CN209177911U - A kind of tension device - Google Patents
A kind of tension device Download PDFInfo
- Publication number
- CN209177911U CN209177911U CN201821832854.6U CN201821832854U CN209177911U CN 209177911 U CN209177911 U CN 209177911U CN 201821832854 U CN201821832854 U CN 201821832854U CN 209177911 U CN209177911 U CN 209177911U
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- gear shaft
- pawl
- tension device
- main ratchet
- ratchet
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Abstract
The utility model 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 utility model 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.
Utility model content
(1) technical problems to be solved
The technical problem to be solved by the present invention is to provide a kind of tension devices, and to solve the prior art, there are ratchets to bear
The problem of load is big, and operation is dangerous reliable, complicated for operation, inconvenient high altitude operation.
(2) technical solution
In order to solve the above technical problems, the utility model provides a kind of tension device, including operation handle component, gear
Axis, fixed pulley shell, main ratchet, friction plate, limit pawl, transmission gear, drive sprocket, movable pulley shell, driven sprocket, institute
It states gear shaft to be mounted on the fixed pulley shell, the operation handle component is mounted on one end of the gear shaft, with driving
The gear shaft rotation；The main ratchet is fixed on the gear shaft, and the limit pawl is mounted on the fixed pulley shell
On, and cooperate with the main ratchet；Friction plate is arranged in the side of the main ratchet, in the compression masterpiece 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 driving cog
Wheel is engaged with the gear shaft；The drive sprocket is connect with the driven sprocket by chain, is set in the fixed pulley shell
The drive sprocket is set, the setting driven sprocket in 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
The above-mentioned technical proposal of the utility model has the advantages that in tension device provided by the utility model, operates
The rotation of Handleset gear shaft, gear shaft rotation drives main ratchet wheel, and drives drive sprocket, chain by transmission gear
Item moves between drive sprocket and driven sprocket, and then changes the distance between movable pulley shell and fixed pulley shell, then
By limiting the cooperation of pawl and main ratchet, another axial direction of gear when operation is avoided to rotate, to realize to cargo
Traction；Wherein, since friction plate is arranged in the side of main ratchet, under the pressing force effect of operation handle component, friction plate is to master
Ratchet carries out stop, alleviates the load of main ratchet in this way, improves the service life of main ratchet, stringing operates more secure and reliable, main
Movable sprocket and driven sprocket use the principle of fixed pulley and movable pulley, more labor-saving, using operation handle Component driver gear shaft, behaviour
Make structure and the kind of drive simple and convenient, and that use the tension device of the application, facilitates high altitude operation.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model tension device；
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 the utility model tension device；
Fig. 5 is the schematic perspective view in the utility model tension device at fixed pulley shell；
Fig. 6 is the assembly relation schematic diagram of the utility model tension device.
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 embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
In the description of the utility model, it is to be understood that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate
Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand
For limitations of the present invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
As shown in figures 1 to 6, tension device provided by the utility model 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, the gear shaft 20 is mounted on the fixed pulley shell 3, and 1 component of operation handle is mounted on the gear shaft 20
One end, to drive the gear shaft 20 to rotate；The main ratchet 17 is fixed on the gear shaft 20, the limit pawl installation
Cooperate on the fixed pulley shell 3, and with the main ratchet 17；Friction plate 19 is arranged in the side of the main ratchet 17, in institute
Under the pressing force effect for stating 1 component of operation handle, friction plate 19 carries out stop to the main ratchet 17；The transmission gear 16 with
The 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 15 is connected by chain 10, the setting drive sprocket 18, the movable pulley shell 11 in the fixed pulley shell 3
The interior setting driven sprocket 15.Wherein, driven sprocket 15 is arranged in movable pulley shell 11 by follower shaft 12, chain 10
When flexible, 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 the tension device configuration gripper of the utility model, can not only make non-rectilinear towage,
And suitable operating position can be easily selected, or its load capacity is expanded exponentially with the equipment of smaller tonnage.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvements and modifications can also be made, these change
It also should be regarded as the protection scope of the utility model into modification.
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 |
|---|---|---|---|
| CN201821832854.6U CN209177911U (en) | 2018-11-06 | 2018-11-06 | A kind of tension device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821832854.6U CN209177911U (en) | 2018-11-06 | 2018-11-06 | A kind of tension device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209177911U true CN209177911U (en) | 2019-07-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821832854.6U Active CN209177911U (en) | 2018-11-06 | 2018-11-06 | A kind of tension device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209177911U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109132915A (en) * | 2018-11-06 | 2019-01-04 | 上海沃恒机械设备有限公司 | A kind of tension device |
-
2018
- 2018-11-06 CN CN201821832854.6U patent/CN209177911U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109132915A (en) * | 2018-11-06 | 2019-01-04 | 上海沃恒机械设备有限公司 | A kind of tension device |
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