CN210034228U - Inertia brake with opening retaining device - Google Patents
Inertia brake with opening retaining device Download PDFInfo
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- CN210034228U CN210034228U CN201920150071.8U CN201920150071U CN210034228U CN 210034228 U CN210034228 U CN 210034228U CN 201920150071 U CN201920150071 U CN 201920150071U CN 210034228 U CN210034228 U CN 210034228U
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- brake
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- disc
- retaining
- opening
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Abstract
The utility model provides a retaining device's inertia stopper is opened in area. The inertia brake with the opening retaining device comprises a driving shaft, a driving end concave-convex spiral surface, a driven shaft, a driven disc, a jacking disc, a friction plate and a braking device, and further comprises a retaining device which can counteract the pushing force applied to the jacking disc by the braking device when the inertia brake is opened, so that the size of the opening gap of the brake and the opening state do not change. Compared with the prior art, the utility model provides a holding device has holding device's inertia stopper is opened in area has solved the phenomenon that the clearance changes along with the load change of output, lets inertia stopper's the clearance of opening can keep invariable.
Description
Technical Field
The utility model relates to a stopper technical field especially relates to a retaining device's inertia stopper is opened in area.
Background
The inertia brake is a brake product with a brake function and a coupling function by utilizing an inertia brake technology, and the working mechanism of the inertia brake is that the opening action of the brake is realized by utilizing the load difference of the input end (driving end) and the output end (driven end) of the brake, and the torque transmission is realized by the close fit of the concave-convex rotary surface. The concave-convex spiral surfaces of the driving end and the driven end are jointed together, and the driving end and the driven end can generate axial displacement while generating relative angular displacement during transmission. The radial force of angular displacement is used for transmitting torque, the axial force of axial displacement is used for maintaining the brake to be opened, and the two displacements are dependent and mutually influenced. During the opening transmission process of the inertia brake, if the load of the driven end fluctuates and even disappears, the axial force of the brake can be changed, so that the opening gap is changed, and the opening gap is even disappeared to generate drag.
In an ideal use environment with stable load at the driven end, the inertia brake can work stably. In a practical use environment, however, the load of many mechanisms cannot be completely stabilized. For example, when the road surface leveling device is used on a walking driving mechanism, the road surface cannot be completely leveled; in the use of the track-bound traveling equipment for a long time, the track can also deform and bend, so that the opening gap of the inertia brake can be changed continuously due to the change of the load in the whole running distance or running time, and abnormal abrasion, noise and the like are caused.
In order to solve the above problems and improve the usability of the inertia brake, an inertia brake with an opening holding device is proposed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a can make the size of the opening clearance of stopper and open the state obtain keep, do not change the inertia stopper of holding device is opened in area.
The technical scheme of the utility model is that: an inertia brake with an opening retaining device is provided, which comprises a driving shaft connected with a driving motor, a driving end concave-convex spiral surface arranged at the output end of the driving shaft, a driven shaft matched with the driving end concave-convex spiral surface through a driven end concave-convex spiral surface, a driven disc fixedly matched with the excircle of the driven end concave-convex spiral surface, a top pressure disc matched with the driving end concave-convex spiral surface, a friction plate arranged between the driven disc and the top pressure disc, and a braking device used for pushing the top pressure disc to the direction of the driven disc and pressing the friction plate tightly to realize braking, the brake device also comprises a holding device which can counteract the pushing force applied to the jacking disc by the brake device when the driving end concave-convex spiral surface rotates to move axially relative to the driven end concave-convex spiral surface and drives the jacking disc to move a certain distance to the end of the driving motor to open the inertia brake, so that the size of the opening gap of the brake and the opening state are not changed.
Preferably, the holding means comprises:
the holding seat is arranged on one side of the top pressing disc, which is far away from the driven disc;
the locking pin hole is arranged at the tail end of the retaining seat and is parallel to the driving shaft;
the seat hole extends from the lock pin hole to the direction far away from the retaining seat, is communicated with the lock pin hole and is perpendicular to the driving shaft;
one end of the retaining stay bar is fixed with the jacking plate, and the other end of the retaining stay bar penetrates through the lock pin hole to form sliding fit;
a retaining spring received in the seat hole;
a holding pin abutting against the holding stay under urging force of the holding spring;
and opening the pull rod, fixing the pull rod between the driven plate and the holding seat, and penetrating through the jacking plate to form sliding fit.
In the above scheme, the holding spring transmits the jacking force to the holding stay bar through the holding pin to generate an upward locking force, and the locking force can counteract the pushing force applied to the jacking disc by the braking device, so that the size and the opening state of the opening gap of the brake are not changed. Therefore, in order to better transmit and maintain the locking force, the holding stay bar is provided with a locking groove which is positioned between the holding seat and the jacking disc, and the locking groove is a groove pit or an annular groove which is matched with the top of the holding pin.
Further, the top of the holding pin is of a flat pointed structure, a conical pointed structure or a spherical top surface structure.
In another version, the top of the retaining pin is provided with a steel ball.
Preferably, the braking device includes:
the spring seat is arranged on one side of the top pressing disc, which is far away from the driven disc;
the brake spring is abutted between the spring seat and the jacking disc;
and one end of the brake pull rod is fixed on the driven plate, and the other end of the brake pull rod penetrates through the top pressure plate and the brake spring in sequence to form sliding fit and then is connected with the spring seat through threads.
Preferably, a shaft shoulder for driving the jacking disc to move coaxially is arranged on the outer circular surface of the concave-convex spiral surface of the driving end.
Preferably, the top pressing plate is matched with the excircle of the concave-convex spiral surface of the driving end through a plane bearing or a sliding gasket.
Preferably, the friction plates are fixed by a base arranged above the driven disc and a support rod extending from the base in parallel with the driven shaft, the number of the friction plates is one, and the friction plates are in sliding fit with the support rod through holes in the friction plates.
Preferably, the friction disc is through the frame that the driven plate top set up with certainly frame and driven shaft parallel extension's bracing piece are fixed, the quantity of friction disc is two at least, the friction disc is in set up along the axial interval of driven shaft on the bracing piece, and through its hole with bracing piece sliding fit is equipped with the brake disc in the middle of the friction disc, the brake disc runs through brake pull rod forms sliding fit.
Compared with the prior art, the beneficial effects of the utility model are that:
an inertia brake with a holding device solves the problem that the opening gap changes along with the load change of an output end (driven end), and the opening gap of the inertia brake can be kept constant.
The opening gap is not changed along with the load change of an output end (driven end), so that the inertial brake can be more suitable for various working conditions on site, such as rail settlement deformation, wheel pressure imbalance and the like, and stable and synchronous operation is ensured; the inertia brake can adapt to long-distance and long-time operation under the working conditions, and the brake dragging phenomenon is avoided;
and thirdly, the opening gap is not changed along with the load change of the output end (driven end), the function of reducing the operation noise can be achieved, and the operation stability of the brake is improved.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of an inertia brake with an opening holding device according to the present invention;
fig. 2 is a schematic structural diagram of a second embodiment of the inertia brake with an opening holding device according to the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. For convenience of description, the words "upper", "lower", "left" and "right" used herein refer to the directions of the drawings, and do not limit the structure of the drawings.
Example one
As shown in fig. 1, the inertia brake with an opening holding device according to the present embodiment includes a driving shaft 1, a driven shaft 2, a driven disc 3, a pressing disc 4, a friction plate 5, a support rod 6, a housing 7, a braking device 8, and a holding device 9.
The input end of the driving shaft 1 is connected with a driving motor (not shown), and the output end of the driving shaft is provided with a driving end concave-convex spiral surface 11. The driving shaft 1 and the driving end concave-convex spiral surface 11 are sleeved together and can only rotate together, but the driving end concave-convex spiral surface 11 can axially move along the driving shaft 1.
The input end of the driven shaft 2 is provided with a driven end concave-convex spiral surface 21, and the driving end concave-convex spiral surface 11 is matched with the driven end concave-convex spiral surface 21. The output end of the driven shaft 2 is connected to a speed reducer (not shown).
The driven disc 3 is fixedly matched with the excircle of the concave-convex spiral surface 21 at the driven end.
The pressing disc 4 is matched with the concave-convex spiral surface 11 of the driving end. Namely, when the driving end concave-convex helicoid 11 rotates relative to the driven end concave-convex helicoid 21 and is separated from the driven end concave-convex helicoid 21 to move axially, the driving end concave-convex helicoid drives the top pressure plate 4 to move together, and in order to ensure accurate transmission of movement, a shaft shoulder 12 for driving the top pressure plate 4 to move axially together is arranged on the outer circular surface of the driving end concave-convex helicoid 11. After being provided with the shaft shoulder 12, the top pressure plate 4 is matched with the excircle of the concave-convex spiral surface 11 of the driving end through a plane bearing or a sliding gasket.
The friction plate 5 is arranged between the driven plate 3 and the jacking plate 4, and the friction plate 5 is fixed by a base 7 arranged above the driven plate 3 and a support rod 6 extending from the base 7 in parallel with the driven shaft. The support rod 6 is fixedly connected with the base 7, the support rod 6 is arranged above the driven disc 3 and extends in parallel with the driven shaft, the friction plate 5 is arranged on the support rod 6 through a hole in the friction plate, and the friction plate 5 can slide on the support rod 6. In addition, the friction disc can be replaced by a complete circle of friction disc, and the protection scope of the utility model also belongs to.
The braking device 8 and the holding device 9 are arranged symmetrically along the driving shaft 1 and the driven shaft 2. Or, the number of the braking devices 8 and the number of the holding devices 9 are both multiple, and the braking devices and the holding devices are alternately and uniformly distributed along the axial centers of the driving shaft 1 and the driven shaft 2 in a circumferential manner.
The braking device 8 includes a spring seat 81, a braking spring 82, and a braking lever 83. The spring seat 81 is arranged on one side of the top pressure plate 4 far away from the driven plate 3, and the brake spring 82 is abutted between the spring seat 81 and the top pressure plate 4. One end of the brake pull rod 83 is fixed on the driven plate 3, and the other end of the brake pull rod penetrates through the top pressure plate 4 and the brake spring 82 in sequence to form sliding fit and then is connected with the spring seat 81 through threads.
The top pressure plate 4 and the driven plate 3 press the friction plate 5 under the spring pushing force of the brake spring 82 to form a braking force.
The retaining means 9 comprises a retaining socket 91, a lock pin hole 92, a socket hole 93, a retaining strut 94, a retaining spring 95, a retaining pin 96 and an opening pull rod 97. The holding seat 91 is arranged on the side of the top pressing plate 4 far away from the driven plate 3. The tail end of the holding seat 91 is provided with the locking pin hole 92, and the locking pin hole 92 is parallel to the driving shaft. The seat hole 93 extends from the lock pin hole 92 in a direction away from the holding seat 91, and the seat hole 93 is formed to penetrate the lock pin hole 92 and to be perpendicular to the drive shaft. One end of the retaining brace 94 is fixed with the pressing plate 4, and the other end penetrates through the lock pin hole 92 to form sliding fit. The retaining spring 95 is housed in the seat hole 93.
The holding pin 96 abuts against the holding stay 94 under the urging force of the holding spring 95. The retaining stay rod 94 is provided with a locking groove 941, the locking groove 941 is located between the retaining base 91 and the top pressing disc 4, and preferably, the locking groove 941 is located on the maximum stroke of the driving end concave-convex spiral surface 11 of the retaining stay rod 94 for making axial displacement towards the driving motor. The locking groove is a groove pit or an annular groove, and the locking groove 941 is matched with the top of the retaining pin 96. The retaining pin 96 is in a sliding engagement with the retaining strut 94 in contact under the action of the retaining spring 95. The top of the retaining pin 96 is a flat pointed structure or a tapered pointed structure or a spherical top surface structure. In another embodiment, the top of the holding pin is provided with a steel ball.
The opening pull rod 97 is fixed between the driven plate 2 and the retaining seat 91 and penetrates through the top pressing plate 4 to form sliding fit.
The utility model provides a holding device's inertia brake's control method is opened in area, include:
① the inertia brake is opened, and the power transmission:
the concave-convex spiral surface at the driving end is meshed with the concave-convex spiral surface at the driven end together, when the driving motor is powered on and started, the driving shaft is driven to rotate, and under the action of the driving shaft, the concave-convex spiral surface at the driving end axially moves relative to the concave-convex spiral surface at the driven end in a rotating action and drives the top pressure plate to move a certain distance to the end of the driving motor, so that the braking spring is compressed, meanwhile, the compression effect on the friction plate is relieved, and the opening of the inertial brake is realized;
the holding support rod is driven to synchronously move while the top pressing plate moves towards the end of the driving motor, so that the holding pin slides on the axial surface of the holding support rod and falls into the pin groove, the holding pin is pushed upwards (namely, the holding pin moves in the direction of the driving shaft) by the holding spring and forms axial locking force with the pin groove, and the axial locking force and axial component force between the concave-convex spiral surface at the driving end and the concave-convex spiral surface at the driven end can offset the pushing force of the braking spring, so that the size and the opening state of an opening gap of the brake are kept and do not change;
② the inertia brake brakes:
when the driving motor is powered off and braking is needed, axial component force between the concave-convex spiral surface at the driving end and the concave-convex spiral surface at the driven end disappears, the retaining pin is pushed upwards by the retaining spring, axial locking force formed by the retaining pin and the pin groove is not enough to counteract the pushing force of the braking spring, the retaining pin is withdrawn from the locking groove and does not generate axial locking force any more, the friction plate is pressed again by the pressing plate under the pushing force action of the braking spring, rated braking pressing force is provided, and the inertial brake outputs rated braking torque to realize braking.
Example two
As shown in fig. 2, the number of the friction plates 5 is two, the support rod 6 is arranged at intervals along the axial direction of the driven shaft 2, a brake disc 10 is arranged between the two friction plates 5, and the brake disc 10 penetrates through the brake pull rod 83 to form sliding fit. The brake disc 10 is axially movable but non-rotatable, and the brake disc 10 is rotatable with the driven disc 3.
In this embodiment, the friction plate 5 may be a full-circle friction plate.
Other component structures, connection relationships, and control methods in this embodiment are the same as those in the first embodiment.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.
Claims (10)
1. An inertia brake with an opening retaining device comprises a driving shaft connected with a driving motor, a driving end concave-convex spiral surface arranged at the output end of the driving shaft, a driven shaft matched with the driving end concave-convex spiral surface through a driven end concave-convex spiral surface, a driven disc fixedly matched with the excircle of the driven end concave-convex spiral surface, a top pressure disc matched with the driving end concave-convex spiral surface, a friction plate arranged between the driven disc and the top pressure disc, and a braking device used for pushing the top pressure disc to the direction of the driven disc and pressing the friction plate to realize braking So that the size of the opening gap of the brake and the opening state do not change.
2. The inertial brake with opening retaining device of claim 1,
the holding device includes:
the holding seat is arranged on one side of the top pressing disc, which is far away from the driven disc;
the locking pin hole is arranged at the tail end of the retaining seat and is parallel to the driving shaft;
the seat hole extends from the lock pin hole to the direction far away from the retaining seat, is communicated with the lock pin hole and is perpendicular to the driving shaft;
one end of the retaining stay bar is fixed with the jacking plate, and the other end of the retaining stay bar penetrates through the lock pin hole to form sliding fit;
a retaining spring received in the seat hole;
a holding pin abutting against the holding stay under urging force of the holding spring;
and opening the pull rod, fixing the pull rod between the driven plate and the holding seat, and penetrating through the jacking plate to form sliding fit.
3. The inertia brake with open retainer of claim 2 wherein the retaining strut has a locking groove between the retaining socket and the top platen, the locking groove being a groove pit or an annular groove that mates with the top of the retaining pin.
4. The inertial brake with opening retaining device according to claim 2 or 3, characterized in that the top of the retaining pin is a flat spike or a conical spike or a spherical top surface.
5. An inertial brake with opening holding device according to claim 2 or 3, characterized in that the top of the holding pin is provided with a steel ball.
6. The inertial brake with opening retaining device according to claim 2, characterized in that said braking means comprise:
the spring seat is arranged on one side of the top pressing disc, which is far away from the driven disc;
the brake spring is abutted between the spring seat and the jacking disc;
and one end of the brake pull rod is fixed on the driven plate, and the other end of the brake pull rod penetrates through the top pressure plate and the brake spring in sequence to form sliding fit and then is connected with the spring seat through threads.
7. The inertia brake with the opening retaining device as claimed in claim 1 or 2, wherein the external circular surface of the concave-convex spiral surface of the driving end is provided with a shoulder for driving the top pressing disc to move in a same axial direction.
8. The inertial brake with opening holding device according to claim 1 or 2, characterized in that the top pressure plate cooperates with the outer circle of the concave-convex helicoid of the driving end through a plane bearing or a sliding washer.
9. The inertia brake with an open-holding mechanism according to claim 1, 2, 3 or 6, wherein the friction plates are fixed by a housing provided above the driven disc and a support rod extending from the housing in parallel with the driven shaft, the number of the friction plates being one, the friction plates being slidably engaged with the support rod through holes formed therein.
10. The inertial brake with open-holding device according to claim 6, characterized in that said friction plates are fixed by a base disposed above said driven disc and a support bar extending from said base in parallel with the driven shaft, said friction plates being at least two in number, said friction plates being disposed at intervals in the axial direction of the driven shaft on said support bar and slidably engaged with said support bar through holes formed therein, and a brake disc disposed between said friction plates and slidably engaged through said brake rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920150071.8U CN210034228U (en) | 2019-01-29 | 2019-01-29 | Inertia brake with opening retaining device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920150071.8U CN210034228U (en) | 2019-01-29 | 2019-01-29 | Inertia brake with opening retaining device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210034228U true CN210034228U (en) | 2020-02-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920150071.8U Withdrawn - After Issue CN210034228U (en) | 2019-01-29 | 2019-01-29 | Inertia brake with opening retaining device |
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| Country | Link |
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| CN (1) | CN210034228U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109812520A (en) * | 2019-01-29 | 2019-05-28 | 长沙三占惯性制动有限公司 | A kind of band opens the inertia brake and control method of holding meanss |
-
2019
- 2019-01-29 CN CN201920150071.8U patent/CN210034228U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109812520A (en) * | 2019-01-29 | 2019-05-28 | 长沙三占惯性制动有限公司 | A kind of band opens the inertia brake and control method of holding meanss |
| CN109812520B (en) * | 2019-01-29 | 2024-04-02 | 长沙三占惯性制动有限公司 | Inertial brake with opening and holding device and control method |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20200207 Effective date of abandoning: 20240402 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20200207 Effective date of abandoning: 20240402 |