Oil cylinder assembly, suspension system and vehicle

Abstract

The utility model provides an oil cylinder assembly, a suspension system and a vehicle, the oil cylinder assembly is used for the vehicle suspension system, the oil cylinder assembly comprises an oil cylinder body, a first connecting rod, a connecting base, a first screw and a second screw, a first connecting hole is formed in a first end connector of the oil cylinder body, the first connecting rod penetrates through the first connecting hole, and the two ends of the first connecting rod extend out relative to the first connecting hole; a first threaded hole and a second threaded hole are formed in the extending part, a third threaded hole and a fourth threaded hole are formed in the positions, on the two sides of the first connecting hole, of the connecting base, and the first screw penetrates through the first threaded hole and the third threaded hole and is in threaded connection with the first threaded hole and the third threaded hole; the second screw rod is arranged in the second threaded hole and the fourth threaded hole in a penetrating manner and is in threaded connection with the second threaded hole and the fourth threaded hole; the connecting seat is provided with at least three fifth threaded holes in threaded connection with a vehicle body of the vehicle, and the problem that in the prior art, the strength is insufficient, and large loads are difficult to bear can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic cylinders, and in particular to an oil cylinder component, a suspension system and a vehicle. Background Art

[0002] In the off-road vehicle suspension system, the body and the control arm are connected by a cylinder, so that the force exerted by the ground on the wheel can be transmitted to the body. In the prior art, the cylinder mounting bracket is generally manufactured by stamping and welding. When the vehicle has a large curb weight, the strength of the cylinder mounting bracket manufactured by stamping and welding is often insufficient and it is difficult to withstand a large load. Utility Model Content

[0003] The purpose of the embodiments of the present application is to provide a cylinder assembly, a suspension system and a vehicle, which can solve the problem of insufficient strength in the prior art and inability to withstand large loads.

[0004] In order to solve the above technical problems, this application is implemented as follows:

[0005] In a first aspect, an embodiment of the present application provides a cylinder assembly, which is applied to a suspension system of a vehicle, wherein the cylinder assembly comprises a cylinder body, a first connecting rod, a connecting seat, a first screw and a second screw, wherein a connecting head is provided at a first end of the cylinder body, wherein a first connecting hole is provided at the connecting head, wherein the first connecting rod passes through the first connecting hole, and two ends of the first connecting rod extend out from the first connecting hole respectively, wherein a first threaded hole and a second threaded hole are provided at a portion of the first connecting rod extending out from the first connecting hole, wherein the first threaded hole and the second threaded hole are located at two sides of the first connecting hole, and an axis of the first threaded hole is parallel to an axis of the second threaded hole;

[0006] The connecting seat is provided with a third threaded hole and a fourth threaded hole, the axis of the third threaded hole coincides with the axis of the first threaded hole, and the aperture of the third threaded hole is the same as the aperture of the first threaded hole, and the aperture of the fourth threaded hole is the same as the aperture of the second threaded hole, the first screw rod is respectively inserted into the first threaded hole and the third threaded hole, and the first screw rod is respectively threadedly connected to the first threaded hole and the third threaded hole; the second screw rod is respectively inserted into the second threaded hole and the fourth threaded hole, and the second screw rod is respectively threadedly connected to the second threaded hole and the fourth threaded hole;

[0007] The connecting seat is also provided with at least three fifth threaded holes for threaded connection with the body of the vehicle, and the axes of the fifth threaded holes are parallel to the axes of the third threaded holes.

[0008] In a second aspect, an embodiment of the present application provides a suspension system, comprising the cylinder assembly described in the first aspect.

[0009] In a third aspect, an embodiment of the application provides a vehicle, comprising the suspension system described in the second aspect above.

[0010] In the embodiment of the present application, in the suspension system, the vehicle body and the control arm are connected by the cylinder body, the lower end of the cylinder body is connected to the control arm, and the upper end is connected to the vehicle body bottom plate through a connecting seat, the first end of the cylinder body is provided with a connecting head, the connecting head is provided with a first connecting hole, the first connecting rod passes through the first connecting hole, the two ends of the first connecting rod extend respectively relative to the first connecting hole, the extended part is provided with a first threaded hole and a second threaded hole, and the first threaded hole and the second threaded hole are on both sides of the first connecting hole, the connecting seat is provided with a third threaded hole and a fourth threaded hole, the aperture of the third threaded hole is the same as the aperture of the first threaded hole, and the fourth threaded hole is provided The aperture of the threaded hole is the same as the aperture of the second threaded hole. The first screw rod is respectively inserted into the first threaded hole and the third threaded hole, and the first screw rod is threadedly connected to the first threaded hole and the third threaded hole respectively; the second screw rod is respectively inserted into the second threaded hole and the fourth threaded hole, and the second screw rod is threadedly connected to the second threaded hole and the fourth threaded hole respectively; the screw rod is directly threaded on the connecting seat, and bolts and nuts are no longer used for connection, thereby reducing the number of parts of the suspension system. The connecting seat is also provided with at least three fifth threaded holes for connecting to the bottom plate of the vehicle body. Through such an arrangement, it can withstand a sufficiently large load and have sufficient strength and service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings required for describing the embodiment of the utility model are briefly introduced below.

[0012] Figure 1 A schematic diagram of the structure of a connecting seat in a cylinder assembly provided in an embodiment of the present application Figure 1 ;

[0013] Figure 2 A schematic diagram of the structure of a connecting seat in a cylinder assembly provided in an embodiment of the present application Figure 2 ;

[0014] Figure 3 A schematic diagram of the structure of a suspension system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0016] The terms "first", "second", etc. in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of the same type, and the number of objects is not limited. For example, the first object can be one or more.

[0017] The present application provides a cylinder assembly, a suspension system and a vehicle. Figure 1 , Figure 2 and Figure 3 , a suspension system applied to a vehicle, comprising a cylinder body 2, a first connecting rod 6, a connecting seat 3, a first screw and a second screw, a first end of the cylinder body 2 is provided with a connecting head 5, the connecting head 5 is provided with a first connecting hole, the first connecting rod 6 is arranged through the first connecting hole, and the two ends of the first connecting rod 6 are respectively extended relative to the first connecting hole, a first threaded hole 6-1 and a second threaded hole 6-2 are provided at a portion of the first connecting rod 6 extending relative to the first connecting hole, and the first threaded hole 6-1 and the second threaded hole 6-2 are located on both sides of the first connecting hole, and the axis of the first threaded hole 6-1 is parallel to the axis of the second threaded hole 6-2;

[0018] The connecting seat 3 is provided with a third threaded hole 3-1 and a fourth threaded hole 3-2, the third threaded hole 3-1 coincides with the axis of the first threaded hole 6-1, and the aperture of the third threaded hole 3-1 is the same as the aperture of the first threaded hole 6-1, and the aperture of the fourth threaded hole 3-2 is the same as the aperture of the second threaded hole 6-2, the first screw rod is respectively penetrated into the first threaded hole 6-1 and the third threaded hole 3-1, and the first screw rod is respectively threadedly connected with the first threaded hole 6-1 and the third threaded hole 3-1; the second screw rod is respectively penetrated into the second threaded hole 6-2 and the fourth threaded hole 3-2, and the second screw rod is respectively threadedly connected with the second threaded hole 6-2 and the fourth threaded hole 3-2;

[0019] The connecting seat 3 is further provided with at least three fifth threaded holes 3 - 3 for threaded connection with the body of the vehicle, and the axes of the fifth threaded holes 3 - 3 are parallel to the axes of the third threaded holes 3 - 1 .

[0020] In this embodiment, the cylinder assembly is used in a large off-road vehicle suspension system, which adopts a hydraulic suspension system. The suspension system connects the vehicle body and the control arm 1 through a cylinder body 2, so that the force exerted by the ground on the wheel can be transmitted to the vehicle body. Two internal threaded connecting holes are provided on the control arm 1, and a connecting hole is provided at the second end of the cylinder body 2. A connecting rod passes through the connecting hole, and the connecting rod extends out from both sides of the connecting hole. The extended part is provided with a hole position corresponding to the internal threaded hole on the control arm 1, and is threadedly connected by a screw. A connecting head 5 is provided at the first end of the cylinder body 2, and the connecting head 5 is provided with a first connecting hole. A first connecting rod 6 passes through the first connecting hole, and both ends of the first connecting rod 6 extend out from the first connecting hole respectively, and the extended part is provided with a first threaded hole 6-1 and a second threaded hole 6-2. The first threaded hole 6-1 and the second threaded hole 6-2 are located on both sides of the first connecting hole, and the connecting seat 3 is provided with a third threaded hole. The first threaded hole 3-1 and the fourth threaded hole 3-2, the first screw is respectively penetrated into the first threaded hole 6-1 and the third threaded hole 3-1, and the first screw is respectively threadedly connected to the first threaded hole 6-1 and the third threaded hole 3-1; the second screw is respectively penetrated into the second threaded hole 6-2 and the fourth threaded hole 3-2, and the second screw is respectively threadedly connected to the second threaded hole 6-2 and the fourth threaded hole 3-2; the connecting seat 3 is also provided with at least three fifth threaded holes 3-3 for threaded connection with the body of the body bottom plate 4, wherein the axis of the first threaded hole 6-1 is parallel to the axis of the second threaded hole 6-2, the axis of the third threaded hole 3-1 coincides with the axis of the first threaded hole 6-1, the aperture of the third threaded hole 3-1 is the same as the aperture of the first threaded hole 6-1, the aperture of the fourth threaded hole 3-2 is the same as the aperture of the second threaded hole 6-2, and the axis of the fifth threaded hole 3-3 is parallel to the axis of the third threaded hole 3-1.

[0021] It should be noted that the cylinder body 2 includes components such as a cylinder body, a telescopic rod, and a piston. The first end of the cylinder body 2 is a closed end of the cylinder body, and a connecting seat is arranged at the closed end of the cylinder body. When pressure is applied to the telescopic rod, hydraulic oil enters the hydraulic cylinder, and the pressure causes the piston to move in the hydraulic cylinder. The sealing element inside the hydraulic cylinder ensures that the hydraulic oil will not leak; the movement of the piston will be transmitted to the telescopic rod through the connecting piece. The telescopic rod is composed of multiple sections, and each section can be extended and retracted relative to the previous section; by controlling the inflow and outflow of hydraulic oil, the extension speed and extension degree of the telescopic rod can be controlled.

[0022] By adopting mechanical processing technology for the cylinder assembly and its mounting structure with the cylinder, the cylinder assembly is directly processed by mechanical processing technology using an aluminum alloy block, can withstand a sufficiently large load and has sufficient strength and service life, and its weight will also be reduced; the connection position between the cylinder assembly and the cylinder is processed into a threaded hole, and the bolts are directly screwed on the bracket, and bolts and nuts are no longer used for connection, thereby reducing the number of parts of the suspension system.

[0023] Optionally, the first end surface of the connecting seat is provided with a first protrusion and a second protrusion, the first protrusion is a protrusion distributed along a first edge of the first end surface, the second protrusion is a protrusion distributed along a second edge of the first end surface, and the first edge and the second edge are two opposite edges of the first end surface; the third threaded hole is opened in the first protrusion, and the fourth threaded hole is opened in the second protrusion;

[0024] An avoidance hole is formed in the connection seat, at least a portion of the connection head is located in the avoidance hole, and the connection head is located between the first protrusion and the second protrusion.

[0025] Please refer to Figure 1 The first end face 3-4 of the connecting seat 3 is provided with a first protrusion 3-5 and a second protrusion 3-6, the first protrusion 3-5 is a protrusion distributed along the first edge 3-5-1 of the first end face 3-4, the second protrusion 3-6 is a protrusion distributed along the second edge 3-6-1 of the first end face 3-4, the first edge 3-5-1 and the second edge 3-6-1 are two opposite edges of the first end face 3-4; the third threaded hole 3-1 is opened in the first protrusion 3-5, and the fourth threaded hole 3-2 is opened in the second protrusion 3-6; an avoidance hole 7 is opened in the connecting seat 3, at least part of the connecting head 5 is located in the avoidance hole 7, and the connecting head 5 is located between the first protrusion 3-5 and the second protrusion 3-6.

[0026] In this embodiment, the first end face 3-4 of the connecting seat 3 is provided with a first protrusion 3-5 and a second protrusion 3-6, the first protrusion 3-5 is along the first edge 3-5-1 of the first end face 3-4, and the second protrusion 3-6 is along the second edge 3-6-1 of the first end face 3-4, the third threaded hole 3-1 is opened in the first protrusion 3-5, the fourth threaded hole 3-2 is opened in the second protrusion 3-6, and an avoidance hole 7 is also opened in the connecting seat 3. The purpose of the avoidance hole is to provide space for the first end of the cylinder body 2, that is, the connecting seat 3. Through such an arrangement, the cylinder assembly and the cylinder connection position are designed and processed into threaded holes, and the bolts are directly screwed on the bracket, and bolts and nuts are no longer used for connection, thereby reducing the number of parts of the suspension system.

[0027] Optionally, the second end face of the connecting seat is provided with a first groove and a second groove, the first end face and the second end face are two opposite end faces of the connecting seat, the first groove is opposite to the first protrusion, and the second groove is opposite to the second protrusion.

[0028] Please refer to Figure 1 and Figure 2 The second end face 10 of the connecting seat 3 is provided with a first groove 8 and a second groove 9. The first end face 3-4 and the second end face 10 are two opposite end faces of the connecting seat 3. The first groove 8 is opposite to the first protrusion 3-5, and the second groove 9 is opposite to the second protrusion 3-6.

[0029] In this embodiment, the first groove 8 and the second groove 9 are provided on the second end surface 10 of the connecting seat 3, and the steel is replaced by a lightweight material, and the aluminum alloy block is processed by a mechanical processing method. Because the whole block is processed by a mechanical processing method, and a high-grade aluminum alloy matrix is ​​selected, the structural strength of the oil cylinder mounting bracket is higher; under the premise of ensuring the overall strength of the oil cylinder assembly, the oil cylinder assembly is designed to reduce weight, and the weight of the parts is further reduced.

[0030] Optionally, the first protrusion is provided with two fifth threaded holes, and the two threaded holes in the first protrusion are located on both sides of the third threaded hole;

[0031] The second protrusion is provided with two fifth threaded holes, and the two threaded holes in the second protrusion are located at two sides of the fourth threaded hole.

[0032] Please refer to Figure 1 and Figure 2 The first protrusion 3-5 and the second protrusion 3-6 are respectively provided with two fifth threaded holes 3-3. The two threaded holes in the first protrusion 3-5 are located on both sides of the third threaded hole 3-1; the two threaded holes in the second protrusion 3-6 are located on both sides of the fourth threaded hole 3-2.

[0033] In this embodiment, by configuring in this way, the body screw connection with the body bottom plate 4 can bear a larger load.

[0034] Optionally, one end of the third threaded hole is located at the bottom of the first groove, and the first protrusion is provided with two fifth threaded holes located at two sides of the first groove.

[0035] Please refer to Figure 1 and Figure 2 One end of the third threaded hole 3 - 1 is located at the bottom of the first groove 8 , and the first protrusion 3 - 5 is provided with two fifth threaded holes 3 - 3 located on both sides of the first groove 8 .

[0036] In this embodiment, by opening a third threaded hole 3-1 in the first groove 8, the first protrusion 3-5 opens two fifth threaded holes 3-3 located on both sides of the first groove 8, and the bolts are directly screwed to the bracket without using nuts, thereby reducing the number of parts of the suspension system.

[0037] Optionally, one end of the fourth threaded hole is located at the bottom of the second groove, and the second protrusion is provided with two fifth threaded holes located at two sides of the second groove.

[0038] Please refer to Figure 1 and Figure 2 One end of the fourth threaded hole 3 - 2 is located at the bottom of the second groove 9 , and the second protrusion 3 - 6 is provided with two fifth threaded holes 3 - 3 located on both sides of the second groove 9 .

[0039] In this embodiment, by opening a fourth threaded hole 3-2 in the second groove 9, the second protrusion 3-6 opens two fifth threaded holes 3-3 located on both sides of the second groove 9, and the bolts are directly screwed to the bracket without using nuts, thereby reducing the number of parts of the suspension system.

[0040] Optionally, the thickness of the connecting seat at the first protrusion and the second protrusion is respectively greater than 30 mm, and the thickness direction of the connecting seat is perpendicular to the first end face.

[0041] Please refer to Figure 1 and Figure 2 The thickness of the connecting seat 3 at the first protrusion 3-5 and the second protrusion 3-6 is greater than 30 mm, and the thickness direction of the connecting seat 3 is perpendicular to the first end surface 3-4.

[0042] In this embodiment, the thickness of the connecting seat 3 at the first protrusion 3-5 and the second protrusion 3-6 is greater than 30 mm respectively. Under the premise of ensuring the overall strength of the bracket, the cylinder assembly is designed to reduce weight to further reduce the weight of the parts.

[0043] Optionally, a thickness dimension of the connection seat in other areas except the first protrusion and the second protrusion is greater than 10 mm.

[0044] Please refer to Figure 1 and Figure 2 The thickness of the connecting seat 3 in other areas except the first protrusion 3-5 and the second protrusion 3-6 is greater than 10 mm.

[0045] In this embodiment, by setting the thickness of other areas except the first protrusion 3-5 and the second protrusion 3-6 to be greater than 10 mm, the cylinder assembly is designed to be lightweight while ensuring the overall strength of the bracket, thereby further reducing the weight of the parts.

[0046] An embodiment of the present application also includes a suspension system, including a control arm, a vehicle body floor and the cylinder assembly described in the above embodiment, wherein the connecting seat is fixedly connected to the vehicle body floor through the at least three fifth threaded holes, and the second end of the cylinder body is fixedly connected to the control arm.

[0047] The suspension system provided in the embodiment of the present application adopts the cylinder assembly described in the above embodiment, and therefore can achieve all the beneficial effects that can be achieved by the cylinder assembly in the above embodiment. To avoid repetition, they will not be described again here.

[0048] An embodiment of the present application also includes a vehicle, comprising the suspension system described in the above embodiment.

[0049] The vehicle provided in the embodiment of the present application adopts the suspension system described in the above embodiment, and therefore can achieve all the beneficial effects that can be achieved by the suspension system in the above embodiment. To avoid repetition, they will not be described again here.

[0050] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A cylinder assembly, applied to a vehicle suspension system, characterized in that: The oil cylinder assembly comprises an oil cylinder body, a first connecting rod, a connecting seat, a first screw and a second screw. A connecting head is provided at the first end of the oil cylinder body, and a first connecting hole is provided at the connecting head. The first connecting rod is arranged through the first connecting hole, and two ends of the first connecting rod extend out from the first connecting hole respectively. A first threaded hole and a second threaded hole are provided at a portion of the first connecting rod extending out from the first connecting hole, and the first threaded hole and the second threaded hole are located on both sides of the first connecting hole, and an axis of the first threaded hole is parallel to an axis of the second threaded hole. The connecting seat is provided with a third threaded hole and a fourth threaded hole, the axis of the third threaded hole coincides with the axis of the first threaded hole, and the aperture of the third threaded hole is the same as the aperture of the first threaded hole, and the aperture of the fourth threaded hole is the same as the aperture of the second threaded hole, the first screw rod is respectively inserted into the first threaded hole and the third threaded hole, and the first screw rod is respectively threadedly connected to the first threaded hole and the third threaded hole; the second screw rod is respectively inserted into the second threaded hole and the fourth threaded hole, and the second screw rod is respectively threadedly connected to the second threaded hole and the fourth threaded hole; The connecting seat is also provided with at least three fifth threaded holes for threaded connection with the body of the vehicle, and the axes of the fifth threaded holes are parallel to the axes of the third threaded holes.

2. The oil cylinder assembly according to claim 1, characterized in that: The first end surface of the connecting seat is provided with a first protrusion and a second protrusion, the first protrusion is a protrusion distributed along the first edge of the first end surface, the second protrusion is a protrusion distributed along the second edge of the first end surface, the first edge and the second edge are two opposite edges of the first end surface; the third threaded hole is opened in the first protrusion, and the fourth threaded hole is opened in the second protrusion; An avoidance hole is formed in the connection seat, at least a portion of the connection head is located in the avoidance hole, and the connection head is located between the first protrusion and the second protrusion.

3. The oil cylinder assembly according to claim 2, characterized in that: The second end surface of the connection seat is provided with a first groove and a second groove, the first end surface and the second end surface are two opposite end surfaces of the connection seat, the first groove is opposite to the first protrusion, and the second groove is opposite to the second protrusion.

4. The oil cylinder assembly according to claim 3, characterized in that: The first protrusion is provided with two fifth threaded holes, and the two threaded holes in the first protrusion are located on both sides of the third threaded hole; The second protrusion is provided with two fifth threaded holes, and the two threaded holes in the second protrusion are located at two sides of the fourth threaded hole.

5. The oil cylinder assembly according to claim 4, characterized in that: One end of the third threaded hole is located at the bottom of the first groove, and the first protrusion is provided with two fifth threaded holes located at two sides of the first groove.

6. The oil cylinder assembly according to claim 4, characterized in that: One end of the fourth threaded hole is located at the bottom of the second groove, and the second protrusion is provided with two fifth threaded holes located at two sides of the second groove.

7. The oil cylinder assembly according to claim 2, characterized in that: The thickness of the connection seat at the first protrusion and the second protrusion is respectively greater than 30 mm, and the thickness direction of the connection seat is perpendicular to the first end surface.

8. The oil cylinder assembly according to claim 7, characterized in that: The thickness of the connection base in other areas except the first protrusion and the second protrusion is greater than 10 mm.

9. A suspension system, characterized in that: It comprises a control arm, a vehicle body floor and the cylinder assembly as described in any one of claims 1 to 8, wherein the connecting seat is fixedly connected to the vehicle body floor through the at least three fifth threaded holes, and the second end of the cylinder body is fixedly connected to the control arm.

10. A vehicle, characterized in that: Comprising the suspension system of claim 9.

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