CN219101981U - Structure for eliminating gear-rack meshing gap in gear-rack transmission - Google Patents
Structure for eliminating gear-rack meshing gap in gear-rack transmission Download PDFInfo
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- CN219101981U CN219101981U CN202222193960.7U CN202222193960U CN219101981U CN 219101981 U CN219101981 U CN 219101981U CN 202222193960 U CN202222193960 U CN 202222193960U CN 219101981 U CN219101981 U CN 219101981U
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Abstract
The utility model relates to the technical field of transmission equipment, in particular to a structure for eliminating meshing gaps between gears and racks in gear and rack transmission, which comprises a conveying frame, wherein rack guide rail fixing plates are fixed on two sides of the top end of the outer wall of the conveying frame, the top end of the outer wall of each rack guide rail fixing plate is connected with a moving plate in a sliding manner, the structure also comprises a moving part for driving the moving plate to move, and the moving part is arranged at the front end of the outer wall of the moving plate and is used for connecting the moving part with the moving plate.
Description
Technical Field
The utility model relates to the technical field of transmission equipment, in particular to a structure for eliminating meshing gaps of racks and pinions in rack and pinion transmission.
Background
In the profile machining process, a worker usually utilizes the conveying frame to transport the profile, the specific mode is that the outer wall of one side of the profile is clamped through the clamping device on the conveying frame, then the clamping device is enabled to move at the top end of the outer wall of the conveying frame through the driving device, and then the profile can be driven to move on the conveying frame, most of driving devices on the existing conveying frame are used for starting a driving motor fixedly connected with the clamping device to drive a gear to rotate, the gear is meshed with a rack fixedly arranged on the outer wall of the conveying frame to move the clamping device (specific reference to an attached drawing 1 of the specification), and accordingly the profile can be moved.
In the prior art, in order to realize stable engagement of the gear and the rack, the rack is usually required to be kept horizontal during installation, however, because of factors of installation technology and technology, the existing rack cannot be kept completely horizontal during installation, the rack has a certain protruding state or a certain concave state more or less relative to an installation horizontal line during installation, when the gear moves to a concave position of the rack, a certain gap exists when the outer wall of the gear is engaged with teeth on the rack, the existing gap can influence the transmission of the gear and the rack, and the slipping of the gear and the rack can occur when serious, so that the whole driving device is influenced.
In summary, it is necessary to provide a structure for eliminating the meshing gap between the rack and the pinion in the rack and pinion transmission.
Disclosure of Invention
Therefore, the utility model provides a structure for eliminating meshing gaps between a gear and a rack in gear-rack transmission, which aims to solve the problem that when the gear moves to a concave position of the rack, a certain gap exists when the outer wall of the gear is meshed with teeth on the rack, the existing gap can influence the transmission of the gear and the rack, and the situation that the gear and the rack slide can occur when the existing gap is serious, so that the whole driving device is influenced.
In order to achieve the above object, the present utility model provides the following technical solutions: the utility model provides an eliminate gear rack meshing clearance's structure in rack and pinion transmission, includes the carriage, the outer wall top both sides of carriage all are fixed with rack guide fixed plate, rack guide fixed plate's outer wall top sliding connection has the movable plate, still includes:
the moving part is used for driving the moving plate to move and is arranged at the front end of the outer wall of the moving plate; and a mounting member for connecting the moving member with the moving plate, the mounting member being disposed between the moving member and a front end of an outer wall of the moving plate.
Preferably, the two sides of the top end of the outer wall of the movable plate are fixedly provided with the portal frames, and the centers of the two sides of the outer wall of the two groups of portal frames are fixedly provided with the clamping mechanisms.
Preferably, the moving part comprises a servo motor, a speed reducer is connected to the bottom end of the outer wall of the servo motor through an output shaft, and a transmission gear is fixed to the bottom end of the outer wall of the speed reducer through a transmission shaft.
Preferably, the top end of the outer wall of the rack guide rail fixing plate is fixed with a transmission rack, the tooth of the transmission rack faces to the transmission gear, and the outer wall of the transmission gear is meshed with the transmission rack.
Preferably, the mounting component comprises a supporting plate, the bottom end of the outer wall of the speed reducer is fixedly connected with the top end of the outer wall of the supporting plate, and the transmission gear is arranged below the bottom end of the outer wall of the supporting plate.
Preferably, an installation riser a is fixed on the outer wall of one side of the supporting plate, which is close to the moving plate, an installation riser b is arranged on the outer wall of one side of the installation riser a, which is close to the moving plate, and is fixedly connected with the front end of the outer wall of the moving plate, and a rotating shaft is fixed on the left end of the outer surface of one side of the installation riser b, which is close to the installation riser a.
Preferably, the upper end and the lower end of the outer wall of the rotating shaft are rotationally connected with rotating seats, the rotating seats are arranged on the upper side and the lower side of the outer wall of the installation riser b, and one end, far away from the installation riser b, of each rotating seat is fixedly connected with the left end of the outer wall of one side, close to the installation riser b, of the installation riser a.
Preferably, the outer wall of one side opposite to the installation riser a and the installation riser b is provided with an elastomer which is in a compressed state, and the two ends of the elastomer are respectively connected with the right ends of the outer walls of one side opposite to the installation riser a and the installation riser b
Preferably, the elasticity is a compression spring.
The beneficial effects of the utility model are as follows:
according to the utility model, the installation vertical plate a can rotate by taking the joint of the rotating shaft and the rotating seat as the center through the elastic body, so that when the transmission gear moves to the concave position or the convex position of the transmission rack, the outer wall of the transmission gear and the outer wall of the transmission rack can always keep a stable meshing state, and the gap at the meshing position of the transmission gear and the transmission rack is avoided, thereby solving the problem that the existing gap in the background technology can influence the transmission of the gear and the rack, and the slipping of the gear and the rack can occur when serious, and further the influence on the whole driving device can be caused.
Drawings
FIG. 1 is a schematic view of a part of a carriage of the present utility model in perspective;
FIG. 2 is a schematic view of a part of a three-dimensional structure of a moving part in a side view direction;
FIG. 3 is an enlarged schematic view of the structure of FIG. 1A according to the present utility model;
FIG. 4 is a schematic view of a part of a moving part of the present utility model;
fig. 5 is a schematic view of a part of a perspective structure of a mounting member of the present utility model in a side view.
In the figure: 100. a carriage; 110. a rack guide fixing plate; 200. a drive rack; 300. a moving plate; 310. a portal frame; 320. a clamping mechanism; 400. a servo motor; 410. a speed reducer; 420. a transmission gear; 430. a support plate; 440. installing a vertical plate a; 450. installing a vertical plate b; 451. a compression spring; 452. a rotating shaft; 453. and a rotating seat.
Detailed Description
The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.
Referring to fig. 1-5, the structure for eliminating meshing gap between gears and racks in gear and rack transmission provided by the utility model comprises a conveying frame 100, rack guide rail fixing plates 110 are fixed at both sides of the top end of the outer wall of the conveying frame 100, a moving plate 300 is slidably connected to the top end of the outer wall of the rack guide rail fixing plates 110, the moving plate 300 is arranged for supporting the bottom end of the outer wall of a transported profile, two gantry frames 310 are fixed at both sides of the top end of the outer wall of the moving plate 300, clamping mechanisms 320 are fixed at both sides of the outer wall of the two groups of gantry frames 310, the arranged gantry frames 310 are used for mounting and fixing the clamping mechanisms 320, the clamping mechanisms 320 comprise air cylinders and air control clamping blocks, the air cylinders can push the air control clamping blocks to move through push rods arranged on the air cylinders, so as to clamp and fix the outer wall of the profile placed on the moving plate 300, the moving part is arranged at the front end of the outer wall of the moving plate 300, the moving part comprises a servo motor 400, the bottom end of the outer wall of the servo motor 400 is connected with a speed reducer 410, the bottom end of the outer wall of the servo motor 400 is arranged at the bottom end of the outer wall of the moving plate 300, the outer wall of the servo motor 400 is fixedly connected with a gear and is fixedly meshed with a gear and a rack 420 through a gear 420, the gear 420 is fixedly meshed with the gear 420, and a gear 420 is fixedly meshed with the gear 420 of the gear 200, and a gear is fixedly arranged at the top end of the gear 420 is meshed with the gear 200, and a gear 420 is fixedly arranged at the top end of the gear 200, and a gear is meshed with the gear 420, which is a gear 200 is rotatably is meshed with the gear 200, the transmission gear 420 is arranged to drive the movable plate 300 to move when being meshed with the transmission rack 200 to rotate, and in order to enable the movable plate 300 to move more stably, limit sliding blocks are fixed on two sides of the bottom end of the outer wall of the movable plate 300, limit sliding bars are fixed on the top end of the outer wall of the conveying frame 100 at the joint of the limit sliding blocks, and the limit sliding blocks can be connected with the outer wall of the limit sliding bars in a sliding manner through sliding grooves formed in the outer wall;
the installation component is used for connecting the moving component and the moving plate 300, the installation component is arranged between the moving component and the front end of the outer wall of the moving plate 300, the installation component comprises a supporting plate 430, the bottom end of the outer wall of the speed reducer 410 is fixedly connected with the top end of the outer wall of the supporting plate 430, the arranged supporting plate 430 can support the bottom end of the outer wall of the speed reducer 410, meanwhile, the supporting plate 430 is fixedly connected with the front end of the outer wall of an installation riser a440, a transmission gear 420 is arranged below the bottom end of the outer wall of the supporting plate 430, the installation riser a440 is fixedly arranged on one side outer wall of the supporting plate 430, the installation riser b450 is fixedly connected with the front end of the outer wall of the moving plate 300, which is close to the moving plate 300, of the installation riser b450 is fixedly connected with a rotating shaft 452, an arc groove is formed in the front end of the outer wall of the installation riser b450, and the outer wall of the designed rotating shaft 452 is fixedly connected with the inner wall of the arc groove;
the upper and lower ends of the outer wall of the rotating shaft 452 are rotatably connected with rotating seats 453, the rotating seats 453 are arranged on the upper and lower sides of the outer wall of the mounting riser b450, bearings are embedded on the upper and lower ends of the inner wall of the rotating seats 453, the upper and lower ends of the arranged rotating shaft 452 are fixedly connected with the inner ring wall of the bearings, one end of the rotating seat 453, which is far away from the mounting riser b450, is fixedly connected with the left end of the outer wall of one side, which is close to the mounting riser b450, of the mounting riser a440, an elastomer is arranged on the outer wall of the side, which is opposite to the mounting riser b450, the elastomer is in a compressed state, two ends of the elastomer are fixedly connected with the right ends of the outer wall, which is opposite to the mounting riser a440 and the mounting riser b450, the elastomer is preferably a compression spring 451, the compressed compression spring 451 enables the mounting riser a440 and the mounting riser b450 to expand towards two sides by taking the rotating shaft 452 and the rotating seats 453 as centers, the installation riser b450 is fixedly connected with the front end of the outer wall of the moving plate 300, so that the compression spring 451 only enables the installation riser a440 to open outwards, and the installation riser a440 can always engage with the transmission rack 200 through the supporting plate 430, namely, when the transmission gear 420 moves to the position where the transmission rack 200 is located at the concave position, the generated elastic force of the compression spring 451 also enables the transmission gear 420 to engage with the outer wall of the transmission rack 200, and further, the occurrence of a gap between the transmission gear 420 and the transmission rack 200 can be avoided, and the material of the compression spring 451 is preferably any one of silicon-manganese spring steel wire, carbon spring steel wire and hot-rolled spring steel.
The application process of the utility model is as follows: firstly, a worker firstly places one end of a section bar on the top end of the outer wall of a movable plate 300, then clamps and fixes the outer wall of the section bar through an air cylinder and an air control clamping block on a clamping mechanism 320, after the fixing is completed, the worker can electrify a servo motor 400 to drive a transmission gear 420 to rotate through a speed reducer 410, the transmission gear 420 can move on the top end of the outer wall of a conveying frame 100 through the meshing action between the transmission gear 420 and the transmission rack 200 during rotation, and meanwhile, a supporting plate 430 is arranged to pull the movable plate 300 to move together through a mounting vertical plate a440 and a mounting vertical plate b450, so that the movable plate 300 can drive the section bar to move together, and the conveying work of the section bar is completed;
if the transmission gear 420 moves to the position where the transmission gear 200 is concave inwards in the process of meshing movement with the transmission gear 200, the compression spring 451 can make the installation riser a440 rotate outwards by taking the rotation seat 453 and the rotation shaft 452 as the center through elastic acting force, the installation riser a440 can make the transmission gear 420 move towards the position where the transmission gear 200 is concave through the support plate 430 when rotating, so that the outer wall of the transmission gear 420 can always keep a meshing state with the transmission gear 200, the occurrence of gaps is avoided, and meanwhile, when the transmission gear 420 moves to the position where the transmission gear 200 is convex outwards, the installation riser a440 can be extruded through the support plate 430, so that the installation riser a440 rotates towards the direction of the installation riser b450, and thus the installation of the transmission gear 420 and the outer wall of the transmission gear 200 can still be enabled to be meshed stably, and the influence of the installation of the transmission gear 200 on the meshing transmission gear 420 and the transmission gear 200 can be avoided.
The above description is of the preferred embodiments of the present utility model, and any person skilled in the art may modify the present utility model or make modifications to the present utility model with the technical solutions described above. Therefore, any simple modification or equivalent made according to the technical solution of the present utility model falls within the scope of the protection claimed by the present utility model.
Claims (9)
1. The utility model provides an eliminate gear rack meshing clearance's structure in rack and pinion transmission, includes carriage (100), the outer wall top both sides of carriage (100) all are fixed with rack guide fixed plate (110), the outer wall top sliding connection of rack guide fixed plate (110) has movable plate (300), its characterized in that: further comprises:
a moving member for driving the moving plate (300) to move, the moving member being provided at a front end of an outer wall of the moving plate (300);
and a mounting member for connecting the moving member with the moving plate (300), the mounting member being provided between the moving member and the front end of the outer wall of the moving plate (300).
2. The structure for eliminating a rack and pinion meshing gap in a rack and pinion transmission according to claim 1, wherein: portal frames (310) are fixed on two sides of the top end of the outer wall of the moving plate (300), and clamping mechanisms (320) are fixed on the centers of two sides of the outer wall of each of the two groups of the portal frames (310).
3. The structure for eliminating a rack and pinion meshing gap in a rack and pinion transmission according to claim 1, wherein: the movable part comprises a servo motor (400), a speed reducer (410) is connected to the bottom end of the outer wall of the servo motor (400) through an output shaft, and a transmission gear (420) is fixed to the bottom end of the outer wall of the speed reducer (410) through a transmission shaft.
4. A structure for eliminating a rack and pinion meshing gap in a rack and pinion transmission according to claim 3, characterized in that: the top end of the outer wall of the rack guide rail fixing plate (110) is fixedly provided with a transmission rack (200), the tooth opening direction of the transmission rack (200) faces to a transmission gear (420), and the outer wall of the transmission gear (420) is meshed with the transmission rack (200).
5. A structure for eliminating a rack and pinion meshing gap in a rack and pinion transmission according to claim 3, characterized in that: the installation component includes backup pad (430), outer wall bottom all with outer wall top fixed connection of backup pad (430) of speed reducer (410), drive gear (420) set up in the outer wall bottom below of backup pad (430).
6. The structure for eliminating a rack and pinion meshing gap in a rack and pinion transmission according to claim 5, wherein: the utility model discloses a movable plate, including backup pad (430), installation riser a (440) are fixed with to backup pad (430) be close to one side outer wall of movable plate (300), one side outer wall that installation riser a (440) are close to movable plate (300) is provided with installation riser b (450), one side outer wall that installation riser b (450) are close to movable plate (300) and the outer wall front end fixed connection of movable plate (300), one side outward appearance left end that installation riser b (450) are close to installation riser a (440) is fixed with pivot (452).
7. The structure for eliminating a rack and pinion meshing gap in a rack and pinion transmission according to claim 6, wherein: the outer wall upper and lower ends rotation of pivot (452) are connected with rotation seat (453), rotation seat (453) set up the outer wall upper and lower side at installation riser b (450), the one end that installation riser b (450) was kept away from to rotation seat (453) all is close to one side outer wall left end fixed connection of installation riser b (450) with installation riser a (440).
8. The structure for eliminating a rack and pinion meshing gap in a rack and pinion transmission according to claim 7, wherein: the outer wall of one side opposite to the installation riser a (440) and the installation riser b (450) is provided with an elastomer, the elastomer is in a compressed state, and the two ends of the elastomer are fixedly connected with the right ends of the outer wall of one side opposite to the installation riser a (440) and the installation riser b (450) respectively.
9. The structure for eliminating a rack and pinion meshing gap in a rack and pinion transmission according to claim 8, wherein: the elastomer is a compression spring (451).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222193960.7U CN219101981U (en) | 2022-08-20 | 2022-08-20 | Structure for eliminating gear-rack meshing gap in gear-rack transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222193960.7U CN219101981U (en) | 2022-08-20 | 2022-08-20 | Structure for eliminating gear-rack meshing gap in gear-rack transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219101981U true CN219101981U (en) | 2023-05-30 |
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ID=86461015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222193960.7U Active CN219101981U (en) | 2022-08-20 | 2022-08-20 | Structure for eliminating gear-rack meshing gap in gear-rack transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219101981U (en) |
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2022
- 2022-08-20 CN CN202222193960.7U patent/CN219101981U/en active Active
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