CN201998236U - Oil pump for chain saw - Google Patents
Oil pump for chain saw Download PDFInfo
- Publication number
- CN201998236U CN201998236U CN2011200323940U CN201120032394U CN201998236U CN 201998236 U CN201998236 U CN 201998236U CN 2011200323940 U CN2011200323940 U CN 2011200323940U CN 201120032394 U CN201120032394 U CN 201120032394U CN 201998236 U CN201998236 U CN 201998236U
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- China
- Prior art keywords
- pump housing
- piston rod
- chain saw
- oil
- pump
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- 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 an oil pump for a chain saw, which comprises a pump body arranged on a support plate of the chain saw, wherein an oil inlet and an oil outlet are formed on the pump body; a piston rod that reciprocates horizontally relative to the pump body is arranged in the bump body; a transmission mechanism is arranged between the front end of the piston rod and the shaft head of the output shaft of the chain saw so as to enable the piston rod to rotate together with the output shaft; a rotation guiding structure is arranged between the piston rod and the pump body so as to enable the piston rod to reciprocate horizontally relative to the pump body during rotatation; a position adjusting device is arranged between the bump body and the support plate of the chain saw so as to enable the bump body to deflect leftwards and rightwards relative to the support plate of the chain saw; and an elastic correcting device for adjusting the position of the bump body to enable the transmission mechanism to maintain accurate transmission is arranged on the position adjusting device. The oil pump disclosed by the utility model has the advantages of simple and reasonable structure, reliability and practicability, not only improves the precision in control of the piston of the oil pump, but also improves the stability of the oil pumping capacity of oil pump, and is energy-saving and environment-friendly.
Description
Technical field
The utility model relates to grease pump, particularly a kind of chain saw oil pump.
Background technology
Chain saw is widely used in fields such as family, gardens, forest, and chain saw is when work, transmission mechanism wherein and saw chain are all running up, because friction can produce a large amount of heats, need in time be lubricated to prevent that saw chain is overheated and cause chain saw damage even user to come to harm.Mainly contain plunger oil pump, turbine and worm formula oil pump, hand oil pump etc. on the present stage market, but in the use of chain saw, foreign material such as wood chip stop up oil-out easily, cause oil pump not fuel-displaced, oil pump collides with owing to the unstable displacement easily of fixed form even with transmission mechanism or saw chain and causes damage under the violent vibration environment when chain saw is worked in addition.
China national Department of Intellectual Property is called the utility model patent of chain saw in a name of Granted publication on the 11st February in 2009, Granted publication number is CN201192009Y, a kind of chain saw is disclosed in this patent specification, comprise fueller, fueller comprises oil pump, the reciprocating motion that realizes plunger of conflicting of the cam of transmission mechanism interlock and the plunger of oil pump realizes oil pump pump oil, though such structure has utilized the kinetic energy of transmission mechanism to realize the reciprocating motion of fuel feed pump plunger, but cam structure instability, inaccuracy, it is irregular to cause plunger to move back and forth easily, can make the variation of oil pump internal pressure and pump oil mass size inhomogeneous, situations such as leakage of oil appear easily, not only cause the waste on the resource, also influence the user and use, environment is also had to a certain degree pollution.
The utility model content
Problem to be solved in the utility model just provides a kind of chain saw oil pump, and is simple and reasonable for structure, reliable and practical, not only improved the accuracy of oil pump piston control, also improved the stability of oil pump pump oil mass, energy-conserving and environment-protective.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme: a kind of chain saw oil pump, comprise the pump housing that is located on the chain saw gripper shoe, the pump housing is provided with oil-in and oil-out, be provided with the relative pump housing in the pump housing and make the piston rod of horizontal reciprocating movement, it is characterized in that: be provided with transmission mechanism between the spindle nose of the front end of described piston rod and chain saw output shaft piston rod is rotated with output shaft, the relative pump housing is made horizontal reciprocating movement when being provided with the rotary steering structure between piston rod and the pump housing piston rod being rotated, be provided with position adjustment structure between the pump housing and the chain saw gripper shoe and make the relative chain saw gripper shoe of pump housing left and right sides deflection, on position adjustment structure, be provided with and adjust pump housing position and make transmission mechanism keep the elasticity means for correcting of accurate transmission.
Further, described transmission mechanism is an engagement transmission mechanism, and engagement transmission mechanism comprises the worm gear that is located at the piston rod front end and be located at chain saw output shaft spindle nose and worm gear engaged worm that described worm screw is located at the right side of worm gear.Engaged transmission makes fuel-displaced more even.
Further, described rotary steering structure comprises and is located on the piston rod around the annular groove of piston rod outer surface and is fixed in guide way on the pump housing, guide way is provided with one and stretches into the protrusion piece that cooperates with annular groove in the annular groove, the relative piston rod axis in plane, annular groove place tilts, and the distance of annular groove between piston rod axis upslide shadow two ends is not more than the stroke of piston rod.
Further, described piston rod is provided with and piston rod interference fit stationary sleeve, and annular groove is located on the outside wall surface of sleeve.
Further, be provided with piston bush in the described pump housing, piston bush and pump housing interference fit, oil-in and oil-out all are communicated with the piston bush inner chamber, and piston rod cooperates the relative pump housing to make horizontal reciprocating movement with the piston bush internal chamber wall.Because oil pump is higher to sealing requirements, increase piston bush and cooperate with piston rod, piston bush production and processing separately is convenient to improve precision, and interchangeability is good.
Further, the front end of described piston bush stretches out the pump housing, and described guide way is located at the front end of piston bush, is provided with positioning convex at pump housing outer surface, is buckled on the positioning convex guide way is located being provided with the clasp that extends back on the guide way.
Further, described position adjustment structure comprises reference column I and the reference column II that is located on the chain saw gripper shoe, also comprise switching ring body that is located at pump housing right side and the spacing ring body that is located at pump housing left side, spacing ring body is provided with the waist hole, reference column I is located at pump housing right side and the switching of switching ring body, reference column II is located at pump housing left side and passes from the waist hole, the waist hole length is greater than the diameter on reference column II top, described elasticity means for correcting comprises the torsion spring that is located on the reference column I, and the head of torsion spring is walked around rear side that the pump housing is against spacing ring body, and the pump housing is kept with reference column I is the trend that the center clockwise rotates.Make the pump housing axis deflection to the right of the relative initial position of the pump housing by the elastic acting force of torsion spring, drive piston rod deflection to the right, make between worm gear and the worm screw to keep tight engagement; While, often with strenuous vibration, the pump housing is the pump housing axis deflection left of initial position relatively in chain saw work, worm gear is broken away from worm screw cooperate, and increases torsion spring and just can avoid such situation generation.
After adopting technique scheme, the utlity model has following advantage: easy for installation, improved service life, fuel-displaced even, energy savings.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is the structural representation of a kind of embodiment of the utility model;
Fig. 2 is an internal structure schematic diagram embodiment illustrated in fig. 1;
Fig. 3 is the structural representation of annular groove on the sleeve.
The specific embodiment
The structural representation of a kind of embodiment of the utility model as shown in Figures 1 to 3, a kind of chain saw oil pump, comprise the pump housing 1 that is located on the chain saw gripper shoe 8, the pump housing is provided with oil-in 11 and oil-out 12, be provided with the relative pump housing in the pump housing and make the piston rod 2 of horizontal reciprocating movement, being provided with transmission mechanism between the spindle nose of the front end of described piston rod and chain saw output shaft 9 makes piston rod rotate with output shaft, the relative pump housing is made horizontal reciprocating movement when being provided with the rotary steering structure between piston rod and the pump housing piston rod being rotated, be provided with position adjustment structure between the pump housing and the chain saw gripper shoe and make the relative chain saw gripper shoe of pump housing left and right sides deflection, on position adjustment structure, be provided with and adjust pump housing position and make transmission mechanism keep the accurately elasticity means for correcting of engagement.
Described transmission mechanism is an engagement transmission mechanism, and engagement transmission mechanism comprises the worm gear 21 that is located at the piston rod front end and be located at chain saw output shaft spindle nose and worm gear engaged worm 91 that described worm screw is located at the right side of worm gear.Described rotary steering structure comprises and is located on the piston rod around the annular groove 22 of piston rod outer surface and is fixed in guide way 3 on the pump housing, guide way is provided with one and stretches into the protrusion piece 31 that cooperates with annular groove in the annular groove, the relative piston rod axis in plane, annular groove place tilts, and the distance of annular groove between piston rod axis upslide shadow two ends is not more than the stroke of piston rod.In the present embodiment, described piston rod is provided with and piston rod interference fit stationary sleeve 4, and annular groove is located on the outside wall surface of sleeve.Be provided with piston bush 5 in the described pump housing, piston bush and pump housing interference fit, oil-in and oil-out all are communicated with the piston bush inner chamber, and piston rod cooperates the relative pump housing to make horizontal reciprocating movement with the piston bush internal chamber wall.The front end of described piston bush stretches out the pump housing, and described guide way is located at the front end of piston bush, is provided with positioning convex 13 at pump housing outer surface, is buckled on the positioning convex guide way is located being provided with the clasp 32 that extends back on the guide way.Described position adjustment structure comprises reference column I81 and the reference column II82 that is located on the chain saw gripper shoe, also comprise switching ring body 14 that is located at pump housing right side and the spacing ring body 15 that is located at pump housing left side, spacing ring body is provided with waist hole 16, reference column I is located at pump housing right side and the switching of switching ring body, reference column II is located at pump housing left side and passes from the waist hole, the waist hole length is greater than the diameter on reference column II top, described elasticity means for correcting comprises the torsion spring 6 that is located on the reference column I, and the head 61 of torsion spring is walked around rear side that the pump housing is against spacing ring body, and the pump housing is kept with reference column I is the trend that the center clockwise rotates.In the present embodiment, a head with torsion spring is against on the spacing ring body and can realizes its function.It is the engagement distance of regulating between worm gear and the worm screw that torsion spring mainly acts on.When engagement is too tight after worm gear and the worm screw installation, frictional force is very big, work long hours and to cause worm gear and worm screw serious wear, may make oil pump not fuel-displaced, do not contact can not mesh the time and when worm gear and worm screw the back is installed, oil pump can be not fuel-displaced yet, behind the employing torsion spring, owing to the elastic force effect of torsion spring, can eliminate the gap of worm gear and worm screw.Therefore when worm gear and worm screw are installed, do not need to allow installations that directly closely cooperate of worm gear and worm screw, and only need the position correspondence to get final product, simplified installation process.
In the foregoing description, described worm screw is located at the right side of worm gear, therefore torsion spring is located at the right side of the pump housing, allow the deflection to the right of the relative pump housing axis of the pump housing, if and when worm screw is located at the left side of worm gear, accordingly torsion spring is located at pump housing left side, allow the deflection left of the relative pump housing axis of the pump housing get final product.
Except that above preferred embodiment, the utility model also has other embodiment, those skilled in the art can make various changes and distortion according to the utility model, only otherwise break away from spirit of the present utility model, all should belong to the defined scope of the utility model claims.
Claims (7)
1. chain saw oil pump, comprise the pump housing (1) that is located on the chain saw gripper shoe (8), the pump housing is provided with oil-in (11) and oil-out (12), be provided with the relative pump housing in the pump housing and make the piston rod of horizontal reciprocating movement (2), it is characterized in that: be provided with transmission mechanism between the spindle nose of the front end of described piston rod and chain saw output shaft (9) piston rod is rotated with output shaft, the relative pump housing is made horizontal reciprocating movement when being provided with the rotary steering structure between piston rod and the pump housing piston rod being rotated, be provided with position adjustment structure between the pump housing and the chain saw gripper shoe and make the relative chain saw gripper shoe of pump housing left and right sides deflection, on position adjustment structure, be provided with and adjust pump housing position and make transmission mechanism keep the elasticity means for correcting of accurate transmission.
2. a kind of chain saw oil pump according to claim 1, it is characterized in that: described transmission mechanism is an engagement transmission mechanism, engagement transmission mechanism comprises the worm gear (21) that is located at the piston rod front end and is located at chain saw output shaft spindle nose and worm gear engaged worm (91) that described worm screw is located at the right side of worm gear.
3. a kind of chain saw oil pump according to claim 1, it is characterized in that: described rotary steering structure comprises and is located on the piston rod around the annular groove (22) of piston rod outer surface and is fixed in guide way (3) on the pump housing, guide way is provided with one and stretches into the protrusion piece (31) that cooperates with annular groove in the annular groove, the relative piston rod axis in plane, annular groove place tilts, and the distance of annular groove between piston rod axis upslide shadow two ends is not more than the stroke of piston rod.
4. a kind of chain saw oil pump according to claim 3 is characterized in that: described piston rod is provided with and piston rod interference fit stationary sleeve (4), and annular groove is located on the outside wall surface of sleeve.
5. a kind of chain saw oil pump according to claim 1, it is characterized in that: be provided with piston bush (5) in the described pump housing, piston bush and pump housing interference fit, oil-in and oil-out all are communicated with the piston bush inner chamber, and piston rod cooperates the relative pump housing to make horizontal reciprocating movement with the piston bush internal chamber wall.
6. a kind of chain saw oil pump according to claim 5, it is characterized in that: the front end of described piston bush stretches out the pump housing, described guide way is located at the front end of piston bush, be provided with positioning convex (13) at pump housing outer surface, be buckled on the positioning convex guide way is located being provided with the clasp (32) that extends back on the guide way.
7. a kind of chain saw oil pump according to claim 1, it is characterized in that: described position adjustment structure comprises reference column I (81) and the reference column II (82) that is located on the chain saw gripper shoe, also comprise the switching ring body (14) that is located at pump housing right side and be located at the spacing ring body (15) in pump housing left side, spacing ring body is provided with waist hole (16), reference column I is located at pump housing right side and the switching of switching ring body, reference column II is located at pump housing left side and passes from the waist hole, the waist hole length is greater than the diameter on reference column II top, described elasticity means for correcting comprises the torsion spring (6) that is located on the reference column I, and the head of torsion spring (61) is walked around rear side that the pump housing is against spacing ring body, and the pump housing is kept with reference column I is the trend that the center clockwise rotates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200323940U CN201998236U (en) | 2011-01-29 | 2011-01-29 | Oil pump for chain saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200323940U CN201998236U (en) | 2011-01-29 | 2011-01-29 | Oil pump for chain saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201998236U true CN201998236U (en) | 2011-10-05 |
Family
ID=44701008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200323940U Expired - Fee Related CN201998236U (en) | 2011-01-29 | 2011-01-29 | Oil pump for chain saw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201998236U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105371087A (en) * | 2014-08-12 | 2016-03-02 | 株式会社牧田 | Oil pump |
| CN105402581A (en) * | 2015-12-17 | 2016-03-16 | 苏州金莱克精密机械有限公司 | Oil pump assembly of pole saw |
| CN110449659A (en) * | 2019-07-22 | 2019-11-15 | 浙江亚特电器有限公司 | A kind of the oil pump position adjustment structure and chain saw of chain saw |
| CN110566448A (en) * | 2019-07-22 | 2019-12-13 | 浙江亚特电器有限公司 | oil quantity adjustable oil pump structure for chain saw and chain saw |
-
2011
- 2011-01-29 CN CN2011200323940U patent/CN201998236U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105371087A (en) * | 2014-08-12 | 2016-03-02 | 株式会社牧田 | Oil pump |
| CN105371087B (en) * | 2014-08-12 | 2018-04-03 | 株式会社牧田 | Oil pump |
| CN105402581A (en) * | 2015-12-17 | 2016-03-16 | 苏州金莱克精密机械有限公司 | Oil pump assembly of pole saw |
| CN110449659A (en) * | 2019-07-22 | 2019-11-15 | 浙江亚特电器有限公司 | A kind of the oil pump position adjustment structure and chain saw of chain saw |
| CN110566448A (en) * | 2019-07-22 | 2019-12-13 | 浙江亚特电器有限公司 | oil quantity adjustable oil pump structure for chain saw and chain saw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111005 Termination date: 20140129 |