Equipment for cooling and leakage detection of oil storage cylinder of shock absorber

Abstract

The utility model discloses a device for shock absorber oil storage cylinder cooling and leakage detection, which relates to the shock absorber detection field and comprises a device platform, a cooling groove is arranged on the device platform, support columns are arranged on the device platform on two sides of the cooling groove, and a support plate is fixed on the tops of the two support columns. The lifting plate is arranged below the supporting plate, and the two sides of the lifting plate are installed on the guide columns in a sliding mode; the two ends of the lifting support are fixedly connected to the lower portion of the lifting plate through connecting rods, and the lifting support synchronously ascends and descends relative to the cooling tank along with the lifting plate; the outer wall of the oil storage cylinder is sleeved with a spring plate, the bottom of the spring plate extends outwards in the radial direction to form a flange, and a bottom cover is arranged at the bottom of the oil storage cylinder; the upper detection assembly is driven by an external cylinder and moves up and down relative to the upper end of the oil storage barrel; and the lower detection assembly is fixed on the lifting bracket. According to the utility model, the leakage indication detection of the spring disc outside the oil storage cylinder is added to make up the deficiency of the existing testing capability; meanwhile, the cooling process and the leakage indicating process are integrated, and occupied space is reduced.

Description

Technical Field

[0001] The utility model relates to the field of shock absorber detection, in particular to a device for cooling and leak detection of a shock absorber oil storage cylinder. Background Art

[0002] Currently, during the production process, shock absorber quality inspections begin by cooling the hot, welded product to room temperature using an oil reservoir cooling device. Then, using a leak detector, the reservoir is inflated to test for leaks inside the reservoir to determine if the weld is leaking. To seal the product, the leak detector places the reservoir on a core rod, with the O-ring tightly fitting inside the reservoir opening to achieve a seal.

[0003] However, the prior art has the following defects:

[0004] 1. Since the air filling hole of the leak detector is on the core rod and the sealing component is at the mouth of the oil reservoir, it can only test whether there is leakage inside the oil reservoir (test the welding effect of the bottom cover), and cannot test external components such as the spring disk;

[0005] 2. Cooling and leak detection are two processes, and the space occupied and the manufacturing time are twice that of a single device;

[0006] 3. The O-ring fits tightly against the mouth of the oil storage cylinder. During the test, the length of the core rod inserted will change due to friction, which will change the sealing performance and affect the test results. Utility Model Content

[0007] The purpose of the present utility model is to overcome the deficiencies of the prior art and to provide a device for cooling and leak detection of the oil reservoir of a shock absorber, adding leakage detection of the spring disk outside the oil reservoir to make up for the deficiencies of the existing testing capabilities; the cooling and leak detection processes are combined into one, a multifunctional workstation is established, and space occupancy is reduced; the sealing method is changed to reduce fluctuations during the test process and improve the reliability of the test results.

[0008] The purpose of the utility model is to achieve the following technical solutions: This device for cooling and leak detection of shock absorber oil storage cylinders includes:

[0009] The equipment platform has a cooling trough on it. Support columns are provided on the equipment platform on both sides of the cooling trough. Support plates are fixed on the top of the two support columns for installing the driving cylinder.

[0010] The lifting plate is arranged below the support plate, with both sides of the lifting plate slidingly mounted on the guide pillars, and the bottom of the guide pillars is fixed in the cooling tank, and the driving cylinder drives the lifting plate to move up and down along the guide pillars;

[0011] The lifting bracket has two ends fixedly connected to the lower part of the lifting plate through connecting rods, and moves up and down relative to the cooling tank synchronously with the lifting plate;

[0012] An oil storage cylinder is provided with a spring disk sleeved on its outer wall, the bottom of the spring disk radially extends outward to form a flange, and a bottom cover is provided at the bottom of the oil storage cylinder;

[0013] an upper detection assembly driven by an external cylinder and moving up and down relative to the upper end of the oil storage barrel, for inserting into and sealing the upper end of the oil storage barrel, and for inflating the oil storage barrel through the upper detection assembly; and

[0014] The lower detection component is fixed on the lifting bracket, the lower end of the oil storage cylinder extends into the lower detection component for support, and a leakage hole is provided on the lower detection component to realize leakage detection.

[0015] As a further technical solution, the upper detection assembly includes an upper shell body, a sealing pressure head is fixedly installed in the inner cavity of the upper shell body, and an annular groove is opened at the lower mouth of the upper shell body for placing a sealing ring. When the sealing pressure head is inserted from the upper end of the oil storage cylinder, the upper end surface of the flange is pressed tightly against the sealing ring to form a sealed cavity between the inner cavity of the upper shell body and the spring disk; an air nozzle mounting hole is opened on the outer wall of the upper shell body for installing the air nozzle, and the air nozzle mounting hole is connected to the sealing cavity through a connecting hole.

[0016] As a further technical solution, the lower detection assembly includes a lower shell, which has a receiving groove on the upper part for the lower end of the oil storage cylinder to extend into, and the leakage hole is opened through the outer wall of the lower shell below the receiving groove, and the leakage hole is connected to the center hole opened at the bottom of the receiving groove.

[0017] As a further technical solution, a supporting base plate is fixed on the lifting bracket, and the supporting base plate is fixed on the carrier plate. A supporting seat is also fixed on the carrier plate above the supporting base plate. After the oil storage cylinder is extended into the lower detection assembly, the lower end surface of the flange rests on the support seat.

[0018] As a further technical solution, a gap is provided on the support seat for the oil storage cylinder to pass through, and ball screws are installed on both sides of the gap for clamping the oil storage cylinder.

[0019] The beneficial effects of the utility model are:

[0020] 1. The internal seal is changed to mouth + external seal. The area that needs to be sealed is changed from cylindrical to flat (sealed with a sealing ring). The sealed area is actually reduced, the sealing effect is better, the fluctuation during the test is reduced, and the reliability of the test results is improved.

[0021] 2. Constant temperature coolant replaces the separate cooling process. The double cooling saves space and cycle time without affecting the cooling effect, thus improving production efficiency.

[0022] 3. Expand the leakage detection range of shock absorbers and add the detection of outer spring discs to make up for the shortcomings of existing testing capabilities. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural diagram of the present utility model.

[0024] Figure 2 It is a structural schematic diagram of the oil storage cylinder in the utility model.

[0025] Figure 3 This is a schematic diagram of the structure of the utility model after the oil storage cylinder and the upper and lower detection components are assembled.

[0026] Figure 4 It is a schematic diagram of the three-dimensional structure of the upper detection component in the utility model.

[0027] Figure 5 for Figure 4 Top view of .

[0028] Figure 6 for Figure 5 AA cross-sectional view.

[0029] Figure 7 It is a schematic cross-sectional view of the oil storage cylinder and the upper detection assembly after sealing in the utility model.

[0030] Figure 8 This is a structural diagram of the lower detection component and the carrier plate after being fixed in the utility model.

[0031] Figure 9 This is a schematic diagram of the main structure of the lower shell of the utility model.

[0032] Figure 10 for Figure 9 BB cross-sectional view.

[0033] Explanation of the accompanying drawings: equipment platform 1, cooling trough 2, support plate 3, support column 4, lifting plate 5, guide column 6, connecting rod 7, lifting bracket 8, oil storage cylinder 9, spring disk 10, flange 11, bottom cover 12, upper shell 13, sealing pressure head 14, air nozzle mounting hole 15, air nozzle 16, connecting hole 17, sealing ring 18, sealing chamber 19, groove 20, lower shell 21, accommodating groove 22, center hole 23, leakage hole 24, carrier plate 25, support base plate 26, support seat 27, ball screw 28, notch 29. DETAILED DESCRIPTION

[0034] The following is a detailed introduction to the present invention with reference to the accompanying drawings:

[0035] Example: As shown in the attached Figures 1 to 10As shown, the equipment for cooling and leak detection of shock absorber oil storage cylinders includes an equipment platform 1, a cooling groove 2, a support plate 3, a support column 4, a lifting plate 5, a guide column 6, a connecting rod 7, a lifting bracket 8, an oil storage cylinder 9, a spring disk 10, a flange 11, a bottom cover 12, an upper shell 13, a sealing pressure head 14, an air nozzle mounting hole 15, an air nozzle 16, a connecting hole 17, a sealing ring 18, a sealing cavity 19, a groove 20, a lower shell 21, a receiving groove 22, a center hole 23, a leakage hole 24, a carrier plate 25, a support base plate 26, a support seat 27, a ball screw 28 and a notch 29.

[0036] Reference Attachment Figure 1 A cooling trough 2 is provided on the equipment platform 1. This trough is filled with a constant-temperature coolant to support the cooling of the product to room temperature. A support column 4 is provided on each side of the equipment platform 1. A support plate 3 is fixed to the top of each support column 4. A drive cylinder (not shown) is mounted on the support plate 3.

[0037] The lifting plate 5 is positioned below the support plate 3. Both sides of the lifting plate 5 are slidably mounted on guide posts 6, and the bottoms of the guide posts 6 are fixedly supported on the bottom of the cooling trough 2. The driving cylinder drives the lifting plate 5 up and down along the guide posts 6. The ends of the lifting brackets 8 are fixedly connected to the bottom of the lifting plate 5 by connecting rods 7, and the lifting plate 5 moves up and down relative to the cooling trough 2 synchronously with the lifting plate 5.

[0038] like Figure 2 As shown, a spring disk 10 (welded and fixed) is sleeved on the outer wall of the oil storage cylinder 9, and the bottom of the spring disk 10 extends radially outward to form a flange 11. A bottom cover 12 is provided at the bottom of the oil storage cylinder 9.

[0039] Reference Attachment Figure 3 、 4 , 6, 7, the upper detection assembly is driven by an external cylinder (not shown) and moves up and down relative to the upper end of the oil reservoir 9. The upper detection assembly is inserted into the upper end of the oil reservoir 9 and sealed, and the oil reservoir 9 is inflated through the upper detection assembly. Furthermore, the upper detection assembly includes an upper shell 13, the inner cavity of the upper shell 13 is fixedly connected to the sealing pressure head 14 by bolts, and the lower end of the upper shell 13 is provided with an annular groove 20, and the groove 20 is provided with a sealing ring 18. When the sealing pressure head 14 is inserted from the upper end of the oil reservoir 9, the upper end surface of the flange 11 and the sealing ring 18 are pressed and fitted, forming a sealed cavity 19 between the inner cavity of the upper shell 13 and the spring disk 10. The outer wall of the upper shell 13 is provided with a gas nozzle mounting hole 15 for mounting a gas nozzle 16. The gas nozzle mounting hole 15 is connected to the sealed cavity 19 through a connecting hole 17, and gas is introduced into the sealed cavity 19 by the gas nozzle 16.

[0040] like Figures 8-10As shown, the lower detection assembly is bolted to the lifting bracket 8. The lower end of the oil reservoir 9 extends into the lower detection assembly for support. A leak hole 24 is defined in the lower detection assembly to facilitate leak detection. Furthermore, the lower detection assembly includes a lower housing 21. A receiving slot 22 is defined in the upper portion of the lower housing 21 for the lower end of the oil reservoir 9 to extend into. A leak hole 24 is defined through the outer wall of the lower housing 21 below the receiving slot 22. The leak hole 24 communicates with a central hole 23 defined in the bottom of the receiving slot 22.

[0041] Reference Attachment Figure 3 、 8 A support base 26 is fixed to the lifting bracket 8, which is fixed to the carrier plate 25. A support seat 27 is also fixed to the carrier plate 25 above the support base 26. After the oil reservoir 9 is inserted into the lower detection assembly, the lower end surface of the flange 11 abuts against the support seat 27. Preferably, a notch 29 is formed in the support seat 27 for the oil reservoir 9 to pass through, and ball screws 28 are installed on both sides of the notch 29 to clamp the oil reservoir 9.

[0042] The working process of this utility model:

[0043] The driving cylinder moves the lifting plate 5 downward along the guide post 6, immersing the welded product in the cooling tank 2 for cooling. Leakage testing is performed at a consistent temperature, ensuring stable test results. The lower detection assembly remains stationary. After the upper detection assembly is molded, a sealed cavity 19 is formed between the spring plate 10 and the oil reservoir 9, allowing for inflation leak testing. This sealed structure eliminates the impact of material or process variations on the cavity volume, thereby improving the stability of leak test results.

[0044] The principle of leak detection is to inject gas into the sealing cavity 19 through the gas nozzle 16, detect the gas leakage within a specified time, and judge whether there is a weld after the product is welded.

[0045] It is understandable that for those skilled in the art, any equivalent replacement or change of the technical solution and the concept of the utility model should fall within the scope of protection of the claims attached to the utility model.

Claims

1. A device for cooling and leak detection of shock absorber oil reservoir, characterized in that: include: An equipment platform (1) is provided with a cooling trough (2) thereon, support columns (4) are provided on the equipment platform (1) on both sides of the cooling trough (2), and support plates (3) are fixed on the tops of the two support columns (4) for installing a driving cylinder; The lifting plate (5) is arranged below the support plate (3), and both sides of the lifting plate (5) are slidably mounted on the guide pillars (6), and the bottom of the guide pillars (6) is fixed in the cooling groove (2), and the driving cylinder drives the lifting plate (5) to move up and down along the guide pillars (6); A lifting bracket (8), both ends of which are fixedly connected to the lower portion of the lifting plate (5) via connecting rods (7), and moves up and down relative to the cooling trough (2) synchronously with the lifting plate (5); An oil storage cylinder (9) is provided with a spring disk (10) sleeved on its outer wall, the bottom of the spring disk (10) extends radially outward to form a flange (11), and a bottom cover (12) is provided at the bottom of the oil storage cylinder (9); An upper detection assembly is driven by an external cylinder and moves up and down relative to the upper end of the oil storage barrel (9), and is used to be inserted into the upper end of the oil storage barrel (9) and sealed, and to inflate the oil storage barrel (9) through the upper detection assembly; as well as The lower detection assembly is fixed on the lifting bracket (8), and the lower end of the oil storage cylinder (9) extends into the lower detection assembly for support. The lower detection assembly is provided with a leakage hole (24) to realize leakage detection.

2. The device for cooling and leak detection of shock absorber oil reservoir according to claim 1, characterized in that: The upper detection assembly comprises an upper shell (13), an inner cavity of the upper shell (13) is fixedly mounted with a sealing pressure head (14), a lower opening of the upper shell (13) is provided with an annular groove (20) for receiving a sealing ring (18), and when the sealing pressure head (14) is inserted from the upper end of the oil storage cylinder (9), the upper end surface of the flange (11) and the sealing ring (18) are pressed and matched, so that a sealing cavity (19) is formed between the inner cavity of the upper shell (13) and the spring disk (10); an air nozzle mounting hole (15) is provided on the outer wall of the upper shell (13) for mounting an air nozzle (16), and the air nozzle mounting hole (15) is communicated with the sealing cavity (19) through a communicating hole (17).

3. The device for cooling and leak detection of shock absorber oil reservoir according to claim 1 or 2, characterized in that: The lower detection assembly includes a lower shell (21), an accommodating groove (22) is provided on the upper portion of the lower shell (21), for the lower end of the oil storage cylinder (9) to extend therein, and a leakage hole (24) is provided through the outer wall of the lower shell (21) below the accommodating groove (22), and the leakage hole (24) is communicated with a central hole (23) provided at the bottom of the accommodating groove (22).

4. The device for cooling and leak detection of shock absorber oil reservoir according to claim 1, characterized in that: A supporting base plate (26) is fixed on the lifting bracket (8), and the supporting base plate (26) is fixed on the carrier plate (25). A supporting seat (27) is also fixed on the carrier plate (25) above the supporting base plate (26). After the oil storage cylinder (9) extends into the lower detection assembly, the lower end surface of the flange (11) abuts against the supporting seat (27).

5. The device for cooling and leak detection of shock absorber oil reservoir according to claim 4, characterized in that: A notch (29) is provided on the support seat (27) for the oil storage cylinder (9) to pass through, and ball screws (28) are installed on both sides of the notch (29) for clamping the oil storage cylinder (9).

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