Valve sleeve for electronic steering engine

Abstract

The utility model discloses a valve sleeve for an electronic steering machine, which comprises a valve body, two clamping components are arranged in the valve body, the two clamping components are respectively and symmetrically distributed, each clamping component comprises a fixed cylinder, and the fixed cylinder is fixedly connected in the valve body. Through the cooperation between the valve body and the clamping assembly, when the valve body is installed, only the clamping sliding column needs to be aligned with the clamping groove of the installation base, then the valve body is pushed into the installation base, then the stud is screwed, the inclined face of the clamping sliding column is extruded through the ball, the clamping sliding column is clamped into the clamping groove, and then installation and fixation of the whole valve sleeve can be rapidly completed; the mounting time is greatly shortened, when the valve body needs to be maintained or replaced, the clamping sliding column can be quickly separated from the clamping groove only by reversely screwing the stud and utilizing cooperation of the reset spring and the limiting plate, quick disassembly of the whole valve sleeve is achieved, and through the design of the clamping assembly, the valve body can be quickly mounted and disassembled.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile steering machine especially relates to a valve sleeve for electronic steering machine. BACKGROUND

[0002] In modern automobile industry, electronic steering machine, scientific name steering gear, as the core component of automobile steering system, plays a pivotal role, facilitates the driver to control steering in the driving process when the driver turns the steering wheel, and this key equipment greatly improves the comfort and safety of driving, and has become an indispensable configuration of various automobiles, and the convenience and stability of the installation of the valve sleeve as an important component of the electronic steering machine have a direct impact on the overall performance of the electronic steering machine.

[0003] However, the common valve sleeve for electronic steering machine on the market has some defects in actual application, when the valve sleeve is installed to the mounting seat, there is lack of a quick installation and fixing assembly, and the traditional installation method often needs to align the valve sleeve and the mounting seat complicatedly, and the installation process is time-consuming and laborious, so that subsequent disassembly is also relatively inconvenient. UTILITY MODEL CONTENTS

[0004] The utility model solves the problem of providing a valve sleeve for electronic steering machine which can quickly install and disassemble the valve body.

[0005] To solve the above technical problems, the utility model adopts the technical scheme of a valve sleeve for electronic steering machine, which comprises a valve body, two clamping assemblies are installed in the interior of the valve body, the two clamping assemblies are symmetrically distributed respectively, the clamping assembly comprises a fixed cylinder, the fixed cylinder is fixedly connected in the interior of the valve body, a clamping slide column is slidably connected in the interior of the fixed cylinder, one end of the clamping slide column is located outside the valve body, the other end of the clamping slide column is located in the interior of the valve body, an inclined surface is formed at one end of the clamping slide column in the interior of the valve body, a limiting plate is fixedly connected to the outer surface of the clamping slide column in the interior of the fixed cylinder, and a reset spring is sleeved on the outer surface of the clamping slide column.

[0006] Preferably, the valve sleeve for electronic steering machine comprises a screw cylinder fixedly connected in the interior of the valve body, a screw post is screwedly connected in the interior of the screw cylinder, one end of the screw post is located in the interior of the valve body, the other end of the screw post is located outside the valve body, a first ball is arranged at one end of the screw post in the interior of the valve body, and the first ball is in abutment with the inclined surface.

[0007] Preferably, the valve sleeve for electronic steering machine comprises a plurality of groups of storage grooves formed in the inner wall of the valve body, the plurality of groups of storage grooves are annularly and equidistantly distributed in the interior of the valve body, and a second ball is arranged in the interior of the storage groove.

[0008] Preferably, in the above-mentioned valve sleeve for an electronic power steering system, the inner wall of the valve body is provided with a total of six oil grooves, the six oil grooves are respectively arranged in a ring at equal intervals inside the valve body, and the inner wall of the valve body is provided with a total of six sets of oil holes, and the six sets of oil holes are respectively located inside the six oil grooves.

[0009] Preferably, in the above-mentioned valve sleeve for an electronic power steering system, the inner wall of the valve body is provided with an annular groove, and the inner wall of the valve body is provided with a plurality of communicating grooves, all of which are connected to the annular groove.

[0010] Preferably, in the above-mentioned valve sleeve for an electronic power steering system, the outer surface of the valve body is provided with three annular grooves, and the three annular grooves are respectively equidistantly provided on the outer surface of the valve body.

[0011] The advantages and beneficial effects of this utility model are:

[0012] I. This utility model, through the cooperation between the valve body and the snap-fit ​​assembly, allows for quick installation of the valve body. Simply align the snap-fit ​​slide pin with the slot of the mounting base, push the valve body into the mounting base, and then turn the stud. The ball bearings then press against the inclined surface of the snap-fit ​​slide pin, causing it to snap into the slot. This quickly completes the installation and fixing of the entire valve sleeve, significantly shortening installation time. When the valve body needs maintenance or replacement, simply turn the stud in the opposite direction. The return spring and limit plate work together to quickly disengage the snap-fit ​​slide pin from the slot, enabling rapid disassembly of the entire valve sleeve. This design, through the snap-fit ​​assembly, allows for rapid installation and disassembly of the valve body, greatly improving installation and disassembly efficiency.

[0013] II. Through the cooperation between the reservoir and the second ball, when the electronic power steering is working, the valve body and the valve core will move relative to each other. The reservoir can store hydraulic oil. When the valve body and the valve core move relative to each other, the second ball in the reservoir begins to roll under the action of friction. The rolling of the second ball can not only carry out the hydraulic oil in the reservoir and coat it on the contact surface of the valve body and the valve core to form a lubricating film, but also the rolling of the second ball itself can reduce the sliding friction between the valve body and the valve core, further improving the lubrication and reducing the coefficient of friction. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0015] Figure 2 This is a three-dimensional structural schematic diagram of the present invention in cross-section;

[0016] Figure 3 This is a three-dimensional structural schematic diagram of the snap-fit ​​assembly of this utility model;

[0017] Figure 4 yesFigure 2 Enlarged structural diagram at point A in the middle.

[0018] In the diagram: 1. Valve body; 2. Snap-fit ​​assembly; 201. Fixed cylinder; 202. Snap-fit ​​slide; 203. Limiting plate; 204. Return spring; 205. Screw; 206. Screw; 207. Ball bearing one; 208. Inclined surface; 3. Storage groove; 4. Ball bearing two; 5. Oil groove; 6. Oil hole; 8. Connecting groove; 9. Annular outer groove. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0020] like Figures 1 to 4 As shown, a valve sleeve for an electronic power steering system includes a valve body 1. Two snap-fit ​​components 2 are installed inside the valve body 1, symmetrically distributed. Each snap-fit ​​component 2 includes a fixed cylinder 201 fixedly connected inside the valve body 1. A snap-fit ​​slide rod 202 is slidably connected inside the fixed cylinder 201. One end of the snap-fit ​​slide rod 202 is located outside the valve body 1, and the other end is located inside the valve body 1. An inclined surface 208 is provided at the end of the snap-fit ​​slide rod 202 inside the valve body 1. A limit plate 203 is fixedly connected to the outer surface of the snap-fit ​​slide rod 202 inside the fixed cylinder 201. A return spring 204 is sleeved on the outer surface of the snap-fit ​​slide rod 202.

[0021] Two snap-fit ​​components 2 are symmetrically installed inside the valve body 1. This symmetrical distribution design ensures the stability of the valve body 1 when it is installed on the mounting base. The fixing cylinder 201 in the snap-fit ​​component 2 is fixedly connected inside the valve body 1. Its function is to provide installation space for the snap-fit ​​slide column 202. The snap-fit ​​slide column 202 can slide smoothly inside the fixing cylinder 201. One end of it extends out of the outside of the valve body 1 to mate with the slot on the mounting base. The other end is located inside the valve body 1, and a bevel 208 is specially provided at the end located inside the valve body 1. The outer surface of the snap-fit ​​slide column 202 inside the fixing cylinder 201 is fixedly connected to the limiting plate 203. At the same time, a return spring 204 is sleeved on the outer surface of the snap-fit ​​slide column 202.

[0022] A screw cylinder 205 is fixedly connected inside the valve body 1. A stud 206 is threaded inside the screw cylinder 205. One end of the stud 206 is located inside the valve body 1, and the other end of the stud 206 is located outside the valve body 1. A ball bearing 207 is installed at the end of the stud 206 inside the valve body 1. The ball bearing 207 is in contact with the inclined surface 208.

[0023] When installing the valve body 1, first align the end of the locking slide 202 located on the outside of the valve body 1 with the slot in the mounting seat, then push the valve body 1 into the mounting seat. By turning the stud 206, since the stud 206 and the screw barrel 205 are threadedly connected, according to the principle of thread transmission, the stud 206 will move into the valve body 1 along the axial direction of the screw barrel 205. As the stud 206 moves, the ball bearing 207 installed at its end also moves and squeezes the inclined surface 208 of the locking slide 202. The presence of ball bearing 207 transmits the extrusion force of stud 206 to inclined surface 208 through rolling friction. Compared to direct extrusion, this greatly reduces friction and makes the transmission of extrusion force smoother and more efficient. Under the extrusion force, the locking slide 206 overcomes the elastic force of return spring 204 and slides into the slot of the mounting seat until it is locked in the slot of the mounting seat, thus completing the locking operation. During disassembly, the stud 206 is rotated in the opposite direction to move it outward along the screw barrel 205. Ball bearing 207 gradually releases the extrusion force on inclined surface 208, creating conditions for the locking slide 202 to pop outward under the action of return spring 204. Under the action of return spring 204 and limit plate 203, the locking slide 202 will disengage from the slot of the mounting seat, thereby achieving quick disassembly of the valve sleeve.

[0024] The inner wall of the valve body 1 has multiple sets of storage grooves 3, which are distributed in a ring at equal intervals inside the valve body 1. The storage grooves 3 are equipped with ball bearings 4.

[0025] When the electronic power steering is working, the reservoir 3 can store hydraulic oil. When the valve body 1 and the valve core move relative to each other, friction is generated between the surface of the valve core and the second ball 4, driving the second ball 4 to roll. During the rolling process, the second ball 4 can carry out the hydraulic oil in the reservoir 3 and coat it on the contact surface between the valve body 1 and the valve core, forming a thin lubricating film, which reduces friction. At the same time, the rolling friction coefficient of the second ball 4 itself is much smaller than the sliding friction coefficient between the valve body 1 and the valve core. During the relative movement of the two, the rolling friction further reduces the overall friction and improves the lubrication effect.

[0026] The inner wall of the valve body 1 has six oil grooves 5, which are arranged in a ring at equal intervals inside the valve body 1. The inner wall of the valve body 1 has six sets of oil holes 6, which are located inside the six oil grooves 5.

[0027] When the electronic steering system is working, the hydraulic oil in the external oil circuit can enter the oil groove 5 through the oil hole 6. The oil groove 5 mainly plays the role of distributing and guiding the hydraulic oil. Its annular and equidistant distribution design can ensure that the hydraulic oil is evenly distributed around the inner wall of the valve body 1, providing stable hydraulic support for the normal operation of the electronic steering system and ensuring the smoothness and accuracy of steering operation.

[0028] The inner wall of the valve body 1 is provided with an annular groove 7, and the inner wall of the valve body 1 is provided with a plurality of connecting grooves 8, all of which are connected to the annular groove 7.

[0029] When hydraulic oil flows inside valve body 1, some hydraulic oil can enter annular groove 7 through connecting groove 8. Annular groove 7 is equivalent to a small hydraulic oil buffer, which can store a certain amount of hydraulic oil. Connecting groove 8 increases the flexibility and interconnectivity of hydraulic oil flow inside valve body 1, which helps to maintain the stability of hydraulic oil pressure inside valve body 1.

[0030] The outer surface of the valve body 1 has three annular grooves 9, which are equidistantly spaced on the outer surface of the valve body 1.

[0031] Three annular grooves 9, equidistantly spaced on the outer surface of the valve body 1, are distributed around the outer surface of the valve body 1 and play a role in the connection between the valve body 1 and other components of the electronic steering gear and in the control of hydraulic oil flow.

[0032] Working principle: Aligning the snap-fit ​​slide pin 202 of the snap-fit ​​assembly 2 on the valve body 1 with the slot on the mounting seat achieves quick alignment and positioning of the valve body 1 and the mounting seat. The snap-fit ​​slide pin 202 and the slot correspond to each other. After pushing the valve body 1 into the mounting seat, the snap-fit ​​slide pin 202 automatically aligns with the slot. Then, by turning the stud 206, which is threaded to the screw barrel 205, the stud 206 drives the ball bearing 207 to move inward within the screw barrel 205. The ball bearing 207 compresses the inclined surface 208 of the snap-fit ​​slide pin 202, causing it to move into the slot. The limiting plate 203 compresses the return spring 204 until it snaps into the slot within the mounting seat, thus completing the quick installation and fixing of the entire valve sleeve and mounting seat. To disassemble, turn the stud 206 in the opposite direction. As the stud 206 moves outward, the squeezing force of the first ball 207 on the inclined surface 208 of the locking slide 202 gradually decreases. At this time, under the action of the return spring 204 and the limit plate 203, the locking slide 202 will disengage from the slot in the mounting seat, thereby realizing the quick disassembly of the valve sleeve. When the electronic steering gear is working, the storage groove 3 opened on the inner wall of the valve body 1 can store the flowing hydraulic oil. When the valve body 1 and the valve core move relative to each other, the second ball 4 in the storage groove 3 begins to roll under the action of friction. The rolling of the second ball 4 can not only carry out the hydraulic oil in the storage groove 3 and coat it on the contact surface of the valve body 1 and the valve core to form a lubricating film, but the rolling of the second ball 4 itself can also reduce the sliding friction between the valve body 1 and the valve core, further improving the lubrication.

[0033] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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 a specific orientational structure and operation. Therefore, they should not be construed as limitations on this utility model. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0034] It should be noted that all standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, which will not be described in detail here.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A valve sleeve for an electronic power steering system, characterized in that: The device includes a valve body (1), and two snap-fit ​​components (2) are installed inside the valve body (1). The two snap-fit ​​components (2) are symmetrically distributed. Each snap-fit ​​component (2) includes a fixed cylinder (201), which is fixedly connected to the inside of the valve body (1). A snap-fit ​​slide column (202) is slidably connected inside the fixed cylinder (201). One end of the snap-fit ​​slide column (202) is located outside the valve body (1), and the other end of the snap-fit ​​slide column (202) is located inside the valve body (1). An inclined surface (208) is provided at the end of the snap-fit ​​slide column (202) inside the valve body (1). A limit plate (203) is fixedly connected to the outer surface of the snap-fit ​​slide column (202) inside the fixed cylinder (201). A return spring (204) is sleeved on the outer surface of the snap-fit ​​slide column (202).

2. The valve sleeve for an electronic power steering system according to claim 1, characterized in that: A screw cylinder (205) is fixedly connected inside the valve body (1). A stud (206) is threaded inside the screw cylinder (205). One end of the stud (206) is located inside the valve body (1), and the other end of the stud (206) is located outside the valve body (1). A ball bearing (207) is installed at the end of the stud (206) inside the valve body (1). The ball bearing (207) is in contact with the inclined surface (208).

3. The valve sleeve for an electronic power steering system according to claim 1, characterized in that: The valve body (1) has multiple sets of storage grooves (3) on its inner wall. The multiple sets of storage grooves (3) are distributed in a ring at equal intervals inside the valve body (1). The storage grooves (3) are provided with ball bearings (4).

4. The valve sleeve for an electronic power steering system according to claim 1, characterized in that: The inner wall of the valve body (1) is provided with a total of six oil grooves (5), and the six oil grooves (5) are respectively arranged in a ring at equal intervals inside the valve body (1). The inner wall of the valve body (1) is provided with a total of six sets of oil holes (6), and the six sets of oil holes (6) are respectively located inside the six oil grooves (5).

5. A valve sleeve for an electronic power steering system according to claim 1, characterized in that: The inner wall of the valve body (1) is provided with an annular groove (7), and the inner wall of the valve body (1) is provided with a plurality of connecting grooves (8), and the plurality of connecting grooves (8) are connected to the annular groove (7).

6. The valve sleeve for an electronic power steering system according to claim 1, characterized in that: The outer surface of the valve body (1) is provided with three annular outer grooves (9), which are equidistantly located on the outer surface of the valve body (1).

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