CN114189101A - Connecting rod brake mechanism, rotor speed reduction system and rotor speed reduction method - Google Patents
Connecting rod brake mechanism, rotor speed reduction system and rotor speed reduction method Download PDFInfo
- Publication number
- CN114189101A CN114189101A CN202010965647.3A CN202010965647A CN114189101A CN 114189101 A CN114189101 A CN 114189101A CN 202010965647 A CN202010965647 A CN 202010965647A CN 114189101 A CN114189101 A CN 114189101A
- Authority
- CN
- China
- Prior art keywords
- rotor
- brake
- connecting rod
- brake mechanism
- ball
- 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.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/102—Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction brakes
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention provides a connecting rod brake mechanism, a rotor speed reduction system and a rotor speed reduction method. The connecting rod brake mechanism includes: the rocker arm comprises a fulcrum part hinged on the bracket, and a rigid arm and an elastic arm which are positioned on different sides of the fulcrum part; a brake shoe for friction braking; one end of the actuating cylinder is hinged on the bracket, and the other end of the actuating cylinder is hinged with the rigid arm; the resilient arm and the brake shoe are connected by a hinge having at least two rotational degrees of freedom. The rotor deceleration system comprises a support and a plurality of link brake mechanisms which are uniformly and symmetrically distributed relative to the axis of the rotor. The rotor deceleration method provides a plurality of connecting rod brake mechanisms for friction braking of the rotor; the connecting rod brake mechanism can follow the larger vibration displacement of the rotor through the elastic element; the eccentric load during braking is reduced and the elastic restoring force is provided to enable the rotor to return to the center by circumferentially and uniformly and symmetrically distributing a plurality of connecting rod brake mechanisms; the brake shoe is made to accommodate lateral and angular oscillations of the rotor by means of a hinge having at least two rotational degrees of freedom.
Description
Technical Field
The invention relates to the technical field of brakes, in particular to a connecting rod brake mechanism, a rotor deceleration system and a rotor deceleration method.
Background
The flexible rotor, such as the low-pressure rotor of an aircraft engine with a large bypass ratio, has blades on the rotor to fall off or mass to fly off, or can generate a large unbalance amount due to foreign object impact and the like, the rotor can generate large bending and vibration under the large unbalance amount and the inertia of the rotor, the maximum transverse (radial) vibration displacement of the rotor can reach dozens of millimeters or even dozens of millimeters, and in order to ensure the safety of the rotor, the vibration of the rotor needs to be limited and the rotating speed of the rotor needs to be rapidly reduced.
When large vibration displacement occurs, a rigid braking system is adopted, so that a large impact load is generated between the rotor and the braking system, and the rotor or the braking system is damaged.
Conventional brake mechanisms, such as drum brakes disclosed in the patent publication CN110905952A and disc brakes disclosed in the patent publication US20100000827a1, are generally suitable for use in applications where there is only a small vibrational displacement of the rotating member being braked, and where the brake pads are generally mounted on a rigid structure and are not suitable for use in applications where there is a large lateral or angular movement of the rotating member.
Disclosure of Invention
The invention aims to provide a connecting rod brake mechanism, a rotor speed reduction system and a rotor speed reduction method, so as to realize safe speed reduction of a flexible rotor with large inertia under extreme conditions of large deformation, large vibration displacement, impact and the like.
To achieve the above object, a link brake mechanism for mounting on a bracket for braking a rotor, includes: the actuator cylinder is provided with two ends, wherein one end is a base end for mounting, and the other end is an output end for outputting linear motion; the rocker arm comprises a fulcrum part, a rigid arm and an elastic arm which are positioned on different sides of the fulcrum part; the brake shoe comprises a brake pad, and the brake pad is used for performing friction braking on the rotor; one end of the actuating cylinder is hinged to the support, the other end of the actuating cylinder is hinged to the rigid arm, the elastic arm is connected with the brake shoe through a hinged portion, the hinged portion has at least two rotational degrees of freedom, and the fulcrum portion is hinged to the support.
In one or more embodiments of the connecting rod brake mechanism, the fluid filled in the actuating cylinder is compressible fluid.
In one or more embodiments of the link brake mechanism, the actuator cylinder is a pneumatic actuator cylinder.
In one or more embodiments of the lever brake mechanism, the hinge portion is a ball joint.
In one or more embodiments of the link brake mechanism, the ball hinge includes a pin, a ball, and a ball shell, the pin penetrates and connects with the ball, the ball shell encloses the ball, the pin can rotate around an axis or swing angularly relative to the ball shell, one of the brake shoe and the elastic arm is connected with the pin, and the other is connected with the ball shell.
In one or more embodiments of the link brake mechanism, the ball joint includes a ball body and a ball housing, the ball housing encloses the ball body, one of the brake shoe and the resilient arm is connected to the ball body, and the other is connected to the ball housing.
In one or more embodiments of the lever brake mechanism, the brake pad has a shape following the rotor.
In one or more embodiments of the lever brake mechanism, the resilient arm is arranged to extend tangentially of the rotor.
The connecting rod brake mechanism drives the rocker arm to rotate around the fulcrum part through the extension of the piston rod of the actuator cylinder, so that the rocker arm drives the brake shoe to move, a brake pad of the brake shoe compresses the surface of the rotor, friction force and friction torque are generated, and the rotor is decelerated. The connecting rod brake mechanism can always follow the vibration of the rotor when the rotor has larger vibration displacement by introducing the elastic arm with variable rigidity, and the elastic restoring force is generated by the elastic deformation of the elastic arm, so that the brake shoe keeps pressing the surface of the rotor, and the rotating speed of the rotor is reduced quickly and safely. The brake shoe is hinged with the elastic arm through the hinged part with at least two rotational degrees of freedom, so that the brake shoe can be effectively attached to the surface of the rotor when the rotor has transverse vibration and angular swing, the contact area is increased, the condition of line contact is avoided, the braking effect is improved, and the additional torque applied to the connecting rod braking mechanism is reduced. The connecting rod brake mechanism is simple in structure, convenient to process and assemble and convenient to operate, safe speed reduction of the flexible rotor with large inertia under extreme conditions of large deformation, large vibration displacement, impact and the like can be effectively realized, vibration of the rotor is reduced, and stability and safety of rotor operation are improved.
The rotor speed reduction system for achieving the purpose comprises the bracket and a plurality of the connecting rod brake mechanisms, wherein the connecting rod brake mechanisms are uniformly and symmetrically distributed relative to the axis of the rotor.
In one or more embodiments of the rotor retarding system, the rotor has a cylindrical surface, the bracket surrounds the cylindrical surface, and four of the lever brake mechanisms are respectively mounted to the bracket.
In one or more embodiments of the rotor retarding system, the rotor is a low pressure rotor of a turbine engine.
This rotor deceleration system reduces the unbalance loading when braking through a plurality of even and symmetric distribution's connecting rod brake mechanism, when the rotor leads to off-centre because big vibration displacement, provide elastic restoring force, make the rotor return its center of rotation, and connecting rod brake mechanism can follow the lateral vibration and the angular oscillation of rotor, the quick safe speed reduction of control rotor, reduce the vibration of rotor, improve rotor moving stability and security, realize effectively that big inertia's flexible rotor is having big deformation, great vibration displacement and impact etc. extreme condition under the safe speed reduction.
In order to realize the rotor speed reduction method of the purpose, a plurality of connecting rod brake mechanisms are provided, and the connecting rod brake mechanisms carry out friction braking on the rotor through brake shoes; by introducing the elastic element into the connecting rod brake mechanism, when the rotor has larger vibration displacement, the connecting rod brake mechanism can follow the vibration of the rotor and has a deceleration effect; the plurality of connecting rod brake mechanisms are uniformly and symmetrically distributed in the circumferential direction to control the rotor to decelerate, reduce the unbalance load during braking, provide elastic restoring force to enable the rotor to return to the rotation center of the rotor and reduce the vibration of the rotor; the hinge part with at least two rotational degrees of freedom is introduced into the connection position of the brake shoe, so that the brake shoe can adapt to the transverse vibration and the angular swing of the rotor, the compression area of the brake shoe is ensured, and the braking effect is improved.
In one or more embodiments of the method for decelerating a rotor, a resilient arm extending in a tangential direction of the rotor is provided to connect the brake shoe, applying a pressing force to the brake shoe, thereby reducing an impact of the link brake mechanism on the rotor.
In one or more embodiments of the rotor deceleration method, in order to ensure that the brake shoe can always press the surface of the rotor without disengaging when the rotor has large vibration displacement, thereby achieving a braking effect, the vibration displacement of the rotor is compensated by the following compensation method: the maximum vibration displacement of the rotor is L1(ii) a The deformation displacement required by the elastic arm enables the displacement generated by the brake shoe to be L2(ii) a The initial distance between the brake shoe and the rotor is L3(ii) a The extension of the actuating cylinder of the connecting rod brake mechanism enables the pressing displacement generated by the brake shoe to be L, and L is more than or equal to (L)1+L2+L3)。
The rotor deceleration method can effectively realize safe deceleration of the flexible rotor with large inertia under the extreme conditions of large deformation, large vibration displacement, impact and the like, reduce the vibration of the rotor and improve the stability and the safety of the operation of the rotor.
Drawings
The above and other features, properties and advantages of the present invention will become more apparent from the following description of the embodiments with reference to the accompanying drawings, in which:
FIG. 1 is a schematic illustration of a rotor retarding system in accordance with one or more embodiments.
FIG. 2 is a schematic illustration of a link brake mechanism according to one or more embodiments.
Figure 3 is a schematic diagram of a structure of a hinge according to one embodiment.
Figure 4 is a schematic view of a hinge according to another embodiment.
Detailed Description
The following discloses many different embodiments or examples for implementing the subject technology described. Specific examples of components and arrangements are described below to simplify the present disclosure, but these are merely examples and do not limit the scope of the invention. For example, if a first feature is formed over or on a second feature described later in the specification, this may include embodiments in which the first and second features are formed in direct contact, and may also include embodiments in which additional features are formed between the first and second features, such that the first and second features may not be in direct contact. Additionally, reference numerals and/or letters may be repeated among the various examples throughout this disclosure. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. Further, when a first element is described as being coupled or coupled to a second element, the description includes embodiments in which the first and second elements are directly coupled or coupled to each other, as well as embodiments in which one or more additional intervening elements are added to indirectly couple or couple the first and second elements to each other. It is to be noted that the drawings are designed solely as examples and are not to scale and should not be construed as limiting the scope of the invention as it may be practiced. In the description of the present invention, it is to be understood that the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. Further, the conversion methods in the different embodiments may be appropriately combined.
As shown in fig. 1 and 2, the link brake mechanism 100 of the present invention is adapted to be mounted on a frame 2 to brake a rotor 1, and the link brake mechanism 100 includes an actuator cylinder 3, a rocker arm 4, and a brake shoe 5.
The rocker arm 4 comprises a fulcrum portion 402, and a rigid arm 401 and a resilient arm 403 located on different sides of the fulcrum portion 402. The fulcrum portion 402 is hinged to the bracket 2, and the elastic arm 403 may be a plate spring-like structure, which provides a certain amount of flexibility, so as to compensate for the vibration displacement of the rotor 1 within a certain displacement range.
The actuator cylinder 3 has two ends, one end 301 of which is hinged to the bracket 2 as a base end for mounting, and the other end 303 of which is hinged to a rigid arm 401 as an output end for outputting linear motion.
The brake shoe 5 includes a brake pad mounting block 502 and a brake pad 503. The brake pad 503 is used for friction braking of the rotor 1, the brake pad mounting seat 502 is used for mounting the brake pad 503 and is hinged with the elastic arm 403 through the hinge portion 501, the hinge portion 501 has at least two rotational degrees of freedom, for example, the hinge portion 501 can be configured as a spherical pair, a ball-and-pin pair, or other universal connection mechanism.
When the connecting rod brake mechanism 100 works, the piston rod 302 of the actuating cylinder 3 extends to drive the rocker arm 4 to rotate around the fulcrum part 402, so that the rocker arm 4 drives the brake shoe 5 to move, the brake pad 503 of the brake shoe 5 presses the surface of the rotor 1, friction force and friction torque are generated, and the rotor 1 is decelerated. By introducing the elastic arm 403 with variable rigidity, the connecting rod brake mechanism 100 can always follow the vibration of the rotor 1 when the rotor 1 has large vibration displacement, and the elastic deformation of the elastic arm 403 generates elastic restoring force, so that the brake shoe 5 keeps pressing the surface of the rotor 1, thereby quickly and safely reducing the rotating speed of the rotor 1. The brake shoe 5 is hinged with the elastic arm 403 through the hinge part 501 with at least two rotational degrees of freedom, so that the brake shoe 5 can be effectively attached to the surface of the rotor 1 when the rotor 1 has transverse vibration and angular swing, the contact area is increased, the condition of line contact is avoided, the braking effect is improved, and the additional torque applied to the connecting rod brake mechanism 100 is reduced. The connecting rod brake mechanism 100 is simple in structure, convenient to process and assemble and convenient to operate, safe deceleration of the flexible rotor 1 with large inertia under extreme conditions of large deformation, large vibration displacement, impact and the like can be effectively realized, vibration of the rotor 1 is reduced, and stability and safety of operation of the rotor 1 are improved.
With continued reference to fig. 1 and 2, the fluid filled in the actuator cylinder 3 is a compressible fluid, such as gas, thereby providing the actuator cylinder 3 with a certain degree of flexibility, thereby further improving the flexibility of the connecting rod brake mechanism 100, so that the connecting rod brake mechanism 100 can better follow the vibration of the rotor 1 when the rotor 1 has a large vibration displacement, and can adjust the compression displacement and pressing force of the brake shoe 5 by adjusting the pressure of the fluid filled in the actuator cylinder 3.
The brake block 503 is made of high temperature resistant material and has a shape following the outer surface of the rotor 1, so that the contact area between the brake block 503 and the rotor 1 can be better ensured, and the braking effect is improved.
Referring to fig. 3, in one embodiment, hinge 501 is a spherical hinge, comprising pin 505, sphere 506, and spherical shell 507. The pin 505 penetrates and is connected with the sphere 506, and the spherical shell 507 contains the sphere 506. In this embodiment, the ball hinge forms a ball pin pair, and has two rotational degrees of freedom, the pin 505 can rotate around the axis or swing angularly relative to the ball housing 507, one of the brake shoe 5 and the elastic arm 403 is connected to the pin 505, and the other is connected to the ball housing 507, so that the brake shoe 5 can adapt to the lateral vibration and the angular swing of the rotor 1, the pressing area of the brake shoe 5 is ensured, the braking effect is improved, and the additional torque applied to the link brake mechanism 100 is reduced.
Referring to fig. 4, in another embodiment, hinge 501 is a spherical hinge, and includes a sphere 506 ', a spherical shell 507', a first connection end 508, and a second connection end 509, with spherical shell 507 'housing sphere 506', and first connection end 508 and second connection end 509 connected to sphere 506 'and spherical shell 507', respectively. In this embodiment, the spherical hinge forms a spherical pair having three rotational degrees of freedom, the spherical shell 507 'can rotate and swing in multiple directions relative to the spherical body 506', one of the brake shoe 5 and the elastic arm 403 is connected to the spherical body 506 'through the first connection end 508, and the other is connected to the spherical shell 507' through the second connection end 509, so that the brake shoe 5 can adapt to the lateral vibration and the angular swing of the rotor 1, the pressing area of the brake shoe 5 is ensured, the braking effect is improved, and the additional torque applied to the connecting rod brake mechanism 100 is reduced.
With continued reference to fig. 1 and 2, the resilient arms 403 are arranged to extend in a tangential or near tangential direction of the rotor 1, whereby the brake shoes 5 can be carried by the resilient arms 403 to exert a pressing force in the tangential direction of the rotor 1, which effectively reduces the impact of the lever brake mechanism 100 on the rotor 1 compared to the prior art in which the brake shoes are pressed in a radial direction.
The rotor deceleration system 200 of the present invention is shown in fig. 1, and includes a bracket 1 and a plurality of link brake mechanisms 100, and the plurality of link brake mechanisms 100 are uniformly and symmetrically distributed with respect to the axis of the rotor 1. Therefore, the unbalance loading during braking can be reduced through the plurality of connecting rod brake mechanisms 100 which are uniformly and symmetrically distributed, when the rotor 1 is eccentric due to large vibration displacement, the elastic restoring force is provided, the rotor 1 returns to the rotation center of the rotor, the connecting rod brake mechanisms 100 can follow the transverse vibration and the angular swing of the rotor 1, the rotor 1 is controlled to decelerate fast and safely, the vibration of the rotor 1 is reduced, the stability and the safety of the operation of the rotor 1 are improved, and the safe deceleration of the flexible rotor 1 with large inertia under the extreme conditions of large deformation, large vibration displacement, impact and the like is effectively realized.
The rotor deceleration system 200 may be used for deceleration of a low pressure rotor of a turbine engine, the low pressure rotor being a rotor 1 having a cylindrical surface around which a bracket 1 is disposed, the bracket 1 being fixed to or being a part of a stator case, a plurality of link brake mechanisms 100 being respectively mounted on the bracket 1. In the embodiment shown in fig. 1, the number of the link brake mechanisms 100 is four, and in other embodiments, the number of the link brake mechanisms 100 may be more or less than four. Therefore, the rotating speed of the low-pressure rotor can be quickly, safely and effectively reduced under the extreme conditions of large deformation, large vibration displacement, impact and the like of the low-pressure rotor, and the stability and the safety of the operation of the low-pressure rotor are improved.
As can be understood from the above embodiments, the rotor deceleration method of the present invention provides a plurality of link brake mechanisms 100, the link brake mechanisms 100 frictionally braking the rotor 1 through the brake shoes 5; by introducing the elastic elements (the elastic arms 403 and the telescopic actuating cylinder 3) into the connecting rod brake mechanism 100, the connecting rod brake mechanism 100 can follow the vibration of the rotor 1 when the rotor 1 has large vibration displacement, and has a deceleration effect; the plurality of connecting rod brake mechanisms 100 are uniformly and symmetrically distributed in the circumferential direction to control the rotor 1 to decelerate, reduce the unbalance load during braking, provide elastic restoring force to enable the rotor 1 to return to the rotation center of the rotor, and reduce the vibration of the rotor 1; the hinge part 501 with at least two rotational degrees of freedom is introduced at the joint of the brake shoe 5, so that the brake shoe 5 can adapt to the transverse vibration and the angular swing of the rotor 1, the compression area of the brake shoe 5 is ensured, and the braking effect is improved. Therefore, the rotor deceleration method can effectively realize safe deceleration of the flexible rotor 1 with large inertia under the extreme conditions of large deformation, large vibration displacement, impact and the like, reduce the vibration of the rotor 1 and improve the stability and the safety of the operation of the rotor 1.
The rotor deceleration method further provides the elastic arm 403 extending in the tangential direction of the rotor 1 to connect the brake shoe 5, whereby the brake shoe 5 can be driven by the elastic arm 403 to apply a pressing force in the tangential direction of the rotor 1, and the impact of the link brake mechanism 100 on the rotor 1 can be effectively reduced compared to the prior art in which the brake shoe is pressed in the radial direction.
In order to ensure that the brake shoe 5 can always press the surface of the rotor 1 without being disengaged when the rotor 1 has large vibration displacement, thereby playing a braking effect, the vibration displacement of the rotor 1 needs to be compensated, and the compensation method comprises the following steps:
1. the compression displacement of the brake shoe 5 by extension of the piston rod 302 of the actuator cylinder 3 is L, which can be adjusted by adjusting the pressure of the fluid charged in the actuator cylinder 3;
2. maximum vibration displacement of rotor is L1The initial distance between the brake shoe 5 and the rotor 1 is L3；
3. According to the braking torque requirement of the brake rotor 1The positive pressure P and the stiffness K of the resilient arms 403, a displacement L of the brake shoe 5 caused by the required deformation displacement of the resilient arms 403 is obtained2，L2In the opposite direction to L, i.e. the displacement that the brake shoe 5 can actually achieve is (L-L)2)；
4. In order to ensure that the brake shoes 5 are always pressed against the surface of the rotor 1 without being released when the rotor 1 is subjected to a large vibration displacement, the displacement (L-L) which the brake shoes 5 can actually achieve is ensured2)≥(L1+L3) I.e. the required pressing displacement L of the brake shoe 5 is not less than (L)1+L2+L3)。
Thus, by adjusting the pressure of the fluid charged in the ram 3 or/and the stiffness K of the elastic arms 403, the vibrational displacement of the rotor 1 can be compensated.
Although the present invention has been disclosed in terms of the preferred embodiment, it is not intended to limit the invention, and variations and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention. Therefore, any modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope defined by the claims of the present invention, unless the technical essence of the present invention departs from the content of the present invention.
Claims (14)
1. Connecting rod brake mechanism for install on the support, brake the rotor, its characterized in that includes:
the actuator cylinder is provided with two ends, wherein one end is a base end for mounting, and the other end is an output end for outputting linear motion;
the rocker arm comprises a fulcrum part, a rigid arm and an elastic arm which are positioned on different sides of the fulcrum part; and
the brake shoe comprises a brake pad, and the brake pad is used for performing friction braking on the rotor;
one end of the actuating cylinder is hinged to the support, the other end of the actuating cylinder is hinged to the rigid arm, the elastic arm is connected with the brake shoe through a hinged portion, the hinged portion has at least two rotational degrees of freedom, and the fulcrum portion is hinged to the support.
2. The connecting rod brake mechanism as claimed in claim 1, wherein the fluid filled within the actuator cylinder is a compressible fluid.
3. The connecting rod brake mechanism as claimed in claim 2, wherein the actuator cylinder is a pneumatic actuator cylinder.
4. The connecting rod brake mechanism as claimed in claim 1, wherein the hinge portion is a ball joint.
5. The connecting rod brake mechanism according to claim 4, wherein the ball hinge includes a pin, a ball, and a ball housing, the pin penetrates and connects to the ball, the ball housing encloses the ball, the pin can rotate around an axis or swing angularly relative to the ball housing, one of the brake shoe and the elastic arm is connected to the pin, and the other is connected to the ball housing.
6. The lever brake mechanism of claim 4, wherein the ball hinge includes a ball body and a ball housing, the ball housing enclosing the ball body, one of the brake shoe and the resilient arm being connected to the ball body and the other being connected to the ball housing.
7. The connecting rod brake mechanism of claim 1, wherein the brake pad has a shape that follows the rotor.
8. The connecting rod brake mechanism as claimed in claim 1, wherein the resilient arm is provided to extend tangentially of the rotor.
9. Rotor deceleration system, characterized in that it comprises said support and a plurality of link brake mechanisms according to any one of claims 1 to 8, uniformly and symmetrically distributed with respect to the axis of said rotor.
10. The rotor retarding system of claim 9, wherein the rotor has a cylindrical surface, the bracket surrounds the cylindrical surface, and four of the linkage brake mechanisms are mounted to the bracket, respectively.
11. The rotor retarding system of claim 9, wherein the rotor is a low pressure rotor of a turbine engine.
12. A method for decelerating a rotor, characterized in that,
providing a plurality of connecting rod brake mechanisms, wherein the connecting rod brake mechanisms perform friction braking on the rotor through brake shoes;
by introducing the elastic element into the connecting rod brake mechanism, when the rotor has larger vibration displacement, the connecting rod brake mechanism can follow the vibration of the rotor and has a deceleration effect;
the plurality of connecting rod brake mechanisms are uniformly and symmetrically distributed in the circumferential direction to control the rotor to decelerate, reduce the unbalance load during braking, provide elastic restoring force to enable the rotor to return to the rotation center of the rotor and reduce the vibration of the rotor;
the hinge part with at least two rotational degrees of freedom is introduced into the connection position of the brake shoe, so that the brake shoe can adapt to the transverse vibration and the angular swing of the rotor, the compression area of the brake shoe is ensured, and the braking effect is improved.
13. A method of decelerating a rotor as claimed in claim 12, wherein resilient arms extending in a tangential direction of the rotor are provided to engage the brake shoes, applying a compressive force to the brake shoes, thereby reducing the impact of the link brake mechanism on the rotor.
14. A method of decelerating a rotor as claimed in claim 12, wherein the vibrational displacement of the rotor is compensated for in order to ensure that the brake shoes are always pressed against the surface of the rotor without disengaging and thereby providing a braking effect when there is a large vibrational displacement of the rotor by:
the maximum vibration displacement of the rotor is L1；
The deformation displacement required by the elastic arm enables the displacement generated by the brake shoe to be L2；
The initial distance between the brake shoe and the rotor is L3；
The extension of the actuating cylinder of the connecting rod brake mechanism enables the pressing displacement generated by the brake shoe to be L, and L is more than or equal to (L)1+L2+L3)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010965647.3A CN114189101B (en) | 2020-09-15 | 2020-09-15 | Connecting rod brake mechanism, rotor speed reduction system and rotor speed reduction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010965647.3A CN114189101B (en) | 2020-09-15 | 2020-09-15 | Connecting rod brake mechanism, rotor speed reduction system and rotor speed reduction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114189101A true CN114189101A (en) | 2022-03-15 |
| CN114189101B CN114189101B (en) | 2023-03-31 |
Family
ID=80539123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010965647.3A Active CN114189101B (en) | 2020-09-15 | 2020-09-15 | Connecting rod brake mechanism, rotor speed reduction system and rotor speed reduction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114189101B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115091496A (en) * | 2022-08-08 | 2022-09-23 | 浙江诸暨永勤机械有限公司 | Industrial robot capable of flexibly clamping at multiple angles |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201068360Y (en) * | 2007-07-11 | 2008-06-04 | 苏州通润驱动设备股份有限公司 | Thin type permanent magnetism synchronization gear wheel free traction machine |
| CN103925314A (en) * | 2014-03-31 | 2014-07-16 | 黄恩权 | Multi-shoe integral brake |
| CN205616499U (en) * | 2016-05-16 | 2016-10-05 | 大庆油田有限责任公司采油工程研究院 | Belt arresting gear and use its flexible machine |
-
2020
- 2020-09-15 CN CN202010965647.3A patent/CN114189101B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201068360Y (en) * | 2007-07-11 | 2008-06-04 | 苏州通润驱动设备股份有限公司 | Thin type permanent magnetism synchronization gear wheel free traction machine |
| CN103925314A (en) * | 2014-03-31 | 2014-07-16 | 黄恩权 | Multi-shoe integral brake |
| CN205616499U (en) * | 2016-05-16 | 2016-10-05 | 大庆油田有限责任公司采油工程研究院 | Belt arresting gear and use its flexible machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115091496A (en) * | 2022-08-08 | 2022-09-23 | 浙江诸暨永勤机械有限公司 | Industrial robot capable of flexibly clamping at multiple angles |
| CN115091496B (en) * | 2022-08-08 | 2023-01-31 | 浙江诸暨永勤机械有限公司 | Industrial robot capable of flexibly clamping at multiple angles |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114189101B (en) | 2023-03-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100374669B1 (en) | Brake caliper unit for vehicle and especially rail vehicle disc brakes | |
| CN106489039B (en) | Disk brake, caliper and the brake lining group for disk brake | |
| CN114189101B (en) | Connecting rod brake mechanism, rotor speed reduction system and rotor speed reduction method | |
| US8757330B2 (en) | Pneumatic disc brake device for railway rolling stock | |
| US8844682B2 (en) | Electromechanical aircraft brake with tiltable actuators | |
| KR20160060710A (en) | Brake apparatus | |
| JP5080574B2 (en) | Brake device | |
| KR20180101231A (en) | Elliptically interfacing gear assisted braking system | |
| JPH11512508A (en) | Improvement of electrically actuated disc brakes in cars | |
| JP2010071337A (en) | Brake torque rod mechanism of disc brake | |
| JP5118654B2 (en) | Disc brake device | |
| CN109073001A (en) | Brake clamp device and the vehicle for using the brake clamp device | |
| US4420065A (en) | Railway brakes | |
| US4596313A (en) | Centering device for floating caliper brakes | |
| JP4909948B2 (en) | Caliper brake device | |
| JPS6182027A (en) | Disc brake | |
| JPH11263223A (en) | Caliper brake | |
| JP2008151168A (en) | Disk brake device | |
| US8079448B2 (en) | Axle shaft including an electromechanically or pneumatically actuated disc brake | |
| JPH11193835A (en) | Air disc brake | |
| US11794878B2 (en) | Assembly provided with a disconnectable coupling system having a mechanical fuse and a friction brake | |
| JP4939441B2 (en) | Brake arm support structure | |
| KR102295466B1 (en) | Disc brake device for railway vehicle | |
| WO2024071318A1 (en) | Electric braking device | |
| JP4980302B2 (en) | Caliper brake device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |