CN202132475U - Adjusting device for backlash of gear and rack - Google Patents
Adjusting device for backlash of gear and rack Download PDFInfo
- Publication number
- CN202132475U CN202132475U CN 201120233265 CN201120233265U CN202132475U CN 202132475 U CN202132475 U CN 202132475U CN 201120233265 CN201120233265 CN 201120233265 CN 201120233265 U CN201120233265 U CN 201120233265U CN 202132475 U CN202132475 U CN 202132475U
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- Prior art keywords
- gear
- rack
- backlash
- linear guide
- motor
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- Expired - Fee Related
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Abstract
The utility model relates to an adjusting device forbacklash of a gear and a rack in the field of drive devices of laser cutting machine tools. The adjusting device for backlash of the gear and the rack comprises a gear and a rack which are mutually meshed. The gear is rotatablely connected with the shaft end of a motor, and the lower part of the motor is fixedly provided with a cross beam. The rack is horizontally fixed at the side end of the top of the cross beam, and the cross beam is connected with a bearing plate through two groups of linear guide rail pairs 1 which are parallel up and down. The bottom plate of the motor is connected with the bearing plate through two groups of linear guide rail pairs 2 which are bilaterally symmetrical, and the side edge of the bearing plate orientedly vertical to the linear guide rail pairs 2 is provided with an adjusting bolt. The bottom plate of the motor is pushed through the adjusting bolt to move along the linear guide rail pairs 2 to regulate the backlash of the gear and the rack, and therefore the bearing plate can accurately move along the linear guide rail pairs 2 on the cross beam. Thus, the adjusting device for backlash of the gear and the rack has the advantages of simple structure and convenience for adjusting the backlash of the gear and the rack and is suitable for the field of the adjusting device for backlash of the gear and the rack of the laser cutting machine tools.
Description
Technical field
The utility model relates to laser cutting machine tool transmission device field, particularly rack and pinion drive field.
Background technique
Laser cutting machine tool is good with its cutting end face quality, and speed is fast, and precision is high, and the efficient advantages of higher has obtained to use widely in multiple industry.Transmission device is the critical piece that influences the laser beam cutting machine performance, and the gear rack transmission is one of main kind of drive of laser cutting machine tool.The gear rack backlash regulating device of existing laser beam cutting machine; Comprise pitch wheel and tooth bar, gear is rotatably connected with the axle head of motor, and tooth bar is horizontally fixed on the top side of crossbeam; Crossbeam passes through up and down, and two groups of parallel linear guide pairies are connected with support plate; Electric baseboard is fixedly connected with support plate, establishes pad on the linear guide pairs between support plate and the crossbeam, is used to adjust the backlash between the gear rack; Because the accurate backlash size of measuring gear tooth bar before the assembling, can only the "ball-park" estimate backlash big or small, just adorn during post debugging moves; If backlash is too big or too little, need support plate be pulled down, again the dismounting pad; Bring very big difficulty to assembling, and can't guarantee the uniformity of whole backlash.Therefore the shortcoming of existing technology is: during adjustment gear rack gap, need the repeated disassembled and assembled support plate, workload is big, and the uniformity of backlash is difficult to control.
The model utility content
The utility model provides a kind of gear rack backlash regulating device to the deficiency of existing technology, is intended to make the adjustment of gear rack backlash simple to operate, and the gap is even.
The purpose of the utility model is achieved in that a kind of gear rack backlash regulating device; Comprise pitch wheel and tooth bar; Gear is rotatably connected with motor shaft end; Motor lower portion is fixed with crossbeam, and tooth bar is horizontally fixed on the top side of crossbeam, and two groups of parallel linear guide pairies one were connected with support plate about crossbeam passed through; Electric baseboard is connected with support plate through symmetrical two groups of linear guide pairies two, is provided with the adjusting bolt at support plate with the vertical side of linear guide pairs two guiding.In the utility model; Motor is connected with support plate through base plate; And support plate is connected with crossbeam through linear guide pairs one, thereby realizes the gear motion of motor driven gear tooth bar is converted into the side-to-side movement of support plate on crossbeam, and the back lash that gear rack is suitable can guarantee that support plate carries out accurate motion on crossbeam; Only need to regulate electric baseboard through regulating bolt; Move along linear guide pairs two, just can regulate wheel and rack to suitable back lash is not regulated and need not lean on the repeated disassembled and assembled support plate to increase and decrease pad.Therefore, compared with prior art, the utlity model has advantage simple in structure, easy to operate.
Further improvement as the utility model; Regulate between bolt and the base plate and be provided with butterfly spring,, can effectively adjust the backlash between the gear rack through the flexibility adjustment of belleville spring; Can compensate the installation dimension error of tooth bar length direction, thereby guarantee that the gear rack backlash is even.
Description of drawings
Fig. 1 is the structural drawing of the utility model.
Fig. 2 is Fig. 1 right elevation
Wherein, 1. crossbeam; 2. adjusting bolt; 3. butterfly spring; 4. motor; 5. electric baseboard; 6. support plate; 7. linear guide pairs one; 8. linear guide pairs two; 9. tooth bar; 10. gear.
Embodiment
Like Fig. 1, shown in Figure 2; Be the gear rack backlash regulating device of the utility model, comprise pitch wheel 10 and tooth bar 9, gear 10 is rotatably connected with the axle head of motor 4; The bottom of motor 4 is fixed with crossbeam 1; Tooth bar 9 is horizontally fixed on the top side of crossbeam 1, and two groups of parallel linear guide pairies 1 were connected with support plate 6 about crossbeam 1 passed through, and electric baseboard 5 is connected with support plate 6 through symmetrical two groups of linear guide pairies 28; Be provided with adjusting bolt 2 at support plate 6 side vertical, between adjusting bolt 2 and base plate 5, be provided with butterfly spring 3 with the guiding of linear guide pairs 28.During work, motor 4 driven gears 10 be installed in tooth bar 9 gear motions on the crossbeam 1, electric baseboard 5 is delivered to the straight line motion of gear 10 along tooth bar 9 on the support plate 6 through linear guide pairs 28; Support plate 6 is under the leading role that is installed on the linear guide pairs 1 on the crossbeam 1; Along crossbeam 1 moving linearly,, need the backlash size between adjustment gear 10 and the tooth bar 9 for guaranteeing the accuracy of support plate 6 motions; The big I of this backlash moves along linear guide pairs 28 by regulating bolt 2 compressing belleville springs 3 pushing tow electric baseboards 5; And make gear 10 and tooth bar 9 tight engagement, and because belleville spring 3 has certain flexibility, the error that occurs in the time of can compensating tooth bar 9 assemblings; Thereby when guaranteeing that gear 10 moves on whole tooth bar 9, backlash remains evenly.
The utility model is not limited to the foregoing description; On the basis of the disclosed technological scheme of the utility model; Those skilled in the art is according to disclosed technology contents; Do not need performing creative labour just can make some replacements and distortion to some technical characteristicss wherein, these replacements and distortion are all in the protection domain of the utility model.
Claims (2)
1. gear rack backlash regulating device; Comprise pitch wheel and tooth bar; Said gear is rotatably connected with motor shaft end, and said motor lower portion is fixed with crossbeam, and said tooth bar is horizontally fixed on the top side of crossbeam; Said crossbeam passes through up and down, and two groups of parallel linear guide pairies one are connected with support plate; It is characterized in that said electric baseboard is connected with support plate through symmetrical two groups of linear guide pairies two, be provided with the adjusting bolt with the vertical side of linear guide pairs two guiding at support plate.
2. gear rack backlash regulating device according to claim 1 is characterized in that, is provided with butterfly spring between said adjusting bolt and the electric baseboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120233265 CN202132475U (en) | 2011-07-05 | 2011-07-05 | Adjusting device for backlash of gear and rack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120233265 CN202132475U (en) | 2011-07-05 | 2011-07-05 | Adjusting device for backlash of gear and rack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202132475U true CN202132475U (en) | 2012-02-01 |
Family
ID=45521242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120233265 Expired - Fee Related CN202132475U (en) | 2011-07-05 | 2011-07-05 | Adjusting device for backlash of gear and rack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202132475U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108687450A (en) * | 2018-07-23 | 2018-10-23 | 武汉蓝讯数控设备有限公司 | A kind of floating of laser cutting machine disappears gap transmission mechanism |
-
2011
- 2011-07-05 CN CN 201120233265 patent/CN202132475U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108687450A (en) * | 2018-07-23 | 2018-10-23 | 武汉蓝讯数控设备有限公司 | A kind of floating of laser cutting machine disappears gap transmission mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: YANGZHOU METALFORMING MACHINE CO., LTD. Free format text: FORMER NAME: YANGZHOU FORGING MACHINE-TOOLS CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 225127 No. 200, Ji'an Road, Hanjiang Economic Development Zone, Yangzhou, Jiangsu Patentee after: Yangzhou Forging Machine Tool Co., Ltd. Address before: 225127 No. 200, Ji'an Road, Hanjiang Economic Development Zone, Yangzhou, Jiangsu Patentee before: Yangzhou Metalforming Machine Group Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120201 Termination date: 20140705 |
|
| EXPY | Termination of patent right or utility model |