CN212744912U

CN212744912U - Multistage ball screw synchronous vertical transmission device

Info

Publication number: CN212744912U
Application number: CN202021118444.2U
Authority: CN
Inventors: 薛峰; 耿长胜
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-16
Filing date: 2020-06-16
Publication date: 2021-03-19
Anticipated expiration: 2030-06-16

Abstract

The utility model discloses a synchronous perpendicular transmission of multistage ball mainly relates to transmission machinery technical field, including base, first sliding sleeve, second sliding sleeve, third sliding sleeve, first sliding sleeve is installed on the base, the outer wall of second sliding sleeve passes through the spline housing and connects inside first sliding sleeve, and the inner wall of second sliding sleeve is fixed on first nut through first pin, first nut internal thread and the first screw connection of fixing in the base bottom first lead screw outside is equipped with the second lead screw that cup joints, second lead screw bottom is fixed on first nut through the ring flange the second lead screw outside is equipped with the second nut, the second nut passes through second pin and connects the third sliding sleeve, is applicable to the vertical transmission of little space long distance, adopts ball to replace trapezoidal lead screw, has solved that trapezoidal lead screw frictional resistance is big, Difficult climbing.

Description

Multistage ball screw synchronous vertical transmission device

Technical Field

The utility model relates to the technical field of transmission machinery, specifically a synchronous perpendicular transmission of multistage ball.

Background

In the fields of modern industry, military communication, national defense and the like, various lifting platforms play an extremely important role, however, for extreme occasions requiring large-stroke lifting in some narrow spaces, products need to be repeatedly installed and moved, and various lifting machines in the market generally adopt a hydraulic lifting mast, a pneumatic lifting mast and a trapezoidal screw rod to drive the lifting mast. The hydraulic lifting mast and the pneumatic lifting mast need to be provided with a hydraulic system and a compressor, have the defects of large structure, large self weight, limitation of environmental conditions on use and the like, and the trapezoidal screw lifting mast has large friction resistance, is difficult to climb, has very large volume, has small lifting stroke, has large friction resistance and is difficult to climb, and is difficult to meet engineering requirements.

SUMMERY OF THE UTILITY MODEL

In view of the deficiencies and defects in the prior art, the utility model aims to provide a synchronous vertical transmission of multistage ball can provide firm the bearing to can carry out repeatability installation and removal, exert the highest lifting power in less space.

In order to solve the technical problem, the utility model discloses a following technical scheme: the utility model provides a synchronous vertical drive of multistage ball, its characterized in that: including base, first sliding sleeve, second sliding sleeve, third sliding sleeve, first sliding sleeve is installed on the base, the outer wall of second sliding sleeve passes through the spline housing and connects inside first sliding sleeve, and the inner wall of second sliding sleeve is fixed on first nut through first pin, first nut internal thread and the first screw connection who fixes in the base bottom first lead screw outside is equipped with the second lead screw that cup joints, second lead screw bottom is fixed on first nut through the ring flange the second lead screw outside is equipped with the second nut, the second nut passes through second pin joint third sliding sleeve.

As a further improvement, the first screw top is provided with a guide sleeve which is matched with the inner hole of the second screw to play a role in guiding and fixing.

As a further improvement of the utility model, the first sliding sleeve is installed on the base through a thrust ball bearing.

As a further improvement, the base is provided with fixing bolt holes.

Compared with the prior art, the utility model discloses the beneficial effect who has does: the utility model is suitable for a little space long distance's vertical drive adopts ball to replace trapezoidal lead screw, has solved the big, difficult drawback that climbs of trapezoidal lead screw frictional resistance.

Drawings

The invention will be further described with reference to the accompanying drawings:

fig. 1 is a schematic structural view of a multistage ball screw synchronous vertical transmission device of the present invention;

FIG. 2 is a schematic view of the structure at A-A of the present invention;

in the figure: the screw bolt comprises a base 1, a first sliding sleeve 2, a second sliding sleeve 3, a third sliding sleeve 4, a first lead screw 5, a first nut 6, a first pin 7, a second nut 8, a second lead screw 9, a second pin 10, a thrust ball bearing 11, a flange plate 12, a spline 13 and a fixing bolt hole 14.

Detailed Description

In order to make the technical solution and the advantageous effects of the present invention more clear, the present invention will be further described in detail with reference to the following embodiments.

FIG. 1 and FIG. 2 show a schematic structural diagram of the present invention, which includes a base 1, a first sliding sleeve 2, a second sliding sleeve 3, and a third sliding sleeve 4, wherein the first sliding sleeve 2 is mounted on the base 1 through a thrust ball bearing 11, an outer wall of the second sliding sleeve 3 is sleeved inside the first sliding sleeve 2 through a spline 13, an inner wall of the second sliding sleeve 3 is fixed on a first nut 6 through a first pin 7, an internal thread of the first nut 6 is connected with a first lead screw 5 fixed at the bottom of the base 1, a sleeved second lead screw 9 is arranged outside the first lead screw 5, a guide sleeve is arranged at the top end of the first lead screw 5, the guide sleeve is matched with an inner hole of the second lead screw 9 to play a guiding and fixing role, the bottom of the second lead screw 9 is fixed on the first nut 6 through a flange 12, a second nut 8 is arranged outside the second lead screw 9, the second nut 8 is connected with the third sliding sleeve 4 through a second pin 10, the base 1 is provided with a fixing bolt hole 14.

The utility model discloses a theory of operation, servo motor drives first sliding sleeve 2 rotatoryly, first sliding sleeve 2 drives second sliding sleeve 3 rotatoryly through the spline, second sliding sleeve 3 is owing to fixed through first pin 7 and spiral shell first nut 6, the event drives first nut 6 and rotates and rise along first lead screw 5, because first nut 6 passes through ring flange 12 with second lead screw 9 and fixes, the event drives second lead screw 9 and rotates and rise, second lead screw 9's rotary motion turns into second nut 8's linear motion, because second nut 8 is fixed through second pin 10 with third sliding sleeve 4, the event promotes third sliding sleeve 4 and rises, thereby realize multistage ball's synchronous vertical drive.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. It should be understood that the detailed description and specific examples, while indicating the invention, are given by way of illustration only, not by way of limitation, since other embodiments will become apparent to those skilled in the art upon consideration of the following detailed description of the invention without any creative effort.

Claims

1. The utility model provides a synchronous vertical drive of multistage ball, its characterized in that: including base (1), first sliding sleeve (2), second sliding sleeve (3), third sliding sleeve (4), install on base (1) first sliding sleeve (2), the outer wall of second sliding sleeve (3) passes through spline (13) and cup joints inside first sliding sleeve (2), and the inner wall of second sliding sleeve (3) is fixed on first nut (6) through first pin (7), first nut (6) internal thread is connected with first lead screw (5) of fixing in base (1) bottom first lead screw (5) outside is equipped with second lead screw (9) that cup joints, fix on first nut (6) through ring flange (12) second lead screw (9) outside is equipped with second nut (8), third sliding sleeve (4) is connected through second pin (10) in second nut (8).

2. The multi-stage ball screw synchronous vertical drive of claim 1, wherein: the top end of the first lead screw (5) is provided with a guide sleeve, and the guide sleeve is matched with an inner hole of the second lead screw (9) to play a role in guiding and fixing.

3. The multi-stage ball screw synchronous vertical drive of claim 1, wherein: the first sliding sleeve (2) is installed on the base (1) through a thrust ball bearing (11).

4. The multi-stage ball screw synchronous vertical drive of claim 1, wherein: a fixing bolt hole (14) is formed in the base (1).