CN214419081U - Lifting device for preventing saw blade from sliding downwards - Google Patents
Lifting device for preventing saw blade from sliding downwards Download PDFInfo
- Publication number
- CN214419081U CN214419081U CN202022788671.2U CN202022788671U CN214419081U CN 214419081 U CN214419081 U CN 214419081U CN 202022788671 U CN202022788671 U CN 202022788671U CN 214419081 U CN214419081 U CN 214419081U
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- adjusting screw
- lifting
- motor
- bevel gear
- screw rod
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Abstract
The utility model discloses a prevent elevating gear of saw bit gliding, including organism, first lift adjusting screw and second lift adjusting screw, install the motor in the organism, install the saw bit on the motor output shaft, the crank is connected to first lift adjusting screw one end, and the other end is connected first bevel gear after transversely passing the organism, install the jump ring on the first lift adjusting screw, be provided with the pressure spring between jump ring and the organism, the vertical installation of second lift adjusting screw is between organism and motor front end housing, second lift adjusting screw passes organism one end and is connected with second bevel gear, first bevel gear and second bevel gear meshing. The utility model discloses pressure spring between jump ring and the organism on the first lift adjusting screw can provide pressure, and when the machine vibrations, the anti-engaging force that the gear that produces produced can be overcome to pressure, prevents the saw bit decline, effectively prevents to appear cutting continuous timber phenomenon.
Description
Technical Field
The utility model relates to a bench saw, concretely relates to prevent elevating gear of saw bit gliding.
Background
The existing bench saw has the advantages that the motor has downward gravity, the machine is vibrated during working, the second lifting threaded screw can rotate reversely in the screw hole, the second gear drives the first gear to rotate reversely, so that the saw blade slowly descends, the cutting height cannot meet the requirement, the counter-rotation phenomenon between the gears is overcome, and under the general condition, the second lifting threaded screw adopts a structure with smaller pitch, so that the counter-rotation force is not enough to drive the gears to rotate. However, because the pitch is small, the motor will be lifted slowly, and the hand wheel needs to be rotated many times to lift the motor to the highest position for cutting.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the utility model aims at providing a prevent elevating gear of saw bit gliding solves and to rise the motor and need rotatory hand wheel many times when adopting the structure of less pitch to overcome the anti-rotation, complex operation's problem.
The technical scheme is as follows: the utility model discloses a prevent elevating gear of saw bit gliding, including organism, first lift adjusting screw and second lift adjusting screw, install the motor in the organism, install the saw bit on the motor output shaft, first lift adjusting screw one end is connected with the crank, and the other end is connected with first bevel gear after transversely passing the organism, install the jump ring on the first lift adjusting screw, be provided with the pressure spring between jump ring and the organism, second lift adjusting screw vertically installs between organism and the motor front end housing, second lift adjusting screw passes organism one end and is connected with the second bevel gear, first bevel gear and second bevel gear meshing, wherein, first lift adjusting screw rotates and drives first bevel gear rotation, first bevel gear rotation drives second bevel gear rotation, second bevel gear rotation drives second lift screw rotation, the second lifting screw rotates to drive the motor to lift, and the motor lifts to drive the saw blade to lift.
Guide posts are arranged at positions of the machine body corresponding to two sides of the motor, and the motor is mounted on the guide posts and slides along the guide posts.
And a clamp spring groove for installing a clamp spring is formed in the first lifting adjusting screw rod.
The motor front end cover is provided with a threaded hole, and one end of the second lifting adjusting screw rod is installed in the threaded hole.
One end of the second lifting screw is in threaded connection with the front end cover of the motor, the other end of the second lifting screw is fixed with the lifting seat, and the lifting seat is installed in the machine body.
The first lifting adjusting screw and the second lifting adjusting screw are double-thread screws.
Has the advantages that: the utility model discloses pressure spring between jump ring and the organism on the first lift adjusting screw can provide pressure, and when the machine vibrations, the anti-meshing power that the gear that produces can be overcome to pressure, prevents the saw bit decline, effectively prevents to appear cutting constantly timber phenomenon, and the lifting screw of this application can adopt double thread screw rod simultaneously, only needs to rotate the hand wheel to original half the number of turns just can cut the highest position with the motor lift.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of the assembly structure of the first elevation adjustment screw.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in FIG. 1-2, the utility model discloses a lifting device for preventing a saw blade from sliding down, which comprises a machine body 8, a first lifting adjusting screw rod 3 and a second lifting adjusting screw rod 4, wherein a motor 1 is installed in the machine body 8, guide posts 6 are respectively arranged on both sides of the motor 1, the guide posts 6 are fixed in the machine body 8, the motor 1 is slidably installed on the guide posts 6, the motor 1 can move up and down on the guide posts 5, a saw blade 2 is installed on a motor output shaft, one end of the first lifting adjusting screw rod 3 is connected with a crank, the other end of the first lifting adjusting screw rod transversely passes through the machine body and then is connected with a first bevel gear 9, a clamp spring groove is arranged on the first lifting adjusting screw rod 3, a clamp spring 11 is installed in the clamp spring groove, a pressure spring 10 is arranged between the clamp spring 11 and the machine body 8, the second lifting adjusting screw rod 4 is vertically installed between the machine body 8 and a motor front end cover 12, a threaded hole is arranged on the motor front end cover 12, one end of the second lifting adjusting screw rod 4 is installed in the threaded hole, the other end of the lifting mechanism is installed in a machine body 8 through a lifting seat 7, a second lifting adjusting screw rod 4 penetrates through the machine body to be connected with a second bevel gear, a first bevel gear is meshed with the second bevel gear, the first lifting adjusting screw rod and the second lifting adjusting screw rod are double-thread screw rods, the first lifting adjusting screw rod rotates to drive the first bevel gear to rotate, the first bevel gear rotates to drive the second bevel gear to rotate, the second bevel gear rotates to drive the second lifting screw rod to rotate, the second lifting screw rod rotates to drive a motor to lift, and the motor lifts to drive a saw blade to lift.
When the utility model is used, the crank is rotated to drive the first lifting adjusting screw rod to rotate, the first bevel gear on the first lifting adjusting screw rod rotates along with the first lifting adjusting screw rod, the second bevel gear engaged with the second bevel gear rotates to drive the second lifting adjusting screw to rotate in the threaded hole of the front end cover by taking the lifting seat as a supporting point, the driving motor ascends and descends along the second lifting adjusting screw, in order to stabilize the ascending and descending stability of the motor, the two lifting guide posts are used for ensuring the motion track of the ascending and descending motion of the motor, thereby drive the saw bit oscilaltion, when the machine work produced vibrations, the pressure that the pressure spring on the first lift adjusting screw was applyed on the jump ring transmits first lift adjusting screw on, makes adjusting screw rotatory when having certain resistance, drives first lift adjusting screw rotatory when preventing the machine vibrations, provides the anti-meshing force that pressure overcome the gear and produce, prevents that the saw bit from gliding.
Claims (6)
1. A lifting device for preventing a saw blade from sliding downwards is characterized by comprising a machine body (8), a first lifting adjusting screw rod (3) and a second lifting adjusting screw rod (4), wherein a motor (1) is installed in the machine body, a saw blade (2) is installed on an output shaft of the motor, one end of the first lifting adjusting screw rod (3) is connected with a crank (5), the other end of the first lifting adjusting screw rod transversely penetrates through the machine body and then is connected with a first bevel gear (9), a clamp spring (11) is installed on the first lifting adjusting screw rod (3), a pressure spring (10) is arranged between the clamp spring (11) and the machine body (8), the second lifting adjusting screw rod (4) is vertically installed between the machine body and a front end cover (12) of the motor, one end of the second lifting adjusting screw rod penetrating through the machine body is connected with a second bevel gear, the first bevel gear is meshed with the second bevel gear, and the first lifting adjusting screw rod rotates to drive the first bevel gear to rotate, the first bevel gear rotates to drive the second bevel gear to rotate, the second bevel gear rotates to drive the second lifting screw to rotate, the second lifting screw rotates to drive the motor to lift, and the motor lifts to drive the saw blade to lift.
2. The lifting device for preventing the downward sliding of the saw blade as claimed in claim 1, wherein the machine body is provided with guide posts (6) at positions corresponding to both sides of a motor, and the motor is mounted on the guide posts and slides along the guide posts.
3. The lifting device for preventing the saw blade from sliding downwards as claimed in claim 1, characterized in that the first lifting adjusting screw (3) is provided with a snap spring groove for installing the snap spring (11).
4. The lifting device for preventing the saw blade from sliding down as claimed in claim 1, wherein the motor front end cap is provided with a threaded hole, and one end of the second lifting adjusting screw rod is installed in the threaded hole.
5. The lifting device for preventing the saw blade from sliding down as claimed in claim 1, wherein one end of the second lifting screw is connected with the front end cover of the motor in a threaded manner, the other end of the second lifting screw is fixed with the lifting seat (7), and the lifting seat (7) is installed in the machine body.
6. The lifting device for preventing the downward sliding of the saw blade as claimed in claim 1, wherein the first lifting adjusting screw (3) and the second lifting adjusting screw (4) are double-thread screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022788671.2U CN214419081U (en) | 2020-11-27 | 2020-11-27 | Lifting device for preventing saw blade from sliding downwards |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022788671.2U CN214419081U (en) | 2020-11-27 | 2020-11-27 | Lifting device for preventing saw blade from sliding downwards |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214419081U true CN214419081U (en) | 2021-10-19 |
Family
ID=78050156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022788671.2U Active CN214419081U (en) | 2020-11-27 | 2020-11-27 | Lifting device for preventing saw blade from sliding downwards |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214419081U (en) |
-
2020
- 2020-11-27 CN CN202022788671.2U patent/CN214419081U/en active Active
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