Uniform-tempering high-stress suspension spring

Abstract

The utility model relates to the technical field of suspension springs, and discloses a high-stress suspension spring uniform in tempering. Comprising a suspension spring, a strip-shaped groove is formed in the inner wall of the suspension spring, a protective metal strip is arranged on the portion, located on the inner wall of the strip-shaped groove, of the suspension spring, a supporting strip is inserted into the portion, located on the inner wall of the strip-shaped groove, of the suspension spring, and a plurality of cooling fins are fixedly connected to the side wall of the supporting strip. The cross section of the protective metal strip is arranged to be an arc-shaped plate and is attached to the side wall of the suspension spring, and a cavity is formed in the inner wall of the supporting strip. Heat can be conducted to the interior of the suspension spring when the protective metal strips and the heat dissipation fins are heated, the interior of the suspension spring can be evenly heated through the heat dissipation fins and the metal heat conduction rods, the tempering uniformity of the suspension spring can be improved, the destressing quality is improved, and the service life of the suspension spring is prolonged. And the tempering quality is prevented from being influenced by non-uniform heating during tempering of the suspension spring.

Description

Technical Field

[0001] The utility model relates to the technical field of suspension springs, in particular to a high-stress suspension spring with uniform tempering. Background Art

[0002] High stress suspension springs play a vital role in automobiles. Suspension springs are elastic elements in automobile suspensions. Their main function is to establish elastic connections between the axle and the frame or body, to bear and transmit vertical loads, and to mitigate and suppress the impact caused by uneven roads. In the production and processing of high stress suspension springs, in order to ensure the subsequent forming effect of high stress suspension springs and the stability of subsequent use, and to prevent the springs from cracking and breaking due to excessive stress, it is necessary to use tempering to reduce the stress of the suspension springs.

[0003] In the prior art, during the tempering process of the suspension spring, the spring needs to be heated to a certain temperature and then cooled naturally to reduce the stress of the suspension spring. However, the automobile suspension spring is relatively large and cannot be fully and completely contacted with the heating end in the furnace after being placed inside the heating furnace body, which will affect the uniformity of the tempering heating, thereby affecting the tempering quality of the suspension spring. Therefore, the utility model designs a high-stress suspension spring with uniform tempering. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that in the prior art, during the tempering process of the suspension spring, the spring needs to be heated to a certain temperature and then naturally cooled to reduce the stress of the suspension spring, and the automobile suspension spring is large in size and cannot be fully and comprehensively contacted with the heating end in the furnace body after being arranged inside the heating furnace body, which affects the uniformity of the tempering heating and thus affects the tempering quality of the suspension spring. A high-stress suspension spring with uniform tempering is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A high-stress suspension spring with uniform tempering comprises a suspension spring, wherein the inner wall of the suspension spring is provided with a strip groove, the inner wall of the suspension spring located in the strip groove is provided with a protective metal strip, the inner wall of the suspension spring located in the strip groove is provided with a support strip inserted therein, a plurality of heat dissipation fins are fixedly connected to the side wall of the support strip, the cross-section of the protective metal strip is arranged as an arc-shaped plate and is arranged in contact with the side wall of the suspension spring, the inner wall of the support strip is provided with a cavity, and the inner wall of the support strip located in the cavity is provided with a clamping mechanism.

[0007] Preferably, through holes are respectively opened inside the plurality of heat dissipation fins, and metal heat-conducting rods are penetrated through the inner walls of the heat dissipation fins located at the through holes, and the metal heat-conducting rods are configured as curved rods.

[0008] Preferably, both ends of the support bar are respectively fixedly connected with wear-resistant metal blocks, and the side of the wear-resistant metal block facing away from the support bar is arranged as an arc surface and is pressed against the inner wall of the suspension spring located in the strip groove.

[0009] Preferably, the clamping mechanism includes a partition, an elastic sheet, a slider and a top block, the partition is fixedly connected to the inner wall of the support bar located in the cavity, the elastic sheet is fixedly connected to the side wall of the partition, the end of the elastic sheet facing away from the partition is fixedly connected to the slider, the slider is slidably arranged on the inner wall of the support bar located in the cavity, and the top block is fixedly connected to the side of the slider facing away from the elastic sheet.

[0010] Preferably, the inner walls of the support bar and the wear-resistant metal block are respectively provided with openings, and the top block passes through the openings and extends to the inner wall of the strip groove where the suspension spring is located.

[0011] Preferably, an end of the top block away from the sliding block is fixedly connected to an anti-skid pad, and an end of the anti-skid pad away from the top block is provided with a plurality of anti-skid grooves.

[0012] Compared with the prior art, the utility model provides a high-stress suspension spring with uniform tempering, which has the following beneficial effects:

[0013] 1. The high-stress suspension spring with uniform tempering can transfer heat to the inside of the suspension spring through the protective metal strips and heat dissipation fins. The inside of the suspension spring can be heated evenly through the heat dissipation fins and the metal heat-conducting rods, which can improve the uniformity of the suspension spring tempering, improve the quality of stress relief, and prevent the uneven heating of the suspension spring during tempering from affecting the tempering quality.

[0014] 2. The evenly tempered high-stress suspension spring has a plurality of anti-skid grooves on the end of the anti-skid pad away from the top block and is tightly arranged inside the strip groove of the suspension spring, which can improve the stability of the support bar inside the strip groove and prevent the support bar from shifting and slipping inside the strip groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a high-stress suspension spring with uniform tempering proposed by the utility model;

[0016] Figure 2 for Figure 1 A schematic diagram of the structure of the local A part;

[0017] Figure 3 for Figure 2 Schematic diagram of the enlarged structure of part B in the middle.

[0018] In the figure: 1 suspension spring, 2 protective metal strip, 3 support strip, 4 heat dissipation fin, 5 metal heat conducting rod, 6 wear-resistant metal block, 7 partition, 8 elastic sheet, 9 slider, 10 top block, 11 anti-slip pad. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Embodiment 1

[0021] Reference Figure 1-3 A high-stress suspension spring with uniform tempering includes a suspension spring 1, a strip groove is provided on the inner wall of the suspension spring 1, a protective metal strip 2 is provided on the inner wall of the suspension spring 1 located in the strip groove, a support strip 3 is inserted into the inner wall of the suspension spring 1 located in the strip groove, a plurality of heat dissipation fins 4 are fixedly connected to the side wall of the support strip 3, the cross section of the protective metal strip 2 is set as an arc plate and is arranged in contact with the side wall of the suspension spring 1, and a cavity is provided on the inner wall of the support strip 3.

[0022] Through holes are respectively opened inside the multiple heat dissipation fins 4, and metal heat-conducting rods 5 are penetrated through the inner walls of the heat dissipation fins 4 located at the through holes. The metal heat-conducting rods 5 are configured as curved rods, and wear-resistant metal blocks 6 are respectively fixedly connected to the two ends of the support bar 3. The side of the wear-resistant metal block 6 facing away from the support bar 3 is configured as an arc surface and is pressed against the inner wall of the suspension spring 1 located in the strip groove.

[0023] A clamping mechanism is provided on the inner wall of the support bar 3 located in the cavity, and the clamping mechanism includes a partition 7, an elastic sheet 8, a slider 9 and a top block 10. The partition 7 is fixedly connected to the inner wall of the support bar 3 located in the cavity, the elastic sheet 8 is fixedly connected to the side wall of the partition 7, and the end of the elastic sheet 8 facing away from the partition 7 is fixedly connected to the slider 9. The slider 9 is slidably arranged on the inner wall of the support bar 3 located in the cavity, and the top block 10 is fixedly connected to the side of the slider 9 facing away from the elastic sheet 8.

[0024] When in use, the suspension spring 1 will be processed into a straight metal strip before being processed and formed to facilitate subsequent processing and forming. The straight metal strip is first grooved to facilitate the processing of the strip groove. Then the protective metal strip 2 and other structures are placed inside the strip groove. The elastic sheet 8 pushes the slider 9 to move so that the top block 10 extends to the inside of the strip groove, which can improve the stability of the support strip 3 inside the strip groove. Then the suspension spring 1 is bent and formed. At this time, the inside of the suspension spring 1 has a higher stress. In order to make the stress inside the suspension spring 1 controllable and improve the stability of subsequent use, the suspension spring 1 is extended to the inside of the heating furnace. The protective metal strip 2 and the heat dissipation fins 4 are heated and can conduct heat to the inside of the suspension spring 1. The heat dissipation fins 4 and the metal heat conducting rods 5 can make the inside of the suspension spring 1 evenly heated, which can improve the uniformity of tempering of the suspension spring 1, improve the quality of stress relief, and prevent the suspension spring 1 from being heated unevenly during tempering and affecting the tempering quality.

[0025] Embodiment 2

[0026] Reference Figure 1-3 The inner walls of the support bar 3 and the wear-resistant metal block 6 are respectively provided with openings, the top block 10 passes through the opening and extends to the inner wall of the strip groove where the suspension spring 1 is located, and the end of the top block 10 away from the slider 9 is fixedly connected with an anti-slip pad 11, and the end of the anti-slip pad 11 away from the top block 10 is provided with multiple anti-slip grooves.

[0027] The end of the anti-skid pad 11 away from the top block 10 is provided with multiple anti-skid grooves and is tightly arranged inside the strip groove of the suspension spring 1, which can improve the stability of the support bar 3 inside the strip groove and prevent the support bar 3 from shifting and slipping inside the strip groove.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A uniformly tempered high stress suspension spring, comprising a suspension spring (1), characterized in that: The inner wall of the suspension spring (1) is provided with a strip groove, the inner wall of the suspension spring (1) is provided with a protective metal strip (2), the inner wall of the suspension spring (1) is provided with a support strip (3) inserted into the inner wall of the suspension spring (1), a plurality of heat dissipation fins (4) are fixedly connected to the side wall of the support strip (3), the cross section of the protective metal strip (2) is arranged as an arc-shaped plate and is arranged in close contact with the side wall of the suspension spring (1), the inner wall of the support strip (3) is provided with a cavity, and the inner wall of the support strip (3) located in the cavity is provided with a clamping mechanism.

2. A uniformly tempered high stress suspension spring according to claim 1, characterized in that: Through holes are respectively provided inside the plurality of heat dissipation fins (4), and metal heat conduction rods (5) are provided through the inner walls of the heat dissipation fins (4) located at the through holes, wherein the metal heat conduction rods (5) are configured as curved rods.

3. A uniformly tempered high stress suspension spring according to claim 1, characterized in that: The two ends of the support bar (3) are respectively fixedly connected with wear-resistant metal blocks (6); the side of the wear-resistant metal block (6) facing away from the support bar (3) is arranged as an arc surface and is pressed against the inner wall of the suspension spring (1) located in the strip groove.

4. A uniformly tempered high stress suspension spring according to claim 1, characterized in that: The clamping mechanism comprises a partition (7), an elastic sheet (8), a slider (9) and a top block (10); the partition (7) is fixedly connected to the inner wall of the support bar (3) located in the cavity; the elastic sheet (8) is fixedly connected to the side wall of the partition (7); one end of the elastic sheet (8) facing away from the partition (7) is fixedly connected to the slider (9); the slider (9) is slidably arranged on the inner wall of the support bar (3) located in the cavity; and the top block (10) is fixedly connected to a side of the slider (9) facing away from the elastic sheet (8).

5. A uniformly tempered high stress suspension spring according to claim 4, characterized in that: The inner walls of the support strip (3) and the wear-resistant metal block (6) are respectively provided with openings, and the top block (10) passes through the openings and extends to the inner wall of the strip groove where the suspension spring (1) is located.

6. A uniformly tempered high stress suspension spring according to claim 4, characterized in that: An end of the top block (10) away from the slider (9) is fixedly connected to an anti-skid pad (11), and an end of the anti-skid pad (11) away from the top block (10) is provided with a plurality of anti-skid grooves.

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