CN206553131U - A kind of Lever Blocks brake clutch device - Google Patents
A kind of Lever Blocks brake clutch device Download PDFInfo
- Publication number
- CN206553131U CN206553131U CN201720194485.1U CN201720194485U CN206553131U CN 206553131 U CN206553131 U CN 206553131U CN 201720194485 U CN201720194485 U CN 201720194485U CN 206553131 U CN206553131 U CN 206553131U
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- Prior art keywords
- major axis
- brake
- handwheel
- ratchet
- boss
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Abstract
The utility model discloses a kind of Lever Blocks brake clutch device, it includes being installed on the brake seat with interior outside friction disc on major axis, brake hoop, commutation ratchet and handwheel successively, brake seat is fixed on major axis, commutation ratchet multiple thread spins major axis, brake hoop empty set major axis and its left end face is corresponding with outside friction disc, and its right side is fixed on commutation ratchet, handwheel circumferentially connecting of the inner side provided with angular block is on major axis, the left side of handwheel axis hole is against on the shaft shoulder of this major axis, and its right side is fixed on longitudinal end by self-locking nut；The ratchet that commutates is provided with boss on the outside of it；When friction pair is close together, angular block has setting angle poor with boss, and when the boss of the derotation, which is contradicted, arrives angular block, friction pair is produced gap and braked with complete release each other.Being braked using the utility model after such scheme in weight declines whole process not only can completely be discharged but also not influence gravity to brake, and reliability is high.
Description
【Technical field】
The utility model is related to a kind of Lever Blocks arrangement of clutch, belongs to Lever Blocks technical field.
【Background technology】
Brake seat, brake hoop, commutation ratchet, handwheel and slotted nut are installed on major axis successively, wherein, brake seat
It is screwed in multiple thread on major axis, and brake seat can be against on the shaft shoulder of this major axis, handwheel is placed on major axis, handwheel
Its axis hole left side can be against on the shaft shoulder of this major axis, and its axis hole right side of handwheel is in the slotted nut located at major axis shaft end
Gap coordinates, and can carry out the clutch gap needed for axial gap adjustment i.e. meaning releasing braking by this slotted nut, commutate ratchet
It is screwed in by multiple thread on major axis, and commutation ratchet is connected together handwheel, brake hoop empty set is on major axis, a left side for brake hoop
Side end face is corresponding with the friction plate being placed on brake seat, and the right-hand end of brake hoop is fixedly connected with commutation ratchet.
It is placed in together on brake seat by this three every the ratchet set between inside and outside friction plate.
When needing to decline weight under normal circumstances, rotating backward for commutation ratchet not only promotees to be passed to handwheel abutting fluting
Nut, and drive the gearing of brake hoop to compress effect to friction plate to release brake hoop, promote between friction plate and ratchet
Gap is produced, so that brake is disengaged.
However, Lever Blocks causes handwheel in the wild under rainy day occasion in use, its axis hole of handwheel easily rust is died from major axis
Commutation pawl wheel can not be followed, brake can not just release locking and the locking again after disengagement so that weight can not be lifted,
Lever Blocks just loses normal work；In addition, the regulation in clutch gap can be completed by adjusting slotted nut originally, now
Due to handwheel axis hole rust after death, this regulation becomes a kind of fruitless labour；Furthermore, when the ratchet that commutates stops the derotation, weight is needed
Its own gravity is leaned on to promote brake to play work (load self-made type), but commutation ratchet, handwheel and slotted nut now can
Energy three's consolidation, causes commutation ratchet can not enter spinning friction-tight pair, eventually may cause the rough sledding of weight tenesmus
Occur.
【Utility model content】
The deficiency existed for above-mentioned prior art, the utility model provides one kind, and both clutch could in weight declines whole process
By not influenceing the high Lever Blocks brake clutch device of the security reliability of braking again.
Therefore, the utility model provides following technical scheme：
A kind of Lever Blocks brake clutch device, including be installed on successively on major axis brake seat, brake hoop, commutation spine
Wheel and handwheel, wherein, brake seat is fixed on major axis, and is set with inner attrition piece, ratchet on brake seat successively and is rubbed outside
Pad, commutation ratchet is screwed on major axis by multiple thread, brake hoop empty set on major axis, the left end face of brake hoop with it is outer
Friction plate is corresponding, and is fixed on the right side of brake hoop on commutation ratchet, and its improvement is：The handwheel is provided with the inside of it
The angular block of protrusion, the handwheel circumferentially connecting on major axis, and handwheel its axis hole left side against the shaft shoulder in this major axis
On, the right side of its axis hole of handwheel is fixedly connected on major axis end by self-locking nut；The commutation ratchet is provided with the outside of it
Boss；When having differential seat angle between boss and angular block, outside friction disc is then close to ratchet, and when the commutation ratchet of the derotation, its is convex
When platform is contradicted to angular block, clutch gap is produced between outside friction disc and ratchet.
The axis hole of above-mentioned handwheel is splined hole, and handwheel passes through its splined hole spline segment circumferentially connecting corresponding with major axis.
Above-mentioned differential seat angle is 18 °~35 °.
The implementation of the braking clutch gap that release is produced completely and braking can be by the boss for the ratchet that commutates relative to hand
Take turns the corner of its angular block to realize, this novel in structural design, be skillfully constructed, provided for Lever Blocks industry a kind of brand-new
Friction auxiliary air gap adjustment mode.
The utility model has the advantage that as follows with good effect：
Because commutation ratchet can be freely rotatable and move axially and no longer be constrained by handwheel, it is advantageously：One
Aspect, when needing to decline weight, commutation ratchet can just continue the reliably derotation until its boss contradicts the angular gear of handwheel
Block, so as to form the clutch gap that braking discharges completely；On the other hand, when commutation ratchet stops the derotation, weight is needed by it certainly
When body gravity carries out the braking of load self-made type, energy conrotatory drives brake hoop to press friction pair to commutation ratchet again, to adapt to weight weight
The braking again of power needs, and then forms certain differential seat angle between angular block and boss, thus embodies the utility model and exist
Weight declines the braking having in whole process and discharges reliability completely, and does not influence the characteristics of load self-made type is braked.
Abandon prior art handwheel to be placed on major axis, the substitute is handwheel circumferentially connecting on major axis, handwheel
It is not easy rusting to die from major axis, realize weight and smoothly reliably decline, even and if the situation that rust is died from major axis occurs in handwheel, weight
Thing also smoothly can reliably decline, so as to meet Lever Blocks, normal under rainy day occasion is used in the wild.
【Brief description of the drawings】
The utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is structural representation of the present utility model；
Fig. 2 is schematic diagram when commutation ratchet is engaged with handwheel；
Fig. 3 is the stereogram of commutation ratchet；
Fig. 4 is the stereogram of handwheel.
【Embodiment】
Refer to shown in Fig. 1,2,3,4, a kind of Lever Blocks brake clutch device, including be installed on successively on major axis 1
Brake seat 2, brake hoop 3, commutation ratchet 4 and handwheel 5, wherein, brake seat 2 is fixed on major axis 1, and on brake seat 2
Inner attrition piece 23, ratchet 22 and outside friction disc 21 are set with successively, and commutation ratchet 4 is screwed on major axis 1 by multiple thread,
The empty set of brake hoop 3 is on major axis 1, and the left end face of brake hoop 3 is corresponding with outside friction disc 21, and the right side of brake hoop 3 is fixed
In on commutation ratchet 4, its improvement is：Angular block 51 of the handwheel 5 provided with protrusion on the inside of it, the handwheel 5 is circumferential
Be connected on major axis 1, and handwheel 5 its axis hole left side against on the shaft shoulder 11 of this major axis 1, the right-hand member of its axis hole of handwheel 5
Face is fixedly connected on the end of major axis 1 by self-locking nut 6；The commutation spine 4 is taken turns is provided with boss 41 on the outside of it；When boss 41 with
When having differential seat angle between angular block 51, outside friction disc 21 is then close to ratchet 22, and when the commutation ratchet 4 of the derotation, its boss 41 is supported
When contacting angular block 51, clutch gap is produced between outside friction disc 21 and ratchet 22.
Fig. 2 shows that the boss 41 of commutation ratchet 4 produces differential seat angle with the angular block 51 of handwheel 5, now outside friction disc
21 press ratchet 22 so that gapless between brake hoop 3, outside friction disc 21, ratchet 22, inner attrition piece 23, and brake seat 2
Gapless between end face part and inner attrition piece 23 just to inner attrition piece 23, brake plays braking action and is not in releasing system
Dynamic state.
Its right-hand end is fixed on commutation ratchet 4 by elastic spring 7 when brake hoop 3 is embodied.
The axis hole of handwheel 5 be splined hole, handwheel 5 by its splined hole spline segment circumferentially connecting corresponding with major axis 1, and
And, handwheel 5 is axially fixed.
Differential seat angle between boss 41 and angular block 51 is between 18 °~35 °.
The need for this differential seat angle value range can meet release braking completely, have between outside friction disc 21 and ratchet 22
0.5~1.0mm clutches gap.
Above-mentioned 18 °~35 ° differential seat angles angle of assembling that still dispatches from the factory is poor, inner attrition piece 23 now in Lever Blocks, rubs outside
Pad 21 is all brand-new without used.
After inside and outside friction plate is with experience wear for a long time, it is necessary to adjust inner attrition piece 23, ratchet 22, the and of outside friction disc 21
The mutual gap width of brake hoop 3, can first separate self-locking nut 6, handwheel 5, and by inner attrition piece 23, ratchet 22, outside friction disc
21 and brake hoop 3 be close together, then reinstall and handwheel 5 be fixed on major axis 1.
When handwheel is assembled, first compress inner attrition piece 23, ratchet 22, outside friction disc 21 and brake hoop 3, make in this case by
The splined hole of handwheel 5 is inserted onto the corresponding outer spline section of major axis 1, and makes angular block 51 positioned at its boss 41 of commutation ratchet 4
Left side, and angular setting angle difference between block 51 and boss 41 is 18 °~35 °, i.e., angular delayed 18 ° of the boss of block 51
~35 °.With reference to shown in Fig. 2,3,4.
Claims (3)
1. a kind of Lever Blocks brake clutch device, including brake seat, brake hoop, the commutation ratchet being installed on successively on major axis
And handwheel, wherein, brake seat is fixed on major axis, and is set with inner attrition piece, ratchet and external friction on brake seat successively
Piece, commutation ratchet is screwed on major axis by multiple thread, and brake hoop empty set is on major axis, and the left end face of brake hoop with rubbing outside
Pad is corresponding, and is fixed on the right side of brake hoop on commutation ratchet, it is characterised in that：The handwheel is on the inside of it provided with protrusion
Angular block, the handwheel circumferentially connecting on major axis, and handwheel its axis hole left side against on the shaft shoulder of this major axis, hand
The right side for taking turns its axis hole is fixedly connected on major axis end by self-locking nut；The commutation ratchet is provided with boss on the outside of it；
When having differential seat angle between boss and angular block, outside friction disc is then close to ratchet, and when the commutation ratchet of the derotation, its boss is supported
When contacting angular block, clutch gap is produced between outside friction disc and ratchet.
2. Lever Blocks brake clutch device according to claim 1, it is characterised in that：The axis hole of the handwheel is spline
Hole, handwheel passes through its splined hole spline segment circumferentially connecting corresponding with major axis.
3. Lever Blocks brake clutch device according to claim 1 or 2, it is characterized in that the differential seat angle be 18 °~
35°。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720194485.1U CN206553131U (en) | 2017-02-27 | 2017-02-27 | A kind of Lever Blocks brake clutch device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720194485.1U CN206553131U (en) | 2017-02-27 | 2017-02-27 | A kind of Lever Blocks brake clutch device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206553131U true CN206553131U (en) | 2017-10-13 |
Family
ID=60361371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720194485.1U Active CN206553131U (en) | 2017-02-27 | 2017-02-27 | A kind of Lever Blocks brake clutch device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206553131U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111732011A (en) * | 2020-07-15 | 2020-10-02 | 欧盾科技有限公司 | Double-power hoist |
| CN112623983A (en) * | 2021-01-06 | 2021-04-09 | 浙江双鸟机械有限公司 | Loop chain traction and lifting machine of electric direct-drive brake |
-
2017
- 2017-02-27 CN CN201720194485.1U patent/CN206553131U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111732011A (en) * | 2020-07-15 | 2020-10-02 | 欧盾科技有限公司 | Double-power hoist |
| CN112623983A (en) * | 2021-01-06 | 2021-04-09 | 浙江双鸟机械有限公司 | Loop chain traction and lifting machine of electric direct-drive brake |
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