High-precision electric push rod structure

Abstract

The utility model discloses a kind of high-precision electric push rod structures, comprising: shell, drive motor, transmission assembly, telescopic component;Drive motor and telescopic component between transmission assembly are realized by transmission assembly transmission cooperation;Telescopic component includes: transmission screw rod, sliding nut and telescopic pipe;The upper end of transmission screw rod is installed in support seat, and is cooperated with drive motor by transmission assembly;The lower end of transmission screw rod is threaded section, and sliding nut is nested on threaded section;The upper end of telescopic pipe is nested on sliding nut;Support seat still is provided with a group of decoder switch;Telescopic pipe reciprocating control effect is realized by setting decoder switch structure, can be realized in specific stroke Control telescopic pipe, realize the effect of accurate reciprocating work;Compared with the mode of traditional position sensor control, overall structure is effectively simplified, control precision and control work flexibility are better, more can satisfy the use demand of industry.

Description

Technical Field

[0001] This utility model belongs to the field of electric linear actuator technology and relates to a high-precision electric linear actuator structure. Background Technology

[0002] Currently, electric linear actuators are a widely used drive technology, such as in automated equipment, automatic lifting platforms, and massage chairs. However, existing electric linear actuator structures mainly control the reciprocating motion of the telescopic tube by placing position sensors at both ends of the stroke. This control method is relatively cumbersome and has low control accuracy, which cannot meet the needs of some high-precision reciprocating applications. Utility Model Content

[0003] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0004] A high-precision electric linear actuator structure includes: an outer shell, a drive motor, a transmission assembly, a telescopic assembly, and a support base;

[0005] The drive motor, transmission assembly, and telescopic assembly are all mounted on the support base, and the transmission assembly enables the transmission between the drive motor and the telescopic assembly.

[0006] The telescopic assembly includes: a transmission screw, a sliding nut, and a telescopic tube; the upper end of the transmission screw is installed in the support base and cooperates with the drive motor through the transmission assembly;

[0007] The lower end of the transmission lead screw is a threaded section, and a sliding nut is nested on the threaded section to achieve a threaded fit; the upper end of the telescopic tube is nested on the sliding nut for a fixed fit.

[0008] The support base is also equipped with a set of decoder switches, the drive shaft of which is connected to the transmission assembly; and the decoder switches are electrically connected to the drive motor.

[0009] As a further embodiment of this utility model, the transmission component adopts a gear reducer structure.

[0010] As a further embodiment of this utility model: a protective shell is provided on the support base, which encloses and protects the connection positions of the transmission components, decoder switch, transmission screw, drive motor and transmission components.

[0011] The beneficial effects of this utility model are as follows: by setting a decoder switch structure to achieve the reciprocating control effect of the telescopic tube, it is possible to control the telescopic tube within a specific stroke to achieve precise reciprocating operation; compared with the traditional position sensor control method, the overall structure is effectively simplified, the control accuracy and the flexibility of the control operation are better, and it can better meet the needs of the industry. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is another structural schematic diagram of this utility model. Detailed Implementation

[0014] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. It should be understood that this application is not limited to the exemplary embodiments disclosed herein. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0015] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0016] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0017] In the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0018] Please see Figures 1-2 In this embodiment of the utility model, a high-precision electric push rod structure includes: a drive motor 1, a transmission assembly 3, a telescopic assembly 2, and a support base 5;

[0019] The drive motor 1, transmission assembly 3 and telescopic assembly 2 are all mounted on the support base 5. The transmission assembly 3 enables the transmission between the drive motor 1 and the telescopic assembly 2.

[0020] The telescopic assembly 2 includes: a transmission screw 21, a sliding nut 23, and a telescopic tube 24; the upper end of the transmission screw 21 is installed in the support base 5 and cooperates with the drive motor 1 through the transmission assembly 3;

[0021] The lower end of the transmission screw 21 is a threaded section 22, and the sliding nut 23 is nested on the threaded section 22 to achieve threaded engagement; the upper end of the telescopic tube 24 is nested on the sliding nut 23 and fixedly engaged with it, and the lower end of the telescopic tube 24 is a connecting end for connecting with the driven device structure.

[0022] The support base 5 is also equipped with a set of decoder switches 5. The drive shaft of the decoder switches 5 is driven by the transmission component 3. The stroke acquisition is achieved by acquiring the rotation of the transmission component 3. The decoder switches 5 are also electrically connected to the drive motor 1.

[0023] During operation, the drive motor 1 drives the transmission screw 21 to rotate in the forward and reverse directions, causing the sliding nut 23 to reciprocate along its axial direction in the threaded section 22, thereby realizing the linear reciprocating extension and retraction of the telescopic tube 24.

[0024] During operation, the decoder switch 5 obtains the working stroke of the telescopic tube 24 through the transmission component 3, thereby controlling the telescopic tube 24 to work precisely within a specific stroke. In actual use, users can input the required stroke data into the decoder switch 5 to meet different usage needs.

[0025] Furthermore, the transmission component 3 adopts a gear reducer structure, which has specific characteristics such as high-efficiency transmission, compact structure, high load-bearing capacity, long service life and low noise; and the transmission process is more stable, enabling the decoder switch 5 to accurately obtain the current stroke state of the telescopic tube 24, ensuring the accuracy of stroke control.

[0026] Furthermore, a protective shell is provided on the support base 5, which encloses and protects the connection positions of the transmission component 3, decoder switch 5, transmission screw 21, drive motor 1 and transmission component 3; this can effectively improve the stability of the transmission connection.

[0027] It should also 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0028] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novelty disclosed herein.

Claims

1. A high-precision electric linear actuator structure, characterized in that, include: The outer casing, drive motor, transmission components, telescopic components, and support base; The drive motor, transmission assembly, and telescopic assembly are all mounted on the support base, and the transmission assembly enables the transmission between the drive motor and the telescopic assembly. The telescopic assembly includes: a transmission screw, a sliding nut, and a telescopic tube; the upper end of the transmission screw is installed in the support base and cooperates with the drive motor through the transmission assembly; The lower end of the transmission lead screw is a threaded section, and a sliding nut is nested on the threaded section to achieve a threaded fit; the upper end of the telescopic tube is nested on the sliding nut for a fixed fit. The support base is also equipped with a set of decoder switches, the drive shaft of which is connected to the transmission assembly; and the decoder switches are electrically connected to the drive motor.

2. The high-precision electric linear actuator structure according to claim 1, characterized in that, The transmission assembly adopts a gear reducer structure.

3. The high-precision electric linear actuator structure according to claim 1, characterized in that, The support base is equipped with a protective shell, which protects the transmission components, decoder switch, transmission screw, drive motor and transmission components.

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