CN2495852Y - Circulation ball arc surface worm transmission mechanism - Google Patents
Circulation ball arc surface worm transmission mechanism Download PDFInfo
- Publication number
- CN2495852Y CN2495852Y CN 01247200 CN01247200U CN2495852Y CN 2495852 Y CN2495852 Y CN 2495852Y CN 01247200 CN01247200 CN 01247200 CN 01247200 U CN01247200 U CN 01247200U CN 2495852 Y CN2495852 Y CN 2495852Y
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- worm
- ball
- groove
- spiral chute
- utility
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Abstract
The utility model relates to a cycling roller arc worm transmission device. The utility model mainly comprises a worm, a worm wheel, a roller and a steel belt; the worm helix rotating groove is provided with a roller; the roller is kept in the helix groove by belt; the two end of the helix groove are provided with a roller back groove which is connected with the worm central hole which can make a cycling moving passage between the worm groove and the worm pole; the roller is meshed with the worm gear groove and can drive the worm wheel to rotate; therefore the sliding friction between the worm poles; the utility model can reduce the heating and the abrasion and enhance the transmission efficiency. The utility model has a simple structure, is easy to be made, has a low cost and a high precision; and the utility model is applicable to the transmission of precision meter and large transmission ratio.
Description
The utility model relates to mechanical transmission.
Worm drive is a kind of important type of belt drive in the mechanical transmission, it is used for transmitting the motion and the power of orthogonal and disjoint two between centers in space, be characterized in that reduction speed ratio is big, running steadily, compact structure, thereby be widely used in the machinery of instrument, instrument, chemical industry, all kinds of lathe and light, heavy industry.But existing worm and wheel transmission is the sliding contact type of belt drive of the flank of tooth, during work, sizable Sliding velocity is arranged between mesh tooth face, and gear tooth friction, wearing and tearing, heating are big, and mechanical efficiency is low.Bring into play worm geared advantage more fully in order to overcome above-mentioned shortcoming, its fundamental way is the worm transmission pair that replaces sliding friction with the worm transmission pair of rolling friction.In recent years, people are carrying out unremitting effort for this reason, have made various trials, but all because there is the difficulty of defective or manufacture view in design aspect, product fails to come out.
The purpose of this utility model is, propose a kind of simple in structure, easy to process, realize the circulating ball hourglass worm transmission device of transferring power and motion between the worm and wheel, improving Efficiency of Worm Gearing with means of rolling to reduce the heating and the wearing and tearing of the flank of tooth.
For achieving the above object, the utility model by the following technical solutions:
Circulating ball hourglass worm transmission device mainly comprises worm screw (1), worm gear (3), it is characterized in that: this device also comprises ball (2), steel band (4); Spiral chute shape of cross section on the worm screw (1) is half garden shape, places ball (2) in the spiral chute, and steel band (4) is installed on the worm screw (1), and the spiral chute of its position and worm screw (1) matches, in order to ball (2) is remained in the spiral chute; There is the bead returning groove (6) that communicates with worm screw (1) center hole at the spiral chute two ends, make spiral chute and worm screw center hole form a passage that can allow ball (2) shuttling movement; The flank of tooth of worm gear (3) is and the plane of axis tilt, and profile of tooth is trapezoidal, and its transverse tooth profile and normal plane flank profil are straight line, and gullet base has U-groove bevel, is used to allow steel band (4) pass through; Ball (2) is meshed with the teeth groove of worm gear (3), and when worm screw (1) turned round, ball (2) rolled in spiral chute, promotes worm gear (3) revolution thereby form a series of " tooth ".
Major advantage of the present utility model is:
(1) contact between the worm and wheel becomes rolling by slip, thereby it is little to generate heat, the transmission efficiency height.
(2) because friction is little, all available steel of worm and worm gear is made, and has reduced manufacture cost, also can adopt grinding simultaneously, and its precision is further improved.
(3) this apparatus structure compactness, simple is convenient to processing.
(4) owing to adopt hourglass worm, worm gear also is a cambered surface simultaneously, makes that the ball number of participating in engagement driving is more, thereby has not only improved transmission accuracy, and bearing capacity is increased.
(5) can adopt the mode that strengthens ball diameter to eliminate the reversing drive gap, improve transmission accuracy.
Description of drawings is as follows:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the B-B sectional view of Fig. 1;
Fig. 4 is the utility model worm tooth groove shape schematic representation;
Fig. 5 is the utility model worm-gear tooth groove shape schematic representation.
Below in conjunction with description of drawings embodiment of the present utility model:
This device mainly is made up of worm screw (1), worm gear (3), ball (2), steel band (4).Spiral chute on the worm screw (1) is made on the circular arc solid of rotation, and its nodal section is an arc surface, and the spiral chute cross section is semicircle, places ball (2) in the spiral chute, and holds it in the spiral chute with steel band (4).Steel band (4) two ends are fixed on the worm screw (1) with screw (5), and steel band (4) is shape in the shape of a spiral, and its position on worm screw (1) and the spiral chute of worm screw (1) match.There is the bead returning groove (6) that communicates with center hole at the spiral chute two ends of worm screw (1), bead returning groove (6) is that the garden arc curve by smooth connection is constituted, it makes spiral chute and worm screw center hole form the passage of a sealing, like this, when worm screw (1) is rotated, ball (2) just can be in this passage shuttling movement.The flank of tooth of worm gear (3) is and the plane of axis tilt, and profile of tooth is trapezoidal, and its transverse tooth profile and normal plane flank profil are straight line.Worm gear (3) gullet base has U-groove bevel, is used to allow steel band (4) pass through.Ball (2) is meshed with the teeth groove of worm gear (3), when worm screw turns round, ball (2) circulating rolling in spiral chute, thereby form a series of " tooth " and promote worm gear (3) revolution, with transferring power, like this, just the sliding friction between worm and wheel is become the rolling friction between the ball and the worm gear flank of tooth.
Claims (3)
1. circulating ball hourglass worm transmission device, mainly comprise worm screw (1), worm gear (3), it is characterized in that: this device also comprises ball (2), steel band (4), place ball (2) in the spiral chute on the worm screw (1), steel band (4) is installed on the worm screw (1), spiral chute on its position and the worm screw (1) matches, in order to ball (2) is remained in the spiral chute, there is the bead returning groove (6) that communicates with worm screw (1) center hole at the spiral chute two ends, make spiral chute and worm screw center hole form a passage that can allow ball (2) shuttling movement, ball (2) is meshed with the teeth groove of worm gear (3).
2. circulating ball hourglass worm transmission device according to claim 1 is characterized in that: the spiral chute cross section on the worm screw (1) is for semicircle.
3. circulating ball hourglass worm transmission device according to claim 1 is characterized in that: the profile of tooth of worm gear (3) is the tapered plane stepped tooth, and gullet base has U-groove bevel
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01247200 CN2495852Y (en) | 2001-08-06 | 2001-08-06 | Circulation ball arc surface worm transmission mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01247200 CN2495852Y (en) | 2001-08-06 | 2001-08-06 | Circulation ball arc surface worm transmission mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2495852Y true CN2495852Y (en) | 2002-06-19 |
Family
ID=33658092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01247200 Expired - Fee Related CN2495852Y (en) | 2001-08-06 | 2001-08-06 | Circulation ball arc surface worm transmission mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2495852Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107816512A (en) * | 2017-12-06 | 2018-03-20 | 张德明 | A kind of ball globoid worm pair |
| CN108775377A (en) * | 2018-08-10 | 2018-11-09 | 温州维菱机器人有限公司 | A kind of turbine and worm rotational structure |
| CN110107653A (en) * | 2019-05-25 | 2019-08-09 | 石雅 | A kind of circulating steel ball turbine and worm structure and the speed reducer with the structure |
-
2001
- 2001-08-06 CN CN 01247200 patent/CN2495852Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107816512A (en) * | 2017-12-06 | 2018-03-20 | 张德明 | A kind of ball globoid worm pair |
| CN108775377A (en) * | 2018-08-10 | 2018-11-09 | 温州维菱机器人有限公司 | A kind of turbine and worm rotational structure |
| CN110107653A (en) * | 2019-05-25 | 2019-08-09 | 石雅 | A kind of circulating steel ball turbine and worm structure and the speed reducer with the structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |