Hydraulic pump assembly and vehicle

Abstract

This application provides a hydraulic pump assembly and a vehicle. The hydraulic pump assembly includes a hydraulic pump, a mounting frame, and a connecting frame. The mounting frame is connected to opposite sides of the hydraulic pump. The connecting frame is mounted to the mounting frame and is used for mounting to the vehicle body. At least one elastic spacer is provided at the connection between the mounting frame and the connecting frame. The connecting frame, which is mounted to the vehicle body, creates mounting space for the hydraulic pump, allowing it to be mounted on both sides in the installation environment. The hydraulic pump is mounted to the connecting frame via the mounting frame. Unlike the fixed size of the hydraulic pump's end, the mounting frame can be flexibly designed with a distribution area. This provides sufficient area for the elastic spacer between the mounting frame and the connecting frame, which then acts as a vibration damper. This creates a buffer and vibration damping effect on both sides of the hydraulic pump, solving the problem in the prior art of reducing the NVH impact of hydraulic pump vibration in active suspension systems on vehicles.

Description

Technical Field

[0001] This application relates to the field of vehicle engineering technology, specifically to a hydraulic pump assembly and a vehicle. Background Technology

[0002] In related technologies, many vehicle models are equipped with active suspension systems, which can adjust the suspension stiffness according to the unevenness of the road surface and the vehicle load. Among them, the hydraulic pump is the main power source of the active suspension system. The hydraulic pump can send hydraulic oil to the hydraulic cylinder according to the signal command given by the vehicle.

[0003] However, the operation of a hydraulic pump inevitably generates vibration. How to reduce the impact of hydraulic pump vibration on the vehicle's NVH (Noise, Vibration, Harshness) to improve in-vehicle ride comfort has become a direction for exploration by those skilled in the art. Utility Model Content

[0004] In view of this, this application provides a hydraulic pump assembly and a vehicle to solve the problem in the prior art of how to reduce the impact of hydraulic pump vibration of active suspension system on the NVH of vehicle.

[0005] To achieve the above objectives, this application provides the following technical solution:

[0006] A hydraulic pump assembly, comprising:

[0007] Hydraulic pump;

[0008] Assembly frame, connected to opposite sides of the hydraulic pump;

[0009] A connecting bracket is installed and connected to the assembly bracket, and the connecting bracket is used for installation and connection with the vehicle body;

[0010] Wherein, at least the connection between the assembly frame and the connecting frame is provided with an elastic spacer.

[0011] Optionally, the assembly frame has a first connecting hole, the elastic spacer is an elastic bushing disposed in the first connecting hole, the first fastener connecting the connecting frame and the assembly frame is located in the elastic bushing, and the elastic bushing protrudes from the surface of the assembly frame and abuts against the connecting frame.

[0012] Optionally, the hydraulic pump has a threaded blind hole, and the mounting bracket has a second connecting hole. A second fastener connecting the mounting bracket and the hydraulic pump passes through the second connecting hole and is threadedly connected to the threaded blind hole; or,

[0013] The assembly frame and the hydraulic pump are vulcanized into a single structure.

[0014] Optionally, the connecting frame includes a first connecting bracket and a second connecting bracket symmetrically distributed about the hydraulic pump, and the first connecting bracket and the second connecting bracket are respectively fastened to the vehicle body.

[0015] Optionally, both the first connecting bracket and the second connecting bracket include a first plate portion, a second plate portion, a third plate portion, and a fourth plate portion that are bent and connected in sequence, and the first plate portion, the second plate portion, the third plate portion, and the fourth plate portion form a cavity.

[0016] The first plate has a third connection hole for mounting and connecting with the assembly frame, and the second plate has a fourth connection hole for mounting and connecting with the vehicle body.

[0017] Optionally, at least one of the first plate portion, the second plate portion, the third plate portion, and the fourth plate portion is provided with a weight reduction hole.

[0018] Optionally, the first plate portion has weight-reducing holes, and the third connecting holes are provided in multiple portions and are symmetrically distributed about the weight-reducing holes.

[0019] Optionally, the assembly frame includes a first assembly bracket and a second assembly bracket symmetrically distributed about the hydraulic pump, wherein the first assembly bracket is fastened to the first connecting bracket, and the second assembly bracket is fastened to the second connecting bracket.

[0020] Optionally, the connecting frame can be installed and connected to the vehicle body along the Z-direction, the mounting frame is connected to the connecting frame along the Y-direction, and the hydraulic pump is connected to the mounting frame along the Y-direction.

[0021] A vehicle comprising a hydraulic pump assembly as described in any of the preceding claims, the hydraulic pump assembly being connected to a subframe of the vehicle body.

[0022] The hydraulic pump assembly provided in this application includes a hydraulic pump, a mounting frame, and a connecting frame. The mounting frame is connected to opposite sides of the hydraulic pump. The connecting frame is mounted to the mounting frame and is used for mounting to the vehicle body. At least one elastic spacer is provided at the connection between the mounting frame and the connecting frame. This design takes into account that the vehicle body typically lacks the structural conditions for direct installation of the hydraulic pump. Therefore, in the hydraulic pump assembly provided in this application, the connecting frame, which is mounted to the vehicle body, creates mounting space for the hydraulic pump, allowing for dual-sided mounting in the installation environment, ensuring stable and reliable installation. Simultaneously, the hydraulic pump has a direct mounting connection to the mounting frame, meaning the hydraulic pump is mounted to the connecting frame via the mounting frame. Unlike the fixed size of the hydraulic pump's end, the mounting frame can be flexibly designed with a distribution area, providing sufficient space for the elastic spacer between the mounting frame and the connecting frame. The elastic spacer then acts as a vibration damper, creating a buffer and vibration isolation on both sides of the hydraulic pump. This provides excellent vibration isolation and solves the problem of reducing the NVH impact of hydraulic pump vibration in active suspension systems on vehicles, improving ride stability and comfort. Attached Figure Description

[0023] 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, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0024] Figure 1 This is a diagram showing the position of a hydraulic pump assembly installed on a vehicle body according to one embodiment of this application.

[0025] Figure 2 for Figure 1 A schematic diagram of the hydraulic pump assembly in the diagram;

[0026] Figure 3 A diagram showing the position of the hydraulic pump assembly installed on the vehicle body according to another embodiment of this application;

[0027] Figure 4 for Figure 3 A schematic diagram of the hydraulic pump assembly in the diagram;

[0028] Figure 5 A schematic diagram illustrating the connection between the first connecting bracket and the first assembly bracket according to another embodiment of this application;

[0029] Figure 6 A first-view view of a first connecting bracket and a second connecting bracket provided in another embodiment of this application;

[0030] Figure 7 A second perspective view of the first connecting bracket and the second connecting bracket provided in another embodiment of this application.

[0031] exist Figures 1-7 middle:

[0032] 1. First connecting bracket; 2. Second connecting bracket; 3. First assembly bracket; 4. Second assembly bracket; 5. Hydraulic pump; 6. Elastic bushing; 7. First fastener; 9. Subframe;

[0033] 11. First board section; 12. Second board section; 13. Third board section; 14. Fourth board section;

[0034] 101. Third connecting hole; 102. Fourth connecting hole; 103. Weight reduction hole. Detailed Implementation

[0035] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0036] like Figures 1-7 As shown, this application embodiment provides a hydraulic pump assembly, including a hydraulic pump 5, an assembly frame, and a connecting frame; the assembly frame is connected to opposite sides of the hydraulic pump 5; the connecting frame is installed and connected to the assembly frame by fasteners, and the connecting frame is used to install and connect to the vehicle body by fasteners; wherein, at least the connection between the assembly frame and the connecting frame is provided with an elastic spacer.

[0037] This design takes into account that the vehicle body usually does not have the structural conditions for direct installation of the hydraulic pump 5. Therefore, in the hydraulic pump assembly provided in this application, a mounting space for the hydraulic pump 5 is created through a connecting bracket that is connected to the vehicle body, allowing the hydraulic pump 5 to be mounted on both sides in the installation environment, ensuring stable and reliable installation. At the same time, the hydraulic pump 5 has a direct mounting connection with the mounting bracket, that is, the hydraulic pump 5 is mounted on the connecting bracket through the mounting bracket. Unlike the fixed size of the end of the hydraulic pump 5, the size of the mounting bracket can be flexibly designed and distributed. This provides sufficient area for the mounting bracket to arrange the elastic spacers between it and the connecting bracket. The elastic spacers then serve as vibration damping elements, thus forming a buffer and vibration isolation on both sides of the hydraulic pump 5. The vibration isolation effect is good, solving the problem of how to reduce the vibration of the hydraulic pump 5 of the active suspension system on the NVH of the vehicle in the prior art, and improving the stability and comfort of the ride.

[0038] Furthermore, the hydraulic pump 5 is installed on both sides in the installation environment, which allows the hydraulic pump 5 to be distributed laterally. This saves space in the Z-direction of the vehicle body, which helps to increase the ground clearance of the vehicle body and improve the vehicle's obstacle crossing ability.

[0039] It should be noted that the hydraulic pump assembly provided in this application can be specifically installed and connected to the subframe 9 of the vehicle body.

[0040] In some specific embodiments, the assembly frame has a first connecting hole, the elastic spacer is an elastic bushing 6 disposed in the first connecting hole, the connecting frame has a third connecting hole 101 opposite to the first connecting hole, and a first fastener 7 connecting the connecting frame and the assembly frame is located in the elastic bushing 6, the first fastener 7 passing through the elastic bushing 6 and the third connecting hole 101, the elastic bushing 6 protruding from the surface of the assembly frame and abutting against the connecting frame. Specifically, the elastic bushing 6 includes a hollow rubber column and a sleeve located in the rubber column, the rubber column and the sleeve are vulcanized as one piece, and the sleeve provides support. The first fastener 7 can be a bolt, a bolt and nut assembly, a screw and nut assembly, etc.

[0041] With this configuration, since the elastic bushing 6 protrudes from the surface of the assembly frame, when the assembly frame and the connecting frame are installed and connected, the end of the elastic bushing 6 abuts against the assembly frame and the connecting frame first, which helps to achieve a better vibration isolation effect.

[0042] Of course, in addition to the above methods, it is also feasible to use rubber gaskets placed between the assembly frame and the connecting frame as elastic spacers.

[0043] In some other specific embodiments, the mounting bracket can be installed on opposite sides of the hydraulic pump 5 via fasteners. The hydraulic pump 5 has threaded blind holes, and the mounting bracket has a second connecting hole. A second fastener connecting the mounting bracket and the hydraulic pump 5 passes through the second connecting hole and is threadedly connected to the threaded blind hole. The second fastener can be a bolt, screw, etc.

[0044] With this configuration, the hydraulic pump 5 is connected to the assembly frame via a blind hole threaded connection. The tight fit between the second fastener and the threaded blind hole enhances the structural stability of the hydraulic pump assembly, reduces the possibility of vibration and loosening, and this connection can also distribute stress, reduce stress concentration, improve the strength and reliability of the connection, and help extend the service life of the assembly frame and the connecting frame.

[0045] In some other specific embodiments, the mounting frame and the hydraulic pump 5 can be vulcanized into a single structure. For example, please refer to... Figures 3-5 .

[0046] With this configuration, the integrated structure formed by the assembly frame and the hydraulic pump 5 has higher structural stability.

[0047] Of course, in addition to the above methods, it is also feasible for the hydraulic pump 5 to be equipped with a connecting ear, and the second fastener to be a bolt and nut assembly, with the connecting ear connected to the assembly frame through the bolt and nut assembly.

[0048] In some other specific embodiments, the connecting frame includes a first connecting bracket 1 and a second connecting bracket 2 symmetrically distributed about the hydraulic pump 5, and the first connecting bracket 1 and the second connecting bracket 2 are respectively fastened to the vehicle body.

[0049] With this configuration, the connecting bracket is a split design, which can be flexibly installed and connected on the vehicle body according to the actual installation environment on the vehicle body and the size of the hydraulic pump 5, making it highly feasible. For example, the first connecting bracket 1 and the second connecting bracket 2 are distributed along the Y direction of the vehicle body.

[0050] In some other specific embodiments, both the first connecting bracket 1 and the second connecting bracket 2 include a first plate portion 11, a second plate portion 12, a third plate portion 13, and a fourth plate portion 14 that are bent and connected in sequence, and the first plate portion 11, the second plate portion 12, the third plate portion 13, and the fourth plate portion 14 form a cavity, that is, the first connecting bracket 1 and the second connecting bracket 2 are hollow polyhedral in shape; the first plate portion 11 has a third connecting hole 101 for mounting and connecting with the mounting bracket, and the second plate portion 12 has a fourth connecting hole 102 for mounting and connecting with the vehicle body. The first plate portion 11 may be perpendicular to the second plate portion 12, the second plate portion 12 may be perpendicular to the third plate portion 13, and the third plate portion 13 may be perpendicular to the fourth plate portion 14.

[0051] With this configuration, the first connecting bracket 1 and the second connecting bracket 2 can achieve both high structural stability and lightweight structure.

[0052] It should be noted that there are multiple fourth connecting holes 102, and these multiple fourth connecting holes 102 can be irregularly distributed, such as... Figures 3-7 As shown; they can also be arranged in a straight line, such as... Figure 1 and Figure 2 As shown, this application does not impose any limitations.

[0053] Furthermore, in some optional embodiments, at least one of the first plate portion 11, the second plate portion 12, the third plate portion 13, and the fourth plate portion 14 is provided with a weight reduction hole 103, which can further facilitate the lightweight design of the first connecting bracket 1 and the second connecting bracket 2. Figure 6 and Figure 7 The first plate portion 11 and the fourth plate portion 14 are shown in the example having weight reduction holes 103.

[0054] In some preferred embodiments, the first plate portion 11 has a weight reduction hole 103, and the third connecting hole 101 has a plurality of holes and is symmetrically distributed about the weight reduction hole 103. Figure 6 and Figure 7 The example shows two third connection holes 101, which are symmetrically distributed on both sides of the weight reduction hole 103.

[0055] With this configuration, the weight reduction holes 103 are located between multiple connection points of the connecting frame and the assembly frame, which can play an auxiliary role in buffering and vibration reduction, and optimize the vibration isolation effect of the connecting frame and the assembly frame.

[0056] In some other specific embodiments, the assembly frame includes a first assembly bracket 3 and a second assembly bracket 4 symmetrically distributed about the hydraulic pump 5. The first assembly bracket 3 is fastened to the first connecting bracket 1, and the second assembly bracket 4 is fastened to the second connecting bracket 2.

[0057] This configuration, with its split design, allows for flexible installation and connection with the first connecting bracket 1 and the second connecting bracket 2, depending on the actual installation environment on the vehicle body and the size of the hydraulic pump 5, resulting in high feasibility. For example, the first mounting bracket 3 and the second mounting bracket 4 follow the first connecting bracket 1 and the second connecting bracket 2, and are distributed along the Y-axis of the vehicle body.

[0058] In some other specific embodiments, the connecting frame can be installed and connected to the vehicle body along the Z-direction, the mounting frame is connected to the connecting frame along the Y-direction, and the hydraulic pump 5 is connected to the mounting frame along the Y-direction.

[0059] With this setup, the applicant found that the vehicle body could not provide a mounting position in the Z direction. Therefore, after connecting to the vehicle body via a connecting bracket, the connecting bracket provides the mounting space in the Z direction, and the mounting bracket connected to the connecting bracket provides the mounting position of the hydraulic pump 5 in the Y direction, so that the hydraulic pump 5 can be installed laterally in the usage environment.

[0060] For ease of explanation, the Y-axis of the vehicle body has already been... Figure 1 and Figure 3 As shown in the figure, the Z-axis of the vehicle body is perpendicular to the plane of the paper.

[0061] Based on the aforementioned hydraulic pump assembly, this application also provides a vehicle that includes the aforementioned hydraulic pump assembly. Since the vehicle has the aforementioned hydraulic pump assembly, which is connected below the subframe 9 of the vehicle body, the beneficial effects of the hydraulic pump assembly on the vehicle are described above and will not be repeated here.

[0062] The basic principles of this application have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this application are merely examples and not limitations, and should not be considered as essential features of each embodiment of this application. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the application to the necessity of employing the aforementioned specific details for implementation.

[0063] The block diagrams of devices, apparatuses, devices, and systems involved in this application are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, devices, and systems can be connected, arranged, and configured in any manner. Words such as “comprising,” “including,” “having,” etc., are open-ended terms meaning “including but not limited to,” and are used interchangeably with them. The terms “or” and “and” as used herein refer to the terms “and / or,” and are used interchangeably with them unless the context clearly indicates otherwise. The term “such as” as used herein refers to the phrase “such as but not limited to,” and is used interchangeably with it.

[0064] It should also be noted that in the apparatus, equipment, and methods of this application, the components or steps can be disassembled and / or recombined. These disassemblies and / or recombinations should be considered as equivalent solutions of this application.

[0065] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use this application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of this application. Therefore, this application is not intended to be limited to the aspects shown herein, but rather to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0066] It should be understood that the qualifiers “first,” “second,” “third,” “fourth,” “fifth,” and “sixth” used in the description of the embodiments of this application are only used to more clearly illustrate the technical solutions and are not intended to limit the scope of protection of this application.

[0067] The above description has been given for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of this application to the forms disclosed herein. Although numerous exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.

Claims

1. A hydraulic pump assembly, characterized by, include: Hydraulic pump (5); The mounting bracket is connected to the opposite sides of the hydraulic pump (5); A connecting bracket is installed and connected to the assembly bracket, and the connecting bracket is used for installation and connection with the vehicle body; Wherein, at least the connection between the assembly frame and the connecting frame is provided with an elastic spacer.

2. The hydraulic pump assembly of claim 1, wherein, The assembly frame has a first connecting hole, and the elastic spacer is an elastic bushing (6) disposed in the first connecting hole. The first fastener (7) connecting the connecting frame and the assembly frame is located in the elastic bushing (6). The elastic bushing (6) protrudes from the surface of the assembly frame and abuts against the connecting frame.

3. The hydraulic pump assembly of claim 1, wherein, The hydraulic pump (5) is provided with a threaded blind hole, and the assembly frame is provided with a second connecting hole. The second fastener connecting the assembly frame and the hydraulic pump (5) passes through the second connecting hole and is threadedly connected to the threaded blind hole. or, The assembly frame and the hydraulic pump (5) are vulcanized into a single structure.

4. The hydraulic pump assembly of claim 1, wherein, The connecting frame includes a first connecting bracket (1) and a second connecting bracket (2) symmetrically distributed about the hydraulic pump (5), and the first connecting bracket (1) and the second connecting bracket (2) are respectively fastened to the vehicle body.

5. The hydraulic pump assembly of claim 4, wherein, The first connecting bracket (1) and the second connecting bracket (2) each include a first plate portion (11), a second plate portion (12), a third plate portion (13) and a fourth plate portion (14) that are bent and connected in sequence, and the first plate portion (11), the second plate portion (12), the third plate portion (13) and the fourth plate portion (14) form a cavity; The first plate (11) has a third connection hole (101) for mounting connection with the mounting frame, and the second plate (12) has a fourth connection hole (102) for mounting connection with the vehicle body.

6. The hydraulic pump assembly of claim 5, wherein, At least one of the first plate portion (11), the second plate portion (12), the third plate portion (13), and the fourth plate portion (14) is provided with a weight reduction hole (103).

7. The hydraulic pump assembly of claim 5, wherein, The first plate portion (11) has a weight reduction hole (103), and the third connecting hole (101) has multiple holes and is symmetrically distributed about the weight reduction hole (103).

8. The hydraulic pump assembly of claim 4, wherein, The assembly frame includes a first assembly bracket (3) and a second assembly bracket (4) symmetrically distributed about the hydraulic pump (5). The first assembly bracket (3) is fastened to the first connecting bracket (1), and the second assembly bracket (4) is fastened to the second connecting bracket (2).

9. The hydraulic pump assembly of claim 1, wherein, The connecting frame can be installed and connected to the vehicle body along the Z-direction of the vehicle body, the mounting frame is connected to the connecting frame along the Y-direction of the vehicle body, and the hydraulic pump (5) is connected to the mounting frame along the Y-direction of the vehicle body.

10. A vehicle, characterized in that, Includes the hydraulic pump assembly as described in any one of claims 1-9, the hydraulic pump assembly being connected below the subframe (9) of the vehicle body.

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