阅读说明：本技术 一种高精度多级升降机构 (High-precision multi-stage lifting mechanism ) 是由 刘鹏 陆君 郑凯宇 袁建军 李倩 于 2021-10-27 设计创作，主要内容包括：本发明涉及一种高精度多级升降机构,涉及升降台的领域,其包括基座、安装在基座上的升降动力单元、用于驱动升降动力单元的驱动装置、安装在升降动力单元顶部的升降平台、以及多个设置在升降动力单元外周的升降框架,相互靠近的两个升降框架滑移配合,靠近升降平台的升降框架与升降平台连接,远离升降平台的升降框架设置在基座或地面上。本发明具有提高工作效率的效果。(The invention relates to a high-precision multi-stage lifting mechanism, which relates to the field of lifting platforms and comprises a base, a lifting power unit arranged on the base, a driving device used for driving the lifting power unit, a lifting platform arranged at the top of the lifting power unit and a plurality of lifting frames arranged on the periphery of the lifting power unit, wherein the two lifting frames close to each other are matched in a sliding manner, the lifting frame close to the lifting platform is connected with the lifting platform, and the lifting frame far away from the lifting platform is arranged on the base or the ground. The invention has the effect of improving the working efficiency.)

1. The utility model provides a multistage elevating system of high accuracy which characterized in that: including base (8), install lift power unit (7), the drive that is used for on base (8) lift power unit (7), install lift platform (1) and a plurality of setting at lift power unit (7) top are in lift frame (5) of lift power unit (7) periphery, two that are close to each other lift frame (5) cooperation of sliding is close to lift platform (1) lift frame (5) with lift platform (1) is connected, keeps away from lift platform (1) lift frame (5) set up base (8) or subaerial.

2. A high precision multi-stage lifting mechanism according to claim 1, characterized in that: keep away from lift platform (1) lift frame (5) overlap in proper order and establish be close to lift platform (1) lift frame (5).

3. A high precision multi-stage lifting mechanism according to claim 2, characterized in that: in two of the mutually sliding fit lifting frame (5), be close to lifting platform (1) the outer wall of lifting frame (5) is provided with linear guide (4), keeps away from lifting platform (1) the inner wall of lifting frame (5) is provided with linear guide slider (6), linear guide (4) orientation lifting platform (1) and with linear guide slider (6) cooperate.

4. A high precision multi-stage lifting mechanism according to claim 3, characterized in that: the linear guide rail sliding blocks (6) are arranged on each face of the inner wall of the lifting frame (5) in a two-way mode.

5. A high precision multi-stage lifting mechanism according to claim 1, characterized in that: the lifting platform is characterized by further comprising tightening mechanisms arranged on two sides or the periphery of the lifting frame (5), each tightening mechanism comprises a steel wire rope anchoring device arranged at the bottom of the lifting platform (1), a steel wire rope coiling machine (9) fixed on the ground and a steel wire rope (3) connected with the steel wire rope anchoring device and the steel wire rope coiling machine (9), each steel wire rope anchoring device comprises a steel wire rope anchoring lug (2) arranged on a bottom side line of the lifting platform (1), one end of each steel wire rope (3) is fixed on each steel wire rope anchoring lug (2), and the other end of each steel wire rope (3) is tightened by the steel wire rope coiling machine (9).

6. A high precision multi-stage lifting mechanism according to claim 1, characterized in that: the driving device adopts a servo motor.

7. A high precision multi-stage lifting mechanism according to claim 1, characterized in that: and a limit switch is arranged on the lifting power unit (7).

8. A high precision multi-stage lifting mechanism according to claim 1, characterized in that: and a stroke protection device is arranged on the lifting power unit (7).

Technical Field

The invention relates to the field of lifting tables, in particular to a high-precision multi-stage lifting mechanism.

Background

The large spiral lifting platform is used as modern lifting equipment, has wide application field and is mainly used in industries such as factories, stages, logistics and the like. Due to its excellent stability, accuracy and load-bearing capacity, large screw jacks will be preferred by more and more application scenarios.

At present, the elevating platform adopts technical scheme such as pneumatic cylinder or scissor lift mostly, nevertheless because the whole rigidity of lift process is not enough, and bearing capacity is limited, and stability is relatively poor, produces the deformation easily during the lift, can not satisfy increasingly complicated operation environment, influences work efficiency.

Disclosure of Invention

The purpose of the invention is: the utility model provides a multistage elevating system of high accuracy, its simple structure, with low costs, convenient maintenance drives through the lift power pack, and elevating system's four faces all have wire rope firm, more stable when making elevating system go up and down, and the atress is even, and bearing capacity is strong.

In order to achieve the above purpose, the technical solution of the present invention provides a high-precision multi-stage lifting mechanism, which includes a base, a lifting power unit mounted on the base, a driving device for driving the lifting power unit, a lifting platform mounted on the top of the lifting power unit, and a plurality of lifting frames disposed on the periphery of the lifting power unit, wherein two lifting frames close to each other are in sliding fit, the lifting frame close to the lifting platform is connected with the lifting platform, and the lifting frame far from the lifting platform is disposed on the base or the ground.

Preferably, the lifting frame far away from the lifting platform is sequentially sleeved with the lifting frame close to the lifting platform.

Preferably, in the two lifting frames which are matched with each other in a sliding manner, the outer wall of the lifting frame close to the lifting platform is provided with a linear guide rail, the inner wall of the lifting frame far away from the lifting platform is provided with a linear guide rail sliding block, and the linear guide rail faces the lifting platform and is matched with the linear guide rail sliding block.

Preferably, the number of the linear guides provided on each surface of the outer wall of the lifting frame is two, and the number of the linear guide sliders provided on each surface of the inner wall of the lifting frame is two.

Preferably, the lifting frame further comprises tightening mechanisms arranged on two sides or the periphery of the lifting frame, each tightening mechanism comprises a steel wire rope anchoring device arranged at the bottom of the lifting platform, a steel wire rope coiling machine fixed on the ground and a steel wire rope connecting the steel wire rope anchoring device and the steel wire rope coiling machine, the steel wire rope anchoring device comprises a steel wire rope anchoring lug arranged on a side line at the bottom of the lifting platform, one end of the steel wire rope is fixed on the steel wire rope anchoring lug, and the other end of the steel wire rope is tightened by the steel wire rope coiling machine.

Preferably, the driving device adopts a servo motor.

Preferably, the lifting power unit is provided with a limit switch.

Preferably, a stroke protection device is arranged on the lifting power unit.

In summary, the invention has the following beneficial technical effects:

the multi-stage lifting mechanism with the steel wire rope for anchoring is simple in structure, low in cost and convenient to maintain, lifting driving is carried out through the lifting power unit, the steel wire ropes are arranged on four surfaces of the lifting mechanism stably, and therefore the lifting mechanism is stable in lifting, uniform in stress and strong in bearing capacity.

Drawings

Fig. 1 is a schematic structural diagram of a high-precision multi-stage lifting mechanism in the invention.

Reference numerals: 1. a lifting platform; 2. the steel wire rope anchors the ear; 3. a wire rope; 4. a linear guide rail; 5. a lifting frame; 6. a linear guide slider; 7. a lifting power unit; 8. a base; 9. wire rope coiling machine.

Detailed Description

The present invention will be described in detail with reference to fig. 1, and the technical solutions in the embodiments of the present invention will be clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The embodiment of the invention discloses a high-precision multi-stage lifting mechanism.

The invention comprises a lifting platform 1, a steel wire rope anchoring lug 2, a steel wire rope 3, a linear guide rail 4, a lifting frame 5, a linear guide rail slider 6, a lifting power unit 7, a base 8, a steel wire rope coiling machine 9, a steel wire rope anchoring device and a driving device.

The lifting power unit 7 is arranged at the inner center of the lifting platform, the bottom of the lifting power unit 7 is fixed on the base 8, and the top of the lifting power unit 7 supports the lifting platform 1; the driving device adopts a servo motor, and the lifting power unit 7 is driven by the servo motor and supports the lifting platform 1 to do lifting motion; in addition, the lifting power unit 7 is provided with a limit switch, and unsafe factors caused by overlarge lifting stroke are avoided through the limit switch; in addition, a stroke protection device is further arranged on the lifting power unit 7, and the safety and the reliability of the lifting mechanism are improved through the stroke protection device.

The lifting frames 5 are arranged in a plurality of parallel, the linear guide rails 4 are arranged in a plurality of numbers, and two linear guide rails 4 are arranged on four outer surfaces of each lifting frame 5; each face of the inner wall of each stage of lifting frame 5 is provided with two linear guide rail sliding blocks 6, and each linear guide rail sliding block 6 is respectively in sliding fit with different linear guide rails 4.

The four steel wire rope coiling machines 9 are respectively fixed on the ground around the lifting frame 5, the steel wire rope anchoring devices comprise steel wire rope anchoring lugs 2, and the steel wire rope anchoring lugs 2 are respectively fixed on the side line direction of the bottom of the lifting platform 1; the number of the steel wire ropes 3 is four, one end of each steel wire rope 3 is fixed on the corresponding steel wire rope anchoring lug 2, the other end of each steel wire rope 3 is tightened by the corresponding steel wire rope coiling machine 9, and each steel wire rope 3 is tightened along with the lifting motion of the lifting mechanism. Through this setting, be favorable to guaranteeing the elimination from the side force, ensure the stability of structure.

The lifting power unit 7 can be in the form of a multi-stage hydraulic cylinder, a linear module, a rigid chain or a spiral lifter.

The invention provides a high-precision multistage lifting mechanism, which has the following working principle:

firstly, a lifting power unit 7 is taken as main lifting equipment and is placed in the center of the interior of the lifting mechanism, and the top of the lifting power unit 7 is fixedly installed at the bottom of a lifting platform 1;

secondly, the lifting power unit 7 is connected with a servo motor, the servo motor drives the lifting power unit 7 to do lifting motion when in use, the lifting power unit 7 drives the lifting platform 1 to lift together, and the lifting mechanism is kept stable when lifted through the sliding connection and matching between the linear guide rail 4 and the linear guide rail slide block 6 arranged between the lifting frames 5 at all levels, and meanwhile, the lifting frames 5 at all levels are ensured to be parallel all the time;

thirdly, the steel wire rope anchoring lugs 2 are symmetrically arranged on four edge directions of the base of the lifting platform 1, one end of the steel wire rope 3 is fixed on the steel wire rope anchoring lugs 2, the other end of the steel wire rope 3 is restrained on the steel wire rope coiling machine 9, the steel wire rope 3 is tightened along with lifting movement, the influence from lateral force is eliminated, and the steel wire rope has high rigidity all around.

The invention provides a high-precision multi-stage lifting mechanism which is simple in structure, low in cost and convenient to maintain, the lifting power unit 7 is used for driving lifting, and the four surfaces of the lifting mechanism are all provided with steel wire ropes 3 for stabilization, so that the lifting mechanism is more stable in lifting, uniform in stress and strong in bearing capacity.

The basic principles, main features and advantages of the present invention are shown and described above, and the standard parts used in the present invention are all commercially available, the special-shaped parts can be customized according to the description and the accompanying drawings, and the specific connection mode of each part adopts conventional means such as bolt and rivet, welding and the like mature in the prior art, and the detailed description is not provided herein.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. The general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. The present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.