CN110185722B

CN110185722B - Braking device

Info

Publication number: CN110185722B
Application number: CN201910467072.XA
Authority: CN
Inventors: 刘毅; 杨建平; 申检宏; 安鸿; 肖维远; 申燕飞; 王开恩; 吕亮; 毛富英; 谢磊; 韦雪丽; 刘萍; 欧东方; 时云霄; 吴吉恒
Original assignee: Meishan CRRC Brake Science and Technology Co Ltd
Current assignee: Meishan CRRC Brake Science and Technology Co Ltd
Priority date: 2019-05-30
Filing date: 2019-05-30
Publication date: 2021-02-02
Anticipated expiration: 2039-05-30
Also published as: CN110185722A

Abstract

The invention provides a braking device, which relates to the technical field of braking and comprises: the lock comprises a base provided with a through hole, a lock ring arranged on the wall of the through hole and a driving device. The locking ring is used for being sleeved on the braking member to be braked after the braking member penetrates through the through hole. When braking is needed to be carried out on the braking piece to be braked, the locking ring is provided with the notch, the linear driving device is controlled to push one end part of the locking ring with the notch to be close to the other end part, and therefore the inner diameter of the locking ring is reduced and is tightly attached to the braking piece to be braked so as to limit the braking piece to stop moving or limit the braking piece to move. The braking device can stop and brake the braking member for a long time, improves automation by controlling the driving device, avoids low-efficiency operation that an operator needs to screw the braking system one by one, and simultaneously improves the application range of the braking device.

Description

Braking device

Technical Field

The invention relates to the technical field of braking, in particular to a braking device.

Background

With the rapid development of economy in China, commodity trade shows the characteristics of large quantity and dense traffic. When a large amount of goods need to be transported over a long distance, the conventional automobile cannot meet the requirement. Railway freight is therefore the primary mode of transportation.

The existing railway freight car braking system is provided with two braking systems of a brake cylinder and a hand brake. The hand brake is mainly applied to the situation that the truck needs to stay on a slope for a long time, and the hand brake needs to be tightened to complete parking at the moment in order to avoid leakage caused by long-time braking of the brake cylinder and natural release and loss of braking effect.

However, the mode of providing the braking force by the existing hand brake depends on an operator, so that the braking force is possibly smaller due to the difference of the operating force of the operator, the whole train needs to be manually braked one by one, time and labor are wasted, and the efficiency is low.

Disclosure of Invention

The present invention is directed to provide a brake device to solve the problems of unreliable braking and low automation of the conventional hand brake.

In order to achieve the above purpose, the embodiment of the present invention adopts the following technical solutions:

in one aspect of the embodiments of the present invention, there is provided a brake apparatus including: the lock comprises a base provided with a through hole, a locking ring arranged on the wall of the through hole and a linear driving device; the braking member penetrates through the through hole, the locking ring is provided with a notch and is used for being sleeved on the braking member, and the linear driving device is used for pushing one end of the notch to be close to the other end of the notch so as to fasten the braking member.

Optionally, the linear driving device includes a cylinder, and a piston rod disposed in the cylinder; the piston is connected with one end part of the piston rod, the cylinder body is fixedly arranged with the base, and the other end part of the piston rod extends out of the end part of the pushing gap relative to the cylinder body.

Furthermore, a first protrusion and a second protrusion are arranged at two ends of the notch of the lock ring respectively, and the first protrusion and the second protrusion protrude outwards.

Furthermore, a first groove extending towards the base is further formed in the hole wall of the through hole, and the first protrusion and the second protrusion are located in the first groove.

Further, the braking device also comprises a wedge; the slide wedge is located first recess, and the inclined plane setting of slide wedge is kept away from first bellied one side at the second arch, and the piston rod is connected and is kept away from first bellied one side at the slide wedge.

Furthermore, the braking device also comprises a movable block, the movable block is provided with a second groove, the second groove is a V-shaped groove, and two inner groove walls of the V-shaped groove are correspondingly abutted with the first protrusion and the second protrusion respectively; the side wall of the movable block is provided with another inclined plane which is mutually matched with the inclined plane of the wedge.

Optionally, the piston is connected to the cylinder by a resilient member for providing a force to the piston towards the locking collar to cause the end of the piston rod to push against the end of the gap.

Optionally, a limiting protrusion is further arranged on the ring wall of the lock ring, a limiting groove is formed in the base corresponding to the limiting protrusion, and the limiting protrusion is accommodated in the limiting groove and used for limiting the lock ring to rotate relative to the inner wall of the through hole.

Further, still be provided with storage chamber on the base, store up the chamber and communicate with first recess.

The beneficial effects of the invention include:

the present invention provides a brake device including: the lock comprises a base provided with a through hole, a lock ring arranged on the wall of the through hole and a linear driving device. The locking ring is used for being sleeved on the braking member to be braked after the braking member penetrates through the through hole. When the member to be braked normally operates, it can normally move in the interior of the lock ring. When braking is needed to be carried out on the to-be-braked member, the locking ring is provided with the notch, the linear driving device is controlled to push one end part of the locking ring with the notch to be close to the other end part, and therefore the radial distance of the locking ring is shortened, and the locking ring is tightly attached to the to-be-braked member to limit the to-be-braked member to stop moving or limit the to-be-braked member to move. The force transmitted to the end part of the lock ring notch by the control driving device enables the two end parts to be close to and fasten the part to be braked, thereby achieving the purpose of braking or preventing the part to be braked from moving. The braking device can stop and brake the braking member for a long time, improves automation by controlling the driving device, avoids low-efficiency operation that an operator screws the braking system one by one, and simultaneously improves the application range of the braking device.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a braking device according to an embodiment of the present invention;

fig. 2 is a second schematic structural diagram of a braking device according to an embodiment of the present invention;

fig. 3 is a third schematic structural diagram of a braking device according to an embodiment of the present invention;

fig. 4 is a fourth schematic structural diagram of a braking device according to an embodiment of the present invention.

Icon: 100-a member to be braked; 101-a base; 102-a locking ring; 1021-a first protrusion; 1022 — a second projection; 1023-a limit projection; 103-linear driving device; 1031-cylinder body; 1032-a piston rod; 1033-a resilient member; 1034-a piston; 104-a wedge; 105-a movable block; 106-reservoir.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. It should be noted that, in the case of no conflict, various features in the embodiments of the present invention may be combined with each other, and the combined embodiments are still within the scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In one aspect of the embodiments of the present invention, there is provided a brake apparatus, referring to fig. 1, including: the device comprises a base 101 provided with a through hole, a locking ring 102 arranged on the wall of the through hole, and a linear driving device 103; the brake member 100 passes through the through hole, the locking ring 102 has a notch, the locking ring 102 is used for being sleeved on the brake member 100, and the linear driving device 103 is used for pushing one end of the notch to approach to the other end so as to fasten the brake member 100.

Specifically, referring to fig. 1, a brake device is provided with a base 101 having a through hole, and a locking ring 102 provided on a wall of the through hole. When the member to be braked 100 is passed through the through hole, then the member should also be passed through the locking collar 102. A notch is provided in the lock ring 102, as shown in fig. 1, at a lower portion of the lock ring 102. Wherein the linear driving device 103 is controlled to act, so as to output linear motion, and then one end of the notch is pushed to approach the other end, and finally the locking and fastening of the braking piece 100 are realized.

In actual use, the present embodiment does not limit the usage scenario at all, and the following description is given by way of example of the application of the present embodiment to a long-time parking brake system of a railway freight car. The to-be-braked member 100 is a brake cylinder piston rod on the train, and is distinguished from the piston rod 1032 in the present application, so that it is referred to as a train driving rod (i.e., to-be-braked member 100) hereinafter. The brake device in the application is assembled with the train driving rod according to the method. The train driving rod performs axial reciprocating motion in the lock ring 102 in normal operation, after a train is braked, the train needs to stay on a slope for a long time for parking, at the moment, an operator can freely arrange a controller in a cab or a place of the train, and the controller is controlled, so that the linear driving device 103 is driven to perform linear motion and is abutted against one end part of the lock ring 102, the linear driving device 103 continues to move leftwards (up, down, left and right in fig. 1 as reference) after abutment is completed, and then one end part of the lock ring 102 is driven to approach to the other end part, at the moment, the inner diameter of the lock ring 102 is reduced, and a larger and larger fastening force is gradually applied to the train driving rod, so that the train driving rod is finally fastened by the lock ring 102 with the reduced inner diameter, and the motion of the train. The driving device is connected in the application, so that the parking brake can be completed in one step in a controller mode when the brake is needed, the automation of the brake device when the brake device is applied to a train is effectively improved, meanwhile, the application range of the brake device is also improved, and the manual operation that the conventional parking brake system cannot be manually screwed down in sequence under the condition of large outdoor temperature difference is avoided. The brake reliability of the brake device is improved, and the condition that the brake is unreliable due to the fact that the parking force only depends on the force of an operator when the parking brake system is manually screwed up conventionally is avoided.

It should be noted that, firstly, the embodiment does not limit whether the end of the notch of the locking ring 102 has a protrusion, for example, besides that shown in fig. 1, the linear driving device 103 may also act on one end wall of the notch to push the end wall toward the other end wall, so as to achieve the final fastening (locking) of the to-be-locked member 100.

Secondly, the present embodiment does not specifically limit the specific shape of the locking ring 102, and for example, it may be a circular ring (as shown in fig. 1), or may be a directional ring, or other shapes. As long as it can perform a tight braking in cooperation with the member to be braked 100.

Third, the fastening structure of the lock ring 102 in this embodiment can limit the translational movement of the member to be braked 100, and can also limit the rotational movement of the member to be braked 100, which can be determined according to the specific use scenario. The present application is not particularly limited thereto.

Optionally, the linear driving device 103 includes a cylinder 1031 and a piston rod 1032 disposed in the cylinder 1031, and the piston 1034 is connected to one end of the piston rod 1032; the cylinder 1031 is fixed to the base 101, and the other end of the piston rod 1032 protrudes from the end of the pushing notch with respect to the cylinder 1031.

Illustratively, as shown in fig. 2, the linear driving device 103 includes a cylinder 1031, a piston 1034 and a piston rod 1032, wherein, as shown in fig. 3, the cylinder 1031 and the base 101 are fixedly disposed together, the piston 1034 is fixedly disposed with one end portion of the piston rod 1032, the piston 1034 is disposed inside the cylinder 1031, and the end portion of the piston rod 1032 extends relative to the cylinder 1031, so as to push the end portion of the gap close to the other end portion. The piston 1034 driving mode is adopted, so that the manufacturing process is mature, and the driving mode is reliable. First, a seal is inevitably provided between the piston 1034 and the cylinder 1031, and a seal is inevitably provided between the piston rod 1032 and the extension port of the cylinder 1031. Second, the piston 1034 in this embodiment refers to a part that contacts the inner wall of the cylinder 1031 through a gasket, and divides the inside of the cylinder into two inner chambers; the piston rod 1032 refers to a rod having an end portion disposed on the piston 1034, which is capable of being extended or retracted with respect to the cylinder 1031 as the piston 1034 moves.

Further, a first protrusion 1021 and a second protrusion 1022 are respectively disposed at two ends of the notch of the lock ring 102, and the first protrusion 1021 and the second protrusion 1022 protrude outwards.

For example, as shown in fig. 2, in order to prevent the lock ring 102 from moving or rotating on the hole wall, thereby limiting the movement thereof, a first protrusion 1021 and a second protrusion 1022 are respectively disposed at two ends of the notch of the lock ring 102, and the first protrusion 1021 and the second protrusion 1022 protrude outwards. The protrusion can be restricted with the hole wall of the base 101. Having a protrusion, as shown in fig. 1, may provide a larger abutment area for the end of the piston rod 1032 to drive its end, thereby achieving a more secure abutment form and push.

Further, a first groove extending toward the base 101 is further disposed on the wall of the through hole, and the first protrusion 1021 and the second protrusion 1022 are located in the first groove.

For example, in order to make the lock ring 102 not in the braking state completely fit to the hole wall of the through hole and prevent the lock ring from falling off, a first groove is provided at a position where the lock ring 102 has a first protrusion 1021 and a second protrusion 1022. Therefore, the first protrusion 1021 and the second protrusion 1022 of the lock ring 102 can be accommodated in the first protrusion, and at this time, the lock ring 102 can completely fit the hole wall when braking.

Further, the braking device further includes a wedge 104; wedge 104 is located in the first recess, the inclined surface of wedge 104 is disposed on the side of second protrusion 1022 away from first protrusion 1021, and piston rod 1032 is connected to the side of wedge 104 away from first protrusion 1021.

Illustratively, as shown in fig. 2, the braking device further includes a wedge 104, the wedge 104 is connected to the end of the piston rod 1032, the piston rod 1032 is connected to the right side of the wedge 104 in fig. 2, and the wedge 104 is located in the first groove, wherein in order to avoid that the rigid direct abutment easily affects the service life and performance of the lock ring 102, a form in which the wedge 104 has a slope is adopted to simultaneously close the first protrusion 1021 and the second protrusion 1022 through the movable block 105, and the fastening form is mild, which effectively prolongs the service life of the whole braking device.

Further, the braking device further comprises a movable block 105, the movable block 105 is provided with a second groove, the second groove is a V-shaped groove, and two inner groove walls of the V-shaped groove are correspondingly abutted with the first protrusion 1021 and the second protrusion 1022 respectively; another inclined surface is provided on the side wall of the movable block 105 to be engaged with the inclined surface of the wedge 104.

Illustratively, referring to fig. 2, the braking device further includes a movable block 105, the movable block 105 has a second groove, and the second groove is a V-shaped groove, as shown in fig. 2, an end of the first protrusion 1021 abuts against a wall surface of one of the groove walls of the V-shaped groove having an inclination angle, and an end of the second protrusion 1022 abuts against a wall surface of the other groove wall of the V-shaped groove having an inclination angle. In addition, as shown in FIG. 2, a second ramp surface is provided on the side wall of the second recess that mates with the ramp surface of the wedge 104, the two ramp surfaces mating as shown in FIG. 2. It should be noted that the V-shaped groove in the above description is not only in the form of a connection between two opposite groove walls near two ends of the groove bottom, but also in the form of a disconnection (as shown in the form of the movable block 105 in fig. 2).

In practical use, as shown in fig. 2, the end of the piston rod 1032 pushes the wedge 104 to move leftward (with reference to up, down, left and right in fig. 2), the inclined surface of the wedge 104 is in contact with another inclined surface on the side wall of the second groove, as the wedge 104 continues to move leftward, the movable block 105 starts to move upward, and as the inner groove wall in the second groove is an inclined wall with an inclination angle, the two inner inclined walls abutting against the first protrusion 1021 and the second protrusion 1022 will guide the movable block to move toward the groove bottom, so as to reduce the inner diameter of the lock ring 102, thereby achieving final fastening. The form of cooperation that sets up movable block 105 and slide wedge 104 in this embodiment can turn into vertical motion with horizontal motion to being close to the fastening to two archs, making the both ends atress of lock circle 102 more even and mild, preventing that the extrusion of acting suddenly from causing the damage to lock circle 102. The practicability and the reliability of the braking device in the application are further improved.

Optionally, the piston 1034 is connected to the cylinder 1031 by a resilient member 1033, the resilient member 1033 being used to provide a force to the piston 1034 towards the lock ring 102 to cause the end of the piston rod 1032 to push the end of the notch.

For example, it should be noted that, in the first place, the train pipe of a conventional train is connected to the deceleration braking system of the train, and when an operator operates the deceleration braking system to brake the train, the pressure of the train pipe will continuously decrease as the braking time increases. When the cylinder 1031 is connected to the train pipe of the train (on the left side of the cylinder 1031, i.e., the left portion of the piston 1034, as shown in fig. 3), after the braking action of the train occurs (this is a precondition), when the pressure of the train pipe is reduced to a certain pressure, the piston 1034 moves leftward under the push of the elastic member 1033 to move the end of the piston rod 1032 leftward, and the lock ring 102 fastens the train driving rod, as shown in fig. 3. When the train pipe is inflated again, the pressure in the cylinder 1031 rises to drive the piston rod 1032 to move rightward, thereby releasing the brake fastening.

Optionally, a limiting protrusion 1023 is further arranged on the ring wall of the lock ring 102, a limiting groove is formed in the base 101 corresponding to the limiting protrusion 1023, and the limiting protrusion 1023 is accommodated in the limiting groove and used for limiting the lock ring 102 to rotate relative to the inner wall of the through hole.

For example, in order to further prevent the locking ring 102 from rotating on the inner wall of the through hole, as shown in fig. 4, a limiting protrusion 1023 is further disposed on the ring wall of the locking ring 102, a limiting groove is disposed on the base 101 corresponding to the limiting protrusion 1023, and the limiting protrusion 1023 is accommodated in the limiting groove and used for limiting the locking ring 102 to rotate relative to the inner wall of the through hole.

Further, a reservoir 106 is also provided on the base 101, the reservoir 106 being in communication with the first recess.

Illustratively, as shown in fig. 4, a reservoir 106 surrounding the through hole is further provided on the base 101, and the reservoir 106 is communicated with the first groove. After the lubricant is injected into the reservoir 106, the lubricant can flow into the first groove, so that the moving structures in the first groove are lubricated, the friction force between the moving structures and the first groove is reduced, the braking effect is further improved, and the service life of the braking device is prolonged.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A brake apparatus, comprising: the lock comprises a base provided with a through hole, a locking ring arranged on the wall of the through hole and a linear driving device;

the to-be-braked member penetrates through the through hole, the locking ring is provided with a notch, the locking ring is used for being sleeved on the to-be-braked member, and the linear driving device is used for pushing one end of the notch to be close to the other end so as to fasten the to-be-braked member;

a first bulge and a second bulge are respectively arranged at two ends of the notch of the lock ring, and the first bulge and the second bulge protrude outwards;

a first groove extending towards the base is further formed in the hole wall of the through hole, and the first protrusion and the second protrusion are located in the first groove;

the device also comprises a wedge; the inclined wedge is positioned in the first groove, and the inclined plane of the inclined wedge is arranged on one side, far away from the first protrusion, of the second protrusion; the linear driving device comprises a cylinder body, a piston and a piston rod, wherein the piston and the piston rod are arranged in the cylinder body, and the piston rod is connected to one side, far away from the first protrusion, of the wedge;

the movable block is provided with a second groove which is a V-shaped groove, and two inner groove walls of the V-shaped groove are correspondingly abutted with the first protrusion and the second protrusion respectively; and the side wall of the movable block is provided with another inclined plane matched with the inclined plane of the wedge.

2. The brake apparatus of claim 1, wherein said piston is connected to one end of said piston rod; the cylinder body and the base are fixedly arranged, and the other end of the piston rod extends out of the cylinder body to push the end of the gap.

3. A braking apparatus in accordance with claim 2, characterised in that the piston is connected to the cylinder by a resilient member for providing a force to the piston towards the locking collar to cause the end of the piston rod to push the end of the gap.

4. The braking device as claimed in claim 2, wherein a limiting protrusion is further disposed on the wall of the locking ring, the base is provided with a limiting groove corresponding to the limiting protrusion, and the limiting protrusion is received in the limiting groove for limiting the locking ring from rotating relative to the inner wall of the through hole.

5. A brake apparatus according to claim 1, wherein a reservoir is provided in the base, the reservoir communicating with the first recess.