Transmission, transmission shell and transmission magnet fixing device

Abstract

The utility model relates to the technical field of transmission internal parts, in particular to a transmission, a transmission shell and a transmission magnet fixing device. The utility model provides a speed changer which comprises a speed changer shell, a magnet and at least one elastic element. A magnet groove is formed in the speed changer shell and used for containing the speed changer magnet. And the elastic element is arranged in a gap between the transmission magnet and the magnet groove so as to fasten the transmission magnet in the magnet groove. According to the transmission, the elastic element and the specially-designed groove structure are introduced, under the condition that the overall structure of the transmission shell is not changed, the risk that the magnet is damaged is reduced, and the overall service life of the transmission is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission internal parts, and more specifically to a transmission, a transmission housing and a transmission magnet fixing device. Background Art

[0002] As the core component of automobile power transmission, the complexity and variability of the internal environment of the transmission must be fully taken into account. During the operation of the transmission, metal foreign matter will be generated due to factors such as wear and vibration on the gear surface. In order to effectively prevent these foreign matter from entering the bearing or gear meshing area and thus affecting the performance and service life of the transmission, magnets are usually installed inside the transmission to use the magnetic properties of the magnets to absorb the metal foreign matter.

[0003] Figure 1 The schematic diagram of the installation position of conventional transmission magnets in the transmission is disclosed, such as Figure 1 In the transmission shown, the dotted line indicates the installation position of the transmission magnet. The magnet is assembled in the housing by means of clearance fit. However, when the vehicle is driving under bumpy conditions, the magnet is prone to shaking. Long-term and severe shaking will increase the risk of magnet breakage, thereby reducing the overall reliability of the transmission.

[0004] Figure 2a , Figure 2b and Figure 2c The partial schematic diagrams of the conventional transmission magnet in the Z direction, Y direction and X direction are respectively revealed, such as Figure 2a , Figure 2b and Figure 2c As shown in the figure, the gaps between the magnets in the three directions of X, Y, and Z are relatively large, which makes them easy to shake during vehicle driving. Especially under frequent bumpy conditions, the free shaking of the magnets in the housing will significantly increase the risk of their breakage, thus affecting the reliability of the transmission.

[0005] It should be clarified that the definition of direction is: for the whole vehicle, the X direction refers to the forward direction of the whole vehicle, the Y direction refers to the width direction of the whole vehicle, and the Z direction represents the height direction of the whole vehicle. Correspondingly, for the magnet, its X direction corresponds to the width direction of the magnet, the Y direction corresponds to the length direction of the magnet, and the Z direction corresponds to the height direction of the magnet. Utility Model Content

[0006] The utility model aims to provide a transmission, a transmission housing and a transmission magnet fixing device, so as to solve the reliability problem caused by the shaking of the magnets arranged inside the transmission in the prior art.

[0007] To achieve the above object, the present utility model provides a transmission, comprising a transmission housing, a magnet and at least one elastic element:

[0008] A magnet groove is provided in the transmission housing for placing the transmission magnet;

[0009] The elastic element is disposed in the gap between the transmission magnet and the magnet groove to fasten the transmission magnet in the magnet groove.

[0010] In some embodiments, the elastic element is provided with a groove structure at the bottom;

[0011] The groove structure is for inserting the transmission magnet and is adapted to the size of the transmission magnet;

[0012] The elastic element is closely connected to the transmission magnet and is fastened in the transmission housing as a whole.

[0013] In some embodiments, the elastic element is of an integral structure.

[0014] In some embodiments, the fitting manner of the groove structure of the elastic element and the size of the transmission magnet is an interference fit.

[0015] In some embodiments, a plurality of through-hole structures are provided at the top of the elastic element:

[0016] The through-hole structures connect the top surface of the elastic element to the groove structure.

[0017] In some embodiments, the side of the groove structure at the bottom of the elastic element is a stepped structure.

[0018] In some embodiments, a ramp surface is provided at the corner of the top of the elastic element:

[0019] The number of the ramp surfaces is two and they are provided at two opposite corners at the top.

[0020] In some embodiments, the compression rate of the elastic element in the length direction of the magnet is set within the range of 5.3% to 27.8%.

[0021] To achieve the above object, the present utility model provides a transmission housing, comprising a magnet groove, a magnet and at least one elastic element:

[0022] The magnet groove is provided in the transmission housing for placing the transmission magnet;

[0023] The elastic element is disposed in the gap between the transmission magnet and the magnet groove to fasten the transmission magnet in the magnet groove.

[0024] To achieve the above object, the present utility model provides a transmission magnet fixing device, which includes at least one elastic element:

[0025] The elastic element is provided with a groove structure at the bottom;

[0026] The groove structure is used to insert a transmission magnet and is adapted to the size of the transmission magnet;

[0027] The elastic element is closely connected to the transmission magnet and is fastened as a whole in the transmission housing.

[0028] A transmission, a transmission housing and a transmission magnet fixing device provided by the present utility model specifically have the following beneficial effects:

[0029] 1) The stability of the magnet in the magnet groove is significantly improved, effectively resisting the shaking caused by the bumps during the vehicle driving, thereby reducing the risk of magnet damage;

[0030] 2) The design of the device is simple and compact, providing convenient conditions for mass production;

[0031] 3) By improving the stability and durability of the magnet, the overall service life of the transmission is effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The above and other features, properties and advantages of the present utility model will become more obvious through the following description with reference to the drawings and embodiments. In the drawings, the same reference numerals always represent the same features, where:

[0033] Figure 1 The schematic diagram of the installation position of the conventional transmission magnet in the transmission is revealed;

[0034] Figure 2a The partial schematic diagram of the conventional transmission magnet in the Z direction is revealed;

[0035] Figure 2b The partial schematic diagram of the conventional transmission magnet in the Y direction is revealed;

[0036] Figure 2c The partial schematic diagram of the conventional transmission magnet in the X direction is revealed;

[0037] Figure 3a The first schematic diagram of the elastic element structure according to an embodiment of the present utility model is revealed;

[0038] Figure 3b The second schematic diagram of the elastic element structure according to an embodiment of the present utility model is revealed;

[0039] Figure 4aReveals the Y-direction assembly schematic diagram of the magnet slot according to an embodiment of the present utility model;

[0040] Figure 4b Reveals the Y-direction assembly schematic diagram of the elastic element according to an embodiment of the present utility model;

[0041] Figure 5a Reveals the partial schematic diagram of the transmission in the Y direction according to an embodiment of the present utility model;

[0042] Figure 5b Reveals the partial schematic diagram of the transmission in the X direction according to an embodiment of the present utility model;

[0043] Figure 5c Reveals the partial schematic diagram of the transmission in the Z direction according to an embodiment of the present utility model;

[0044] Figure 5d Reveals the partial schematic diagram of the transmission according to an embodiment of the present utility model.

[0045] The meanings of the reference numerals in the figures are as follows:

[0046] 100 Elastic element;

[0047] 110 Groove structure;

[0048] 120 Through-hole structure;

[0049] 200 Transmission magnet;

[0050] 300 Magnet slot. Detailed implementation manners

[0051] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model.

[0052] In the description of this specification, the descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. 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 can be combined in a suitable manner in any one or more embodiments or examples.

[0053] In view of the problems existing in the prior art, the present utility model proposes a transmission, including a transmission housing, a magnet, and at least one elastic element:

[0054] A magnet slot is provided inside the transmission housing for placing a transmission magnet.

[0055] The elastic element is disposed in the gap between the transmission magnet and the magnet slot to fasten the transmission magnet in the magnet slot.

[0056] The present utility model proposes a transmission. An elastic element is provided in the gap between the transmission housing and the transmission magnet. By arranging the elastic element in the gap between the magnet and the side wall of the magnet slot, a "shock-absorbing layer" is formed, which can not only effectively prevent the magnet from shaking during the operation of the transmission, but also absorb part of the vibration energy, reduce noise, and improve the overall running stability of the transmission.

[0057] It should be noted that the elastic element can be customized in shape according to the size of the gap between the magnet slot and the magnet. Generally, it is annular or strip-shaped to maximize the filling of the gap and provide uniform supporting force. The number of elastic elements is not fixed and can be adjusted according to specific requirements.

[0058] The following introduces a new type of elastic element proposed by the present utility model. It can be adapted to the gap between the transmission magnet and the transmission housing, can significantly improve the stability of the magnet during the operation of the transmission, effectively suppress the shaking phenomenon generated during the operation of the transmission, and ensure the overall performance and stability of the transmission.

[0059] Figure 3a The first schematic diagram of the elastic element structure according to an embodiment of the present utility model is disclosed. Figure 3b The second schematic diagram of the elastic element structure according to an embodiment of the present utility model is disclosed. As Figure 3a and Figure 3b shown, an elastic element 100 proposed by the present utility model:

[0060] The elastic element 100 is provided with a groove structure 110 at the bottom.

[0061] The groove structure 110 is used to insert the transmission magnet and is adapted to the size of the transmission magnet.

[0062] The elastic element 100 is closely connected to the transmission magnet and is fastened in the transmission housing as a whole.

[0063] In this embodiment, without changing the overall structure of the transmission housing, an elastic element 100 is added to increase the stability of the magnet.

[0064] The elastic element 100 is designed for the fixation of the magnet and ensures that this fixation method can be used inside the transmission. The elastic element 100 is characterized by being able to deform under an external force and return to its original state after the external force is removed. It is cleverly applied to the fixation of the magnet, effectively alleviating the influence of vibrations and impacts generated during vehicle driving on the position stability of the magnet. Also, through its good elastic recovery ability, it ensures that the magnet can maintain accurate positioning for a long time, thereby guaranteeing the smooth operation of various functions inside the transmission.

[0065] In this embodiment, the number of selected elastic elements 100 is 1, and it is installed on the top of the magnet. In some other embodiments, the number of elastic elements 100 can be adjusted according to specific requirements, and its installation position is not limited to the top of the magnet. It can also be installed at other suitable positions of the magnet.

[0066] In this embodiment, the elastic element 100 has an integrated structure. The integrated structure design not only simplifies the manufacturing process, improves production efficiency, but also enhances the overall strength and stability of the element.

[0067] As Figure 3a shown, the elastic element 100 and the transmission magnet 200 are connected through a specifically designed groove structure 110.

[0068] The four side edges of the groove structure 110 at the bottom of the elastic element 100 are designed with a stepped structure, and contact different parts of the transmission magnet through the stepped area to enhance the fixation effect and stability.

[0069] As Figure 3b shown, a ramp surface is provided at the corner of the top of the elastic element 100, which brings great convenience to the installation process.

[0070] Furthermore, the number of the ramp surfaces is two, and they are arranged at two opposite corners at the top.

[0071] In this embodiment, two through-hole structures 120 are provided at the top of the elastic element 100:

[0072] The through-hole structure 120 is arranged on the ramp surface and connects the top surface of the elastic element 100 with the groove structure 110.

[0073] Through the through-hole structure 120, the transmission magnet 200 can quickly expel the air between it and the elastic element 100 during installation, thereby ensuring that the magnet can closely fit inside the groove structure 110 to achieve accurate installation. This design not only improves the installation efficiency but also guarantees the accuracy and stability of the installation.

[0074] It should be noted that the number of the through-hole structures 120 is not fixed and can be adjusted according to specific requirements. At the same time, its installation position is not limited to the inclined plane, and other suitable positions can also be selected for setting.

[0075] In a specific embodiment of the present invention, following the unified coordinate system setting, for the whole vehicle, the X direction represents the forward direction of the whole vehicle, the Y direction represents the width direction of the whole vehicle, and the Z direction represents the height direction of the whole vehicle. Correspondingly, for the magnet, the X direction corresponds to its width direction, the Y direction corresponds to its length direction, and the Z direction corresponds to its height direction.

[0076] Figure 4a Disclosed is a schematic Y-direction assembly diagram of a magnet groove according to an embodiment of the present invention. Figure 4b Disclosed is a schematic Y-direction assembly diagram of an elastic element according to an embodiment of the present invention, as Figure 4a and Figure 4b , the elastic element 100 is closely connected to the transmission magnet 200 and is fastened as a whole in the magnet groove 300 of the transmission housing.

[0077] Wherein, the dimensional matching manner between the groove structure 110 of the elastic element 100 and the transmission magnet 200 is interference fit.

[0078] The interference fit between the groove structure 110 and the transmission magnet 200 means that a certain pre-tightening force will be generated during their assembly. This pre-tightening force can effectively prevent the magnet from loosening or falling off due to vibration during use. At the same time, it also provides strong support for the precise positioning of the magnet.

[0079] In actual use, the compression rate of the elastic element 100 in the magnet length direction (Y direction) is set within the range of 5.3% to 27.8%.

[0080] To ensure the performance and durability of the device, the material selection of the elastic element 100 preferably uses rubber material.

[0081] Specifically, for the rubber material used in the elastic element, its oil resistance performance must meet the pre-set standard to ensure reliability in a specific working environment. At the same time, the compression performance of this rubber also needs to meet the various requirements in actual use to ensure that the element can operate normally and not lose stability when subjected to pressure.

[0082] In addition, it should be noted that during the actual operation and application process, for the elastic element 100, the compression rate in the magnet length direction (i.e., the Y direction) is controlled within a reasonable range, that is, between 5.3% and 27.8%, to further optimize the performance of the element and ensure the overall stability and durability of the device.

[0083] Figure 5a Reveals a partial schematic diagram of the transmission in the Y direction according to an embodiment of the present utility model, Figure 5b Reveals a partial schematic diagram of the transmission in the X direction according to an embodiment of the present utility model, Figure 5c Reveals a partial schematic diagram of the transmission in the Z direction according to an embodiment of the present utility model, as Figures 5a to 5c shown, presenting the partial details of the transmission after the elastic element is fixed.

[0084] A magnet groove 300 is provided in the transmission housing for accommodating and placing the transmission magnet 200.

[0085] The magnet groove 300 is a groove structure located at the bottom of the transmission housing. The design of the groove position fully considers the placement stability and the convenience of taking and placing the magnet.

[0086] Specifically, the magnet groove 300 is in a "U" shape, with the width between the top and the bottom being equal, or the width between the top and the bottom being similar, the top being spacious and the bottom gradually narrowing, so as to facilitate the accurate sliding and fixing of the magnet.

[0087] Under the supporting action of the elastic element 100, the transmission magnet 200 can be stably placed in the magnet groove 300 of the transmission housing, ensuring its stable placement state.

[0088] Due to the deformation and compression characteristics of the elastic element 100 in the X, Y, and Z directions, the transmission magnet 200 can be effectively fastened, and can remain stable even when the transmission is subjected to vibration or jolting, effectively preventing the magnet damage problem that may be caused by shaking, thereby ensuring the overall operation safety and performance stability of the transmission.

[0089] Furthermore, the present utility model also proposes a transmission housing, including a magnet groove, a magnet, and at least one elastic element:

[0090] The magnet groove is provided in the transmission housing for placing the transmission magnet;

[0091] The elastic element is arranged in the gap between the transmission magnet and the magnet groove to fasten the transmission magnet in the magnet groove.

[0092] Furthermore, the present utility model also proposes a transmission magnet fixing device, including at least one elastic element:

[0093] The elastic element is provided with a groove structure at the bottom;

[0094] The groove structure is used for inserting the transmission magnet and is adapted to the size of the transmission magnet;

[0095] The elastic element is closely connected with the transmission magnet and is fastened in the transmission housing as a whole.

[0096] The specific details of the transmission housing and its connection with the transmission magnet fixing device have been explained in detail in the previous comprehensive introduction to the transmission, so they will not be repeated here.

[0097] The transmission, transmission housing and transmission magnet fixing device proposed in the utility model show significant advantages in improving the overall performance of the transmission, extending the service life, etc. The transmission can maintain a good operating state, and the loosening and falling off of the magnets are effectively curbed.

[0098] The transmission, transmission housing and transmission magnet fixing device proposed in the utility model successfully achieve the goal of enhancing the stability of the transmission without changing the overall structure of the transmission housing by introducing elastic elements and specially designed groove structures.

[0099] The utility model provides a transmission, a transmission housing and a transmission magnet fixing device, which specifically have the following beneficial effects:

[0100] 1) The stability of the magnet in the magnet slot is significantly improved, effectively resisting the shaking caused by the bumps during vehicle driving, thereby reducing the risk of magnet damage;

[0101] 2) The design of the device is simple and compact, providing convenient conditions for mass production;

[0102] 3) By improving the stability and durability of the magnet, the overall service life of the transmission is effectively increased.

[0103] As shown in this application and claims, unless the context clearly indicates an exception, the words "a", "an", "an" and / or "the" do not refer to the singular and may also include the plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of the steps and elements that have been clearly identified, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements.

[0104] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0105] In the present utility model, unless otherwise clearly specified or defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0106] In the description of the present utility model, it should be noted that, unless otherwise clearly specified or defined, the terms "mounted", "connected" and "coupled" shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a direct connection, or an indirect connection through an intermediate medium, and may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model may be understood according to specific situations.

[0107] The above embodiments are provided for those skilled in the art to implement or use the present utility model. Those skilled in the art can make various modifications or changes to the above embodiments without departing from the inventive concept of the present utility model. Therefore, the protection scope of the present utility model is not limited by the above embodiments, but should be the maximum scope that conforms to the innovative features mentioned in the claims.

Claims

1. A transmission, characterized in that, Comprising a transmission housing, a transmission magnet, and at least one elastic element: A magnet groove is provided in the transmission housing for placing the transmission magnet; The elastic element is arranged in the gap between the transmission magnet and the magnet groove to fasten the transmission magnet in the magnet groove.

2. The transmission according to claim 1, characterized in that, The bottom of the elastic element is provided with a groove structure; The groove structure is used for inserting the transmission magnet and is adapted to the size of the transmission magnet; The elastic element is closely connected to the transmission magnet and is fastened in the transmission housing as a whole.

3. The transmission according to claim 1 or claim 2, characterized in that, The elastic element is of an integral structure.

4. The transmission according to claim 2, wherein The fitting manner of the groove structure of the elastic element and the size of the transmission magnet is an interference fit.

5. The transmission according to claim 2, wherein, A plurality of through-hole structures are provided at the top of the elastic element: The through-hole structure connects the top surface of the elastic element and the groove structure.

6. The transmission according to claim 2, characterized in that, The side of the groove structure at the bottom of the elastic element is a stepped structure.

7. The transmission according to claim 1, characterized in that, A ramp surface is provided at the corner of the top of the elastic element: The number of the ramp surfaces is two and they are arranged at two opposite corners at the top.

8. The transmission according to claim 2, wherein The compression rate of the elastic element in the length direction of the magnet is set within the range of 5.3% to 27.8%.

9. A transmission housing, characterized in that, Comprising a magnet groove, a magnet, and at least one elastic element: The magnet groove is provided in the transmission housing for placing the transmission magnet; The elastic element is arranged in the gap between the transmission magnet and the magnet groove to fasten the transmission magnet in the magnet groove.

10. A transmission magnet fixing device, characterized in that, Comprising at least one elastic element: The bottom of the elastic element is provided with a groove structure; The groove structure is used for inserting the transmission magnet and is adapted to the size of the transmission magnet; The elastic element is closely connected to the transmission magnet and is fastened in the transmission housing as a whole.

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