CN109132915A - A kind of tension device - Google Patents
A kind of tension device Download PDFInfo
- Publication number
- CN109132915A CN109132915A CN201811315531.4A CN201811315531A CN109132915A CN 109132915 A CN109132915 A CN 109132915A CN 201811315531 A CN201811315531 A CN 201811315531A CN 109132915 A CN109132915 A CN 109132915A
- Authority
- CN
- China
- Prior art keywords
- gear shaft
- pawl
- tension device
- main ratchet
- drive sprocket
- 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
- 230000005540 biological transmission Effects 0.000 claims abstract description 27
- 230000000694 effects Effects 0.000 claims abstract description 6
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 239000011257 shell material Substances 0.000 claims 11
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 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
- B66D3/12—Chain or like hand-operated tackles with or without power transmission gearing between operating member and lifting rope, chain or cable
- B66D3/16—Chain or like hand-operated tackles with or without power transmission gearing between operating member and lifting rope, chain or cable operated by an endless chain passing over a pulley or a sprocket
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D2700/00—Capstans, winches or hoists
- B66D2700/01—Winches, capstans or pivots
- B66D2700/0116—Manually or spring operated winches
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D2700/00—Capstans, winches or hoists
- B66D2700/01—Winches, capstans or pivots
- B66D2700/0183—Details, e.g. winch drums, cooling, bearings, mounting, base structures, cable guiding or attachment of the cable to the drum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D2700/00—Capstans, winches or hoists
- B66D2700/03—Mechanisms with latches or braking devices in general for capstans, hoists or similar devices as well as braking devices actuated electrically or by fluid under pressure
Abstract
The present invention relates to a kind of pulling equipment technical field more particularly to a kind of tension devices.The tension device includes operation handle component, gear shaft, fixed pulley shell, main ratchet, friction plate, limit pawl, transmission gear, drive sprocket, movable pulley shell, the rotation of operation handle Component driver gear shaft, gear shaft rotation drives main ratchet wheel, and drive sprocket is driven by transmission gear, chain moves between drive sprocket and driven sprocket, and then change the distance of movable pulley shell and fixed pulley shell, friction plate is arranged in main ratchet side, under the pressing force effect of operation handle component, friction plate carries out stop to main ratchet, alleviate the load of main ratchet, improve the service life of main ratchet, stringing safe operation is reliable, drive sprocket and driven sprocket use the principle of fixed pulley and movable pulley, it is more labor-saving, operation handle Component driver gear shaft, it is simple to operate, using the structure and biography of the application tension device Flowing mode facilitates high altitude operation.
Description
Technical field
The present invention relates to a kind of pulling equipment technical field more particularly to a kind of tension devices.
Background technique
Currently, commonly using tension device, such as Lever Blocks in the tethered sliding of article, it is mainly used for tensing electric power
With all kinds of cables such as the electric wire of overhead transmission line, the weights such as traction, moving device, fixed large scale equipment and other items when Automobile Transportation.
Lever Blocks such as can be promoted, be drawn, being declined, being calibrated at the operations.
However the shell of existing Lever Blocks is mostly steelwork, than cumbersome；The patent Shen of CN105905822A is such as disclosed
Please, structure uses single-stranded wheel construction, and bearing capacity is limited, not laborsaving, and structure operation is unreliable；Some tension devices use ratchet
Structure, the means of retention of complete machine are ratchets, and the load of ratchet is especially big, be easy to appear pull it is motionless, phenomena such as cannot commutating, operation
Complexity runs dangerous reliable, also inconvenient high altitude operation.
Summary of the invention
(1) technical problems to be solved
The technical problem to be solved in the present invention is to provide a kind of tension devices, and to solve the prior art, there are ratchets to load greatly,
Run it is dangerous reliable, it is complicated for operation, the problem of inconvenient high altitude operation.
(2) technical solution
In order to solve the above technical problems, the present invention provides a kind of tension device, including operation handle component, gear shaft,
Fixed pulley shell, main ratchet, friction plate, limit pawl, transmission gear, drive sprocket, movable pulley shell, driven sprocket, it is described
Gear shaft is mounted on the fixed pulley shell, and the operation handle component is mounted on one end of the gear shaft, to drive
State gear shaft rotation；The main ratchet is fixed on the gear shaft, and the limit pawl is mounted on the fixed pulley shell,
And cooperate with the main ratchet；Friction plate is arranged in the side of the main ratchet, acts in the pressing force of the operation handle component
Under, friction plate carries out stop to the main ratchet；The transmission gear is coaxially fixed with the drive sprocket, the transmission gear
It is engaged with the gear shaft；The drive sprocket is connect with the driven sprocket by chain, setting in the fixed pulley shell
The drive sprocket, the interior setting driven sprocket of the movable pulley shell.
It wherein, further include clamping cap and handwheel cover, the handwheel cover is located at the end of gear shaft, and is pressed abd fixed on operation
On Handleset, the operation handle component is connect with the clamping cap, and logical clamping cap compresses the friction plate.
Wherein, the two sides of the main ratchet are respectively provided with friction plate.
Wherein, the quantity of the limit pawl is two, and two limit pawls are successively set on the main ratchet
It is circumferential.
Wherein, the operation handle component includes that handle, commutation pawl and handle ratchet, the handle ratchet are fixed on institute
It states on gear shaft, the commutation pawl is mounted in the handle, and the control handle of the commutation pawl is arranged in the handle
Outside, the commutation pawl include two pawl points, when a pawl point of the commutation pawl and the handle ratchet cooperate, gear
Axis rotates forward；When another pawl point of the commutation pawl and the handle ratchet cooperate, gear shaft is rotated backward.
Wherein, the transmission gear and the drive sprocket coaxial welding or riveting.
Wherein, the transmission gear inner hole is polygon, and the shape of the drive sprocket is polygon, the transmission gear
The form fit of inner hole and the drive sprocket.
Wherein, the fixed pulley shell and the movable pulley shell are separately connected the first hook and the second hook, and described the
Anticreep tongue piece is set on one hook and the second hook.
Wherein, safety lock is arranged in the tail end of the chain；Shackle is arranged in the lateral wall of the fixed pulley shell, unloads the company of buckling
Canvas bag is connect, to place chain.
Wherein, the material of the fixed pulley shell and the movable pulley shell is aluminium alloy；The drive sprocket and driven
Die cavity with the chain interoperation is set on sprocket wheel.
(3) beneficial effect
Above-mentioned technical proposal of the invention has the advantages that in tension device provided by the invention, operation handle component
Gear shaft rotation, gear shaft rotation drives main ratchet wheel, and drives drive sprocket by transmission gear, and chain is actively
It is moved between sprocket wheel and driven sprocket, and then changes the distance between movable pulley shell and fixed pulley shell, then pass through limit
The cooperation of pawl and main ratchet avoids another axial direction of gear when operation from rotating, to realize the traction to cargo；Its
In, since friction plate is arranged in the side of main ratchet, under the pressing force effect of operation handle component, friction plate carries out main ratchet
Stop alleviates the load of main ratchet in this way, improves the service life of main ratchet, and stringing operates more secure and reliable, drive sprocket and
Driven sprocket uses the principle of fixed pulley and movable pulley, more labor-saving, using operation handle Component driver gear shaft, side easy to operate
Just, the structure and the kind of drive of the tension device and using the application, facilitate high altitude operation.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of tension device of the present invention；
Fig. 2 is the A-A sectional view of Fig. 1；
Fig. 3 is the B-B sectional view of Fig. 1；
Fig. 4 is the matching relationship enlarged drawing of operation handle component, gear shaft and main ratchet in tension device of the present invention；
Fig. 5 is the schematic perspective view in tension device of the present invention at fixed pulley shell；
Fig. 6 is the assembly relation schematic diagram of tension device of the present invention.
In figure:
1- handle, 2- safety lock, 3- fixed pulley shell, 4- shackle, 5- commutation pawl, 6- handwheel cover, 7- first are linked up with, 8-
First limit pawl, 9- second limit pawl, 10- chain, 11- movable pulley shell, 12- follower shaft, 13- anticreep tongue piece, 14-
Second hook, 15- driven sprocket, 16- transmission gear, the main ratchet of 17-, 18- drive sprocket, 19- friction plate, 20- gear shaft,
21- handle ratchet, 22- clamping cap, 23- top tight pieces.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example is not intended to limit the scope of the invention for illustrating the present invention.
In description of the invention, it is to be understood that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower", " preceding ",
The orientation or positional relationship of the instructions such as " rear ", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is based on attached
Orientation or positional relationship shown in figure, is merely for convenience of description of the present invention and simplification of the description, rather than indication or suggestion is signified
Device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to the present invention
Limitation.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
As shown in figures 1 to 6, tension device provided by the invention includes 1 component of operation handle, gear shaft 20, fixed pulley shell
3, main ratchet 17, friction plate 19, limit pawl, transmission gear 16, drive sprocket 18, movable pulley shell 11, driven sprocket 15, institute
Gear shaft 20 to be stated to be mounted on the fixed pulley shell 3,1 component of operation handle is mounted on one end of the gear shaft 20,
To drive the gear shaft 20 to rotate；The main ratchet 17 is fixed on the gear shaft 20, and the limit pawl is mounted on institute
It states on fixed pulley shell 3, and cooperates with the main ratchet 17；Friction plate 19 is arranged in the side of the main ratchet 17, in the behaviour
Make under the pressing force effect of 1 component of handle, friction plate 19 carries out stop to the main ratchet 17；The transmission gear 16 with it is described
Drive sprocket 18 is coaxially fixed, and the transmission gear 16 is engaged with the gear shaft 20；The drive sprocket 18 with it is described driven
Sprocket wheel 15 is connected by chain 10, the setting drive sprocket 18 in the fixed pulley shell 3, is set in the movable pulley shell 11
Set the driven sprocket 15.Wherein, driven sprocket 15 is arranged in movable pulley shell 11 by follower shaft 12, and chain 10 is flexible
When, driven sprocket 15 can rotate on follower shaft 12, to keep movable pulley shell 11 mobile.
In above embodiment, 1 Component driver gear shaft 20 of operation handle rotation, the rotation of gear shaft 20 drives main ratchet 17
Rotation, and drive sprocket 18 is driven by transmission gear 16, chain 10 moves between drive sprocket 18 and driven sprocket 15, into
And change the distance between movable pulley shell 11 and fixed pulley shell 3, then by the cooperation of limit pawl and main ratchet 17, keep away
Exempt from gear shaft 20 when operation to rotate to another direction, to realize the traction to cargo；Wherein, due to the side of main ratchet 17
Friction plate 19 is set, and under the pressing force effect of 1 component of operation handle, 19 pairs of friction plate main ratchets 17 carry out stop, subtract in this way
The light load of main ratchet 17, improves the service life of main ratchet 17, stringing operates more secure and reliable, drive sprocket 18 and driven chain
Wheel 15 uses the principle of fixed pulley and movable pulley, more labor-saving, using 1 Component driver gear shaft 20 of operation handle, side easy to operate
Just.
It further, further include clamping cap 22 and handwheel cover 6, the handwheel cover 6 is located at the end of gear shaft 20, and compresses
It is fixed on 1 component of operation handle, 1 component of operation handle is connect with clamping cap 22, and logical clamping cap 22 compresses the friction plate
19.Wherein handwheel cover 6 is led to screw and is fixed on 1 component of operation handle.
Preferably, the two sides of main ratchet 17 are respectively provided with friction plate 19, further strengthen the frictional force to main ratchet 17, mention
High stop braking effect, more efficient durable, top tight pieces 23 are arranged close to the side of transmission gear 16 in the main ratchet 17, the side
Friction plate 19 is between top tight pieces 23 and main ratchet 17.
Preferably, the quantity for limiting pawl is two, including the first limit pawl 8 and the second limit pawl 9, two limits
Pawl is successively set on the circumferential direction of main ratchet 17, is protected using double pawls, more secure and reliable.
Specifically, 1 component of operation handle includes that handle 1, commutation pawl 5 and handle ratchet 21, handle ratchet 21 are fixed on
On gear shaft 20, commutation pawl 5 is mounted in handle 1, and the control handle setting of commutation pawl 5 has in 1 outside of handle
" tight ", " sky ", " pine " third gear, commutation pawl 5 are class crescent or ship shape, including two pawl points, a pawl point of the pawl 5 that commutates
With handle ratchet 21 cooperate when, handle 1 can gear shaft 20 rotate forward；Another pawl point of commutation pawl 5 and handle spine
When 21 cooperation of wheel, 1 gear shaft 20 of handle is rotated backward, and in this way by the control handle of operation commutation pawl 5, realizes gear
Forward and reverse rotation of axis 20.
Specifically, transmission gear 16 and 18 coaxial welding of drive sprocket or riveting pass through when gear shaft 20 rotates
The transmission of transmission gear 16, drive sprocket 18 rotate.
Preferably, 16 inner hole of transmission gear is polygon, and the shape of the drive sprocket 18 is polygon, the driving cog
Take turns the form fit of 16 inner holes Yu the drive sprocket 18；It is simple using gear transmission structure, it is reliable for operation.
Generally, fixed pulley shell 3 and movable pulley shell 11 are separately connected the first hook 7 and the second hook 14, and first hangs
Hook connects fixing end (electric wire of such as line bar or fixation), 14 mounting of the second hook need mobile object, first hook, 7 Hes
Anticreep tongue piece 13 is set on second hook 14, hook is avoided to fall off.
Preferably, safety lock 2 is arranged in the tail end of chain 10, prevents chain 10 from falling off from active；The fixed pulley shell 3
Lateral wall shackle 4 is set, connect canvas bag in shackle 4, to place chain 10, prevent chain 10 from contacting wire body or other objects
Body.
Preferably, the material of fixed pulley shell 3 and movable pulley shell 11 is aluminium alloy, and overall structure is lighter；The active
Die cavity with the chain 10 cooperation is set on sprocket wheel 18 and driven sprocket 15, using this special sprocket wheel moulding, realize with
The perfect cooperation of chain 10.
If the special devices such as tension device configuration gripper of the invention, can not only make non-rectilinear towage, and can
Easily to select suitable operating position, or its load capacity expanded exponentially with the equipment of smaller tonnage.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvements and modifications, these improvements and modifications can also be made
Also it should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of tension device, which is characterized in that including operation handle component, gear shaft, fixed pulley shell, main ratchet, friction
Piece, limit pawl, transmission gear, drive sprocket, movable pulley shell, driven sprocket, the gear shaft are mounted on the fixed pulley
On shell, the operation handle component is mounted on one end of the gear shaft, to drive the gear shaft to rotate；The main ratchet
It is fixed on the gear shaft, the limit pawl is mounted on the fixed pulley shell, and is cooperated with the main ratchet；It is described
Friction plate is arranged in the side of main ratchet, under the pressing force effect of the operation handle component, friction plate to the main ratchet into
Whereabouts are dynamic；The transmission gear is coaxially fixed with the drive sprocket, and the transmission gear is engaged with the gear shaft；The master
Movable sprocket is connect with the driven sprocket by chain, the setting drive sprocket, the movable pulley in the fixed pulley shell
The setting driven sprocket in shell.
2. tension device as described in claim 1, which is characterized in that further include clamping cap and handwheel cover, the handwheel cover position
In the end of gear shaft, and it is pressed abd fixed on operation handle component, the operation handle component is connect with the clamping cap, and
Logical clamping cap compresses the friction plate.
3. tension device as claimed in claim 2, which is characterized in that the two sides of the main ratchet are respectively provided with friction plate.
4. tension device as claimed in claim 3, which is characterized in that the quantity of the limit pawl is two, described in two
Limit pawl is successively set on the circumferential direction of the main ratchet.
5. tension device according to any one of claims 1-4, which is characterized in that the operation handle component include handle,
Commutation pawl and handle ratchet, the handle ratchet are fixed on the gear shaft, and the commutation pawl is mounted on the handle
In, the control handle of the commutation pawl is arranged on the outside of the handle, and the commutation pawl includes two pawl points, the commutation
When one pawl point of pawl and the handle ratchet cooperate, gear shaft is rotated forward；It is described commutation pawl another pawl point with
When the handle ratchet cooperates, gear shaft is rotated backward.
6. tension device as claimed in claim 5, which is characterized in that the transmission gear and the drive sprocket coaxial welding
Or riveting.
7. tension device as claimed in claim 6, which is characterized in that the transmission gear inner hole is polygon, the active
The shape of sprocket wheel is polygon, the form fit of the transmission gear inner hole and the drive sprocket.
8. tension device as claimed in claim 7, which is characterized in that the fixed pulley shell and movable pulley shell difference
The first hook of connection and second is linked up with, and anticreep tongue piece is arranged on first hook and the second hook.
9. tension device as claimed in claim 8, which is characterized in that safety lock is arranged in the tail end of the chain；It is described to determine cunning
Shackle is arranged in the lateral wall for taking turns shell, unloads and buckles connection canvas bag, to place chain.
10. tension device as claimed in claim 9, which is characterized in that the fixed pulley shell and the movable pulley shell
Material is aluminium alloy；Die cavity with the chain interoperation is set on the drive sprocket and driven sprocket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811315531.4A CN109132915A (en) | 2018-11-06 | 2018-11-06 | A kind of tension device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811315531.4A CN109132915A (en) | 2018-11-06 | 2018-11-06 | A kind of tension device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109132915A true CN109132915A (en) | 2019-01-04 |
Family
ID=64807703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811315531.4A Pending CN109132915A (en) | 2018-11-06 | 2018-11-06 | A kind of tension device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109132915A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110255415A (en) * | 2019-07-05 | 2019-09-20 | 浙江冠林机械有限公司 | The Lever Blocks of anti-fall off chain |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1095693A (en) * | 1965-10-15 | 1967-12-20 | Charles Henry Hewitt | Improvements in a manually operated hoist for lifting and lowering loads from an overhead support |
| CN2232910Y (en) * | 1995-07-28 | 1996-08-14 | 北京起重工具厂 | Quick pulling device for hoisting chain of chain block |
| CN1740082A (en) * | 2005-08-25 | 2006-03-01 | 邱以刚 | Light aluminium alloy chain block |
| CN103641019A (en) * | 2013-11-15 | 2014-03-19 | 王震 | Lever pulley block convenient to use |
| CN108689323A (en) * | 2018-08-07 | 2018-10-23 | 重庆美和机电有限公司 | It is a kind of without underloading Lever Blocks |
| CN209177911U (en) * | 2018-11-06 | 2019-07-30 | 上海沃恒机械设备有限公司 | A kind of tension device |
-
2018
- 2018-11-06 CN CN201811315531.4A patent/CN109132915A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1095693A (en) * | 1965-10-15 | 1967-12-20 | Charles Henry Hewitt | Improvements in a manually operated hoist for lifting and lowering loads from an overhead support |
| CN2232910Y (en) * | 1995-07-28 | 1996-08-14 | 北京起重工具厂 | Quick pulling device for hoisting chain of chain block |
| CN1740082A (en) * | 2005-08-25 | 2006-03-01 | 邱以刚 | Light aluminium alloy chain block |
| CN103641019A (en) * | 2013-11-15 | 2014-03-19 | 王震 | Lever pulley block convenient to use |
| CN108689323A (en) * | 2018-08-07 | 2018-10-23 | 重庆美和机电有限公司 | It is a kind of without underloading Lever Blocks |
| CN209177911U (en) * | 2018-11-06 | 2019-07-30 | 上海沃恒机械设备有限公司 | A kind of tension device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110255415A (en) * | 2019-07-05 | 2019-09-20 | 浙江冠林机械有限公司 | The Lever Blocks of anti-fall off chain |
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