mm, error+0.035mm ,-0.04mm.
In order to guarantee the intensity of pressure arm, described pressure arm is selected the material of 20CrMnTiA for use, and forging adopts normalized treatment.
In order to improve the wear-resisting property of pressure arm ball-and-socket 12, ball-and-socket 12 case-carbonizings of described pressure arm are handled, degree of depth 0.8-1.0mm; Quench: surface hardness 58-63HRC and centre hardness 29-35HRC.
For degree of finish and the wear-resisting property that improves surface of revolution 20, surface roughness 0.8 is handled in the inner arc surface 22 of described pressure arm surface of revolution 20, exterior arc surface 24 grindings; 22 case-carbonizings of inside and outside circle cambered surface are handled, and degree of depth 0.8-1.0mm quenches: surface hardness 58-63HRC, centre hardness 29-35HRC.
In order to solve the matching problem with other component, described exterior arc surface 24 is provided with the fitting surface that is complementary with its connected element.
Embodiment 2.As shown in Figure 4, the concrete technological scheme of implementing of the utility model is: be suitable for the pressure arm of the two push rod air-pressure disc brakes of axial air chamber, comprise: an end is provided with the pressure arm body that ball-and-socket, the other end are connected with the middle part vertical fixing of surface of revolution; Described surface of revolution comprises inner arc surface and exterior arc surface, and 222 relative exterior arc surface axle center 242, described inner arc surface axle center are away from an end of pressure arm ball-and-socket; The opening of described surface of revolution and the opening of ball-and-socket are at the homonymy of pressure arm body.
Wherein, the ratio of the horizontal equivalent in the horizontal equivalent of described inner arc surface axle center 222 and the ball-and-socket centre of sphere 122 and inner arc surface axle center 222 and exterior arc surface axle center 242 is 15.8-16.
As shown in Figure 3, the utility model is selected for use, and the ratio of the horizontal equivalent in the horizontal equivalent of described inner arc surface axle center 222 and the ball-and-socket centre of sphere 122 and inner arc surface axle center 222 and exterior arc surface axle center 242 is 5.8.
Particularly, the horizontal equivalent of inner arc surface axle center 222 and the ball-and-socket centre of sphere 122 is 68mm, error 0.05mm; The horizontal equivalent in inner arc surface axle center 222 and exterior arc surface axle center 242 is 4.7mm, error+0.035mm ,-0.04mm.
In order to guarantee the intensity of pressure arm, described pressure arm is selected the material of 20CrMnTiA for use, and forging adopts normalized treatment.
In order to improve the wear-resisting property of pressure arm ball-and-socket, the ball-and-socket case-carbonizing of described pressure arm is handled, degree of depth 0.8-1.0mm; Quench: surface hardness 58-63HRC and centre hardness 29-35HRC.
For degree of finish and the wear-resisting property that improves surface of revolution, surface roughness 0.8 is handled in the inner arc surface of described pressure arm surface of revolution, exterior arc surface grinding; The case-carbonizing of inside and outside circle cambered surface is handled, and degree of depth 0.8-1.0mm quenches: surface hardness 58-63HRC, centre hardness 29-35HRC.
In order to solve the matching problem with other component, described exterior arc surface is provided with the fitting surface that is complementary with its connected element.
The above only is preferential mode of execution of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (10)
1. be suitable for the pressure arm of the two push rod air-pressure disc brakes of axial air chamber, it is characterized in that comprising: an end is provided with the pressure arm body that ball-and-socket, the other end are connected with the middle part vertical fixing of surface of revolution; Described surface of revolution comprises inner arc surface and exterior arc surface, and relative exterior arc surface axle center, described inner arc surface axle center is away from an end of pressure arm ball-and-socket; The opening of described surface of revolution and the opening of ball-and-socket are at the homonymy of pressure arm body.
2. the pressure arm that is suitable for the two push rod air-pressure disc brakes of axial air chamber according to claim 1, it is characterized in that: described pressure arm is selected the material of 20CrMnTiA for use, and forging adopts normalized treatment.
3. the pressure arm that is suitable for the two push rod air-pressure disc brakes of axial air chamber according to claim 1 is characterized in that: the ball-and-socket case-carbonizing processing of described pressure arm, degree of depth 0.8-1.0mm; Quench: surface hardness 58-63HRC and centre hardness 29-35HRC.
4. the pressure arm that is suitable for the two push rod air-pressure disc brakes of axial air chamber according to claim 1 is characterized in that: the inside and outside arc surface grinding processing of described pressure arm surface of revolution, surface roughness 0.8; The case-carbonizing of inside and outside circle cambered surface is handled, and degree of depth 0.8-1.0mm quenches: surface hardness 58-63HRC, centre hardness 29-35HRC.
5. the pressure arm that is suitable for the two push rod air-pressure disc brakes of axial air chamber according to claim 1, it is characterized in that: described exterior arc surface is provided with the fitting surface that is complementary with its connected element.
6. the pressure arm that is suitable for the two push rod air-pressure disc brakes of axial air chamber according to claim 1, it is characterized in that: the ratio of the horizontal equivalent in the horizontal equivalent of described inner arc surface axle center and the ball-and-socket centre of sphere and inner arc surface axle center and exterior arc surface axle center is 15.8-16.
7. the pressure arm that is suitable for the two push rod air-pressure disc brakes of axial air chamber according to claim 6, it is characterized in that: the horizontal equivalent of described inner arc surface axle center and the ball-and-socket centre of sphere: the ratio of the horizontal equivalent in inner arc surface axle center and exterior arc surface axle center is 15.8.
8. the pressure arm that is suitable for the two push rod air-pressure disc brakes of axial air chamber according to claim 7, it is characterized in that: the horizontal equivalent of described inner arc surface axle center and the ball-and-socket centre of sphere is 68mm, error 0.05mm; The horizontal equivalent in described inner arc surface axle center and exterior arc surface axle center is 4.7mm, error+0.035mm ,-0.04mm.
9. the pressure arm that is suitable for the two push rod air-pressure disc brakes of axial air chamber according to claim 6, it is characterized in that: the horizontal equivalent of described inner arc surface axle center and the ball-and-socket centre of sphere: the ratio of the horizontal equivalent in inner arc surface axle center and exterior arc surface axle center is 16.
10. the pressure arm that is suitable for the two push rod air-pressure disc brakes of axial air chamber according to claim 9, it is characterized in that: the horizontal equivalent of described inner arc surface axle center and the ball-and-socket centre of sphere is 75.2mm, error 0.06mm; The horizontal equivalent in described inner arc surface axle center and exterior arc surface axle center is 4.7mm, error+0.035mm ,-0.04mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320259466 CN203230757U (en) | 2013-05-13 | 2013-05-13 | Pressure arm applied to axial air chamber double-push-rod pneumatic disc type brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320259466 CN203230757U (en) | 2013-05-13 | 2013-05-13 | Pressure arm applied to axial air chamber double-push-rod pneumatic disc type brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203230757U true CN203230757U (en) | 2013-10-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320259466 Expired - Fee Related CN203230757U (en) | 2013-05-13 | 2013-05-13 | Pressure arm applied to axial air chamber double-push-rod pneumatic disc type brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203230757U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107120368A (en) * | 2017-05-24 | 2017-09-01 | 武汉元丰汽车零部件有限公司 | A kind of double push rod air-pressure disc brakes of floating tong type radial direction |
| CN107131235A (en) * | 2017-05-24 | 2017-09-05 | 武汉元丰汽车零部件有限公司 | It is applicable the pressure arm and rotating shaft assembly of radially double push rod air-pressure disc brakes |
-
2013
- 2013-05-13 CN CN 201320259466 patent/CN203230757U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107120368A (en) * | 2017-05-24 | 2017-09-01 | 武汉元丰汽车零部件有限公司 | A kind of double push rod air-pressure disc brakes of floating tong type radial direction |
| CN107131235A (en) * | 2017-05-24 | 2017-09-05 | 武汉元丰汽车零部件有限公司 | It is applicable the pressure arm and rotating shaft assembly of radially double push rod air-pressure disc brakes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131009 Termination date: 20160513 |