CN217633790U

CN217633790U - Driver

Info

Publication number: CN217633790U
Application number: CN202221858715.7U
Authority: CN
Inventors: 克里斯汀·伽斯纳
Original assignee: Limoss Shenzhen Co Ltd
Current assignee: Limoss Shenzhen Co Ltd
Priority date: 2022-07-19
Filing date: 2022-07-19
Publication date: 2022-10-21
Anticipated expiration: 2032-07-19

Abstract

The utility model relates to the technical field of power transmission, and discloses a driver, which is characterized by comprising a shell and a transmission mechanism arranged in the shell, wherein the transmission mechanism comprises a driving motor connected with the shell, a worm arranged on a transmission shaft of the driving motor and a worm wheel arranged in the shell, and the worm wheel is engaged with the worm in a transmission way; the worm wheel is arranged in the shell through a rotating shaft, a first bearing and a second bearing are respectively arranged on two sides of the worm wheel, the first bearing and the second bearing are both sleeved on the rotating shaft, and the outer ring of the first bearing and the outer ring of the second bearing are fixedly connected with the shell; the transmission mechanism is characterized in that a transmission thread section is arranged on the rotating shaft, a transmission nut in threaded connection with the transmission thread section is installed on the transmission thread section, and a push rod is installed on the transmission nut. The drive of the embodiment has higher transmission efficiency and longer service life.

Description

Driver

Technical Field

The utility model relates to a power transmission technical field especially relates to a driver.

Background

The driver is an electric driving device which converts the rotary motion of the motor into the linear reciprocating motion of the push rod, and can be used as an executing machine in various simple or complex process flows so as to realize remote control, centralized control or automatic control. The driver is widely used for the motion driving unit in the industries of household appliances, kitchenware, medical appliances, automobiles and the like.

At present, the driver includes the axis of rotation and installs the worm wheel in the axis of rotation, installs the worm that links with the worm wheel meshing in the drive shaft of motor, and the motor rotates through driving the worm and drives the worm wheel and rotate to make the axis of rotation rotate, the axis of rotation is rotated and is driven the push rod and remove along the axis of rotation. Among the prior art, the one end of axis of rotation sets up the bearing, and the other end then with push rod threaded connection, and the worm wheel is located between bearing and the push rod, because the engaged position of worm gear to the distance of bearing is less than the engaged position of worm gear to the stress position of push rod far away, leads to the condition that rocks to appear easily in the worm wheel among the transmission process to influence the transmission efficiency of driver, reduce the life of driver.

In view of this, a driver is needed to improve the stability of the worm wheel during the transmission process, improve the transmission efficiency of the driver, and prolong the service life of the driver.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a driver to promote the stability of worm wheel in transmission process, promote the transmission efficiency of driver, promote the life of driver.

To achieve the purpose, the utility model adopts the following technical proposal:

a driver is characterized by comprising a shell and a transmission mechanism arranged in the shell, wherein the transmission mechanism comprises a driving motor connected with the shell, a worm arranged on a transmission shaft of the driving motor and a worm wheel arranged in the shell, and the worm wheel is in transmission engagement with the worm;

the worm wheel is arranged in the shell through a rotating shaft, a first bearing and a second bearing are respectively arranged on two sides of the worm wheel, the first bearing and the second bearing are both sleeved on the rotating shaft, and the outer ring of the first bearing and the outer ring of the second bearing are fixedly connected with the shell;

the transmission mechanism is characterized in that a transmission thread section is arranged on the rotating shaft, a transmission nut in threaded connection with the transmission thread section is installed on the transmission thread section, and a push rod is installed on the transmission nut.

Optionally, the distance from the first bearing to the worm gear is equal to the distance from the second bearing to the worm gear.

Optionally, a tail pulling structure is installed at one end of the shell, which is far away from the push rod;

the shell is provided with an embedded groove, and the tail pulling structure is provided with an embedded section corresponding to the embedded groove.

Optionally, the tail pulling structure is formed by assembling a first sub-shell and a second sub-shell, and the first sub-shell and the second sub-shell are detachably connected;

the first bearing is encased in the embedment section.

Optionally, one end of the first sub-shell, which is far away from the push rod, and one end of the second sub-shell, which is far away from the push rod, are both provided with hinge holes, and the hinge hole on the first sub-shell and the hinge hole on the second sub-shell are coaxial.

Optionally, the first sub-shell and the second sub-shell are both mechanism parts made of alloy materials.

Optionally, the housing is further provided with a guide rail, and the guide rail is parallel to the push rod;

a first limit switch is arranged at one end of the guide rail close to the driving motor, a second limit switch is arranged at one end of the guide rail far away from the driving motor, and the first limit switch and the second limit switch are both electrically connected with the driving motor;

when the transmission nut moves to a first set position along the transmission thread section, the transmission nut props against the first limit switch so as to stop the driving motor; when the transmission nut moves to a second set position along the transmission thread section, the transmission nut props against the second limit switch so that the driving motor stops rotating.

Optionally, the first limit switch is detachably fixed on the guide rail through a fixing piece, and the first limit switch is slidably connected with the guide rail;

the second limit switch is detachably fixed on the guide rail through a fixing piece, and the second limit switch is connected with the guide rail in a sliding mode.

Optionally, a sliding block is slidably mounted on the guide rail, and the first limit switch is mounted on the sliding block.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model provides a driver, the both sides of worm wheel are provided with first bearing and second bearing respectively, driving motor drives the worm and rotates, thereby it rotates to drive the worm wheel, because the restriction of first bearing and second bearing, make the stability of axis of rotation become better, thereby avoid installing the appearance of the condition that rocks appears in the epaxial worm wheel of rotation, driving motor passes through the worm and drives the worm wheel and rotate, thereby make drive nut remove along the section of can transmission screw, the realization is with stretching out and the effect of returning back of push rod, this application can effectively avoid the worm wheel to appear rocking and influence transmission efficiency, the life of driver has effectively been promoted.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.

The structure, ratio, size and the like shown in the drawings of the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention does not have the substantial significance in the technology, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy which can be produced by the present invention and the achievable purpose.

Fig. 1 is a front view of a driver provided by an embodiment of the present invention;

fig. 2 is a top view of a driver provided by an embodiment of the present invention;

FIG. 3 isbase:Sub>A schematic view of the cross-sectional structure A-A of FIG. 2;

fig. 4 is a front view of a driver provided by an embodiment of the present invention under a hidden housing;

fig. 5 is a perspective view of a driver under a hidden housing according to an embodiment of the present invention;

fig. 6 is a top view of a driver under a hidden housing according to an embodiment of the present invention;

fig. 7 is a schematic view of the cross-sectional structure B-B in fig. 6.

Illustration of the drawings: 1. a housing; 101. embedding a groove; 2. a transmission mechanism; 21. a drive motor; 22. A worm; 23. a worm gear; 24. a rotating shaft; 241. a transmission thread section; 31. a first bearing; 32. A second bearing; 4. a drive nut; 5. a push rod; 6. a tail pulling structure; 601. embedding a section; 602. A hinge hole; 61. a first split shell; 62. a second split shell; 7. a guide rail; 71. a first limit switch; 72. and a second limit switch.

Detailed Description

To make the objects, features and advantages of the present invention more obvious and understandable, the embodiments of the present invention are clearly and completely described in the embodiments of the present invention with reference to the drawings, and obviously, the embodiments described below are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. It should be noted that when one component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

The embodiment of the utility model provides a drive has effectively ensured the transmission stability of worm wheel in casing 1 to it is higher that the transmission efficiency of drive is, and is favorable to promoting the life of drive.

Referring to fig. 1 to 7, the driver includes a housing 1 and a transmission mechanism 2 installed in the housing 1, wherein the transmission mechanism 2 is used for driving the push rod 5 to move, so as to achieve the functions of extending and retracting the push rod 5.

Wherein, the transmission mechanism 2 comprises a drive motor 21 connected with the shell 1, a worm 22 arranged on a transmission shaft of the drive motor 21 and a worm wheel 23 arranged in the shell 1, and the worm wheel 23 is engaged with the worm 22 in a transmission way. The drive motor 21 rotates the worm 22, and thus the worm wheel 23.

The worm wheel 23 is rotatably mounted in the housing 1 through the rotating shaft 24, a first bearing 31 and a second bearing 32 are respectively arranged on two sides of the worm wheel 23, the rotating shaft 24 is sleeved with the first bearing 31 and the second bearing 32, and an outer ring of the first bearing 31 and an outer ring of the second bearing 32 are fixedly connected with the housing 1.

The rotating shaft 24 is provided with a transmission thread section 241, a transmission nut 4 in threaded connection with the transmission thread section 241 is installed on the transmission thread section 241, and a push rod 5 is installed on the transmission nut 4.

The worm wheel 23 is fixedly sleeved on the rotating shaft 24, when the driving motor 21 drives the worm wheel 23 to rotate, the rotating shaft 24 synchronously rotates, and at the moment, the transmission threaded section 241 rotates relative to the transmission nut 4, so that the transmission nut 4 moves along the axis of the transmission threaded section 241. Specifically, as shown in fig. 3, when the driving motor 21 rotates forward, the transmission nut 4 moves rightward under the driving of the transmission threaded section 241; when the driving motor 21 rotates reversely, the transmission nut 4 moves leftward by the driving of the transmission threaded section 241.

The first bearing 31 and the second bearing 32 are both sleeved on the rotating shaft 24, and the outer ring of the first bearing 31 and the outer ring of the second bearing 32 are fixedly connected with the housing 1, so that the rotating shaft 24 can only rotate along the axis of the rotating shaft, and the situation that the rotating shaft shakes due to different stresses at two ends of the worm wheel 23 in the extending/retracting process of the push rod 5 is avoided. This has promoted worm wheel 23's transmission stability, has further ensured the transmission efficiency of driver, and is favorable to promoting the life of driver, and has reduced the degree of rocking of push rod 5 in the use.

Preferably, the distance from the first bearing 31 to the worm wheel 23 is equal to the distance from the second bearing 32 to the worm wheel 23, and the moments of the acting force of the driving motor 21 received by the first bearing 31 and the second bearing 32 are the same, which is beneficial to balancing the transmission stress of the worm wheel 23 and prolonging the service life of the worm wheel 23.

Optionally, a tail-pulling structure 6 is installed at one end of the housing 1 far away from the push rod 5; the tail pull structure 6 is a pivoting mechanism to facilitate connection to adjacent components or mounting of the linkage mechanism.

The casing 1 is provided with the inlay groove 101, and the tail draws structure 6 to be provided with corresponding inlay groove 101 and inlays dress section 601, inlays dress section 601 and inlays and locate in inlaying groove 101, has promoted the installation stability of tail draw structure 6.

Optionally, the tail-pulling structure 6 is assembled by a first sub-shell 61 and a second sub-shell 62, and the first sub-shell 61 and the second sub-shell 62 are detachably connected; the first bearing 31 is encased in the embedding section 601. Specifically, the tail structure 6 is provided as a separate structure to facilitate installation, and in addition, the first bearing 31 is wrapped in the embedding section 601, so that the installation accuracy of the tail structure 6 can be effectively ensured.

Optionally, one end of the first sub-shell 61 away from the push rod 5 and one end of the second sub-shell 62 away from the push rod 5 are both provided with a hinge hole 602, and the hinge hole 602 on the first sub-shell 61 and the hinge hole 602 on the second sub-shell 62 are coaxial. The tail pulling structure 6 can be used for fixing a driven object, and the transmission requirements under different driving environments are met.

Optionally, the first sub-shell 61 and the second sub-shell 62 are both mechanical parts made of alloy materials. The tail-pulling structure 6 has better strength, toughness and fatigue resistance, can bear larger push-pull force and is not easy to break.

Preferably, the housing 1 is further provided with a guide rail 7, the guide rail 7 being parallel to the push rod 5; a first limit switch 71 is arranged at one end of the guide rail 7 close to the driving motor 21, a second limit switch 72 is arranged at one end of the guide rail 7 far away from the driving motor 21, and both the first limit switch 71 and the second limit switch 72 are electrically connected with the driving motor 21; when the transmission nut 4 moves to the first set position along the transmission thread section, the transmission nut 4 pushes against the first limit switch 71 to stop the driving motor 21; when the transmission nut 4 moves to the second set position along the transmission thread section, the transmission nut 4 props against the second limit switch 72 so as to stop the driving motor 21; the first limit switch 71 and the second limit switch 72 limit the extension range of the push rod 5.

Preferably, the first limit switch 71 is detachably fixed on the guide rail through a fixing piece, and the first limit switch 71 is slidably connected with the guide rail; the second limit switch 72 is detachably fixed on the guide rail through a fixing piece, and the second limit switch 72 is slidably connected with the guide rail. Specifically, the positions of the first limit switch 71 and the second limit switch 72 on the guide rail 7 can be adjusted, thereby achieving the effect of adjusting the telescopic range of the push rod 5.

Preferably, the guide rail is slidably provided with a sliding block, the first limit switch 71 is arranged on the sliding block, and the first limit switch 71 can abut against the transmission nut 4. Specifically, a slider is provided to better achieve the position adjustment function of the first limit switch 71; similarly, the second limit switch 72 may be disposed on another slider, and the first limit switch 71 and the second limit switch 72 need to maintain a space.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A driver, characterized by comprising a shell and a transmission mechanism arranged in the shell, wherein the transmission mechanism comprises a driving motor connected with the shell, a worm arranged on a transmission shaft of the driving motor and a worm wheel arranged in the shell, and the worm wheel is engaged with the worm in a transmission way;

2. The drive of claim 1, wherein a distance of the first bearing to the worm gear is equal to a distance of the second bearing to the worm gear.

3. The driver of claim 1, wherein a tail pull structure is mounted to an end of the housing distal from the push rod;

4. The driver of claim 3, wherein the tail pull structure is assembled by a first sub-shell and a second sub-shell, and the first sub-shell and the second sub-shell are detachably connected;

the first bearing is encased in the inlay section.

5. The driver according to claim 4, wherein the end of the first sub-housing away from the push rod and the end of the second sub-housing away from the push rod are provided with hinge holes, and the hinge hole on the first sub-housing and the hinge hole on the second sub-housing are coaxial.

6. The actuator of claim 4, wherein the first split housing and the second split housing are each a mechanical part made of an alloy material.

7. The driver of claim 1, wherein the housing further mounts a guide rail parallel to the push rod;

8. The driver of claim 7, wherein the first limit switch is detachably fixed on the guide rail through a fixing member, and the first limit switch is slidably connected with the guide rail;

9. An actuator according to claim 7, wherein a slider is slidably mounted on the guide rail, and the first limit switch is mounted on the slider.