CN211501523U - Thread type linear motion mechanism - Google Patents
Thread type linear motion mechanism Download PDFInfo
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- CN211501523U CN211501523U CN201922093412.5U CN201922093412U CN211501523U CN 211501523 U CN211501523 U CN 211501523U CN 201922093412 U CN201922093412 U CN 201922093412U CN 211501523 U CN211501523 U CN 211501523U
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- linear motion
- screw
- nut
- motion mechanism
- type linear
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Abstract
A thread type linear motion mechanism belongs to the field of machinery and solves the problems of the existing thread type linear motion mechanism, and comprises a nut and a lead screw arranged in the nut, wherein one side of the nut is provided with an axial gap; the utility model is used for convert rotary motion into linear motion.
Description
Technical Field
The utility model belongs to the field of machinery, concretely relates to screw thread formula linear motion mechanism.
Background
The thread type linear motion mechanism is a mechanism which converts rotary motion into linear motion and is common in the mechanical field, and has a basic structure that a screw nut is arranged on a screw rod, the rotation of the screw nut is limited, and the linear motion of the screw nut is realized when a motor drives the screw rod to rotate; the movement range of a nut in the conventional threaded linear movement mechanism is limited on one side of a motor and limited by the length of a lead screw, so that the problems of large speed body length and small movement range need to be solved, and the scheme is developed.
Disclosure of Invention
The utility model aims at solving the above problem that current screw thread formula linear motion mechanism exists, providing a screw thread formula linear motion mechanism, its technical scheme as follows:
a threaded linear motion mechanism comprises a nut and a lead screw arranged in the nut, wherein an axial gap is arranged on one side of the nut, a gear or a belt pulley is arranged at one end of the lead screw, and a shaft hole is formed in the lead screw.
The utility model has the advantages that: the motion range of the screw is not limited by the length of the screw, the whole-course driving of the screw can be realized even if the screw is short to only one circle of threads, and the screw can reciprocate on two sides of the motor, so that the screw is particularly suitable for driving objects which are large in size and need to be connected with a long screw.
Description of the drawings:
fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is an exploded view of FIG. 1;
figure 3 is a schematic view of the use of the present invention to drive a sliding door;
figure 4 is a schematic view of a sliding door driven by a prior art mechanism.
The specific implementation mode is as follows:
referring to fig. 1 to 4, a screw type linear motion mechanism includes a nut 1 and a lead screw 2 disposed inside the nut 1, and an axial notch is provided at one side of the nut 1, that is, the nut has a C-shaped cross section.
One end of the screw 2 is provided with a gear 3 or a belt pulley for connecting with a motor 4.
The screw rod 2 is provided with a shaft hole 2-1, namely the screw rod 2 is cylindrical and is convenient to fix by a shaft rod.
Use the utility model discloses drive push-and-pull door 5, rotate lead screw 2 and connect on a pedestal 6, pedestal 6 is fixed on the door frame of push-and-pull door 5 or on the wall, motor 4 also fixes on pedestal 6 and connects lead screw 2 through gear 3, screw 1 and push-and-pull door 5 fixed connection, push-and-pull door 5 supports through the pulley, make lead screw 2 and screw 1 interlock, push-and-pull door 5 needs to be opened one hundred percent, the distance that moves promptly is not less than the width of push-and-pull door 5, the length of screw 1 is close the width of push-and-pull door 5 can, when the length of screw 1 is equal with the width of push-and-pull door 5, it can to have at least a round screw thread on the lead screw; if the existing mechanism is used for driving the sliding door 5, the total length of the sliding door 5 is more than twice of that of the sliding door 5 with the same moving distance.
Claims (1)
1. A threaded linear motion mechanism comprises a nut (1) and a lead screw (2) arranged inside the nut (1), and is characterized in that an axial gap is formed in one side of the nut (1), a gear (3) or a belt pulley is arranged at one end of the lead screw (2), and a shaft hole (2-1) is formed in the lead screw (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922093412.5U CN211501523U (en) | 2019-11-28 | 2019-11-28 | Thread type linear motion mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922093412.5U CN211501523U (en) | 2019-11-28 | 2019-11-28 | Thread type linear motion mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211501523U true CN211501523U (en) | 2020-09-15 |
Family
ID=72411969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922093412.5U Active CN211501523U (en) | 2019-11-28 | 2019-11-28 | Thread type linear motion mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211501523U (en) |
-
2019
- 2019-11-28 CN CN201922093412.5U patent/CN211501523U/en active Active
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