Automobile suspension torsion bar spring

Abstract

The utility model relates to the technical field of automobile engineering, and discloses an automobile suspension torsion bar spring which comprises a fixing sleeve, the inner diameter of the fixing sleeve is rotationally connected with a threaded rod, the surface of the threaded rod is in threaded connection with two moving blocks, and the left sides and the right sides of the two moving blocks are rotationally connected with connecting rods. A fixing block is rotationally connected between every two vertically adjacent connecting rods, spring rods are fixedly connected to the opposite sides of the two fixing blocks, outer splines are fixedly connected to the two ends of the two spring rods, fixing pieces are fixedly connected to the opposite ends of the two spring rods, and inner splines are fixedly connected to the fixing pieces and the inner diameter of the fixing sleeve. The rotary knob is rotated to drive the threaded rod at the bottom to rotate, threads of the upper portion and the lower portion of the threaded rod are opposite, the threaded rod rotates to drive the two movable blocks to move, and therefore the fixed block is pulled to move, the fixed block drives the two spring rods to move, and the distance between the spring rods is adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile engineering, in particular to an automobile suspension torsion bar spring. Background Art

[0002] The automobile suspension system plays a vital role in the vehicle's driving performance, handling stability and ride comfort. Among the many complex and critical suspension components, torsion bar springs are a common and important elastic element. Due to their compact structure, they can achieve efficient layout in a limited space, minimizing the space occupied by the vehicle. Their relatively light weight helps to reduce the overall weight of the vehicle, enabling them to flexibly adapt to the design requirements of different models and suspension systems. Torsion bar springs can provide a large range of elastic deformation. When dealing with various degrees of impact and vibration encountered by the vehicle during driving, they have excellent cushioning and energy absorption capabilities, thereby effectively reducing the bumps and shakes of the vehicle body, bringing a smoother and more comfortable driving experience to the driver and passengers.

[0003] Traditional torsion bar springs usually have a fixed length and have certain limitations when facing complex and changing road conditions and different driving requirements. Since they cannot be adjusted, they cannot accurately tune the suspension for specific models or specific performance requirements, which limits the optimization of the vehicle's overall performance. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides an automobile suspension torsion bar spring, aiming to improve the problem that the length of the existing torsion bar spring cannot be adjusted and thus cannot adapt to different needs.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a torsion bar spring for automobile suspension, comprising a fixing sleeve, the inner diameter of the fixing sleeve being rotatably connected to a threaded rod, the surface of the threaded rod being threadedly connected to two moving blocks, the left and right sides of the two moving blocks are rotatably connected to connecting rods, the two upper and lower adjacent connecting rods are rotatably connected to a fixing block, the opposite sides of the two fixing blocks are fixedly connected to a spring rod, both ends of the two spring rods are fixedly connected to external splines, the opposite ends of the two spring rods are fixed with fixing parts, the fixing part and the inner diameter of the fixing sleeve are fixedly connected to internal splines, the internal splines are slidably connected to the adjacent external splines, and the surfaces of the two fixing parts are provided with connecting components, and the connecting components are used for quick connection.

[0006] Preferably, the connecting assembly includes a first spring, which is fixedly connected to the fixing member, a movable ring is slidably connected to the surface of the fixing member, the right end of the movable ring is fixedly connected to the first spring, and two sliding grooves are provided on the inner diameter of the movable ring.

[0007] Preferably, a slider is slidably connected in each of the two sliding grooves, and a limiting block is fixedly connected between the two sliders.

[0008] Preferably, the bottom of the limiting block passes through and extends to the inner diameter of the fixing member, and the limiting block is slidably connected to the fixing member.

[0009] Preferably, limiting grooves are provided on the tops of opposite sides of the spring rods.

[0010] Preferably, opposite sides of the two fixing members are fixedly connected with connecting members, and two screw holes are provided on the front sides of the two connecting members.

[0011] Preferably, a knob is fixedly connected to the top end of the threaded rod.

[0012] Preferably, the top of the knob passes through and extends to the top of the fixing sleeve, and the knob and the fixing sleeve are rotatably connected.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, the threaded rod at the bottom is rotated by turning the knob. The threads of the upper and lower parts of the threaded rod are opposite to each other. The rotation of the threaded rod drives the two movable blocks to move, thereby pulling the fixed block to move. The fixed block drives the two spring rods to move, thereby adjusting the spacing of the spring rods, thereby extending and shortening them, solving the problem that the length of the existing torsion bar spring cannot be adjusted and cannot adapt to different needs.

[0015] 2. In the utility model, the sliding ring squeezes the first spring, so that the slider slides in the slide groove, thereby driving the limit block to slide up and down in the fixing part. The limit block is inserted into the limit groove for fixation, thereby achieving the effect of rapid installation and disassembly of the spring rod by the sliding ring, solving the problem of excessively long working hours for disassembly and installation of the existing spring rod during disassembly and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional diagram of an automobile suspension torsion bar spring proposed by the utility model;

[0017] Figure 2 This is a cross-sectional schematic diagram of a fixing sleeve of a torsion bar spring for automobile suspension proposed by the utility model;

[0018] Figure 3 The utility model is a cross-sectional schematic diagram of a fixing part of a torsion bar spring for automobile suspension.

[0019] Legend:

[0020] 1. Fixed sleeve; 2. Spring rod; 3. External spline; 4. Internal spline; 5. Knob; 6. Moving ring; 7. Fixing piece; 8. Connecting piece; 9. Screw hole; 10. Limiting groove; 11. Fixed block; 12. Connecting rod; 13. Moving block; 14. Threaded rod; 15. First spring; 16. Limiting block; 17. Slide groove; 18. Slider. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings of the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Reference Figure 1-Figure 3 , the utility model provides an embodiment: a car suspension torsion bar spring, including a fixing sleeve 1, the inner diameter of the fixing sleeve 1 is rotatably connected to a threaded rod 14, the surface of the threaded rod 14 is threadedly connected to two moving blocks 13, the left and right sides of the two moving blocks 13 are rotatably connected to a connecting rod 12, and a fixing block 11 is rotatably connected between two upper and lower adjacent connecting rods 12, and the opposite sides of the two fixing blocks 11 are fixedly connected to a spring rod 2, both ends of the two spring rods 2 are fixedly connected to an external spline 3, and the opposite ends of the two spring rods 2 are fixed with a fixing piece 7, the fixing piece 7 and the inner diameter of the fixing sleeve 1 are fixedly connected to an internal spline 4, the internal spline 4 is slidably connected to the adjacent external spline 3, and a connecting component is provided on the surface of the two fixing pieces 7, and the connecting component is used for quick connection.

[0023] Specifically, by turning the knob 5, the threaded rod 14 at the bottom is driven to rotate. The threads of the upper and lower parts of the threaded rod 14 are opposite. The rotation of the threaded rod 14 drives the two moving blocks 13 to move relative to each other. The two moving blocks 13 move and pull the connecting rods 12 on both sides, thereby pulling the fixed block 11 to move. The fixed block 11 drives the two spring rods 2 to move, thereby adjusting the spacing between the spring rods. The sliding connection between the internal spline 4 and the external spline 3 ensures that the torque can be accurately and stably transmitted between the torsion bar spring and the connected components when the length is adjusted, avoiding slipping or torque loss, thereby ensuring the normal operation of the suspension system.

[0024] Reference Figure 3 The connecting component includes a first spring 15, which is fixedly connected to the fixing member 7. A movable ring 6 is slidably connected to the surface of the fixing member 7. The right end of the movable ring 6 is fixedly connected to the first spring 15, and two sliding grooves 17 are provided on the inner diameter of the movable ring 6.

[0025] Reference Figure 3Slide blocks 18 are slidably connected in the two slide grooves 17 , and a limiting block 16 is fixedly connected between the two slide blocks 18 .

[0026] Reference Figure 3 The bottom of the limiting block 16 passes through and extends to the inner diameter of the fixing member 7, and the limiting block 16 and the fixing member 7 are slidably connected.

[0027] Reference Figure 3 A limiting groove 10 is provided on the top of the opposite side of the spring rod 2.

[0028] Specifically, the first spring 7 is squeezed by the sliding movable ring 6, so that the slider 18 slides in the sliding groove 17, thereby driving the limit block 16 to slide up and down in the fixing member 7. The limit block 16 is inserted into the limit groove 10 for fixation, thereby achieving the effect of quickly installing and disassembling the spring rod by the sliding movable ring 6.

[0029] Reference Figure 1 The two fixing members 7 are fixedly connected to the opposite sides of the connecting members 8, and the front sides of the two connecting members 8 are provided with two screw holes 9.

[0030] Reference Figure 2 The top of the threaded rod 14 is fixedly connected with a knob 5.

[0031] Reference Figure 2 The top of the knob 5 passes through and extends to the top of the fixing sleeve 1, and the knob 5 and the fixing sleeve 1 are rotationally connected.

[0032] Working principle: By turning the knob 5, the threaded rod 14 at the bottom is driven to rotate. The threads of the upper and lower parts of the threaded rod 14 are opposite. The rotation of the threaded rod 14 drives the two moving blocks 13 to move relative to each other. The two moving blocks 13 move and pull the connecting rods 12 on both sides, thereby pulling the fixed block 11 to move. The fixed block 11 drives the two spring rods 2 to move, thereby adjusting the spacing of the spring rods. The sliding moving ring 6 squeezes the first spring 7, so that the slider 18 slides in the slide groove 17, thereby driving the limit block 16 to slide up and down in the fixing part 7. The limit block 16 is inserted into the limit groove 10 for fixing, realizing the effect of quick installation and disassembly of the spring rod by the sliding moving ring 6. The sliding connection between the inner spline 4 and the outer spline 3 ensures that torque can be ensured when the length is adjusted, and is accurately and stably transmitted between the torsion bar spring and the connected components to avoid slipping or torque loss, thereby ensuring the normal operation of the suspension system.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A torsion bar spring for automobile suspension, comprising a fixing sleeve (1), characterized in that: The inner diameter of the fixed sleeve (1) is rotatably connected to a threaded rod (14), and the surface of the threaded rod (14) is threadedly connected to two moving blocks (13). The left and right sides of the two moving blocks (13) are both rotatably connected to connecting rods (12). The two upper and lower adjacent connecting rods (12) are both rotatably connected to a fixed block (11). The opposite sides of the two fixed blocks (11) are both fixedly connected to a spring rod (2). Both ends of the two spring rods (2) are fixedly connected to an external spline (3). The opposite ends of the two spring rods (2) are fixed to a fixing piece (7). The fixing piece (7) and the inner diameter of the fixed sleeve (1) are both fixedly connected to an internal spline (4). The internal spline (4) is slidably connected to the adjacent external spline (3). The surfaces of the two fixing pieces (7) are both provided with a connecting assembly, and the connecting assembly is used for quick connection.

2. The automobile suspension torsion bar spring according to claim 1, characterized in that: The connecting assembly comprises a first spring (15), the first spring (15) is fixedly connected to a fixing member (7), a movable ring (6) is slidably connected to the surface of the fixing member (7), the right end of the movable ring (6) is fixedly connected to the first spring (15), and two sliding grooves (17) are provided on the inner diameter of the movable ring (6).

3. The automobile suspension torsion bar spring according to claim 2, characterized in that: Slide blocks (18) are slidably connected in the two slide grooves (17), and a limiting block (16) is fixedly connected between the two slide blocks (18).

4. The automobile suspension torsion bar spring according to claim 3, characterized in that: The bottom of the limiting block (16) passes through and extends to the inner diameter of the fixing member (7), and the limiting block (16) and the fixing member (7) are slidably connected.

5. The automobile suspension torsion bar spring according to claim 1, characterized in that: A limiting groove (10) is provided on the top of the opposite side of the spring rod (2).

6. The automobile suspension torsion bar spring according to claim 1, characterized in that: The two fixing members (7) are fixedly connected to connecting members (8) on opposite sides, and the front sides of the two connecting members (8) are provided with two screw holes (9).

7. The automobile suspension torsion bar spring according to claim 1, characterized in that: The top end of the threaded rod (14) is fixedly connected with a knob (5).

8. The automobile suspension torsion bar spring according to claim 7, characterized in that: The top of the knob (5) passes through and extends to the top of the fixing sleeve (1), and the knob (5) and the fixing sleeve (1) are rotationally connected.

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