CN217271724U - Rack power transmission mechanism - Google Patents
Rack power transmission mechanism Download PDFInfo
- Publication number
- CN217271724U CN217271724U CN202220238828.0U CN202220238828U CN217271724U CN 217271724 U CN217271724 U CN 217271724U CN 202220238828 U CN202220238828 U CN 202220238828U CN 217271724 U CN217271724 U CN 217271724U
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- rack
- gear
- power transmission
- adjusting nut
- bolt
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Abstract
The utility model discloses a rack power transmission mechanism relates to the power transmission field. The technical scheme comprises the following steps: the mounting panel, the fixed plate that is provided with is fixed to the lateral wall of mounting panel, rotates through the rotation axis on the fixed plate and is provided with the fly leaf, and the fly leaf rotates on the fixed plate, has frictional force between fixed plate and the fly leaf. The utility model discloses, running clearance adjusting nut can transfer the clearance between gear and the rack to minimum, alleviate rack and pinion rate of wear, when the gear runs into the card and dies, the rack has huge reaction force to drive gear, at the gap-eliminating spring, the bolt, the clearance adjusting nut, under the cooperation of rotation axis, drive unit can rotate, this reaction force can push the gear open, make the gear break away from the rack, avoid the gear card to die, short when the position of rack, the gap-eliminating spring shrink, impress the gear in the rack, make wheel and rack re-engage, it is incomplete to avoid wheel and rack meshing, the wearing and tearing between the gear and the rack have been alleviateed.
Description
Technical Field
The utility model relates to a power transmission technical field especially relates to a rack power transmission mechanism.
Background
The power transmission refers to transmitting the power of a power device to a working mechanism, and the rack power transmission is one of the commonly used power transmission mechanisms.
The gear and the rack of the rack power transmission mechanism are meshed, the gear is driven to rotate through the driving piece, then the rack is driven to move, rack power transmission is achieved, the fixing mode of the driving unit of the existing rack power transmission mechanism is single, the floating phenomenon exists when the rack is moved in a long distance, the phenomenon that the driving unit is clamped to be in a dead position easily occurs, transmission position deviation occurs, and abrasion of the gear and the rack is serious.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects of single fixing mode, dead deflection of a drive unit card and serious abrasion of a gear and a rack in the prior art and providing a rack power transmission mechanism.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a rack power transmission mechanism, includes the mounting panel, the fixed plate that is provided with of lateral wall of mounting panel, it is provided with the fly leaf to rotate through the rotation axis on the fixed plate, the fixed driving motor that is provided with of top lateral wall of fly leaf, driving motor's output runs through the fly leaf and extends to the below of fly leaf, driving motor's the fixed gear that is provided with of output, it is provided with the bolt to slide on the mounting panel, the surperficial slip of bolt has cup jointed the anti-backlash spring, the bottom screw thread of bolt has cup jointed clearance adjustment nut, clearance adjustment nut's lateral wall and fly leaf contact.
The above technical solution further comprises:
the movable plate rotates on the rotating shaft, a fixing nut is sleeved at the bottom of the side wall of the rotating shaft in a threaded manner, and the side wall at the top end of the fixing nut is in contact with the side wall at the bottom end of the fixing plate.
One end of the anti-backlash spring is fixedly connected with the mounting plate, and the other end, far away from the mounting plate, of the anti-backlash spring is fixedly connected with the top of the bolt.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses in, clearance between gear and rack can be transferred to the minimum to the clearance of running gap adjusting nut, alleviate rack and pinion wearing and tearing speed, when the gear runs into the card when dying, the rack has huge reaction force to drive gear, at the clearance spring that disappears, the bolt, clearance adjusting nut, under the cooperation of rotation axis, drive unit can rotate, this reaction force can push away the gear, make the gear break away from the rack, avoid the gear card to die, the position of rack is short, the clearance spring shrink disappears, impress the gear in the rack, make wheel and rack re-engagement, it is incomplete to avoid wheel and rack meshing, the wearing and tearing between the wheel and the rack have been alleviateed.
2. The utility model discloses in, the fly leaf on rotation axis and fixation nut cooperation with the drive unit is fixed on the fixed plate, makes the drive unit can center on rotation axis rotation, has simplified drive unit's installation procedure, and it is to need dismantle the drive unit, rotates fixation nut, makes fixation nut break away from the rotation axis, takes off the rotation axis, removes the fixed to the drive unit, makes drive unit can fast loading and unloading, has improved the convenience of power transmission mechanism.
Drawings
Fig. 1 is a schematic structural view of a rack power transmission mechanism provided by the present invention;
fig. 2 is a perspective view of a rack power transmission mechanism according to the present invention;
fig. 3 is a rear view of a rack power transmission mechanism according to the present invention;
fig. 4 is a top view of a rack power transmission mechanism according to the present invention;
fig. 5 is a bottom view of the rack power transmission mechanism according to the present invention.
In the figure: 1. mounting a plate; 2. a fixing plate; 3. a rotating shaft; 4. a movable plate; 5. a bolt; 6. a backlash eliminating spring; 7. a clearance adjusting nut; 8. a drive motor; 9. a gear; 10. a rack; 11. and (5) fixing the nut.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings and specific embodiments.
Example one
As shown in fig. 1-5, the utility model provides a rack power transmission mechanism, including mounting panel 1, the fixed plate 2 that is provided with of lateral wall of mounting panel 1, be provided with the fly leaf 4 through rotation axis 3 rotation on the fixed plate 2, the fly leaf 4 rotates on the fixed plate 2, there is frictional force between fixed plate 2 and the fly leaf 4, the top lateral wall of fly leaf 4 is fixed and is provided with driving motor 8, the output of driving motor 8 runs through the fly leaf 4 and extends to the below of fly leaf 4, the fixed gear 9 that is provided with of output of driving motor 8, gear 9 and rack 10 meshing connection;
the mounting plate 1 is provided with a bolt 5 in a sliding mode, the surface of the bolt 5 is sleeved with a gap eliminating spring 6 in a sliding mode, one end of the gap eliminating spring 6 is fixedly connected with the mounting plate 1, the other end, away from the mounting plate 1, of the gap eliminating spring 6 is fixedly connected with the top of the bolt 5, the bottom of the bolt 5 is sleeved with a gap adjusting nut 7 in a threaded mode, the cross section of the gap adjusting nut 7 is hexagonal, the cross section of the gap adjusting nut 7 is a hollow circle, and the side wall of the gap adjusting nut 7 is in contact with the movable plate 4.
In the embodiment, a rack 10 is erected, a gear 9 is meshed with the rack 10, a bolt 5 is held, the bolt 5 is prevented from rotating, a gap adjusting nut 7 is rotated, the gap adjusting nut 7 moves on the bolt 5, the total length of the bolt 5 and the gap adjusting nut 7 is lengthened, the gap adjusting nut 7 extrudes a movable plate 4, an interaction force is generated between the gap adjusting nut 7 and the movable plate 4, the bolt 5 and the gap adjusting nut 7 are driven to integrally move by the reaction force of the movable plate 4 on the gap adjusting nut 7, a gap eliminating spring 6 stretches and accumulates force, and the gap adjusting nut 7 is abutted against the movable plate 4 under the elastic force action of the gap eliminating spring 6;
continuing to rotate the gap adjusting nut 7 to enable the total length of the bolt 5 and the gap adjusting nut 7 to continue to increase, and meanwhile, continuously stretching the anti-backlash spring 6 to accumulate force, the elastic force of the anti-backlash spring 6 is increased more and more, and the extrusion force of the gap adjusting nut 7 on the movable plate 4 is also increased more and more;
when the extrusion force of the gap adjusting nut 7 on the movable plate 4 is enough to overcome the friction force between the fixed plate 2 and the movable plate 4, the gap adjusting nut 7 pushes the movable plate 4, the movable plate 4 rotates, the movable plate 4 is close to the rack 10, the movable plate 4 drives the driving motor 8 to move, the driving motor 8 drives the gear 9 to move, the distance between the gear 9 and the rack 10 is adjusted, the gap between the gear 9 and the rack 10 is adjusted to be minimum, the gear 9 and the rack 10 are almost perfectly meshed, and the stability of power transmission is improved;
when the rack is not normal, when the position of the rack 10 is high, the gear 9 is jacked up, the gear 9 drives the driving motor 8 to move, the driving motor 8 drives the movable plate 4 to move, the movable plate 4 rotates around the rotating shaft 3, the movable plate 4 presses the gap adjusting nut 7, the gap adjusting nut 7 drives the bolt 5 to move, the gap eliminating spring 6 stretches, and the movable plate 4 is prevented from being clamped;
when the position of the rack 10 is short, the gap eliminating spring 6 contracts, the gap eliminating spring 6 drives the bolt 5 to move, the bolt 5 drives the gap adjusting nut 7 to move, the gap adjusting nut 7 extrudes the movable plate 4, the gap adjusting nut 7 drives the movable plate 4 to rotate, the movable plate 4 drives the driving motor 8 to move, the driving motor 8 drives the gear 9 to move, the gear 9 is made to be close to the rack 10, the gear 9 is meshed with the rack 10 again, incomplete meshing of the gear 9 and the rack 10 is avoided, and abrasion between the gear 9 and the rack 10 is reduced.
Example two
As shown in fig. 2 and 5, based on the first embodiment, the bottom of the side wall of the rotating shaft 3 is threadedly sleeved with the fixing nut 11, the top side wall of the fixing nut 11 contacts with the bottom side wall of the fixing plate 2, and the movable plate 4, the driving motor 8 and the gear 9 form a driving unit.
In this embodiment, the movable plate 4 on the driving unit is fixed on the fixed plate 2 by the cooperation of the rotating shaft 3 and the fixing nut 11, so that the driving unit can rotate around the rotating shaft 3, thereby simplifying the installation steps of the driving unit.
The above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, which are designed to be replaced or changed equally, all should be covered within the protection scope of the present invention.
Claims (3)
1. A rack power transmission mechanism comprises a mounting plate (1) and is characterized in that a fixing plate (2) is fixedly arranged on the side wall of the mounting plate (1), a movable plate (4) is rotatably arranged on the fixed plate (2) through a rotating shaft (3), a driving motor (8) is fixedly arranged on the side wall of the top end of the movable plate (4), the output end of the driving motor (8) penetrates through the movable plate (4) and extends to the lower part of the movable plate (4), the output end of the driving motor (8) is fixedly provided with a gear (9), the mounting plate (1) is provided with a bolt (5) in a sliding way, the surface of the bolt (5) is sleeved with a clearance eliminating spring (6) in a sliding way, the bottom of the bolt (5) is sleeved with a clearance adjusting nut (7) in a threaded way, the side wall of the clearance adjusting nut (7) is in contact with the movable plate (4).
2. The rack power transmission mechanism according to claim 1, wherein a fixing nut (11) is screwed onto the bottom of the side wall of the rotating shaft (3), and the side wall of the top end of the fixing nut (11) is in contact with the side wall of the bottom end of the fixing plate (2).
3. The rack power transmission mechanism according to claim 1, wherein one end of the anti-backlash spring (6) is fixedly connected with the mounting plate (1), and the other end of the anti-backlash spring (6) away from the mounting plate (1) is fixedly connected with the top of the bolt (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220238828.0U CN217271724U (en) | 2022-01-28 | 2022-01-28 | Rack power transmission mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220238828.0U CN217271724U (en) | 2022-01-28 | 2022-01-28 | Rack power transmission mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217271724U true CN217271724U (en) | 2022-08-23 |
Family
ID=82903993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220238828.0U Active CN217271724U (en) | 2022-01-28 | 2022-01-28 | Rack power transmission mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217271724U (en) |
-
2022
- 2022-01-28 CN CN202220238828.0U patent/CN217271724U/en active Active
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