CN202565096U

CN202565096U - Gear motor with security mechanism

Info

Publication number: CN202565096U
Application number: CN2012201955001U
Authority: CN
Inventors: 吴周欣
Original assignee: FIRST TRANSMISSION TECHNOLOGY Co Ltd
Current assignee: FIRST TRANSMISSION TECHNOLOGY Co Ltd
Priority date: 2012-05-02
Filing date: 2012-05-02
Publication date: 2012-11-28
Anticipated expiration: 2022-05-02

Abstract

The utility model discloses a gear motor with a security mechanism. The gear motor comprises a motor body, a deceleration mechanism, a transmission mechanism and a touch control switch. The deceleration mechanism comprises a worm and a worm gear, wherein the worm extends from the motor body, and the worm gear corresponding to the worm is engaged with the worm to carry out transmission; the transmission mechanism comprises a base, a guide screw and a nut, wherein the base is fixed in the deceleration mechanism, the guide screw is pivoted on the base and is driven by the worm gear to rotate, and the nut is in threaded connection with the guide screw and produce linear moves; and the touch control switch is electrically connected with the motor body, wherein the touch control switch is installed in one side of the guide screw corresponding to the moving path of the nut, thereby enabling the motor body to stop operating when the nut touches the touch control switch. According to the utility model, the gear motor controls motions of a driven mechanism, multi-type driven mechanisms can be assembled, and the size of the gear motor and the driven mechanism after assembling can be reduced.

Description

Gear motor with security mechanism

Technical field

The utility model relates to a kind of actuating device, relates in particular to a kind of gear motor with security mechanism.

Background technology

In the mechanism of many transmission strokes, like aspects such as electric hospital bed, treadmill, electronic tables, with adjustment as the position; Be suitable common with popularize, touch switch is installed in the start position of its transmission stroke and final position respectively, makes mechanism carry out displacement with transmission; And during the touch switch of touching terminal point or start position, touch switch can the controlling organization outage, and avoids mechanism to continue start in the position of terminal point and starting point; Cause mechanism's idle running or wearing and tearing, and then improve safety in utilization.

Traditional actuating device; As shown in Figure 1, it mainly comprises a gear motor 10 and a follower 20 that is connected with gear motor 10, and this follower 20 comprises a trace 201, the bar 202 and of exerting oneself encircles piece 203; Trace 201 is spirally connected with the bar 202 of exerting oneself each other; Ring piece 203 is fixed in the bar 202 of exerting oneself, and gear motor 10 drives traces 201 and rotates, and carries out displacement with exert oneself bar 202 and ring piece 203 of drive; Again, bar 202 configuration of exerting oneself of first touch switch 30 and second touch switch, 40 correspondences, when making ring piece 203 touch first touch switches 30 or second touch switch 40, actuator 10 promptly can cut off the power supply and stop start.

Yet; The structural design of above-mentioned actuating device; It still has following disappearance on reality is used: one of which, the specification of the follower 20 of actuating device are all different, cause the assembly position of first touch switch 30 or second touch switch 40 also different; Therefore the follower 20 and the touch switch of multiple combination often need be prepared by manufacturer, and cause the product inventory problem of management and hoard pressure; Its two, the stroke of the bar 202 of exerting oneself is longer, bar 202 configuration of exerting oneself of first touch switch 30 and second touch switch, 40 correspondences can increase the volume of follower 20, makes the volume of actuating device seem heavy relatively.

The utility model content

One purpose of the utility model; Be to provide a kind of gear motor with security mechanism; It is to utilize touch switch to be arranged on the gear motor; Make outside the start of gear motor control follower, also can assemble all types of followers, and can dwindle the volume after gear motor and the follower assembling.

In order to reach above-mentioned purpose, the utility model provides a kind of gear motor with security mechanism, comprising:

One motor body;

One reducing gear comprises from the extended worm screw of this motor body and to should worm screw setting and a worm gear of the transmission that is engaged with each other;

One transmission mechanism, comprise the pedestal that is fixed on this reducing gear, be articulated in this pedestal and receive this worm-gear driven rotation a driving screw, and and this driving screw be spirally connected and produce a linearly moving nut; And

One touch switch electrically connects with this motor body, and this touch switch is provided in a side of this driving screw to mobile route that should nut, shuts down in order to touch this touch switch this motor body in season at this nut.

Above-mentioned gear motor with security mechanism, wherein this pedestal offers a guide groove of parallel this driving screw, and this nut has a rotation prevention portion, and this rotation prevention portion embedding limit is slipped in this guide groove.

Above-mentioned gear motor with security mechanism, wherein this rotation prevention portion exposes this pedestal through this guide groove.

Above-mentioned gear motor with security mechanism, wherein this transmission mechanism also comprises a fixture, and this fixture is fixed on this pedestal, and this touch switch is installed in this fixture.

Above-mentioned gear motor with security mechanism; Wherein this fixture has and this driving screw is an adjustable screw rod of configured in parallel, and this pedestal offers a draw-in groove of parallel this adjustable screw rod, and this touch switch has a matrix; This matrix has a clipping block; This matrix is provided with a perforation and is formed on the inner internal thread of this perforation, and this internal thread is spirally connected with this adjustable screw rod, and this clipping block embedding limit is slipped in this draw-in groove.

Above-mentioned gear motor with security mechanism, wherein touch switch and adjustable screw rod are respectively a plurality of, and respectively this touch switch respectively this adjustable screw rod that is spirally connected respectively forms one at interval between these any two touch switches.

Above-mentioned gear motor with security mechanism, wherein this clipping block exposes this pedestal through this draw-in groove.

Above-mentioned gear motor with security mechanism, wherein this driving screw and this worm screw are arranged perpendicular.

Above-mentioned gear motor with security mechanism, wherein this driving screw and this worm screw are configured in parallel.

Above-mentioned gear motor with security mechanism, wherein this reducing gear also comprises a housing, and this this worm screw of housing cover cap and this worm gear are also affixed each other with pedestal.

The utility model also has following effect:

Nut can be linear mobile because of driving screw clockwise rotates or rotates counterclockwise; When making nut touch touch switch; Motor body promptly shuts down, thereby passes through the contact position of touch switch and nut, with the rotating maximum number of turns of control driving screw; Avoid the rotation number of turns of driving screw to surpass user's expection, and then improve the safety in utilization of the utility model gear motor.

In addition,, can adjust the relative position of touch switch and nut through rotating adjustable screw rod, and then the maximum number of turns of adjustment driving screw rotation; Simultaneously, nut and touch switch partly are exposed to pedestal, making things convenient for the user to observe and to adjust, and the setting of conveniently finely tuning.

Again, the utility model gear motor is extra installing follower, continues start to avoid follower at terminal point and start position, causes follower idle running or wearing and tearing, and then strengthens safety in utilization; Gear motor can assemble all types of followers simultaneously, causes product inventory to avoid the dealer to consider the combination of follower and touch switch, and then reduces the assembly cost of gear motor and follower.

Moreover; The utility model touch switch is the displacement configuration of corresponding nut; Be the length configuration of corresponding driving screw, and the increase of the rotation number of turns of driving screw down, must not increase the length of driving screw; The flight pitch that only dwindles the driving screw outer peripheral edges gets final product, so the utility model can reduce the assembling volume of gear motor and follower effectively.

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in detail, but not as the qualification to the utility model.

Description of drawings

The user mode sketch map of the existing linear actuators of Fig. 1;

The three-dimensional exploded view of Fig. 2 the utility model transmission mechanism and touch switch;

The combination sketch map of Fig. 3 the utility model transmission mechanism and touch switch;

The three-dimensional exploded view of Fig. 4 the utility model gear motor;

The combination sketch map of Fig. 5 the utility model gear motor;

The user mode sketch map of Fig. 6 the utility model gear motor;

The cross-sectional schematic of Fig. 7 the utility model gear motor;

Another user mode sketch map of Fig. 8 the utility model gear motor;

Another cross-sectional schematic of Fig. 9 the utility model gear motor;

The user mode sketch map of Figure 10 the utility model touch switch;

The user mode sketch map of another embodiment of Figure 11 the utility model gear motor;

The cross-sectional schematic of another embodiment of Figure 12 the utility model gear motor;

The another user mode sketch map of Figure 13 the utility model gear motor.

Wherein, Reference numeral

10 ... Gear motor

20 ... Follower

201 ... Trace

202 ... The bar of exerting oneself

203 ... The ring piece

30 ... First touch switch

40 ... Second touch switch

1 ... Motor body

2 ... Reducing gear

21 ... Housing

22 ... Worm screw

23 ... Worm gear

3 ... Transmission mechanism

31 ... Pedestal

311 ... Guide groove

312 ... Draw-in groove

32 ... Driving screw

33 ... Nut

331 ... Rotation prevention portion

34 ... Fixture

341 ... Adjustable screw rod

4 ... Touch switch

41 ... Matrix

411 ... On & off switch

412 ... Clipping block

413 ... Perforation

414 ... Internal thread

100 ... Follower

200 ... Electronic table

Embodiment

Detailed description of relevant the utility model and technology contents, with the conjunction with figs. explanation as follows, yet appended accompanying drawing is not to be used to limit to the utility model only as illustrative purposes.

Please refer to Fig. 2 to shown in Figure 5, the utility model provides a kind of gear motor with security mechanism, and this gear motor mainly comprises a motor body 1, a reducing gear 2, a transmission mechanism 3 and a touch switch 4.

Reducing gear 2 comprises a housing 21, a worm screw 22 and a worm gear 23, housing 21 cover cap worm screws 22 and worm gear 23; Worm screw 22 is extended from motor body 1; The transmission that sets and be engaged with each other of worm gear 23 corresponding worm screws 22.

Transmission mechanism 3 comprises the pedestal 31 that is fixed on reducing gear 2, be articulated in pedestal 31 and receive worm gear 23 driven in rotation a driving screw 32, and and driving screw 32 be spirally connected and produce a linearly moving nut 33; Pedestal 31 is affixed each other with housing 21, and driving screw 32 is arranged perpendicular with worm screw 22; Wherein, pedestal 31 offers a guide groove 311 of parallel conductive screw rod 32, and nut 33 has a rotation prevention portion 331, and rotation prevention portion 331 embeddings limit is slipped in guide groove 311, and rotation prevention portion 331 is exposed to pedestal 31 through guide groove 311.

In addition, transmission mechanism 3 more comprises a fixture 34, and fixture 34 is fixed on pedestal 31, and touch switch 4 is installed in fixture 34, and this fixture 34 has an adjustable screw rod 341 that is configured in parallel with driving screw 32; Pedestal 31 offers a draw-in groove 312 of parallel adjustable screw rod 341 again.

Touch switch 4 electrically connects with motor body 1, and the mobile route of touch switch 4 corresponding nuts 33 is provided in a side of driving screw 32, shuts down in order to military order motor body 1 when nut 33 touches touch switch 4; Specify as follows; Touch switch 4 has a matrix 41; Matrix 41 has an on & off switch 411 and a clipping block 412, and matrix 41 is provided with a perforation 413 and is formed on an internal thread 414 of perforation 413 inside, and matrix 41 is spirally connected through internal thread 414 and adjustable screw rod 341; Clipping block 412 embeddings limit is slipped in draw-in groove 312, and clipping block 412 is exposed to pedestal 31 through draw-in groove 312.In addition, the quantity of touch switch 4 and adjustable screw rod 341 can be a plurality of, and the quantity of present embodiment touch switch 4 and adjustable screw rod 341 is respectively two, and each touch switch 4 is bolted in respectively and is formed with one between each adjustable screw rod 341, two touch switch 4 at interval.

The utlity model has the combination of the gear motor of security mechanism, it is to utilize reducing gear 2 to comprise from motor body 1 extended worm screw 22 and corresponding worm screw 22 sets and the worm gear 23 of the transmission that is engaged with each other; Transmission mechanism 3 comprises the pedestal 31 that is fixed on reducing gear 2, be articulated in pedestal 31 and receive worm gear 23 driven in rotation driving screw 32, and and driving screw 32 be spirally connected and produce linearly moving nut 33; Touch switch 4 electrically connects with motor body 1, and the mobile route of touch switch 4 corresponding nuts 33 is provided in a side of driving screw 32, shuts down in order to touch touch switch 4 seasonal motor bodies 1 at nut 33.By this; Nut 33 can be linear mobile because of driving screw 32 clockwise rotates or rotates counterclockwise, and when making nut 33 touch touch switch 4, motor body 1 promptly shuts down; Thereby through the contact position of touch switch 4 with nut 33; With the control driving screw 32 rotating maximum number of turns, avoid the rotation number of turns of driving screw 32 to surpass user's expection, and then improve the safety in utilization of the utility model gear motor.

Please refer to Fig. 6 to shown in Figure 10, the signal of the user mode of the utility model gear motor, wherein; Nut 33 receive driving screw 32 traction and guide groove 311 restriction and be linear displacement, specify as follows, the spiral shell mosquito of the screw thread of driving screw 32 outer peripheral edges and nut 33 inner peripherals is matched; And nut 33 is by guide groove 311 restrictions; Only can move down towards linear direction, cause driving screw 32 to rotate a circle, nut 33 pitch of thread of just advancing leaves; So the driving screw 32 rotation number of turns are many more, the displacement that nut 33 moves is just big more; In addition, when nut 33 touched the on & off switch 411 of touch switch 4, motor body 1 promptly shut down.Therefore, utilize the contact position of setting touch switch 4 and nut 33, i.e. the maximum number of turns of may command driving screw 32 rotations like Fig. 7 and shown in Figure 9, is avoided driving screw 32 to clockwise rotate the number of turns or rotates counterclockwise the number of turns surpassing the expectation.

In addition, the rotation prevention portion 331 of nut 33 is exposed to pedestal 31 through guide groove 311; Touch switch 4 is installed in adjustable screw rod 341, and clipping block 412 embeddings of touch switch 4 limit is slidably connected to draw-in groove 312 and is exposed to pedestal 31 through draw-in groove 312.By this,, can adjust the relative position of touch switch 4 and nut 33 through rotating adjustable screw rod 341, and then the maximum number of turns of adjustment driving screw 32 rotations; Simultaneously, the rotation prevention portion 331 of nut 33 and the clipping block 412 of touch switch 4 all are exposed to pedestal 31, making things convenient for the user to observe and to adjust, and the setting of conveniently finely tuning.

Please refer to Figure 11 to shown in Figure 12, another embodiment of the utility model gear motor, wherein the quantity of worm gear 23 is two, the transmission that is meshing with each other of this two worm gear 23, thus change the transmission direction of motor body 1, make driving screw 32 and worm screw 22 be configured in parallel.By this, no matter how the end of exerting oneself (worm screw 22) of the utility model gear motor and force side (driving screw 32) change transmission direction through worm gear 23, it all has above-mentioned function and effect.

Please refer to shown in Figure 13, the another user mode of the utility model gear motor, this gear motor utilizes driving screw 32 to connect followers 100; Thereby drive follower 100 starts; Again gear motor and follower 100 are embedded in the electronic table 200,, continue start at terminal point that goes up and down and start position to avoid follower 100 to adjust the up-down of electronic table 200; Cause follower 100 idle running or wearing and tearing, and then strengthen safety in utilization; Wherein, the utility model gear motor does not exceed with present embodiment, and it also can be used for the position adjustment of mechanisms such as electric hospital bed or treadmill; Again, thus follower 100 helps electronic table 200 to go up and down in order to be driven by gear motor, so follower 100 visual actual conditions are mechanisms such as swingle or expansion link, does not exceed with present embodiment.

In addition; Gear motor is extra installing follower 100; So the utility model gear motor can assemble all types of follower 100, causes product inventory to avoid the dealer to consider the combination of follower and touch switch, and then reduce the assembly cost of gear motor and follower 100.

Again, the displacement of the how corresponding follower of existing touch switch configuration, and longer because of the stroke of follower, and then increase the volume of follower; Compare down; The utility model touch switch 4 is displacement configurations of corresponding nut 33; Be the length configuration of corresponding driving screw 32, and the increase of the rotation number of turns of driving screw 32 down, must not increase the length of driving screw 32; The flight pitch that only dwindles driving screw 32 outer peripheral edges gets final product, so the utility model can reduce the assembling volume of gear motor and follower 100 effectively.

Certainly; The utility model also can have other various embodiments; Under the situation that does not deviate from the utility model spirit and essence thereof; Those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the utility model.

Claims

1. the gear motor with security mechanism is characterized in that, comprising:

One motor body;

2. the gear motor with security mechanism according to claim 1 is characterized in that, this pedestal offers a guide groove of parallel this driving screw, and this nut has a rotation prevention portion, and this rotation prevention portion embedding limit is slipped in this guide groove.

3. the gear motor with security mechanism according to claim 2 is characterized in that this rotation prevention portion exposes this pedestal through this guide groove.

4. the gear motor with security mechanism according to claim 1 is characterized in that this transmission mechanism also comprises a fixture, and this fixture is fixed on this pedestal, and this touch switch is installed in this fixture.

5. the gear motor with security mechanism according to claim 4 is characterized in that, this fixture has and this driving screw is an adjustable screw rod of configured in parallel; This pedestal offers a draw-in groove of parallel this adjustable screw rod; This touch switch has a matrix, and this matrix has a clipping block, and this matrix is provided with a perforation and is formed on the inner internal thread of this perforation; This internal thread is spirally connected with this adjustable screw rod, and this clipping block embedding limit is slipped in this draw-in groove.

6. the gear motor with security mechanism according to claim 5 is characterized in that, touch switch and adjustable screw rod are respectively a plurality of, and respectively this touch switch respectively this adjustable screw rod that is spirally connected respectively forms one at interval between these any two touch switches.

7. the gear motor with security mechanism according to claim 5 is characterized in that this clipping block exposes this pedestal through this draw-in groove.

8. the gear motor with security mechanism according to claim 1 is characterized in that, this driving screw and this worm screw are arranged perpendicular.

9. the gear motor with security mechanism according to claim 1 is characterized in that, this driving screw and this worm screw are configured in parallel.

10. the gear motor with security mechanism according to claim 1 is characterized in that this reducing gear also comprises a housing, and this this worm screw of housing cover cap and this worm gear are also affixed each other with pedestal.