CN202007848U - Coaxial type electric hydraulic disc brake - Google Patents
Coaxial type electric hydraulic disc brake Download PDFInfo
- Publication number
- CN202007848U CN202007848U CN2010205929685U CN201020592968U CN202007848U CN 202007848 U CN202007848 U CN 202007848U CN 2010205929685 U CN2010205929685 U CN 2010205929685U CN 201020592968 U CN201020592968 U CN 201020592968U CN 202007848 U CN202007848 U CN 202007848U
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- lever
- hydraulic pressure
- power hydraulic
- end cap
- disc brake
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Abstract
The utility model discloses a coaxial type electric hydraulic disc brake which is composed of three components: an electric hydraulic pushing device, lever force amplifiers and a friction brake component. Each lever force amplifier is composed of the following components: a cylindrical pin, a sliding millstone, a compression spring, a pull rod screw and a lever. An external surface of a transition end cap is provided with three hinged double-ear bases. The middle part of each force amplifying lever is respectively hinged with the middle part of each base ear. A long arm end of each force amplifying lever clings to an outer end face of a piston, and the other end clings to the pull rod screw. The cylindrical pin restrains the displacement of the lever in two directions. The lever can only swing around the cylindrical pin. One end of each pull rod screw is respectively fixed into three uniformly arranged mounting holes of the sliding millstones. The coaxial type electric hydraulic disc brake is a novel structure brake which is integrated with machine, electricity and liquid and is provided with a short gradually change process. The coaxial type electric hydraulic disc brake is suitable for deceleration and stopping brake of various mechanisms in various modern large-scale specialized loading/unloading machines, system belt conveyors and hoisting and metallurgy machinery.
Description
Technical field
The utility model relates to the break field, especially relates to a kind ofly discharging braking with the coaxial-type electro hydraulicthruster, produces the break product of braking moments with a plurality of springs compressing friction disks.
Background technique
The driving mode that traditional electromagnetic brake discharges braking is a solenoid actuated, and in general, a lot of performance index of electromagnet fall behind, below security level IP65, and the E class B insulation, braking moment is little or the like; Moreover, after electromagnetic brake discharges, during the pressure spring pressurization,, to move rapidly because elastic force is big, moment applies specified braking moment to solid of rotation, and the impact damage to coupling body is bigger like this; Special construction of the present utility model is exactly the break that a kind of coaxial-type of designing in order to overcome these defectives has certain buffer capacity.
Summary of the invention
The purpose of this utility model is: change the driving mode that coaxial circles disc type break discharges braking, improve the braking ability of break, propose a kind ofly to overcome that the defective, the structure that exist on the conventional art are comparatively succinct, reasonable in design, the coaxial-type power hydraulic pressure disc brake of good braking effect.
The utility model is made of power hydraulic pressure pushing device, lever boosting mechanism, friction catch parts three big parts.The power hydraulic pressure pushing device is made of closed threephase asynchronous, flat key, centrifugal impeller, gland nut, Oil Guide dish, cylinder sleeve, piston, black box, oiling plug screw and transition end cap; Closed threephase asynchronous is made up of motor housing, stator coil, stator iron core, rotor, ball bearing, oil sealing, sealing gasket, flat key and connection end cap.The stator coil close-fitting is in motor housing, motor housing and connection end cap core are not equipped with the ball bearing of support motor rotor, stator coil is embedded in the stator core, flat key is installed on the rotor shaft, and the friction catch parts are made of stud bolt, intermediate friction dish, land parts, spline housing, line shaft, slip mill.It is characterized in that: the lever boosting mechanism front end connects the power hydraulic pressure pushing device, and the rear end drives actuator's friction catch parts; Lever boosting mechanism quantity is 3 covers, constitutes by straight pin, slip mill, pressure spring, pull bar screw and lever.Design has the hinged ears seat of three circle distribution on the transition end cap outerplanar, three boosting levers middle part is articulated in the middle of the corresponding seat ear respectively by straight pin, the long arm end of boosting lever is close to the exterior edge face of piston, the boosting lever the other end is close to the pull bar screw, straight pin has retrained the displacement of lever both direction, and lever can only be the center swing with the straight pin; Three pull bar screw one ends are fixed in three equally distributed mounting holes of slip mill by corresponding nut respectively; Evenly distribute and the pressure spring that possesses setting pressure is placed on the stud bolt at circumferencial direction, its two ends are close to slip mill and stud bolt respectively, and stud bolt one end is connected with the transition end cap by screw thread, and the other end is fixed on the land parts by nut.
The work centre of power hydraulic pressure pushing device described in the utility model, lever boosting mechanism and friction catch parts is at same axis.
The lever boosting mechanism of three cover synchronous operations described in the utility model, and the rotating center that is uniformly distributed in the intermediate friction dish is on the same circumference in the center of circle.
Power hydraulic pressure pushing device described in the utility model uses low viscosity hydraulic oil or transformer cold oil as working medium, and working medium circulates in connecting the space that end cap and transition end cap constituted.
Described in the utility model with axle horizontal installation or coaxial setting installation.
The release that the utility model need change conventional motors tail end break drives, and the cancellation electromagnetic disc type brake discharges the electromagnet of drive part, and the driving mechanism that adopts electro hydraulicthruster and lever augmented device to form replaces electromagnet.Its braking reliability height, harmless to coupled mechanism part in the process that comes into operation, the condition that conforms is loose; The running noise of the utility model break can be designed into very low, can reach below the 35dB.Adopted the centrifugal pump technology simultaneously, power consumpiton is to increase along with traffic growth, and when the motor of electro hydraulicthruster is long-time running, motor is in low power consumpting state and has realized purpose of energy saving.The utility model be a kind of novel, collection is mechanical, electrical, liquid integrated and have the new structure break of an of short duration progressive formation, be fit to be installed in the axle head execution braking function of motor or reduction gearing mechanism transmission shaft, the deceleration and the stopping brake of various mechanisms in large-scale, special-purpose charging crane, system's belt conveyer and the lifting in suitable various modern times, the metallurgical machinery.
Description of drawings
Accompanying drawing 1 is the utility model embodiment general structure schematic representation;
Accompanying drawing 2 is the utility model cross-sectional view;
Accompanying drawing 3 is an A modular construction distribution map in the accompanying drawing 1.
Embodiment
Below in conjunction with implementation process and contrast accompanying drawing the utility model mode of execution, detailed operation principle are further described:
Referring to accompanying drawing 1, the utility model is made of power hydraulic pressure pushing device (A), three cover lever boosting mechanisms (B), friction catch parts (C) three big parts.The work centre of power hydraulic pressure pushing device (A), lever boosting mechanism (B) and friction catch parts (C) is on same axis.Power hydraulic pressure pushing device (A) links together by transition end cap (24) and lever boosting mechanism (B); Lever boosting mechanism (B) links together by slip mill (26) and friction catch parts (C).The lever boosting mechanism (B) of three cover synchronous operations, the rotating center that is uniformly distributed in intermediate friction dish (13) is on the same circumference in the center of circle.
Referring to accompanying drawing 3, power hydraulic pressure pushing device (A) partly is made of closed threephase asynchronous (D), centrifugal rotor wing pump (E), piston assembly (F) three.This three part connects and composes by connecting end cap (20).Power hydraulic pressure pushing device (A) uses low viscosity hydraulic oil or transformer cold oil as working medium, and working medium is circulation in the space that connection end cap (20) and transition end cap (24) are constituted.
Closed threephase asynchronous (D) is made up of motor housing (1), stator coil (2), stator iron core (3), rotor (4) and the ball bearing (5), oil sealing (6), sealing gasket (7), flat key (8) and the connection end cap (20) that are packaged in the motor housing (1).Stator coil (2) close-fitting is in motor housing (1), and motor housing (1) and connection end cap (20) central part are equipped with the ball bearing (5) of support motor rotor (4) respectively.The shell (1) of closed threephase asynchronous (D), staor winding (2) and stator core (3) three parts have been formed motor stator, and the working principle of threephase asynchronous is based upon on the bases such as the law of electromagnetic induction, circuital law, circuital law and electromagnetic force law; Stator coils of motor (2) is embedded in the stator core (3), when staor winding (2) passes through three-phase alternating current, produce induction electromotive force, realize electric energy conversion, produce rotating magnetic field, magnetic force acts on the mechanical support shell (1) of motor, also acts on motor rotor (4) simultaneously; When magnetic pole during along the rotation of a certain direction, the magnetic force line cutting rotor bar of magnetic pole just induces electromotive force in the sliver.The direction of electromotive force is determined by right hand rule.Because motion is relative, if magnetic pole is motionless, rotor bar rotates in the counterclockwise direction, then equally also can induce electromotive force in the sliver.Under the effect of electromotive force, closed sliver forms the loop and just produces electric current.The magnetic field interaction of this electric current and rotary pole, and make rotor bar be subjected to the electromagnetic force effect, the direction of electromagnetic force can be determined with left hand rule.By electromagnetic force and then generation electromagnetic torque, rotor (4) just rotates.The rotor (4) that is subjected to the electromagnetic torque effect and rotates, drive centrifugal impeller (9) high speed rotating by the flat key (8) that is installed on the rotor shaft, the front and back of the centrifugal impeller (9) of rotation have formed oil sucting cavity and pumping cavity, and the pressure oil of pumping cavity is along Oil Guide dish (10) blade intermediate flow mistake; Because the leading role of Oil Guide dish (10), the rotation trend of pressure oil obviously weakens, and because of the sealing of black box (22) is arranged, pressure oil acts on piston (21) plane by the piston (21) of cylinder sleeve (19) guiding, form thrust, so piston (21) produces the trend that travels forward.
Centrifugal rotor wing pump (E) drives centrifugal impeller (9) by rotor (4) centering of closed threephase asynchronous (D) by the flat key (8) that is installed on the rotor shaft, the compacted nut of centrifugal impeller (9) (18) locking; Oil Guide dish (10) is fixing by cylinder sleeve (19) and connection end cap (20), piston (21) is installed in the cylinder sleeve (19), black box (22) is finished the sealing task, the plug screw (23) that refuels is installed on the transition end cap (24), working oil chamber is to form closed inner chamber by connecting end cap (20) and transition end cap (24), is responsible for pressing the circulation of oil to oil return.
Lever boosting mechanism (B) is by straight pin (11), pressure spring (25), slip mill (26), pull bar screw (27), lever (28) constitutes, design has the hinged ears seat (24-1) of three circle distribution on transition end cap (24) outerplanar, three boosting levers (28) middle part is articulated in the middle of the corresponding seat ear respectively by straight pin (11), the long arm end of boosting lever (28) is close to the exterior edge face of piston (21), boosting lever (28) the other end is close to pull bar screw (27), straight pin (11) has retrained the displacement of lever (28) both direction, and lever (28) can only be the center swing with straight pin (11); Three pull bar screw (27) one ends are fixed in three equally distributed mounting holes of slip mill (26) by corresponding nut respectively; Evenly distribute and the pressure spring (25) that possesses setting pressure is placed on the stud bolt (12) at circumferencial direction, its two ends are close to slip mill (26) and stud bolt (12) respectively, stud bolt (12) one ends are connected with transition end cap (24) by screw thread, and the other end is fixed on the land parts (14) by nut.
Friction catch parts (C) are made of stud bolt (12), intermediate friction dish (13), land parts (14), spline housing (15), line shaft (16), slip mill (26).Intermediate friction dish (13) has transmitted the rotating power of line shaft (16) by its internal spline and spline housing (15); And land parts (14) and slip mill (26) are owing to be subjected to the fixation of equipment body (17) can not produce rotation.
Design has the hinged ears seat 24-1 of three circle distribution on transition end cap (24) outerplanar, three boosting levers (28) are articulated in the middle of the corresponding seat ear respectively by straight pin (11), straight pin (11) has retrained the displacement of boosting lever (28) both direction, and boosting lever (28) can only be the center swing with straight pin (11).Three pull bar screw (27) one ends are fixed in three equally distributed mounting holes of slip mill (26) by corresponding nut respectively; Evenly distribute and the pressure spring (25) that possesses setting pressure is placed on the stud bolt (12) at circumferencial direction, its two ends are close to slip mill (26) and stud bolt (12) respectively, stud bolt (12) one ends are connected with transition end cap (24) by screw thread, and the other end is fixed on the land parts (14) by nut.Then retrained at the equally distributed pressure spring of circumferencial direction (25) by transition end cap (24), slip mill (26) and stud bolt (12), pressure spring (25) has only the ability that slip mill (26) is produced thrust, slide the exactly positive pressure of mill (26), intermediate friction dish (13) and land parts (14) generation friction catch moment of this thrust.
The long arm end of boosting lever (28) receives the thrust that piston (21) passes over, and exports bigger tension in pull bar screw (27) by lever principle at the galianconism end, and this pulling force summation is greater than the elastic force summation of pressure spring (25); Pressure spring (25) is compressed, and also slip mill (26) is spurred simultaneously; Form the gap between slip mill (26) that is pulled and the intermediate friction dish (13); Frictional force between them also will disappear, realized removing braking (releases) otherwise., when motor stops operating, piston (21) is not when pressure chamber has oil pressure, piston (21) needs only very little external force and just can move to motor pumping cavity direction; This is just exerted pressure by pressure spring (25) and realizes the function of braking (band-type brake).
Realize that braking (band-type brake) is exactly when the no driving voltage of closed threephase asynchronous (D), pressure by pressure spring (25) puts on slip mill (26), make between slip mill (26), intermediate friction dish (13), land parts (14) three and have sizable clamping force, as long as between them relative movement trend is arranged, will stop their relative movement because of the friction torque (braking moment) that frictional force produces.
Structural principle of the present utility model also is a kind of spring normally closed disk type braker that pressurizes.Rely on pressure spring to add and be pressed between slip mill and the intermediate friction dish, the frictional force that is produced by positive pressure obtains braking moment; Hence one can see that, and break even when main circuit lost efficacy, all can reach braking (band-type brake) effect when no electric circuit; This is the fundamental function of normally closed brake. when needs discharge braking (declutching), the rotation of motor drives centrifugal impeller, produce hydraulic coupling, promote piston, make the lever separating mechanism drive the slip mill and offset spring pressure, make between two friction disks and the intermediate friction dish and form the gap, lose frictional force, i.e. braking is removed.
The utility model is applicable to that horizontal axis is installed or places the setting of below to install electro hydraulicthruster (A).
Claims (5)
1. a coaxial-type power hydraulic pressure disc brake is made of power hydraulic pressure pushing device (A), lever boosting mechanism (B), friction catch parts (C) three big parts; Power hydraulic pressure pushing device (A) is made of closed threephase asynchronous (D), flat key (8), centrifugal impeller (9), gland nut (18), Oil Guide dish (10), cylinder sleeve (19), piston (21), black box (22), oiling plug screw (23) and transition end cap (24); Closed threephase asynchronous (D) is made up of motor housing (1), stator coil (2), stator iron core (3), rotor (4), ball bearing (5), oil sealing (6), sealing gasket (7), flat key (8) and connection end cap (20); Stator coil (2) close-fitting is in motor housing (1), motor housing (1) and connection end cap (20) central part are equipped with the ball bearing (5) of support motor rotor (4) respectively, stator coil (2) is embedded in the stator core (3), flat key (8) is installed on the rotor shaft, friction catch parts (C) are by stud bolt (12), intermediate friction dish (13), land parts (14), spline housing (15), line shaft (16), slip mill (26) constitutes, it is characterized in that: lever boosting mechanism (B) front end connects power hydraulic pressure pushing device (A), and the rear end drives actuator's friction catch parts (C); Lever boosting mechanism (B) quantity is 3, constitutes by straight pin (11), slip mill (26), pressure spring (25), pull bar screw (27) and lever (28); Design has the hinged ears seat (24-1) of three circle distribution on transition end cap (24) outerplanar, three boosting levers (28) middle part is articulated in the middle of the corresponding seat ear respectively by straight pin (11), the long arm end of boosting lever (28) is close to the exterior edge face of piston (21), boosting lever (28) the other end is close to pull bar screw (27), straight pin (11) has retrained the displacement of lever (28) both direction, and lever (28) can only be the center swing with straight pin (11); Three pull bar screw (27) one ends are fixed in three equally distributed mounting holes of slip mill (26) by corresponding nut respectively; Evenly distribute and the pressure spring (25) that possesses setting pressure is placed on the stud bolt (12) at circumferencial direction, its two ends are close to slip mill (26) and stud bolt (12) respectively, stud bolt (12) one ends are connected with transition end cap (24) by screw thread, and the other end is fixed on the land parts (14) by nut.
2. coaxial-type power hydraulic pressure disc brake according to claim 1 is characterized in that: the work centre of power hydraulic pressure pushing device (A), lever boosting mechanism (B) and friction catch parts (C) is at same axis.
3. coaxial-type power hydraulic pressure disc brake according to claim 2 is characterized in that: comprise the lever boosting mechanism (B) of three cover synchronous operations, and the rotating center that is uniformly distributed in intermediate friction dish (13) is on the same circumference in the center of circle.
4. coaxial-type power hydraulic pressure disc brake according to claim 1 and 2, it is characterized in that: power hydraulic pressure pushing device (A) uses low viscosity hydraulic oil or transformer cold oil as working medium, and working medium is circulation in the space that connection end cap (20) and transition end cap (24) are constituted.
5. coaxial-type power hydraulic pressure disc brake according to claim 1 and 2 is characterized in that: install or coaxial setting installation with axle horizontal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205929685U CN202007848U (en) | 2010-11-05 | 2010-11-05 | Coaxial type electric hydraulic disc brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205929685U CN202007848U (en) | 2010-11-05 | 2010-11-05 | Coaxial type electric hydraulic disc brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202007848U true CN202007848U (en) | 2011-10-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205929685U Expired - Lifetime CN202007848U (en) | 2010-11-05 | 2010-11-05 | Coaxial type electric hydraulic disc brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202007848U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003479A (en) * | 2010-11-05 | 2011-04-06 | 江西华伍制动器股份有限公司 | Coaxial electric-hydraulic disc brake |
-
2010
- 2010-11-05 CN CN2010205929685U patent/CN202007848U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003479A (en) * | 2010-11-05 | 2011-04-06 | 江西华伍制动器股份有限公司 | Coaxial electric-hydraulic disc brake |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111012 |