CN218294029U - Automatic brake device of cycloid hydraulic motor - Google Patents
Automatic brake device of cycloid hydraulic motor Download PDFInfo
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- CN218294029U CN218294029U CN202221664595.7U CN202221664595U CN218294029U CN 218294029 U CN218294029 U CN 218294029U CN 202221664595 U CN202221664595 U CN 202221664595U CN 218294029 U CN218294029 U CN 218294029U
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Abstract
The utility model relates to a hydraulic pressure cycloid motor technical field, concretely relates to cycloid hydraulic motor automatic brake device. The shell of the brake device is hermetically connected with the rotor of the cycloid hydraulic motor, the shell of the brake device is arranged behind the rotor of the cycloid hydraulic motor, and the axial lead of the shell of the brake device is superposed with the axial lead of the main body of the cycloid hydraulic motor; the rear end cover of the brake device is hermetically connected with the shell of the brake device, the rear end cover of the brake device is arranged behind the shell of the brake device, and the axis of the rear end cover of the brake device is superposed with the axis of the shell of the brake device; the brake piston is arranged in a cavity formed by the rear end cover of the brake device and the shell of the brake device, and the axial lead of the brake piston is superposed with the axial lead of the shell of the brake device; the utility model discloses simple structure, simple to operate, follow-up maintenance is convenient, can realize automatic braking.
Description
Technical Field
The utility model relates to a hydraulic pressure cycloid motor technical field, concretely relates to cycloid hydraulic motor automatic brake device.
Background
The cycloid hydraulic motor has the advantages of small volume, high efficiency, wide rotating speed range and the like, the requirement of the plastic machinery industry on the driving force of the cycloid hydraulic motor is not high, the load is not large when the cycloid hydraulic motor is used, and therefore the requirement on the braking torque of a braking device of the cycloid hydraulic motor is not high, but in order to meet the requirement on the braking torque of other industries, a spline shaft with an eccentric shaft head at one end is generally adopted in the braking device of the cycloid hydraulic motor in the prior art, one end without the eccentric shaft head is connected with an inner spline of a rotor, and one end with the eccentric shaft head is matched with the braking device; and the brake device has the advantages of complex structure, high processing difficulty, difficult installation and high subsequent maintenance cost.
Disclosure of Invention
The utility model discloses it is not enough to the above-mentioned that prior art exists, provide a simple structure, workable, simple to operate, follow-up maintenance is convenient, can realize automatic braking's cycloid hydraulic motor automatic brake device.
In order to achieve the above purpose, the utility model provides a following technical scheme:
an automatic braking device of a cycloid hydraulic motor comprises a cycloid hydraulic motor stator and a cycloid hydraulic motor rotor; the rotor of the cycloid hydraulic motor is arranged in a cavity of the stator of the cycloid hydraulic motor, and the rear end face of the rotor of the cycloid hydraulic motor is superposed with the rear end face of the stator of the cycloid hydraulic motor; the method is characterized in that: the brake device comprises a brake device shell, a brake piston and a brake device rear end cover; the brake device shell is hermetically connected with the cycloid hydraulic motor rotor, the brake device shell is arranged behind the cycloid hydraulic motor rotor, and the axial lead of the brake device shell is superposed with the axial lead of the cycloid hydraulic motor main body; the rear end cover of the brake device is connected with the shell of the brake device in a sealing way, the rear end cover of the brake device is arranged behind the shell of the brake device, and the axial lead of the rear end cover of the brake device is superposed with the axial lead of the shell of the brake device; the brake piston is arranged in a cavity formed by the rear end cover of the brake device and the shell of the brake device, and the axial lead of the brake piston is superposed with the axial lead of the shell of the brake device; the front end face of the brake piston is in contact with the rear end face of the cycloid hydraulic motor rotor by pushing the brake piston onto the cycloid hydraulic motor rotor, so that friction braking is performed on the hydraulic motor rotor.
The utility model also comprises a brake spring which is arranged in a cavity formed by the brake device rear end cover and the brake device shell, and the brake spring is arranged behind the brake piston; the brake piston is pushed to the rotor of the cycloid hydraulic motor through the brake spring, so that the cycloid hydraulic motor can keep a braking state when not in use.
The shell of the brake device is also provided with a brake oil way, and the stator of the cycloid hydraulic motor is also provided with two brake oil inlet channels; the shaft axis of the brake oil path is parallel to the shaft axis of the brake device shell, the brake oil path further comprises a first oil inlet and a second oil inlet, and the first oil inlet is arranged in front of the second oil inlet; the rear ends of the two brake oil inlet channels are respectively communicated with the first oil inlet and the second oil inlet in a sealing manner, and the front ends of the two brake oil inlet channels are respectively communicated with the oil inlet and the oil outlet of the cycloid hydraulic motor in a sealing manner; when the cycloid hydraulic motor rotates forwards, hydraulic oil flows in through an oil inlet of the cycloid hydraulic motor, flows into a first oil inlet through a brake oil inlet channel communicated with the oil inlet of the cycloid hydraulic motor, then flows into a cavity formed by a brake piston and a brake device shell, pushes the brake piston to move backwards and relieves braking; similarly, when the cycloid hydraulic motor rotates reversely, hydraulic oil flows in through an oil outlet of the cycloid hydraulic motor, flows into a second oil inlet through a brake oil inlet channel communicated with the oil outlet of the cycloid hydraulic motor, then flows into a cavity formed by the brake piston and the brake device shell to push the brake piston to move backwards to relieve braking, when no hydraulic oil flows into the oil outlet of the cycloid hydraulic motor, the pressure in the cavity formed by the brake piston and the brake device shell is reduced, the brake spring pushes the brake piston to move forwards to brake the cycloid hydraulic motor.
Through the arrangement of the brake oil way, hydraulic oil can flow into a cavity formed by the rear end cover of the brake device and the shell of the brake device to push the brake piston to move backwards, so that the brake is released.
The brake device shell also comprises a steel ball and a brake oil pipe; the first oil inlet, the first steel ball, the brake oil pipe and the oil outlet are arranged from front to back along the front-back direction respectively. When the cycloid hydraulic motor rotates forwards, hydraulic oil flows into the brake oil way through the first oil inlet and pushes the steel ball to block the brake oil pipe, so that the hydraulic oil is prevented from flowing out through the brake oil pipe, and the cycloid hydraulic motor can be normally used; when the cycloid hydraulic motor rotates reversely, hydraulic oil flows into the brake oil way through the second oil inlet, the steel ball is pushed to plug the first oil inlet, and therefore it is guaranteed that the hydraulic oil cannot flow out through the first oil inlet, and the cycloid hydraulic motor can be guaranteed to be normally used when rotating positively and negatively through the arrangement of the steel ball.
The brake piston further comprises two sealing rings, the two sealing rings are respectively arranged on two contact surfaces of the brake piston and the brake device shell, and the axial lead of each sealing ring is superposed with the axial lead of the brake device shell; through the setting of sealing ring, can prevent that hydraulic oil from revealing in the contact surface department of brake piston and brake equipment casing.
The utility model also comprises a rear end cover bolt; the rear end cover bolts are uniformly arranged around the axial lead of the brake device shell, the axial lead of the rear end cover bolts is parallel to the axial lead of the brake device shell, and the rear end cover bolts are matched with the brake device shell through thread pairs. Fixing the rear end cover of the brake device on the shell of the brake device through a rear end cover bolt; the bolt connection structure is simple, and the processing cost can be reduced.
The utility model discloses still include wear-resisting ring, wear-resisting ring fixed mounting is in the cavity that brake equipment rear end cap and brake equipment casing formed, and wear-resisting ring's axial lead and brake equipment casing axial lead coincide, and wear-resisting ring is at the back of brake piston. Through the setting of wear ring, can effectually prevent that brake piston from assaulting brake equipment rear end cap to brake equipment rear end cap's life has been prolonged.
The utility model has the advantages that: the automatic brake device is simple in structure, convenient to install and convenient to maintain, and can achieve automatic braking.
Drawings
FIG. 1 is a schematic three-dimensional structure of a gerotor hydraulic motor;
fig. 2 is a schematic three-dimensional structure diagram of the embodiment of the present invention and the internal structure of the hydraulic motor main body;
FIG. 3 is a schematic view of a first perspective three-dimensional structure of the brake housing;
fig. 4 is a second perspective three-dimensional structural diagram of the brake housing.
In the figure:
1-automatic braking device of cycloid hydraulic motor; 11-a brake housing; 12-a brake piston; 13-brake device rear end cap; 131-rear end cover bolts of the brake device; 14-a brake spring; 15-brake oil way; 151-a first oil inlet; 152-steel balls; 153-a second oil inlet; 154-brake oil pipe; 16-a sealing ring; 17-wear resistant rings;
2-a gerotor hydraulic motor body; 21-cycloid hydraulic motor stator; 22-cycloid hydraulic motor rotor; 23-brake oil inlet channel.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments and accompanying drawings, and it is to be understood that the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
Embodiment 1, an automatic brake apparatus of a cycloid hydraulic motor, as shown in fig. 1 to 4, includes a cycloid hydraulic motor stator 21 and a cycloid hydraulic motor rotor 22; the cycloid hydraulic motor rotor 22 is arranged in a cavity of the cycloid hydraulic motor stator 21, and the rear end surface of the cycloid hydraulic motor rotor 22 is superposed with the rear end surface of the cycloid hydraulic motor stator 21; the method is characterized in that: the brake device further comprises a brake device shell 11, a brake piston 12 and a brake device rear end cover 13; the brake device shell 11 is hermetically connected with the cycloid hydraulic motor rotor 22, the brake device shell 11 is arranged behind the cycloid hydraulic motor rotor 22, and the axial lead of the brake device shell 11 is superposed with the axial lead of the cycloid hydraulic motor main body 2; the rear end cover 13 of the brake device is connected with the brake device shell 11 in a sealing way, the rear end cover 13 of the brake device is arranged behind the brake device shell 11, and the axial lead of the rear end cover 13 of the brake device is superposed with the axial lead of the brake device shell 11; the brake piston 12 is arranged in a cavity formed by the brake device rear end cover 13 and the brake device shell 11, and the axis of the brake piston 12 is superposed with the axis of the brake device shell 11; by pushing the brake piston 12 against the cycloid hydraulic motor rotor 22, the front end surface of the brake piston 12 and the rear end surface of the cycloid hydraulic motor rotor 22 are brought into contact, thereby performing friction braking on the hydraulic motor rotor 22.
The utility model also comprises a brake spring 14, the brake spring 14 is arranged in a cavity formed by a brake device rear end cover 13 and a brake device shell 11, and the brake spring 14 is arranged behind the brake piston 12; the brake piston 12 is pushed by the brake spring 14 against the gerotor hydraulic motor rotor 22 so that the gerotor hydraulic motor can maintain a braking condition when not in use.
The brake device shell 11 is also provided with a brake oil way 15, and the cycloid hydraulic motor stator 21 is also provided with two brake oil inlet channels 23; the axial lead of the brake oil path 15 is parallel to the axial lead of the brake device shell 11, the brake oil path 15 further comprises a first oil inlet 151 and a second oil inlet 153, and the first oil inlet 151 is arranged in front of the second oil inlet 153; the rear ends of the two brake oil inlet channels 23 are respectively in sealed communication with the first oil inlet 151 and the second oil inlet 153, and the front ends of the two brake oil inlet channels 23 are respectively in sealed communication with the oil inlet and the oil outlet of the cycloid hydraulic motor; when the cycloid hydraulic motor rotates forwards, hydraulic oil flows in through an oil inlet of the cycloid hydraulic motor, flows into a first oil inlet 151 through a brake oil inlet channel 23 communicated with the oil inlet of the cycloid hydraulic motor, then flows into a cavity formed by the brake piston 12 and the brake device shell 11, pushes the brake piston 12 to move backwards, and relieves braking; similarly, when the cycloid hydraulic motor rotates reversely, hydraulic oil flows in through an oil outlet of the cycloid hydraulic motor, flows into the second oil inlet 153 through the brake oil inlet channel 23 communicated with the oil outlet of the cycloid hydraulic motor, then flows into a cavity formed by the brake piston 12 and the brake device shell 11, pushes the brake piston 12 to move backwards, and relieves braking.
By arranging the brake oil passage 15, hydraulic oil can flow into a cavity formed by the brake device rear end cover 13 and the brake device shell 11, and the brake piston 12 is pushed to move backwards, so that braking is released.
The brake device shell 11 further comprises a steel ball 152 and a brake oil pipe 154; the steel ball 152 and the brake oil pipe 154 are respectively installed in the brake oil path 15, the axial lines of the steel ball 152 and the brake oil pipe 154 are respectively overlapped with the axial line of the brake oil path 15, and the first oil inlet 151, the steel ball 152, the brake oil pipe 154 and the oil outlet 153 are respectively arranged from front to back along the front-back direction. When the cycloid hydraulic motor rotates forwards, hydraulic oil flows into the brake oil path 15 through the first oil inlet 151, and pushes the steel ball 152 to block the brake oil pipe 154, so that the hydraulic oil is prevented from flowing out through the brake oil pipe 154, and the cycloid hydraulic motor can be normally used; when the cycloid hydraulic motor rotates reversely, hydraulic oil flows into the brake oil path 15 through the second oil inlet 153, the steel ball 152 is pushed to block the first oil inlet 151, and therefore it is guaranteed that the hydraulic oil cannot flow out through the first oil inlet 151, and the cycloid hydraulic motor can be guaranteed to be normally used in forward and reverse rotation through the arrangement of the steel ball 152.
The brake piston 12 further comprises two sealing rings 16, the two sealing rings 16 are respectively arranged on two contact surfaces of the brake piston 12 and the brake device shell 11, and the axial lead of the sealing rings 16 is superposed with the axial lead of the brake device shell 11; by providing the seal ring 16, hydraulic oil can be prevented from leaking at the contact surface of the brake piston 12 and the brake device housing 11.
The utility model also comprises a rear end cover bolt 131; the rear end cover bolts 131 are uniformly arranged around the axis of the brake device shell 11, the axis of the rear end cover bolts 131 is parallel to the axis of the brake device shell 11, and the rear end cover bolts 131 are matched with the brake device shell 11 through thread pairs. The brake device rear end cover 13 is fixed on the brake device shell 11 through a rear end cover bolt 131; the bolt connection structure is simple, and the processing cost can be reduced.
The utility model discloses still include wear-resisting ring 17, wear-resisting ring 17 fixed mounting is in the cavity that brake equipment rear end cap 13 and brake equipment casing 11 formed, and wear-resisting ring 17's axial lead and the coincidence of 11 axial leads of brake equipment casing, wear-resisting ring 17 are at the back of brake piston 12. Through the arrangement of the wear-resisting ring 17, the brake piston 12 can be effectively prevented from impacting the brake device rear end cover 13, so that the service life of the brake device rear end cover 13 is prolonged.
Obviously, various modifications and changes may be made by those skilled in the art without departing from the scope of the present invention. Thus, if such modifications and variations of the present invention fall within the scope of the present invention and its equivalent technology, the present invention is also intended to include such modifications and variations.
Claims (7)
1. An automatic brake device of a cycloid hydraulic motor comprises a stator of the cycloid hydraulic motor and a rotor of the cycloid hydraulic motor; the cycloid hydraulic motor rotor is arranged in a cavity of the cycloid hydraulic motor stator, and the rear end face of the cycloid hydraulic motor rotor is superposed with the rear end face of the cycloid hydraulic motor stator; the method is characterized in that: the brake device comprises a brake device shell, a brake piston and a brake device rear end cover; the brake device shell is hermetically connected with the cycloid hydraulic motor rotor, the brake device shell is arranged behind the cycloid hydraulic motor rotor, and the axial lead of the brake device shell is superposed with the axial lead of the cycloid hydraulic motor main body; the rear end cover of the brake device is connected with the shell of the brake device in a sealing way, the rear end cover of the brake device is arranged behind the shell of the brake device, and the axial lead of the rear end cover of the brake device is superposed with the axial lead of the shell of the brake device; the brake piston is arranged in a cavity formed by the brake device rear end cover and the brake device shell, and the axis of the brake piston is coincided with the axis of the brake device shell.
2. The gerotor hydraulic motor automatic brake device of claim 1, wherein: the brake device is characterized by further comprising a brake spring, wherein the brake spring is arranged in a cavity formed by the brake device rear end cover and the brake device shell, and the brake spring is arranged behind the brake piston.
3. The gerotor hydraulic motor automatic brake device of claim 1, wherein: the shell of the brake device is also provided with a brake oil way, and the stator of the cycloid hydraulic motor is also provided with two brake oil inlet channels; the axial lead of the brake oil path is parallel to the axial lead of the shell of the brake device, the brake oil path also comprises a first oil inlet and a second oil inlet, and the first oil inlet is arranged in front of the second oil inlet; the rear ends of the two brake oil inlet channels are respectively communicated with the first oil inlet and the second oil inlet in a sealing mode, and the front ends of the two brake oil inlet channels are respectively communicated with the oil inlet and the oil outlet of the cycloid hydraulic motor in a sealing mode.
4. The gerotor hydraulic motor automatic brake device of claim 3, wherein: the brake device shell also comprises a steel ball and a brake oil pipe; the first oil inlet, the first steel ball, the brake oil pipe and the oil outlet are arranged from front to back along the front-back direction respectively.
5. The gerotor hydraulic motor automatic brake device of claim 1, wherein: the brake piston still include two sealing rings, two sealing rings are installed respectively on two contact surfaces of brake piston and brake equipment casing, the axial lead of sealing ring and the axial lead coincidence of brake equipment casing.
6. The gerotor hydraulic motor automatic brake device of claim 1, wherein: the rear end cover bolt is also included; the rear end cover bolts are uniformly arranged around the axis of the brake device shell, the axis of the rear end cover bolts is parallel to the axis of the brake device shell, and the rear end cover bolts are matched with the brake device shell through thread pairs.
7. The gerotor hydraulic motor automatic brake device of claim 1, wherein: the brake device is characterized by further comprising a wear-resistant ring, wherein the wear-resistant ring is fixedly arranged in a cavity formed by the brake device rear end cover and the brake device shell, the axis of the wear-resistant ring is overlapped with the axis of the brake device shell, and the wear-resistant ring is arranged behind the brake piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221664595.7U CN218294029U (en) | 2022-06-29 | 2022-06-29 | Automatic brake device of cycloid hydraulic motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221664595.7U CN218294029U (en) | 2022-06-29 | 2022-06-29 | Automatic brake device of cycloid hydraulic motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218294029U true CN218294029U (en) | 2023-01-13 |
Family
ID=84789926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221664595.7U Active CN218294029U (en) | 2022-06-29 | 2022-06-29 | Automatic brake device of cycloid hydraulic motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218294029U (en) |
-
2022
- 2022-06-29 CN CN202221664595.7U patent/CN218294029U/en active Active
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