CN203035843U - Rolling taper pin worm gear ring surface worm transmission structure - Google Patents
Rolling taper pin worm gear ring surface worm transmission structure Download PDFInfo
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- CN203035843U CN203035843U CN 201220754386 CN201220754386U CN203035843U CN 203035843 U CN203035843 U CN 203035843U CN 201220754386 CN201220754386 CN 201220754386 CN 201220754386 U CN201220754386 U CN 201220754386U CN 203035843 U CN203035843 U CN 203035843U
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- worm
- worm gear
- taper pin
- ring surface
- rotor
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Abstract
The utility model provides a rolling taper pin worm gear ring surface worm transmission structure and belongs to the technical field of transmission devices. The rolling taper pin worm gear ring surface worm transmission structure solves the problem that an existing worm and gear transmission structure is small in transmission torque, high in manufacturing cost and simultaneously small in meshing tooth number. The rolling taper pin worm gear ring surface worm transmission structure comprises a worm with spiral teeth and a worm gear meshed with the worm, the meshing surface of the worm and the worm gear is a secondary enveloping ring surface, the worm gear comprises a revolving shaft and a wheel body sleeved on the revolving shaft, a plurality of evenly distributed meshing tooth groups meshed with the spiral teeth are arranged on the outer ring surface of the wheel body, and each meshing tooth group is composed of at least one transmission unit. The rolling taper pin worm gear ring surface worm transmission structure has the advantages of being long in service life, large in transmission torque and the like.
Description
Technical field
The utility model belongs to the transmission device technical field, relates to a kind of drive mechanism, particularly a kind of rolling taper pin worm gear toroid helicoids worm drive mechanism.
Background technique
Drive structure of gear worm is mainly used to transmit motion and the power between two alternating axiss, and its application area is very extensive.Along with the continuous development of science and technology and the raising day by day of the level of production, common drive structure of gear worm is because the number of teeth of participation engagement simultaneously is few, it transmits moment of torsion and is restricted, have easy wearing and tearing, shortcoming such as working life is short and volume is big, this common drive structure of gear worm can not satisfy people's usage requirement.
For this reason, people explore through long-term, have proposed various solutions, and some has also applied for patent.For example, Chinese patent discloses a kind of planar double-enveloping wormwheel pair for the chain digital control gear hobbing machine worktable [notice of authorization number be: CN 2848436Y], this worm gear pair is because work in-process generates worm gear by enveloping worm, the number of teeth that participates in engagement simultaneously is increased to 9 teeth, transmits moment of torsion and doubles above.In this worm gear pair, suitable backlash is one of necessary condition of drive mechanism proper functioning, for the ease of making and installing, improves the transmission bearing capacity, and backlash is suitable big.The existence of sideshake can be avoided strength of gear distortion and frictional heating and expand caused extruding or stuck phenomenon, can compensate the error of making and assembling to a certain extent, thereby can adopt the manufacturing process of less expensive, the space that holds lubricant oil can be provided, it is lubricated etc. to be convenient to the flank of tooth.
Because the existence of backlash brings impact, vibration and noise must for modern Mechatronic Systems, also can reduce the servo-actuated precision of system and stability.If arrange backlash less, though can improve the transmission accuracy of transmission, the sliding friction aggravation of the flank of tooth on the worm gear and worm screw addendum surface, lubricant oil is difficult for it is lubricated, cause the working life of worm and gear low, and the material of the flank of tooth become the manufacture cost height by copper.Therefore, the drive structure of gear worm that needs a kind of low cost of manufacture of proposition, long service life, energy simultaneous adaptation highi degree of accuracy, big load to require is very necessary.
Summary of the invention
The purpose of this utility model is to have the problems referred to above at existing technology, has proposed a kind of long service life, rolling taper pin worm gear toroid helicoids worm drive mechanism that driving torque is big.
The purpose of this utility model can realize by following technical proposal:
A kind of rolling taper pin worm gear toroid helicoids worm drive mechanism, comprise the worm screw with helical tooth and the worm gear that is meshed with this worm screw, the Surface of action of described worm and worm wheel is the plane-generated double enveloping anchor ring, it is characterized in that, described worm gear comprises rotating shaft and is set in wheel body in this rotating shaft, have some grinding tooth groups equally distributed and that be meshed with above-mentioned helical tooth on the outer ring surface of described wheel body, described grinding tooth group is made up of at least one gear unit.
In above-mentioned rolling taper pin worm gear toroid helicoids worm drive mechanism, what described gear unit comprised that setting sleeve, the inner of being embedded on the wheel body outer ring surface be arranged in the rotor that can rotate along self axis in this setting sleeve and be located at this rotor the inner is used for preventing the limit structure that rotor comes off, described rotor is free end with the coaxial setting of setting sleeve and its outer end, and described setting sleeve is concordant with outer ring surface along radially extension and its outer end of wheel body.There is small gap between rotor and the setting sleeve, makes things convenient for rotor to rotate along the axis of self, in the course of the work, in this gap, increase lubricant oil, reduce the frictional force between rotor and the setting sleeve, prolong the working life of setting sleeve and rotor.
In above-mentioned rolling taper pin worm gear toroid helicoids worm drive mechanism, the limited step that leans with described annular shoulder block that described limit structure comprises the annular shoulder block that is positioned at rotor the inner and is located at above-mentioned setting sleeve the inner, described annular shoulder block extends radially outwardly along rotor, and the external diameter of described annular shoulder block equates with the external diameter of above-mentioned setting sleeve.
In above-mentioned rolling taper pin worm gear toroid helicoids worm drive mechanism, described limited step is the interior edge face of above-mentioned setting sleeve.
In above-mentioned rolling taper pin worm gear toroid helicoids worm drive mechanism, described rotor and setting sleeve are made by high-abrasive material.The high-abrasive material here can be the metallic material that is different from copper, such as steel, iron etc., also can be nonmetallic wear-resistant material, such as graphite etc., owing to do not adopt copper as making material, can effectively save manufacture cost.
In above-mentioned rolling taper pin worm gear toroid helicoids worm drive mechanism, have on the outer ring surface of described wheel body and the above-mentioned gear unit positioning hole of corresponding setting one by one, above-mentioned setting sleeve tightly fits in this positioning hole.During installation, rotor is located in the setting sleeve, the annular shoulder block of rotor inner end is resisted against on the limited step of setting sleeve, then setting sleeve is installed in the positioning hole, make itself and positioning hole drive fit.
In above-mentioned rolling taper pin worm gear toroid helicoids worm drive mechanism, described grinding tooth group is made up of an above-mentioned gear unit, and described gear unit is positioned at the center position of wheel body outer ring surface.
In above-mentioned rolling taper pin worm gear toroid helicoids worm drive mechanism, described grinding tooth group is made up of two above-mentioned gear units, and described gear unit evenly distributes along the rotation direction of above-mentioned helical tooth.
In above-mentioned rolling taper pin worm gear toroid helicoids worm drive mechanism, has the conical surface that matches with the flank of tooth of above-mentioned helical tooth on the free end of described rotor.This conical surface has increased the area of contact with helical tooth, and obtainable driving torque is bigger.
In above-mentioned rolling taper pin worm gear toroid helicoids worm drive mechanism, have on the outer ring surface of described wheel body be used to the arc-shaped notch that inwardly concaves that holds above-mentioned helical tooth, above-mentioned grinding tooth group is arranged in this arc-shaped notch, the concordant setting of recess face of the outer end of described setting sleeve and this arc-shaped notch.This arc-shaped notch has increased the area of contact with helical tooth on the one hand, makes its moment of torsion bigger, has saved material on the other hand, has reduced cost.
Compared with prior art, this rolling taper pin worm gear toroid helicoids worm drive mechanism has the following advantages: the Surface of action of worm and worm wheel is the plane-generated double enveloping anchor ring, and Nie He the number of teeth is many simultaneously, easily forms oil film, high lubricating effect; And rotor and helical tooth rolling friction, thereby reduce tooth surface abrasion, increase the service life; Because rotor and setting sleeve adopt the high-abrasive material of non-copper product to make, and can save the use of copper, thereby reduce production costs; Bearing capacity is big, the transmission accuracy height.
Description of drawings
Fig. 1 is the structural representation of the drive mechanism that provides among the embodiment one.
Fig. 2 is the structural representation of the worm gear that provides among the embodiment one.
Fig. 3 is the structural representation of the worm screw that provides of the utility model.
Fig. 4 is the side view of the worm gear that provides among the embodiment one.
Fig. 5 is the partial enlarged drawing at A place among Fig. 4.
Fig. 6 is the structural representation of the worm gear that provides among the embodiment two.
Fig. 7 is the side view of the worm gear that provides among the embodiment two.
Among the figure, 1, worm screw; 11, helical tooth; 2, worm gear; 21, rotating shaft; 22, wheel body; 22a, arc-shaped notch; 31, setting sleeve; 31a, limited step; 32, rotor; 32a, annular shoulder block; 32b, conical surface.
Embodiment
Below be specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
Embodiment one
This rolling taper pin worm gear toroid helicoids worm drive mechanism, it comprises the worm screw 1 with helical tooth 11 and the worm gear 2 that is meshed with this worm screw 1, as shown in Figure 1, the Surface of action of this worm screw 1 and worm gear 2 is the plane-generated double enveloping anchor ring.Concrete, as Fig. 2 and shown in Figure 4, worm gear 2 comprises rotating shaft 21 and the wheel body 22 that is set in this rotating shaft 21, has some grinding tooth groups equally distributed and that be meshed with helical tooth 11 on the outer ring surface of this wheel body 22, wherein, the grinding tooth group is made up of at least one gear unit.
In the present embodiment, as shown in Figure 2, the grinding tooth group is made up of a gear unit, and gear unit is positioned at the center position of wheel body 22 outer ring surfaces.
Be provided with and the gear unit positioning hole of corresponding setting one by one at the outer ring surface of wheel body 22, this gear unit is arranged in this positioning hole.As shown in Figure 4 and Figure 5, what gear unit comprised that setting sleeve 31, the inner of tightly fitting in the positioning hole be arranged in the rotor 32 that can rotate along self axis in this setting sleeve 31 and be located at these rotor 32 the inners is used for preventing the limit structure that rotor 32 comes off, rotor 32 is free end with setting sleeve 31 coaxial settings and its outer end, and setting sleeve 31 is concordant with outer ring surface along radially extension and its outer end of wheel body 22.
In the present embodiment, there is small gap between rotor 32 and the setting sleeve 31, make things convenient for rotor 32 to rotate along the axis of self, in the course of the work, in this gap, increase lubricant oil, reduce the frictional force between rotor 32 and the setting sleeve 31, prolong the working life of setting sleeve 31 and rotor 32.
Concrete, as shown in Figure 5, the limited step 31a that leans with this annular shoulder block 32a that this limit structure comprises the annular shoulder block 32a that is positioned at rotor 32 the inners and is located at setting sleeve 31 the inners, annular shoulder block 32a extends radially outwardly along rotor 32, and the external diameter of annular shoulder block 32a equates with the external diameter of setting sleeve 31.During installation, rotor 32 is located in the setting sleeve 31, the annular shoulder block 32a of rotor 32 inner ends is resisted against on the limited step 31a of setting sleeve 31, then setting sleeve 31 is installed in the positioning hole, make itself and positioning hole drive fit.
Concrete, as shown in Figure 5, this limited step 31a is the interior edge face of setting sleeve 31.
In the present embodiment, rotor 32 and setting sleeve 31 are made by high-abrasive material, and the high-abrasive material here can be the metallic material that is different from copper, such as steel, iron etc., also can be nonmetallic wear-resistant material, such as graphite etc., owing to do not adopt copper as making material, can effectively save manufacture cost.
As shown in Figure 5, have the conical surface 32b that matches with the flank of tooth of helical tooth 11 on the free end of this rotor 32, this conical surface 32b has increased the area of contact with helical tooth 11, and obtainable driving torque is bigger.
And be provided be used to the arc-shaped notch 22a that holds helical tooth 11 at the outer ring surface of wheel body 22, this arc-shaped notch 22a inwardly concaves, and the grinding tooth group just is arranged in this arc-shaped notch 22a, the concordant setting of recess face of the outer end of setting sleeve 31 and this arc-shaped notch 22a.This arc-shaped notch 22a has increased the area of contact with helical tooth 11 on the one hand, makes its moment of torsion bigger, has saved material on the other hand, has reduced cost.
This rolling taper pin worm gear toroid helicoids worm drive mechanism has the following advantages: the Surface of action of worm screw 1 and worm gear 2 is the plane-generated double enveloping anchor ring, and Nie He the number of teeth is many simultaneously, easily forms oil film, high lubricating effect; And rotor 32 and helical tooth 11 rolling friction, thereby reduce tooth surface abrasion, increase the service life; Because rotor 32 adopts the high-abrasive material of non-copper product to make with setting sleeve 31, can save the use of copper, thereby reduce production costs; Bearing capacity is big, the transmission accuracy height.
Embodiment two
The structural principle of present embodiment is basic identical with embodiment one structural principle, and different places are that as shown in Figure 6 and Figure 7, the grinding tooth group is made up of two gear units, and gear unit evenly distributes along the rotation direction of helical tooth 11.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has used worm screw 1, helical tooth 11, worm gear 2, rotating shaft 21, wheel body 22, arc-shaped notch 22a, setting sleeve 31, limited step 31a, rotor 32, terms such as annular shoulder block 32a, conical surface 32b morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (10)
1. rolling taper pin worm gear toroid helicoids worm drive mechanism, comprise the have helical tooth worm screw (1) of (11) and the worm gear (2) that is meshed with this worm screw (1), the Surface of action of described worm screw (1) and worm gear (2) is the plane-generated double enveloping anchor ring, it is characterized in that, described worm gear (2) comprises rotating shaft (21) and is set in wheel body (22) in this rotating shaft (21), have some grinding tooth groups equally distributed and that be meshed with above-mentioned helical tooth (11) on the outer ring surface of described wheel body (22), described grinding tooth group is made up of at least one gear unit.
2. a kind of rolling taper pin worm gear toroid helicoids worm drive mechanism according to claim 1, it is characterized in that, described gear unit comprises the setting sleeve (31) that is embedded on wheel body (22) outer ring surface, the inner be arranged in the rotor (32) that can rotate along self axis in this setting sleeve (31) and be located at this rotor (32) inner for preventing the limit structure that rotor (32) comes off, described rotor (32) is free end with the coaxial setting of setting sleeve (31) and its outer end, and described setting sleeve (31) is concordant with outer ring surface along radially extension and its outer end of wheel body (22).
3. a kind of rolling taper pin worm gear toroid helicoids worm drive mechanism according to claim 2, it is characterized in that, described limit structure comprises the limited step (31a) that leans with described annular shoulder block (32a) that is positioned at the inner annular shoulder block (32a) of rotor (32) and is located at above-mentioned setting sleeve (31) the inner, described annular shoulder block (32a) extends radially outwardly along rotor (32), and the external diameter of described annular shoulder block (32a) equates with the external diameter of above-mentioned setting sleeve (31).
4. a kind of rolling taper pin worm gear toroid helicoids worm drive mechanism according to claim 3 is characterized in that described limited step (31a) is the interior edge face of above-mentioned setting sleeve (31).
5. according to claim 2 or 3 or 4 described a kind of rolling taper pin worm gear toroid helicoids worm drive mechanisms, it is characterized in that described rotor (32) is made by high-abrasive material with setting sleeve (31).
6. according to claim 2 or 3 or 4 described a kind of rolling taper pin worm gear toroid helicoids worm drive mechanisms, it is characterized in that, have on the outer ring surface of described wheel body (22) and the above-mentioned gear unit positioning hole of corresponding setting one by one, above-mentioned setting sleeve (31) tightly fits in this positioning hole.
7. a kind of rolling taper pin worm gear toroid helicoids worm drive mechanism according to claim 1 is characterized in that described grinding tooth group is made up of an above-mentioned gear unit, and described gear unit is positioned at the center position of wheel body (22) outer ring surface.
8. a kind of rolling taper pin worm gear toroid helicoids worm drive mechanism according to claim 1 is characterized in that described grinding tooth group is made up of two above-mentioned gear units, and described gear unit evenly distributes along the rotation direction of above-mentioned helical tooth (11).
9. according to claim 2 or 3 or 4 described a kind of rolling taper pin worm gear toroid helicoids worm drive mechanisms, it is characterized in that having the conical surface (32b) that matches with the flank of tooth of above-mentioned helical tooth (11) on the free end of described rotor (32).
10. according to claim 2 or 3 or 4 described a kind of rolling taper pin worm gear toroid helicoids worm drive mechanisms, it is characterized in that, have on the outer ring surface of described wheel body (22) be used to the arc-shaped notch that inwardly concaves (22a) that holds above-mentioned helical tooth (11), above-mentioned grinding tooth group is arranged in this arc-shaped notch (22a), the concordant setting of recess face of the outer end of described setting sleeve (31) and this arc-shaped notch (22a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220754386 CN203035843U (en) | 2012-12-24 | 2012-12-24 | Rolling taper pin worm gear ring surface worm transmission structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220754386 CN203035843U (en) | 2012-12-24 | 2012-12-24 | Rolling taper pin worm gear ring surface worm transmission structure |
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| Publication Number | Publication Date |
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| CN203035843U true CN203035843U (en) | 2013-07-03 |
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| CN 201220754386 Expired - Fee Related CN203035843U (en) | 2012-12-24 | 2012-12-24 | Rolling taper pin worm gear ring surface worm transmission structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062336A (en) * | 2012-12-24 | 2013-04-24 | 台州金剑机械制造有限公司 | Rotating taper pin worm gear ring face worm transmission structure |
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2012
- 2012-12-24 CN CN 201220754386 patent/CN203035843U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062336A (en) * | 2012-12-24 | 2013-04-24 | 台州金剑机械制造有限公司 | Rotating taper pin worm gear ring face worm transmission structure |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130703 Termination date: 20151224 |
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| EXPY | Termination of patent right or utility model |