CN200949642Y - De-loading internal-combustion engine belt tighten device - Google Patents
De-loading internal-combustion engine belt tighten device Download PDFInfo
- Publication number
- CN200949642Y CN200949642Y CN 200620031151 CN200620031151U CN200949642Y CN 200949642 Y CN200949642 Y CN 200949642Y CN 200620031151 CN200620031151 CN 200620031151 CN 200620031151 U CN200620031151 U CN 200620031151U CN 200949642 Y CN200949642 Y CN 200949642Y
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- CN
- China
- Prior art keywords
- combustion engine
- rocking bar
- belt
- rocker
- ejector pin
- 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.)
- Expired - Fee Related
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Abstract
Provided is an unloading internal combustion engine belt expanding and tightening device which is characterized in that a column frame installed on the frame is included. A rocker is articulated at the middle part of the column frame. The front end of the rocker is installed with an expanding and tightening wheel which is firmly contacted with the transmission belt. The ejector pin penetrates and is installed in the guiding hole opened in the guiding block which is fixed on the column frame. The upper end of the ejector pin contacts the pressing mechanism arranged at the upper end of the column frame. A nut is spinned on the ejector pin at the lower part of the guiding block. A thrust spring is sleeved on the ejector pin below the nut. The lower end of the thrust spring is fixed on the rocker by a binding component. A tensile spring is provided between the guiding block and front part of the rocker. The utility model with a scientific design and a reasonable structure can not only conveniently adjust the expanding and tightening force of the belt but also compensate the pressure automatically thus ensuring a relatively stable power output. Furthermore, when users shake the ignition starting manually, the utility model can separate the dynamic and the load thus enabling users to shake the machine easily.
Description
Technical field
The utility model relates to the belt tension technology, particularly relates to a kind of year formula internal-combustion engine belt tension device that takes off that is applicable to farm machinery.
Background technique
At present, mechanical transmission all can fluff after used drivign belt work a period of time, influences delivery efficiency, in order to guarantee the expanding force of belt, initial solution one is more to renew belt, the 2nd, adjust the distance between driving wheel and the driven wheel, not only bother but also increase cost, labor intensity is also big.The someone had invented the tensioner degree that the mode that pinch roller is set is adjusted belt on drivign belt afterwards, this pinch roller is firm shape structure, though it is comparatively convenient to adjust, but exist adjusted belt and belt pulley, its expanding force is along with the operation of a machine, little by little dwindling, thereby can not guarantee comparatively to stablize the output of power.
Moreover conventional art such as agricultural internal combustion power mechanism are many to be that belt pulley links to each other with load, often is to shake internal-combustion engine by manpower, comes ignition trigger.Can make the operator feel very hard like this, particularly some needs the equipment of frequent starting, and operator's working strength is very big.
Summary of the invention
The purpose of this utility model is just at existing problem in the above-mentioned prior art and custom-designed a kind of taking off carried a formula internal-combustion engine belt tension device, this belt tensioner design science, rational in infrastructure, not only can adjust the expanding force of belt easily, and can realize pressure compensation automatically, also can when manpower shakes ignition trigger power and load be thrown off, the operator can shake machine very like a cork.
The purpose of this utility model realizes by following scheme: originally take off a year formula internal-combustion engine belt tension device and comprise rack-mounted pylon, at the hinged rocking bar in pylon middle part, the front end of rocking bar is equipped with an expansion tightening wheel that closely contacts with drivign belt, push rod is installed in the pilot hole of offering in the guide pad affixed on the pylon, the push rod upper end contacts with the press mechanism of the upper end that is arranged on pylon, be positioned on the push rod of guide pad bottom and be installed with a nut, thrust spring is sleeved on the push rod of nut below, the thrust spring lower end is fixed on the rocking bar by a conjunction, is provided with an extension spring between guide pad and rocking bar front portion.
In the utility model, press mechanism is a cam by handle control, or a hydraulic-pressure pump, can regulate the upper-lower position of push rod by it.The spring lower end is fixed on the rocking bar by a hemispherical positioning block, to guarantee push rod stable and uniform ground active force is applied on the rocking bar.Expansion tightening wheel is installed in the rocking bar front end by wheel shaft.
The cross section of pylon can be ∏ shape structure, also can be other structure, can satisfy rigidity requirement and be suitable for installation exercise again and get final product.
Working principle of the present utility model and process are: the handle with sleeve cam is realized the promotion of push rod is pressed on the hemispherical positioning block by nut drive thrust spring, and then make rocking bar rotate certain angle, expansion tightening wheel acts in the middle of the drivign belt, realizes compressing belt.The effect of thrust spring in the technical program is " rigidity " problem that solves prior art, can realize effect that rocking bar elasticity is replenished, makes belt when wearing and tearing or elastic force reduce, and thrust spring can give certain elastic force (pressure) compensation.The effect of extension spring is when starting apparatus combustion engine, pulls cam handle and unclamps press mechanism, and power and load are thrown off, and can make the operator easily shake internal-combustion engine with less power.
The advantage that the utility model has compared to existing technology is: design science, rational in infrastructure, not only can adjust the expanding force of belt easily, and can realize pressure compensation automatically, guarantee comparatively stable power output, also can when manpower shakes ignition trigger power and load be thrown off, the operator can shake machine very like a cork.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
Among the figure: 1 frame, 2 belt pulleys, 3 belts, 4 expansion tightening wheels, 5 rocking bars, 6 extension springs, 7 hemispherical positioning blocks, 8 thrust springs, 9 nuts, 10 guide pads, 11 push rods, 12 cams, 13 handles, 14 pylons, 15 mounting assemblys, 16 belt pulleys, 17 annexes.
Embodiment
The utility model is further described below in conjunction with accompanying drawing:
As shown in the figure: originally take off and carry formula internal-combustion engine belt tension device and comprise by annex 17 and be installed in pylon 14 on the frame 1, the hinged rocking bar 5 at pylon 14 middle parts, the front end of rocking bar 5 is equipped with expansion tightening wheels 4 that closely contact with drivign belt 3 by wheel shaft, push rod 11 is installed in the pilot hole of offering in the guide pad affixed on the pylon 14 10, push rod 11 upper ends contact with the press mechanism of the upper end that is arranged on pylon 14, press mechanism is a cam 12 by handle 13 controls, be positioned on the push rod 11 of guide pad 10 bottoms and be installed with a nut 9, thrust spring 8 is sleeved on the push rod 11 of nut below, thrust spring 8 lower ends are fixed on the rocking bar 5 by a hemispherical positioning block 7, to guarantee push rod 11 stable and uniform ground active force are applied on the rocking bar 5.Between guide pad 10 and rocking bar 5 front portions, be provided with an extension spring 6.
Claims (4)
1, a kind of taking off carried formula internal-combustion engine belt tension device, it is characterized in that: it comprises the pylon (14) that is installed on the frame (1), at pylon (a 14) middle part hinged rocking bar (5), the front end of rocking bar is equipped with an expansion tightening wheel (4) that closely contacts with drivign belt (3), push rod (10) is installed in the pilot hole of offering in the guide pad affixed on the pylon (10), but and upper and lower displacement, push rod (11) upper end contacts with the press mechanism of the upper end that is arranged on pylon (14), be positioned on the push rod (11) of guide pad bottom and be installed with a nut (9), thrust spring (8) is sleeved on the push rod (11) of nut below, thrust spring (8) lower end is fixed on the rocking bar (5) by a conjunction, is provided with an extension spring (6) between guide pad (10) and rocking bar (5) front portion.
2, according to claim 1 taking off carried formula internal-combustion engine belt tension device, it is characterized in that: press mechanism is a cam (12) by handle (13) control.
3, according to claim 1 taking off carried formula internal-combustion engine belt tension device, and it is characterized in that: thrust spring (8) lower end is fixed on the rocking bar (5) by a hemispherical positioning block (7).
4, according to claim 1 taking off carried formula internal-combustion engine belt tension device, and it is characterized in that: expansion tightening wheel (4) is installed in rocking bar (5) front end by wheel shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620031151 CN200949642Y (en) | 2006-08-21 | 2006-08-21 | De-loading internal-combustion engine belt tighten device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620031151 CN200949642Y (en) | 2006-08-21 | 2006-08-21 | De-loading internal-combustion engine belt tighten device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200949642Y true CN200949642Y (en) | 2007-09-19 |
Family
ID=38892184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620031151 Expired - Fee Related CN200949642Y (en) | 2006-08-21 | 2006-08-21 | De-loading internal-combustion engine belt tighten device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200949642Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351466A (en) * | 2015-11-19 | 2016-02-24 | 中联重机股份有限公司 | Belt tightening pulley device |
| CN106763586A (en) * | 2016-12-12 | 2017-05-31 | 江阴职业技术学院 | Engine accessory wheel system tensioner self-adjusting apparatus |
| CN107435715A (en) * | 2017-07-21 | 2017-12-05 | 宁波新贵族运动用品有限公司 | A kind of polywedge bet automatic tension device and treadmill |
-
2006
- 2006-08-21 CN CN 200620031151 patent/CN200949642Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351466A (en) * | 2015-11-19 | 2016-02-24 | 中联重机股份有限公司 | Belt tightening pulley device |
| CN106763586A (en) * | 2016-12-12 | 2017-05-31 | 江阴职业技术学院 | Engine accessory wheel system tensioner self-adjusting apparatus |
| CN107435715A (en) * | 2017-07-21 | 2017-12-05 | 宁波新贵族运动用品有限公司 | A kind of polywedge bet automatic tension device and treadmill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |