A transmission and an intelligent transmission control system

Abstract

The present invention provides a transmission, comprising: a housing; a driving member disposed within the housing and capable of being drivingly connected to a driver located outside the housing; a transmission assembly disposed within the housing and drivingly connected to the driving member; an output shaft disposed within the housing and drivingly connected to the transmission assembly; a follower assembly disposed within the housing adjacent to the transmission assembly and drivingly connected to the driving member; and a limiting member disposed within the housing and connected to the transmission assembly and the follower assembly respectively. The limiting member is configured to provide a limiting driving force along the driving direction to the transmission assembly, and the driving direction is the tangential direction of the axis circle where the transmission stroke is located. The structure is compact, there is no virtual position in the transmission, and it has a good transmission effect. The present invention also provides an intelligent transmission control system applying the transmission.

Description

Technical Field

[0001] The present invention relates to the field of intelligent transmission technology, and more specifically, particularly to a transmission, and an intelligent transmission control system including the transmission. Background Art

[0002] With the rapid development of the times and the improvement of people's living standards, the degree of industrialization and intelligence has gradually increased. In the fields of automobiles, industrial equipment, household appliances, etc., transmission devices or transmission systems are widely used.

[0003] For example, there are many intelligent components or devices on automobiles, such as electric table boards, electric air-conditioning vents, electric rearview mirrors, etc. These components or devices rely on in-vehicle chips, transmission mechanisms, etc. to achieve automatic control of various application scenarios.

[0004] Among them, the transmission is an important transmission component. Existing transmissions have problems such as complex structure, large volume, or transmission play, and cannot well meet the needs of users. Summary of the Invention

[0005] In view of the above, the present invention aims to solve at least one of the technical problems existing in the prior art. For this reason, the present invention provides a transmission and an intelligent transmission control system, which avoid the occurrence of play regression of the transmission component in the stopped state, and do not additionally increase the transmission resistance, and the transmission has a simple structure and is suitable for application in large-scale industrial production.

[0006] To this end, in a first aspect, an embodiment of the present invention provides a transmission, including:

[0007] A housing;

[0008] A driving member, disposed in the housing and capable of being drivingly connected to a driver located outside the housing;

[0009] A transmission component, disposed in the housing and transmission-connected to the driving member;

[0010] An output shaft, disposed in the housing and transmission-connected to the transmission component;

[0011] A follower component, disposed in the housing adjacent to the transmission component and transmission-connected to the driving member; and,

[0012] A limiting member, disposed in the housing and respectively connected to the transmission component and the follower component, the limiting member being configured to provide a limiting force along the driving direction to the transmission component, and the driving direction being the tangential direction of the axis circle where the transmission stroke is located.

[0013] Preferably, the transmission assembly includes a meshing first worm and a first worm wheel. The first worm is drivingly connected to the driving member. The first worm wheel is fixedly sleeved on the output shaft. The limiting member is connected to the first worm wheel and the follower assembly.

[0014] Preferably, the follower assembly includes a meshing second worm and a second worm wheel. The second worm is drivingly connected to the driving member. The second worm wheel is movably sleeved on the output shaft. The limiting member is connected to the first worm wheel and the second worm wheel.

[0015] Preferably, the limiting member includes a torsion spring. The torsion spring is sleeved on the output shaft. Two ends of the torsion spring are respectively fixedly connected to the first worm wheel and the second worm wheel. The torsion spring is configured to be torsionally compressed to provide a limiting driving force along the driving direction to the first worm wheel.

[0016] Preferably, the output shaft is provided with an external spline, and the first worm wheel is provided with an internal spline adapted to the external spline. The output shaft is connected through the adaptation of the internal and external splines.

[0017] Preferably, the output shaft includes a connecting section and output ends located at both ends of the connecting section. The transmission assembly and the follower assembly are correspondingly arranged on the connecting section. The output ends are used for connecting to drive a load.

[0018] Preferably, the driving member includes one of a gear, a rack, a worm wheel or a worm.

[0019] Preferably, the driving member is a gear, and the number of driving teeth of the driving member is greater than the number of driving teeth of the transmission assembly; or, the number of driving teeth of the driving member is less than the number of driving teeth of the transmission assembly.

[0020] Preferably, the housing includes an open base and an upper cover capable of covering the base.

[0021] In a second aspect, an embodiment of the present invention further provides an intelligent transmission control system, including:

[0022] The transmission according to the first aspect;

[0023] A driver, drivingly connected to the driving member; and,

[0024] A micro control unit, controlling the driver to drive the transmission according to preset conditions to drive a load to complete an action.

[0025] The transmission and intelligent transmission control system provided by the present invention, on the basis of the driving member driving the output shaft to realize transmission through the transmission assembly, add a follower assembly and a limit member, provide a limiting force along the driving direction to the transmission assembly, compress the transmission gap of the transmission assembly in the driving direction, so that the transmission assembly and the output shaft maintain relative positions in the driving direction, and if movement is to be made in the direction opposite to the driving direction, it is necessary to overcome the limiting force, so that the output shaft cannot be easily reversed, thereby avoiding the generation of virtual transmission, and because the follower assembly is connected to the driving member through transmission, no additional transmission resistance is added, the transmission structure is simple, and the transmission effect is good; further, stable transmission and high intelligence are achieved for the intelligent transmission control system, providing users with a good user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of a three-dimensional structure of a transmission device provided by an embodiment of the present invention with the upper cover omitted;

[0027] Figure 2 for Figure 1 Schematic diagram of the three-dimensional structure of the first worm gear;

[0028] Figure 3 for Figure 1 Schematic diagram of the three-dimensional structure of some components assembled;

[0029] Figure 4 for Figure 1 Schematic diagram of the local structure along the AA section. DETAILED DESCRIPTION

[0030] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0031] The disclosure below provides many different embodiments or examples to implement different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific processes and examples of materials, but those of ordinary skill in the art can be aware of the applicability of other processes and / or the use of other materials.

[0032] The object of the present invention is to provide a transmission, which is applied to an automobile, especially to a new energy vehicle, to automatically drive a driving load device (such as an electric table board, an electric air outlet, an electric rearview mirror, etc.), and is linked with the internal control system of the new energy vehicle, so as to realize intelligent control.

[0033] Please refer to Figures 1 to 4 , the transmission includes:

[0034] A housing 10;

[0035] A driving member 20, which is arranged in the housing 10 and can be drivingly connected with a driver located outside the housing 10;

[0036] A transmission assembly 30, which is arranged in the housing 10 and is drivingly connected with the driving member 20;

[0037] An output shaft 40, which is arranged in the housing 10 and is drivingly connected with the transmission assembly 30;

[0038] A follower assembly 50, which is arranged in the housing 10 adjacent to the transmission assembly 30 and is drivingly connected with the driving member 20; and,

[0039] A limiting member 60, which is arranged in the housing 10 and is respectively connected with the transmission assembly 30 and the follower assembly 50. The limiting member 60 is configured to provide a limiting force along the driving direction to the transmission assembly 30, and the driving direction is the tangential direction of the central circle where the transmission stroke is located.

[0040] Specifically, the driving member 20, the transmission assembly 30, the output shaft 40, the follower assembly 50, and the limiting member 60 are relatively limited in position in the housing 10, and these components are configured to be limited in the housing 10 and can only perform reciprocating motions along the driving direction.

[0041] Among them, an external driver drives the driving member 20, and the driver is specifically a driving device such as a motor or a telescopic cylinder. In this embodiment, the driving member 20 drives the output shaft 40 through the transmission assembly 30, and the follower assembly 50 and the limiting member 60 provide a limiting force along the driving direction to the transmission assembly 30, so that the transmission gaps between the output shaft 40 and the transmission assembly 30 are kept in a compressed state, avoiding disorderly activities in the transmission gaps, that is, virtual position transmission. At the same time, the follower assembly 50 is drivingly connected with the driving member 20, which can avoid virtual position transmission without additionally increasing the transmission resistance.

[0042] Further, the transmission assembly 30 includes a meshing first worm 31 and a first worm gear 32. The first worm 31 is drivingly connected to the driving member 20. The first worm gear 32 is fixedly sleeved on the output shaft 40. The limiting member 60 connects the first worm gear 32 and the follower assembly 50.

[0043] In this embodiment, the transmission assembly 30 is arranged as a worm and worm gear transmission structure. The first worm 31 is provided with a first tooth portion 311 cooperating with the driving member 20 and a second tooth portion 312 cooperating with the first worm gear. The transmission assembly 30 vertically transmits the power of the driving member 20 to the output shaft 40. The worm and worm gear transmission structure realizes stable transmission and direction conversion in a compact space. It can be understood that in other embodiments, the structure of the transmission assembly 30 is not limited thereto, and a non-worm and worm gear transmission structure can also be adopted, such as a gear set with corresponding inclined teeth or a spur gear set for transmission. In addition, the first worm gear 32 is fixedly sleeved on the output shaft 40, which also optimizes the space utilization. It can be understood that other fixed connection methods can also be adopted; or, with the change of the structure of the transmission assembly 30, a transmission structure is arranged on the output shaft 40, and the output shaft 40 is drivingly connected to the transmission assembly 30.

[0044] Further, the follower assembly 50 includes a meshing second worm 51 and a second worm gear 52. The second worm 51 is drivingly connected to the driving member 20. The second worm gear 52 is movably sleeved on the output shaft 40. The limiting member 60 connects the first worm gear 32 and the second worm gear 52.

[0045] In this embodiment, the structure of the follower assembly 50 is arranged to be relatively similar to that of the transmission assembly 30, and also adopts a worm and worm gear transmission structure. The difference is that the second worm gear 52 of the follower assembly 50 is movably connected to the output shaft 40. The follower assembly 50 and the transmission assembly 30 adopt the same part structure and are arranged symmetrically, which optimizes the spatial structure of the transmission and is convenient for assembly. It can be understood that in other embodiments, the structure of the follower assembly 50 is not limited thereto and can be changed according to requirements, such as an inclined tooth mating gear set, a spur tooth mating gear set, etc.; the connection structure between the second worm gear 52 or the follower assembly 50 and the output shaft 40 can also be changed, and the change method is similar to that of the transmission assembly 30, which will not be elaborated here.

[0046] Further, the limiting member 60 includes a torsion spring. The torsion spring is sleeved on the output shaft 40. The two ends of the torsion spring are respectively fixedly connected to the first worm gear 32 and the second worm gear 52. The torsion spring is configured to be torsionally compressed to provide a limiting force along the driving direction to the first worm gear 32.

[0047] Specifically, the limiting member 60 is configured as a torsion spring which is sleeved on the output shaft 40 and located between the first worm gear 32 and the second worm gear 52. The two ends of the torsion spring are respectively connected and cooperated with the inner sides of the first worm gear 32 and the second worm gear 52. Specifically, the opposite surfaces of the first worm gear 32 and the second worm gear 52 are respectively provided with limiting holes 321 (521). The two ends of the torsion spring are respectively connected and limited with the corresponding limiting holes 321 (521), so as to keep the torsion spring torsion compression to a preset stroke. After the first worm gear 32 and the second worm gear 52 are respectively assembled with the first worm 31 and the second worm 51, the compression stroke of the torsion spring is continuously maintained. The compression of the torsion spring will provide a rebound force to the first worm gear 32 and the second worm gear 52 accordingly. The rebound force will compress the transmission gap between the first worm gear 32 and the first worm 31, and between the second worm gear 52 and the second worm 51, so as to realize the unidirectional contact between the teeth and keep the contact stable. The torsion direction of the torsion spring is not limited, and it can be a torsion spring that rotates clockwise or counterclockwise, as long as it can provide the first worm gear 32 with a limiting force along the clockwise driving direction or the counterclockwise driving direction.

[0048] Further, the output shaft 40 is provided with an external spline 41, and the first worm wheel 32 is provided with an internal spline 322 adapted to the external spline 41. In this embodiment, the spline fits, the structure is simple and the connection is stable. It can be understood that in other embodiments, other connection methods can also be used, such as pin fit.

[0049] Furthermore, the output shaft 40 includes a connecting section 42 and output ends 43 located at both ends of the connecting section 42, the transmission assembly 30 and the follower assembly 50 are correspondingly arranged at the connecting section 42, and the output end 43 is used to connect the drive load. Specifically, in a preferred embodiment, the external spline 41 is arranged at the connecting section 42, and the output end 43 is arranged as a connection structure with a rectangular cross-section. The two ends of the output shaft 40 can drive the drive load simultaneously or separately, expanding the application scenario of the transmission. It can be understood that the structure of the output shaft 40 can also be changed, for example, a single-sided output end 43 is adopted to reduce the volume of the transmission accordingly.

[0050] Furthermore, the driving member 20 includes one of a gear, a rack, a worm wheel or a worm. The driving member 20 can be specifically configured as a variety of driving structures to simultaneously transmit the power of the external driver to the transmission assembly 30 and the follower assembly 50, that is, the driving member 20 can be a gear, a rack, a worm wheel or a worm that is simultaneously connected to the transmission assembly 30 and the follower assembly 50.

[0051] In a preferred embodiment, the driving member 20 adopts a gear structure, and the driving member 20 is connected to an external motor, which has a compact structure and high transmission efficiency.

[0052] Further, the driving member is a gear, and the number of transmission teeth of the driving member 20 is greater than the number of transmission teeth of the transmission assembly 30. In this embodiment, the transmission efficiency is further improved by using the driving member 20 with a large number of teeth to drive the transmission assembly 30 with a small number of teeth. It can be understood that according to the requirements of different drive loads and corresponding to different transmission efficiency requirements, the number of teeth of the driving member 20 can be changed accordingly. For example, the number of transmission teeth of the driving member 20 is set to be smaller than the number of transmission teeth of the transmission assembly 30 to perform a reduction transmission requirement to meet the refined transmission control.

[0053] Furthermore, the housing 10 includes an open base 11 and an upper cover (not shown) that can cover the base 11. Specifically, the base 11 is provided with a receiving space corresponding to the driving member 20, the transmission assembly 30, the output shaft 40, the follower assembly 50, and the stopper 60, which are closely adjacent to each other, so that the overall structure of the transmission is compact and easy to assemble.

[0054] The embodiment of the present invention further provides an intelligent transmission control system, comprising:

[0055] According to the transmission as described above;

[0056] A driver, drivingly connected to the driving member 20; and

[0057] The micro control unit controls the driver to drive the transmission device according to preset conditions, so as to drive the driving load to complete the action.

[0058] In this embodiment, by integrating the actuator, driver and microcontroller unit, intelligent transmission control of the driving load is realized. For example, the microcontroller unit controls the opening or closing of tables, chairs and table tops according to voice commands, and controls the air-conditioning outlets to drive the work in different ways by sensing different temperature parameters, humidity parameters, etc. It can be understood that in other embodiments, the intelligent transmission control system can also be applied to industrial production equipment, for example, according to the requirements of industrial processes, the fixture or workbench can be controlled to rotate or move automatically to realize predetermined engineering control.

[0059] The transmission device and intelligent transmission control system provided by the present invention, on the basis of the driving member 20 driving the output shaft 40 through the transmission assembly 30 to realize transmission, add a follower assembly 50 and a limit member 60, provide a limiting force along the driving direction to the transmission assembly 30, compress the transmission gap of the transmission assembly 30 in the driving direction, so that the transmission assembly 30 and the output shaft 40 maintain a relative position in the driving direction, and if movement is to be made in the direction opposite to the driving direction, it is necessary to overcome the limiting force, so that the output shaft 40 cannot be easily reversed, thereby avoiding the generation of virtual transmission, and because the follower assembly 50 is connected to the driving member 20 for transmission, no additional transmission resistance is added, the transmission device has a simple structure and good transmission effect; further, stable transmission and high intelligence are achieved for the intelligent transmission control system, providing users with a good use experience.

[0060] 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, without contradiction.

[0061] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A transmission, characterized in that, Comprising: A housing; A driving member, disposed within the housing and capable of being drivingly connected to a driver located outside the housing; A transmission assembly, disposed within the housing and drivingly connected to the driving member; An output shaft, disposed within the housing and drivingly connected to the transmission assembly; A follower assembly, disposed within the housing adjacent to the transmission assembly and drivingly connected to the driving member; and A limiting member, disposed within the housing and respectively connected to the transmission assembly and the follower assembly, the limiting member being configured to provide a limiting driving force along the driving direction to the transmission assembly, the driving direction being the tangential direction of the axis circle where the transmission stroke is located; The transmission assembly includes a meshing first worm and a first worm gear, the first worm being drivingly connected to the driving member, the first worm gear being fixedly sleeved on the output shaft, and the limiting member being connected to the first worm gear and the follower assembly; The follower assembly includes a meshing second worm and a second worm gear, the second worm being drivingly connected to the driving member, the second worm gear being movably sleeved on the output shaft, and the limiting member being connected to the first worm gear and the second worm gear; The limiting member includes a torsion spring, the torsion spring being sleeved on the output shaft, and two ends of the torsion spring being respectively fixedly connected to the first worm gear and the second worm gear, the torsion spring being configured to be torsionally compressed to provide a limiting driving force along the driving direction to the first worm gear.

2. The transmission according to claim 1, wherein, The output shaft is provided with an external spline, and the first worm gear is provided with an internal spline adapted to the external spline, and the output shaft is connected by the adaptation of the internal and external splines.

3. The transmission according to claim 1, characterized in that The output shaft includes a connecting section and output ends located at both ends of the connecting section, the transmission assembly and the follower assembly are correspondingly disposed on the connecting section, and the output ends are used for connecting a driving load.

4. The transmission according to claim 1, characterized in that, The driving member includes one of a gear, a rack, a worm gear or a worm.

5. The transmission according to claim 4, characterized in that, The driving member is a gear, and the number of driving teeth of the driving member is greater than the number of driving teeth of the transmission assembly; or the number of driving teeth of the driving member is less than the number of driving teeth of the transmission assembly.

6. The transmission according to claim 1, wherein The housing includes an open base and an upper cover capable of covering the base.

7. An intelligent transmission control system, characterized in that, Comprising: A transmission according to any one of claims 1-6; A driver, drivingly connected to the driving member; And A micro control unit, controlling the driver to drive the transmission according to a preset condition to drive a driving load to complete an action.

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