CN113178992A - Multi-push-rod device with detachable motor - Google Patents

Abstract

The invention relates to the field of push rods, in particular to a multi-push-rod device with a detachable motor. When the screw rod is driven to stretch, the screw nut can be driven to stretch and retract through stretching and retracting to realize the function of the push rod, meanwhile, every two push rod assemblies realize transmission through a transmission shaft device, and a rotating shaft of a driving motor is in transmission connection with one end of an external bidirectional shaft through a gear set; the synchronous driving of the push rod assemblies through the same driving motor assembly can be realized, and the synchronous driving device has the advantages of simplicity in control, good reliability, simplicity in wiring, low use cost and the like compared with a single-push-rod single-driving-motor mode. In addition, in the application, the driving motor assembly can be detachably connected with the push rod assembly, so that different driving motor assemblies can be replaced to meet the torque requirement completely according to the actual requirement of the actual number of the push rod assemblies; and the installation and the dismantlement between driving motor subassembly and the push rod subassembly are very convenient, can realize quick assembly disassembly, have significantly reduced and delayed the time of normal work.

Description

Multi-push-rod device with detachable motor

Technical Field

The invention relates to the field of push rods, in particular to a multi-push-rod device with a detachable motor.

Background

The existing electric push rods are mainly in a single-push-rod single-drive-motor mode, namely, each push rod is provided with a drive motor, and the drive force of the drive motor only drives the push rods to stretch. When the push rod is used in a place needing simultaneous synchronous driving of multiple points, a plurality of push rods with driving are needed, the mode needs to synchronously control the operation of each driving motor, the control is complex, the reliability is poor, the control circuit of each driving motor is difficult to arrange, and the use cost is high. And the existing motor is generally integrated with the push rod, so that the output torque of the motor is difficult to adjust to meet different customers.

Disclosure of Invention

In order to solve the above problems, the present invention provides a multi-push rod device with detachable motors, wherein each push rod assembly is synchronously driven by the same driving motor assembly, and the driving motor assembly can be detachably connected to the push rod assemblies, so that different driving motor assemblies can be replaced to meet the torque requirement according to the actual requirement of the actual number of push rod assemblies.

In order to achieve the purpose, the invention adopts the technical scheme that: a multi-push rod device with a detachable motor comprises a transmission shaft device, a driving motor component and a plurality of push rod components which are arranged in sequence; each two push rod assemblies realize transmission through a transmission shaft device, and the driving motor assembly is in driving connection with the push rod assembly positioned at any one tail end;

each push rod component comprises a reversing gear box, a telescopic outer barrel, an external bidirectional shaft, a telescopic driving screw rod, a telescopic driving screw nut and an inner barrel, the reversing gear box is fixedly connected with one end of the telescopic outer barrel, the external bidirectional shaft is rotatably connected to the reversing gear box, the central line of the external bidirectional shaft is perpendicular to the central line of the telescopic outer barrel, two ends of the external bidirectional shaft extend out of the reversing gear box, and a first bevel gear positioned in the reversing gear box is fixedly sleeved on the external bidirectional shaft; one end of a telescopic driving screw rod is fixedly connected with a second bevel gear in the reversing gear box, the other end of the telescopic driving screw rod extends into the telescopic outer barrel, the telescopic driving screw rod is in threaded connection with a telescopic driving nut, and an inner barrel in the telescopic outer barrel is fixedly connected with the telescopic driving nut;

the driving motor assembly comprises a driving motor and a driving gear set, wherein the driving gear set can be detachably arranged on the outer wall of the reversing gear box, a rotating shaft of the driving motor is connected with one end of an external bidirectional shaft in a transmission mode through a gear set, and the gear set can be detachably connected with the external bidirectional shaft of the push rod assembly at any one end in a transmission mode.

Furthermore, the driving gear set comprises a driving gear box, a joint and a fixed support, and the driving gear box is detachably fixed on the outer side of the reversing gear box through the fixed support; an output shaft and a plurality of reduction gears which are meshed in sequence are arranged in the driving gear box, the rotating shaft of the driving motor extends into the driving gear box and is connected with the first reduction gear in a transmission mode, the output shaft is connected with the last reduction gear in a transmission mode, the output shaft extends out of the driving gear box and is connected with one end of the connector in a detachable mode, and the other end of the connector is connected with one end of the external bidirectional shaft in a detachable mode.

Further, the transmission shaft device comprises a first transmission shaft, a first universal joint and a second universal joint, wherein the two ends of the first transmission shaft are connected with the first universal joint, the second universal joint is arranged on two external bidirectional shafts which are close to each other, and the two ends of the first transmission shaft are respectively movably connected with the second universal joint which is positioned on the external bidirectional shafts through the first universal joint.

And the two second transmission shafts are in transmission connection with the first universal joints at the two ends of the first transmission shaft respectively through the third universal joints, and the two second transmission shafts are in transmission connection with the second universal joints on the two adjacent external bidirectional shafts respectively through the third universal joints.

Furthermore, a thrust bearing is arranged in the reversing gear box, and the telescopic driving screw rod is rotatably connected into the reversing gear box through the thrust bearing.

Further, the inner tube is kept away from switching-over gear box one end and is provided with down the mount pad, and lower mount pad one end is rotated and is connected in the inner tube, deviates from the first end of inner tube on the mount pad down and is equipped with down the mounting hole.

Furthermore, the reversing gear case 1 is provided with an upper mounting seat at one end deviating from the telescopic outer cylinder, an upper mounting hole is formed in the upper mounting seat, one end of the upper mounting seat is fixedly connected with the reversing gear case, and the upper mounting hole is located at one end, away from the reversing gear case, of the upper mounting seat.

Furthermore, an upper limit microswitch is arranged on the inner wall of the telescopic outer barrel, which is far away from one end of the reversing gear box, and a lower limit microswitch is arranged on the inner wall of the telescopic outer barrel, which is close to one end of the reversing gear box.

Further, the push rod assembly further comprises a check nut sleeved on the telescopic driving screw and located on one side of the telescopic driving screw, and a check gasket 2 fixedly sleeved on the telescopic driving screw and located on one side of the check nut away from the telescopic driving screw, wherein the check gasket is of an annular structure, and a plurality of clamping teeth are integrally formed along the circumferential direction of the check gasket; the surface of the locknut close to the lockwasher 2 is provided with a latch assembling groove 11 corresponding to the latch 21; wherein latch 21 card on lock washer 2 is established in latch cooperation groove 11 on locknut 1, locknut 1 is rotatory, and the inner wall of latch cooperation groove 11 supports and ends latch 21 at lock washer 2 and realizes spacingly.

The invention has the beneficial effects that: when the telescopic driving screw rod rotates, the inner cylinder can be driven to stretch by the telescopic driving screw nut, so that the function of push rods is realized, meanwhile, transmission is realized between every two push rod assemblies through a transmission shaft device, a rotating shaft of a driving motor is in transmission connection with one end of an external bidirectional shaft through a gear set, and the gear set is in detachable transmission with the external bidirectional shaft of the push rod assembly positioned at any one tail end; the synchronous driving of the push rod assemblies through the same driving motor assembly can be realized, and the synchronous driving device has the advantages of simplicity in control, good reliability, simplicity in wiring, low use cost and the like compared with a single-push-rod single-driving-motor mode.

In the application, a rotating shaft of the driving motor is in transmission connection with one end of an external bidirectional shaft through a gear set, and the gear set is in detachable transmission with the external bidirectional shaft of the push rod assembly positioned at any tail end, namely the driving motor assembly can be detachably connected with the push rod assembly, so that different driving motor assemblies can be replaced to meet the torque requirement according to the actual requirement of the actual number of the push rod assemblies; and the installation and the dismantlement between driving motor subassembly and the push rod subassembly are very convenient, can realize quick assembly disassembly, have significantly reduced and delayed the time of normal work.

Drawings

Fig. 1 is a schematic structural view of a multi-pusher apparatus with a detachable motor.

Fig. 2 is an enlarged schematic view of a portion a in fig. 1.

Fig. 3 is an enlarged schematic view of B in fig. 1.

Fig. 4 is a schematic structural view of the assembled push rod assembly and the driving motor assembly.

Fig. 5 is a sectional view of the push rod assembly assembled with the drive motor assembly.

Fig. 6 is a schematic structural view of the check washer.

Fig. 7 is a schematic structural view of the locknut.

The reference numbers illustrate: the device comprises a push rod assembly 1, a driving motor assembly 2, a driving gear box 21, a driving motor 22, an output shaft 23, a fixed support 24, a joint 25, a reduction gear 26, a first transmission shaft 3, a first universal joint 31, a second universal joint 10, a reversing gear box 11, a telescopic outer cylinder 12, an external bidirectional shaft 13, a telescopic driving screw 14, a telescopic driving screw 15, an inner cylinder 16, a first bevel gear 17, a second bevel gear 18, a thrust bearing 19, a locknut 101, a latch assembling groove 1011, a lockwasher 102, a latch 1021, an upper mounting seat 111, an upper mounting hole 1111, a lower mounting seat 110, a lower mounting hole 1101, an upper limit microswitch 121, a lower limit microswitch 122, a second transmission shaft 4 and a third universal joint 41.

Detailed Description

Referring to fig. 1-7, the present invention relates to a multi-push rod device with detachable motors, which comprises a transmission shaft device, a driving motor assembly 2, and a plurality of push rod assemblies 1 arranged in sequence; each two push rod assemblies 1 realize transmission through a transmission shaft device, and the driving motor assembly 2 is in driving connection with the push rod assembly 1 positioned at any one end; each push rod component 1 comprises a reversing gear box 11, a telescopic outer cylinder 12, an external bidirectional shaft 13, a telescopic driving screw rod 14, a telescopic driving screw nut 15 and an inner cylinder 16, the reversing gear box 11 is fixedly connected with one end of the telescopic outer cylinder 12, the external bidirectional shaft 13 is rotatably connected to the reversing gear box 11, the central line of the external bidirectional shaft 13 is perpendicular to the central line of the telescopic outer cylinder 12, two ends of the external bidirectional shaft 13 extend out of the reversing gear box 11, and a first bevel gear 17 positioned in the reversing gear box 11 is fixedly sleeved on the external bidirectional shaft 13; one end of a telescopic driving screw rod 14 is fixedly connected with a second bevel gear 18 positioned in the reversing gear box 11, the other end of the telescopic driving screw rod 14 extends into the telescopic outer cylinder 12, the telescopic driving screw rod 14 is in threaded connection with a telescopic driving screw nut 15, and an inner cylinder 16 positioned in the telescopic outer cylinder 12 is fixedly connected with the telescopic driving screw nut 15; the driving motor component 2 comprises a driving motor 22 and a driving gear set, wherein the driving gear set is detachably arranged on the outer wall of the reversing gear box 11, a rotating shaft of the driving motor 22 is in transmission connection with one end of the external bidirectional shaft 13 through a gear set, and the gear set is in detachable transmission with the external bidirectional shaft 13 of the push rod component 1 positioned at any end.

When the telescopic driving screw rod 14 rotates, the inner cylinder 16 can be driven to stretch by the telescopic driving screw nut 15, so that the function of push rods is realized, meanwhile, transmission is realized between every two push rod assemblies 1 through a transmission shaft device, the rotating shaft of the driving motor 22 is in transmission connection with one end of the external bidirectional shaft 13 through a gear set, and the gear set is in detachable transmission with the external bidirectional shaft 13 of the push rod assembly 1 positioned at any one tail end; the synchronous driving of all push rod assemblies 1 through the same driving motor assembly 2 can be realized, and compared with a single push rod single driving motor 22 mode, the synchronous driving device has the advantages of simplicity in control, good reliability, simplicity in wiring, low use cost and the like.

In the application, the rotating shaft of the driving motor 22 is in transmission connection with one end of the external bidirectional shaft 13 through a gear set, and the gear set is in detachable transmission with the external bidirectional shaft 13 of the push rod assembly 1 located at any one end, that is, the driving motor assembly 2 can be detachably connected with the push rod assembly 1, so that different driving motor assemblies 2 can be replaced to meet the torque requirement completely according to the actual requirement of the number of the actual push rod assemblies 1; and the installation and the dismantlement between driving motor subassembly 2 and the push rod subassembly 1 are very convenient, can realize quick assembly disassembly, have significantly reduced and delayed the time of normal work.

Further, the driving gear set comprises a driving gear box 21, a joint 25 and a fixing bracket 24, wherein the driving gear box 21 is detachably fixed on the outer side of the reversing gear box 11 through the fixing bracket 24; an output shaft 23 and a plurality of reduction gears 26 which are meshed in sequence are arranged in the driving gear box 21, the rotating shaft of the driving motor 22 extends into the driving gear box 21 and is in transmission connection with the first reduction gear 26, the output shaft 23 is in transmission connection with the last reduction gear 26, the output shaft 23 extends out of the driving gear box 21 and is detachably connected with one end of the joint 25, and the other end of the joint 25 is detachably connected with one end of the external bidirectional shaft 13.

When two reduction gears 26 are provided, one reduction gear 26 is fixedly arranged on the rotating shaft of the driving motor 22 and the other reduction gear 26 is fixedly arranged on the output shaft 23, when three or more reduction gears 26 are provided, one reduction gear 26 is fixedly arranged on the rotating shaft of the driving motor 22 and the other reduction gear 26 is fixedly arranged on the output shaft 23, and the rest reduction gears 26 are rotatably connected to the inner wall of the reversing gear box 11 through the rotating shaft. The reduction gear 269 reduces the extension and retraction speed of the inner drum 16, thereby increasing its load capacity.

In the embodiment, the outer sides of the two ends of the joint 25 are provided with fixing holes, the outer side wall of the output shaft 23 is provided with a first assembling hole corresponding to the fixing hole, and the outer side wall of one end of the external bidirectional shaft 13 is provided with a second fixing hole corresponding to the fixing hole; when assembling, the output shaft 23 is directly inserted into one end of the joint 25, and meanwhile, a bolt penetrates through a fixing hole and a first assembling hole in the joint 25; one end of the external bidirectional shaft 13 is also inserted into the other end of the joint 25, and a bolt penetrates through a fixing hole and a second assembling hole in the joint 25; the installation and the dismantlement between the driving motor subassembly 2 and the push rod subassembly 1 are very convenient, can realize quick assembly disassembly, have significantly reduced and delayed the time of normal work.

Further, the transmission shaft device comprises a first transmission shaft 3, a first universal joint 31 and a second universal joint 10, wherein the two ends of the first transmission shaft 3 are connected with the first universal joint 31, the second universal joint 10 is arranged on two external bidirectional shafts 13 which are close to each other, and the two ends of the first transmission shaft 3 are movably connected with the second universal joint 10 which is arranged on the external bidirectional shafts 13 through the first universal joint 31. In this embodiment, in order to adapt to various working environments of the multi-rod device, two ends of the first transmission shaft 3 are movably connected to the second universal joint 10 on the external bidirectional shaft 13 through the first universal joint 31. Therefore, the push rod components 1 are synchronously driven by the same driving motor component 2, and the direction of each push rod component 1 is not required to be consistent and can be randomly adjusted according to the actual use condition,

further, the two-shaft transmission device further comprises two second transmission shafts 4, wherein third universal joints 41 are respectively arranged at two ends of each second transmission shaft 4, the two second transmission shafts 4 are respectively in transmission connection with the first universal joints 31 at two ends of the first transmission shaft 3 through the third universal joints 41, and the two second transmission shafts 4 are respectively in transmission connection with the second universal joints 10 on the two adjacent external bidirectional shafts 13 through the third universal joints. Meanwhile, in the embodiment, the user can adjust the distance between the adjacent push rod assemblies 1 while increasing the flexibility of the orientation angle of the push rod assemblies 1 by arranging the second transmission shaft 4.

Further, a thrust bearing 19 is arranged in the reversing gear box 11, and the telescopic driving screw rod 14 is rotatably connected in the reversing gear box 11 through the thrust bearing 19. The telescopic driving screw rod 14 can rotate more smoothly by arranging the thrust bearing 19, and when the connecting shaft push rod structure is used as a push rod, the thrust bearing 19 can also play a supporting role for the telescopic driving screw rod 14, so that the abrasion of the switching position during long-term use is avoided.

Further, a lower mounting base 110 is arranged at one end of the inner cylinder 16, which is far away from the reversing gear box 11, one end of the lower mounting base 110 is rotatably connected to the inner cylinder 16, and a lower mounting hole 1101 is arranged at a first end, which is far away from the inner cylinder 16, of the lower mounting base 110. The lower mounting seat 110 is provided to facilitate the connection of one end of the connecting shaft push rod structure departing from the reversing gear box 11 with other components.

Further, the reversing gear box 11 deviates from the 12 one ends of flexible urceolus and is provided with mount pad 111, goes up to be equipped with on the mount pad 111 mounting hole 1111, goes up mount pad 111 one end and 11 fixed connection of reversing gear box, goes up mounting hole 1111 and is located the mount pad 111 one end that deviates from the reversing gear box 11. The installation seat 111 is arranged to facilitate the switching of one end of the reversing gear box 11 with a multi-push rod structure with other components.

Further, an upper limit microswitch 121 is arranged on the inner wall of the telescopic outer cylinder 12 at the end far away from the reversing gear box 11, and a lower limit microswitch 122 is arranged on the inner wall of the telescopic outer cylinder 12 at the end near to the reversing gear box 11.

Further, the push rod assembly 1 further comprises a locknut 101 sleeved on the telescopic driving screw 14 and located on one side of the telescopic driving screw 15, and a lockwasher 102 fixedly sleeved on the telescopic driving screw 14 and located on one side of the locknut 101 away from the telescopic driving screw 15, wherein the lockwasher 102 is of an annular structure, and a plurality of clamping teeth 1021 are integrally formed along the circumferential direction of the lockwasher 102; the surface of the locknut 101 close to the lockwasher 102 is provided with a latch assembling groove 1011 corresponding to the latch 1021; the latch 1021 on the anti-loose gasket 102 is clamped in the latch assembling groove 1011 on the anti-loose nut 101, the anti-loose nut 101 rotates, and the inner wall of the latch assembling groove 1011 abuts against the latch 1021 on the anti-loose gasket 102 to realize limiting.

In the patent, innovative improvement is made on the structure of the locknut 101, firstly, a lockwasher 102 is added, the lockwasher 102 is of an annular structure, and a plurality of latch 1021 are integrally formed along the circumferential direction of the lockwasher 102; the surface of the locknut 101 is provided with a latch assembling groove 1011 corresponding to the latch 1021; that is, if the load is too large, the locknut 101 is loosened and relatively rotates with respect to the telescopic driving screw 14 (normally, the locknut 101 should be relatively stationary with respect to the telescopic driving screw 14), and moves along the length direction of the telescopic driving screw 14; however, since the latch 1021 of the anti-loose washer 102 is fitted in the latch fitting groove 1011 of the anti-loose nut 101, when the anti-loose nut 101 rotates, the inner wall of the latch fitting groove 1011 will abut against the corresponding latch 1021, so as to limit the anti-loose nut 101 from rotating and achieve permanent anti-loose. Therefore, the locking nut 101 can be effectively prevented from being loosened backwards, and the structure is loosened.

The above embodiments are merely illustrative of the preferred embodiments of the present invention, and not restrictive, and various changes and modifications to the technical solutions of the present invention may be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are intended to fall within the scope of the present invention defined by the appended claims.

Claims (9)

1. The utility model provides a many push rod devices of motor detachable which characterized in that: comprises a transmission shaft device, a driving motor component and a plurality of push rod components which are arranged in sequence; each two push rod assemblies realize transmission through a transmission shaft device, and the driving motor assembly is in driving connection with the push rod assembly positioned at any one tail end; each push rod component comprises a reversing gear box, a telescopic outer barrel, an external bidirectional shaft, a telescopic driving screw rod, a telescopic driving screw nut and an inner barrel, the reversing gear box is fixedly connected with one end of the telescopic outer barrel, the external bidirectional shaft is rotatably connected to the reversing gear box, the central line of the external bidirectional shaft is perpendicular to the central line of the telescopic outer barrel, two ends of the external bidirectional shaft extend out of the reversing gear box, and a first bevel gear positioned in the reversing gear box is fixedly sleeved on the external bidirectional shaft; one end of a telescopic driving screw rod is fixedly connected with a second bevel gear in the reversing gear box, the other end of the telescopic driving screw rod extends into the telescopic outer barrel, the telescopic driving screw rod is in threaded connection with a telescopic driving nut, and an inner barrel in the telescopic outer barrel is fixedly connected with the telescopic driving nut; the driving motor assembly comprises a driving motor and a driving gear set, wherein the driving gear set can be detachably arranged on the outer wall of the reversing gear box, a rotating shaft of the driving motor is connected with one end of an external bidirectional shaft in a transmission mode through a gear set, and the gear set can be detachably connected with the external bidirectional shaft of the push rod assembly at any one end in a transmission mode.

2. The motor-detachable multi-pusher apparatus of claim 1, wherein: the driving gear set comprises a driving gear box, a joint and a fixed support, and the driving gear box is detachably fixed on the outer side of the reversing gear box through the fixed support; an output shaft and a plurality of reduction gears which are meshed in sequence are arranged in the driving gear box, the rotating shaft of the driving motor extends into the driving gear box and is connected with the first reduction gear in a transmission mode, the output shaft is connected with the last reduction gear in a transmission mode, the output shaft extends out of the driving gear box and is connected with one end of the connector in a detachable mode, and the other end of the connector is connected with one end of the external bidirectional shaft in a detachable mode.

3. The motor-detachable multi-pusher apparatus of claim 1, wherein: the transmission shaft device comprises a first transmission shaft, a first universal joint and a second universal joint, wherein the two ends of the first transmission shaft are connected with the first universal joint, the second universal joint is arranged on two external bidirectional shafts which are close to each other, and the two ends of the first transmission shaft are respectively movably connected with the second universal joint which is positioned on the external bidirectional shafts through the first universal joint.

4. A motor-removable multi-pusher apparatus as set forth in claim 3, wherein: the two ends of the second transmission shafts are respectively provided with a third universal joint, wherein the two second transmission shafts are respectively in transmission connection with the first universal joints at the two ends of the first transmission shaft through the third universal joints, and the two second transmission shafts are respectively in transmission connection with the second universal joints on the two adjacent external bidirectional shafts through the third universal joints.

5. The motor-detachable multi-pusher apparatus of claim 1, wherein: a thrust bearing is arranged in the reversing gear box, and the telescopic driving screw rod is rotatably connected in the reversing gear box through the thrust bearing.

6. The motor-detachable multi-pusher apparatus of claim 1, wherein: one end of the inner cylinder, which is far away from the reversing gear box, is provided with a lower mounting seat, one end of the lower mounting seat is rotatably connected to the inner cylinder, and a lower mounting hole is formed in the lower mounting seat and deviates from the first end of the inner cylinder.

7. The motor-detachable multi-pusher apparatus of claim 1, wherein: the reversing gear case 1 deviates from flexible urceolus one end and is provided with the mount pad, goes up to be equipped with the mounting hole on the mount pad, goes up mount pad one end and reversing gear case fixed connection, goes up the mounting hole and is located the mount pad and back to reversing gear case one end.

8. The motor-detachable multi-pusher apparatus of claim 1, wherein: an upper limit microswitch is arranged on the inner wall of one end, far away from the reversing gear box, of the telescopic outer barrel, and a lower limit microswitch is arranged on the inner wall of one end, close to the reversing gear box, of the telescopic outer barrel.

9. The motor-detachable multi-pusher apparatus of claim 1, wherein: the push rod assembly further comprises a check nut sleeved on the telescopic driving screw rod and located on one side of the telescopic driving screw nut, and a check gasket fixedly sleeved on the telescopic driving screw rod and located on one side, far away from the telescopic driving screw nut, of the check nut, wherein the check gasket is of an annular structure, and a plurality of clamping teeth are integrally formed along the circumferential direction of the check gasket; the surface of the locknut close to the lockwasher is provided with a latch assembling groove corresponding to the latch; wherein the latch card on the lock washer is established in the latch cooperation inslot on locknut, locknut is rotatory, and the inner wall of latch cooperation groove 11 supports the latch at the lock washer and realizes spacingly.

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