CN203906746U - Gear rack automatic anti-backlash mechanism - Google Patents
Gear rack automatic anti-backlash mechanism Download PDFInfo
- Publication number
- CN203906746U CN203906746U CN201420239523.7U CN201420239523U CN203906746U CN 203906746 U CN203906746 U CN 203906746U CN 201420239523 U CN201420239523 U CN 201420239523U CN 203906746 U CN203906746 U CN 203906746U
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- helical gear
- mounting plate
- retarder
- gear
- automatic anti
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Abstract
The utility model discloses a gear rack automatic anti-backlash mechanism, which comprises a helical gear power component, a speed reducer mounting plate component and a helical gear adjusting component, wherein the helical gear power component and the helical gear adjusting component are respectively fixedly arranged on the speed reducer mounting plate component, the helical gear power component comprises a motor, a speed reducer, a helical gear mounting plate and a rack which are orderly connected with each other, the rack is engaged with a helical gear, the speed reducer mounting plate component comprises a speed reducer mounting plate, a helical gear dustproof cover and a speed reducer mounting plate pressing plate, the helical gear adjusting component comprises a helical gear adjusting rod, a belleville spring group and a helical gear adjusting rod mounting seat, the helical gear adjusting rod is arranged in the helical gear adjusting rod mounting seat, and the belleville spring group is arranged between the helical gear adjusting rod and the helical gear adjusting rod mounting seat. The gear rack automatic anti-backlash mechanism is simple in structure and steady and reliable, and guarantees transmission accuracy through a gear rack center distance adjusting mechanism which is easy to adjust and is used to eliminate a gap of a gear rack during the transmission process.
Description
Technical field
The utility model belongs to lathe technical field of transmission, particularly relates to a kind of gear rack automatic anti-backlash mechanism for woodworking machine.
Background technique
The requirement on machining accuracy of carpenter being produced along with society is more and more higher, and the rack and pinion drive mechanism that precision is high, good stability, life-span are long has been used on woodworking machine.Further carrying under high-precision requirement, the clearance eliminating mechanism of gear rack transmission is necessary to add in transmission device.Meanwhile, in woodworking machine working procedure, be often accompanied by the wood chip flying away, the working condition of every member is relatively severe, and therefore the parts on woodworking machine must ensure good stability, and structure need be as far as possible simple and reliable.
Model utility content
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of gear rack automatic anti-backlash mechanism is provided, and simple and stable structure is reliable, and the transmission gap precision that disappears is high.
In order to achieve the above object, the technical solution adopted in the utility model is:
One gear rack automatic anti-backlash mechanism, comprising:
Helical gear Power Component, retarder mounting plate assembly and helical gear adjusting part, helical gear Power Component and helical gear adjusting part are fixedly mounted on respectively on retarder mounting plate assembly;
Described helical gear Power Component comprises interconnective motor, retarder, helical gear mounting plate, helical gear successively and the tooth bar engaging with helical gear, intermeshing between helical teeth wheel and rack, helical gear is arranged on helical gear mounting plate, and motor, retarder, helical gear mounting plate are fixedly connected with;
Described retarder mounting plate assembly comprises retarder mounting plate, helical gear dust-proof cover and retarder mounting plate compressing tablet, and helical gear dust-proof cover and retarder mounting plate compressing tablet are arranged on retarder mounting plate;
Described helical gear adjusting part comprises helical gear adjustable lever, belleville spring group and helical gear adjustable lever fitting seat, helical gear adjustable lever is arranged in helical gear adjustable lever fitting seat, between helical gear adjustable lever and helical gear adjustable lever fitting seat, belleville spring group is set.
Preferably, on described retarder mounting plate, by cutting, two groups of C type groovings of encircling are set, by two groups of C type groovings, retarder mounting plate is divided into retarder mounting plate outer ring and retarder mounting plate inner ring, retarder mounting plate outer ring is fixed on the sliding platform of gear rack automatic anti-backlash mechanism place guide rail, mounted motor, retarder and helical gear on retarder mounting plate inner ring.
Preferably, between described retarder mounting plate inner ring and retarder, one speed reducer packing ring is also set, retarder, retarder packing ring and retarder mounting plate inner ring, be fixedly connected with by screw.
Preferably, described retarder mounting plate compressing tablet is divided into two groups of settings, and one group is arranged on retarder mounting plate outer ring, and one group is arranged on retarder mounting plate inner ring.
Preferably, every group of described mounting plate compressing tablet at least comprises 4 mounting plate compressing tablets, and mounting plate compressing tablet is evenly distributed on retarder mounting plate.
Preferably, described helical gear adjustable lever is divided into three sections from top to bottom, is followed successively by the thread section that screws with helical gear mounting plate inner ring, regulate by the interactional boss section of belleville spring group and helical gear mounting plate outer ring and for manual rotation square section.
Preferably, described helical gear mounting plate outer ring is fixedly connected with helical gear adjustable lever fitting seat, is interacted and is formed between retarder mounting plate outer ring and retarder mounting plate inner ring towards helical gear radical elasticity by belleville spring group and boss section.
Preferably, described belleville spring component is four groups, and every group comprises 3 belleville springs.
Preferably, the spanner that described gear rack automatic anti-backlash mechanism also comprises during for gap between manual tune gear rack and helical gear adjustable lever is supporting.
Preferably, helical gear dust-proof cover is C type helical gear dust-proof cover.
Compared with prior art, the beneficial effects of the utility model are: cooperatively interact and realize gear rack anti-backlash by helical gear Power Component, retarder mounting plate assembly and helical gear adjusting part, and simple in structure; By the cooperation of retarder mounting plate outer ring and retarder mounting plate inner ring, realize between gear rack the micro-relative movement radially, improve the transmission gap precision that disappears; By retarder mounting plate compressing tablet is set, effectively avoid the axial motion of the Internal and external cycle of retarder mounting plate; By helical gear adjusting part is set, realize the elastic pressure effect between helical gear and tooth bar by the elastic force effect of belleville spring group, improve the gap precision that disappears; The reliable and stable gear rack center distance regulation mechanism that is simultaneously easy to adjusting of the utility model, for the gap of eliminating gear rack transmission process, can realize the zero-clearance transmission of woodworking machine gear rack, cut structural reliability high, facilitate manual correction, ensure transmission accuracy.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
fig. 2 is helical gear Power Component structural representation of the present utility model;
Fig. 3 is the each modular construction schematic diagram of helical gear Power Component of the present utility model;
Fig. 4 is the each modular construction schematic diagram of retarder mounting plate assembly of the present utility model;
Fig. 5 is the each modular construction schematic diagram of helical gear adjusting part of the present utility model;
Fig. 6 is the local A enlarged diagrams of helical gear adjusting part parts of the present utility model.
Embodiment
Purport of the present utility model is to overcome the deficiencies in the prior art, a kind of gear rack automatic anti-backlash mechanism is provided, the utility model is as a part for woodworking machine, in conjunction with the Important Project application demand of the aspects such as the heavy working machine tool of existing precision and super hot investment casting equipment, fully application Modern mechanical design theory, solves the technical barrier on woodworking machine.And the gear rack automatic anti-backlash mechanism that the utility model is recorded, simple in structure, the reliable and stable gear rack center distance regulation mechanism that is simultaneously easy to adjusting, for eliminating the gap of gear rack transmission process, ensures transmission accuracy.
In order to make the purpose of this utility model, technological scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.In addition,, in each mode of execution of described the utility model, involved technical characteristics just can combine mutually as long as do not form each other conflict.
As shown in Figure 1, 2, a kind of gear rack automatic anti-backlash mechanism, comprising:
Helical gear Power Component 1, retarder mounting plate assembly 2 and helical gear adjusting part 3, helical gear Power Component 1 is fixedly mounted on respectively on retarder mounting plate assembly 2 with helical gear adjusting part 3.In Fig. 1, Fig. 1 is for overlooking gear rack automatic anti-backlash mechanism, and as seen from the figure, helical gear Power Component 1 is fixed on retarder mounting plate assembly 2, and helical gear adjusting part 3 is arranged on a side of retarder mounting plate assembly 2 for helical gear tooth bar is regulated.
As shown in Figure 3, described helical gear Power Component 1 comprises interconnective motor 11, retarder 12, helical gear mounting plate 13, helical gear 14 successively and the tooth bar 15 engaging with helical gear 14.Between helical gear 14 and tooth bar 15, by engaging close contact, helical gear 14 is arranged on helical gear mounting plate 13, and motor 11, retarder 12, helical gear mounting plate 13 are fixedly connected with.Motor 11 drives the work of whole gear rack automatic anti-backlash mechanism, drives retarder to rotate.
As shown in Figure 4, described retarder mounting plate assembly 2 comprises retarder mounting plate 21, helical gear dust-proof cover 22 and retarder mounting plate compressing tablet 23, and helical gear dust-proof cover 22 is arranged on retarder mounting plate 21 with retarder mounting plate compressing tablet 23.Preferably, helical gear dust-proof cover 22 is C type helical gear dust-proof cover, and the inner ring of C type helical gear dust-proof cover is just consistent with retarder shape, can better carry out proofing dust and protecting to retarder mounting plate 21.
Preferably, on described retarder mounting plate 21, by cutting, two groups of C type groovings of encircling are set, by two groups of C type groovings, retarder mounting plate 21 is divided into retarder mounting plate outer ring 21a and retarder mounting plate inner ring 21b, retarder mounting plate outer ring 21a is fixed on the sliding platform of gear rack automatic anti-backlash mechanism place guide rail, retarder mounting plate inner ring 21b upper mounted motor 11, retarder 12 and helical gear 14.
As most preferred embodiment of the present utility model, retarder mounting plate assembly 2 described in the utility model is made up of the helical gear dust-proof cover 22 of 21, eight retarder mounting plate compressing tablets 23 of a retarder mounting plate and C shape.Retarder mounting plate 21 is formed by spark-erosion wire cutting by a monoblock square metal material, on retarder mounting plate, cut out two C shape groovings encircling by spark-erosion wire cutting, for example, groove width is 1.5 millimeters, the in the situation that of fixing in retarder mounting plate outer ring, retarder mounting plate inner ring is along the sphere of activities that radially has 3 millimeters of reducer shaft.Two C shape groovings are divided into the retarder mounting plate of one retarder mounting plate outer ring 21a and the retarder mounting plate inner ring 21b with small relative activity.Square outer ring 21a is fixed on the platform that the slide guide at gear rack automatic anti-backlash mechanism described in the utility model place provides by four screws, there is no relative movement radially with tooth bar 15, retarder mounting plate inner ring 21b is connected with retarder 12 across a retarder packing ring by four screws, with not radially relative movement of gear 14, realize between gear 14 and tooth bar 15 a micro-relative movement radially.
Preferably, described retarder mounting plate compressing tablet 23 arranges eight altogether, is divided into two groups of installations, and one group is arranged on retarder mounting plate outer ring 21a above, and one group is arranged on retarder mounting plate inner ring 21b.
As most preferred embodiment of the present utility model, in retarder mounting plate assembly described in the utility model, 23 points two groups of eight retarder mounting plate compressing tablets are arranged on respectively by screw on the Internal and external cycle of retarder mounting plate 22 the same sides, four retarder mounting plate compressing tablets 23 of every group are distributed on four angles of retarder mounting plate 22, be arranged on inner ring 21b that retarder mounting plate compressing tablet 23 on retarder mounting plate outer ring 21a ensured retarder mounting plate not relatively outer ring 21a axially move outwardly, be arranged on simultaneously inner ring 21b that retarder mounting plate compressing tablet on retarder mounting plate inner ring 21b ensured retarder mounting plate not relatively outer ring 21a axially move inwardly.Two groups of retarder mounting plate compressing tablets 23 just can effectively avoid the Internal and external cycle of retarder mounting plate that axial relative movement occurs.
As shown in Figure 5,6, described helical gear adjusting part 3 comprises helical gear adjustable lever 31, belleville spring group 32 and helical gear adjustable lever fitting seat 33, helical gear adjustable lever 31 is arranged in helical gear adjustable lever fitting seat 33, between helical gear adjustable lever 31 and helical gear adjustable lever fitting seat 33, belleville spring group 32 is set.
Preferably, described helical gear adjustable lever 31 is divided into three sections from top to bottom, is followed successively by the thread section that screws with helical gear mounting plate inner ring 21b, regulate with the interactional boss section of helical gear mounting plate outer ring 21a and for manual rotation by belleville spring group 32 square section.
Preferably, described helical gear mounting plate outer ring 21a is fixedly connected with helical gear adjustable lever fitting seat 33, is interacted and is formed the radical elasticity towards helical gear 14 between retarder mounting plate outer ring 21a and retarder mounting plate inner ring 21b by belleville spring group 32 and boss section.
As shown in Figure 6, Fig. 6 is the amplification street corner schematic diagram of the local A of Fig. 5, and described belleville spring group 32 is divided into four groups, and every group comprises 3 belleville springs.Belleville spring possesses the features such as rigidity is large, saving space, reliability is high, the life-span is long, can adapt to well the severe working environment of woodworking machine.
Preferably, the spanner that described gear rack automatic anti-backlash mechanism also comprises during for gap between manual tune gear rack and helical gear adjustable lever 31 is supporting.By spanner manual correction gear rack gap, improve the gap precision that disappears.
As preferred embodiment of the present utility model, helical gear adjusting part 3 described in the utility model mainly comprises helical gear adjustable lever 31, belleville spring group 32 and helical gear adjustable lever fitting seat 33, and belleville spring group 32 is arranged between helical gear adjustable lever 31 and helical gear adjustable lever fitting seat 33.Helical gear adjustable lever 31 is divided into three parts in function, is followed successively by helical thread portion (being thread section), projection section (being boss section) and projected square part (being square section).The helical thread portion of upper end and retarder mounting plate inner ring 21b are threaded connection, middle projection section is by having elastic force effect between belleville spring group 32 and helical gear adjustable lever fitting seat 33, and helical gear adjustable lever fitting seat 33 is fixed on retarder mounting plate outer ring 21a above by four screws, these two-part have been realized between retarder mounting plate outer ring 21a and inner ring 21b towards helical gear 14 elastic force effect radially by belleville spring group 32.The projected square part of lower end is to provide the part of manual tune, rotate this part by spanner and can make the inner ring 21b precession of the relative retarder mounting plate of helical thread portion or back-out, thereby change the initial deformation amount of belleville spring group, realize the function of elastic pressure between manual tune helical teeth wheel and rack.
Above content is in conjunction with concrete optimal way further detailed description of the utility model, should not assert that concrete enforcement of the present utility model is confined to above explanation.For those skilled in the art, without departing from the concept of the premise utility, can also make some simple deduction or replace, within the definite protection domain of the claim that all should be considered as being submitted to by the utility model.
Claims (10)
1. a gear rack automatic anti-backlash mechanism, is characterized in that, comprising:
Helical gear Power Component (1), retarder mounting plate assembly (2) and helical gear adjusting part (3), helical gear Power Component (1) is fixedly mounted on respectively on retarder mounting plate assembly (2) with helical gear adjusting part (3);
Described helical gear Power Component (1) comprises interconnective motor (11), retarder (12), helical gear mounting plate (13), helical gear (14) successively and the tooth bar (15) engaging with helical gear, intermeshing between helical gear (14) and tooth bar (15), it is upper that helical gear (14) is arranged on helical gear mounting plate (13), and motor (11), retarder (12), helical gear mounting plate (13) are fixedly connected with;
Described retarder mounting plate assembly (2) comprises retarder mounting plate (21), helical gear dust-proof cover (22) and retarder mounting plate compressing tablet (23), and helical gear dust-proof cover (22) is arranged on retarder mounting plate (21) with retarder mounting plate compressing tablet (23);
Described helical gear adjusting part (3) comprises helical gear adjustable lever (31), belleville spring group (32) and helical gear adjustable lever fitting seat (33), helical gear adjustable lever (31) is arranged in helical gear adjustable lever fitting seat (33), between helical gear adjustable lever (31) and helical gear adjustable lever fitting seat (33), belleville spring group (32) is set.
2. gear rack automatic anti-backlash according to claim 1 mechanism, it is characterized in that: described retarder mounting plate (21) is upper arranges two groups of C type groovings of encircling by cutting, by two groups of C type groovings, retarder mounting plate (21) is divided into retarder mounting plate outer ring (21a) and retarder mounting plate inner ring (21b), retarder mounting plate outer ring (21a) is fixed on the sliding platform of gear rack automatic anti-backlash mechanism place guide rail, retarder mounting plate inner ring (21b) upper mounted motor (11), retarder (12) and helical gear (14).
3. gear rack automatic anti-backlash according to claim 2 mechanism, it is characterized in that: between described retarder mounting plate inner ring (21b) and retarder (12), one speed reducer packing ring is also set, retarder (12), retarder packing ring and retarder mounting plate inner ring (21b), be fixedly connected with by screw.
4. gear rack automatic anti-backlash according to claim 1 mechanism, it is characterized in that: described retarder mounting plate compressing tablet (23) is divided into two groups of settings, one group is arranged on retarder mounting plate outer ring (21a) above, and one group is arranged on retarder mounting plate inner ring (21b).
5. gear rack automatic anti-backlash according to claim 4 mechanism, is characterized in that: every group of described mounting plate compressing tablet (23) at least comprises 4 mounting plate compressing tablets, and mounting plate compressing tablet is evenly distributed on retarder mounting plate.
6. gear rack automatic anti-backlash according to claim 1 mechanism, it is characterized in that: described helical gear adjustable lever (31) is divided into three sections from top to bottom, be followed successively by the thread section that screws with helical gear mounting plate inner ring (21b), regulate with the interactional boss section in helical gear mounting plate outer ring (21a) and for manual rotation by belleville spring group (32) square section.
7. gear rack automatic anti-backlash according to claim 6 mechanism, it is characterized in that: described helical gear mounting plate outer ring (21a) is fixedly connected with helical gear adjustable lever fitting seat (33), interact and form the radical elasticity towards helical gear (14) between retarder mounting plate outer ring (21a) and retarder mounting plate inner ring (21b) by belleville spring group (32) and boss section.
8. gear rack automatic anti-backlash according to claim 6 mechanism, is characterized in that: described belleville spring group (32) is divided into four groups, and every group comprises 3 belleville springs.
9. gear rack automatic anti-backlash according to claim 6 mechanism, is characterized in that: the spanner that described gear rack automatic anti-backlash mechanism also comprises during for gap between manual tune gear rack and helical gear adjustable lever (31) is supporting.
10. gear rack automatic anti-backlash according to claim 1 mechanism, is characterized in that: helical gear dust-proof cover (22) is C type helical gear dust-proof cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420239523.7U CN203906746U (en) | 2014-05-12 | 2014-05-12 | Gear rack automatic anti-backlash mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420239523.7U CN203906746U (en) | 2014-05-12 | 2014-05-12 | Gear rack automatic anti-backlash mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203906746U true CN203906746U (en) | 2014-10-29 |
Family
ID=51781027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420239523.7U Withdrawn - After Issue CN203906746U (en) | 2014-05-12 | 2014-05-12 | Gear rack automatic anti-backlash mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203906746U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953714A (en) * | 2014-05-12 | 2014-07-30 | 东莞华中科技大学制造工程研究院 | Gear rack clearance eliminating mechanism |
| CN104948671A (en) * | 2015-07-03 | 2015-09-30 | 安庆联泰电子科技有限公司 | Interval-adjustable transmission mechanism |
-
2014
- 2014-05-12 CN CN201420239523.7U patent/CN203906746U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953714A (en) * | 2014-05-12 | 2014-07-30 | 东莞华中科技大学制造工程研究院 | Gear rack clearance eliminating mechanism |
| CN103953714B (en) * | 2014-05-12 | 2016-08-17 | 广东华中科技大学工业技术研究院 | Gear rack anti-backlash mechanism |
| CN104948671A (en) * | 2015-07-03 | 2015-09-30 | 安庆联泰电子科技有限公司 | Interval-adjustable transmission mechanism |
| CN104948671B (en) * | 2015-07-03 | 2017-05-24 | 盐城百圣机械有限公司 | Interval-adjustable 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 | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 523000 nine hi tech Road, Songshan Lake hi tech Industrial Development Zone, Guangdong, Dongguan, 1 Patentee after: GUANGDONG HUST INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE Patentee after: Dongguan Huake Precision Machinery Co., Ltd. Address before: 523000 nine hi tech Road, Songshan Lake hi tech Industrial Development Zone, Guangdong, Dongguan, 1 Patentee before: DG-HUST Manufacturing Engineering Institute Patentee before: Dongguan Huake Precision Machinery Co., Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20141029 Effective date of abandoning: 20160817 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |