CN212360563U - Universal totally-enclosed wet hydraulic brake device - Google Patents
Universal totally-enclosed wet hydraulic brake device Download PDFInfo
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- CN212360563U CN212360563U CN202021238146.7U CN202021238146U CN212360563U CN 212360563 U CN212360563 U CN 212360563U CN 202021238146 U CN202021238146 U CN 202021238146U CN 212360563 U CN212360563 U CN 212360563U
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Abstract
A general totally-enclosed wet hydraulic brake device is suitable for a vehicle brake system. The brake spring sleeved in the spring hole of the brake piston presses the friction plate to perform mechanical braking, and the braking is released through hydraulic power. The utility model utilizes the spring to press the friction plate for braking, removes the braking principle by hydraulic power, adopts the totally-enclosed structure and the oil liquid to cool the friction plate technology, has convenient braking force adjustment, is easy to control and adjust the braking distance, greatly improves the braking reliability, and ensures the driving safety; the oil liquid cooling mode can avoid the friction plate from heating, and the service life of the friction plate is prolonged; the totally-enclosed structure is adopted, the risk of brake failure caused by muddy water pollution and friction heating of the brake pad can be prevented, the technical problem of the existing exposed dry-type wheel disc brake can be effectively solved, and the maintenance is avoided; the universal structure can be used for steering and non-steering and driving and non-driving axles. The brake system can be widely applied to engineering machinery and transport vehicles, in particular to a brake system of an underground transport vehicle for mining.
Description
Technical Field
The utility model relates to a vehicle braking safety technical field specifically is a totally closed wet-type hydraulic braking device of general type for engineering machine tool, haulage vehicle, especially mining underground haulage vehicle.
Background
The existing vehicle brake mode mainly adopts dry brake technology such as pneumatic wheel disc hub band-type brake, caliper butterfly and the like, and an operation control system generally adopts a pneumatic cylinder for control, air-break brake and air-release. However, when the brake pad is applied to heavy transport vehicles, long and large ramps and underground mine muddy water rough road environments, brake failure is easily caused due to friction heating and muddy water pollution, and safety accidents are caused.
Disclosure of Invention
For overcoming the braking inefficacy problem of the current dry-type rim plate braking technique that exposes, the utility model discloses an invention aim at provides a totally closed wet-type hydraulic braking device of general type for replace current vehicle brake arresting gear, in order to eliminate the braking inefficacy risk, improve mining haulage vehicle brake braking reliability, ensure driving safety.
In order to realize the purpose, the totally-enclosed wet hydraulic braking device of the utility model is fixedly connected with the end part of the axle through the braking cylinder seat and fixedly connected with the tire steel ring through the revolving body, and is used for braking and relieving the wheel; the totally-enclosed wet type brake device is mechanically braked by a brake spring sleeved in a spring hole of a brake piston and pressing a friction movable sheet and a friction fixed sheet, and the brake is released through hydraulic power; under the non-braking working condition, the hydraulic operation control system is in a connection state, supplies oil to the hydraulic oil cavity, overcomes the tension of the braking spring, forces the braking piston to move rightwards, loosens the friction movable plate and the friction fixed plate, and releases braking; under the braking working condition, a brake pedal is stepped to control the hydraulic operation control system to stop supplying pressure oil, oil in the hydraulic oil cavity flows back to the hydraulic oil tank, and the brake spring presses the brake piston to move leftwards to force the friction moving piece and the friction fixed piece of the friction moving piece to press tightly for braking.
The left end of the brake cylinder seat is fixedly connected with the brake cylinder body through a bolt, the right end of the brake cylinder seat is fixedly connected with the axle, the brake piston is sleeved in the brake cylinder body, and the brake spring is sleeved in a spring hole of the brake piston and is tightly pressed by the brake cylinder seat; the inner hole spline groove of the friction rotor is sleeved on the right-end spline shaft of the revolving body, the excircle spline groove of the friction stator is sleeved in the left-end spline hole of the brake cylinder body, the friction rotor and the friction stator are arranged at intervals and can freely slide in the axial direction, the right-end friction stator is pressed by the brake piston, the left-end friction stator is pressed by the brake cylinder cover, and the brake cylinder cover is fixedly connected with the brake cylinder body through a bolt; the floating shaft sleeve is sleeved in an inner hole of the brake cylinder seat and is fixedly connected with the brake cylinder seat through a bolt; a bearing is arranged between the floating shaft sleeve and the revolving body, an inner ring of the bearing is sleeved on the floating shaft sleeve, the inner ring of the bearing is axially fixed with a shaft shoulder of the floating shaft sleeve through a locking nut, an outer ring of the bearing is sleeved in an inner cylindrical hole of the revolving body, and the outer ring of the bearing is axially fixed with an inner hole step of the revolving body through a jacking sleeve; the half shaft is sleeved in an inner hole of the floating shaft sleeve, a left end flange of the half shaft is fixedly connected with the revolving body through a bolt, the outer ring of the bearing is tightly pressed through the jacking sleeve to realize axial fixation, and the right end of the half shaft is connected with an axle transmission shaft to output power and drive wheels to walk; the right end of the revolving body is sleeved in the brake cylinder body, and the left end flange plate of the revolving body is fixedly connected with the tire steel ring through bolts and rotates along with the wheel.
The outer cylindrical surface of the floating shaft sleeve is provided with a first sealing ring for sealing between the brake cylinder seat and the floating shaft sleeve; a sealing ring II used for sealing between the brake cylinder seat and the brake cylinder body is arranged on the outer cylindrical surface of the brake cylinder seat; a third sealing ring for sealing between the brake cylinder body and the brake piston and a fourth sealing ring for sealing between the brake cylinder body and the hydraulic oil cavity are arranged on the outer cylindrical surface of the brake piston; a fifth sealing ring for sealing between the brake cylinder body and the brake cylinder cover is arranged on the right end face of the brake cylinder cover, and a sixth sealing ring for sealing between the brake cylinder cover and the revolving body is arranged on the inner cylindrical surface of the brake cylinder cover; and a seventh sealing ring for sealing between the revolving body and the half shaft is arranged on the left end surface of the revolving body.
And a cavity between the left end surface of the outer cylinder of the brake piston and the right end surface of the inner cylinder of the brake cylinder body is a hydraulic oil cavity, two ends of the hydraulic oil cavity are sealed by a third sealing ring and a fourth sealing ring, and the hydraulic oil cavity is communicated with a hydraulic operation control system through an oil duct and an oil port joint of the brake cylinder body.
An oil cavity between the brake piston and the floating shaft sleeve and between the revolving body and the floating shaft sleeve is a cooling oil cavity, and cooling oil is injected into the cooling oil cavity to lubricate a bearing and cool a friction moving plate and a friction fixed plate; the cooling oil in the cooling oil cavity is sealed by a first sealing ring, a second sealing ring, a fifth sealing ring, a sixth sealing ring, a seventh sealing ring and an oil plug.
The totally-enclosed wet hydraulic brake device is of a universal structure and can be used for a non-driving steering axle or a steering drive axle and a non-steering drive axle; when the brake cylinder seat is used for a non-driving steering axle, a half shaft can be omitted, and the brake cylinder seat is directly connected with a steering knuckle; when the brake cylinder seat is used for steering a drive axle, the right end of the half shaft is connected with an axle transmission shaft universal joint, and the brake cylinder seat is connected with a steering joint; when the brake cylinder seat is used for a non-steering drive axle, a steering knuckle can be omitted, and the brake cylinder seat is connected with a flange plate on the end face of the axle housing.
Compared with the prior art, the utility model utilizes the spring to press the friction plate for braking, removes the braking principle by hydraulic power, adopts the totally-enclosed structure and the oil liquid to cool the friction plate technology, has convenient braking force adjustment, easily controls and adjusts the braking distance, greatly improves the braking reliability, and ensures the driving safety; the oil liquid cooling mode can avoid the friction plate from heating, and the service life of the friction plate is prolonged; the fully-closed structure is adopted to replace the existing dry braking forms such as an exposed pneumatic wheel disc, a hub brake, a caliper butterfly and the like, the muddy water pollution can be prevented, the braking failure risk caused by friction heating of a braking piece can be prevented, the technical problem of the existing exposed dry wheel disc braking can be effectively solved, and the exposed dry wheel disc braking is safe and reliable and is free from maintenance; the universal type structure design is adopted, and the universal type structure design is suitable for steering and non-steering and driving and non-driving axles. The brake system can be widely applied to engineering machinery and transport vehicles, in particular to a spring brake, hydraulic release and wet hydraulic brake system of an underground transport vehicle for mining.
Drawings
Fig. 1 is a schematic view of the present invention.
Fig. 2 is a front view of fig. 1.
Fig. 3 is a left side view of fig. 1.
Fig. 4 is a top view of fig. 1.
Fig. 5 is a schematic view of the connection and installation of the non-steering drive axle of the present invention.
Detailed Description
As shown in fig. 1, fig. 2, fig. 3, fig. 4, and fig. 5, the totally-enclosed wet braking device of the present invention mainly comprises a brake cylinder seat 1, a brake piston 2, a brake spring 3, a brake cylinder body 4, a friction rotor 5, a friction stator 6, a brake cylinder cover 7, a floating shaft sleeve 8, a bearing 9, a lock nut 10, a tightening sleeve 11, a revolving body 12, a half shaft 13, a connecting bolt 14, an oil port joint 31, etc. The totally-enclosed wet brake device is fixedly connected with the end part of an axle through a brake cylinder seat 1 and is fixedly connected with a tire steel ring through a revolving body 12 and used for braking and releasing wheels; the totally-enclosed wet type brake device is mechanically braked by a brake spring 3 sleeved in a spring hole of a brake piston 2 and pressing a friction moving plate 5 and a friction fixed plate 6, and the brake is released through hydraulic power; under the non-braking working condition, the hydraulic operation control system is in a connection state, supplies oil to the hydraulic oil cavity 32, overcomes the tension of the brake spring 3, forces the brake piston 2 to move rightwards, releases the friction movable plate 5 and the friction fixed plate 6 and releases braking; under the braking working condition, a brake pedal is stepped on to control the hydraulic operation control system to stop supplying pressure oil, oil in the hydraulic oil cavity 32 flows back to the hydraulic oil tank, the brake spring 3 presses the brake piston 2 to move leftwards, and the friction moving plate 5 and the friction fixed plate 6 are forced to be pressed tightly for braking.
The left end of the brake cylinder seat 1 is fixedly connected with a brake cylinder body 4 through a bolt, the right end of the brake cylinder seat is fixedly connected with an axle, a brake piston 2 is sleeved in the brake cylinder body 4, and a brake spring 3 is sleeved in a spring hole of the brake piston 2 and is tightly pressed by the brake cylinder seat 1; the spline groove of the inner hole of the friction rotor 5 is sleeved on the spline shaft at the right end of the revolving body 12, the spline groove of the excircle of the friction stator 6 is sleeved in the spline hole at the left end of the brake cylinder body 4, the friction rotor 5 and the friction stator 6 are arranged at intervals and can freely slide in the axial direction, the friction stator 6 at the right end is pressed by the brake piston 2, the friction stator 6 at the left end is pressed by the brake cylinder cover 7, and the brake cylinder cover 7 is fixedly connected with the brake cylinder body 4 through bolts; the floating shaft sleeve 8 is sleeved in an inner hole of the brake cylinder base 1 and is fixedly connected with the brake cylinder base 1 through a bolt; a bearing 9 is arranged between the floating shaft sleeve 8 and the revolving body 12, the inner ring of the bearing 9 is sleeved on the floating shaft sleeve 8, the inner ring of the bearing 9 is axially fixed with the shaft shoulder of the floating shaft sleeve 8 through a lock nut 10, the outer ring of the bearing 9 is sleeved in the inner cylindrical hole of the revolving body 12, and the outer ring of the bearing 9 is axially fixed with the step of the inner hole of the revolving body 12 through a jacking sleeve 11; the half shaft 13 is sleeved in an inner hole of the floating shaft sleeve 8, a left end flange of the half shaft is fixedly connected with the revolving body 12 through a bolt, the outer ring of the bearing 9 is pressed through the jacking sleeve 11 to realize axial fixation, and the right end of the half shaft 13 is connected with an axle transmission shaft to output power to drive wheels to walk; the right end of the revolving body 12 is sleeved in the braking cylinder body 4, and the flange plate at the left end of the revolving body 12 is fixedly connected with a tire steel ring through bolts and rotates along with a wheel.
A first sealing ring 21 for sealing between the brake cylinder seat 1 and the floating shaft sleeve 8 is arranged on the outer cylindrical surface of the floating shaft sleeve 8; a second sealing ring 22 for sealing between the brake cylinder seat 1 and the brake cylinder body 4 is arranged on the outer cylindrical surface of the brake cylinder seat 1; a third sealing ring 23 for sealing between the brake cylinder body 4 and the brake piston 2 and a fourth sealing ring 24 for sealing between the brake cylinder body 4 and the hydraulic oil chamber 32 are arranged on the outer cylindrical surface of the brake piston 2; a fifth sealing ring 25 for sealing between the brake cylinder body 4 and the brake cylinder cover 7 is arranged on the right end face of the brake cylinder cover 7, and a sixth sealing ring 26 for sealing between the brake cylinder cover 7 and the revolving body 12 is arranged on the inner cylindrical surface of the brake cylinder cover 7; a seventh seal ring 27 for sealing between the rotator 12 and the half shaft 13 is provided on the left end surface of the rotator 12.
The cavity between the left end face of the outer cylinder of the brake piston 2 and the right end face of the inner cylinder of the brake cylinder body 4 is a hydraulic oil cavity 32, two ends of the hydraulic oil cavity are sealed by a third sealing ring 23 and a fourth sealing ring 24, and the hydraulic oil cavity 32 is communicated with a hydraulic operation control system through an oil duct and an oil port joint 31 of the brake cylinder body 4 and used for controlling driving, parking braking and brake release.
The oil cavities between the brake piston 2 and the floating shaft sleeve 8 and between the revolving body 12 and the floating shaft sleeve 8 are cooling oil cavities 33, and cooling oil is injected into the cooling oil cavities 33 to lubricate the bearing 9 and cool the friction moving plate 5 and the friction fixed plate 6; the cooling oil in the cooling oil chamber 33 is sealed by a first seal ring 21, a second seal ring 22, a fifth seal ring 25, a sixth seal ring 26, a seventh seal ring 27 and an oil plug 28.
The totally-enclosed wet type brake device is of a universal structure and can be used for a non-driving steering axle or a steering drive axle and a non-steering drive axle; when the brake cylinder seat is used for a non-driving steering axle, the half shaft 13 can be omitted, and the brake cylinder seat 1 is directly connected with the steering knuckle 43; when the brake cylinder seat is used for steering a drive axle, the right end of the half shaft 13 is connected with the axle transmission shaft universal joint 42, and the brake cylinder seat 1 is connected with the steering joint 43; when the brake cylinder seat is used for a non-steering drive axle, the steering knuckle 43 can be omitted, and the brake cylinder seat 1 is connected with the flange plate 44 on the end face of the axle housing.
Claims (6)
1. A general totally closed wet hydraulic brake device is characterized in that: the totally-enclosed wet hydraulic brake device is fixedly connected with the end part of an axle through a brake cylinder seat (1), and is fixedly connected with a tire steel ring through a revolving body (12) and used for braking and releasing wheels; the totally-enclosed wet type brake device is mechanically braked by a brake spring (3) sleeved in a spring hole of a brake piston (2) and pressing a friction moving sheet (5) and a friction fixed sheet (6), and the brake is released through hydraulic power; under the non-braking working condition, the hydraulic operation control system is in a connection state, supplies oil to the hydraulic oil cavity (32), overcomes the tension of the brake spring (3), forces the brake piston (2) to move rightwards, releases the friction movable plate (5) and the friction fixed plate (6) and releases braking; under the braking working condition, a brake pedal is stepped to control a hydraulic operation control system to stop supplying pressure oil, oil in a hydraulic oil cavity (32) flows back to a hydraulic oil tank, a brake spring (3) presses a brake piston (2) to move leftwards, and a friction moving piece (5) and a friction fixed piece (6) of a friction moving piece are forced to be pressed tightly for braking.
2. A universal totally enclosed wet hydraulic brake as claimed in claim 1, wherein: the left end of the brake cylinder seat (1) is fixedly connected with the brake cylinder body (4) through a bolt, the right end of the brake cylinder seat is fixedly connected with the axle, the brake piston (2) is sleeved in the brake cylinder body (4), and the brake spring (3) is sleeved in a spring hole of the brake piston (2) and is pressed by the brake cylinder seat (1); an inner hole spline groove of a friction rotor (5) is sleeved on a right-end spline shaft of a revolving body (12), an excircle spline groove of a friction stator (6) is sleeved in a left-end spline hole of a brake cylinder body (4), the friction rotor (5) and the friction stator (6) are arranged at intervals and can freely slide in the axial direction, the right-end friction stator (6) is pressed by a brake piston (2), the left-end friction stator (6) is pressed by a brake cylinder cover (7), and the brake cylinder cover (7) is fixedly connected with the brake cylinder body (4) through bolts; the floating shaft sleeve (8) is sleeved in an inner hole of the brake cylinder seat (1) and is fixedly connected with the brake cylinder seat (1) through a bolt; a bearing (9) is arranged between the floating shaft sleeve (8) and the revolving body (12), the inner ring of the bearing (9) is sleeved on the floating shaft sleeve (8), the inner ring of the bearing (9) is axially fixed with the shaft shoulder of the floating shaft sleeve (8) through a lock nut (10), the outer ring of the bearing (9) is sleeved in the inner cylindrical hole of the revolving body (12), and the outer ring of the bearing (9) is axially fixed with the inner hole step of the revolving body (12) through a jacking sleeve (11); the half shaft (13) is sleeved in an inner hole of the floating shaft sleeve (8), a left end flange of the half shaft is fixedly connected with the revolving body (12) through a bolt, the outer ring of the bearing (9) is pressed through the jacking sleeve (11) to realize axial fixation, and the right end of the half shaft (13) is connected with an axle transmission shaft to output power to drive wheels to walk; the right end of the revolving body (12) is sleeved in the braking cylinder body (4), and a flange plate at the left end of the revolving body (12) is connected and fixed with a tire steel ring through bolts to rotate along with a wheel.
3. A universal totally enclosed wet hydraulic brake as claimed in claim 2, wherein: a first sealing ring (21) for sealing between the brake cylinder seat (1) and the floating shaft sleeve (8) is arranged on the outer cylindrical surface of the floating shaft sleeve (8); a second sealing ring (22) for sealing between the brake cylinder seat (1) and the brake cylinder body (4) is arranged on the outer cylindrical surface of the brake cylinder seat (1); a third sealing ring (23) for sealing between the brake cylinder body (4) and the brake piston (2) and a fourth sealing ring (24) for sealing between the brake cylinder body (4) and the hydraulic oil cavity (32) are arranged on the outer cylindrical surface of the brake piston (2); a fifth sealing ring (25) for sealing between the brake cylinder body (4) and the brake cylinder cover (7) is arranged on the right end face of the brake cylinder cover (7), and a sixth sealing ring (26) for sealing between the brake cylinder cover (7) and the revolving body (12) is arranged on the inner cylindrical surface of the brake cylinder cover (7); and a seventh sealing ring (27) for sealing between the revolving body (12) and the half shaft (13) is arranged on the left end surface of the revolving body (12).
4. A universal totally enclosed wet hydraulic brake as claimed in claim 1, wherein: and a cavity between the left end face of the outer cylinder of the brake piston (2) and the right end face of the inner cylinder of the brake cylinder body (4) is a hydraulic oil cavity (32), two ends of the cavity are sealed by a third sealing ring (23) and a fourth sealing ring (24), and the hydraulic oil cavity (32) is communicated with the hydraulic operation control system through an oil duct and an oil port joint (31) of the brake cylinder body (4).
5. A universal totally enclosed wet hydraulic brake as claimed in claim 1, wherein: oil cavities between the brake piston (2) and the floating shaft sleeve (8) and between the revolving body (12) and the floating shaft sleeve (8) are cooling oil cavities (33), cooling oil is injected into the cooling oil cavities (33) to lubricate the bearing (9) and cool the friction moving plate (5) and the friction fixed plate (6); the cooling oil in the cooling oil cavity (33) is sealed by a first sealing ring (21), a second sealing ring (22), a fifth sealing ring (25), a sixth sealing ring (26), a seventh sealing ring (27) and an oil plug (28).
6. A universal totally enclosed wet hydraulic brake as claimed in claim 1, wherein: the totally-enclosed wet hydraulic brake device is of a universal structure and can be used for a non-driving steering axle or a steering drive axle and a non-steering drive axle; when the brake cylinder seat is used for a non-driving steering axle, a half shaft (13) can be omitted, and the brake cylinder seat (1) is directly connected with a steering knuckle (43); when the brake cylinder seat is used for steering a drive axle, the right end of the half shaft (13) is connected with an axle transmission shaft universal joint (42), and the brake cylinder seat (1) is connected with a steering joint (43); when the brake cylinder seat is used for a non-steering drive axle, a steering knuckle (43) can be omitted, and the brake cylinder seat (1) is connected with a flange plate (44) on the end face of an axle housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021238146.7U CN212360563U (en) | 2020-06-30 | 2020-06-30 | Universal totally-enclosed wet hydraulic brake device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021238146.7U CN212360563U (en) | 2020-06-30 | 2020-06-30 | Universal totally-enclosed wet hydraulic brake device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212360563U true CN212360563U (en) | 2021-01-15 |
Family
ID=74151915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021238146.7U Active CN212360563U (en) | 2020-06-30 | 2020-06-30 | Universal totally-enclosed wet hydraulic brake device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212360563U (en) |
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2020
- 2020-06-30 CN CN202021238146.7U patent/CN212360563U/en active Active
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