CN217463101U

CN217463101U - Lead screw module structure capable of realizing large-ratio coarse-fine double speed

Info

Publication number: CN217463101U
Application number: CN202221196950.2U
Authority: CN
Inventors: 唐飞; 夏秋华
Original assignee: Jiangsu Leibo Scientific Instrument Co ltd
Current assignee: Jiangsu Leibo Scientific Instrument Co ltd
Priority date: 2022-05-18
Filing date: 2022-05-18
Publication date: 2022-09-20
Anticipated expiration: 2032-05-18

Abstract

The utility model relates to a lead screw module technical field specifically is a can realize thick smart double speed's of big ratio lead screw module structure, including the lead screw, the damping shaft coupling is installed to the one end of lead screw, and the gearbox seat is installed to the one end of damping shaft coupling, and worm wheel are installed respectively to the inside of gearbox seat, and the synchronizing wheel is installed to one side of gearbox seat, and the damping shaft coupling includes piece and coupling joint back piece before the coupling joint. The utility model discloses, through setting up this damping shaft coupling for the in-process of thick advancing movement can not take place to be correlated with the mechanism of smart advancing movement, simultaneously when the coarse adjustment impels, the action can not take place for the fine tuning mechanism, only the lead screw module takes place to move, when the fine tuning impels, the lead screw module moves with the coarse tuning mechanism together, the lead screw module carries out the accurate motion of small displacement, and then ensure that the ratio of thick accurate double speed motion can enlarge a very big ratio, realize the fine tuning function of whole lead screw module structure with this.

Description

Lead screw module structure capable of realizing large-ratio coarse-fine double speed

Technical Field

The utility model relates to a lead screw module technical field especially relates to a can realize thick smart double speed's of big ratio lead screw module structure.

Background

The screw is the most commonly used transmission element on tool machinery and precision machinery, and its main function is to convert rotary motion into linear motion or convert torque into axial repeated acting force, and has the characteristics of high precision, reversibility and high efficiency. Because of having very little frictional resistance, ball is widely used in various industrial equipment and precision instrument, at present, the coarse and fine fast lead screw module structure on the market is mostly the mode of big small rack simultaneous operation, leads to the coarse and fine double speed ratio that can realize limited, and 10 times has been close to the design limit, can't satisfy the demand, needs to improve.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a lead screw module structure capable of realizing large ratio coarse and fine double speeds.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a can realize thick smart double speed's of big ratio lead screw module structure, includes the lead screw, the damping shaft coupling is installed to the one end of lead screw, the gear box seat is installed to the one end of damping shaft coupling, worm and worm wheel are installed respectively to the inside of gear box seat, the synchronizing wheel is installed to one side of gear box seat.

In order to improve the result of use of this damping shaft coupling, the utility model discloses the improvement has, the damping shaft coupling includes piece and coupling joint back piece before the coupling joint, the inside at the coupling joint back piece is established to the piece cover before the coupling joint, the junction of piece and coupling joint back piece is provided with locking screw before the coupling joint.

In order to further improve the connection effect between piece and the coupling joint back piece three before locking screw, the coupling joint, the utility model discloses the improvement has, be provided with disc spring before locking screw and the coupling joint between the piece, all be provided with the tetrafluoro gasket between piece and the coupling joint back piece before locking screw and the coupling joint, the quantity of tetrafluoro gasket is three groups.

In order to improve the connection result of use of whole lead screw module structure, the utility model discloses the improvement has, the surface sliding connection of lead screw has bearing frame and No. two bearing frames, is located between bearing frame and No. two bearing frames the surface sliding connection of lead screw has the bell that lives.

For the convenient manual lead screw that rotates of staff, the utility model discloses the improvement has, the lead screw is close to the one end of No. two bearing frames and installs manual wheel.

In order to further improve the use effect of the screw rod module structure, the utility model discloses the improvement has, the helical pitch of lead screw is 2mm, the velocity ratio of worm and worm wheel is 1: 50.

In order to improve the fixed effect of installation of gearbox seat, the utility model discloses the improvement has, bearing lock nut is installed with damping shaft coupling's junction to the gearbox seat.

Compared with the prior art, the utility model discloses an advantage lies in with positive effect:

the utility model discloses in, through setting up this damping shaft coupling for the in-process of thick advancing movement can not take place to associate with the mechanism of smart advancing movement, simultaneously when the coarse adjustment impels, the action can not take place for the fine tuning mechanism, only the lead screw module takes place to move, when the fine tuning impels, the lead screw module moves with the coarse tuning mechanism together, the lead screw module carries out the accurate motion of small displacement, and then ensure that the ratio of thick accurate double speed motion can enlarge a very big ratio, realize the fine tuning function of whole lead screw module structure with this.

Drawings

Fig. 1 is a schematic diagram of an overall structure of a lead screw module structure capable of realizing coarse-fine double speed with a large ratio;

fig. 2 is the utility model provides a can realize rough and fine double speed's of big ratio damping shaft coupling inner structure sketch map.

Illustration of the drawings:

1. a bearing lock nut; 2. a gear box base; 3. a worm; 4. a worm gear; 5. a synchronizing wheel; 6. a damping coupling; 7. a first bearing seat; 8. a lead screw; 9. a live bell; 10. a second bearing seat; 11. a hand-operated wheel; 12. the coupler is connected with the front block; 13. locking screws; 14. a tetrafluoro spacer; 15. a belleville spring; 16. the coupler is connected with the rear block.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Example one

Referring to fig. 1-2, the present invention provides a technical solution: a lead screw module structure capable of realizing large-ratio coarse-fine double speed comprises a lead screw 8, one end of the lead screw 8 is provided with a damping coupler 6, one end of the damping coupler 6 is provided with a gearbox seat 2, the inside of the gearbox seat 2 is respectively provided with a worm 3 and a worm wheel 4, one side of the gearbox seat 2 is provided with a synchronizing wheel 5, the damping coupler 6 comprises a coupler connection front block 12 and a coupler connection rear block 16, the coupler connection front block 12 is sleeved inside the coupler connection rear block 16, a locking screw 13 is arranged at the joint of the coupler connection front block 12 and the coupler connection rear block 16, the damping coupler 6 is arranged to ensure that the coarse-feed motion process cannot be associated with a fine-feed motion mechanism, meanwhile, during coarse-adjustment propulsion, the fine-adjustment mechanism cannot move, only the lead screw 8 module moves, during fine-adjustment propulsion, the lead screw 8 module moves together with the coarse-adjustment mechanism, the lead screw 8 module carries out the accurate motion of small displacement, and then ensures that the ratio of thick accurate double-speed motion can enlarge to a very big ratio to this fine tuning function that realizes whole lead screw 8 module structure.

Referring to fig. 1 and 2, a belleville spring 15 is arranged between a locking screw 13 and a coupling connection front block 12, tetrafluoro gaskets 14 are arranged between the locking screw 13 and the coupling connection front block 12 and between the coupling connection front block 12 and a coupling connection rear block 16, the number of the tetrafluoro gaskets 14 is three, the connection effect among the locking screw 13, the coupling connection front block 12 and the coupling connection rear block 16 can be further improved by arranging the belleville springs 15 and the three tetrafluoro gaskets 14, the stable motion of the whole structure is ensured, a first bearing seat 7 and a second bearing seat 10 are slidably connected to the outer surface of a lead screw 8, a movable bell 9 is slidably connected to the outer surface of the lead screw 8 between the first bearing seat 7 and the second bearing seat 10, and the connection and installation of the whole structure and external equipment can be facilitated by arranging the first bearing seat 7, the second bearing seat 10 and the movable bell 9, the connecting and using effect of the whole lead screw 8 module structure is further improved, one end of the lead screw 8, close to the second bearing seat 10, is provided with a manual wheel 11, the manual wheel 11 can provide a force application point, the lead screw 8 can be conveniently and manually rotated by a worker, the lead of the lead screw 8 is 2mm, the speed ratio of the worm 3 to the worm wheel 4 is 1:50, the thickness adjusting precision of the whole structure can be guaranteed, the bearing locking nut 1 is arranged at the connecting position of the gear box seat 2 and the damping coupling 6, and the mounting and fixing effect of the gear box seat 2 can be further improved through the bearing locking nut 1.

The working principle is as follows: when the screw rod module structure is in operation, the locking screw 13 can play a role in adjusting the torque force used by the damping coupler 6, so that the torque force value required by the relative motion of the coupler connection front block 12 and the coupler connection rear block 16 during motion can be adjusted, when the coarse-advance manual wheel 11 is rotated, the screw rod 8 moves, the movement of the fine-advance side is blocked by the irreversible motion of the worm wheel 4 and the worm 3, the damping coupler 6 performs internal rotation motion, namely coarse-advance motion, when the fine-advance motion synchronizing wheel 5 rotates, the synchronizing wheel 5 drives the worm 3, the worm 3 drives the worm wheel, the worm wheel transmits the rotation motion to the screw rod 8 through the damping coupler 6, and the movable bell 9 performs front-and-back movement, namely fine-advance motion.

In the above, the present invention is only a preferred embodiment, and is not limited to the present invention in other forms, and any person skilled in the art may use the above-disclosed technical contents to change or modify the equivalent embodiment into equivalent changes to be applied in other fields, but all the persons do not depart from the technical contents of the present invention, and any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a can realize thick smart double-speed lead screw module structure of big ratio, includes lead screw (8), its characterized in that: damping shaft coupling (6) are installed to the one end of lead screw (8), gear box seat (2) are installed to the one end of damping shaft coupling (6), worm (3) and worm wheel (4) are installed respectively to the inside of gear box seat (2), synchronizing wheel (5) are installed to one side of gear box seat (2).

2. The lead screw module structure capable of realizing the coarse-fine double speed with the large ratio as claimed in claim 1, wherein: damping shaft coupling (6) are including block (12) and coupling joint back piece (16) before the coupling joint, the inside at coupling joint back piece (16) is established to block (12) cover before the coupling joint, the junction of block (12) and coupling joint back piece (16) is provided with locking screw (13) before the coupling joint.

3. The lead screw module structure capable of realizing the coarse-fine double speed with the large ratio as claimed in claim 2, wherein: be provided with belleville spring (15) before locking screw (13) and the coupling joint between piece (12), all be provided with tetrafluoro gasket (14) before locking screw (13) and the coupling joint between piece (12), the coupling joint before piece (12) and the coupling joint back piece (16), the quantity of tetrafluoro gasket (14) is three groups.

4. The lead screw module structure capable of realizing the coarse-fine double speed with the large ratio as claimed in claim 1, wherein: the outer surface sliding connection of lead screw (8) has bearing frame (7) and No. two bearing frames (10), is located between bearing frame (7) and No. two bearing frames (10) the outer surface sliding connection of lead screw (8) has loose bell (9).

5. The lead screw module structure capable of realizing the coarse-fine double speed with the large ratio as claimed in claim 4, wherein: and a manual wheel (11) is arranged at one end of the screw rod (8) close to the second bearing seat (10).

6. The lead screw module structure capable of realizing the coarse-fine double speed with the large ratio as claimed in claim 1, wherein: the lead of the lead screw (8) is 2mm, and the speed ratio of the worm (3) to the worm wheel (4) is 1: 50.

7. The lead screw module structure capable of realizing the coarse-fine double speed with the large ratio as claimed in claim 1, wherein: and a bearing locking nut (1) is arranged at the joint of the gear box seat (2) and the damping coupler (6).