CN2871871Y - Speed-adjusting mechanism of small gasoline engine - Google Patents
Speed-adjusting mechanism of small gasoline engine Download PDFInfo
- Publication number
- CN2871871Y CN2871871Y CN 200520010603 CN200520010603U CN2871871Y CN 2871871 Y CN2871871 Y CN 2871871Y CN 200520010603 CN200520010603 CN 200520010603 CN 200520010603 U CN200520010603 U CN 200520010603U CN 2871871 Y CN2871871 Y CN 2871871Y
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- CN
- China
- Prior art keywords
- speed
- speed adjusting
- nut
- rod
- regulating arm
- 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
The utility model discloses a speed-adjusting mechanism for a small gasoline engine, comprising a speed adjusting swing-rod and a speed adjusting arm. The bigger end of the speed adjusting arm is sleeved on the speed adjusting swing-rod, the connection end of the speed adjusting swing-rod to be connected with the speed adjusting arm is provided with an external screw thread section, the speed adjusting arm is sleeved on the speed adjusting swing-rod and is fastened by a locating nut and a locking nut. The root of the screw thread section is provided with a locating through-hole, the locating nut is the nut with a slot or a radial hole, the locating nut is fixed with the speed adjusting swing-rod using the locating pin through the hole or slot of the locating nut. The utility model has the advantages that the utility model has firm combination of the speed adjusting swing-rod and the speed adjusting arm and accurate rotation orientation so as to improve greatly the speed adjusting performance of the speed adjusting mechanism and to reduce the cost of maintenance. Moreover, the utility model has simple shape and easy manufacture of the current speed adjusting swing-rod is not changed.
Description
Technical field
The utility model relates to a kind of speed regulating mechanism, is specifically related to a kind of small-sized reciprocating type general gasoline engines speed regulating mechanism.
Background technique
The small utility gasoline engine speed regulating mechanism of domestic present use comprises speed governing fork and speed-regulating arm.The speed governing swing rod structure as shown in Figure 2, shaft part all adopts polished rod, has location shallow slot 10 on it.Speed-regulating arm 2 big end circle hole sleeves will hold circular hole fastening greatly with a square head bolt 7 and a locking nut 6 on speed governing fork 1 polished rod again, and referring to Fig. 1, installation one opening bayonet lock 8 and flat gasket 9 are located on the fork below speed-regulating arm 2 simultaneously.This speed regulating mechanism, because speed governing fork 1 shaft is smooth, when speed-regulating arm 2 was installed on the shaft, frictional force each other was less, simultaneously, speed-regulating arm 2 contacts for line with locking nut 6, so occur speed-regulating arm 2 easily not firm situation is installed, in use for some time, appearance is become flexible and is caused relatively rotating between speed-regulating arm 2 and the speed governing fork 1, the sensitivity of petrol engine speed control system is reduced, cause very big infringement for machine itself.Speed-regulating arm 2 is in installation process in addition, and square head bolt 7 and locking nut 6 be also because Tightening moment is uncontrollable, then installs not firmly too for a short time, too greatly then causes speed-regulating arm 2 big end distortion and can't repair, and can only change new parts during maintenance, causes maintenance cost to increase; And the maximum angle of the fork 1 swing mode that is stuck in shaft shallow slot 10 by opening bayonet lock 8 is controlled and is easily caused reliability to reduce, rely on the part of speed governing fork control to come off thereby cause at box house, therefore in petrol engine debugging or using process, faults such as driving, speed governing shakiness or damage machine often appear.
Summary of the invention
At the prior art above shortcomings, the purpose of this utility model provides a kind of speed governing fork and combines firm miniature gasoline engine speed regulating mechanism with speed-regulating arm.
The purpose of this utility model is achieved in that a kind of miniature gasoline engine speed regulating mechanism, comprises speed governing fork and speed-regulating arm, and the big end of speed-regulating arm is enclosed within on the speed governing fork.Connecting end with speed-regulating arm on the speed governing fork is provided with external thread section, and speed-regulating arm is placed on the speed governing fork and compresses the location by setscrew nut and locking nut.
Further improve and be that the thread section root of speed governing fork is provided with positioning through hole, described setscrew nut is the nut of slotted nut or band radial hole, by hole or notch that locating stud passes on the nut itself and speed governing fork is located.
Superiority of the present utility model is embodied in: 1, speed-regulating arm contacts with lower end setscrew nut formation face with the upper end locking nut, so impacting force is big, thereby installs firmly, simultaneously, has also avoided the big end of speed-regulating arm because of compressing the defective of being out of shape.2, because speed governing fork polished rod partly is processed with screw thread, frictional force increases when combining with speed-regulating arm, has further increased the firm degree of installation of speed governing fork and speed-regulating arm.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1-prior art speed governing fork and speed-regulating arm mounting structure schematic representation
Fig. 2-prior art speed governing fork structural representation
Fig. 3-the utility model speed governing fork and speed-regulating arm mounting structure schematic representation
Fig. 4-the utility model speed governing fork structural representation.
Embodiment
As shown in Figure 3, speed regulating mechanism of the present utility model comprises speed governing fork 1 and speed-regulating arm 2, and speed-regulating arm 2 big ends are enclosed within on the speed governing fork 1.Referring to Fig. 4, the connecting end with speed-regulating arm 2 on the speed governing fork 1 is provided with outside thread, and the root of thread section is provided with positioning through hole 3.Speed-regulating arm 2 is placed on the speed governing fork 1 and compresses the location by setscrew nut 5 and locking nut 6, setscrew nut 5 is the nut of slotted nut or band radial hole, be positioned at speed-regulating arm 2 lower ends, by hole or the positioning through hole 3 on notch and the speed governing fork 1 that locating stud 4 passes on the nut itself and speed governing fork 1 are located, locking nut 6 is positioned at speed-regulating arm 2 upper ends.
The petrol engine speed regulating mechanism that the utility model provides, the speed governing fork combines more fastening with speed-regulating arm, improved the speed adjusting performance of speed regulating mechanism greatly, has reduced maintenance cost, and has kept the simple shape of existing speed governing fork, the advantage that is easy to make.
Claims (2)
1, a kind of miniature gasoline engine speed regulating mechanism, comprise speed governing fork (1) and speed-regulating arm (2), the big end of speed-regulating arm (2) is enclosed within on the speed governing fork (1), it is characterized in that: speed governing fork (1) is gone up and the connecting end of speed-regulating arm (2) is provided with outside thread, and speed-regulating arm (2) is placed in speed governing fork (1) and upward compresses the location by setscrew nut (5) and locking nut (6).
2, miniature gasoline engine speed regulating mechanism according to claim 1, it is characterized in that: the thread section root of described speed governing fork (1) is provided with positioning through hole (3), described setscrew nut (5) is the nut of slotted nut or band radial hole, by hole or notch that locating stud (4) passes on the nut itself and speed governing fork (1) is located.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520010603 CN2871871Y (en) | 2005-12-22 | 2005-12-22 | Speed-adjusting mechanism of small gasoline engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520010603 CN2871871Y (en) | 2005-12-22 | 2005-12-22 | Speed-adjusting mechanism of small gasoline engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2871871Y true CN2871871Y (en) | 2007-02-21 |
Family
ID=37740218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520010603 Expired - Fee Related CN2871871Y (en) | 2005-12-22 | 2005-12-22 | Speed-adjusting mechanism of small gasoline engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2871871Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632417B (en) * | 2014-12-11 | 2016-11-16 | 中国北方发动机研究所(天津) | A kind of adjustable speed governing calibrating and positioning device |
-
2005
- 2005-12-22 CN CN 200520010603 patent/CN2871871Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632417B (en) * | 2014-12-11 | 2016-11-16 | 中国北方发动机研究所(天津) | A kind of adjustable speed governing calibrating and positioning device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: CHONGQING HESHENG INDUSTRY CO., LTD. Assignor: Chen Ken Contract record no.: 2010500000059 Denomination of utility model: Speed-adjusting mechanism of small gasoline engine Granted publication date: 20070221 License type: Exclusive License Record date: 20100916 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070221 Termination date: 20131222 |