[ Invention ]
The invention aims to solve the technical problem of overcoming the defects of the prior art and providing an oil pump position adjusting structure of a chain saw and the chain saw, wherein the oil pump position adjusting structure is more convenient and labor-saving to refit.
The technical problems are solved, and the invention adopts the following technical scheme:
The utility model provides an oil pump position control structure of chain saw, which comprises a housing, the output shaft, the oil pump, support and reference column, be provided with turbine tooth on the oil pump, the oil pump is installed on the support, the output shaft is installed on the casing, one of casing and support is provided with meshing hole and separating hole, another is provided with the locating hole, the support activity sets up on the casing, so that the locating hole removes between meshing hole and separating hole, the reference column locks the relative position of support and casing, when meshing hole and locating hole are aligned, turbine tooth and output shaft meshing, when separating hole and locating hole are aligned, turbine tooth and output shaft meshing separation.
The beneficial effects of the invention are as follows:
The relative states between the meshing hole and the separating hole and the positioning hole are changed by adjusting the position of the bracket on the shell, and the meshing state of the turbine teeth and the output shaft is changed. Under the condition that the positioning hole is aligned with the meshing hole, the turbine teeth and the output shaft are in a meshing state, the oil pump can convey lubricating oil, and the positioning column is simultaneously inserted into the positioning hole and the meshing hole at the moment, so that the effect of locking the turbine teeth and the output shaft is achieved. Under the condition of refitting the chain saw, the positioning column is pulled out of the positioning hole and the meshing hole, so that the shell and the support are in a state of relatively moving, the support is moved, the positioning hole and the meshing hole are offset, corresponding vortex teeth and the output shaft are staggered, and the oil pump can stop oil transportation. And when the positioning hole and the separating hole are aligned, the positioning column is inserted into the positioning hole and the separating hole at the same time, so that the separation state of the turbine teeth and the output shaft is locked. At the moment, the chain saw can be refitted under the condition that the oil pump is not dismantled, the refitting process is time-saving and labor-saving, and the refitting can be realized only by operating the positioning column and the support. And the whole refitting process is reversible.
According to the invention, the side wall of the shell is convexly formed into a first screw column, the side wall of the bracket is convexly formed into a second screw column, the second screw column is sleeved on the first screw column, and the bracket is rotatably arranged on the shell through the second screw column and the first screw column.
The end wall of the second screw column is provided with a rotating groove for inserting a straight spanner.
The shell is provided with the limiting rib for limiting the rotation range of the bracket, and when the shell is propped against the limiting rib, the meshing hole or the separating hole is aligned with the positioning hole.
The oil pump position adjusting structure further comprises a housing, the housing covers the outer sides of the oil pump, the engagement hole and the separation hole, and the end part of the second screw column and the end part of the positioning column are exposed out of the housing.
The side wall of the shell is concaved inwards to form a bracket movable groove, the oil pump is positioned in the bracket movable groove, and the shell is spliced with the edge of the notch of the bracket movable groove.
A limiting ring is arranged in the middle of the positioning column, a locking spring is arranged between the limiting ring and the housing, the locking spring is sleeved on the positioning column, and the locking spring is positioned outside the positioning hole, the meshing hole and the separation hole.
The end part of the positioning column, which is positioned outside the housing, is provided with a control button.
A chain saw includes an oil pump position adjustment mechanism.
The oil pump is connected with an oil pipe, and the oil pipe penetrates through the side wall of the shell.
Other features and advantages of the present invention will be disclosed in the following detailed description of the invention and the accompanying drawings.
[ Detailed description ] of the invention
The technical solutions of the embodiments of the present invention will be explained and illustrated below with reference to the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the examples in the implementation manner, other examples obtained by a person skilled in the art without making creative efforts fall within the protection scope of the present invention.
In the following description, directional or positional relationships such as the terms "inner", "outer", "upper", "lower", "left", "right", etc., are presented for convenience in describing the embodiments and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.
Examples:
referring to fig. 1 to 7, the present embodiment provides an oil pump position adjusting structure of a chain saw, including a housing 1, an output shaft 2, an oil pump 3, a bracket 4, and a positioning column 6.
The side wall of the oil pump 3 is provided with two connecting pipes, two oil pipes 18 are respectively sleeved on the two connecting pipes, a turbine and turbine teeth 5 are arranged on the oil pump 3, the turbine teeth 5 are driven to rotate under the condition of rotating so that the oil pump 3 can lead lubricating oil into the two oil pipes 18, and the conveying of the lubricating oil in the two oil pipes 18 is stopped under the condition that the turbine teeth 5 stop rotating.
The output shaft 2 can drive the turbine teeth 5 to rotate under the condition that the turbine teeth 5 are meshed with the output shaft 2, and the turbine teeth 5 stop rotating under the condition that the output shaft 2 is separated from the turbine teeth 5. The present embodiment adjusts the relative position state between the output shaft 2 and the turbine teeth 5 by controlling the relative position state before and after retrofitting the chain saw without dismantling the oil pump 3.
Wherein the oil pump 3 is installed on the support 4, and support 4 activity sets up on casing 1, and output shaft 2 is installed on casing 1, and corresponding support 4 is in the activity in-process on casing 1, and the relative position between the turbine teeth 5 that are located on the oil pump 3 and the output shaft 2 that are located on casing 1 can change. In addition, the oil pipe 18 penetrates through the side wall of the casing 1, the oil pipe 18 has certain elasticity, and when the support 4 moves, the oil pipe 18 can deform to match the movement of the support 4 on the casing 1.
Since the relative positions between the turbine teeth 5 and the output shaft 2 need to be fixed before and after retrofitting, an engagement hole 7 and a separation hole 8 are provided in one of the casing 1 and the bracket 4, and a positioning hole 9 is provided in the other. For example, in the present embodiment, the engaging hole 7 and the disengaging hole 8 are provided at the same time on the bracket 4, and the positioning hole 9 is provided on the casing 1. With the positioning hole 9 and the engagement hole 7 aligned, the relative position between the casing 1 and the bracket 4 causes the turbine tooth 5 to engage with the output shaft 2, while the positioning post 6 is simultaneously inserted into the positioning hole 9 and the engagement hole 7, so that the relative position between the casing 1 and the bracket 4 is locked in a state in which the turbine tooth 5 is engaged with the output shaft 2. Under the condition that the positioning hole 9 and the separating hole 8 are aligned, the turbine teeth 5 are separated from the output shaft 2 by the relative position between the casing 1 and the bracket 4, and meanwhile, the positioning column 6 is simultaneously inserted into the positioning hole 9 and the separating hole 8, so that the relative position between the casing 1 and the bracket 4 is locked in a state that the turbine teeth 5 are separated from the output shaft 2. The movable range of the bracket 4 on the housing 1 should be such that the positioning hole 9 moves between the engagement hole 7 and the separation hole 8 in the case where the positioning column 6 is pulled out.
Before the chain saw is refitted, the positioning hole 9 and the engagement hole 7 are aligned, and the turbine teeth 5 are engaged with the output shaft 2 by means of the positioning column 6 to enable the oil pump 3 to convey lubricating oil. After retrofitting the chainsaw, the positioning hole 9 and the separating hole 8 are aligned, and the turbine teeth 5 are separated from the output shaft 2 by means of the positioning post 6 locking, so that the oil pump 3 stops delivering lubricating oil. Reversible modification of the chain saw is realized through reversible movement of the positioning hole 9 between the meshing hole 7 and the separation hole 8, time and labor are saved in the modification process, and the reversible modification can be realized only by operating the positioning column 6 and the bracket 4.
In order to limit the moving path of the bracket 4 on the casing 1, the side wall of the casing 1 is protruded to form a first screw column 10, the side wall of the bracket 4 is protruded to form a second screw column 12, the second screw column 12 is sleeved on the first screw column 10 and is compressed by a screw, so that the second screw column 12 can rotate around the first screw column 10, thereby enabling the bracket 4 to rotate on the casing 1 by taking the first screw column 10 and the second screw column 12 as rotation centers, and simultaneously enabling the turbine teeth 5 on the oil pump 3 to rotate around the first screw column 10 and the second screw column 12.
In order to facilitate the rotation of the bracket 4, the end wall of the second screw column 12 is provided with a rotation groove 11 for the insertion of a straight spanner, when the bracket 4 needs to be rotated, the positioning column 6 is pulled out, and the straight spanner is clamped into the rotation groove 11, so that the straight spanner drives the second screw column 12 to rotate around the first screw column 10.
In addition, the casing 1 is provided with two limiting ribs 13 for limiting the rotation range of the support 4, and in this embodiment, the rotation range of the corresponding support 4 on the casing 1 is limited between the two limiting ribs 13. When the bracket 4 collides with one of the limit ribs 13, the engagement hole 7 is aligned with the positioning hole 9, and when the bracket 4 collides with the other limit rib 13, the separation hole 8 is aligned with the positioning hole 9. The engagement hole 7 or the separation hole 8 can be aligned with the positioning hole 9 through the limiting rib 13, so that the plugging and locking of the positioning column 6 are facilitated.
In order to protect the oil pump 3, the oil pump position adjustment structure further includes a housing 14, the housing 14 covering the outside of the oil pump 3, the engagement hole 7, and the separation hole 8. Since the engagement hole 7 and the separation hole 8 provided on the bracket 4 are shielded by the housing 14, the rotation groove 11 provided on the second screw post 12 and the end of the positioning post 6 are exposed outside the housing 14 in order to be able to control the bracket 4 and the positioning post 6. Meanwhile, due to the existence of the limit ribs 13, even if the engagement hole 7 and the separation hole 8 are shielded by the housing 14, the alignment between the engagement hole 7 or the separation hole 8 and the positioning hole 9 is not affected.
The side wall of the shell 1 is concaved inwards to form a support movable groove, the limiting rib 13, the oil pump 3, the meshing hole 7 and the separating hole 8 are all positioned in the support movable groove, the cover 14 is spliced with the edge of the notch of the support movable groove, and the part of the shell 1 positioned at the edge of the support movable groove is spliced with the cover 14 to form a plane approximately, so that the volume of the chain saw is saved.
In order to ensure that the positioning column 6 cannot be separated from the positioning hole 9 and the meshing hole 7 before the chain saw is refitted, the positioning column 6 cannot be separated from the positioning hole 9 and the separation hole 8 after the chain saw is refitted, a limiting ring 16 is arranged in the middle of the positioning column 6, the limiting ring 16 and the positioning column 6 are coaxially arranged, the limiting ring 16 is positioned on one side of the support 4 far away from the positioning hole 9, a locking spring 15 is arranged between the limiting ring 16 and the housing 14, and the locking spring 15 is sleeved on the positioning column 6. In the extension and retraction direction of the lock spring 15, the housing 14, the lock spring 15, the retainer ring 16, the separation hole 8 (or the engagement hole 7), and the positioning hole 9 are provided in this order.
In other embodiments, the housing 14, the locking spring 15 and the stop collar 16 may be located on the other side of the positioning hole 9, so long as it is ensured that the locking spring 15 and the stop collar 16 do not enter the separation hole 8, the engagement hole 7 and the positioning hole 9, so as to avoid unnecessary interference of the locking spring 15 and the stop collar 16 on the locking effect of the positioning column 6.
The two ends of the locking spring 15 are respectively propped between the inner wall of the housing 14 and the limiting ring 16, the locking spring 15 is extruded, and the limiting ring 16 is pressed on the outer edge of the engagement hole 7 or the outer edge of the separation hole 8. The positioning column 6 is thus maintained in a locked state by the locking spring 15. The positioning column 6 is pulled out towards the direction far away from the positioning hole 9, the limiting ring 16 can further compress the locking spring 15, and meanwhile the positioning column 6 is driven to leave the positioning hole 9, so that unlocking between the machine shell 1 and the bracket 4 is completed, and the second screw column 12 can rotate.
The portion of the positioning column 6 extending outside the housing 14 has a limited length, and in order to facilitate the pulling out of the positioning column 6 to the outside of the housing 14, the end of the positioning column 6 located outside the housing 14 is provided with a control knob 17.
While the invention has been described in terms of embodiments, it will be appreciated by those skilled in the art that the invention is not limited thereto but rather includes the drawings and the description of the embodiments above. Any modifications which do not depart from the functional and structural principles of the present invention are intended to be included within the scope of the appended claims.