TWM306118U - Driving structure of linear actuator - Google Patents

Description

M306118 VIII. New description: [New technical field] This creation is a linear actuator drive structure, especially a linear actuator drive structure that can reduce the overall volume. [Prior Art] A general linear actuator is applied to the body for forward or backward movement. For example, a common fitness treadmill uses such a linear actuator to control the lifting angle of the running platform slope, and utilizes linearity. The stroke control mechanism of the actuator performs the operation control of the motor, and timely adjusts to the lifting slope of the required running platform. As shown in Figs. 7 to 8, a conventional linear actuator is driven by a motor (not shown) to drive a stroke control mechanism 7 to adjust the required stroke. The motor shaft of the motor is 8 5 . The timing gear 8 is disposed on the body 8 and the timing gear 8 1 also drives a transmission gear 8 2 and drives the stroke control mechanism 7. The rotation of the transmission gear 8 is for braking. The body (not shown) performs the required action, and the stroke control mechanism 7 is composed of a total stroke control mechanism 71 and a one-step process control mechanism 72, which controls the body once. The travel of the total stroke, and the step stroke control mechanism 7 2 controls the step positioning of the body in the total stroke, which divides the total stroke distance into equal parts, so the total stroke control mechanism 7 1 The obtained drive speed is slower, and the drive speed of the step travel control mechanism 72 is faster. The total stroke control mechanism 7 1 further includes a reduction gear 7 1 5 M306118 1 , two triggering members 7 丄 2, 7 2 and 2 micro switch 714 which are combined with each other and pivoted to the base 8 , the reduction gear The 7η is driven by the timing wheel 8 1 and transmitted through a gear set of the gear set 7 and then simultaneously rotated by the two-handle 716 in the wheel set 715, each of the trigger members 712 and 7121 respectively have a convex portion 713 on the outer side, and each of the convex portions 713 is separated from each other by 7 ^ degrees and the sub-riding should be each of the micro-motions _ 7 1 4, when each of the trigger members I" 5: I1 2 1 The convex portions 7 1 3 are respectively pressed to touch the micro-switches 7 1 4, that is, to control the travel of the body for one total stroke. Further, the step-and-travel control mechanism 72 further includes a gear member. 2 2 4 Ξ:: 7 2, a ring magnet 7 2 3 and a magnetic switch 7 7 21 are driven by the deceleration of the total stroke control mechanism 7 1 = 1 1 're-synchronously rotate the pivoting member 7 2 2 and drive the = shape The magnet 7 2 3 rotates', so that the reed switch 7 2 4 continuously provides a control signal ϋ (not shown) for the positioning signal to force the body 2 to stop running. Control the positioning position of the body in the total stroke. However, the lack of such a material is that its overall volume is still L = the reason is that the stroke control mechanism 7 is controlled by the total stroke 7 1 and - Steps are made up of the health-care mechanism 7 2, that is, the head office private control mechanism 7 and the step-by-step control system 7 2 are respectively controlled by the stroke actuation and the positioning control in the total stroke, and the shirts are individually operated. Therefore, the structure of such a linear actuator is really changed.

Must H 6 M306118 [New content] The main purpose of the present invention is to solve the above problems and provide a linear actuator driving structure which utilizes a total stroke gear sleeved on a spindle member, which is obtained by the total stroke gear The rotational speed is slower than the rotational speed obtained by the spindle member. When the spindle member is driven to rotate by the motor shaft, two different rotational speeds of power can be simultaneously transmitted to control the timely operation of the motor, and the overall travel of the body can be controlled. The distance, as well as the hyperposition in the total stroke, has the advantage of relatively reducing the overall volume of the linear actuator and increasing the usability of the space. For the purpose of the foregoing, the present invention is to drive a desired stroke by a motor shaft mounted on a motor, and the linear actuator comprises: a body having a transmission portion, the transmission portion being provided Driven by the motor shaft; a spindle member is attached to the base body, and the spindle member has a small diameter portion and a large diameter portion, and the large diameter portion is coupled to the motor shaft at the same time as the transmission portion a total stroke gear, which is sleeved on the small diameter portion of the main shaft member and at an appropriate distance from the motor shaft, the total stroke gear is subjected to differential transmission of the transmission portion, and the total stroke gear is obtained The rotational speed is slower than the rotational speed obtained by the main shaft member; in addition, two other combined trigger members are further disposed on the total stroke gear, and the total stroke gear train simultaneously rotates each of the trigger members, and each of the trigger members is further separated. Corresponding to a micro switch, respectively, for respectively pressing the micro switch to control the travel distance of the total stroke; a signal sensing device is disposed on the small diameter portion of the spindle member, and the M7 M306118 is provided for the signal sensing device At the time of actuation, a signal is continuously provided to control the motor to stop or operate, and to control the positioning of the predetermined distance in the sub-total stroke. The above and other objects and advantages of the present invention will become more apparent from the detailed description of the embodiments of the invention described herein.

Of course, this (4) allows for differences on certain parts, or (4) of the other parts, but the choices used are in the book, and the construction is shown in the drawings. W [Embodiment] Please refer to Figure 1 to Figure 3. The figure shows the selected species for this creation. This is for illustrative purposes only. In (4) ^ Motor t = linear actuator drive structure 'its The motor shaft 4 is mounted by one of the motor shafts 4 to drive the required operation. The linear actuator comprises: a juice and a private body, and the body 1 is provided with a transmission portion i 〇 including a first transmission gear ii and a second transmission tooth ′, and the transmission gear 11 is subjected to哕e逵耥羞-同12, the first-value privately recognizes the driving of the motor (10) 4, and simultaneously drives the first transmission gear 12' and the second transmission gear = the dynamic gear 铪1 9 〇A ^ △ 丹% Move one brother two pass ^ rim 3' and (four) three drive teeth W 3 and drive - time gauge gear set - spindle member 2' is attached to the seat body, and the small diameter portion 2 1 - large diameter The portion 2 2, the large diameter object: a transmission gear 11 is simultaneously driven by the motor shaft 4. And the 8th M306118 1 is combined with the second wheel 3, which is sleeved on the small diameter portion 2 of the spindle member 2, and the tooth is two ==: from the 'the total stroke gear 3 is the system r_ two: turn Trigger 3 1 , q 1 1 is too another set of mouth

The total P is further set on the total stroke gear 3, and the total line member m rotates the trigger members 3 1 and 3 ii at the same time, and each of the triggers 11 respectively corresponds to a micro-motion opening 3 2 ' (4) Each of the micro-motions is controlled by 3 2 and controlled - the distance traveled by the total stroke. Part 2 Πί应装置 25' is set in the small diameter of the spindle member 2

When the sensor device 25 is activated, it continuously provides the signal to stop or run, and controls the positioning in the total stroke. In the present invention, the signal sense wire=yellow switch device includes a pivoting member 251, and the pivoting member 2 is inserted through each of the triggering members 31 and 311 to be engaged with the small diameter portion 2 of the main shaft. 1 'and another ring magnet 2 5 2 is sleeved on the 柩 4 2 5 1 and corresponding to a reed switch 2 5 3, and the ring magnet 2 5 2 is continuously triggered by magnetic induction when rotating The magnetic wave, off 2 5 3, provides a signal to control the motor to stop or run, and to control the positioning of the predetermined distance in the total stroke. Therefore, when the linear actuator is actuated, the first transmission gear 11 of the main shaft member 2 is simultaneously driven by the motor shaft 4, and when the stroke gear 3 passes the first transmission tooth W! After the differential transmission of the two transmission teeth μ 2 the special gear 13 and the reduction gear 14 , the rotation speed obtained by the total stroke gear 3 will be slower than that obtained by the spindle member 2, and 9 M306118 is also affected. The rotation speed of each of the triggering members 3 1 and 3 1 1 driven by the total stroke gear 3 is relatively slow, and the rotational speed of the pivoting member 2 51 and the annular magnet 2 5 2 driven by the spindle member 2 is relatively fast, and The travel of the total stroke can be provided simultaneously on the same motor shaft 4, as well as the step positioning setting in the total stroke. It can be seen from the description of the above embodiment that the embodiment uses a total stroke gear sleeved on a main shaft member, and the total stroke gear obtains a rotation speed slower than that obtained by the spindle member, when the spindle member is When the motor shaft is driven to rotate, two different speeds of power can be transmitted at the same time to control the timely operation of the motor, and the distance traveled by the main stroke of the body and the positioning of the total stroke can be controlled. The overall volume of the linear actuator is relatively reduced, and space utilization can be increased. Of course, there are still many examples of this creation, only the details change. Please refer to FIG. 4, which is a second embodiment of the present invention. The difference is that the signal sensing device 25 A is a Hall switch, which includes a pivoting member 251A, a magnet 252A, and a Hall. The member 253A, the pivoting member 2 5 1 A is disposed on the small diameter portion 2 1 A of the main shaft member 2 A, and the magnet 2 5 2 A is sleeved on the pivoting member 2 5 1A, and is spaced apart from the The element 2 5 3 A, when the signal sensing device 2 5 A is actuated, causes a Hall effect by the Hall element 2 5 3 A to change the internal line state, and continuously provides a signal to control the motor. Stop or run, and control the positioning of the predetermined distance in the total stroke. Therefore, the embodiment can still achieve the effects of the embodiment. Please refer to FIG. 5 , which is a third embodiment of the present invention, wherein the different 10 M 306 118 is that the signal sensing device 2 5 B is a photoelectric sensing device, which comprises a photo-electric sensing component 2 5 1 B, a The photo-actuator 2 2 2 B is disposed on the small-diameter portion 2 of the spindle member 2 B, and is spaced apart from the photo-sensing element 2 5 2 B, and the signal is sensed. When the device 2 5 B is actuated, the signal is continuously provided by the photoelectric effect generated to control the motor to stop or operate, and to control the positioning of the predetermined sequence in the total stroke. Therefore, the actual _ still has the effect of the embodiment. Please refer to FIG. 6 , which is a fourth embodiment of the present invention. The difference is that the signal sensing device 25 C is a variable resistor including a variable resistor 2 5 1 C 'the variable resistor. 2 5 worker c is disposed in the small diameter portion 2 1 C ' of the spindle member 2 C. The signal sensing device 2 5 c is continuously provided with a signal to control the motor to stop or run, and control the total stroke. The location of the predetermined distance. Therefore, the embodiment can still produce the effects of the embodiments. The above description of the embodiments is intended to be illustrative of the present invention and is not intended to limit the scope of the present invention. From the above detailed description, it will be apparent to those skilled in the art that the present invention can achieve the aforementioned objectives, which have met the requirements of the Patent Law and filed a patent application. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a first embodiment of the present invention. M306118 FIG. 2 is a combination side view of the first embodiment of the present invention. FIG. 3 is a second line of the first embodiment of the present creation. a - A partial cross-sectional view of the schematic diagram of the second embodiment of the second embodiment of the present invention, FIG. 5 is a perspective exploded view of the third embodiment of the present invention. FIG. Fig. 8 is a perspective view of a conventional linear actuator. Fig. 8 is a combination side view of a conventional linear actuator. [Main component symbol description] (Available part) Stroke control mechanism 7 Total stroke control mechanism 7 1 Reduction gear 711 Trigger 7 1 2, 7 1 convex part 7 1 3 micro switch 7 1 4 gear set 7 1 5 pinion 7 1 6 step stroke control mechanism 7 2 gear part 7 2 1 pivot piece 7 2 2 ring magnet 7 2 3 magnetic Reed switch 7 2 4 Seat 8 Timing gear 81 Transmission gear 8 2 Motor shaft 8 5 (this part) Seat 1 Transmission 1 0 First transmission gear 11 Second transmission gear 12 Third transmission gear 13 Timing gear Group 1 4 Spindle 2 Small diameter 2 1 12 M306118

Large diameter part 2 2 pivoting piece 2 5 1 magnetic head switch 2 5 3 trigger part 3 1 , 3 1 1 motor shaft 4

Spindle 2 A signal sensing 2 5 A magnet 2 5 2 A

Spindle 2 B Signal Sensor 2 5 B Photocell 2 5 2 B Spindle 2 C Signal Sensor 2 5 C Signal Sensor 2 5 Magnet 2 5 2 Total Travel Gear 3 Micro Switch 3 2

Small diameter part 2 1 A pivoting piece 2 5 1 A Hall element 2 5 3 A

Small diameter part 2 1 B Photoelectric sensing element 2 5 1 B Small diameter part 2 1 C Variable resistance 2 5 1 C 13

Claims (1)

M306118 IX. Patent application scope: 1. A linear actuator driving structure, which is driven by a motor rotating shaft mounted on a motor, and the linear actuator includes: a body having a transmission portion that is driven by the motor shaft; ~ two spindle members that are coupled to the base body, and the spindle member has - small control portion and - large diameter portion 'the large diameter portion is driven by the motor shaft at the same time as the transmission portion; the frog wheel is irritated, and the small diameter portion of the edge glaze is separated from the motor shaft At a suitable distance, the total stroke gear train is differentially driven by the transmission portion, and the total stroke gear is obtained: slower than the speed obtained by the spindle member; in addition, the triggering member of the two-phase combination is further set In the total stroke gear, the total stroke gear train rotates each of the hairpieces at the same time, and each of the _ hairpieces respectively corresponds to a _micro-switch, which is used for respectively pressing the micro-switches to control the travel distance of the control; The device is disposed in the small diameter portion of the main shaft member for supplying the signal device to the material, continuously providing a signal to control the motor to stop or operate, and controlling the positioning of the predetermined distance of the secondary head. = The linear actuator driving structure described in the scope of claim i, wherein the signal sensing device is a magnetic spring, and the pivoting member comprises a pivoting member that passes through each of the trigger members. The ring magnet is disposed on the small diameter portion of the 14 2 M306118 main shaft member, and another ring magnet is sleeved on the pivoting member and spaced apart from the magnetic pole switch, and the ring magnet is continuously magnetically induced when rotating The mode triggers the magnetic switch, and provides a number to control the motor to stop or run, and to control the positioning of the predetermined distance in the total stroke. The linear actuator driving structure according to the above application, wherein the signal sensing device is a Hall switch comprising a pivoting member, a magnet, a Hall element, and the pivoting The device is disposed on the small diameter portion of the spindle member, and the magnet is sleeved on the pivoting member and spaced apart from the corresponding Hall element. The signal sensing device is continuously provided with an nickname to control the motor when the device is activated. Stop or run, and control the positioning of the predetermined distance in the total stroke. 4. According to the scope of the patent scope! The linear actuator driving structure, wherein the signal sensing device is a photoelectric sensing device, which comprises a photo-electric sensing component and a photoelectric actuator, and the photoelectric actuator is disposed on the small-diameter portion of the spindle component. And corresponding to the photo-sensing element, the signal-sensing device continuously provides a signal to control and the motor to perform the 彳τ or the operation, and control the positioning of the predetermined distance in the total stroke. 5. The linear actuator driving structure according to the above aspect of the invention, wherein the sensing device is a variable resistor, comprising a variable resistor, the variable resistor being disposed on the spindle member The small-diameter portion is configured to continuously provide a signal to control the motor to stop or operate when the signal sensing device is activated, and to control the positioning of the predetermined distance of 15 M 306118 in the total stroke. 6. The linear actuator driving structure according to claim 1, wherein the transmission portion includes a first transmission # wheel and a second transmission gear, and the first transmission gear is driven by the motor shaft And driving the second transmission gear at the same time, and the second transmission gear drives a third transmission gear, and the third transmission gear drives a timing gear set, and the timing gear set drives the total stroke gear; The large diameter portion of the main shaft member is simultaneously driven by the motor shaft with the first transmission gear. 16