CN201078384Y - Engaging structure of rotor shaft and worm - Google Patents
Engaging structure of rotor shaft and worm Download PDFInfo
- Publication number
- CN201078384Y CN201078384Y CNU2007201116674U CN200720111667U CN201078384Y CN 201078384 Y CN201078384 Y CN 201078384Y CN U2007201116674 U CNU2007201116674 U CN U2007201116674U CN 200720111667 U CN200720111667 U CN 200720111667U CN 201078384 Y CN201078384 Y CN 201078384Y
- Authority
- CN
- China
- Prior art keywords
- rotor shaft
- section
- worm
- worm screw
- locating
- 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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- Gear Transmission (AREA)
- Gears, Cams (AREA)
Abstract
The utility model relates to a rotor shaft and worm combined structure, belonging to a motor manufacturing technical field, which comprises a rotor shaft and a worm with a central hole; wherein, a small section matched with the central hole of the worm is arranged on the rotor shaft body, a screw thread section is disposed on a small section head, a locating section with the diameter between the small section diameter and the rotor shaft body diameter is positioned at a small section root, an axial locating step is formed at the root of a locating section, a circumscribed surface with an point parallel to a shaft line is arranged on an external wall of the locating section, a locating hole fitted with the locating section is disposed on an internal end of the worm, an inscribed surface matched with the circumscribed surface of the locating section is positioned in the locating hole, a nut is matched on the screw thread section of the small section and an internal end face of the nut is contacted with an external end face of the worm. The location between the circular direction and the axial direction is reliable, which ensures the effective driving between the worm and the worm wheel.
Description
Technical field
The utility model relates to a kind of rotor shaft and worm screw cooperating structure, belongs to the technical field that motor is made.
Technical background
For realizing cooperating of rotor output terminal and worm gear, need worm screw be set at the rotor shaft output terminal, and worm screw will be subjected to the bigger circumferential and axial active force from worm gear, therefore, need the location of circumferential and axial between worm screw and the rotor shaft reliable, otherwise, may cause the transmission failure between rotor shaft and the worm gear.
Summary of the invention
The utility model purpose is to provide the location between a kind of circumferential and axial all more reliable, guarantees effective rotor shaft of transmission and worm screw cooperating structure between the worm and wheel.
Above-mentioned technical purpose of the present utility model mainly solves by the following technical programs: it comprises rotor shaft and the worm screw with center hole, described rotor shaft body is provided with the segment that cooperates with the center hole of worm screw, the segment head is provided with thread section, the segment root is provided with the positioning section of diameter between segment diameter and rotor shaft body diameter, root at positioning section forms the axially locating step, described positioning section outer wall is provided with the outer tangent plane of at least one place and parallel axes, described worm screw the inner is provided with the positioning hole that positioning section cooperates, be provided with the interior tangent plane that cooperates with the outer tangent plane of positioning section in the described positioning hole, be combined with nut on the thread section of described segment, described nut interior edge face contacts with the exterior edge face of worm screw.Wherein, the inner of worm screw contacts with the axially locating step of positioning section root, cooperates the nut on the rotor shaft thread section to act on the worm screw exterior edge face simultaneously, thereby has stoped moving to axial between worm screw and the rotor shaft; And the positioning hole of worm screw the inner cooperates with the positioning section of rotor shaft, the outer tangent plane of the interior tangent plane of positioning hole and positioning section is fitted, stoped the rotation to axial between worm screw and the rotor shaft, thereby realized that circumferential and axial are all joined location reliably between worm screw and the rotor shaft, can bear bigger circumferential torque and axial moment.
As preferably, the outer tangent plane number on the described rotor shaft positioning section is two, and described two circumscribedly are distributed on the outer wall of positioning section in the face of claiming.Wherein, be provided with on positioning section that tangent plane can make the location of circumferencial direction between rotor shaft and the worm screw more good outside two.
Characteristics such as therefore, the location that the utlity model has between the circumferential and axial is all more reliable, and the transmission between the assurance worm and wheel is effective.
Description of drawings
Fig. 1 is a kind of structural representation of rotor shaft of the present utility model;
Fig. 2 is the A-A view of Fig. 1;
Fig. 3 is a kind of structural representation of the utility model worm screw;
Fig. 4 is the left view of Fig. 3;
Fig. 5 is an assembly structure schematic representation of the present utility model.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1: as depicted in figs. 1 and 2, rotor shaft 1 body is provided with the segment 2 that cooperates with the center hole of worm screw, segment 2 heads are provided with thread section 3, segment 2 roots are provided with the positioning section 4 of diameter between segment diameter and rotor shaft body diameter, form axially locating step 5 at the root of positioning section 4, positioning section 4 outer walls be provided with on two outer walls that are symmetrically distributed in positioning section 4 and with the outer tangent plane 6 of parallel axes.
As shown in Figure 3 and Figure 4, worm screw 7 has center hole 10, and worm screw 7 the inners are provided with the positioning hole 8 that positioning section cooperates, and are provided with the interior tangent plane 9 that cooperates with the outer tangent plane of positioning section in the positioning hole 8.
As shown in Figure 5, the inner of worm screw 7 contacts with the axially locating step 5 of positioning section root, and the nut 11 on rotor shaft 1 thread section acts on the worm screw exterior edge face simultaneously, thereby has stoped moving to axial between worm screw and the rotor shaft; And the positioning hole of worm screw 7 the inners cooperates with the positioning section of rotor shaft, the outer tangent plane of the interior tangent plane of positioning hole and positioning section is fitted, stoped the rotation to axial between worm screw and the rotor shaft, thereby realized that circumferential and axial are all joined location reliably between worm screw and the rotor shaft, can bear bigger circumferential torque and axial moment.
Claims (2)
1. rotor shaft and worm screw cooperating structure, comprise rotor shaft and worm screw with center hole, it is characterized in that described rotor shaft body is provided with the segment that cooperates with the center hole of worm screw, the segment head is provided with thread section, the segment root is provided with the positioning section of diameter between segment diameter and rotor shaft body diameter, root at positioning section forms the axially locating step, described positioning section outer wall is provided with the outer tangent plane of at least one place and parallel axes, described worm screw the inner is provided with the positioning hole that positioning section cooperates, be provided with the interior tangent plane that cooperates with the outer tangent plane of positioning section in the described positioning hole, be combined with nut on the thread section of described segment, described nut interior edge face contacts with the exterior edge face of worm screw.
2. rotor shaft according to claim 1 and worm screw cooperating structure is characterized in that the outer tangent plane number on the described rotor shaft positioning section is two, and described two circumscribed facing claim to be distributed on the outer wall of positioning section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201116674U CN201078384Y (en) | 2007-07-11 | 2007-07-11 | Engaging structure of rotor shaft and worm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201116674U CN201078384Y (en) | 2007-07-11 | 2007-07-11 | Engaging structure of rotor shaft and worm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201078384Y true CN201078384Y (en) | 2008-06-25 |
Family
ID=39570445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201116674U Expired - Fee Related CN201078384Y (en) | 2007-07-11 | 2007-07-11 | Engaging structure of rotor shaft and worm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201078384Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564952A (en) * | 2013-10-11 | 2015-04-29 | 珠海格力电器股份有限公司 | Fixing rod and positioning adjustment device provided with same |
-
2007
- 2007-07-11 CN CNU2007201116674U patent/CN201078384Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564952A (en) * | 2013-10-11 | 2015-04-29 | 珠海格力电器股份有限公司 | Fixing rod and positioning adjustment device provided with same |
| CN104564952B (en) * | 2013-10-11 | 2019-05-07 | 珠海格力电器股份有限公司 | Fixed link and location adjusting device with it |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080625 Termination date: 20110711 |