CN211969408U - Electromechanical brake cylinder and brake system - Google Patents
Electromechanical brake cylinder and brake system Download PDFInfo
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- CN211969408U CN211969408U CN202020452666.1U CN202020452666U CN211969408U CN 211969408 U CN211969408 U CN 211969408U CN 202020452666 U CN202020452666 U CN 202020452666U CN 211969408 U CN211969408 U CN 211969408U
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- electromechanical brake
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Abstract
The utility model provides an electromechanical brake jar, cylinder body subassembly, the inside chamber that holds that is formed with of cylinder body subassembly holds the intracavity and is provided with: the first connecting part is arranged on the side wall of the accommodating cavity; the second connecting part is arranged on the side wall of the accommodating cavity different from the first connecting part; the third connecting part is arranged opposite to the second connecting part; the motor is connected in the accommodating cavity; the transmission assembly is positioned in the accommodating cavity and is relatively and rotatably connected with the first connecting part; the connecting piece, motor and transmission assembly are connected to the connecting piece, and connecting piece one end and second connecting portion are relative swivelling joint, and the connecting piece other end and third connecting portion are relative swivelling joint. The utility model provides an electromechanical brake jar has improved the stationarity that drive assembly moved, further improves electromechanical brake jar's brake operation or alleviates the stability of operation to guarantee rail train operation's security. The utility model also provides a braking system.
Description
Technical Field
The utility model belongs to rail train stopper field especially relates to an electromechanical brake jar and rail train.
Background
The train has a large restriction on the volume of the braking device due to the fact that the train bottom installation space is tight at present, particularly for low-floor rail trains. Electromechanical brake cylinder devices with less installation space requirements are becoming a trend.
At present, the existing electromechanical brake cylinder comprises a cylinder body assembly, a motor, a transmission screw rod and a transmission nut which are in transmission fit with each other. The motor is connected in the cylinder body subassembly, and drive screw is connected with cylinder body subassembly relative movement, and drive nut rotates with the cylinder body subassembly relative and is connected, or drive screw rotates with the cylinder body subassembly relative and is connected, and drive nut moves with the cylinder body subassembly relative movement and is connected. The motor is directly connected with the transmission component. The motor is electrified to rotate, and the transmission assembly is driven to brake or relieve.
However, in the existing electromechanical braking device, because the motor is directly connected with the transmission screw rod or the transmission nut, when the motor is not stable in operation, the unstable motion is directly transmitted to the transmission screw rod or the transmission nut, so that the braking operation of the electromechanical brake cylinder is reduced or the stability of the operation is relieved, and the running safety of the rail train is further influenced.
SUMMERY OF THE UTILITY MODEL
To current electromechanical brake device braking operation or alleviate the technical problem that operating stability is lower and reduce rail train operation security, the utility model provides an electromechanical brake jar is provided with the connecting piece that plays buffering stabilizing effect, and the motor passes through the connecting piece and transmits the motion to transmission assembly. The stability of transmission assembly motion has been improved, further improved the brake operation of electromechanical brake jar or alleviated the stability of operation to the security of track train operation is guaranteed. The utility model also provides an use this electromechanical brake jar's braking system.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an electromechanical brake cylinder comprising:
the cylinder body subassembly, the inside chamber that holds that is formed with of cylinder body subassembly, it is provided with to hold the intracavity:
the first connecting part is arranged on the side wall of the accommodating cavity;
the second connecting part is arranged on the side wall of the accommodating cavity different from the first connecting part;
a third connecting portion disposed opposite to the second connecting portion;
the motor is connected in the accommodating cavity;
the transmission assembly is positioned in the accommodating cavity and is relatively and rotatably connected with the first connecting part;
the connecting piece, the connecting piece is connected the motor with the transmission assembly, connecting piece one end with second connecting portion relative swivelling joint, the connecting piece other end with third connecting portion relative swivelling joint.
Further, the cylinder body subassembly is provided with the passageway, the transmission assembly includes:
the transmission nut penetrates through the channel and is in relative movable connection with the cylinder body assembly;
the transmission lead screw is located in the containing cavity, the transmission lead screw is in transmission connection with the transmission nut, and the transmission lead screw is in relative rotation connection with the first connecting portion.
Further, the transmission nut is provided with a limiting portion, and the limiting portion is located on the outer side of the accommodating cavity.
Further, the cylinder body assembly is provided with a guide portion, the guide portion is located on the channel, the transmission nut is provided with a guide matching portion, and the guide portion is connected with the guide matching portion.
Further, the transmission assembly is further provided with a nut end cover, the nut end cover is connected to one side of the transmission nut, and the nut end cover covers the transmission screw rod.
Further, the cylinder block assembly includes:
a cylinder body;
the rear end cover is connected to one end of the cylinder body, and the first connecting part and the second connecting part are arranged on the rear end cover;
the front end cover is connected to the other end of the cylinder body, and the front end cover is provided with the third connecting portion.
Further, the cylinder body and the rear end cover are integrally formed.
Further, still include the encoder subassembly, the encoder subassembly is connected in between the cylinder body subassembly with the connecting piece.
The utility model also provides a braking system, contain above-mentioned arbitrary electromechanical brake jar.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the utility model provides an electromechanical brake jar, the intracavity that holds of cylinder body subassembly is provided with first connecting portion, second connecting portion and third connecting portion, and first connecting portion rotate relatively with the transmission assembly and are connected. The motor is connected in holding the intracavity, and the motor is connected with drive assembly through the connecting piece, and the connecting piece is rotated relatively with the second connecting portion and the third connecting portion that set up relatively respectively. The utility model provides an electromechanical brake jar when the motor operation is not steady, because the connecting piece both ends are rotated and are connected, has corresponding installation clearance, can play the stable effect of buffering to the motion of motor, and then improves the stationarity of drive assembly motion, further improves electromechanical brake jar's braking operation or alleviates the stability of operation to guarantee rail train operation's security.
Drawings
Fig. 1 is a schematic cross-sectional structural diagram of an electromechanical brake cylinder provided in this embodiment.
The reference numerals are explained in detail:
1. a cylinder block assembly; 11. a cylinder body; 12. a rear end cap; 121. a first connection portion; 122. a second connecting portion; 13. a front end cover; 131. a third connecting portion; 132. a guide portion;
2. a motor; 21. a stator; 22. a rotor;
3. a connecting member; 31. a first bearing; 32. a second bearing;
4. a transmission assembly; 41. a drive screw; 42. a drive nut; 421. a limiting part; 422. a guide fitting portion; 43. a third bearing; 44. a fourth bearing; 45. a nut end cap;
5. an encoder assembly; 51. encoding a static disc; 52. code driving disk.
Detailed Description
The technical solution in the embodiments of the present invention will be described in detail and completely with reference to the accompanying drawings. It is obvious that the described embodiments are only some embodiments, not all embodiments, of the general solution of the present invention. All other embodiments, which can be derived by a person skilled in the art based on the general idea of the invention, fall within the scope of protection of the invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.
The terms "first", "second" and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", "third" may explicitly or implicitly include one or more of the features.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
It should be particularly noted that, in order to facilitate understanding of the technical solution of the present invention, referring to fig. 1, the transmission relationship of the transmission assembly in the embodiment is observed from right to left in the view angle of the rotation direction, and the external thread of the transmission screw is taken as a right-hand thread as an example for description. If the rotation direction of the transmission screw rod is changed, the rotation direction and the movement relation of the parts and the components which are matched with the transmission screw rod are correspondingly changed.
To current electromechanical brake device braking operation or alleviate the technical problem that operating stability is lower and reduce rail train operation security, the utility model provides an electromechanical brake jar is provided with the connecting piece that plays buffering stabilizing effect, and the motor passes through the connecting piece and transmits the motion to transmission assembly. The stability of transmission assembly motion has been improved, further improved the brake operation of electromechanical brake jar or alleviated the stability of operation to the security of track train operation is guaranteed. The technical solution of the electromechanical brake cylinder with parking function provided by the present invention is specifically described below with reference to specific embodiments.
The embodiment provides an electromechanical brake cylinder comprising
An electromechanical brake cylinder comprising:
the first connecting part 121, the first connecting part 121 is arranged on the side wall of the accommodating cavity;
the second connecting portion 122, the second connecting portion 122 is disposed on a sidewall of the accommodating cavity different from the first connecting portion 121;
a third connecting portion 131, the third connecting portion 131 being disposed opposite to the second connecting portion 122;
the motor 2 is connected in the accommodating cavity;
the transmission component 4 is positioned in the accommodating cavity, and the transmission component 4 is relatively and rotatably connected with the first connecting part 121;
connecting piece 3, connecting piece 3 connect motor 2 and transmission assembly 4, and connecting piece 3 one end is connected with second connecting portion 122 relative rotation, and the connecting piece 3 other end is connected with third connecting portion 131 relative rotation.
In the electromechanical brake cylinder provided by the embodiment, the accommodating cavity of the cylinder body assembly 1 is provided with a first connecting part 121, a second connecting part 122 and a third connecting part 131, and the first connecting part 121 is used for being connected with the transmission assembly 4 in a relative rotation mode. The motor 2 is connected in holding the intracavity, and the motor 2 is connected with transmission assembly 4 through connecting piece 3, and connecting piece 3 rotates relatively with the second connecting portion 122 and the third connecting portion 131 that set up relatively respectively and is connected. The electromechanical brake jar that this embodiment provided, when motor 2 operates unstably, because 3 both ends of connecting piece rotate to be connected, there is corresponding installation clearance, can play the stable effect of buffering to motor 2's motion, and then improve the stationarity of transmission assembly 4 motion, further improve electromechanical brake jar's brake operation or alleviate the stability of operation to guarantee the security of rail train operation.
Specifically, referring to fig. 1, the present embodiment provides an electromechanical brake cylinder including a cylinder block assembly 1, a motor 2, a connecting member 3, a transmission assembly 4, and an encoder assembly 5. Motor 2 is connected in cylinder body subassembly 1, and motor 2 is connected with drive assembly 4 through connecting piece 3, and drive assembly 4 rotates with cylinder body subassembly 1 to be connected, and encoder subassembly 5 is connected between cylinder body subassembly 1 and connecting piece 3.
More specifically, the cylinder block assembly 1 is used for protecting and supporting the electromechanical brake cylinder provided by the embodiment. In order to facilitate the installation and adjustment, the cylinder body component 1 is arranged in a split way. The cylinder block assembly 1 includes a cylinder block body 11, a rear end cap 12, and a front end cap 13. The cylinder body 11, the rear end cover 12 and the front end cover 13 are connected, and an accommodating cavity is formed inside. The rear end cover 12 is provided with a first connecting portion 121, and the first connecting portion 121 is used for being connected with the transmission assembly 4 in a relatively rotating mode. The rear end cover 12 is further provided with a second connecting portion 122, and the second connecting portion 122 is disposed on a side wall of the accommodating cavity different from the first connecting portion 121. The second connecting portion 122 is connected to the connecting member 3 for relative rotation via the first bearing 31. For convenience of processing and adjustment, the cylinder body 11 and the rear end cover 12 are integrally formed. The front end cover 13 is connected with the cylinder body 11, a channel is arranged on the front end cover 13, the transmission assembly 4 penetrates through the channel, and the transmission assembly 4 is connected with the channel in a relatively movable mode. The front end cover 13 is provided with a third connecting portion 131, and the third connecting portion 131 is disposed opposite to the second connecting portion 122. The connecting member 3 is relatively rotatably connected to the third connecting portion 131 via the second bearing 32.
The motor 2 is used for providing braking and relieving power. The motor 2 comprises a stator 21 and a rotor 22, when the motor is powered on, the rotor 22 rotates or reversely rotates relative to the stator 21, the stator 21 is installed in the cylinder body 11, the rotor 22 is connected with the connecting piece 3, and the rotor 22 drives the transmission assembly 4 to rotate through the connecting piece 3 when rotating.
When motor 2 operates unstably, because the connection is rotated at 3 both ends of connecting piece, there is corresponding installation clearance in first bearing 31 and second bearing 32, can play the stable effect of buffering to motor 2's motion, and then improve the stationarity of transmission assembly 4 motion, further improve the braking operation of electromechanical brake jar or alleviate the stability of operation to guarantee the security of rail train operation.
The transmission assembly 4 is used to transmit the rotation of the rotor 22 of the motor 2, and apply and release a braking force. Specifically, the transmission assembly 4 includes a transmission screw 41 and a transmission nut 42, and the transmission screw 41 is relatively rotatably connected to the first connection portion 121 through a third bearing 43. In order to improve the stability of the transmission assembly 4 during rotation, the transmission assembly 4 further includes a fourth bearing 44, and the transmission assembly 4 is connected with the first connection portion 121 through the fourth bearing 44 in a relative rotation manner. The connecting piece 3 is sleeved between the rotor 22 and the transmission screw 41, and the rotor 22 drives the transmission screw 41 to rotate through the connecting piece 3. The driving nut 42 is in driving connection with the driving screw 41, and the driving screw 41 is right-handed as an exemplary illustration. The drive nut 42 passes through the passage of the front end cover 13 and is connected with the front end cover 13 in a relatively movable manner. In order to improve the moving stability of the transmission nut 42, the guide portion 132 is arranged on the channel, the transmission nut 42 is provided with the guide matching portion 422, and the guide matching portion 422 is matched with the guide portion 132 to play a role in guiding, so that the stable moving connection of the front end cover 13 and the transmission nut 42 is realized. More specifically, the guiding portion 132 and the guiding engagement portion 422 may be a guiding pin structure, a flat key structure or a spline structure, or other structures capable of guiding engagement.
The transmission nut 42 is further provided with a limiting portion 421, the limiting portion 421 is an annular protruding structure, and the limiting portion 421 is located outside the channel of the front end cover 13 and used for limiting the position of the transmission nut 42. In order to further protect the transmission screw 41 and prevent the transmission nut 42 from being worn, the end of the transmission screw 41 is further provided with a nut end cover 45, the transmission screw 41 is located in the transmission nut 42, and the nut end cover 45 covers the end of the transmission nut 42 to protect the transmission screw 41 and the transmission nut 42.
The electromechanical brake cylinder with parking function provided by the embodiment is further provided with an encoder assembly 5, and the encoder assembly 5 is connected between the transmission lead screw 41 and the cylinder body assembly 1. Specifically, the encoder assembly 5 comprises a static encoding disk 51 and a movable encoding disk 52, the static encoding disk 51 is connected to the inner side of the front end cover 13, and the movable encoding disk 52 is connected with the transmission screw 41 through the connecting piece 3. When the transmission screw 41 rotates, the coding movable disc 52 is driven to rotate relatively relative to the coding static disc 51 through the connecting piece 3, so that coding is performed, the rotation of the transmission screw 41 is recorded, and the electromechanical brake cylinder provided by the embodiment is further conveniently and subsequently intelligently controlled.
The embodiment also provides a braking system which comprises the electromechanical brake cylinder provided by the embodiment.
In order to facilitate understanding of the technical solution of the present invention, the following further describes the operation process of the electromechanical brake cylinder provided in this embodiment.
The working condition I is as follows: from a braking state to a release state
The motor 2 is electrified, the rotor 22 rotates clockwise, the rotor 22 drives the connecting piece 3 to rotate clockwise, the connecting piece 3 drives the transmission screw rod 41 to rotate clockwise, and the transmission nut 42 moves towards the direction far away from the braking clamp under the action of the guide part 132 and the guide matching part 422, so that the effect of relieving is achieved.
Working conditions are as follows: from a released state to a braked state
The motor 2 is powered on, the rotor 22 rotates anticlockwise, the rotor 22 drives the connecting piece 3 to rotate anticlockwise, the connecting piece 3 drives the transmission screw rod 41 to rotate anticlockwise, and the transmission nut 42 moves towards the direction of the braking clamp under the action of the guide part 132 and the guide matching part 422, so that braking is achieved.
Claims (9)
1. An electromechanical brake cylinder, comprising:
the cylinder body subassembly, the inside chamber that holds that is formed with of cylinder body subassembly, it is provided with to hold the intracavity:
the first connecting part is arranged on the side wall of the accommodating cavity;
the second connecting part is arranged on the side wall of the accommodating cavity different from the first connecting part;
a third connecting portion disposed opposite to the second connecting portion;
the motor is connected in the accommodating cavity;
the transmission assembly is positioned in the accommodating cavity and is relatively and rotatably connected with the first connecting part;
the connecting piece, the connecting piece is connected the motor with the transmission assembly, connecting piece one end with second connecting portion relative swivelling joint, the connecting piece other end with third connecting portion relative swivelling joint.
2. Electromechanical brake cylinder according to claim 1, characterized in that the cylinder block assembly is provided with a channel, the transmission assembly comprising:
the transmission nut penetrates through the channel and is in relative movable connection with the cylinder body assembly;
the transmission lead screw is located in the containing cavity, the transmission lead screw is in transmission connection with the transmission nut, and the transmission lead screw is in relative rotation connection with the first connecting portion.
3. Electromechanical brake cylinder according to claim 2, characterized in that the transmission nut is provided with a stop portion, which is located outside the receiving cavity.
4. Electromechanical brake cylinder according to claim 2, characterized in that the cylinder block assembly is provided with a guide which is located on the channel, and the transmission nut is provided with a guide fitting, which guide is connected with the guide fitting.
5. Electromechanical brake cylinder according to claim 2, characterized in that the transmission assembly is further provided with a nut end cap, which is connected to one side of the transmission nut, the nut end cap covering the transmission screw.
6. Electromechanical brake cylinder according to any of the claims 1 to 5, characterized in that the cylinder block assembly comprises:
a cylinder body;
the rear end cover is connected to one end of the cylinder body, and the first connecting part and the second connecting part are arranged on the rear end cover;
the front end cover is connected to the other end of the cylinder body, and the front end cover is provided with the third connecting portion.
7. Electromechanical brake cylinder according to claim 6, characterized in that the cylinder body is integrally formed with the rear end cover.
8. Electromechanical brake cylinder according to any of claims 1 to 5, characterized by an encoder assembly connected between the cylinder assembly and the connection piece.
9. A brake system comprising an electromechanical brake cylinder according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020452666.1U CN211969408U (en) | 2020-03-31 | 2020-03-31 | Electromechanical brake cylinder and brake system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020452666.1U CN211969408U (en) | 2020-03-31 | 2020-03-31 | Electromechanical brake cylinder and brake system |
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| Publication Number | Publication Date |
|---|---|
| CN211969408U true CN211969408U (en) | 2020-11-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020452666.1U Active CN211969408U (en) | 2020-03-31 | 2020-03-31 | Electromechanical brake cylinder and brake system |
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| CN (1) | CN211969408U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113819168A (en) * | 2021-10-09 | 2021-12-21 | 中车青岛四方车辆研究所有限公司 | Electromechanical parking brake cylinder and brake system |
-
2020
- 2020-03-31 CN CN202020452666.1U patent/CN211969408U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113819168A (en) * | 2021-10-09 | 2021-12-21 | 中车青岛四方车辆研究所有限公司 | Electromechanical parking brake cylinder and brake system |
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