CN201634366U - Unidirectional-loading self-made spiral brake - Google Patents
Unidirectional-loading self-made spiral brake Download PDFInfo
- Publication number
- CN201634366U CN201634366U CN2009202159619U CN200920215961U CN201634366U CN 201634366 U CN201634366 U CN 201634366U CN 2009202159619 U CN2009202159619 U CN 2009202159619U CN 200920215961 U CN200920215961 U CN 200920215961U CN 201634366 U CN201634366 U CN 201634366U
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- Prior art keywords
- braking
- brake
- brake axle
- braking device
- unidirectional
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- Expired - Lifetime
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Abstract
The utility model aims at providing a unidirectional-loading self-made spiral brake which has good braking response, good effect, favorable heat dissipation and longer service life and can ensure the braking reliability. In order to achieve the effects, the unidirectional-loading self-made spiral brake comprises a braking shaft, wherein driving shafts are connected to two ends of the braking shaft, a fixed part is arranged at the front end of the braking shaft; and from the beginning of the fixed part, inner friction plates, outer friction plates, an inner thread press plate torsion spring, a connecting piece and a braking coupling are also sleeved on the braking shaft, wherein the inner friction plates and the outer friction plates are alternatively arranged, the inner friction plates are meshed with the braking shaft, outer teeth are arranged on an outer ring of each outer friction plate, and inner teeth which are matched with the outer teeth on the outer ring of each outer friction plate are arranged in a roller. As the structure is adopted, the unidirectional-loading self-made spiral brake overcomes the problems of heat dissipation, and the like in a cone drum type, an expansion ring type and a ratchet type in the prior art by adopting a fully new braking way and is especially suitable for being used on an electric winch.
Description
Technical field
The utility model relates to a kind of brake equipment, relates in particular to a kind of unidirectional load self-braking spiral braking device that is used for the capstan winch braking.
Background technology
Increasing urban human is liked getting an airing from the field that comes here, if run into abominable natural environment, automobile may be trapped in the disadvantageous condition and be difficult to get away, and just needs capstan winch to help vehicle this moment and extricates oneself from a predicament.In capstan winch when work, need guarantee that motor stops or the weight that being drawn when damaging can not glide with drg, adopt the kind of drg more in the existing capstan winch, awl drum-type, piston ring type and ratchet-type are arranged, they respectively have its characteristics, but the piston ring type winch is short service life, and common ratchet winch falls to restricting to weighing down thing easily, the awl drum-type is applied on the capstan winch from serviceability and the read fortune in service life of itself to capstan winch all better to other two kinds of drgs, but from long-term service life and braking reliability aspect also be not very desirable.And above three kinds of drgs also have a common drawback, and cal val is big in promptly working, and the heat radiation difficulty has been quickened the damage of capstan winch.Therefore we gravely recognize, in order to guarantee open-air safety of driving, capstan winch of the prior art also is difficult to make the people relieved, and the weak point that one of necessary invention can overcome above-mentioned drg can satisfy the drg of capstan winch serviceability again preferably.And simple in structure, be easy to install and use.
The utility model content
The purpose of this utility model provides a kind of unidirectional load self-braking spiral braking device, and brake response is fast, and is effective, and heat radiation is good, can guarantee the reliability of braking and long service life.Simultaneously simple in structure, easy for installation, spread in the ordinary consumer easily.
In order to reach described effect, a kind of unidirectional load self-braking spiral braking device, comprise reel, two bearing seats are housed in the reel, set up brake axle between two bearing seats, the brake axle two ends are connected with transmission shaft, described brake axle front end is provided with connecting element, rise by connecting element, also be with internal friction sheet and the outside friction disc alternately installed on the brake axle successively, and negative thread pressing plate torsion spring, connecting strap, brake cupling, described internal friction sheet and brake axle engagement, described outside friction disc has external tooth on the outer ring, and described brake cupling front end sleeve is connected on the negative thread pressing plate, the outside of torsion spring and connecting strap, also be provided with in the reel with the outside friction disc outer ring with the internal tooth of external tooth coupling.
Preferably, described connecting element is and the integrated step of brake axle.Step and brake axle are one-body molded, for each parts of socket on the brake axle provide axial location.
Preferably, the lateral surface of described negative thread pressing plate and connecting strap all is provided with the lug of a pair of symmetry, the α angle of staggering mutually when installing between lug on the negative thread pressing plate and the lug on the connecting strap, and the brake cupling inboard is provided with the boss of corresponding lug.Such structure make brake cupling boss under external force can only with the lug contact action of one of negative thread pressing plate or connecting strap, played the effect of state exchange.
Preferably, the brake axle front end is provided with male splines, the female splines engagement of male splines and connecting strap inboard.Female splines by male splines and connecting strap inboard is connected with a joggle, and can adjust the initial position of connecting strap upper lug.When propulsion source turns to the drive brake cupling to rotate, brake cupling is connected with lug on the negative thread pressing plate by inboard boss earlier, driving the negative thread pressing plate turns an angle, this moment, brake cupling did not contact with lug on the connecting strap, therefore connecting strap does not affact outside friction disc and internal friction sheet yet, between outside friction disc and the internal friction sheet space is arranged.When brake cupling was rotated further, the boss on the brake cupling just drove the lug on the connecting strap, and this moment, connecting strap drove the brake axle rotation by inboard female splines.Otherwise, when brake cupling when another direction is rotated, then earlier and the lug on the connecting strap be connected.
Preferably, be provided with disk spring between described connecting element and first internal friction sheet, disk spring is made up of two plate spring sheets.Two plate spring sheets are combined into disk spring, in small space performance crest power.
The combination of three groups of internal friction sheets and outside friction disc preferably, is installed on the described brake axle.The combination of three groups of internal friction sheets and outside friction disc generally can be satisfied civilian capstan winch brake request.Concrete number still will be provided with according to the demand of drg transfer torque.
Preferably, the porose circlip of using of respective shaft bearing stationkeeping on the described reel.Circlip for bore plays axial location effects such as brake assemblies, makes whole system become as a whole, and reduces the effect that rubs on the bearing seat.
Preferably, between connecting strap and brake cupling, also be with circlip for shaft on the described brake axle.Circlip for shaft can effectively reduce the friction between connecting strap and the brake cupling, and the connection of the spline engagement between assurance connecting strap and the brake axle can not thrown off.
Preferably, also be provided with flat gasket between described disk spring and the connecting element.Flat gasket be used for the location of disk spring and reduce disk spring and connecting element between friction.
Preferably, described internal friction sheet and outside friction disc are steel casting.Steel casting is firmly wear-resisting, and the temperature transmission is fast, is applicable to friction braking mechanism.
Owing to adopted described structure, the utility model unidirectional load self-braking spiral braking device, propulsion source drives brake cupling and rotates by a direction, brake cupling drives the negative thread pressing plate earlier and rotates, there is a torsion spring to make the negative thread pressing plate that the trend that relies on outside friction disc be arranged all the time between negative thread pressing plate and the connecting strap, negative thread pressing plate under the effect of screw mechanism, outside friction disc, there is the gap between the internal friction sheet is axial, brake cupling drives connecting strap again, brake axle rotates, propulsion source drives plunging joint and presses the other direction rotation, brake cupling drives earlier and connects, brake axle rotates, negative thread pressing plate under the effect of screw mechanism, outside friction disc, there is the gap between the internal friction sheet is axial, brake cupling just drives connecting strap, brake axle rotates, rely on outside friction disc and make the negative thread pressing plate under the twisting force of negative thread pressing plate at torsion spring when after propulsion source rotates, stopping again, outside friction disc, the internal friction sheet compresses mutually, the position of the external tooth on the outside friction disc is forced into the position of corresponding reel internal tooth at this moment, outside friction disc and reel are fixed at circumferencial direction by the engagement of external tooth and internal tooth.Reel makes and is tightened to the effect that one has played brake between reel and the brake axle under the effect of load like this.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is the inner structure scheme drawing of a kind of unidirectional load self-braking spiral braking device of the utility model.
Fig. 2 is the scheme drawing of the brake axle of a kind of unidirectional load self-braking spiral braking device of the utility model.
Fig. 3 is the cross section view of a kind of unidirectional load self-braking spiral braking device of the utility model.
The specific embodiment
As Fig. 1, Fig. 2 and shown in Figure 3, a kind of unidirectional load self-braking spiral braking device of the utility model, comprise reel 10, two bearing seats 3 are housed in the reel 10, set up brake axle 2 between two bearing seats 3, brake axle 2 two ends are connected with transmission shaft 1, described brake axle 2 front ends are provided with connecting element 7, by 7 of connecting elements, also be with internal friction sheet 8 and the outside friction disc 9 alternately installed on the brake axle 2 successively, and negative thread pressing plate 12, torsion spring 13, connecting strap 14, brake cupling 16, described internal friction sheet 8 and brake axle 2 engagements, described outside friction disc has external tooth 17 on 9 outer rings, and described brake cupling 16 front end sleeves are connected on negative thread pressing plate 12, the outside of torsion spring 13 and connecting strap 14, also be provided with in the reel 10 with outside friction disc 9 outer rings with the internal tooth 18 of external tooth 17 coupling.Described connecting element 7 is and brake axle 2 integrated steps.The lateral surface of described negative thread pressing plate 12 and connecting strap 14 all is provided with the lug 11 of a pair of symmetry, the α angle of staggering when installing between lug 11 on the negative thread pressing plate 12 and the lug 11 on the connecting strap 14, and brake cupling 16 inboards are provided with the boss 21 of corresponding lug 11.Brake axle 2 front ends are provided with male splines 15, female splines 19 engagements of male splines 15 and connecting strap 14 inboards.Be provided with disk spring 6 between described connecting element 7 and first internal friction sheet 8, disk spring 6 is made up of two plate spring sheets.The combination of three groups of internal friction sheets 8 and outside friction disc 9 is installed on the described brake axle 2.Respective shaft bearing 3 stationkeeping are porose with circlip 4 on the described reel 10.Between connecting strap 14 and brake cupling 16, also be with circlip for shaft 20 on the described brake axle 2.Also be provided with flat gasket 5 between described disk spring 6 and the connecting element 7.Described internal friction sheet 8 and outside friction disc 9 are steel casting.
When installing,, install very convenient as long as most of part is socketed on the brake axle 2.The α angle but two lugs 11 that must note making negative thread pressing plate 12 and connecting strap 14 under the female splines 19 ingear effects of brake axle 2 front end male spliness 15 and connecting strap 14 inboards stagger mutually at the beginning.
The specific embodiment has following several situation:
1. when getting electric clockwise rotating, motor drives transmission shaft 1 earlier, brake cupling 16, drive two lugs 11 of negative thread pressing plate 12 more earlier by two boss 21 of brake cupling 16, the screw mechanism action that brake axle 2 and negative thread pressing plate 12 are formed, the result makes negative thread pressing plate 12, disk spring 6, flat gasket 5, internal friction sheet 8 and outside friction disc 9, became releasing orientation by being in mutual impaction state originally, at this moment torsion spring 13 is in the torsion enlarging state, after negative thread pressing plate 12 turns over α, two boss 21 of brake cupling 16 just drive negative thread pressing plate 12, two lugs 11 of connecting strap 14 rotate together, at this moment screw mechanism is just inoperative, so brake cupling 16 just rotates together by connecting strap 14 and brake axle 2.
2. when getting electric rotating counterclockwise, motor drives transmission shaft 1 earlier, brake cupling 16, again by brake cupling 16 two boss 21 drive two lugs 11 of connecting straps 14 earlier, the screw mechanism action that brake axle 2 and negative thread pressing plate 12 are formed, the result makes negative thread pressing plate 12, disk spring 6, flat gasket 5, internal friction sheet 8 and outside friction disc 9, became releasing orientation by being in mutual impaction state originally, at this moment torsion spring 13 is in the torsion enlarging state, after connecting strap 14 turns over α, two boss 21 of brake cupling 16 just drive negative thread pressing plate 12, two lugs 11 of connecting strap 14 rotate together, screw mechanism is just inoperative like this, so brake cupling 16 just rotates together by connecting strap 14 and brake axle 2.
3. when the motor dead electricity, and reel is not subjected under the effect situation of load force, torsion spring 13 got under the situation that is in the state of tightening when electric at motor originally and had laid in bigger torsion, at this moment negative thread pressing plate 12 rotates under the effect of torsion spring 13 torsion, thereby make negative thread pressing plate 12, disk spring 6, flat gasket 5, internal friction sheet 8 and outside friction disc 9 compress mutually in advance, are that brake equipment plays the condition precedent that brake action provides when having load and motor dead electricity for reel 10 under this state.
4. when the motor dead electricity, and reel 10 has been subjected under the effect situation of load force, at this moment retarder is just toward speedup direction carry-over moment, promptly pass to transmission shaft 1 from reel 10 always, drive brake axle 2 by transmission shaft 1 again, negative thread pressing plate 12, at this moment negative thread pressing plate 12 is close on the outside friction disc 9, screw mechanism on the brake axle 2 has just worked like this, promptly under the effect of load force negative thread pressing plate 12 with disk spring 6, flat gasket 5, internal friction sheet 8 and outside friction disc 9 are pressed tight more more, and the internal tooth 18 of the external tooth by outside friction disc 9 outsides 17 and reel 10 meshes together between outside friction disc 9 and the reel 10, so this brake equipment has just played brake action in this case.
5. even the steel rope that on the 4th basis motor is rotated counterclockwise on the reel 10 loosens direction, if load force causes that brake equipment will produce bigger vibrations when the rotating speed of brake axle 2 surpassed the rotating speed of motor, promptly produce the cyclic process that discharges braking-braking-release braking-braking, increase disk spring 6 for this reason, can make the moment of motor starting each friction lining also be not totally released, make load force cause that the rotating speed of brake axle 2 just can not surpass the rotating speed of motor, thereby just avoided the vibrations that brake equipment produced.
And outside friction disc 9 is connected with reel 10 in braking procedure, and all is steel casting, so the heat that produces in the braking procedure can in time come out radiating effect.
To sum up, a kind of unidirectional load self-braking spiral braking device of the utility model has overcome problems such as boring drum-type, piston ring type and the existing heat radiation of ratchet-type in the prior art by a kind of brand new brake mode.The utility model is particularly useful for using on the electric capstan.
Claims (10)
1. unidirectional load self-braking spiral braking device, comprise reel (10), two bearing seats (3) are housed in the reel (10), set up brake axle (2) between two bearing seats (3), brake axle (2) two ends are connected with transmission shaft (1), it is characterized in that: described brake axle (2) front end is provided with connecting element (7), at connecting element (7) rear, also be with internal friction sheet (8) and the outside friction disc (9) alternately installed on the brake axle (2) successively, and negative thread pressing plate (12), torsion spring (13), connecting strap (14), brake cupling (16), described internal friction sheet (8) and brake axle (2) engagement, described outside friction disc (9) has external tooth (17) on the outer ring, described brake cupling (16) front end sleeve is connected on negative thread pressing plate (12), the outside of torsion spring (13) and connecting strap (14), also be provided with in the reel (10) and outside friction disc (9) outer ring with the internal tooth (18) of external tooth (17) coupling.
2. a kind of unidirectional load self-braking spiral braking device as claimed in claim 1 is characterized in that: described connecting element (7) is and the integrated step of brake axle (2).
3. a kind of unidirectional load self-braking spiral braking device as claimed in claim 1, it is characterized in that: the lateral surface of described negative thread pressing plate (12) and connecting strap (14) all is provided with the lug (11) of a pair of symmetry, the α angle of staggering mutually when installing between lug (11) on the negative thread pressing plate (12) and the lug (11) on the connecting strap (14), brake cupling (16) inboard is provided with the boss (21) of corresponding lug (11).
4. a kind of unidirectional load self-braking spiral braking device as claimed in claim 3 is characterized in that: brake axle (2) end is provided with male splines (15), female splines (19) engagement that male splines (15) and connecting strap (14) are inboard.
5. as the wherein arbitrary described a kind of unidirectional load self-braking spiral braking device of claim 1-4, it is characterized in that: be provided with disk spring (6) between described connecting element (7) and the first internal friction sheet (8), disk spring (6) is made up of two plate spring sheets.
6. as the wherein arbitrary described a kind of unidirectional load self-braking spiral braking device of claim 1-4, it is characterized in that: the combination of three groups of internal friction sheets (8) and outside friction disc (9) is installed on the described brake axle (2).
7. as the wherein arbitrary described a kind of unidirectional load self-braking spiral braking device of claim 1-4, it is characterized in that: it is porose with circlip (4) that described reel (10) is gone up respective shaft bearing (3) stationkeeping.
8. as the wherein arbitrary described a kind of unidirectional load self-braking spiral braking device of claim 1-4, it is characterized in that: described brake axle (2) is gone up and also be with circlip for shaft (20) between connecting strap (14) and brake cupling (16).
9. as the wherein arbitrary described a kind of unidirectional load self-braking spiral braking device of claim 1-4, it is characterized in that: also be provided with flat gasket (5) between described disk spring (6) and the connecting element (7).
10. as the wherein arbitrary described a kind of unidirectional load self-braking spiral braking device of claim 1-4, it is characterized in that: described internal friction sheet (8) and outside friction disc (9) are steel casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202159619U CN201634366U (en) | 2009-12-30 | 2009-12-30 | Unidirectional-loading self-made spiral brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202159619U CN201634366U (en) | 2009-12-30 | 2009-12-30 | Unidirectional-loading self-made spiral brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201634366U true CN201634366U (en) | 2010-11-17 |
Family
ID=43078852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202159619U Expired - Lifetime CN201634366U (en) | 2009-12-30 | 2009-12-30 | Unidirectional-loading self-made spiral brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201634366U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101837938B (en) * | 2009-12-30 | 2012-09-26 | 浙江诺和机电有限公司 | Unidirectional load self-braking spiral braking device |
-
2009
- 2009-12-30 CN CN2009202159619U patent/CN201634366U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101837938B (en) * | 2009-12-30 | 2012-09-26 | 浙江诺和机电有限公司 | Unidirectional load self-braking spiral braking device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20101117 Effective date of abandoning: 20091230 |