Novel electric push rod with self-heat-dissipation function

Abstract

The utility model discloses a novel electric push rod with a self-heat-dissipation function. The novel electric push rod comprises a supporting seat, and a driving motor, a telescopic screw rod and a transmission gear set which are arranged on the supporting seat, the driving motor is in transmission fit with the telescopic screw rod through a transmission gear set; the lower end of a transmission shaft of the driving motor penetrates out of the driving motor to form an extending section, and a set of cooling fans are installed on the extending section. A transmission shaft of the driving motor is of an extending structure, and a cooling fan is installed on an extending part of the transmission shaft. Under the condition that the driving motor continuously works, the cooling fan is synchronously driven to work, heat generated in the driving motor is led out, and the cooling effect is achieved; the working performance of the motor is improved, the working life of the motor is prolonged, and overheating shutdown of the motor and even safety accidents are avoided.

Description

Technical Field

[0001] This utility model belongs to the field of electric linear actuator technology, and relates to a novel electric linear actuator with self-heating function. 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 lack heat dissipation for the motor during operation. This can easily lead to motor overheating during prolonged continuous operation, resulting in reduced motor performance and lifespan. In severe cases, it can even cause the motor to shut down due to overheating, or even lead to safety accidents. Utility Model Content

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

[0004] A novel electric linear actuator with self-heating function includes: a support base and a drive motor, a telescopic screw, and a transmission gear set mounted on the support base; the drive motor and the telescopic screw are connected by the transmission gear set.

[0005] The lower end of the drive shaft of the drive motor extends out from the drive motor to form an extension section, and a set of cooling fans is installed on the extension section.

[0006] As a further embodiment of this utility model: a set of support frames is also provided at the lower end of the drive motor; the support frames are nested on the extension section of the transmission shaft, and support feet are provided on both sides of the support frames, with the other end of the support feet fixedly installed on the housing of the drive motor.

[0007] As a further embodiment of this utility model: the telescopic screw includes: a movable nut movably mounted on the support base and a working screw installed inside the movable nut;

[0008] The movable nut has a driven gear nested inside it, and the movable nut achieves transmission engagement with the transmission gear set through the driven gear.

[0009] As a further embodiment of this utility model, the telescopic screw also includes a screw sleeve, which is disposed at the lower end of the movable nut and nested on the working screw to achieve the protection of the working screw.

[0010] The beneficial effects of this utility model are as follows: The drive shaft of the drive motor adopts an extended structure, and a cooling fan is installed in the extension of the drive shaft; the cooling fan is driven synchronously when the drive motor is working continuously, so as to dissipate the heat generated in the drive motor and achieve the cooling effect; the working performance and service life of the motor are improved, and the motor is prevented from overheating and shutting down, or even causing safety accidents. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is another structural schematic diagram of this utility model.

[0013] Figure 3 This is a schematic diagram of the installation structure of the cooling fan 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 1-3 In this embodiment of the present invention, a novel electric push rod with self-heating function includes: a support base 1 and a drive motor 3, a telescopic screw 2, and a transmission gear set 4 mounted on the support base 1; the telescopic screw 2 includes: a movable nut 22 movably mounted on the support base 1 and a working screw 21 installed inside the movable nut 22; during operation, the movable nut 22 rotates to drive the working screw 21 to achieve telescopic operation; a driven gear 23 is nested on the movable nut 22, and the transmission shaft 31 of the drive motor 3 and the driven gear 23 of the telescopic screw 2 are connected by the transmission gear set 4 for transmission.

[0019] The lower end of the drive shaft 31 extends out of the drive motor 3 to form an extension section 32, and a set of cooling fans 5 is installed on the extension section 32. When the drive motor 3 drives the telescopic screw 2 to work, the drive shaft 31 will drive the cooling fans 5 to work synchronously. This achieves the effect of heat dissipation by discharging the heat generated in the drive motor 3 through the cooling fans 5 when the drive motor 3 is working continuously.

[0020] Furthermore, a set of support frames 6 is provided at the lower end of the drive motor 3; the support frames 6 are nested on the extension section 32 of the transmission shaft 31, and support feet 61 are provided on both sides of the support frames 6, with the other end of the support feet 61 fixedly installed on the housing of the drive motor 3; providing external structural support for the extension section 32 of the transmission shaft 31, and preventing the transmission shaft 31 from shifting or bending during long-term operation.

[0021] Furthermore, the telescopic screw 2 also includes a screw sleeve 32, which is located at the lower end of the movable nut 22 and nested on the working screw 21 to protect the working screw 21.

[0022] 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.

[0023] 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 novel features disclosed herein.

Claims

1. A novel electric linear actuator with self-heating function, characterized in that, include: The support base and the drive motor, telescopic screw, and transmission gear set mounted on the support base; the drive motor and the telescopic screw are connected by the transmission gear set. The lower end of the drive shaft of the drive motor extends out of the drive motor to form an extension section, and a set of cooling fans is installed on the extension section.

2. A novel electric linear actuator with self-heating function according to claim 1, characterized in that, A set of support frames is also provided at the lower end of the drive motor; the support frames are nested on the extension section of the drive shaft, and support feet are provided on both sides of the support frames, with the other end of the support feet fixedly installed on the housing of the drive motor.

3. A novel electric linear actuator with self-heating function according to claim 1, characterized in that, The telescopic screw includes: a movable nut movably mounted on the support base and a working screw installed inside the movable nut; The movable nut has a driven gear nested inside it, and the movable nut achieves transmission engagement with the transmission gear set through the driven gear.

4. A novel electric linear actuator with self-heating function according to claim 3, characterized in that, The telescopic screw also includes a screw sleeve, which is located at the lower end of the movable nut and nested on the working screw to protect the working screw.

Images