Transition flow matching mechanism for pipeline vehicle body and suspension assembly

Abstract

A pipeline vehicle body and suspension assembly transition flow distribution mechanism, including mounting shaft and shaft sleeve, the mounting shaft is equipped with annular flow distribution channel, first type flow distribution hole channel and second type flow distribution hole channel, the annular flow distribution channel sets up on the outside of the mounting shaft, the first type flow distribution hole channel sets up corresponding annular flow distribution channel, one end is used for communicating with external oil circuit, the other end communicates with corresponding annular flow distribution channel, the shaft sleeve is equipped with annular groove corresponding annular flow distribution channel, the annular groove sets up in the inside of the shaft sleeve, and each annular groove is equipped with the connecting hole channel for communicating with external oil circuit, when the mounting shaft and shaft sleeve are assembled together, the annular groove and corresponding annular flow distribution channel butt joint and communicate, the two ends of second type flow distribution hole channel are used for communicating with external oil circuit, the utility model can replace hose, greatly reduce the hose quantity of vehicle body to suspension assembly, effectively reduce the risk of hose breakage, reduce the soft and hard tube conversion node in many places, make the pipeline arrangement more simple and orderly.

Description

Technical Field

[0001] This utility model relates to the field of fluid transmission and control, and in particular to a transition flow distribution mechanism between a pipeline vehicle body and a suspension assembly. Background Technology

[0002] In the field of construction machinery, especially in the design of large engineering transport vehicles (such as modular vehicles and flatbed trucks), the pipeline connection between the vehicle body and suspension components (including brake axles and drive axles) is a key link to ensure the normal operation of the vehicle's hydraulic system, braking system, etc.

[0003] In existing technologies, to accommodate complex movements such as vehicle body lifting and steering, flexible hoses are commonly used for connections from the body piping to the suspension cylinder piping, drive axle piping, and brake axle piping. While this connection method can meet certain motion adaptability requirements, it has revealed many problems in practical applications:

[0004] On the one hand, during vehicle lifting, lowering, or steering, the connecting hoses will frequently oscillate with the movement. This oscillation poses a risk of the hoses being cut. At the same time, excessive oscillation of the hoses can disrupt the overall structural harmony of the vehicle, affecting its appearance and aesthetics.

[0005] On the other hand, due to the complexity of vehicle functions, a large number of pipes need to be laid between the body and suspension components. There are many soft and hard pipe conversion nodes in the pipe connection, which increases the difficulty of pipe construction and raises the requirements for the skill level of construction personnel. This significantly increases labor costs and assembly time, which is not conducive to improving vehicle production efficiency.

[0006] Especially for the drive axle section, which requires a greater number of connecting hoses, the above problems are more prominent, and issues such as the risk of hose breakage and excessively high construction costs urgently need to be addressed.

[0007] Therefore, optimizing the pipe connection structure between the vehicle body and suspension components, reducing the number of hoses used, lowering the risk of hose breakage, improving system safety, simplifying the pipe construction process, reducing labor costs, and achieving a compact structure have become urgent technical problems to be solved in this field. Utility Model Content

[0008] To address the aforementioned problems, this utility model proposes a transition flow distribution mechanism between the pipeline body and the suspension assembly. The technical solution used is as follows:

[0009] A flow distribution mechanism for transition between a pipeline vehicle body and a suspension assembly includes a mounting shaft and a bushing;

[0010] The mounting shaft is provided with an annular distribution channel and a first type of distribution channel; the annular distribution channel is provided on the outer side of the mounting shaft; the first type of distribution channel is provided corresponding to the annular distribution channel, one end of which is used to connect to an external oil circuit, and the other end is connected to the corresponding annular distribution channel.

[0011] The bushing is provided with an annular groove corresponding to the annular distribution channel. The annular groove is provided on the inner side of the bushing, and each annular groove is provided with a connection channel for communicating with an external oil circuit.

[0012] When the mounting shaft and the shaft assembly are fitted together, the annular groove connects and communicates with the corresponding annular distribution channel.

[0013] The mounting shaft is also provided with a second type of flow distribution channel, both ends of which are used to connect to an external oil circuit.

[0014] The bushing has an internal sealing structure.

[0015] The sealing structure adopts a shaft step seal and a lip seal ring. The inner side of the shaft sleeve is provided with a step seal mounting groove corresponding to the shaft step seal and a lip seal ring mounting groove corresponding to the lip seal ring.

[0016] The first type of distribution channel is provided with a branch channel that communicates with the outside of the mounting shaft, and the branch channel is equipped with a plug.

[0017] The bushing and the mounting shaft can rotate relative to each other.

[0018] The mounting shaft is fixedly mounted on the vehicle frame; the bushing is fixedly mounted on the vehicle's suspension boom and is driven to rotate by a rotary drive device.

[0019] The rotary drive device uses a rack cylinder, and the bushing is fixedly connected to the gear of the rack cylinder.

[0020] Because this utility model adopts the above-described technical solution, it has the following advantages:

[0021] This invention, through the design of mounting shaft and bushing, can replace hoses, significantly reducing the number of hoses from the vehicle body to the suspension components, effectively reducing the risk of hose breakage, ensuring the stable operation of hydraulic systems, braking systems, etc., and significantly improving the overall safety of the vehicle.

[0022] This invention reduces the number of hoses between the vehicle body and suspension components, and also reduces the number of transition points between flexible and rigid hoses. This makes the pipeline layout simpler and more orderly, reduces the difficulty of pipeline assembly, reduces reliance on highly skilled construction personnel, thereby shortening assembly time, significantly reducing labor costs, and improving vehicle production efficiency.

[0023] This utility model has a compact structure and a high degree of integration, replacing the original numerous and messy hose connections. It avoids the damage to the overall structural coordination of the vehicle caused by a large number of hose swings, making the vehicle appearance cleaner and more beautiful, and improving the overall quality of the vehicle. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0025] Figure 2 This is a schematic diagram of the assembly structure of this utility model with the suspension boom and rack cylinder.

[0026] Figure 3 This is a schematic diagram of the assembly structure of the present invention with the suspension boom and rack and pinion gear.

[0027] Figure 4 This is a schematic diagram of the assembly structure of the present invention with the suspension boom, rack cylinder, and frame.

[0028] Figure 5 This utility model Figure 4 A schematic cross-sectional view of section AA.

[0029] Figure 6 This utility model Figure 5 A cross-sectional view of the shaft and bushing being installed.

[0030] Figure 7 This is a cross-sectional view of the mounting shaft BB section of this utility model.

[0031] Figure 8 This is a cross-sectional view of the CC section of the mounting shaft of this utility model.

[0032] Figure 9 This is a cross-sectional schematic diagram of the mounting shaft DD section and EE section of this utility model.

[0033] Figure 10 This is a cross-sectional schematic diagram of the FF section of the bushing of this utility model.

[0034] Icon labels:

[0035] 1-Mount shaft;

[0036] 101a - Type I distribution channel one; 101b - Type I distribution channel two; 101c - Type I distribution channel three;

[0037] 102a - Type II distribution channel one; 102b - Type II distribution channel two;

[0038] 103a - Annular distribution channel one; 103b - Annular distribution channel two; 103c - Annular distribution channel three;

[0039] 2-Sleeve;

[0040] 201a - Annular groove one; 201b - Annular groove two; 201c - Annular groove three;

[0041] 202-Step seal installation slot;

[0042] 203 - Lip seal mounting groove;

[0043] 3-Chassis; 4-Rack cylinder; 401-Gear; 5-Suspension boom; 6-End cover; 7-Shaft seal; 8-Lip seal; 9-Bearing. Detailed Implementation

[0044] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this utility model; however, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0045] In the description of this utility model, it should be noted that the terms "upper", "lower", "in", "out", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Example

[0046] A pipe body and suspension assembly overcurrent distribution mechanism, such as Figure 1 As shown, it includes mounting shaft 1 and bushing 2.

[0047] like Figures 7-9 As shown, the mounting shaft 1 is equipped with:

[0048] The number of annular distribution channels can be adjusted during actual production. This embodiment uses three annular distribution channels as an example, including annular distribution channel one 103a, annular distribution channel two 103b, and annular distribution channel three 103c. The annular distribution channels are set on the outer side of the mounting shaft 1. In this embodiment, annular distribution channels one 103a, annular distribution channel two 103b, and annular distribution channel three 103c are arranged from top to bottom in the lower half of the mounting shaft 1.

[0049] The first type of distribution channel corresponds to the annular distribution channel. This embodiment uses three first type of distribution channels as an example for explanation, including first type of distribution channel 101a, first type of distribution channel 2 101b and first type of distribution channel 3 101c. One end of the first type of distribution channel is used to connect with an external oil circuit, and the other end is connected with the corresponding annular distribution channel. In this embodiment, the upper end of the first type of distribution channel is provided with a radial outlet for connecting with an external oil circuit, and then extends axially along the mounting shaft 1 to the lower end, where the lower end is provided with a radial outlet connected with the corresponding annular distribution channel. First type of distribution channel 101a is connected with annular distribution channel 103a, first type of distribution channel 2 101b is connected with annular distribution channel 2 103b, and first type of distribution channel 3 101c is connected with annular distribution channel 3 103c.

[0050] The number of the second type of distribution channels can be adjusted in actual production. This embodiment uses two as an example for illustration, including the second type of distribution channel 102a and the second type of distribution channel 102b. Both ends of the second type of distribution channel are used to connect with the external oil circuit. In this embodiment, the upper end of the second type of distribution channel is provided with a radial outlet for connecting with the external oil circuit, and then extends axially along the mounting shaft 1 to the bottom end of the mounting shaft 1, with the bottom outlet connected to the outside.

[0051] like Figure 10 As shown, the bushing 2 is provided with:

[0052] The annular grooves correspond to the annular distribution channels. In this embodiment, three grooves are used as an example for illustration, including annular groove one 201a, annular groove two 201b and annular groove three 201c. The annular grooves are set on the inner side of the bushing 2, and each annular groove is provided with a connecting channel for communicating with an external oil circuit.

[0053] like Figure 6 As shown, when the mounting shaft 1 and the bushing 2 are assembled together, the annular groove is connected to and communicates with the corresponding annular distribution channel. In this embodiment, the annular groove 201a is connected to and communicates with the annular distribution channel 103a, the annular groove 201b is connected to and communicates with the annular distribution channel 103b, and the annular groove 201c is connected to and communicates with the annular distribution channel 103c.

[0054] To isolate and seal the oil in each annular distribution channel and annular groove, the bushing 2 is provided with a sealing structure; in this embodiment, the sealing structure adopts a shaft step seal 7 and a lip seal ring 8, such as... Figure 6 As shown, each annular groove has a shaft seal 7 installed at both its upper and lower ends. Annular groove 1 (201a) and annular groove 3 (201c) are circulated with high-pressure hydraulic oil during operation, therefore, lip seals 8 are installed on the outside of their respective shaft seals 7. Annular groove 2 (201b) is connected to low-pressure drain oil during operation, so lip seals 8 are not required. Figure 10As shown, the inner side of the bushing 2 is provided with a step seal mounting groove 202 corresponding to the step seal 7, and a lip seal mounting groove 203 corresponding to the lip seal 8.

[0055] As a specific implementation of this embodiment, the first type of distribution channel is also provided with a branch channel communicating with the outside of the mounting shaft 1, such as... Figures 7-8 As shown, the branch channels of the first type of flow distribution channel 101a, the second type of flow distribution channel 101b, and the third type of flow distribution channel 101c are radially connected to the outside through the upper part of the mounting shaft 1; the branch channels are equipped with plugs that can block and seal the process holes and the top of the first type of flow distribution channel 101a, the second type of flow distribution channel 101b, and the third type of flow distribution channel 101c.

[0056] As a specific implementation of this embodiment, countersunk surfaces for installing pipe fittings are provided on the interfaces of the first type of distribution channel, the second type of distribution channel and the connecting channel of the annular groove that communicate with the outside.

[0057] The following is an example of its application:

[0058] The radial outlets at the upper ends of the first and second type distribution channels are connected to the power compartment via seamless steel pipes.

[0059] The connecting channel of annular groove 201b is connected to the external hydraulic motor drain line through a pipe joint installed on the side of bushing 2. The connecting channels of annular groove 1 201a and annular groove 3 203c are connected to the external hydraulic motor drive A port and B port line through pipe joints installed on the side of bushing 2. The bottom outlet of the second type of distribution channel 102a and the second type of distribution channel 2 102b is connected to the braking oil circuit of the deceleration mechanism and the hydraulic suspension oil circuit.

[0060] Taking the first type of distribution channel 101a, the annular distribution channel 103a and the annular groove 201a as examples, during operation, the high-pressure oil delivered from the power compartment to drive the vehicle enters the first type of distribution channel 101a and the annular distribution channel 103a in sequence through the pipe joint, and finally enters the pipeline of the hydraulic motor drive port A through the connecting channel of the annular groove 201a, thus completing the pipeline distribution and eliminating the hydraulic hoses from the current body to the suspension components.

[0061] The installation example in this embodiment is as follows:

[0062] like Figures 2-5As shown, the mounting shaft 1 is fixedly mounted on the vehicle frame 3, and the bushing 2 is fitted onto the mounting shaft 1 and fixedly mounted on the vehicle's suspension boom 5; the bushing 2 is driven to rotate by a rotary drive device, which can be a rack cylinder 4, and the bushing 2 is fixedly connected to the gear 401 of the rack cylinder 4; the bushing 2 and the mounting shaft 1 can rotate relative to each other, and a bearing 9 is installed between them; an end cap 6 is fixedly mounted on the bottom end of the bushing 2.

[0063] The rack cylinder 4 drives the bushing 2 to rotate, and the bushing 2 drives the suspension boom 5 to rotate, thereby steering the wheels.

Claims

1. A flow distribution mechanism for the transition between a pipeline vehicle body and a suspension assembly, characterized in that, Includes mounting shafts and bushings; The mounting shaft is provided with an annular distribution channel and a first type of distribution channel; the annular distribution channel is provided on the outer side of the mounting shaft; the first type of distribution channel is provided corresponding to the annular distribution channel, one end of which is used to connect to an external oil circuit, and the other end is connected to the corresponding annular distribution channel. The bushing is provided with an annular groove corresponding to the annular distribution channel. The annular groove is provided on the inner side of the bushing, and each annular groove is provided with a connection channel for communicating with an external oil circuit. When the mounting shaft and the shaft assembly are fitted together, the annular groove connects and communicates with the corresponding annular distribution channel.

2. The pipeline body and suspension assembly transition flow distribution mechanism according to claim 1, characterized in that, The mounting shaft is also provided with a second type of flow distribution channel, both ends of which are used to connect to an external oil circuit.

3. The pipeline body and suspension assembly transition flow distribution mechanism according to claim 1, characterized in that, The bushing has an internal sealing structure.

4. The pipeline body and suspension assembly transition flow distribution mechanism according to claim 3, characterized in that, The sealing structure adopts a shaft step seal and a lip seal ring. The inner side of the shaft sleeve is provided with a step seal mounting groove corresponding to the shaft step seal and a lip seal ring mounting groove corresponding to the lip seal ring.

5. The pipeline body and suspension assembly transition flow distribution mechanism according to claim 1, characterized in that, The first type of distribution channel is provided with a branch channel that communicates with the outside of the mounting shaft, and the branch channel is equipped with a plug.

6. The pipeline body and suspension assembly transition distribution mechanism according to any one of claims 1-5, characterized in that, The bushing and the mounting shaft can rotate relative to each other.

7. The pipeline body and suspension assembly transition flow distribution mechanism according to claim 6, characterized in that, The mounting shaft is fixedly mounted on the vehicle frame; the bushing is fixedly mounted on the vehicle's suspension boom and is driven to rotate by a rotary drive device.

8. The pipeline body and suspension assembly transition flow distribution mechanism according to claim 7, characterized in that, The rotary drive device is a rack cylinder, and the bushing is fixedly connected to the gear of the rack cylinder.

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