CN200974533Y - Mechanical sliding barrier spacing cam - Google Patents
Mechanical sliding barrier spacing cam Download PDFInfo
- Publication number
- CN200974533Y CN200974533Y CN 200620159678 CN200620159678U CN200974533Y CN 200974533 Y CN200974533 Y CN 200974533Y CN 200620159678 CN200620159678 CN 200620159678 CN 200620159678 U CN200620159678 U CN 200620159678U CN 200974533 Y CN200974533 Y CN 200974533Y
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- CN
- China
- Prior art keywords
- space cam
- cam
- driven member
- utility
- model
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Regulating Braking Force (AREA)
Abstract
The utility model relates to a space cam used in the anti-skid element of the rail vehicles; the contour uses the form of the sine curve; the whole circle of the space cam is provided with four cycles. The device can completely solve the problem in the existing mechanical anti-skid element that the top rod can not be ensured to be reset after the anti-skid motion, which may result that the braking cylinder continuously exhausts. In addition, because of the elimination of the rigid impact and the soft impact, the device reduces the abrasion of the contact surface between the space cam and the driven part, and extends the service life.
Description
Technical field
The utility model relates to a kind of space cam, relate in particular to a kind of space cam that in used for rail vehicle machinery anti-skid device, starts to control making usefulness, its effect is to make mechanical anti-skid device action when the line deceleration/decel of any reaches specified value on the wheel tread tread rolling circle of place, and then the brake cylinder air draft, realize the vehicle wheel non-slip effect.
Background technology
At present, the space cam of used for rail vehicle machinery anti-skid device is the cylindrical space cam, and the space cam profilograph is the mode that straight line adds twist of track.The shortcoming of this profilograph be can not guarantee fully that driven member resets smoothly, there is rigid shock in driven member and soft impulse, space cam and driven member between higher pair mating surfaces serious wear.Wherein driven member can not guarantee to reset with the entail dangers to traffic safety fully, is to hinder mechanical anti-skid device to popularize the key factor of using in an all-round way.Back several service lifes of reducing mechanical anti-skid device.
Summary of the invention
The utility model calculates according to theory and verification experimental verification proposes a kind of space cam profile, what solved the existence of existing mechanical anti-skid device space cam can not guarantee that driven member resets, driven member impacts problems such as serious, thereby guarantees the service life of traffic safety, prolonged mechanical anti-skid device.Test shows: this space cam can guarantee fully that driven member resets, and thoroughly eliminates rigidity and soft impulse.
The utility model carries out type selecting again according to the design theory of modern space cam mechanism to the space cam profile, determines that the space cam profilograph is a sine curve, has four cycles on the whole circumference of space cam.Actual size at driven member roller and space cam profile calculates driven member displacement, speed, acceleration/accel, and finally determines the size of space cam and roller follower.
Space cam of the present utility model, its profilograph are sine curve, and four cycles are arranged on the whole circumference of space cam.
The beneficial effects of the utility model are: on the basis that does not change the anti-skid device original structure, guarantee resetting of driven member in the mechanical anti-skid device spatial cam.Owing to eliminated rigid shock and soft impulse theoretically, so significantly reduced the wearing and tearing of higher pair mating surfaces between space cam and the driven member.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a front view of the present utility model.
Fig. 2 is a left view of the present utility model.
Fig. 3 is an expansion drawing of the present utility model.
Fig. 4 is the assembly drowing of the utility model in mechanical anti-skid device.
1. space cams among Fig. 4,2. driven member, 3. push rod, 4. spring cotter.
The specific embodiment
As shown in Figure 1, 2, 3, the profilograph of space cam 1 is a sine curve, and four cycles are arranged on the whole circumference of space cam.
Push rod 3 and driven member 2 are fixed together by spring cotter 4 among Fig. 4, and are connected with axletree, and space cam 1 and inertia wheel are connected.
When car brakeing, when if the line deceleration/decel of any surpasses specified value on the wheel tread tread rolling circle, the driven member 2 that is connected with axletree can climb out of along profile from the profile low spot of the space cam 1 that is connected with inertia wheel, and then axially producing displacement, make push rod promote valve port, through a series of actions, the effect of vehicle wheel non-slip is played in the brake cylinder air draft.
Because the effect of space cam 1 outline line, driven member 2 can slide into low spot very soon, and then realizes that push rod resets, and continues to produce brake action.
Claims (1)
1. the space cam in the used for rail vehicle machinery anti-skid device, it is characterized in that: its space cam profile adopts sine curve, and four cycles are arranged on the whole circumference of space cam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620159678 CN200974533Y (en) | 2006-11-16 | 2006-11-16 | Mechanical sliding barrier spacing cam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620159678 CN200974533Y (en) | 2006-11-16 | 2006-11-16 | Mechanical sliding barrier spacing cam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200974533Y true CN200974533Y (en) | 2007-11-14 |
Family
ID=38900826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620159678 Expired - Lifetime CN200974533Y (en) | 2006-11-16 | 2006-11-16 | Mechanical sliding barrier spacing cam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200974533Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105438152A (en) * | 2015-12-25 | 2016-03-30 | 中国铁道科学研究院 | Connecting device for rail vehicle |
-
2006
- 2006-11-16 CN CN 200620159678 patent/CN200974533Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105438152A (en) * | 2015-12-25 | 2016-03-30 | 中国铁道科学研究院 | Connecting device for rail vehicle |
| CN105438152B (en) * | 2015-12-25 | 2019-05-07 | 中国铁道科学研究院 | The attachment device of rail vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: LOCOMOTIVE + CAR RESEARCH INSTITUTE, CHINA ACADEMY Effective date: 20120727 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C56 | Change in the name or address of the patentee |
Owner name: LOCOMOTIVE + CAR RESEARCH INSTITUTE, CHINA ACADEMY Free format text: FORMER NAME: INST. OF ROLLING STOCK, ACADEMY OF RAILWAY SCIENCE |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 100081 Beijing city Haidian District Daliushu Road No. 2 Railway Science Research Institute of Locomotive Research Institute Patentee after: CHINA ACADEMY OF RAILWAY SCIENCES LOCOMOTIVE & CAR Research Institute Address before: 100081 Beijing city Haidian District Daliushu Road No. 2 Railway Science Research Institute of Locomotive Research Institute Patentee before: LOCOMOTIVE AND CAR Research Institute CH |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120727 Address after: 100081 Beijing city Haidian District Daliushu Road No. 2 Co-patentee after: CHINA ACADEMY OF RAILWAY SCIENCES LOCOMOTIVE & CAR Research Institute Patentee after: CHINA ACADEMY OF RAILWAY SCIENCES Address before: 100081 Beijing city Haidian District Daliushu Road No. 2 Railway Science Research Institute of Locomotive Research Institute Patentee before: CHINA ACADEMY OF RAILWAY SCIENCES LOCOMOTIVE & CAR Research Institute |
|
| CX01 | Expiry of patent term |
Granted publication date: 20071114 |
|
| EXPY | Termination of patent right or utility model |