Tripod universal joint assembly and automobile

Abstract

The utility model provides a tripod universal joint assembly and an automobile. The tripod universal joint assembly comprises a tripod universal joint, a three-column groove shell and an anti-disengaging device. The three-column groove shell comprises a mounting cavity with an opening in one end, and the tripod universal joint is arranged in the mounting cavity. The anti-disengaging device comprises an ejector block, and the ejector block is configured to enable the side wall of the installation cavity to protrude towards the installation cavity so as to prevent the tripod universal joint from disengaging from the interior of the installation cavity. The tripod universal joint is installed in the installation cavity of the three-column groove shell, the opening of the installation cavity can contract inwards due to the arrangement of the ejection block in the anti-disengaging device, and therefore the tripod universal joint can be prevented from disengaging from the installation cavity of the three-column groove shell. By means of the arrangement, when the tripod universal joint is pulled by external force, the tripod universal joint cannot be disengaged from the mounting cavity of the three-column groove shell, then the situation that a driving shaft connected with the tripod universal joint is pulled off when the driving shaft is assembled with a motor and a wheel hub is avoided, and the assembling quality and efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the field of automobiles, in particular to a tripod universal joint assembly and an automobile. Background Art

[0002] The current drive shaft used in electric vehicles adopts a front-end front-wheel drive layout, with the drive shaft mounted on a tripod universal joint, which is then installed in a three-column housing. Figure 1 As shown, the tripod universal joint is installed in the three-column groove shell without an anti-detachment structure design. Since there is no reasonable restriction at the contact point between the tripod universal joint and the cylindrical shell, the drive shaft is often pulled out when assembled with the motor and wheel hub, and it is difficult to restore after being pulled out, affecting the assembly quality and efficiency. Summary of the Invention

[0003] In view of the above problems, the present utility model is proposed to provide a tripod universal joint assembly and a vehicle that overcome the above problems or at least partially solve the above problems, can solve the problem that the tripod universal joint is easily detached from the three-column groove housing, and improve the assembly quality and efficiency of the vehicle.

[0004] Specifically, the utility model provides a tripod universal joint assembly, comprising:

[0005] Three-ball universal joint;

[0006] A three-column trough housing, the three-column trough housing including a mounting cavity with an open end, the tripod universal joint being arranged in the mounting cavity;

[0007] The anti-slip device includes a top block, and the top block is configured to make the side wall at the opening of the installation cavity protrude toward the installation cavity.

[0008] Optionally, the tripod universal joint comprises three ball rings;

[0009] The mounting cavity includes three ball channels evenly distributed along the peripheral wall of the three-column tank housing, and the three ball rings are respectively arranged in the corresponding ball channels; the side wall of each ball channel includes a first section and a second section that contact the outer wall of the corresponding ball ring;

[0010] The anti-slip device includes:

[0011] A plurality of rivet holes, each of which is provided on an end wall of one end of the three-column trough shell and is adjacent to the first section or the second section;

[0012] a plurality of rivets, wherein the plurality of rivets are inserted into corresponding rivet holes;

[0013] The rivet comprises:

[0014] a housing, one end of which is inserted into the rivet hole;

[0015] a first mounting hole, the first mounting hole being opened on the housing along a radial direction of the housing, with an outer opening of the first mounting hole facing the first section or the second section;

[0016] A top block is movably disposed in the first mounting hole, and when the shell is deformed, one end of the top block can extend outward from the first mounting hole.

[0017] Optionally, the other end of the top block is provided with a first inclined surface;

[0018] The rivet further comprises:

[0019] a second mounting hole, the second mounting hole being opened on the housing along an axial direction of the housing, the first mounting hole being in communication with the second mounting hole;

[0020] A moving rod, one end of which is inserted into the second mounting hole, and the other end of which is located outside the second mounting hole and away from the top block; a second inclined surface is provided at one end of the moving rod; the second inclined surface abuts against the first inclined surface so that when the moving rod moves toward the top block, the other end of the top block extends outward from the first mounting hole.

[0021] Optionally, the surface of the other end of the top block is an outwardly convex curved surface or a conical surface.

[0022] Optionally, a first groove is formed on the side wall of the rivet hole, and the first groove is configured to accommodate the other end of the protruding top block.

[0023] Optionally, the housing, the movement rod, the top block and the three-column tank housing are made of materials with different hardnesses;

[0024] The material hardness of the top block, the material hardness of the movement rod, the material hardness of the three-column tank shell, and the material hardness of the shell decrease in sequence.

[0025] Optionally, the second mounting hole includes a first hole segment and a second hole segment connected to each other; the first mounting hole is connected to the second hole segment; the aperture of the first hole segment is smaller than the aperture of the second hole segment;

[0026] The motion rod includes a first rod segment and a second rod segment connected to each other, the first inclined surface is arranged at one end of the second rod segment; the diameter of the second rod segment is larger than the diameter of the first rod segment and larger than the aperture of the first hole segment.

[0027] Optionally, a second groove is provided on the side wall of the first hole segment along the axial direction, and both ends of the second groove are connected;

[0028] A convex strip is provided on the side wall of the first rod segment, and the convex strip is inserted into the second groove;

[0029] The plurality of rivet holes include six rivet hole groups, and each rivet hole group includes two rivet holes arranged at intervals;

[0030] The six rivet hole groups are respectively arranged adjacent to the three first sections and the three second sections.

[0031] The utility model also provides an automobile, comprising the tripod universal joint assembly as described in any one of the above items.

[0032] Optionally, the automobile further comprises a valve body, which comprises a valve shell and a valve core rotatably mounted in the valve shell, the valve shell being provided with a plurality of valve ports, which are arranged axially; the valve core is a double-layer structure having an inner layer flow channel and an outer layer flow channel, the outer layer of the valve core being provided with a plurality of flow grids which separate the outer layer flow channel, the plurality of flow grids being divided into a plurality of groups in the circumferential direction of the valve core, and each group of the flow grids being respectively connected to the corresponding valve ports; at least some of the adjacent flow grids are connected through the outer layer flow channel, and at least some of the non-adjacent flow grids are connected through the inner layer flow channel.

[0033] The utility model relates to a tripod universal joint assembly and a car, wherein the tripod universal joint assembly comprises a tripod universal joint, a three-column trough shell and an anti-slip device. The three-column trough shell comprises a mounting cavity with an opening at one end, and the tripod universal joint is arranged in the mounting cavity. The anti-slip device comprises a top block, and the top block is configured so that the side wall of the mounting cavity protrudes in the direction of the mounting cavity to prevent the tripod universal joint from escaping from the mounting cavity. The tripod universal joint is mounted in the mounting cavity of the three-column trough shell. The arrangement of the top block in the anti-slip device can cause the opening of the mounting cavity to contract inward, that is, the metal at the opening of the mounting cavity of the three-column trough shell is squeezed into the interior of the mounting cavity, thereby preventing the tripod universal joint from escaping from the mounting cavity of the three-column trough shell. The above arrangement prevents the tripod universal joint from escaping from the mounting cavity of the three-column trough shell when it is pulled by an external force, thereby preventing the drive shaft connected to the tripod universal joint from being pulled off when assembled with the motor and the wheel hub, thereby improving the assembly quality and efficiency.

[0034] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0036] Figure 1 It is a structural diagram of a tripod universal joint installed in a three-column housing in the prior art;

[0037] Figure 2 This is a schematic structural diagram of a three-column tank shell according to an embodiment of the present utility model;

[0038] Figure 3 This is a schematic structural diagram of a rivet according to an embodiment of the present utility model;

[0039] Figure 4 yes Figure 3 Side view of;

[0040] Figure 5 This is a structural schematic diagram of a valve body according to an embodiment of the present utility model;

[0041] Figure 6 Schematic diagram of the structure of a valve core according to an embodiment of the present invention. DETAILED DESCRIPTION

[0042] Refer to the following Figures 1 to 6 To describe the tripod universal joint assembly and automobile of the embodiment of the present invention. In the description of this embodiment, it should be understood that the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or some of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and may further include other features.

[0043] Unless otherwise expressly specified or limited, terms such as "disposed," "installed," "connected," "connected," "fixed," and "coupled" should be interpreted broadly. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two elements or interaction between two elements, unless otherwise expressly limited. A person of ordinary skill in the art should be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0044] In addition, in the description of this embodiment, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact via another feature between them. That is, in the description of this embodiment, the first feature being "above," "above," and "above" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below," "below," or "below" the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0045] In the description of the present embodiment, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" 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 appropriate manner in any one or more embodiments or examples.

[0046] Figure 2 Schematic diagram of the structure of a three-column tank shell 200 according to an embodiment of the present invention. Figure 2 As shown, and reference Figures 2 to 4 The present invention provides a tripod universal joint assembly comprising a tripod universal joint, a three-column housing 200, and an anti-slip device. The three-column housing 200 includes a mounting cavity with an open end, within which the tripod universal joint is disposed. The anti-slip device includes a top block 420 configured to cause the sidewalls of the mounting cavity to protrude toward the mounting cavity, thereby preventing the tripod universal joint from slipping out of the cavity.

[0047] The tripod universal joint is installed in the mounting cavity of the three-column trough housing 200. The provision of the top block 420 in the anti-detachment device causes the opening of the mounting cavity to retract inward. In other words, the metal at the opening of the mounting cavity of the three-column trough housing 200 is pressed into the mounting cavity, thereby preventing the tripod universal joint from escaping from the mounting cavity of the three-column trough housing 200. This arrangement prevents the tripod universal joint from escaping from the mounting cavity of the three-column trough housing 200 when pulled by an external force, thereby preventing the drive shaft connected to the tripod universal joint from being pulled off during assembly with the motor and wheel hub, thereby improving assembly quality and efficiency.

[0048] In some embodiments of the present invention, Figure 2As shown, the tripod universal joint includes three ball rings 110. The mounting cavity includes three ball channels evenly distributed along the circumferential wall of the three-column housing 200, with the three ball rings 110 positioned within corresponding ball channels. The sidewall of each ball channel includes a first section 210 and a second section 220 that contact the outer wall of the corresponding ball ring 110. The anti-slip device includes multiple rivet holes 300 and multiple rivets 400. The multiple rivet holes 300 are each provided on the end wall of one end of the three-column housing 200, adjacent to the first section 210 or the second section 220. The multiple rivets 400 are inserted into the corresponding rivet holes 300. The rivet 400 includes a housing 410, a first mounting hole 413, and a top block 420. One end of the housing 410 is inserted into the rivet hole 300. The first mounting hole 413 is radially provided in the housing 410, with the outer opening of the first mounting hole 413 facing the first section 210 or the second section 220. The top block 420 is movably disposed in the first mounting hole 413 . When the housing 410 is deformed, one end of the top block 420 may extend outward from the first mounting hole 413 .

[0049] The ball ring 110 is positioned within the ball channel. The first and second sections 210 and 220 are where the ball ring 110 contacts or approaches the ball channel. When the housing 410 deforms, one end of the top block 420 can extend outward from the first mounting hole 413. Since the outer opening of the first mounting hole 413 faces the first or second section 210, the top block 420 pushes against the first or second section 210, causing the portion of the first or second section 220 corresponding to the top block 420 to protrude inward. Simultaneously, the housing 410 is compressed and deformed, similarly causing the portion of the first or second section 210, 220 corresponding to the rivet hole 300 to protrude inward, further shrinking the mounting cavity opening inward and preventing the tripod universal joint from dislodging from the mounting cavity of the tripod housing 200. Preferably, the rivet hole is located in the middle of the first or second section.

[0050] Furthermore, in some embodiments of the present invention, Figure 3 As shown, the other end of the top block 420 is provided with a first inclined surface 421. The rivet also includes a second mounting hole 412 and a moving rod 430 opened in the axial direction of the shell 410. The first mounting hole 413 is connected to the second mounting hole 412. One end of the moving rod 430 is inserted into the second mounting hole 412, and the other end of the moving rod 430 is located outside the second mounting hole 412 and away from the top block 420. One end of the moving rod 430 is provided with a second inclined surface 431. The second inclined surface 431 contacts the first inclined surface 421, so that when the moving rod 430 moves toward the top block 420, the other end of the top block 420 extends outward from the first mounting hole 413.

[0051] When the rivet 400 is riveted into the rivet hole 300, a force needs to be applied to the housing 410 in the axial direction, such as by striking the housing 410 with a hammer, so that the housing 410 deforms within the rivet hole 300, thereby achieving the riveting effect. During the process of the hammer striking the housing 410, since the other end of the motion rod 430 is outside the second mounting hole 412, the hammer will first contact the other end of the motion rod 430, causing the motion rod 430 to move toward the top block 420, and the first inclined surface 421 and the second inclined surface 431 to move relative to each other, pushing one end of the top block 420 to move outside the first mounting hole 413, thereby squeezing the first section 210 or the second section 220, causing the first section 210 or the second section 220 to bulge inward at the position corresponding to the top block 420.

[0052] Furthermore, in some embodiments of the present invention, Figure 3 As shown, the surface of the other end of the top block 420 is an outwardly convex arc surface. The setting of the arc surface is conducive to the inward convexity of the position corresponding to the first section 210 or the second section 220 and the top block 420.

[0053] In other embodiments of the present invention, the surface of the other end of the top block 420 is a conical surface protruding outward.

[0054] In some embodiments of the present invention, a first groove is defined on the side wall of the rivet hole 300 , and the first groove is configured to accommodate the other end of the protruding top block 420 .

[0055] When the other end of the top block 420 extends outward from the first mounting hole 413, it directly pushes against the first groove. This arrangement is beneficial to the deformation of the first section 210 or the second section 220, and also allows at least a portion of the other end of the top block 420 to be embedded in the first groove, preventing the rivet 400 from detaching from the rivet hole 300 due to vibration or other reasons during operation, thereby fixing the rivet 400.

[0056] In some embodiments of the present invention, the housing 410 , the movement rod 430 , the top block 420 , and the three-column tank housing 200 are made of materials with different hardnesses.

[0057] Furthermore, in some embodiments of the present invention, the material hardness of the top block 420, the material hardness of the movement rod 430, the material hardness of the three-column trough shell 200, and the material hardness of the shell 410 decreases in sequence. The material hardness of the shell 410 is the smallest, which facilitates deformation of the shell 410 under stress. In some embodiments, the shell 410 can be made of aluminum or stainless steel. The sequential decrease in the material hardness of the top block 420, the material hardness of the movement rod 430, and the material hardness of the three-column trough shell 200 facilitates the top block 420 being pushed by the movement rod toward the first section 210 or the second section 220, causing deformation of the first section 210 or the second section 220.

[0058] In some embodiments of the present invention, Figure 3 As shown, the second mounting hole 412 includes a first hole segment and a second hole segment connected to each other. The first mounting hole 413 is connected to the second hole segment. The aperture of the first hole segment is smaller than the aperture of the second hole segment. The movement rod 430 includes a first rod segment 432 and a second rod segment 433 connected to each other, and the first inclined surface 421 is provided at one end of the second rod segment 433. The diameter of the second rod segment 433 is larger than the diameter of the first rod segment 432 and larger than the aperture of the first hole segment. The second rod segment 433 cooperates with the first hole segment to prevent the movement rod 430 from sliding out of the end of the second mounting hole 412 away from the top block 420.

[0059] Furthermore, in some embodiments of the present invention, Figure 4 As shown, the sidewall of the first hole segment is provided with a second groove extending along the axis, with both ends of the second groove extending through the first rod segment 432. A protrusion 440 is provided on the sidewall of the first rod segment 432, which inserts into the second groove. This arrangement facilitates positioning of the movement rod 430, allowing the first inclined surface 421 and the second inclined surface 431 to be positioned relative to each other.

[0060] An embodiment of the present utility model further provides an automobile, comprising a tripod universal joint assembly as described in any of the above embodiments.

[0061] In some embodiments of the present invention, Figure 5 and Figure 6As shown, the vehicle also includes a valve body 4, which includes a valve housing 41 and a valve core 44 rotatably mounted within the valve housing 41. The valve housing 41 is provided with a plurality of valve ports 411, which are arranged axially. It is noteworthy that the valve core 44 has a double-layer structure comprising an inner flow channel 441 and an outer flow channel 442. The outer layer of the valve core 44 is provided with a plurality of flow grids 443 that separate the outer flow channel 442. The plurality of flow grids 443 are divided into several groups circumferentially around the valve core 44, with each group of flow grids 443 communicating with a corresponding valve port 411. At least some adjacent flow grids 443 communicate through the outer flow channel 442, and at least some non-adjacent flow grids 443 communicate through the inner flow channel 441. That is, when communication between adjacent valve ports 411 is required, the sidewalls between the corresponding flow grids 443 are eliminated, allowing them to communicate through the outer flow channel 442. When non-adjacent valve ports 411 need to communicate, the bottom wall of the corresponding flow channel grid 443 is removed, allowing liquid to flow through the bottom wall into the inner flow channel 441 for intercommunication, effectively preventing accidental water mixing. Each set of flow channel grids 443 corresponds to a different operating mode. To change the operating mode, the valve core 44 is rotated to align another set of flow channel grids 443 with the valve ports 411, thereby changing the vehicle thermal management system to the next operating state.

[0062] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications consistent with the principles of the present invention can be directly determined or deduced from the contents disclosed herein without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims

1. A tripod universal joint assembly, characterized in that: include: Three-ball universal joint; A three-column trough housing, the three-column trough housing including a mounting cavity with an open end, the tripod universal joint being arranged in the mounting cavity; The anti-slip device includes a top block, and the top block is configured to make the side wall at the opening of the installation cavity protrude toward the installation cavity.

2. The tripod universal joint assembly according to claim 1, wherein: The tripod universal joint includes three ball rings; The mounting cavity includes three ball channels evenly distributed along the peripheral wall of the three-column tank housing, and the three ball rings are respectively arranged in the corresponding ball channels; the side wall of each ball channel includes a first section and a second section that contact the outer wall of the corresponding ball ring; The anti-slip device includes: A plurality of rivet holes, each of which is provided on an end wall of one end of the three-column trough shell and is adjacent to the first section or the second section; a plurality of rivets, wherein the plurality of rivets are inserted into corresponding rivet holes; The rivet comprises: a housing, one end of which is inserted into the rivet hole; a first mounting hole, the first mounting hole being opened on the housing along a radial direction of the housing, with an outer opening of the first mounting hole facing the first section or the second section; A top block is movably disposed in the first mounting hole, and when the shell is deformed, one end of the top block can extend outward from the first mounting hole.

3. The tripod universal joint assembly according to claim 2, wherein: The other end of the top block is provided with a first inclined surface; The rivet further comprises: a second mounting hole, the second mounting hole being opened on the housing along an axial direction of the housing, the first mounting hole being in communication with the second mounting hole; A moving rod, one end of which is inserted into the second mounting hole, and the other end of which is located outside the second mounting hole and away from the top block; a second inclined surface is provided at one end of the moving rod; the second inclined surface abuts against the first inclined surface so that when the moving rod moves toward the top block, the other end of the top block extends outward from the first mounting hole.

4. The tripod universal joint assembly according to claim 3, wherein: The surface of the other end of the top block is an outwardly convex curved surface or a conical surface.

5. The tripod universal joint assembly according to claim 3, wherein: A first groove is formed on the side wall of the rivet hole, and the first groove is configured to accommodate the other end of the protruding top block.

6. The tripod universal joint assembly according to claim 3, wherein: The hardness of the materials of the housing, the movement rod, the top block and the three-column tank shell are different; The material hardness of the top block, the material hardness of the movement rod, the material hardness of the three-column tank shell, and the material hardness of the shell decrease in sequence.

7. The tripod universal joint assembly according to claim 3, wherein: The second mounting hole includes a first hole segment and a second hole segment connected to each other; the first mounting hole is connected to the second hole segment; the hole diameter of the first hole segment is smaller than the hole diameter of the second hole segment; The motion rod includes a first rod segment and a second rod segment connected to each other, the first inclined surface is arranged at one end of the second rod segment; the diameter of the second rod segment is larger than the diameter of the first rod segment and larger than the aperture of the first hole segment.

8. The tripod universal joint assembly according to claim 7, wherein: A second groove is provided on the side wall of the first hole segment along the axial direction, and both ends of the second groove are connected; A convex strip is provided on the side wall of the first rod segment, and the convex strip is inserted into the second groove; The plurality of rivet holes include six rivet hole groups, and each rivet hole group includes two rivet holes arranged at intervals; The six rivet hole groups are respectively arranged adjacent to the three first sections and the three second sections.

9. An automobile, characterized in that: Comprising the tripod universal joint assembly according to any one of claims 1 to 8.

10. The automobile according to claim 9, characterized in that It also includes a valve body, which includes a valve shell and a valve core rotatably installed in the valve shell, and a plurality of valve ports are opened on the valve shell, and the valve ports are arranged along the axial direction; the valve core is a double-layer structure with an inner flow channel and an outer flow channel, and the outer layer of the valve core is provided with a plurality of flow grids that separate the outer flow channel, and the plurality of flow grids are divided into a plurality of groups in the circumferential direction of the valve core, and each group of the flow grids is respectively connected with the corresponding valve ports; at least some of the adjacent flow grids are connected through the outer flow channel, and at least some of the non-adjacent flow grids are connected through the inner flow channel.

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