CN217627359U - Gear-driven push rod device - Google Patents
Gear-driven push rod device Download PDFInfo
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- CN217627359U CN217627359U CN202221590295.9U CN202221590295U CN217627359U CN 217627359 U CN217627359 U CN 217627359U CN 202221590295 U CN202221590295 U CN 202221590295U CN 217627359 U CN217627359 U CN 217627359U
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- friction plate
- push rod
- connecting column
- gear
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Abstract
The utility model provides a simple structure, low in production cost can provide a gear drive push rod device of self preservation function, the push rod comprises a push rod, the tooth row has been seted up on a side of push rod, and the rotatable drive gear that is provided with in one side of push rod, drive gear meshes with the tooth row mutually, synchronous rotation is provided with first friction disc on the drive gear, through the rotatable second friction disc that is provided with of second bearing in the frame, and first friction disc and second friction disc are laminated each other, are provided with in the frame and are used for driving second friction disc pivoted drive arrangement.
Description
Technical Field
The utility model relates to the field of mechanical equipment, in particular to include a gear drive push rod device.
Background
The mechanical push rod pushes or lifts articles in a rotary pushing mode, and is suitable for various fields of machinery, buildings and the like. The existing push rod and the driving device are in hard connection, if a machine table is blocked or other faults cause that an object to be pushed cannot be pushed out, if the object is hard, the object acts on the reaction force of the object on the push rod, and the push rod or the driving device is easily damaged.
SUMMERY OF THE UTILITY MODEL
Therefore, to foretell problem, the utility model provides a simple structure, low in production cost can provide a gear drive push rod device of self preservation protection function.
In order to realize the technical problem, the utility model discloses a gear drive push rod device, including the push rod, seted up the rack on one side of push rod, one side rotatable drive gear that is provided with of push rod, drive gear meshes with the rack mutually, synchronous rotation is provided with first friction disc on the drive gear, and rotatable second friction disc that is provided with through the second bearing in the frame, first friction disc and second friction disc are laminated each other, are provided with the drive arrangement who is used for driving the second friction disc pivoted in the frame.
The further improvement is that: and an adjusting device for changing the friction force is arranged between the first friction plate and the second friction plate.
The further improvement is that: the adjusting device comprises an adjusting nut, the driving gear is fixedly provided with a connecting column, the adjusting nut is sleeved on the connecting column and is in threaded connection with the connecting column, the first friction plate can slide along the axial direction of the connecting column and is arranged on the connecting column, the connecting column is sleeved with an elastic piece, one end of the elastic piece abuts against the adjusting nut, and the other end of the elastic piece abuts against the first friction plate.
The further improvement is that: a spline shaft is fixedly arranged on the first friction plate, and a spline hole is formed in the connecting column and used for the spline shaft to penetrate.
The further improvement is that: the adjusting nut is provided with a threaded through hole, a positioning screw rod penetrates through the threaded through hole, and the positioning screw rod can be abutted against the outer end face of the connecting column after penetrating through the threaded through hole.
The further improvement is that: still include a plurality of guide frames, guide frame fixed mounting is in outside frame, and the push rod can slide and wear to locate the guide frame.
The further improvement is that: the second friction plate is coaxially and fixedly provided with turbine teeth, the driving device is a motor, a driving shaft of the motor is fixedly provided with a worm, and the worm is in meshing transmission with the turbine teeth.
The further improvement is that: be provided with first micro-gap switch and second micro-gap switch on the guide frame, the both ends of push rod are provided with pushing head and limiting plate respectively, pushing head and limiting plate can trigger first micro-gap switch and second micro-gap switch respectively to avoid the push rod to break away from the guide frame, still including the singlechip that is used for the control motor, the singlechip is connected with first micro-gap switch and second micro-gap switch electricity.
By adopting the technical scheme, the beneficial effects of the utility model are that: 1. when the push rod touches large resistance, the first friction plate and the second friction plate slide relatively, so that the push rod and each transmission piece are protected.
2. The friction force between the first friction plate and the second friction plate is adjustable, so that the friction plate is suitable for more application scenes.
Drawings
Fig. 1 is a schematic structural view of a gear-driven push rod device according to an embodiment of the present invention.
Fig. 2 is a schematic view of the drive gear of fig. 1 in direction a.
Detailed Description
The present invention will now be further described with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1-2, the embodiment of the present invention discloses a gear-driven push rod device, including two guide frames 2, guide frame 2 is fixed to be installed in the frame (not shown in the figure), push rod 1 is worn to be equipped with on guide frame 2, tooth row 3 has been seted up on one side of push rod 1, rotatable drive gear 4 that is provided with through first bearing 10 in the frame, drive gear 4 meshes with tooth row 3 mutually, rotates when drive gear 4, can drive push rod 1 and slide in guide frame 2.
In order to avoid damage to the gear driving push rod device caused by the reaction force of the article, referring to fig. 2, a first friction plate 16 is synchronously and rotatably arranged on the driving gear 4, a second friction plate 17 is rotatably arranged on the rack through a second bearing 20, the first friction plate 16 and the second friction plate 17 are coaxially arranged and are mutually attached, and a motor 21 for driving the second friction plate 17 to rotate is arranged on the rack.
When the motor 21 drives the second friction plate 17 to rotate, and acts on the friction force between the second friction plate 17 and the first friction plate 16, the second friction plate 17 can drive the first friction plate 16 to rotate synchronously, and further drive the push rod 1 to slide.
When the resistance received by the push rod 1 is larger than the friction force between the second friction plate 17 and the first friction plate 16, the first friction plate 16 and the second friction plate 17 slide relatively, so that the push rod 1 and various transmission parts are protected.
Specifically, the second friction plate 17 is coaxially and fixedly provided with turbine teeth 18, a driving shaft of the motor 21 is fixedly provided with a worm 19, and the worm 19 and the turbine teeth 18 are in meshing transmission to form worm and gear transmission.
In order to adjust the friction force between the second friction plate 17 and the first friction plate 16 conveniently, a spline shaft 15 is coaxially and fixedly arranged on the first friction plate 16, the driving gear 4 is fixedly provided with a connecting column 11, the connecting column 11 is arranged on the first bearing 10, a spline hole is formed in the connecting column 11 for the spline shaft 15 to penetrate, an adjusting nut 13 is sleeved on the connecting column 11 in a threaded fit manner, the position of the adjusting nut 13 on the connecting column 11 in the axial direction can be adjusted by rotating the adjusting nut 13, a spring 12 is sleeved on the connecting column 11, one end of the spring 12 abuts against the adjusting nut 13, and the other end of the spring 12 abuts against the first friction plate 16.
The position of the adjusting nut 13 in the axial direction of the connecting column 11 is changed by rotating the adjusting nut 13, so that the elastic force of the spring 12 is changed, and the pressure between the first friction plate 16 and the second friction plate 17 is changed, namely the friction force between the first friction plate 16 and the second friction plate 17 is changed.
In order to avoid the change of the position of the adjusting nut 13 caused by the vibration during the operation, the adjusting nut 13 is provided with a threaded through hole, a positioning screw 14 penetrates through the threaded through hole, and the positioning screw 14 can be abutted against the outer end face of the connecting column 11 after penetrating through the threaded through hole. After the positioning screw 14 is locked, the position of the adjusting nut 13 can be locked, and the position of the adjusting nut is prevented from being changed.
For convenience of control, be provided with first micro-gap switch 5 and second micro-gap switch 6 on the guide frame 2, in order to avoid push rod 1 to break away from guide frame 2, the both ends of push rod 1 are provided with pushing head 8 and limiting plate 7 respectively, the cross section of pushing head 8 and limiting plate 7 is greater than the cross section of push rod 1 to can take place to support with guide frame 2, thereby avoid push rod 1 to break away from guide frame 2. A single chip microcomputer for controlling the motor 21 is arranged on the frame and is electrically connected with the first microswitch 5 and the second microswitch 6.
After the push rod 1 extends out, when the limiting plate 7 touches the second microswitch 6, the second microswitch 6 sends a signal to the single chip microcomputer, the single chip microcomputer controls the motor 21 to change the rotating direction, the push rod 1 is driven to change the sliding direction to retract until the push head 8 touches the first microswitch 5, one-time pushing is completed, and the next working instruction is waited to be carried out again.
In order to enable the push rod 1 to slide more stably in the guide frame 2, a plurality of sliding grooves 9 are axially formed in the push rod 1, and sliding blocks capable of sliding in the sliding grooves 9 are arranged on the guide frame 2.
Modifications and variations of the present invention are within the scope of the claims and are not limited by the disclosure of the embodiments.
Claims (8)
1. The utility model provides a gear drive push rod device, includes frame, push rod, the tooth row has been seted up on a side of push rod, and one side of push rod is rotatable to be provided with drive gear, drive gear meshes its characterized in that with the tooth row mutually: the driving gear is synchronously and rotatably provided with a first friction plate, the rack is rotatably provided with a second friction plate, the first friction plate and the second friction plate are mutually attached, and the rack is provided with a driving device for driving the second friction plate to rotate.
2. The gear driven pusher apparatus of claim 1, wherein: and an adjusting device for changing the friction force is arranged between the first friction plate and the second friction plate.
3. The gear driven pusher apparatus of claim 2, wherein: the adjusting device comprises an adjusting nut, a connecting column is coaxially and fixedly arranged on the driving gear, the adjusting nut is sleeved on the connecting column and is in threaded connection with the connecting column, the first friction plate can slide along the axial direction of the connecting column and is arranged on the connecting column, an elastic piece is sleeved on the connecting column, one end of the elastic piece abuts against the adjusting nut, and the other end of the elastic piece abuts against the first friction plate.
4. The gear driven pusher apparatus of claim 3, wherein: a spline shaft is fixedly arranged on the first friction plate, and a spline hole is formed in the connecting column and used for the spline shaft to penetrate.
5. The gear driven pusher arrangement of claim 3, wherein: the adjusting nut is provided with a threaded through hole, a positioning screw rod penetrates through the threaded through hole, and the positioning screw rod can be abutted against the outer end face of the connecting column after penetrating through the threaded through hole.
6. The gear driven pusher apparatus of claim 1, wherein: still include a plurality of guide frames, guide frame fixed mounting is in the frame, and the push rod can slide and wear to locate the guide frame.
7. The gear driven pusher arrangement of claim 1, wherein: the second friction plate is coaxially and fixedly provided with turbine teeth, the driving device is a motor, a worm is fixedly arranged on a driving shaft of the motor, and the worm and the turbine teeth are in meshing transmission.
8. The gear driven pusher apparatus of claim 6, wherein: be provided with first micro-gap switch and second micro-gap switch on the guide frame, the both ends of push rod are provided with pushing head and limiting plate respectively, pushing head and limiting plate can trigger first micro-gap switch and second micro-gap switch respectively, still including the singlechip that is used for control motor, the singlechip is connected with first micro-gap switch and second micro-gap switch electricity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221590295.9U CN217627359U (en) | 2022-06-16 | 2022-06-16 | Gear-driven push rod device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221590295.9U CN217627359U (en) | 2022-06-16 | 2022-06-16 | Gear-driven push rod device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217627359U true CN217627359U (en) | 2022-10-21 |
Family
ID=83628726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221590295.9U Active CN217627359U (en) | 2022-06-16 | 2022-06-16 | Gear-driven push rod device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217627359U (en) |
-
2022
- 2022-06-16 CN CN202221590295.9U patent/CN217627359U/en active Active
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