CN207634628U - A kind of cropper belt stretcher - Google Patents
A kind of cropper belt stretcher Download PDFInfo
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- CN207634628U CN207634628U CN201721718396.9U CN201721718396U CN207634628U CN 207634628 U CN207634628 U CN 207634628U CN 201721718396 U CN201721718396 U CN 201721718396U CN 207634628 U CN207634628 U CN 207634628U
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- tensioning
- belt
- wheel
- tensioning frame
- frame
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Abstract
The utility model discloses a kind of cropper belt stretchers, belong to field of agricultural machinery, its technical solution is as follows, including engine, belt, hydraulic oil pump, it is rotatably connected to driving wheel on the engine, it is rotatably connected to driven wheel on the hydraulic oil pump, the belt is socketed on driving wheel and driven wheel, it is fixed with pump bracket on the hydraulic oil pump, the pump bracket is equipped with strainer, the strainer includes tensioning wheel, tensioning frame, the tensioning frame is factory's font steel plate, the tensioning frame bending end is rotatablely connected with pump bracket, the tensioning wheel is rotatably connected on tensioning frame one end and is abutted with belt cycle surface, the tensioning frame other end is hinged with regulating mechanism, the regulating mechanism makes tensioning wheel to belt medial movement, have the advantages that stable transmission and power loss is smaller.
Description
Technical field
The utility model is related to field of agricultural machinery, more particularly to a kind of cropper belt stretcher.
Background technology
Strainer is belt, common holding meanss on chain transmission system, its main feature is that belt, chain is kept to pass
Can possess tensile force appropriate during dynamic, to avoid belt slippage or synchronous belt jump tooth, de- tooth and the problems such as haul out.
The Chinese patent of Publication No. CN201131177Y discloses self-propelled corn combine harvester transmission device, it is logical
It crosses and the function that adhesive tape clutch makes adhesive tape realize clutch with passive belt wheel is installed in rack, although this mode can the company of playing
Driving pulley and passive belt wheel are connect, but adhesive tape clutch supports adhesive tape between driving pulley and passive belt wheel, is passed in adhesive tape
Can be by the resistance of clutch when moving clutch, and then power transmission efficiency is reduced, waste energy.
Utility model content
The purpose of this utility model is to provide a kind of cropper belt stretcher, with stable transmission and power loss
Smaller advantage.
The above-mentioned technical purpose of the utility model technical scheme is that：A kind of cropper belt
Tight device, including engine, belt, hydraulic oil pump are rotatably connected to driving wheel on the engine, turn on the hydraulic oil pump
Dynamic to be connected with driven wheel, the belt is socketed in driving wheel on driven wheel, pump bracket, the pump is fixed on the hydraulic oil pump
Frame is equipped with strainer, and the strainer includes tensioning wheel, tensioning frame, and the tensioning frame is factory's font steel plate, described
Tight frame bending end is rotatablely connected with pump bracket, and the tensioning wheel is rotatably connected on tensioning frame one end and is abutted with belt cycle surface,
The tensioning frame other end is hinged with regulating mechanism, and the regulating mechanism makes tensioning wheel to belt medial movement.
By using above-mentioned technical proposal, tensioning wheel is placed in belt outer ring, then by tensioning frame by being cut with scissors with pump bracket
The place's of connecing rotation heads into belt inwardly, increases the contact area of belt and driving wheel and driven wheel at this time, then belt and master
Frictional force between driving wheel, driven wheel increases, and then belt slippage is avoided to make stable transmission, while in the effect of regulating mechanism
Under, so that tensioning wheel is remained the state for squeezing belt, ensures that transmission has higher stability.
Further, the strainer further includes axis pin, and the axis pin is rotatably connected on tensioning frame close to regulating mechanism
One end is provided with threaded hole on the axis pin, and the regulating mechanism is threadedly coupled with the threaded hole on axis pin.
By using above-mentioned technical proposal, being threaded hole makes regulating mechanism and axis pin stable connection, at the same axis pin with
It is always vertical direction that tight frame rotation connection, which can keep regulating mechanism length direction, convenient for adjusting.
Further, the regulating mechanism includes adjusting rod, spring, and the pump bracket upper end is provided with slip hole, the adjusting
Bar is slidably connected with slip hole, and the spring is socketed in outside adjusting rod, and the spring bottom end is abutted with pump bracket, the spring top
It is abutted with adjusting rod, the axis vertical of the adjusting rod and bottom end is threadedly coupled with threaded hole.
By using above-mentioned technical proposal, tensioning wheel is set to keep squeezing the state of belt using spring force, even if being tensioned
Take turns it is vibrated, spring also can absorb vibrational energy make tensioning wheel keep original state, ensure transmission stability.
Further, it is provided with and rises as high as the banks on the axis pin, the end face of rising as high as the banks is parallel with threaded hole port, the adjusting rod bottom
On end is connected to and rises as high as the banks.
By using above-mentioned technical proposal, setting, which is risen as high as the banks, increases the contact area of adjusting rod and axis pin, makes adjusting rod and pin
Axis connection is more firm.
Further, the tensioning wheel is rotatably connected between two pieces of tensioning frames, and the tensioning frame is inserted far from axis pin one end
It is connected to bearing, wheel shaft is rotatably connected in the bearing, the tensioning wheel is rotatablely connected with wheel shaft.
By using above-mentioned technical proposal, setting bearing reduces the friction of tensioning wheel and tensioning frame, improves the rotation of tensioning wheel
Turn smoothness, promotes transmission efficiency.
Further, the tensioning frame is fixed with steel reinforcing plate, the reinforcing plate both sides close to tensioning wheel side upper end
It is connected respectively with two pieces of tensioning frames.
By using above-mentioned technical proposal, setting reinforcing plate improves the structural strength of tensioning frame, and tensioning frame is made to be not easy deformation,
Improve the service life of tensioning frame.
Further, the tensioning frame is being rotatably connected to support central tube, the support central tube with pump bracket hinged place
It is rotatablely connected with tensioning frame, the support central tube both ends abut on the inside of tensioning frame, between the support central tube and tensioning frame
It also is provided with bearing.
By using above-mentioned technical proposal, setting support central tube not only reinforces the structural strength of tensioning frame, coordinates simultaneously
Bearing keeps the rotation of tensioning frame more smooth, reduces the wear rate of tensioning frame.
In conclusion the utility model has the advantages that：
1, the contact area for increasing belt and driving wheel and driven wheel in belt outer ring by the way that tensioning wheel to be placed into, increases
Frictional force promotes transmission efficiency；
2, the state for making tensioning frame keep compressing belt by the way that regulating mechanism is arranged ensures that belt is not easy to skid and improves transmission
Stability；
3, the structural strength of tensioning frame is improved by installing reinforcing plate and support central tube additional on tensioning frame, improves tensioning frame
Service life.
Description of the drawings
Fig. 1 is the general assembly drawing of the present embodiment；
Fig. 2 is the enlarged drawing of A in Fig. 1；
Fig. 3 is the enlarged drawing of B in Fig. 1；
Fig. 4 is the enlarged drawing of C in Fig. 1；
Fig. 5 is the regulating mechanism exploded view of the present embodiment；
Fig. 6 is the thread pore structure figure of the present embodiment.
In figure, 1, rack；2, engine；21, driving wheel；3, belt；4, strainer；41, tensioning wheel；42, tensioning frame；
43, wheel shaft；44, bearing；45, support central tube；46, axis pin；47, threaded hole；48, it rises as high as the banks；49, reinforcing plate；5, regulating mechanism；
51, adjusting rod；52, spring；6, pump bracket；61, slip hole；7, hydraulic oil pump；71, driven wheel.
Specific implementation mode
The utility model is described in further detail below in conjunction with attached drawing.
The design principle of the utility model is：
By the way that tensioning wheel 41 to be placed into 3 outer ring of belt, by tensioning frame 42 by being rotated belt with 6 hinged place of pump bracket
3 are pushed into inwardly, and belt 3 is stretched and increases and the contact area of driving wheel 21 and driven wheel 71, then belt 3 and active at this time
Frictional force between wheel 21, driven wheel 71 increases, and then the skidding of belt 3 is avoided to make stable transmission, while in the effect of spring 52
Under so that tensioning wheel 41 is in the state of a dynamic equilibrium, even if cropper vibrates at work, spring 52 absorbs belt 3 and transmits
To the vibrational energy of tensioning wheel 41, avoiding tensioning wheel 41 from being detached from belt 3 influences transmission efficiency.
Embodiment：A kind of cropper belt stretcher, as shown in Figure 1, including rack 1, engine 2, pump bracket 6, hydraulic pressure
Oil pump 7, engine 2 are connected in rack 1, and hydraulic oil pump 7 is connected on pump bracket 6, and 2 one end of engine is rotatably connected to driving wheel
21,7 one end of hydraulic oil pump is rotatably connected to driven wheel 71, and driving wheel 21 is parallel with 71 axis of driven wheel, driving wheel 21 with it is driven
It is cased with belt 3 on wheel 71, avoids increasing cropper weight using gear drive by the transmission of belt 3, and then reduce by 2 grams of engine
The done idle work of clothes dead weight makes the kinetic energy that engine 2 is transferred to hydraulic oil pump 7 increase, at this time 7 exportable bigger of hydraulic oil pump
It is high-power.
In conjunction with Fig. 1, Fig. 3,6 upper end of pump bracket is rotatably connected to strainer 4, and strainer 4 includes tensioning wheel 41, tensioning frame
42, tensioning frame 42 is factory's font steel plate, and support central tube 45 is rotatably connected between two pieces of 42 bending ends of tensioning frame, supports center
Pipe 45 is cylindric bar and mid diameter is bigger than both ends diameter, and 45 mid diameter jag of support central tube is connected to two pieces of tensionings
On the inner face of frame 42,45 one end of support central tube is pierced by tensioning frame 42 and is rotatablely connected with pump bracket 6,45 other end of support central tube
Also it is pierced by tensioning frame 42 to be rotatablely connected with tensioning frame 42, bearing 44, setting branch is equipped between support central tube 45 and tensioning frame 42
Support central tube 45 not only acts as the effect of connection tensioning frame 42, also acts as the effect of support tensioning frame 42, makes two pieces of tensioning frames 42
It will not move towards, ensure the structural stability of tensioning frame 42；Bearing 44, which is arranged, simultaneously keeps the rotation of tensioning frame 42 more smooth,
The wear rate of tensioning frame 42 is reduced, the service life of tensioning frame 42 is improved.
In conjunction with Fig. 1, Fig. 2, tensioning frame 42 is rotatably connected to wheel shaft 43 close to 3 one end of belt, and wheel shaft 43 is regular cylindrical shape,
43 both ends of wheel shaft are rotatablely connected with two pieces of tensioning frames 42 respectively, and bearing 44 is also cased between 43 both ends of wheel shaft and tensioning frame 42, are taken turns
43 middle part of axis is rotatably connected to tensioning wheel 41, and tensioning wheel 41 is regular cylindrical shape, and 41 side of tensioning wheel, which is provided with slot, reduces itself weight
Amount facilitates adjusting angle, tensioning wheel 41 to be abutted with 3 cycle surface of belt, by the way that tensioning wheel 41 is placed into 3 outer ring of belt, by
Belt 3 is pushed by tensioning frame 42 inwardly by being rotated with 6 hinged place of pump bracket, and belt 3 is stretched and increases and driving wheel at this time
21 and driven wheel 71 contact area, then frictional force between belt 3 and driving wheel 21, driven wheel 71 increases, and then avoids skin
The skidding of band 3 makes stable transmission.
In conjunction with Fig. 1, Fig. 3,42 bending end of tensioning frame is fixed with reinforcing plate 49 close to 41 side of tensioning wheel, and reinforcing plate 49 is rule
Then rectangle steel plate, 49 both sides of reinforcing plate are connected with two pieces of 42 upper surfaces of tensioning frame respectively, and two pieces are tensioned by setting reinforcing plate 49
Frame 42 links together, and moving towards for limitation tensioning frame 42 is moved with opposite direction, makes to be not easy opposite move between two pieces of tensioning frames 42
It is dynamic, and then the structural strength of tensioning frame 42 is improved, improve the service life of tensioning frame 42.
In conjunction with Fig. 1, Fig. 5, the pump bracket 6 of 42 top of tensioning frame is provided with slip hole 61, and slip hole 61 is rectangular through holes and cunning
The length direction for moving hole 61 is identical as the length direction of belt 3, and 42 other end of tensioning frame is rotatably connected to axis pin 46, in axis pin 46
Portion, which is provided with to rise as high as the banks, 48 keeps 46 end face of axis pin smooth, and in conjunction with Fig. 6, axis pin 46, which is provided with to rise as high as the banks in the middle part of at 48, is provided with threaded hole 47, spiral shell
47 internal thread of pit is connected with regulating mechanism 5, and regulating mechanism 5 is slim-lined construction column structure and bottom end is smooth, is threaded hole
47 make regulating mechanism 5 and 46 stable connection of axis pin, while axis pin 46 can keep 5 length of regulating mechanism with the rotation connection of tensioning frame 42
Direction is always vertical direction, convenient for adjusting to tensioning frame 42, while setting rise as high as the banks 48 allow regulating mechanism 5 deeper into
Threaded hole 47 connects, while 5 bottom face of regulating mechanism being made to be abutted completely with 48 end faces of rising as high as the banks, and enlarged contact areas makes adjusting machine
Structure 5 connect more firm with axis pin 46.
In conjunction with Fig. 1, Fig. 4, regulating mechanism 5 includes adjusting rod 51, spring 52, and adjusting rod 51 is regular cylindrical straight-bar, is adjusted
51 one end of bar is threadedly coupled with threaded hole 47, and 51 other end of adjusting rod is slidably connected across slip hole 61 with slip hole 61, is adjusted
51 axis vertical of bar, spring 52 are socketed in outside adjusting rod 51, and 52 one end of spring is connected to 6 upper surface of pump bracket, and spring 52 is another
End is connected to 51 top of adjusting rod, the state of the holding extruding belt 3 of tensioning wheel 41 is made using 52 elastic force of spring, even if tensioning wheel 41
Vibrated, spring 52, which also can absorb vibrational energy, makes tensioning wheel 41 keep original state, ensures transmission stability.
Specific implementation process：When needing using cropper, starting engine 2 makes it that driving wheel 21 be driven to rotate, actively
Wheel 21 drives tensioning wheel 41 to make the tensioning transmission of belt 3 by tensioning frame 42, and then drives driven wheel 71 to rotate using belt 3, together
When driven wheel 71 drive hydraulic oil pump 7 work so that cropper is started to work, when 3 outside extension vibrated of belt, tensioning wheel
41 move out with belt 3, and pullling adjusting rod 51 by lever principle tensioning frame 42 at this time moves down, and spring 52 is shunk at this time
Power is stored, spring 52 converts elastic potential energy to kinetic energy and adjusting rod 51 is retracted original position later, and then tensioning wheel 41 is made to press belt 3
Original position is gone back to, ensures the stabilization of transmission.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can as needed make the present embodiment the modification of not creative contribution after reading this specification, but
As long as all being protected by Patent Law in the right of the utility model.
Claims (7)
1. a kind of cropper belt stretcher, including engine（2）, belt（3）, hydraulic oil pump（7）, the engine（2）
On be rotatably connected to driving wheel（21）, the hydraulic oil pump（7）On be rotatably connected to driven wheel（71）, the belt（3）Socket
In driving wheel（21）With driven wheel（71）On, it is characterized in that：The hydraulic oil pump（7）On be fixed with pump bracket（6）, the pump bracket
（6）It is equipped with strainer（4）, the strainer（4）Including tensioning wheel（41）, tensioning frame（42）, the tensioning frame（42）
For factory's font steel plate, the tensioning frame（42）Bending end and pump bracket（6）Rotation connection, the tensioning wheel（41）It is rotatably connected on and opens
Tight frame（42）One end and and belt（3）Cycle surface abuts, the tensioning frame（42）The other end is hinged with regulating mechanism（5）, institute
State regulating mechanism（5）Make tensioning wheel（41）To belt（3）Medial movement.
2. a kind of cropper belt stretcher according to claim 1, it is characterized in that：The strainer（4）Also wrap
Include axis pin（46）, the axis pin（46）It is rotatably connected on tensioning frame（42）Close to regulating mechanism（5）One end, the axis pin（46）On
It is provided with threaded hole（47）, the regulating mechanism（5）With axis pin（46）On threaded hole（47）It is threadedly coupled.
3. a kind of cropper belt stretcher according to claim 2, it is characterized in that：The regulating mechanism（5）Including
Adjusting rod（51）, spring（52）, the pump bracket（6）Upper end is provided with slip hole（61）, the adjusting rod（51）With slip hole（61）
It is slidably connected, the spring（52）It is socketed in adjusting rod（51）Outside, the spring（52）Bottom end and pump bracket（6）It abuts, the bullet
Spring（52）Top and adjusting rod（51）It abuts, the adjusting rod（51）Axis vertical and bottom end and threaded hole（47）Screw thread connects
It connects.
4. a kind of cropper belt stretcher according to claim 3, it is characterized in that：The axis pin（46）On be provided with it is flat
Slot（48）, described to rise as high as the banks（48）End face and threaded hole（47）Port is parallel, the adjusting rod（51）Bottom end, which is connected to, rises as high as the banks（48）
On.
5. a kind of cropper belt stretcher according to claim 4, it is characterized in that：The tensioning wheel（41）Rotation connects
It is connected on two pieces of tensioning frames（42）Between, the tensioning frame（42）Far from axis pin（46）One end is plugged with bearing（44）, the bearing
（44）Inside it is rotatably connected to wheel shaft（43）, the tensioning wheel（41）With wheel shaft（43）Rotation connection.
6. a kind of cropper belt stretcher according to claim 5, it is characterized in that：The tensioning frame（42）Close
Bearing up pulley（41）Side upper end is fixed with steel reinforcing plate（49）, the reinforcing plate（49）Both sides respectively with two pieces of tensioning frames（42）Gu
Even.
7. a kind of cropper belt stretcher according to claim 6, it is characterized in that：The tensioning frame（42）With pump
Frame（6）Hinged place is rotatably connected to support central tube（45）, the support central tube（45）With tensioning frame（42）Rotation connection, institute
State support central tube（45）Both ends abut tensioning frame（42）Inside, the support central tube（45）With tensioning frame（42）Between also set
There is bearing（44）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721718396.9U CN207634628U (en) | 2017-12-11 | 2017-12-11 | A kind of cropper belt stretcher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721718396.9U CN207634628U (en) | 2017-12-11 | 2017-12-11 | A kind of cropper belt stretcher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207634628U true CN207634628U (en) | 2018-07-20 |
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ID=62862309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721718396.9U Active CN207634628U (en) | 2017-12-11 | 2017-12-11 | A kind of cropper belt stretcher |
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| Country | Link |
|---|---|
| CN (1) | CN207634628U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115492906A (en) * | 2022-09-26 | 2022-12-20 | 徐工集团工程机械股份有限公司科技分公司 | Flexible connection device and skid-steer loader |
-
2017
- 2017-12-11 CN CN201721718396.9U patent/CN207634628U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115492906A (en) * | 2022-09-26 | 2022-12-20 | 徐工集团工程机械股份有限公司科技分公司 | Flexible connection device and skid-steer loader |
| CN115492906B (en) * | 2022-09-26 | 2023-08-18 | 徐工集团工程机械股份有限公司科技分公司 | Flexible connecting device and skid-steer loader |
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