Front subframe and vehicle

Abstract

This application relates to the field of vehicle chassis technology, and provides a front subframe and a vehicle. The front subframe has a front insertion hole at its front end, allowing a front support to be inserted vertically and providing space for vertical movement. The front support has an insertion hole for a mounting sleeve to be inserted vertically, also providing space for vertical movement. The front subframe has a rear insertion hole at its rear end, also allowing a mounting sleeve to be inserted vertically and providing space for vertical movement. The front subframe is connected to the vehicle body via the mounting sleeve. The same front subframe can be used, and the mounting sleeve's Z-axis position can be adjusted within the insertion hole and rear insertion hole. The front support's Z-axis position can be adjusted within the front insertion hole, allowing the subframe to be used for different vehicle models, reducing costs. Furthermore, bolts of the same length can be used, avoiding incorrect installation and improving efficiency.

Description

Technical Field

[0001] This application relates to the field of vehicle chassis technology, and more particularly to a front subframe and vehicle. Background Technology

[0002] In a vehicle chassis system, the subframe, serving as a support for the front and rear axles and suspension, is a crucial component. The front subframe, mounted on the vehicle body, provides mounting points for components such as the steering gear, stabilizer bar, control arms, and engine mounts.

[0003] Currently, the same platform covers both sedans and SUVs. The two types of vehicles have different overall postures, which are usually achieved by adjusting the Z-axis dimension of the front subframe mounting point. This requires matching the subframe structure, so different types of subframes need to be developed for this platform. This leads to repeated investment in molds and production lines, resulting in higher costs. In addition, different bolt lengths are required during installation, which also leads to the problem of incorrect installation. Utility Model Content

[0004] To solve the above-mentioned technical problems, or at least partially solve them, this application provides a front subframe and vehicle that provides movement space for the front support through a front insertion hole. The front support is provided with a mounting sleeve, and the mounting sleeve is provided with movement space through a rear insertion hole. In this way, the height of each mounting sleeve in the Z-direction can be adjusted to adapt to different vehicle models, and the same bolts can be used to avoid the problem of incorrect installation.

[0005] The first aspect of this application provides a front subframe, wherein the front subframe is provided with a front insertion hole at its front end, the front insertion hole for inserting a front support in the vertical direction and providing space for the front support to move up and down, and the front support is provided with an insertion hole for inserting a mounting sleeve in the vertical direction, the insertion hole providing space for the mounting sleeve to move up and down. The front subframe is provided with a rear insertion hole at its rear end, which allows the installation sleeve to be inserted vertically and provides space for the installation sleeve to move up and down. The front subframe is connected to the vehicle body via the mounting sleeve.

[0006] The front subframe provided in this application embodiment has a front insertion hole at the front end for inserting a front support, which provides space for the front support to move up and down. The front support has an insertion hole for inserting a mounting sleeve, and the rear end has a rear insertion hole for inserting a mounting sleeve, which also provides space for the mounting sleeve to move up and down. In this way, the same front subframe can be used during assembly. The mounting sleeve can be adjusted in the Z-direction within the insertion hole and the rear insertion hole, and the front support can be adjusted in the Z-direction within the front insertion hole. This makes the subframe suitable for different vehicle models, reducing costs. Furthermore, the front subframe is connected to the vehicle body through multiple identical mounting sleeves, so different vehicle models can use bolts of the same length, thus avoiding incorrect assembly and improving efficiency.

[0007] In some embodiments, the front subframe includes a front crossbeam, a rear crossbeam, and a longitudinal beam connecting the front crossbeam and the rear crossbeam. The front crossbeam has the front mounting hole, and the longitudinal beam has the rear mounting hole.

[0008] The aforementioned front insertion hole is located on the front crossbeam, so that the front mounting sleeve is installed on the front crossbeam through the front support. The rear insertion hole is located on the longitudinal beam, so that the rear mounting sleeve is installed on the longitudinal beam. This allows both the front crossbeam and the longitudinal beam to be directly connected to the vehicle body, dispersing the force and avoiding stress concentration.

[0009] In some embodiments, the front crossbeam is a tubular beam, and the front insertion hole penetrates the front crossbeam; And / or, the longitudinal beam is a tubular beam, and the rear insertion hole penetrates the longitudinal beam.

[0010] The front crossbeam is made of tubular material, which reduces the weight of the subframe while ensuring a certain structural strength. The front mounting hole runs through the front crossbeam, allowing the front support to also run through it. This creates two annular welds between the front support and the front crossbeam when they are welded together, increasing the connection strength between them.

[0011] The longitudinal beams are made of tubular beams, which reduces the weight of the subframe while ensuring a certain structural strength. The rear mounting holes penetrate the front crossbeams, allowing the mounting sleeves to also penetrate the longitudinal beams. This creates two annular welds between the mounting sleeves and the longitudinal beams when they are welded together, improving the connection strength between them.

[0012] In some embodiments, the front subframe is further provided with a positioning hole at its rear end. The positioning hole allows the positioning sleeve to be inserted vertically and provides space for the positioning sleeve to move up and down. The positioning sleeve is configured to position the front subframe and the vehicle body.

[0013] The positioning sleeve is inserted into the positioning hole and connected to the subframe. During assembly, the Z-axis position of the positioning sleeve relative to the subframe can be adjusted, so that the structure of the front subframe does not need to be adjusted, making the front subframe suitable for different vehicle models.

[0014] In some embodiments, the front subframe includes at least one connector, and the positioning socket extends through all of the connectors.

[0015] By providing positioning holes through connectors, when multiple connectors are provided, not only can the contact area between the positioning sleeve and the front subframe in the axial direction be increased, thus improving the stability of the positioning sleeve, but also the number of welds can be increased when the connector and the positioning sleeve are welded together, thereby improving the connection strength between the connector and the positioning sleeve.

[0016] In some embodiments, two connectors are provided, at least one of the two connectors is used to connect a control arm, and the positioning socket extends through both connectors.

[0017] The positioning hole passes through two connectors, thus limiting the positioning sleeve through the two connectors and improving the stability of the positioning sleeve. When the installation sleeve and connectors are connected by welding, the installation sleeve and the two connectors respectively form welds, which improves the stability of the installation sleeve.

[0018] A second aspect of this application provides a vehicle including a front subframe as described in any of the preceding claims, the vehicle further including a front support and a mounting sleeve; The front support is inserted into the front mounting hole and connected to the front subframe. The mounting sleeve is inserted into the mounting hole, the front support is connected to the mounting sleeve, and the mounting sleeve is inserted into the rear mounting hole.

[0019] Because the front support is equipped with a front insertion hole for connection to the front subframe, the Z-axis position of the front support relative to the front subframe can be adjusted during assembly. The mounting sleeve is inserted into the insertion hole and connected to the front support, so the Z-axis position of the mounting sleeve can be adjusted relative to the front subframe during assembly. In other words, the Z-axis position of the mounting sleeve can be adjusted in two ways, so there is no need to adjust the structure of the front subframe, making the front subframe suitable for different vehicle models.

[0020] Furthermore, since mounting sleeves are installed at both the front and rear ends of the front subframe, bolts of the same length can be used to fix the mounting sleeves to the vehicle body, thus avoiding the problem of easy misinstallation.

[0021] In some embodiments, a hobbing tooth is provided on the end face of the end of the mounting sleeve that mates with the vehicle body in the axial direction; And / or, a drainage notch is provided at the axial end of the mounting sleeve away from the vehicle body.

[0022] The gear hobbing allows the mounting sleeve to embed into the vehicle body when it mates with the body, increasing the coefficient of friction between the mounting sleeve and the body. This makes it less likely for the mounting sleeve and the subframe to misalign, thereby improving the connection stability between the front subframe and the body.

[0023] The drainage notch allows water entering the installation sleeve to be discharged in a timely manner, preventing corrosion caused by prolonged immersion.

[0024] In some embodiments, a positioning sleeve is also included, wherein the front subframe is provided with at least one positioning hole at its rear end for the positioning sleeve to be inserted vertically, and the positioning sleeve is used to position the front subframe and the vehicle body.

[0025] The positioning sleeve is inserted into the positioning hole and connected to the front subframe. During assembly, the Z-axis position of the positioning sleeve relative to the front subframe can be adjusted, so that the structure of the front subframe does not need to be adjusted, making the front subframe suitable for different vehicle models.

[0026] In some embodiments, the end face of the positioning sleeve that mates with the vehicle body in the axial direction is provided with a hobbing tooth; And / or, the lower end of the positioning sleeve is provided with a drainage notch; And / or, the positioning sleeve is provided in multiple forms, and at least one of the positioning sleeves has a positioning hole that is a strip-shaped hole, and at least one of the positioning sleeves has a positioning hole that is a circular hole, and the circular hole and the strip-shaped hole have the same diameter.

[0027] The gear hobbing allows the positioning sleeve to embed into the body when it mates with the body, thereby increasing the coefficient of friction between the positioning sleeve and the body. This makes it less likely for the positioning sleeve and the body to misalign, thus improving the connection stability between the front subframe and the body.

[0028] The drainage notch allows water entering the positioning sleeve to be discharged in a timely manner, preventing corrosion caused by prolonged immersion.

[0029] By setting at least one of them as a circular hole and at least one as a strip hole, the positioning sleeve on the vehicle body can be matched with the positioning sleeve on the subframe to achieve the positioning of the subframe and the vehicle body. Attached Figure Description

[0030] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0031] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the front subframe provided in an embodiment of this application; Figure 2 for Figure 1 A partial structural diagram; Figure 3 A partial structural schematic diagram of the vehicle provided in an embodiment of this application; Figure 4 This is a schematic diagram of the structure of the mounting sleeve provided in the embodiments of this application; Figure 5 This is a schematic diagram of the positioning sleeve provided in an embodiment of this application; Figure 6 for Figure 5 Cross-sectional view of the positioning sleeve; Figure 7 This is a schematic diagram showing the connection between the front subframe and the vehicle body provided in an embodiment of this application.

[0033] Among them, 1. Front subframe; 11. Front crossbeam; 111. Front mounting hole; 12. Rear crossbeam; 13. Longitudinal beam; 131. Rear mounting hole; 14. Connector; 141. Positioning hole; 15. Mating part; 2. Front support; 3. Install the sleeve; 4. Positioning sleeve; 5. Vehicle body; 6. Bolts; 101. Gear hobbing; 102. Drainage notch; 103. Error prevention notch; 104. Stepped surface. Detailed Implementation

[0034] To better understand the above-mentioned objectives, features, and advantages of this application, the solution of this application will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0035] Many specific details are set forth in the following description in order to provide a full understanding of this application, but this application may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of this application, and not all embodiments.

[0036] In a vehicle chassis system, the subframe, serving as a support for the front and rear axles and suspension, is a crucial component. The front subframe, mounted on the vehicle body, provides mounting points for components such as the steering gear, stabilizer bar, control arms, and engine mounts.

[0037] Currently, the same platform covers both sedans and SUVs. The two types of vehicles have different overall postures, which are usually achieved by adjusting the Z-axis dimension of the mounting points of the front subframe. This requires matching with the longitudinal beam structure. As a result, the platform needs to develop different types of front subframes, that is, develop a front subframe for each vehicle model. This leads to a large investment in molds and production lines, resulting in high costs. Moreover, different front subframes use bolts of different lengths during installation, which also leads to the problem of incorrect installation.

[0038] Based on this, this application proposes a front subframe that allows the mounting sleeves on the front subframe to be adjusted in the Z-direction during installation. Thus, only the Z-direction position of the mounting sleeves needs to be adjusted during assembly, making the front subframe suitable for different vehicle models, reducing costs, and allowing the use of the same mounting sleeves and bolts of the same length, thereby avoiding the problem of incorrect installation.

[0039] like Figures 1 to 2 As shown, this application provides a front subframe 1.

[0040] In some embodiments, the aforementioned front subframe 1 is provided with a front insertion hole 111 at its front end. The front insertion hole 111 allows the front support 2 to be inserted vertically and provides space for the front support 2 to move up and down. The front support 2 is provided with an insertion hole for the installation sleeve 3 to be inserted vertically, and the insertion hole provides space for the installation sleeve 3 to move up and down. The front subframe 1 is connected to the vehicle body through the installation sleeve 3.

[0041] Understandably, the front support 2 is connected to the front subframe 1 by inserting a front mounting hole 111. During assembly, the Z-axis position of the front support 2 relative to the front subframe 1 can be adjusted within the front mounting hole 111. The mounting sleeve 3 is inserted into the insertion hole and connected to the front support 2. During assembly, the Z-axis position of the mounting sleeve 3 relative to the front subframe 1 within the insertion hole can be adjusted. In other words, the Z-axis position of the mounting sleeve 3 can be adjusted through two methods. Thus, there is no need to adjust the structure of the front subframe 1, making the front subframe 1 suitable for different vehicle models.

[0042] Among them, reference Figure 1 The aforementioned front subframe 1 is provided with two front insertion holes 111, each front insertion hole 111 is fitted with a front support 2, and each front support 2 is fitted with a mounting sleeve 3, so that the front end of the front subframe 1 is connected to the vehicle body through the two mounting sleeves 3.

[0043] In some embodiments, the front subframe 1 has a rear insertion hole 131 at its rear end, which allows the mounting sleeve 3 to be inserted vertically and provides space for the mounting sleeve 3 to move up and down. The front subframe 1 is connected to the vehicle body via the mounting sleeve 3.

[0044] Understandably, the mounting sleeve 3 is inserted into the rear insertion hole 131 and connected to the front subframe 1. In this way, the position of the mounting sleeve 3 in the rear insertion hole 131 can be adjusted relative to the front subframe 1 during assembly. This eliminates the need to adjust the structure of the front subframe 1, making the front subframe 1 suitable for different vehicle models.

[0045] Among them, reference Figure 1 The aforementioned front subframe 1 is provided with two rear insertion holes 131, and each rear insertion hole 131 is fitted with an installation sleeve 3, so that the rear end of the front subframe 1 is connected to the vehicle body through the two installation sleeves 3.

[0046] The front subframe 1 provided in this application embodiment has a front insertion hole 111 at its front end for the front support 2 to be inserted vertically, an insertion hole for the mounting sleeve 3 to be inserted vertically on the front support 2, and a rear insertion hole 131 at its rear end for the mounting sleeve 3 to be inserted vertically. In this way, the same front subframe 1 can be used during assembly, and the Z-direction position of the front and rear mounting sleeves 3 can be adjusted to make the front subframe 1 suitable for different vehicle models, thus reducing costs. Furthermore, the front subframe 1 is connected to the vehicle body through the same multiple mounting sleeves 3, so different vehicle models can also use bolts of the same length, thereby avoiding incorrect assembly and improving efficiency.

[0047] The mounting sleeve 3 has a toothed end face on the axial end that mates with the vehicle body. The toothed end allows the mounting sleeve 3 to embed itself into the vehicle body when mated, increasing the coefficient of friction between the mounting sleeve 3 and the vehicle body. This reduces the likelihood of misalignment between the mounting sleeve 3 and the front subframe 1, thus improving the connection stability between the front subframe 1 and the vehicle body. The mounting sleeve 3 can be optionally fixed to the vehicle body with bolts.

[0048] Furthermore, a drainage notch is provided at the axial end of the mounting sleeve 3 away from the vehicle body. This drainage notch allows water entering the mounting sleeve 3 to drain promptly, preventing corrosion caused by prolonged immersion. Two drainage notches can be selected, and they are arranged symmetrically at 180° on the mounting sleeve 3. Alternatively, one or more drainage notches can also be selected.

[0049] In some embodiments, refer to Figure 1The aforementioned front subframe 1 includes a front crossbeam 11, a rear crossbeam 12, and a longitudinal beam 13 connecting the front crossbeam 11 and the rear crossbeam 12. The front crossbeam 11 is provided with a front insertion hole 111, and the longitudinal beam 13 is provided with a rear insertion hole 131.

[0050] Understandably, the aforementioned front insertion hole 111 is provided on the front crossbeam 11, so that the front mounting sleeve 3 is mounted on the front crossbeam 11 through the front support 2. The rear insertion hole 131 is provided on the longitudinal beam 13, so that the rear mounting sleeve 3 is mounted on the longitudinal beam 13. This allows both the front crossbeam 11 and the longitudinal beam 13 to be directly connected to the vehicle body, dispersing the force and avoiding the problem of stress concentration.

[0051] It should be noted that the length of the aforementioned front crossbeam 11 is greater than the distance between the two longitudinal beams 13, and the aforementioned front insertion holes 111 are respectively provided at both ends of the aforementioned front crossbeam 11. Of course, in other embodiments, the aforementioned front insertion holes 111 may also be provided on the longitudinal beams.

[0052] In some embodiments, refer to Figure 1 The aforementioned front crossbeam 11 is a tubular beam, and the front insertion hole 111 penetrates the front crossbeam 11.

[0053] Understandably, the front crossbeam 11 is made of tubular beam, which reduces the weight of the front subframe 1 while ensuring a certain structural strength. The front mounting hole 111 passes through the front crossbeam 11, so that the front support 2 can also pass through the front crossbeam 11. Therefore, when the front support 2 and the front crossbeam 11 are welded together, two annular welds can be formed between the front support 2 and the front crossbeam 11, improving the connection strength between the front crossbeam 11 and the front support 2.

[0054] It should be noted that, since the front insertion hole 111 passes through the front crossbeam 11, the front insertion hole 111 forms two openings on the front crossbeam 11, and the front crossbeam 11 is welded to the front support 2 at the two openings to form a circumferential weld.

[0055] For example, refer to Figure 1 The aforementioned front crossbeam 11 is selected as a square tubular beam, in which case the aforementioned front insertion hole 111 penetrates two opposite side walls, such that the front support 2 is welded to the two side walls of the front crossbeam 11. Of course, the aforementioned front crossbeam 11 can also be selected as a circular tubular beam.

[0056] In order to facilitate welding operations, an annular weld can be formed on the outside of the front crossbeam 11, that is, the front crossbeam 11 and the front support 2 are welded together on the outside of the front crossbeam 11.

[0057] In addition, the aforementioned front support 2 can also be selected as a pipe beam. Specifically, the front support 2 is a curved pipe beam. The aforementioned insertion hole penetrates the front support 2, so that the mounting sleeve 3 can also penetrate the front support 2. Thus, when the front support 2 and the mounting sleeve 3 are connected by welding, at least two circumferential welds can be formed between the front support 2 and the mounting sleeve 3, thereby improving the connection strength between the mounting sleeve 3 and the front support 2.

[0058] For example, refer to Figure 1 The aforementioned front support 2 is selected as a circular tube beam. At this time, the insertion hole forms two openings on the front support 2, and the front support 2 is welded to the installation sleeve 3 at each opening to form two welds.

[0059] In some embodiments, refer to Figure 1 The aforementioned longitudinal beam 13 is selected as a tubular beam, and the rear insertion hole 131 penetrates the longitudinal beam 13.

[0060] Understandably, the longitudinal beam 13 is a tubular beam, which reduces the weight of the front subframe 1 while ensuring a certain structural strength. The rear mounting hole 131 penetrates the front crossbeam 11, allowing the mounting sleeve 3 to also penetrate the longitudinal beam 13. This enables two annular welds to be formed between the mounting sleeve 3 and the longitudinal beam 13 when they are welded together, thus improving the connection strength between the mounting sleeve 3 and the longitudinal beam 13.

[0061] It should be noted that since the rear insertion hole 131 passes through the longitudinal beam 13, the rear insertion hole 131 forms two openings on the longitudinal beam 13, and the longitudinal beam 13 is welded to the mounting sleeve 3 at the upper and lower openings to form a circumferential weld.

[0062] For example, refer to Figure 1 The aforementioned longitudinal and transverse beams are selected as circular tubular beams. The longitudinal beam 13 and the mounting sleeve 3 are welded together at each opening to form a circumferential weld, thereby improving the connection strength between the longitudinal beam 13 and the mounting sleeve 3. Of course, the aforementioned front transverse beam 11 can also be selected as a square tubular beam, in which case the aforementioned rear insertion hole 131 is configured to penetrate the two opposite side walls of the front transverse beam 11.

[0063] In some embodiments, refer to Figure 1 and Figure 2 The front subframe 1 is also provided with a positioning hole 141 at its rear end. The positioning hole 141 allows the positioning sleeve 4 to be inserted vertically and provides space for the positioning sleeve 4 to move up and down. The positioning sleeve 4 is used to position the front subframe 1 and the vehicle body.

[0064] Understandably, the positioning sleeve 4 is inserted into the positioning socket 141 and connected to the front subframe. In this way, during assembly, the Z-direction position of the positioning sleeve 4 relative to the front subframe 1 can be adjusted, so that the structure of the front subframe 1 does not need to be adjusted, and the front subframe 1 can be used for different vehicle models.

[0065] Among them, reference Figure 1 The aforementioned front subframe 1 is provided with two positioning holes 141, and a positioning sleeve 4 is inserted into each positioning hole 141. Thus, the positioning of the front subframe 1 and the vehicle body is achieved through the two positioning sleeves 4.

[0066] In some embodiments, refer to Figure 2 The front subframe 1 includes at least one connector 14, and positioning holes 141 pass through all connectors 14. The front subframe 1 has at least one connector 14 on each of its left and right sides.

[0067] Understandably, by providing positioning holes 141 through connector 14, when multiple connectors 14 are provided, not only can the contact area between the positioning sleeve 4 and the front subframe 1 in the axial direction be increased, thus improving the stability of the positioning sleeve 4, but also when the connector 14 and the positioning sleeve 4 are welded together, the number of welds can be increased, thereby improving the connection strength between the connector 14 and the positioning sleeve 4.

[0068] For example, two connectors 14 are provided, at least one of which is used to connect the control arm, and the positioning hole 141 passes through both connectors 14. Thus, when a welded connection is used, the mounting sleeve 3 and the two connectors 14 respectively form welds, improving the stability of the mounting sleeve 3.

[0069] It should be noted that the two connecting pieces 14 are connected to each other, and at least one connecting piece 14 is connected to the longitudinal beam 13 of the front subframe 1. The two connecting pieces 14 can be optionally welded together, and the connecting piece 14 and the longitudinal beam 13 can also be optionally welded together.

[0070] Reference Figure 2 One of the aforementioned connectors 14 is used to connect the control arm. Additionally, the front subframe 1 includes a mating member 15, which cooperates with the connector 14 to connect the control arm. In this case, the mating member 15 and the connector 14 are positioned opposite each other and connected. Furthermore, the mating member 15 is connected to the longitudinal beam 13 of the front subframe 1.

[0071] Among them, the mating part 15 and the connecting part 14 can be selected to be welded together, or the mating part 15 and the connecting part 14 can be selected to be welded to the longitudinal beam 13 of the front subframe 1.

[0072] The positioning sleeve 4 is fixed to the vehicle body with bolts. The end face of the positioning sleeve 4 that mates with the vehicle body in the axial direction is provided with a toothed surface. The toothed surface can embed the positioning sleeve 4 into the vehicle body when it mates with the vehicle body, thereby increasing the coefficient of friction between the positioning sleeve 4 and the vehicle body. This makes it less likely for the positioning sleeve 4 and the vehicle body to misalign, thus improving the connection stability between the front subframe 1 and the vehicle body.

[0073] In addition, a drainage notch is provided at the axial end of the positioning sleeve 4 away from the vehicle body. The drainage notch allows water entering the positioning sleeve 4 to drain out promptly, preventing corrosion caused by prolonged immersion. Two drainage notches can be provided, symmetrically arranged at 180° on the positioning sleeve 4. Alternatively, one or more drainage notches can also be provided.

[0074] For example, refer to Figure 1 and Figure 2 A front subframe 1 is provided. The front subframe 1 has a front insertion hole 111 at its front end for inserting a front support 2 in the vertical direction. The front insertion hole 111 provides space for the front support 2 to move up and down. The front support 2 has an insertion hole for inserting a mounting sleeve 3 in the vertical direction. The insertion hole provides space for the mounting sleeve 3 to move up and down.

[0075] The front subframe 1 has a rear insertion hole 131 at its rear end for inserting the mounting sleeve 3 in the vertical direction. The rear insertion hole 131 provides space for the mounting sleeve 3 to move up and down.

[0076] The front subframe 1 is also provided with a positioning socket 141 at its rear end for the positioning sleeve 4 to be inserted vertically. The positioning socket 141 provides space for the positioning sleeve 4 to move up and down. The positioning sleeve 4 is used to position the front subframe 1 and the vehicle body.

[0077] The front subframe 1 includes a front crossbeam 11, a rear crossbeam 12, and a longitudinal beam 13 connecting the front crossbeam 11 and the rear crossbeam 12. The front crossbeam 11 is provided with a front insertion hole 111, and the longitudinal beam 13 is provided with a rear insertion hole 131.

[0078] The front subframe 1 includes at least one connector 14, and positioning holes 141 pass through all connectors 14. The front subframe 1 has at least one connector 14 on each of its left and right sides.

[0079] At least one of the connectors 14 is welded to the longitudinal beam 13.

[0080] Among them, the two rear insertion holes 131 are located between the two positioning insertion holes 141 in the length direction of the front crossbeam 11.

[0081] like Figures 1 to 6As shown in the illustration, this application also provides a vehicle including the aforementioned front subframe 1. It also includes a front support 2 and a mounting sleeve 3.

[0082] The front support 2 is inserted into the front insertion hole 111 and connected to the front subframe 1. The insertion hole is fitted with an installation sleeve 3, and the front support 2 is connected to the installation sleeve 3. The rear insertion hole 131 is fitted with an installation sleeve 3.

[0083] Understandably, in this vehicle, since the front support 2 is provided with a front insertion hole 111 for connection to the front subframe, the Z-direction position of the front support 2 relative to the front subframe 1 can be adjusted during assembly. The mounting sleeve 3 is inserted into the insertion hole and connected to the front support 2, so the Z-direction position of the mounting sleeve 3 relative to the front subframe can be adjusted during assembly. In other words, the Z-direction position of the mounting sleeve 3 can be adjusted through two methods, so there is no need to adjust the structure of the front subframe 1, which makes the front subframe 1 suitable for different vehicle models.

[0084] Furthermore, since mounting sleeves 3 are provided at both the front and rear ends of the front subframe 1, bolts of the same length can be used to fix the mounting sleeves 3 to the vehicle body, thus avoiding the problem of easy misinstallation.

[0085] It should be noted that the aforementioned front support 2 is welded to the front subframe 1, and the mounting sleeve 3 is welded to either the front support 2 or the front subframe 1. Therefore, when installing the front support 2, the position of the front support 2 within the front insertion hole 111 should be adjusted as needed, and then it should be welded in place. When installing the mounting sleeve 3 onto the front support 2, the position of the mounting sleeve 3 within the insertion hole should be adjusted as needed, and then it should be welded in place.

[0086] In other words, during the assembly of the front subframe 1, front support 2, mounting sleeve 3 and positioning sleeve 4, the Z-axis position of mounting sleeve 3 and positioning sleeve 4 is adjusted. After assembly, the positions of mounting sleeve 3 and positioning sleeve 4 are fixed and cannot be adjusted.

[0087] Reference Figure 4 The mounting sleeve 3 has a hobbing tooth 101 on its axial end face that mates with the vehicle body. The hobbing tooth 101 allows the mounting sleeve 3 to embed into the vehicle body when mated, increasing the coefficient of friction between the mounting sleeve 3 and the vehicle body. This reduces the likelihood of misalignment between the mounting sleeve 3 and the front subframe 1, thus improving the connection stability between the front subframe 1 and the vehicle body. The mounting sleeve 3 can be optionally fixed to the vehicle body with bolts.

[0088] Furthermore, a drainage notch 102 is provided at the axial end of the mounting sleeve 3 away from the vehicle body. The drainage notch 102 allows water entering the mounting sleeve 3 to drain promptly, preventing corrosion caused by prolonged immersion. Two drainage notches 102 can be optionally provided, and the two drainage notches 102 are symmetrically arranged at 180° on the mounting sleeve 3. Alternatively, one or more drainage notches 102 can also be provided.

[0089] In some embodiments, refer to Figure 3 The vehicle also includes a positioning sleeve 4. The front subframe 1 is provided with at least one positioning hole 141 at its rear end for the positioning sleeve 4 to be inserted. The positioning sleeve 4 is used to position the front subframe 1 and the vehicle body.

[0090] Understandably, the mounting sleeve 3 is inserted into the rear mounting hole 131 and connected to the front subframe 1. In this way, the position of the mounting sleeve 3 can be adjusted relative to the front subframe 1 during assembly, so that there is no need to adjust the structure of the front subframe 1, and the front subframe 1 can be used for different vehicle models.

[0091] The positioning sleeve 4 is fixed to the vehicle body with bolts. The end face of the positioning sleeve 4 that mates with the vehicle body in the axial direction is provided with a hobbing tooth 101. The hobbing tooth 101 can embed into the vehicle body when the positioning sleeve 4 mates with the vehicle body, thereby increasing the coefficient of friction between the positioning sleeve 4 and the vehicle body, making it less likely for the positioning sleeve 4 and the vehicle body to misalign, and improving the connection stability between the front subframe 1 and the vehicle body.

[0092] Reference Figure 5 and Figure 6 The positioning sleeve 4 has a drainage notch 102 at its axial end away from the vehicle body. The drainage notch 102 allows water entering the positioning sleeve 4 to drain promptly, preventing corrosion caused by prolonged immersion. Two drainage notches 102 can be selected, and the two notches 102 are symmetrically arranged at 180° on the positioning sleeve 4. Alternatively, one or more drainage notches 102 can be selected.

[0093] For example, two positioning sleeves 4 are provided, and at least one positioning sleeve 4 has a positioning hole that is a strip hole and at least one positioning sleeve 4 has a positioning hole that is a circular hole, and the circular hole and the strip hole have the same diameter.

[0094] Thus, by setting the positioning hole of at least one positioning sleeve 4 as a circular hole and the positioning hole of at least one positioning sleeve 4 as a strip hole, it is convenient for the positioning sleeve 4 on the vehicle body to cooperate with the positioning sleeve 4 on the front subframe 1 to achieve the positioning of the front subframe and the vehicle body.

[0095] It should be noted that, to prevent misinstallation of the positioning sleeve 4, the positioning sleeve 4 is a stepped tube. Thus, the positioning sleeve 4 has a stepped surface 104 formed inside. The stepped surface 104 facilitates the identification of the end of the positioning sleeve 4 that mates with the vehicle body. For example, the end of the positioning sleeve 4 where the stepped surface 104 is not visible axially is defined as the end that mates with the vehicle body. Furthermore, a misinstallation prevention notch 103 can be formed on the outside of the positioning sleeve 4 by cutting. This notch can be used to determine whether the positioning sleeve 4 is installed incorrectly; for example, the end with the misinstallation prevention notch 103 is the end of the positioning sleeve 4 that mates with the vehicle body.

[0096] Of course, the positioning sleeve 4 can also be judged by the hobbing teeth 101 and drainage notch 102 set on the positioning sleeve 4. For example, the end of the positioning sleeve 4 with the hobbing teeth 101 is the end that mates with the vehicle body.

[0097] Reference Figure 7 The vehicle also includes a body 5, and the aforementioned front subframe 1 is connected to the body 5 by bolts 6 passing through the positioning sleeve 4 and the mounting sleeve 3.

[0098] Taking the mounting sleeve 3 as an example, the bolt 6 passes through the mounting sleeve 3 and is inserted into the sleeve on the vehicle body 5, thereby connecting the mounting sleeve 3 and the vehicle body 5, and thus connecting the front subframe 1 and the vehicle body 5. Since the front and rear ends of the front subframe 1 use the same mounting sleeve 3, bolts 6 of the same length are used for fixing, which can avoid the problem of incorrect installation.

[0099] It should be noted that the connection between the positioning sleeve 4 and the body 5 can use the same bolt 6 as the mounting sleeve 3. In this case, the connection between the front subframe 1 and the body 5 can use bolt 6 of the same length, which can further avoid the problem of incorrect installation.

[0100] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0101] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A front subframe, characterized in that, The front subframe (1) has a front insertion hole (111) at its front end. The front insertion hole (111) allows the front support (2) to be inserted in the vertical direction and provides space for the front support (2) to move up and down. The front support (2) has an insertion hole for the installation sleeve (3) to be inserted in the vertical direction. The insertion hole provides space for the installation sleeve (3) to move up and down. The front subframe (1) has a rear insertion hole (131) at its rear end. The rear insertion hole (131) allows the mounting sleeve (3) to be inserted vertically and provides space for the mounting sleeve (3) to move up and down. The front subframe (1) is connected to the vehicle body via the mounting sleeve (3).

2. The front subframe according to claim 1, characterized in that, The front subframe (1) includes a front crossbeam (11), a rear crossbeam (12), and a longitudinal beam (13) connecting the front crossbeam (11) and the rear crossbeam (12). The front crossbeam (11) is provided with the front insertion hole (111), and the longitudinal beam (13) is provided with the rear insertion hole (131).

3. The front subframe according to claim 2, characterized in that, The front crossbeam (11) is a tubular beam, and the front insertion hole (111) passes through the front crossbeam (11). And / or, the longitudinal beam (13) is a tubular beam, and the rear insertion hole (131) passes through the longitudinal beam (13).

4. The front subframe according to claim 1, characterized in that, The front subframe (1) is also provided with a positioning socket (141) at its rear end. The positioning socket (141) allows the positioning sleeve (4) to be inserted in the vertical direction and provides space for the positioning sleeve (4) to move up and down. The positioning sleeve (4) is configured to position the front subframe (1) and the vehicle body.

5. The front subframe according to claim 4, characterized in that, The front subframe (1) includes at least one connector (14), and the positioning socket (141) passes through all of the connectors (14).

6. The front subframe according to claim 5, characterized in that, Two connectors (14) are provided, at least one of the two connectors (14) is used to connect the control arm, and the positioning hole (141) passes through both connectors (14).

7. A vehicle, characterized in that, The vehicle includes a front subframe (1) as described in any one of claims 1-6, and the vehicle further includes a front support (2) and a mounting sleeve (3). The front support (2) is inserted into the front insertion hole (111). The front support (2) has an insertion hole, and the installation sleeve (3) is inserted into the insertion hole. The installation sleeve (3) is inserted into the rear insertion hole (131).

8. The vehicle according to claim 7, characterized in that, The end face of the mounting sleeve (3) that mates with the vehicle body (5) in the axial direction is provided with a hobbing tooth (101). And / or, the end of the mounting sleeve (3) away from the vehicle body (5) in the axial direction is provided with a drainage notch (102).

9. The vehicle according to claim 8, characterized in that, It also includes a positioning sleeve (4), and the front subframe (1) is provided with at least one positioning hole (141) at its rear end for the positioning sleeve (4) to be inserted in the vertical direction. The positioning sleeve (4) is used to position the front subframe (1) and the vehicle body (5).

10. The vehicle according to claim 9, characterized in that, The end face of the positioning sleeve (4) that mates with the vehicle body (5) in the axial direction is provided with a hobbing tooth (101). And / or, the lower end of the positioning sleeve (4) is provided with a drainage notch (102). And / or, the positioning sleeve (4) is provided in multiple ways, and at least one of the positioning sleeves (4) has a positioning hole that is a strip hole, and at least one of the positioning sleeves (4) has a positioning hole that is a circular hole, and the diameter of the circular hole is the same as the width of the strip hole.

Images