CN211715593U - Track speed limiting brake device - Google Patents
Track speed limiting brake device Download PDFInfo
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- CN211715593U CN211715593U CN202020237858.0U CN202020237858U CN211715593U CN 211715593 U CN211715593 U CN 211715593U CN 202020237858 U CN202020237858 U CN 202020237858U CN 211715593 U CN211715593 U CN 211715593U
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Abstract
The utility model discloses a track speed-limiting brake device, which comprises a fixed end and a rotating end which are coaxially rotated, wherein a pressure oil cavity is arranged inside the fixed end along the axis, a plurality of groups of piston cavities are arranged outside the pressure oil cavity in an annular array, the axis of the piston cavity is parallel to the axis of the pressure oil cavity, the two ends of the pressure oil cavity and the piston cavity are respectively communicated, an impeller is arranged in the pressure oil cavity in a rotating way, the input shaft of the impeller is coaxially and fixedly connected with the rotating end, a piston is arranged in the piston cavity in a sliding sealing way, a through damping hole is arranged on the surface of the piston along the axis, the track speed-limiting brake device adopts a moving part to drive the impeller to rotate by the self movement of the moving part, the piston generates axial movement through the flow of hydraulic oil in the pressure oil cavity and the piston cavity, forces a friction ring, the friction force is reduced, so that the moving part is not stopped completely, and the vehicle can continue to run at the designed speed.
Description
Technical Field
The utility model relates to an amusement equipment technical field specifically is a track speed limit brake equipment.
Background
In the production design of amusement equipment, track-guided moving parts such as a track train and the like are often used, in order to ensure the use safety of products, the moving speed of the moving parts in the track needs to be limited, and in the limiting process, the moving speed needs to be ensured to be stable, the output speed of a driving mechanism is limited by program codes in a common mode, so that the moving parts are reversely dragged to limit the speed, a speed detection mechanism needs to be added for the pillow-holding speed stability, but when the power failure and other problems occur, the detection and speed-limiting mode fails, most of the other speed-limiting mechanisms rely on external machinery or electromagnetism for power input, so that the speed can be limited, manual or program control is needed, and certain instability is achieved, therefore, the development and development of a device which can drive by utilizing the self speed of the moving parts and does not need a speed detection device is needed, the speed-limiting brake device can not only finish the speed stabilization of the moving part.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome current defect, a track speed limit brake equipment is provided, adopt motion piece self motion drive impeller to rotate, through the flow of pressure oil pocket and piston intracavity hydraulic oil, make the piston produce axial motion, force friction ring and friction disk extrusion friction, slow down, and after speed descends, frictional force reduces, make motion piece be unlikely to stop completely, can continue to go with design speed, can effectively solve the problem in the background art.
In order to achieve the above object, the utility model provides a following technical scheme: a track speed-limiting brake device comprises a fixed end and a rotating end which rotate coaxially, wherein a pressure oil cavity is arranged inside the fixed end along an axis, a plurality of groups of piston cavities are arranged outside the pressure oil cavity in an annular array, the axis of each piston cavity is parallel to the axis of the corresponding pressure oil cavity, two ends of each pressure oil cavity and two ends of each piston cavity are respectively communicated, an impeller is rotatably arranged in each pressure oil cavity, an input shaft of the impeller is coaxially and fixedly connected with the rotating end, a piston is arranged in each piston cavity in a sliding and sealing mode, and a through damping hole is arranged on the surface of the piston along the axis;
the rotating end comprises a friction disc and a friction ring which rotate relatively, the friction disc is coaxially and fixedly connected with the impeller, the friction ring and the fixed end are coaxially and slidably mounted, the friction ring is located in the middle of the friction disc and the fixed end, and a rigid connecting shaft is arranged between the friction ring and the piston.
As a preferred technical scheme of the utility model, a spring is axially arranged between the piston and the piston cavity;
through the arrangement of the spring, the speed of the moving element can be recovered to the original position after being reduced to a design threshold value, and the friction ring and the friction disc can be separated.
As a preferred technical solution of the present invention, the damping hole is a tapered through hole, and the aperture of the damping hole is gradually reduced along the flowing direction of the liquid;
through setting up the tapered through-hole, when making hydraulic oil pass through, drive the piston and slide along the axis, and exert axial force to the piston, through connecting axle transmission back, drive friction ring extrusion friction disc.
As a preferred technical scheme of the utility model, the derailleur concatenates between the axis of impeller and friction disk, the derailleur includes sun gear and bull gear of coaxial arrangement, bull gear and stiff end fixed mounting, sun gear and the coaxial fixed connection of impeller, the meshing sets up three at least groups of planet wheels between sun gear and the bull gear, and the axis position of three groups of planet wheels rotates relatively and sets up the planet wheel support, the revolving axis position of planet wheel support sets up the input shaft, the input shaft is connected with friction disk coaxial;
through the speed change structure of the planetary structure, the friction disc is lifted to the rotating speed of the impeller, so that the flowing speed of pressure oil between the pressure oil cavity and the piston cavity is increased, the axial pressure of the piston is lifted, the friction force between the friction ring and the friction disc is increased, and the braking effect is improved.
Compared with the prior art, the beneficial effects of the utility model are that: the rail speed-limiting brake device adopts a friction disc to be fixed with a rotating part of a moving part, for example, the friction disc is fixed with a rail wheel, the fixed end is directly fixed with the fixed part of the moving part, when the moving part moves, a roller wheel drives an impeller to rotate to drive hydraulic oil to circulate in a pressure oil cavity and a piston cavity, when the hydraulic oil passes through a damping hole, axial thrust is generated on a piston, when the rotating speed of the roller wheel is lower than a design threshold value, the axial force of the piston is equal to the static friction force of the piston, when the speed of the roller wheel is gradually increased, the flow rate of the hydraulic oil in the inner part is increased, so that the flow rate in the damping hole is increased, the axial force borne by the piston is increased, when the axial force is larger than the maximum static friction force of the piston, the friction ring and the friction disc are pushed to generate friction force, so as to reduce the speed, namely, the larger the friction force between the friction ring and the friction disc is, the larger the brake braking force is;
when the speed of the moving part is reduced, the flow rate of the internal hydraulic oil is reduced, the axial force of the piston is reduced at the moment, and the piston is gradually reset under the action of the spring, so that the friction force between the friction ring and the friction disc is reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a sectional view of the present invention;
FIG. 3 is a schematic view of the transmission of the present invention;
fig. 4 is a schematic view of the piston of the present invention.
In the figure: 1 fixed end, 101 pressure oil chamber, 102 piston chamber, 103 piston, 104 spring, 105 impeller, 106 connecting shaft, 107 damping hole, 2 rotating end, 201 friction disc, 202 friction ring, 3 speed changer, 301 input shaft, 302 sun gear, 303 large gear ring, 304 planet gear and 305 planet gear carrier.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a track speed-limiting brake device comprises a fixed end 1 and a rotating end 2 which rotate coaxially, a pressure oil cavity 101 is arranged inside the fixed end 1 along the axis, a plurality of groups of piston cavities 102 are arranged outside the pressure oil cavity 101 in an annular array, the axis of each piston cavity 102 is parallel to the axis of the corresponding pressure oil cavity 101, two ends of each pressure oil cavity 101 and two ends of each piston cavity 102 are respectively communicated, an impeller 105 is rotatably arranged in each pressure oil cavity 101, an input shaft of the impeller 105 is coaxially and fixedly connected with the rotating end 2, a piston 103 is arranged in each piston cavity 102 in a sliding sealing mode, and a through damping hole 107 is arranged on the surface of the piston 103 along;
the rotating end 2 comprises a friction disc 201 and a friction ring 202 which rotate relatively, the friction disc 201 is coaxially and fixedly connected with the impeller 105, the friction ring 202 is coaxially and slidably mounted with the fixed end 1, the friction ring 202 is located in the middle position between the friction disc 201 and the fixed end 1, and a rigid connecting shaft 106 is arranged between the friction ring 202 and the piston 103.
As a preferred technical solution of the present invention, a spring 104 is axially disposed between the piston 103 and the piston cavity 102;
by providing the spring 104, the moving member speed can be reduced to a design threshold and then restored to the original position, so that the friction ring 202 and the friction disc 201 can be separated.
As a preferred technical solution of the present invention, the damping hole 107 is a tapered through hole, and the aperture of the damping hole 107 gradually decreases along the flowing direction of the liquid;
through setting up the tapered through-hole, make hydraulic oil pass through, drive piston 103 along the axis slip, and exert axial force to piston 103, through connecting axle 106 transmission back, drive friction ring 202 extrusion friction disc 201.
As a preferred technical scheme of the utility model, derailleur 3 concatenates between the axis of impeller 105 and friction disc 201, derailleur 3 includes sun gear 302 and bull gear 303 of coaxial arrangement, bull gear 303 and stiff end 1 fixed mounting, sun gear 302 and the coaxial fixed connection of impeller 105, the meshing sets up at least three sets of planet wheel 304 between sun gear 302 and the bull gear 303, the axis position of three sets of planet wheel 304 rotates relatively and sets up planet wheel support 305, the axis of revolution position of planet wheel support 305 sets up input shaft 301, input shaft 301 and friction disc 201 coaxial coupling;
through the speed change structure of the planetary structure, the friction disc 201 is lifted to the rotating speed of the impeller 105, so that the flow speed of pressure oil between the pressure oil chamber 101 and the piston chamber 102 is increased, the axial pressure of the piston 103 is lifted, the friction force between the friction ring 202 and the friction disc 201 is increased, and the braking effect is improved.
When in use: the friction disc 201 is fixed with a rotating part of a moving element, such as a track wheel, the fixed end 1 is directly fixed with a fixed part of the moving element, when the moving element moves, the roller drives the impeller 105 to rotate, the hydraulic oil is driven to circulate in the pressure oil chamber 101 and the piston chamber 102, when the hydraulic oil passes through the damping hole 107, axial thrust is generated on the piston 103, when the rotating speed of the roller is lower than a design threshold value, the axial force of the piston 103 is equal to the static friction force of the piston 103, when the speed of the roller is gradually increased, the flow rate of the hydraulic oil inside is increased, so that the flow rate in the damping hole 107 is increased, the axial force borne by the piston 103 is increased, when the axial force is greater than the maximum static friction force of the piston, the piston 103 is pushed to move axially, the friction ring 202 and the friction disc 201 are squeezed to generate friction force, so that the speed is reduced, and the higher the rotating speed of, that is, the larger the friction force between the friction ring 202 and the friction disc 201, the larger the brake braking force;
after the speed of the moving element is reduced, the flow rate of the internal hydraulic oil is reduced, the axial force of the piston 103 is reduced at the moment, the piston 103 is gradually reset under the action of the spring 104, so that the friction force between the friction ring 202 and the friction disc 201 is reduced, the braking mode completely depends on the self moving speed of the moving element, external force input is not needed, the influence of power failure and program confusion is avoided, and the stability of the moving speed of the moving element is effectively ensured.
Meanwhile, the mechanism can be applied to other motion equipment with rollers besides being applied to track speed limitation.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a track speed limit brake equipment, includes earlier to coaxial pivoted stiff end (1) and rotation end (2), its characterized in that: a pressure oil cavity (101) is arranged inside the fixed end (1) along an axis, a plurality of groups of piston cavities (102) are arranged outside the pressure oil cavity (101) in an annular array, the axis of each piston cavity (102) is parallel to the axis of the pressure oil cavity (101), two ends of each pressure oil cavity (101) and two ends of each piston cavity (102) are respectively communicated, an impeller (105) is rotationally arranged in each pressure oil cavity (101), an input shaft of the impeller (105) is coaxially and fixedly connected with the rotating end (2), a piston (103) is arranged in each piston cavity (102) in a sliding sealing mode, and a through damping hole (107) is arranged on the surface of the piston (103) along the axis;
the rotating end (2) comprises a friction disc (201) and a friction ring (202) which rotate relatively, the friction disc (201) is coaxially and fixedly connected with the impeller (105), the friction ring (202) is coaxially and slidably mounted with the fixed end (1), the friction ring (202) is located in the middle of the friction disc (201) and the fixed end (1), and a rigid connecting shaft (106) is arranged between the friction ring (202) and the piston (103).
2. The track speed-limiting brake device of claim 1, wherein: and a spring (104) is arranged between the piston (103) and the piston cavity (102) along the axial direction.
3. The track speed-limiting brake device of claim 1, wherein: the damping hole (107) is a conical through hole, and the aperture of the damping hole (107) is gradually reduced along the liquid flowing direction.
4. The track speed-limiting brake device of claim 1, wherein: the transmission (3) is connected in series between the axes of the impeller (105) and the friction disc (201), the transmission (3) comprises a sun gear (302) and a large gear ring (303) which are coaxially arranged, the large gear ring (303) is fixedly installed with the fixed end (1), the sun gear (302) is coaxially and fixedly connected with the impeller (105), at least three groups of planet gears (304) are meshed between the sun gear (302) and the large gear ring (303), a planet gear support (305) is arranged at the axis position of the three groups of planet gears (304) in a relative rotating mode, an input shaft (301) is arranged at the rotation axis position of the planet gear support (305), and the input shaft (301) is coaxially connected with the friction disc (201).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020237858.0U CN211715593U (en) | 2020-03-02 | 2020-03-02 | Track speed limiting brake device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020237858.0U CN211715593U (en) | 2020-03-02 | 2020-03-02 | Track speed limiting brake device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211715593U true CN211715593U (en) | 2020-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020237858.0U Active CN211715593U (en) | 2020-03-02 | 2020-03-02 | Track speed limiting brake device |
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| CN (1) | CN211715593U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116924178A (en) * | 2023-09-14 | 2023-10-24 | 河南心连心化学工业集团股份有限公司 | Speed limiting braking device |
-
2020
- 2020-03-02 CN CN202020237858.0U patent/CN211715593U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116924178A (en) * | 2023-09-14 | 2023-10-24 | 河南心连心化学工业集团股份有限公司 | Speed limiting braking device |
| CN116924178B (en) * | 2023-09-14 | 2023-12-08 | 河南心连心化学工业集团股份有限公司 | Speed limiting braking device |
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