CN216131332U - Lead screw transmission device - Google Patents
Lead screw transmission device Download PDFInfo
- Publication number
- CN216131332U CN216131332U CN202122067533.XU CN202122067533U CN216131332U CN 216131332 U CN216131332 U CN 216131332U CN 202122067533 U CN202122067533 U CN 202122067533U CN 216131332 U CN216131332 U CN 216131332U
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- fixing frame
- screw rod
- lead screw
- screw
- rod seat
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Abstract
A lead screw transmission device relates to the field of transmission devices. In the device, two ends of a screw rod are respectively clamped and fixedly arranged on a first screw rod seat and a second screw rod seat, and the first screw rod seat and the second screw rod seat are fixedly arranged on a saddle; a tension pulley is arranged at the rotating shaft end of the driving device, a gear disc is sleeved on the nut, the tension pulley is in transmission connection with the gear disc through a synchronous belt, a connecting hole is formed in the nut, and the screw rod is rotatably connected with the connecting hole; the guide rail is fixedly arranged on the saddle, a first fixing frame and a second fixing frame are respectively arranged at two ends of the driving device, the first fixing frame and the second fixing frame are respectively erected on the sliding block, and the sliding block is connected with the sliding rail; the side wall of the first fixing frame is fixedly provided with a protection plate, and the protection plate is connected with the side wall of the second fixing frame. The device drives the screw to rotate through the servo motor, avoids the movement of the lead screw in the traditional lead screw transmission process, not only realizes accurate movement, but also reduces the damage of the lead screw transmission to the lead screw.
Description
Technical Field
The utility model relates to the field of transmission devices, in particular to a lead screw transmission device.
Background
The screw rod is a device for converting rotary motion into linear motion or converting linear motion into rotary motion. As a drive for machine tools, a spindle drive has an irreplaceable effect. Traditional lead screw transmission device structure is complicated, and installation and maintenance are loaded down with trivial details, and precision and stability can not all be high to under the heavy load condition of long distance, the extreme speed of should considering leads to the lead screw crooked easily and arouses the lead screw shake. And the rack and pinion transmission, if the processing installation accuracy is poor, the transmission noise is big, and wearing and tearing are big, need frequent maintenance or change, and life is low, has reduced production efficiency, has improved manufacturing cost.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems that a lead screw transmission device is complex in structure, complex to install and maintain, poor in precision and stability, and easy to bend a lead screw and shake the lead screw due to the lead screw under the condition of long distance and heavy load, the utility model adopts the following technical scheme:
a lead screw transmission device comprises a lead screw, a nut, a driving device and a sliding device; the sliding device comprises a saddle, a sliding rail and a sliding block, two ends of the screw rod are respectively clamped and fixedly arranged on the first screw rod seat and the second screw rod seat, and the first screw rod seat and the second screw rod seat are fixedly arranged on the saddle; a tension pulley is arranged at the rotating shaft end of the driving device, a gear disc is sleeved on the nut, the tension pulley is in transmission connection with the gear disc through a synchronous belt, a connecting hole is formed in the nut, and the screw rod is rotatably connected with the connecting hole; the guide rail is fixedly arranged on the sliding saddle, a first fixing frame and a second fixing frame are respectively arranged at two ends of the driving device, the first fixing frame and the second fixing frame are respectively erected on the sliding block, and the sliding block is connected with the sliding rail; and a protection plate is fixedly arranged on the side wall of the first fixing frame and connected with the side wall of the second fixing frame.
Specifically, the screw rod is sleeved with a third fixing frame, the top end of the fixing frame is connected with the driving device, and the side wall of the fixing frame is connected with the protection plate.
Specifically, the driving device is a servo motor.
In summary, the apparatus of the present invention has the following advantages: the screw is driven to rotate through the servo motor, the movement of the lead screw in the traditional lead screw transmission process is avoided, so that the accurate movement is realized, the damage of the lead screw transmission to the lead screw is reduced, and the inaccurate transmission influence caused by the lead screw shaking is reduced.
Drawings
FIG. 1 is a schematic view of a lead screw drive;
FIG. 2 is a schematic view A of a partial structure of a lead screw drive;
FIG. 3 is a partial schematic view B of a lead screw drive;
reference numerals: 1, a transmission track; 2, a transmission device;
101, a slide rail; 102 a saddle; 103 a slide block;
201 a housing; 202 servo motor; 203 a second fixing frame; 204, a screw rod; 205 synchronous belts; 206 a screw nut; 207 a first mount; 208 a second screw base; 209 a first screw base; 210 protective plates; 211 gear wheel disk.
Detailed Description
The present invention is further described below with reference to fig. 1 to 3.
A lead screw transmission device comprises a lead screw 204, a nut 206, a servo motor 202 and a sliding device. The sliding device comprises a saddle 102, a sliding rail 101 and a sliding block 103, two ends of the screw 204 are respectively clamped and fixedly arranged on a first screw rod seat 209 and a second screw rod seat 208, and the first screw rod seat 209 and the second screw rod seat 208 are fixedly arranged on the saddle 102; a tension pulley is arranged at the rotating shaft end of the driving device, a gear disc 211 is sleeved on the nut 206, the tension pulley is in transmission connection with the gear disc 211 through a synchronous belt 205, a connecting hole is formed in the nut 206, and the screw 204 is rotatably connected with the connecting hole; the guide rail is fixedly arranged on the sliding saddle 102, a first fixing frame 207 and a second fixing frame 203 are respectively arranged at two ends of the driving device, the first fixing frame 207 and the second fixing frame 203 are respectively erected on the sliding block 103, and the sliding block 103 is connected with the sliding rail 101; the side wall of the first fixing frame 207 is fixedly provided with a protection plate 210, and the protection plate 210 is connected with the side wall of the second fixing frame 203. The lead screw 204 is sleeved with a third fixing frame, the top end of the fixing frame is connected with the driving device, and the side wall of the fixing frame is connected with the protection plate 210.
When the device operates, the servo motor 202 drives the tensioning wheel to rotate, the tensioning wheel drives the screw 206 to rotate through the synchronous belt 205, the screw 206 moves on the screw rod 204, and the protection plate 210 is connected with the third fixing frame, the first fixing frame 207 and the second fixing frame 203 respectively, so that in the driving process of the servo motor 202, the first fixing frame 207 and the second fixing frame 203 are driven by the protection plate 210 to be connected with the whole to move on the slide rail 1. This achieves accurate movement.
As can be seen from the above description, the device has the following advantages: the screw is driven to rotate through the servo motor, the movement of the lead screw in the traditional lead screw transmission process is avoided, so that the accurate movement is realized, the damage of the lead screw transmission to the lead screw is reduced, and the inaccurate transmission influence caused by the lead screw shaking is reduced.
It should be understood that the detailed description of the utility model is merely illustrative of the utility model and is not intended to limit the utility model to the specific embodiments described. It will be appreciated by those skilled in the art that the present invention may be modified or substituted equally as well to achieve the same technical result; as long as the use requirements are met, the method is within the protection scope of the utility model.
Claims (3)
1. A lead screw transmission device comprises a lead screw and a nut, and is characterized by also comprising a driving device and a sliding device; the sliding device comprises a saddle, a sliding rail and a sliding block, two ends of the screw rod are respectively clamped and fixedly arranged on the first screw rod seat and the second screw rod seat, and the first screw rod seat and the second screw rod seat are fixedly arranged on the saddle; a tension pulley is arranged at the rotating shaft end of the driving device, a gear disc is sleeved on the nut, the tension pulley is in transmission connection with the gear disc through a synchronous belt, a connecting hole is formed in the nut, and the screw rod is rotatably connected with the connecting hole; the guide rail is fixedly arranged on the sliding saddle, a first fixing frame and a second fixing frame are respectively arranged at two ends of the driving device, the first fixing frame and the second fixing frame are respectively erected on the sliding block, and the sliding block is connected with the guide rail; and a protection plate is fixedly arranged on the side wall of the first fixing frame and connected with the side wall of the second fixing frame.
2. The screw transmission device according to claim 1, wherein a third fixing frame is sleeved on the screw rod, the top end of the fixing frame is connected with the driving device, and the side wall of the fixing frame is connected with the protection plate.
3. The screw drive of claim 1, wherein the drive is a servo motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122067533.XU CN216131332U (en) | 2021-08-30 | 2021-08-30 | Lead screw transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122067533.XU CN216131332U (en) | 2021-08-30 | 2021-08-30 | Lead screw transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216131332U true CN216131332U (en) | 2022-03-25 |
Family
ID=80772224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122067533.XU Active CN216131332U (en) | 2021-08-30 | 2021-08-30 | Lead screw transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216131332U (en) |
-
2021
- 2021-08-30 CN CN202122067533.XU patent/CN216131332U/en active Active
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