CN203703029U - Mechanical stepless speed adjusting gear - Google Patents
Mechanical stepless speed adjusting gear Download PDFInfo
- Publication number
- CN203703029U CN203703029U CN201420039179.7U CN201420039179U CN203703029U CN 203703029 U CN203703029 U CN 203703029U CN 201420039179 U CN201420039179 U CN 201420039179U CN 203703029 U CN203703029 U CN 203703029U
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- CN
- China
- Prior art keywords
- ball bearing
- disc
- output shaft
- speed
- deep groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a mechanical stepless speed adjusting gear which comprises a driving disc connected with an input shaft and a driven disc connected with an output shaft. The input shaft between a driving gear and the driving disc is sequentially provided with a deep groove ball bearing, a butterfly-shaped spring and a thrust ball bearing, a bearing sleeve is arranged among the driving gear, the deep groove ball bearing and an upper cover, the upper cover is provided with a compression nut in contact with the bearing sleeve, the driving disc and the driven disc are oppositely staggered, a spacer ring is further arranged between the driving disc and the driven disc, a plurality of transmission steel balls are distributed on the spacer ring at equal intervals, the end, extending into a shell, of a speed adjusting rod is connected with an eccentric sleeve, a ball bearing is arranged between the eccentric sleeve and the spacer ring, and the output shaft between the driven disc and the driven gear is sequentially provided with a thrust ball bearing and a deep groove ball bearing for force transmission. The speed adjusting gear has the advantages of being simple in structure, low in cost, capable of being manufactured and used by general small machinery works, good in universality, easy and convenient to assemble and maintain, low in noise and good in speed adjusting effect; parts are convenient to manufacture.
Description
Technical field
The utility model relates to the transmission system of metal-cutting machine tool and universal machine, relates in particular to a kind of mechanical stepless speed regulator for main transmission.
Background technique
At present, stepless speed regulation technology is widely used in lathe and machinery, and compared with step speed regulation technology, its advantage applies exists: can on-stream speed governing, to obtain the most rational movement velocity; Can realize telecontrol and even automatically control, speed governing is convenient and strength-saving.
The realization of stepless speed regulation mainly contains two approach, and the one, take friction driving power as basis, change input output transmission radius reaches the mechanical stepless speed-regulating of speed change; The 2nd, with the electric stepless speed regulation of variable-frequency variable-voltage Direct Transform motor speed.In addition, use less pneumatic, hydraulic stepless speed regulating in addition etc., most mechanical stepless speed regulators have formed the supply of commodities of seriation in market, but these governor structure complexity, operation inconvenience, simultaneously also because the factors such as volume, price, parameter are difficult to generally application on lathe.The mechanical stepless speed regulator overwhelming majority Dou Shi lathe producer designed, designed adopting on present stage lathe, structure difference, standard differs, and versatility is too poor, has increased to a certain extent cost of production.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of simple in structure, and versatility is good, and is convenient to the mechanical stepless speed regulator of making in site, assembling and maintenance.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of mechanical stepless speed regulator, comprise the input shaft being connected with driving gear, the output shaft being connected with driven gear, the housing being formed by upper cover and casing and speed-regulating hand wheel, housing is provided with and stretches out its outer speed control rod, speed control rod is connected with speed-regulating hand wheel by screw rod, speed-regulating hand wheel is fixed on lathe tank wall, the inside of housing is provided with the driving disc being connected with input shaft and the driven disc being connected with output shaft, on input shaft between driving gear and driving disc, be provided with successively deep groove ball bearing, butterfly spring, thrust ball bearing, the lower end of deep groove ball bearing is connected with the Upper gasket of butterfly spring, the lower levelling plate of butterfly spring is connected with thrust ball bearing, between driving gear and deep groove ball bearing and upper cover, be provided with bearing housing, on be covered with pressurizing nut, pressurizing nut touches mutually with bearing housing, driving disc is relative with driven disc to be staggered, and is also provided with cage ring between the two, is equidistantly distributed with some transmission steel balls in cage ring, and one end that speed control rod stretches in housing is connected with eccentric bushing, between eccentric bushing and cage ring, is provided with ball bearing, on output shaft between driven disc and driven gear, be provided with successively thrust ball bearing and deep groove ball bearing carries out power transmission.
On above-mentioned, be covered with filler plug, bottom half is provided with oil drain plug, is tightly connected, so that this speed regulator is lubricated between bottom half and output shaft by seal ring.
On above-mentioned output shaft, be also fixed with rotating speed detection display device, to show in real time the output speed of this speed regulator.
The out of roughness of above-mentioned transmission steel ball is 0.0019-0.0021mm.
The utility model has the advantages that: this mechanical stepless speed regulator is simple in structure, and part is easy to make, and cost is low, generally small-sized machine factory can manufacture use, and versatility is good; Assembling, convenience easy to maintenance; Noise is low, and speed governing is effective.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is sectional structure schematic diagram of the present utility model;
Fig. 2 is plan structure schematic diagram of the present utility model;
Fig. 3 is transmission principle figure of the present utility model.
Wherein, 1, speed-regulating hand wheel, 2, screw rod, 3, speed control rod, 4, upper cover, 5, filler plug, 6, deep groove ball bearing, 7, bearing housing, 8, driving gear, 9, driving disc, 91, input shaft, 10, pressurizing nut, 11, butterfly spring, 12, thrust ball bearing, 13, ball bearing, 14, eccentric bushing, 15, oil drain plug, 16, seal ring, 17, transmission steel ball, 18, cage ring, 19, casing, 20, lathe tank wall, 8 ', driven gear, 9 ', driven disc, 91 ', output shaft, a, throw of eccentric between driving disc and driven disc, b, distance between driving disc center and cage ring center, c, distance between driven disc center and cage ring center.
Embodiment:
As depicted in figs. 1 and 2, a kind of mechanical stepless speed regulator, comprise the input shaft 91 being connected with driving gear 8, the output shaft 91 ' being connected with driven gear 8 ', the housing being formed by upper cover 4 and casing 19 and speed-regulating hand wheel 1, housing is provided with and stretches out its outer speed control rod 3, speed control rod 3 is connected with speed-regulating hand wheel 1 by screw rod 2, speed-regulating hand wheel 1 is fixed on lathe tank wall 20, the inside of housing is provided with the driving disc 9 being connected with input shaft 91 and the driven disc 9 ' being connected with output shaft 91 ', on input shaft 91 between driving gear 8 and driving disc 9, be provided with successively deep groove ball bearing 6, butterfly spring 11, thrust ball bearing 12, the lower end of deep groove ball bearing 6 is connected with the Upper gasket of butterfly spring 11, the lower levelling plate of butterfly spring 11 is connected with thrust ball bearing 12, driving gear 8, between deep groove ball bearing 6 and upper cover 4, be provided with bearing housing 7, upper cover 4 is provided with pressurizing nut 10, pressurizing nut 10 touches mutually with bearing housing 7, driving disc 9 stagger 6mm relative to driven disc 9 ', also be provided with cage ring 18 between the two, in cage ring 18, being equidistantly distributed with 12 out of roughness is the transmission steel ball 17 that 0.002mm, diameter are 11.906, one end that speed control rod 3 stretches in housing is connected with eccentric bushing 14, between eccentric bushing 14 and cage ring 18, is provided with ball bearing 13, on output shaft 91 ' between driven disc 9 ' and driven gear 8 ', be provided with successively thrust ball bearing and deep groove ball bearing carries out power transmission.
This speed regulator upper cover 4 is provided with filler plug 5, and casing 19 bottoms are provided with oil drain plug 15, between casing 19 bottoms and output shaft 91 ', is tightly connected by seal ring 16, so that the parts of enclosure interior are carried out to sufficient lubrication, improves the working efficiency of speed regulator; On output shaft 91 ', be also fixed with rotating speed detection display device, to show in real time the rotating speed of driven gear 8 ', be convenient to speed governing; Driving disc 9 and driven disc 9 ' are for accurately machined finished product after hardening with quality material, as GCr15, to guarantee its high wear resistance and high planeness and end jumping precision.
When this speed regulator work, driving gear 8 rotates, pull pressurizing nut 10 and apply downward power to bearing housing 7, bearing housing 7 further passes to driving disc 9 by deep groove ball bearing 6, butterfly spring 11 and thrust ball bearing 12 by power, driving disc 9 is exerted pressure downwards to transmission steel ball 17 in self rotating with input shaft 91, and the stressed rear drive cage ring 18 of transmission steel ball 17, driven disc 9 ' and output shaft 91 ' rotatablely move, on the other hand, rotate speed-regulating hand wheel 1, speed-regulating hand wheel 1 is by being attached thereto the screw rod 2 connecing, speed control rod 3, ball bearing 13 and eccentric bushing 14 allow the cage ring 18 of rotation do stable horizontal reciprocating movement, to carry out speed governing, specifically as shown in Figure 3: the throw of eccentric between driving disc 9 and driven disc 9 ' is a, also be the distance 6mm staggering between the above-mentioned driving disc of mentioning 9 and driven disc 9 ', distance between driving disc 9 centers and cage ring 18 centers is b, distance between driven disc 9 ' center and cage ring 18 centers is c, downward the exerting pressure to transmission steel ball 17 of driving disc 9, make transmission steel ball 17 produce frictional force and will rotatablely move and pass to driven disc 9 ' and output shaft 91 ' in cage ring 18 revolution rotation, meanwhile, change b and c by the horizontal reciprocating movement of cage ring 18, in the time of b>c, driven disc 9 ' and output shaft 91 ' rotating speed increase, in the time of b<c, driven disc 9 ' and output shaft 91 ' rotating speed reduce, and finally make the rotating speed of driven gear 8 ' synchronously increase or reduce with output shaft 91 ', and slewing range is 0-30, and efficiency is between 80% to 90%, is applicable to general lathe and machinery.
Claims (4)
1. a mechanical stepless speed regulator, comprise the input shaft being connected with driving gear, the output shaft being connected with driven gear, the housing being formed by upper cover and casing and speed-regulating hand wheel, described housing is provided with and stretches out its outer speed control rod, described speed control rod is connected with speed-regulating hand wheel by screw rod, described speed-regulating hand wheel is fixed on lathe tank wall, the inside of described housing is provided with the driving disc being connected with input shaft and the driven disc being connected with output shaft, it is characterized in that: on the input shaft between described driving gear and driving disc, be provided with successively deep groove ball bearing, butterfly spring, thrust ball bearing, the lower end of described deep groove ball bearing is connected with the Upper gasket of butterfly spring, the lower levelling plate of described butterfly spring is connected with thrust ball bearing, described driving gear, between deep groove ball bearing and upper cover, be provided with bearing housing, on described, be covered with pressurizing nut, described pressurizing nut touches mutually with bearing housing, described driving disc is relative with driven disc to be staggered, and is also provided with cage ring between the two, is equidistantly distributed with some transmission steel balls in described cage ring, and one end that described speed control rod stretches in housing is connected with eccentric bushing, between described eccentric bushing and cage ring, is provided with ball bearing, on output shaft between described driven disc and driven gear, be provided with successively thrust ball bearing and deep groove ball bearing carries out power transmission.
2. a kind of mechanical stepless speed regulator according to claim 1, is characterized in that: on described, be covered with filler plug, described bottom half is provided with oil drain plug, between described bottom half and output shaft, is tightly connected by seal ring.
3. a kind of mechanical stepless speed regulator according to claim 1, is characterized in that: on described output shaft, be also fixed with rotating speed detection display device.
4. a kind of mechanical stepless speed regulator according to claim 1, is characterized in that: the out of roughness of described transmission steel ball is 0.0019-0.0021mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420039179.7U CN203703029U (en) | 2014-01-22 | 2014-01-22 | Mechanical stepless speed adjusting gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420039179.7U CN203703029U (en) | 2014-01-22 | 2014-01-22 | Mechanical stepless speed adjusting gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203703029U true CN203703029U (en) | 2014-07-09 |
Family
ID=51053476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420039179.7U Expired - Fee Related CN203703029U (en) | 2014-01-22 | 2014-01-22 | Mechanical stepless speed adjusting gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203703029U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758953A (en) * | 2014-01-22 | 2014-04-30 | 南通西马特机器制造有限公司 | Mechanical stepless speed regulator |
-
2014
- 2014-01-22 CN CN201420039179.7U patent/CN203703029U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758953A (en) * | 2014-01-22 | 2014-04-30 | 南通西马特机器制造有限公司 | Mechanical stepless speed regulator |
| CN103758953B (en) * | 2014-01-22 | 2016-06-01 | 南通西马特机器制造有限公司 | A kind of mechanical stepless speed regulator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20170122 |