CN107161899A - A kind of self-locking pulley of anti-foreign matter - Google Patents
A kind of self-locking pulley of anti-foreign matter Download PDFInfo
- Publication number
- CN107161899A CN107161899A CN201710446825.XA CN201710446825A CN107161899A CN 107161899 A CN107161899 A CN 107161899A CN 201710446825 A CN201710446825 A CN 201710446825A CN 107161899 A CN107161899 A CN 107161899A
- Authority
- CN
- China
- Prior art keywords
- wedge
- rotating shaft
- pulley
- fixed mount
- chute
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000725 suspension Substances 0.000 claims abstract description 10
- 230000005540 biological transmission Effects 0.000 claims description 7
- 230000007704 transition Effects 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 2
- 230000005484 gravity Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D3/00—Portable or mobile lifting or hauling appliances
- B66D3/04—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/06—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with radial effect
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
A kind of self-locking pulley of anti-foreign matter, including suspension ring, suspension ring bottom mounting and fixing support, the connecting plate of L-shaped is installed on fixed mount, fixed mount lower removable installs rotating shaft, pulley is installed in rotating shaft, one end of rotating shaft is hinged one end of push rod, fixed mount side opens up translot, and the other end of connecting plate is hinged the eccentric disk of sector, and the cambered surface of eccentric disk is located above the side of face of pulley, one end of bar that is articulated and connected on eccentric disk, connecting rod is located at the top of rotating shaft, and the side of connecting rod is located in translot, and end side and the push rod of connecting rod are touched.When rope translational speed within limits when, one end of push rod is hinged in rotating shaft, and the gravity of the other end of push rod is more than centrifugal force, and push rod will not touch connecting rod, so that eccentric disk will not be promoted to touch rope, rope can be transmitted freely up and down.
Description
Technical field
It is exactly a kind of self-locking pulley of anti-foreign matter the invention belongs to pulley.
Background technology
Existing pulley is when using rope high-altitude article hoisting, and rope causes article high-altitude easily because of hoist engine failure
Fall, easily cause the generation of accident, threaten the safety of staff.
The content of the invention
To solve the above problems, it is an object of the invention to provide a kind of self-locking pulley for the anti-foreign matter for being capable of rate controlling self-locking dress
Put.
The present invention to achieve the above object, is achieved through the following technical solutions：A kind of self-locking pulley of anti-foreign matter, including hang
The connecting plate of L-shaped is installed, fixed mount lower removable is installed pacifies in rotating shaft, rotating shaft on ring, suspension ring bottom mounting and fixing support, fixed mount
Pulley is filled, one end of rotating shaft is hinged one end of push rod, and fixed mount side opens up translot, and the other end of connecting plate is hinged the inclined of sector
Core, the cambered surface of eccentric disk is located above the side of face of pulley, and one end of bar that is articulated and connected on eccentric disk, connecting rod is located at rotating shaft
Top, the side of connecting rod is located in translot, and end side and the push rod of connecting rod are touched.
Further to realize the purpose of the present invention, following technical scheme can also be used：Opened respectively in described fixed mount
If the holding tank of fixing groove, C-shaped, the first chute and the second chute, the holding tank of C-shaped respectively with the first chute and the second chute phase
It is logical, supporting plate is set in fixing groove, and supporting plate is fixed on connecting plate, installs rack, the receiving of C-shaped on the wall of supporting plate side along its length
Install to be co-axially mounted on drive, drive on gear, wheel and rack engagement, gear in one end of groove and connect the one of transmission belt
Set to set in transition wheel, the first chute in end, holding tank and the second wedge, first are set in first wedge, the second chute
One end and the inclined-plane of the second wedge that wedge opens up inclined-plane are touched, the first wedge other end cylinder lever connecting rod, the end of pull bar
Fixed mount is stretched out in portion, sets spring on pull bar, and the side wall and the first wedge of both ends of the spring the first chute respectively are fixedly connected, bullet
Spring gives the first wedge thrust all the time, and the other end of transmission belt bypasses transition wheel and is connected with one end of the second wedge, the second wedge
The other end of shape block is fixedly connected with extension spring, and extension spring is fixed in the receiving groove sidewall of C-shaped, and extension spring is drawn to the second wedge all the time
Power, the second wedge sidepiece installs limited block, and supporting plate side wall opens up stopper slot, and limited block is located in stopper slot.Pull bar stretches out solid
Determine baffle plate is installed on the end of frame.Described limited block sidepiece sets inclined-plane, and the side wall of stopper slot sets inclined-plane, limited block it is oblique
Face is engaged with the inclined-plane of stopper slot.
The advantage of the invention is that：After the present invention can be fixed present invention suspension by suspension ring, rope is arranged on and slided
On wheel.When rope translational speed within limits when, one end of push rod is hinged in rotating shaft, the weight of the other end of push rod
Power is more than centrifugal force, and push rod will not touch connecting rod, so that eccentric disk will not be promoted to touch rope, rope can freely above and below
Transmission.When the translational speed of rope reaches a critical value, the speed of cable tie movable pulley and axis of rotation is increased, push rod
Centrifugal force is more than gravity, and push rod touches connecting rod.As the translational speed of rope continues to improve, push rod promotes connecting rod along horizontal stroke
Groove is moved, so that eccentric disk is rotated, eccentric disk is obtained the rope contact on cambered surface and pulley and is squeezed rope on pulley, is hindered
Continuing to move to for rope is stopped, so as to avoid falling object from high altitude.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention；Fig. 2 is one of Fig. 1 state diagram；Fig. 3 is the two of Fig. 1 state diagram；Fig. 4 is
Fig. 2 A direction views；Fig. 5 is Fig. 3 I enlarged drawing；Fig. 6 is Fig. 5 another state diagram.
Embodiment
L-shaped is installed on a kind of self-locking pulley of anti-foreign matter, including suspension ring 1, the bottom mounting and fixing support 2 of suspension ring 1, fixed mount 2
Connecting plate 9, the lower removable of fixed mount 2 installs rotating shaft 5, pulley 6 installed in rotating shaft 5, one end of rotating shaft 5 is hinged the one of push rod 4
End, the side of fixed mount 2 opens up translot 3, and the other end of connecting plate 9 is hinged the eccentric disk 8 of sector, and the cambered surface of eccentric disk 8, which is located at, to be slided
Above the side for taking turns 6 end faces, one end of bar that is articulated and connected 7 on eccentric disk 8, connecting rod 7 is located at the top of rotating shaft 5, the one of connecting rod 7
Side is located in translot 3, and end side and the push rod 4 of connecting rod 7 are touched.This structure can be outstanding by the present invention by suspension ring 1
Hang after fixing, rope is arranged on pulley 6.When rope translational speed within limits when, one end of push rod 4 is hinged
In rotating shaft 5, the gravity of the other end of push rod 4 is more than centrifugal force, as shown in figure 1, push rod 4 will not touch connecting rod 7, so that
Eccentric disk 8 will not be promoted to touch rope, rope can be transmitted freely up and down.When the translational speed of rope reaches a critical value
When, the speed that cable tie movable pulley 6 and rotating shaft 5 are rotated is increased, as shown in Fig. 2 the centrifugal force of push rod 4 is more than gravity, push rod 4 is touched
Encounter connecting rod 7.As the translational speed of rope continues to improve, as shown in figure 3, push rod 4 promotes connecting rod 7 to be moved along translot 3,
So that eccentric disk 8 is rotated, eccentric disk 8 is obtained the rope contact on cambered surface and pulley 6 and is squeezed rope on pulley 6, prevent
Continuing to move to for rope, so as to avoid falling object from high altitude.
Fixing groove 10, the holding tank 11 of C-shaped, the first chute 12 and the second chute 13 are opened up in described fixed mount 2 respectively,
The holding tank 11 of C-shaped is communicated with the first chute 12 and the second chute 13 respectively, and supporting plate 14 is set in fixing groove 10, and supporting plate 14 is fixed
On connecting plate 9, installation gear 17 in rack 16, one end of the holding tank 11 of C-shaped is installed along its length on the side wall of supporting plate 14,
Gear 17 is engaged with rack 16, and one end that transmission belt 19 is connected on drive 18, drive 18 is co-axially mounted on gear 17, is accommodated
Set to set in the first wedge 21, the second chute 13 in transition wheel 20, the first chute 12 in groove 11 and second wedge 22 be set,
One end and the inclined-plane of the second wedge 22 that first wedge 21 opens up inclined-plane are touched, the other end cylinder lever connecting rod of the first wedge 21
23, the end of pull bar 23, which is stretched out, sets spring 24 on fixed mount 2, pull bar 23, the side wall of the first chute 12 is distinguished at the two ends of spring 24
It is fixedly connected with the first wedge 21, spring 24 gives the thrust of the first wedge 21 all the time, the other end of transmission belt 19 bypasses transition
Wheel 20 is connected with one end of the second wedge 22, and the other end of the second wedge 22 is fixedly connected with extension spring 25, and extension spring 25 is fixed on C
On the side wall of holding tank 11 of shape, the pulling force of the second wedge 22 is given in extension spring 25 all the time, and the sidepiece of the second wedge 22 installs limited block 26,
The side wall of supporting plate 14 opens up stopper slot 27, and limited block 26 is located in stopper slot 27.This structure is connected in connecting plate 9 with fixed mount 2
When, promote supporting plate 14 supporting plate 14 is entered fixing groove 10, during, the rack 16 on supporting plate 14 is rotated with moving gear 17,
So that drive 18 drives the second wedge 22 to move by transmission belt 19, the inclined-plane of the second wedge 22 is wedge-shaped along first
During the inclined-plane movement of block 21, the limited block 26 on the second wedge 22 enters in the stopper slot 27 on supporting plate 14, and supporting plate 14 is consolidated
It is scheduled in fixing groove 10, so that connecting plate 9 is fixed on fixed mount 2.When dismantling supporting plate 14, pull bar 23 is pulled, makes the second wedge
Limited block 26 on shape block 22 departs from stopper slot 27, and under the pulling force effect of extension spring 25, the homing of the second wedge 22 is passed
Dynamic band 19 is rotated backward by drive 18 with moving gear 17, supporting plate 14 is left fixing groove 10, thus it is convenient by connecting plate 9 with
Fixed mount 2 is separated.The thickness of drawstring, is set not on fixed mount 2 in this structure convenient size and pulley 6 according to pulley 6
Same connecting plate 9 and diverse location, the eccentric disk 8 of size, so as to which the drawstring on pulley 6 is choked.
Pull bar 23, which stretches out, installs baffle plate 28 on the end of fixed mount 2.This structure can avoid pull bar 23 completely into
One chute 12, and convenient pulling pull bar 23.
The described sidepiece of limited block 26 sets inclined-plane, and the side wall of stopper slot 27 sets inclined-plane, the inclined-plane and limit of limited block 26
The inclined-plane of position groove 27 is engaged.This structure can be when limited block 26 enters stopper slot 27, and both inclined-planes are bonded to each other to be carried
For buffering, it is to avoid limited block 26 produces collision with stopper slot 27.
Technical scheme is not restricted in the range of embodiment of the present invention.The not detailed description of the present invention
Technology contents be known technology.
Claims (4)
1. a kind of self-locking pulley of anti-foreign matter, it is characterised in that：Including suspension ring（1）, suspension ring（1）Bottom mounting and fixing support（2）Gu,
Determine frame（2）The upper connecting plate for installing L-shaped（9）, fixed mount（2）Lower removable installs rotating shaft（5）, rotating shaft（5）Upper installation pulley
（6）, rotating shaft（5）One end be hinged push rod（4）One end, fixed mount（2）Side opens up translot（3）, connecting plate（9）The other end
It is hinged the eccentric disk of sector（8）, eccentric disk（8）Cambered surface be located at pulley（6）Above the side of end face, eccentric disk（8）On the company of being hinged
Extension bar（7）One end, connecting rod（7）Positioned at rotating shaft（5）Top, connecting rod（7）Side be located at translot（3）It is interior, connecting rod
（7）End side and push rod（4）Touch.
2. a kind of self-locking pulley of anti-foreign matter according to claim 1, it is characterised in that：Described fixed mount（2）Interior point
Fixing groove is not opened up（10）, C-shaped holding tank（11）, the first chute（12）With the second chute（13）, the holding tank of C-shaped（11）Point
Not with the first chute（12）With the second chute（13）Communicate, fixing groove（10）Interior setting supporting plate（14）, supporting plate（14）The company of being fixed on
Fishplate bar（9）On, supporting plate（14）Rack is installed along its length on the wall of side（16）, the holding tank of C-shaped（11）One end in install tooth
Wheel（17）, gear（17）With rack（16）Engagement, gear（17）On be co-axially mounted drive（18）, drive（18）Upper connection is passed
Dynamic band（19）One end, holding tank（11）Interior setting transition wheel（20）, the first chute（12）The first wedge of interior setting（21）, the
Two chutes（13）The second wedge of interior setting（22）, the first wedge（21）Open up one end and second wedge on inclined-plane（22）'s
Inclined-plane is touched, the first wedge（21）Other end cylinder lever connecting rod（23）, pull bar（23）End stretch out fixed mount（2）, pull bar
（23）Upper setting spring（24）, spring（24）Distinguish the first chute in two ends（12）Side wall and the first wedge（21）It is fixed to connect
Connect, spring（24）All the time the first wedge is given（21）Thrust, transmission belt（19）The other end bypass transition wheel（20）With the second wedge
Shape block（22）One end connection, the second wedge（22）The other end be fixedly connected with extension spring（25）, extension spring（25）It is fixed on C-shaped
Holding tank（11）On the wall of side, extension spring（25）All the time the second wedge is given（22）Pulling force, the second wedge（22）Sidepiece is installed spacing
Block（26）, supporting plate（14）Side wall opens up stopper slot（27）, limited block（26）Positioned at stopper slot（27）It is interior.
3. a kind of self-locking pulley of anti-foreign matter according to claim 2, it is characterised in that：Pull bar（23）Stretch out fixed mount
（2）End on baffle plate is installed（28）.
4. a kind of self-locking pulley of anti-foreign matter according to claim 2, it is characterised in that：Described limited block（26）Sidepiece
Inclined-plane, stopper slot are set（27）Side wall inclined-plane, limited block are set（26）Inclined-plane and stopper slot（27）Inclined-plane be engaged.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710046971 | 2017-01-22 | ||
| CN2017100469713 | 2017-01-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107161899A true CN107161899A (en) | 2017-09-15 |
Family
ID=59818482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710446825.XA Pending CN107161899A (en) | 2017-01-22 | 2017-06-14 | A kind of self-locking pulley of anti-foreign matter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107161899A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112249945A (en) * | 2019-11-07 | 2021-01-22 | 浙江润华机电有限公司 | Winch with reliable braking |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2001319A1 (en) * | 1988-10-25 | 1990-04-25 | Rene A. Marion | Safety breaking device |
| JP2005104610A (en) * | 2003-09-29 | 2005-04-21 | Hitachi Ltd | Elevator governor |
| JP2011190639A (en) * | 2010-03-16 | 2011-09-29 | Nippon Steel Corp | Fall preventing mechanism for working gondola |
| CN205039316U (en) * | 2015-09-25 | 2016-02-17 | 钱进 | From sunken formula socket |
| CN105384074A (en) * | 2015-12-29 | 2016-03-09 | 石家庄铁道大学 | Anti-falling device used for lifting mechanism of hoisting machine |
| CN207078944U (en) * | 2017-01-22 | 2018-03-09 | 国网山东省电力公司检修公司 | A kind of self-locking pulley of anti-foreign matter |
-
2017
- 2017-06-14 CN CN201710446825.XA patent/CN107161899A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2001319A1 (en) * | 1988-10-25 | 1990-04-25 | Rene A. Marion | Safety breaking device |
| JP2005104610A (en) * | 2003-09-29 | 2005-04-21 | Hitachi Ltd | Elevator governor |
| JP2011190639A (en) * | 2010-03-16 | 2011-09-29 | Nippon Steel Corp | Fall preventing mechanism for working gondola |
| CN205039316U (en) * | 2015-09-25 | 2016-02-17 | 钱进 | From sunken formula socket |
| CN105384074A (en) * | 2015-12-29 | 2016-03-09 | 石家庄铁道大学 | Anti-falling device used for lifting mechanism of hoisting machine |
| CN207078944U (en) * | 2017-01-22 | 2018-03-09 | 国网山东省电力公司检修公司 | A kind of self-locking pulley of anti-foreign matter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112249945A (en) * | 2019-11-07 | 2021-01-22 | 浙江润华机电有限公司 | Winch with reliable braking |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170915 |