CN217355430U - Gap eliminating device for double-gear rack transmission of machine tool - Google Patents
Gap eliminating device for double-gear rack transmission of machine tool Download PDFInfo
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- CN217355430U CN217355430U CN202220212768.5U CN202220212768U CN217355430U CN 217355430 U CN217355430 U CN 217355430U CN 202220212768 U CN202220212768 U CN 202220212768U CN 217355430 U CN217355430 U CN 217355430U
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- machine tool
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- telescopic rod
- gear rack
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 25
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims description 12
- 229920001875 Ebonite Polymers 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 2
- 238000000926 separation method Methods 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000010405 clearance mechanism Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
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Abstract
The utility model provides a clearance eliminating device for double-gear rack transmission of a machine tool, which relates to the technical field of gear racks, and comprises a machine tool body, a driving gear and a toothed chain, wherein the middle position of the inner surface of the machine tool body is detachably connected with a clearance eliminating mechanism, the clearance eliminating mechanism comprises a fixed plate, a telescopic rod, a spring, a connecting curved plate, a rotating shaft and a roller, the fixed plate is detachably connected with the upper end position of the inner surface of the machine tool body, the telescopic rod is detachably connected with the lower end position of the inner surface of the fixed plate, the spring is slidably connected with the outer surface of the telescopic rod, the connecting curved plate is fixedly connected with the outer surface of the lower end of the telescopic rod, and is arranged on the inner wrapping surface of the machine tool body through the fixed plate, the utility model can conveniently continuously attach the toothed chain with the driving gear with the expanded length through the cooperation between the telescopic rod and the spring, and eliminate the phenomenon of separation between the wear and the toothed chain caused by overlong use time of the gear, the machine tool body can be normally used, and the integrity of a mechanical structure is protected.
Description
Technical Field
The utility model relates to a rack and pinion technical field especially relates to a be used for lathe double gear rack transmission to use anti-backlash device.
Background
Because the contact clearance is generated due to the abrasion between the wheel teeth, the actual stroke is different from the driving stroke, and the actual stroke is the difference value between the driving stroke and the abrasion clearance.
In the prior art, when the machine tool is used for long-distance transmission, the purpose of eliminating the clearance or reducing the clearance degree is achieved by increasing the contact area or the contact pressure between the gear and the rack.
However, in the prior art, the gear rack for the lathe is worn along with the increase of the service time during transmission, so that the purpose of eliminating the clearance or reducing the clearance degree is not achieved, errors occur in the machined parts of the machine tool, and the parts are damaged.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the shortcoming that exists among the prior art, the lathe gear can produce wearing and tearing because the live time overlength, and the part that can make machine tool machining out of wearing and tearing if not carrying out corresponding processing produces the error, leads to the part to be useless.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a backlash eliminating device for double-gear rack transmission of a machine tool comprises a machine tool body, a driving gear and a toothed chain, wherein the middle position of the inner surface of the machine tool body is detachably connected with a backlash eliminating mechanism;
clearance eliminating mechanism includes fixed plate, telescopic link, spring, connection bent plate, pivot and gyro wheel, and the fixed plate can be dismantled and connect in lathe body internal surface upper end position, and the telescopic link can be dismantled and connect in fixed plate internal surface lower extreme position, and spring sliding connection is in the telescopic link surface, connects bent plate fixed connection in the lower extreme surface of telescopic link, and pivot fixed connection is in both ends internal surface intermediate position around connecting the bent plate, and gyro wheel rotatable coupling is in the pivot surface, sets up in lathe body endocyst surface through the fixed plate, the tooth chain rotates to be connected and gyro wheel surface lower extreme position, the driving gear rotates to be connected and tooth chain internal surface left and right sides position.
As a preferred embodiment, a transmission gear is fixedly connected to the outer surface of the rear end of the driving gear, and a rack is slidably connected to the upper end of the outer surface of the transmission gear.
As a preferred embodiment, the outer surface of the upper end of the telescopic rod is detachably connected with a connecting rod, and the outer surface of the upper end of the connecting rod is fixedly connected with a telescopic shaft.
In a preferred embodiment, a clamping shaft is fixedly connected to the upper end of the outer surface of the connecting rod, and the clamping shaft is made of hard rubber.
As a preferred embodiment, the inner surface of the fixing plate is provided with a clamping groove matched with the clamping shaft, and the clamping shaft is in a circular ring shape.
As a preferred embodiment, the outer surface of the front end of the machine tool body is detachably connected with a sealing cover plate, the position of the sealing cover plate corresponds to that of the fixing plate, and the upper end of the outer surface of the rear end of the sealing cover plate is uniformly and fixedly connected with an inserted rod.
As a preferred embodiment, the outer surface of the lower end of the fixing plate is slidably connected with four balance shafts, and the outer surface of the lower end of the fixing plate is provided with a chute matched with the balance shafts.
Compared with the prior art, the utility model has the advantages and positive effects that,
1. the utility model discloses in, the cooperation through between telescopic link and the spring is convenient to continue the laminating with the toothed chain and the driving gear of length expansion, eliminates because the phenomenon that the gear live time overlength leads to wearing and tearing and the separation between the toothed chain, makes lathe body can normal use, protection mechanical structure's integrality.
2. The utility model discloses in, cooperation through between connecting rod and the telescopic shaft can make the telescopic link can not the skew route at the in-process of motion, it is spacing with the extension distance to the telescopic link, ensure the accuracy of structure, the material through the calorie axle can be restricted connecting rod extension distance for stereoplasm rubber, prevent that the chain tooth from being in tight state constantly under the effect of spring, accelerate the wearing and tearing of driving gear, protect the structure, the life of structure is prolonged, shape through the calorie axle can reduce frictional force for the ring, make things convenient for the connecting rod to remove, dismantle clearance mechanism through setting up sealed apron convenience, protect the structure more easily, the moving direction through balanced axle restriction slide makes the structure keep normal operating.
Drawings
Fig. 1 is a schematic view of a three-dimensional split structure of a gap eliminating device for double-gear rack transmission of a machine tool, which is provided by the utility model;
fig. 2 is a schematic view of a three-dimensional structure of a gap eliminating device for double-gear rack transmission of a machine tool, which is provided by the utility model;
FIG. 3 is a schematic cross-sectional view of the right side view 1 of the backlash eliminating device for the double-gear rack transmission of the machine tool according to the present invention;
fig. 4 is an enlarged schematic structural view of a position a in fig. 3 of the gap eliminating device for the double-gear rack transmission of the machine tool provided by the utility model;
fig. 5 is the utility model provides a front view structure sketch map that is used for clearance elimination device for double gear rack drive of lathe.
Illustration of the drawings:
1. a machine tool body; 2. sealing the cover plate; 3. a gap eliminating mechanism; 31. a fixing plate; 32. a telescopic rod; 33. a spring; 34. connecting the curved plates; 35. a rotating shaft; 36. a roller; 4. a telescopic shaft; 5. clamping a shaft; 6. a connecting rod; 7. a card slot; 8. inserting a rod; 9. a driving gear; 10. a toothed chain; 11. a transmission gear; 12. a rack; 13. and a balance shaft.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: the machine tool comprises a machine tool body 1, a driving gear 9 and a toothed chain 10, wherein the middle position of the inner surface of the machine tool body 1 is detachably connected with an anti-backlash mechanism 3;
the clearance eliminating mechanism 3 comprises a fixing plate 31, an expansion link 32, a spring 33, a connecting curved plate 34, a rotating shaft 35 and rollers 36, wherein the fixing plate 31 is detachably connected to the upper end position of the inner surface of the machine tool body 1, the expansion link 32 is detachably connected to the lower end position of the inner surface of the fixing plate 31, the spring 33 is slidably connected to the outer surface of the expansion link 32, the connecting curved plate 34 is fixedly connected to the outer surface of the lower end of the expansion link 32, the rotating shaft 35 is fixedly connected to the middle position of the inner surfaces of the front end and the rear end of the connecting curved plate 34, the rollers 36 are rotatably connected to the outer surface of the rotating shaft 35, the toothed chain 10) is rotatably connected to the lower end position of the outer surface of the rollers 36, the driving gear 9 is rotatably connected to the left side and the right side positions of the inner surface of the toothed chain 10, the fixing plate 31 is arranged on the inner wrapping surface of the machine tool body 1, and the toothed chain 10 with the enlarged length is conveniently attached to the driving gear 9 continuously through the cooperation between the expansion link 32 and the spring 33, the phenomenon that the gear is abraded and separated from the toothed chain 10 due to the fact that the gear is used for a long time is eliminated, the machine tool body 1 can be normally used, and the integrity of a mechanical structure is protected.
Referring to fig. 1-5, a transmission gear 11 is fixedly connected to the outer surface of the rear end of the driving gear 9, a rack 12 is slidably connected to the upper end of the outer surface of the transmission gear 11, and the machine body 1 can be driven more precisely by the mechanical mechanism driven by the rack 12 with the double gears.
Referring to fig. 1 to 5, the outer surface of the upper end of the telescopic rod 32 is detachably connected with a connecting rod 6, the outer surface of the upper end of the connecting rod 6 is fixedly connected with a telescopic shaft 4, the telescopic rod 32 cannot deviate from a path in the movement process through the matching between the connecting rod 6 and the telescopic shaft 4, the extending distance of the telescopic rod 32 is limited, and the accuracy of the structure is ensured.
Referring to fig. 1-5, the upper end of the outer surface of the connecting rod 6 is fixedly connected with the clamping shaft 5, the clamping shaft 5 is made of hard rubber, the extension distance of the connecting rod 6 can be limited by the clamping shaft 5 made of hard rubber, the toothed chain 10 is prevented from being constantly in a tight state under the action of the spring 33, the abrasion of the driving gear 9 is accelerated, the structure is protected, and the service life of the structure is prolonged.
Referring to fig. 1-5, the inner surface of the fixing plate 31 is provided with a slot 7 matching with the clamping shaft 5, the clamping shaft 5 is shaped like a circular ring, and the clamping shaft 5 is shaped like a circular ring to reduce friction force and facilitate the movement of the connecting rod 6.
Referring to fig. 1-5, the outer surface of the front end of the machine tool body 1 is detachably connected with the sealing cover plate 2, the sealing cover plate 2 corresponds to the fixing plate 31, the upper end of the outer surface of the rear end of the sealing cover plate 2 is uniformly and fixedly connected with the inserted rod 8, the gap eliminating mechanism 3 is conveniently detached by arranging the sealing cover plate 2, and the structure is protected more easily.
Referring to fig. 1 to 5, the outer surface of the lower end of the fixing plate 31 is slidably connected with four balance shafts 13, the outer surface of the lower end of the fixing plate 31 is provided with a sliding groove matched with the balance shafts 13, and the balance shafts 13 limit the moving direction of the sliding plate to keep the structure operating normally.
The working principle of the embodiment is as follows: when the device is used, firstly, as shown in fig. 1 and 4, the toothed chain 10 with the enlarged length is conveniently attached to the driving gear 9 continuously through the matching between the telescopic rod 32 and the spring 33, so that the phenomenon that the gear is abraded and separated from the toothed chain 10 due to overlong use time of the gear is eliminated, the machine tool body 1 can be normally used, and the integrity of a mechanical structure is protected;
meanwhile, according to the scheme shown in fig. 1, fig. 3 and fig. 5, the telescopic rod 32 cannot deviate from the path in the movement process through the matching between the connecting rod 6 and the telescopic shaft 4, the extending distance of the telescopic rod 32 is limited, the accuracy of the structure is ensured, the extending distance of the connecting rod 6 can be limited by hard rubber made of the clamping shaft 5, the toothed chain 10 is prevented from being in a tight state under the action of the spring 33, the abrasion of the driving gear 9 is accelerated, the structure is protected, the service life of the structure is prolonged, the friction force can be reduced by the clamping shaft 5 in a circular ring shape, the connecting rod 6 is convenient to move, the anti-backlash mechanism 3 is convenient to disassemble by arranging the sealing cover plate 2, the structure is protected more easily, and the structure is kept in normal operation by limiting the moving direction of the sliding plate through the balance shaft 13.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may apply the equivalent embodiments modified or modified by the above technical contents disclosed as equivalent variations to other fields, but any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention will still fall within the protection scope of the technical solution of the present invention.
Claims (7)
1. The utility model provides a be used for lathe double gear rack transmission to use anti-backlash device, includes lathe body (1), driving gear (9) and toothed chain (10), its characterized in that: the middle position of the inner surface of the machine tool body (1) is detachably connected with a clearance eliminating mechanism (3);
the clearance eliminating mechanism (3) comprises a fixed plate (31), an expansion link (32), a spring (33), a connecting curved plate (34), a rotating shaft (35) and a roller (36), the fixed plate (31) is detachably connected with the upper end position of the inner surface of the machine tool body (1), the telescopic rod (32) is detachably connected with the lower end position of the inner surface of the fixed plate (31), the spring (33) is connected with the outer surface of the telescopic rod (32) in a sliding way, the connecting curved plate (34) is fixedly connected with the outer surface of the lower end of the telescopic rod (32), the rotating shaft (35) is fixedly connected to the middle position of the inner surfaces of the front end and the rear end of the connecting bent plate (34), the roller (36) is rotatably connected to the outer surface of the rotating shaft (35), the toothed chain (10) is rotatably connected with the lower end of the outer surface of the roller (36), the driving gear (9) is rotatably connected with the left side and the right side of the inner surface of the toothed chain (10).
2. The backlash eliminating device for a double-gear rack transmission of a machine tool according to claim 1, wherein: the outer surface of the rear end of the driving gear (9) is fixedly connected with a transmission gear (11), and the upper end of the outer surface of the transmission gear (11) is connected with a rack (12) in a sliding mode.
3. The backlash eliminating device for a double-gear rack transmission of a machine tool according to claim 1, wherein: the outer surface of the upper end of the telescopic rod (32) is detachably connected with a connecting rod (6), and the outer surface of the upper end of the connecting rod (6) is fixedly connected with a telescopic shaft (4).
4. The backlash eliminating device for a double-gear rack transmission of a machine tool according to claim 3, wherein: the outer surface upper end position fixedly connected with card axle (5) of connecting rod (6), the material of card axle (5) is hard rubber.
5. The backlash eliminating device for a double-gear rack transmission of a machine tool according to claim 1, wherein: the inner surface of the fixing plate (31) is provided with a clamping groove (7) matched with the clamping shaft (5), and the clamping shaft (5) is in a circular ring shape.
6. The backlash eliminating device for a double-gear rack transmission of a machine tool according to claim 1, wherein: the outer surface of the front end of the machine tool body (1) is detachably connected with a sealing cover plate (2), the sealing cover plate (2) corresponds to the fixing plate (31), and the upper end of the outer surface of the rear end of the sealing cover plate (2) is fixedly connected with an inserted rod (8).
7. The backlash eliminating device for a double-gear rack transmission of a machine tool according to claim 1, wherein: the outer surface of the lower end of the fixing plate (31) is connected with four balance shafts (13) in a sliding mode, the number of the balance shafts (13) is four, and sliding grooves matched with the balance shafts (13) are formed in the outer surface of the lower end of the fixing plate (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220212768.5U CN217355430U (en) | 2022-01-26 | 2022-01-26 | Gap eliminating device for double-gear rack transmission of machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220212768.5U CN217355430U (en) | 2022-01-26 | 2022-01-26 | Gap eliminating device for double-gear rack transmission of machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217355430U true CN217355430U (en) | 2022-09-02 |
Family
ID=83043528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220212768.5U Expired - Fee Related CN217355430U (en) | 2022-01-26 | 2022-01-26 | Gap eliminating device for double-gear rack transmission of machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217355430U (en) |
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2022
- 2022-01-26 CN CN202220212768.5U patent/CN217355430U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220902 |
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| CF01 | Termination of patent right due to non-payment of annual fee |