Combined type linear driving device based on worm gear, worm and screw

Abstract

The invention relates to the field of mechanical transmission, and particularly discloses a combined type linear driving device based on a worm gear, a worm and a screw, the combined type linear driving device comprises the worm, one side of the worm is meshed with the worm gear, and the middle of the worm gear is in threaded connection with the screw; through ingenious combination of the worm gear, the worm and the screw rod, conversion from rotary motion to linear motion is achieved, the overall structure is compact, and the occupied space is small; the driving assembly is introduced to serve as a power source, it is ensured that the worm can stably and controllably rotate, and therefore the whole system is driven to work; the fixing assembly provides stable support for the driving assembly and the worm gear, and the stability and reliability of the system are guaranteed; and the to-be-driven assembly is connected with the screw rod, so that the motion conversion from rotation to straight line is realized, and the linear driving requirement in practical application is met.

Description

Technical Field

[0001] The invention belongs to the field of mechanical transmission, in particular to a composite linear drive device based on a worm gear, a worm and a screw. Background Art

[0002] Transmission mechanism refers to a device or system that transmits one power or motion to another. It is an indispensable part of mechanical equipment, responsible for transmitting power from one part of the machine to another, so that the machine or machine parts can move or operate.

[0003] In traditional technologies, the conversion from rotational motion to linear motion often requires complex transmission mechanisms, which are often bulky, occupy a large space, and have low transmission efficiency. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a composite linear drive device based on a worm gear, a worm and a screw, so as to solve the problem in the prior art that the conversion from rotational motion to linear motion often requires complex transmission mechanisms, which are often bulky, occupy a large space, and have low transmission efficiency.

[0005] A composite linear drive device based on a worm wheel, a worm and a screw comprises a worm, one side of the worm is meshed with a worm wheel, and the middle thread of the worm wheel is connected with the screw.

[0006] Preferably, it also includes a driving component, a fixing component and a component to be driven;

[0007] The driving assembly is connected to the worm and is used to drive the worm to rotate;

[0008] The driving component is installed on the fixed component, the worm wheel is installed on the fixed component through a bearing, and the screw rod is connected to the component to be driven.

[0009] Preferably, it also includes a driving component, a fixing component and a component to be driven;

[0010] The driving assembly is connected to the worm and is used to drive the worm to rotate;

[0011] The worm and the worm wheel are both mounted on the driven component via bearings, and the driving component is fixedly mounted on the driven component;

[0012] Both ends of the screw rod are fixedly mounted on the fixing assembly.

[0013] Preferably, it also includes a component to be rotated;

[0014] The component to be rotated is fixedly mounted on the worm gear.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The ingenious combination of worm gear, worm and screw realizes the conversion from rotary motion to linear motion, and the overall structure is compact and occupies little space.

[0017] By introducing the drive assembly as the power source, it is ensured that the worm can rotate stably and controllably, thereby driving the entire system to work; the fixed assembly provides a solid support for the drive assembly and the worm gear, ensuring the stability and reliability of the system; the drive assembly is connected to the screw, realizing the motion conversion from rotation to linear motion, meeting the linear drive requirements in practical applications;

[0018] Through specific component configuration and installation methods, the function of the worm and worm wheel moving up and down along the screw through the driven component is realized;

[0019] By adding the component to be rotated, the device can meet both linear and rotational motion requirements, making the device more widely used in industrial automation, mechanical equipment and other fields, and able to adapt to more complex and diverse motion control requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the decomposition structure of the present invention.

[0022] In the figure: 1. worm; 2. worm wheel; 3. screw. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] like Figure 1 and Figure 2 As shown:

[0025] Embodiment 1: The present invention provides a composite linear drive device based on a worm wheel, a worm and a screw, comprising a worm 1 , a worm wheel 2 meshing on one side of the worm 1 , and a screw 3 being threadedly connected to the middle of the worm wheel 2 .

[0026] As can be seen from the above, in this device, the rotation of the worm 1 can drive the worm wheel 2 to rotate, and the rotation of the worm wheel 2 can make the screw 3 move up and down, thereby achieving a linear motion effect;

[0027] A threaded hole is provided in the middle of the worm wheel 2 for threaded connection with the screw rod 3;

[0028] When the worm wheel 2 is driven by the worm 1 to rotate, this rotational motion is converted into the linear motion of the screw 3;

[0029] The external threads of the screw 3 include, but are not limited to, ordinary threads, trapezoidal threads, rectangular threads, serrated threads and pipe threads.

[0030] Embodiment 2: This embodiment is basically the same as Embodiment 1, except that it further includes a driving component, a fixing component and a component to be driven;

[0031] The driving assembly is connected to the worm 1 and is used to drive the worm 1 to rotate;

[0032] The driving component is installed on the fixed component, the worm wheel 2 is installed on the fixed component through a bearing, and the screw rod 3 is connected to the component to be driven.

[0033] As can be seen from the above, the driving assembly in this embodiment, as the power source of the entire device, is closely connected to the worm 1 and is responsible for providing stable and controllable rotational power to the worm. It ensures that the worm can rotate at a predetermined speed and direction, thereby driving the worm wheel 2 meshing with it to rotate synchronously;

[0034] In order to ensure the stability and reliability of the device, the driving component is installed on the fixed component, and the worm wheel 2 is installed on the fixed component through the bearing, which reduces the friction resistance of the worm wheel during rotation, improves the transmission efficiency, and ensures that the worm wheel can rotate steadily and smoothly. At the same time, the use of the bearing also prolongs the service life of the worm wheel and reduces the maintenance cost of the device;

[0035] When the worm wheel rotates, the screw moves linearly along the axial direction under the action of the thread, thereby driving the driven component to move synchronously, which not only realizes the motion conversion from rotation to linear motion, but also ensures that the driven component can move according to the predetermined trajectory and speed;

[0036] In summary, this embodiment further improves the structure and function of the compound linear drive device by adding a driving component, a fixed component and a component to be driven. This design not only improves the practicality and reliability of the device, but also provides a broader space and possibility for its application in industrial automation, mechanical equipment and other fields.

[0037] Embodiment 3: This embodiment is basically the same as Embodiment 1, except that it further includes a driving component, a fixing component and a component to be driven;

[0038] The driving assembly is connected to the worm 1 and is used to drive the worm 1 to rotate;

[0039] The worm 1 and the worm wheel 2 are both mounted on the driven component through bearings, and the driving component is fixedly mounted on the driven component;

[0040] Both ends of the screw rod 3 are fixedly mounted on the fixing assembly.

[0041] As can be seen from the above, the driving assembly in this embodiment, as the power source of the entire device, is closely connected to the worm 1 and is responsible for providing stable and controllable rotational power to the worm. It ensures that the worm can rotate at a predetermined speed and direction, thereby driving the worm wheel 2 meshing with it to rotate synchronously;

[0042] The worm 1 and the worm wheel 2 are both mounted on the driven component through bearings, which reduces the friction resistance during the rotation process, improves the transmission efficiency, and ensures that the worm and the worm wheel can rotate steadily and smoothly; at the same time, since they are both mounted on the driven component, and both ends of the screw 3 are fixedly mounted on the fixed component; when the driving component is working, the driven component will move up and down along the screw 3 to reach a specified height;

[0043] The component to be driven can also be guided by a guide rod so that it can move up and down along the screw rod 3 stably.

[0044] In summary, the third embodiment introduces a driving component, a fixing component and a driven component, so that the worm 1 and the worm wheel 2 move up and down along the screw 3 through the driven component. This design not only improves the transmission efficiency and stability, but also provides a wider space and possibility for the application of the device in the fields of industrial automation, mechanical equipment, etc.

[0045] Embodiment 4: This embodiment is basically the same as Embodiments 3 and 4, except that it further includes a component to be rotated;

[0046] The component to be rotated is fixedly mounted on the worm gear 2 .

[0047] As can be seen from the above, when the worm 1 rotates and drives the worm wheel 2 to rotate synchronously, the component to be rotated will also rotate accordingly, which brings more application scenarios to the device;

[0048] For example, in automation equipment that requires both linear and rotary motion, this device can play an important role. It can simultaneously achieve the linear movement of the driven component and the rotary motion of the rotating component by driving the worm to rotate, thus meeting complex motion control requirements;

[0049] In summary, Example 4 further broadens the application scenarios and functional scope of the composite linear drive device by introducing a component to be rotated and adjusting the structure of the device accordingly. This design not only improves the practicality and flexibility of the device, but also provides a more diversified and complex solution for its application in industrial automation, mechanical equipment and other fields.

[0050] The standard parts used in the present invention can all be purchased from the market, and the special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0051] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0052] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0054] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0055] In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

[0056] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A composite linear drive device based on a worm gear, a worm and a screw, characterized in that: The invention comprises a worm (1), one side of the worm (1) is meshed with a worm wheel (2), and the middle thread of the worm wheel (2) is connected with a screw (3).

2. A composite linear drive device based on a worm gear, a worm and a screw as claimed in claim 1, characterized in that: It also includes a driving component, a fixing component and a component to be driven; The driving assembly is connected to the worm (1) and is used to drive the worm (1) to rotate; The driving component is mounted on the fixed component, the worm wheel (2) is mounted on the fixed component via a bearing, and the screw rod (3) is connected to the component to be driven.

3. A composite linear drive device based on a worm gear, a worm and a screw as claimed in claim 1, characterized in that: It also includes a driving component, a fixing component and a component to be driven; The driving assembly is connected to the worm (1) and is used to drive the worm (1) to rotate; The worm (1) and the worm wheel (2) are both mounted on the component to be driven via bearings, and the driving component is fixedly mounted on the component to be driven; Both ends of the screw rod (3) are fixedly mounted on the fixing assembly.

4. A composite linear drive device based on a worm gear, a worm and a screw as claimed in claim 2 or 3, characterized in that: Also included is a component to be rotated; The component to be rotated is fixedly mounted on the worm gear (2).

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