Multi-section telescopic precise lifting rod positioning device

Abstract

The utility model discloses a multi-section telescopic precise lifting rod positioning device, and belongs to the technical field of telescopic rods. The multi-section telescopic precise lifting rod positioning device comprises an aluminum profile pipe and a base, the base is located at the bottom of the aluminum profile pipe, a plurality of guide aluminum sleeves are arranged in the aluminum profile pipe, the guide aluminum sleeves are connected with the aluminum profile pipe in a telescopic mode, the guide aluminum sleeves are connected in a sliding mode, and a top plate is arranged at the tops of the guide aluminum sleeves. In order to solve the problems that a first-stage telescopic rod is too large in telescopic ratio and cannot meet the requirements of low basic requirements and large stroke, and a multi-stage lifting rod is provided with a trapezoidal screw rod and is large in rotating resistance and cannot realize synchronous lifting, or the transmission efficiency is further reduced due to the fact that the structure becomes complicated due to synchronous lifting. Power is transmitted to the output gear through the synchronous gear, the output gear is connected with the ball screw, and lifting of the second-stage pipe is achieved.

Description

Technical Field

[0001] This utility model relates to the field of telescopic pole technology, specifically a positioning device for a multi-section telescopic precision lifting pole. Background Technology

[0002] Currently, there are relatively simple single-stage telescopic rods on the market, but the telescopic ratio is too large, which cannot meet the requirements of low foundation requirements and large stroke. Multi-stage lifting rods have trapezoidal lead screws, which have high rotational resistance and cannot achieve synchronous lifting, or achieving synchronous lifting makes the structure more complicated and further reduces the transmission efficiency.

[0003] There are also rope / belt type multi-stage lifting masts. Because ropes / belts are elastic, their precision is not high, and they are not wear-resistant or corrosion-resistant, resulting in a short lifespan for the lifting mast. There are also mast type multi-stage lifting masts, which use ropes or chains to achieve synchronous lifting. However, they have low precision, are large in size and heavy, and are not suitable for situations where there are requirements for the installation projection area or weight. Utility Model Content

[0004] The purpose of this invention is to provide a multi-section telescopic precision lifting rod positioning device. After the planetary reducer reduces the speed and amplifies the torque of the servo motor, the synchronous gear transmits the power to the output gear. The output gear is connected to the ball screw to realize the lifting of the second stage tube. At the same time, the output gear drives the power gear installed at the lower part of the hexagon to realize the transmission of power to the next stage. The same principle is used to transmit power and lift to the next stage in sequence, thus realizing the transmission of power and synchronous lifting. This achieves a higher compression ratio, a lower base height, and a higher lifting stroke, and can solve the problems in the existing technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-section telescopic precision lifting rod positioning device, comprising an aluminum profile tube and a base, the base being located at the bottom of the aluminum profile tube, the interior of the aluminum profile tube being provided with multiple guide aluminum sleeves, wherein the guide aluminum sleeves are telescopically connected to the aluminum profile tube, and the guide aluminum sleeves are slidably connected to each other, the top of the guide aluminum sleeves is provided with a top plate, wherein the top plate is connected to the guide aluminum sleeves through a slot, a tank drag chain is provided on one side of the aluminum profile tube, a planetary reducer is provided on one side of the base, and a servo motor is provided above the planetary reducer.

[0006] The above scheme uses a set screw between the guide aluminum sleeves. By adjusting the force of the set screw, the swaying gap during the lifting process is reduced, and the running resistance is increased to achieve structural self-locking. In this way, structural self-locking can be achieved without replacing the trapezoidal lead screw, and the self-locking function can be selected by the user.

[0007] Preferably, a pull rope sensor is provided on one side of the servo motor, and the pull rope sensor is electrically connected to the servo motor.

[0008] Preferably, the planetary reducer is provided with a synchronous gear at its bottom, and a magnetic induction sensor is provided on one side of the synchronous gear. A ball screw is provided on one side of the magnetic induction sensor, and the ball screw is meshed and rotatably connected with the synchronous gear.

[0009] Preferably, a nylon tube seat is provided inside the guide aluminum sleeve, and a hexagonal shaft is provided below the nylon tube seat.

[0010] Preferably, a bearing is provided at the bottom of the hexagonal shaft, and the ball screw is connected to the hexagonal shaft by a gear.

[0011] Through the above scheme, the output gear simultaneously drives the power gear installed at the lower part of the hexagon, realizing the transmission of power to the upper level. The same principle is used to transmit power and lift to the next level in sequence, thus realizing the transmission of power and synchronous lifting.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. In this utility model, the planetary reducer reduces the speed of the servo motor and amplifies its torque. The synchronous gear then transmits the power to the output gear. The output gear is connected to the ball screw to realize the lifting and lowering of the second stage tube. At the same time, the output gear drives the power gear installed at the lower part of the hexagon to realize the transmission of power to the next stage. The same principle is used to transmit power and lift to the next stage in sequence, thus realizing the transmission of power and synchronous lifting and lowering. This achieves a higher compression ratio, a lower base height, and a higher lifting stroke.

[0014] 2. In this utility model, a set screw is provided between the guide aluminum sleeves. By adjusting the force of the set screw, the swaying gap during the lifting process is reduced, and the running resistance is increased to achieve structural self-locking. In this way, structural self-locking can be achieved without replacing the trapezoidal lead screw, and self-locking can be selected by the user. Attached Figure Description

[0015] Figure 1 This is the overall front view of the present invention;

[0016] Figure 2 This is a schematic diagram of the overall internal structure of this utility model.

[0017] In the diagram: 1. Tank cable chain; 2. Aluminum profile tube; 3. Base; 201. Top plate; 202. Guide aluminum sleeve; 203. Nylon tube seat; 204. Hexagonal shaft; 205. Bearing; 301. Servo motor; 302. Pull rope sensor; 303. Planetary reducer; 304. Ball screw; 305. Magnetic induction sensor; 306. Synchronous gear. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] To address the issue that single-stage telescopic booms have excessively large extension ratios, making them unsuitable for low foundation requirements and large strokes, multi-stage lifting booms with trapezoidal lead screws suffer from high rotational resistance, making synchronous lifting impossible, or complicating the structure and further reducing transmission efficiency; please refer to [link to relevant documentation]. Figure 1-2 The present invention provides the following solution:

[0020] A multi-section telescopic precision lifting rod positioning device includes an aluminum profile tube 2 and a base 3. The base 3 is located at the bottom of the aluminum profile tube 2. Multiple guide aluminum sleeves 202 are provided inside the aluminum profile tube 2. The guide aluminum sleeves 202 are telescopically connected to the aluminum profile tube 2 and slidably connected to each other. A top plate 201 is provided on the top of the guide aluminum sleeves 202. The top plate 201 is connected to the guide aluminum sleeves 202 through a slot. A tank drag chain 1 is provided on one side of the aluminum profile tube 2. A planetary reducer 303 is provided on one side of the base 3. A servo motor 301 is provided above the planetary reducer 303.

[0021] In this embodiment, the servo motor 301 is equipped with a brake. Even if the brake of the servo motor 301 is damaged, the state can be kept unchanged by the structural self-locking, reducing the occurrence of dangerous situations. In order to ensure accuracy and realize closed-loop control of the system, a pull rope sensor 302 is added at the end. The system is controlled by PID algorithm based on the value returned by the pull rope sensor 302, which can make the positioning accuracy and repeatability of the lifting rod better than 0.1mm.

[0022] A set screw is provided between the guide aluminum sleeves 202. By adjusting the force of the set screw, the swaying gap during the lifting process is reduced, and the running resistance is increased to achieve structural self-locking. In this way, structural self-locking can be achieved without replacing the trapezoidal lead screw, and the self-locking can be selected by the user.

[0023] A pull rope sensor 302 is provided on one side of the servo motor 301. The pull rope sensor 302 is electrically connected to the servo motor 301. A synchronous gear 306 is provided at the bottom of the planetary reducer 303. A magnetic induction sensor 305 is provided on one side of the synchronous gear 306. A ball screw 304 is provided on one side of the magnetic induction sensor 305. The ball screw 304 is meshed and rotated with the synchronous gear 306. A nylon tube seat 203 is provided inside the guide aluminum sleeve 202. A hexagonal shaft 204 is provided below the nylon tube seat 203. A bearing 205 is provided at the bottom of the hexagonal shaft 204. The ball screw 304 and the hexagonal shaft 204 are connected by gears.

[0024] In this embodiment, the planetary reducer 303 reduces the speed and amplifies the torque of the servo motor 301, and then the synchronous gear 306 transmits the power to the output gear. The output gear is connected to the ball screw 304 to realize the lifting and lowering of the second stage tube. At the same time, the output gear drives the power gear installed at the lower part of the hexagon 204 to realize the transmission of power to the upper stage. The same principle is used to transmit power and lift to the next stage in sequence, thus realizing the transmission of power and synchronous lifting and lowering.

[0025] Working principle: The planetary reducer 303 reduces the speed and amplifies the torque of the servo motor 301, and then the synchronous gear 306 transmits the power to the output gear. The output gear is connected to the ball screw 304 to realize the lifting and lowering of the second stage tube. At the same time, the output gear drives the power gear installed at the lower part of the hexagon 204 to realize the transmission of power to the upper stage. The same principle is used to transmit power and lift to the next stage in sequence, thus realizing the transmission of power and synchronous lifting and lowering.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-section telescopic precision lifting rod positioning device, characterized in that, The device includes an aluminum profile tube (2) and a base (3). The base (3) is located at the bottom of the aluminum profile tube (2). The aluminum profile tube (2) is provided with multiple guide aluminum sleeves (202). The guide aluminum sleeves (202) are telescopically connected to the aluminum profile tube (2) and slidably connected to each other. The top of the guide aluminum sleeves (202) is provided with a top plate (201). The top plate (201) is connected to the guide aluminum sleeves (202) through a slot. A tank drag chain (1) is provided on one side of the aluminum profile tube (2). A planetary reducer (303) is provided on one side of the base (3). A servo motor (301) is provided above the planetary reducer (303).

2. The multi-section telescopic precision lifting rod positioning device according to claim 1, characterized in that: A pull rope sensor (302) is provided on one side of the servo motor (301), and the pull rope sensor (302) is electrically connected to the servo motor (301).

3. The multi-section telescopic precision lifting rod positioning device according to claim 1, characterized in that: The planetary reducer (303) has a synchronous gear (306) at its bottom and a magnetic induction sensor (305) on one side of the synchronous gear (306). A ball screw (304) is provided on one side of the magnetic induction sensor (305), and the ball screw (304) is meshed and rotated with the synchronous gear (306).

4. The multi-section telescopic precision lifting rod positioning device according to claim 1, characterized in that: The guide aluminum sleeve (202) is provided with a nylon tube seat (203) inside, and a hexagonal shaft (204) is provided below the nylon tube seat (203).

5. The multi-section telescopic precision lifting rod positioning device according to claim 4, characterized in that: The bottom of the hexagonal shaft (204) is provided with a bearing (205), and the ball screw (304) is connected to the hexagonal shaft (204) by a gear.

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