Steel wheel rim airtightness detection device

Abstract

The invention discloses steel wheel rim airtightness detection equipment, and relates to the technical field of rim detection. According to the steel wheel rim airtightness detection equipment, when a rim body is detected through cooperation of the bearing base plate and the lower pressing disc frame, sealing and pushing operation of the rim body can be completed along with continuous downward movement of the lower pressing disc frame till the rim body is immersed in water, and then detection treatment is conducted; compared with a traditional detection mode, the detection method is more convenient, the detection stability and the detection effect of the rim body can be guaranteed, manpower is saved, and meanwhile the detection efficiency of the rim body can be effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of rim detection, in particular to an air tightness detection device for a steel wheel rim. Background Art

[0002] The rim, commonly known as the wheel rim, is the component on the wheel that mounts and supports the tire. Together with the spokes, it forms the wheel. The rim and spokes can be integral, permanently connected, or detachable. Referring to Chinese patent publication number "CN118837039B," entitled "A Steel Wheel Rim Air Tightness Tester," the patent notes that existing rim air tightness testers are inconvenient to fully seal rims of varying sizes, which can easily result in incomplete sealing and affect test results. However, this equipment still suffers from poor operational convenience, which impacts test efficiency. To address this issue, we have proposed a steel wheel rim air tightness tester to address this issue. Summary of the Invention

[0003] In view of the deficiencies in the prior art, the present invention provides an air tightness detection device for a steel wheel rim, which solves the problems raised in the above-mentioned background technology.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: A steel wheel rim air tightness testing device includes a body, a liquid storage cylinder is fixedly installed inside the body, a supporting base is slidably installed inside the liquid storage cylinder, a support spring is fixedly installed between the supporting base and the liquid storage cylinder for supporting the supporting base, and a rim body to be tested is placed above the supporting base;

[0005] A lower pressure disc frame is installed inside the body so as to slide up and down. The installation position of the lower pressure disc frame is coaxial with the supporting base plate and is used to slide downward in the vertical direction to contact the rim body, seal the rim body and press it into the liquid storage cylinder;

[0006] A negative pressure device is fixedly installed on the top surface of the lower pressure disc frame, and a connecting pipe is connected between the negative pressure device and the lower pressure disc frame. A pressure relief valve is fixedly installed inside the lower pressure disc frame, and a detection module is provided inside the liquid storage cylinder for detecting bubbles that emerge during the detection process.

[0007] Preferably, a hydraulic cylinder is provided above the lower pressure disc frame, the hydraulic cylinder is fixedly installed inside the machine body, a concave transmission frame is fixedly installed on the top surface of the lower pressure disc frame, and the piston end of the hydraulic cylinder is fixedly connected to the concave transmission frame to drive the lower pressure disc frame to move downward.

[0008] Preferably, a plurality of limiting slides are fixedly mounted on the outer side of the carrier base plate, the limiting slides are all slidably connected to the inner wall of the liquid storage cylinder, and an elastic protective sleeve is sleeved on the outer side of the support spring.

[0009] Preferably, a supporting railing is fixedly installed between two adjacent limiting slides.

[0010] Preferably, a conveying assembly is connected inside the machine body for conveying the rim body.

[0011] Preferably, the conveying assembly includes a conveying frame and an output frame, which are fixedly installed inside the machine body, and the installation positions of the conveying frame and the output frame are both located on the outside of the liquid storage cylinder. The conveying frame and the output frame are respectively rotatably connected to the interior of the conveying frame and the output frame, which are respectively used to convey the rim body.

[0012] Preferably, the top surface heights of the conveyor belt and the output belt are kept flush with the top surface of the supporting substrate, and a side pushing cylinder and a plurality of side limiting cylinders are fixedly installed on the outer side of the machine body. An arc-shaped pushing frame is fixedly installed on the piston end of the side pushing cylinder, and an arc-shaped limiting frame is fixedly installed on the piston end of the side limiting cylinder, both of which are used to adjust the position of the conveyed rim body so that the rim body can be located directly above the supporting substrate.

[0013] Preferably, an annular limiting frame is provided above the supporting base plate, the annular limiting frame is fixedly installed inside the machine body, and the annular limiting frame is used to limit the rim body.

[0014] Preferably, a plurality of drainage holes are provided inside the output belt to allow the liquid on the surface of the rim body to flow into the output rack, and a reflux rack is fixedly installed between the end of the output rack and the liquid storage cylinder to allow the liquid to flow back into the liquid storage cylinder, and a concave upper sealing plate is fixed above the reflux rack, and one-way valves are fixedly installed on both sides of the concave upper sealing plate.

[0015] Preferably, a positioning plate rack is fixed inside the machine body, and a drying device is installed inside the positioning plate rack for drying the rim body.

[0016] The present invention provides a steel wheel rim air tightness detection device. Compared with the prior art, it has the following advantages:

[0017] (1) The steel wheel rim air tightness testing equipment can complete the sealing and pushing operation of the rim body as the lower pressure plate continues to move downward when testing the rim body through the cooperation of the supporting base plate and the lower pressure plate frame, until the rim body is immersed in water for testing. Compared with the traditional testing method, it is more convenient, can ensure the testing stability and testing effect of the rim body, save manpower and effectively improve the testing efficiency of the rim body.

[0018] (2) The steel wheel rim air tightness testing equipment can facilitate the conveying and processing of the rim body through the cooperation of the conveying assembly, thereby improving the operating efficiency of the equipment. At the same time, when the rim body after inspection is output through the output belt, the moisture on its surface can flow back to the inside of the liquid storage cylinder through the output rack and the return rack, which can reduce the waste of water resources and maintain the working environment at the same time, reduce manual intervention and improve the convenience of equipment maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 For the present invention Figure 1 Look at the structural diagram;

[0021] Figure 3 For the present invention Figure 1 Schematic diagram of cross-section structure;

[0022] Figure 4 It is a schematic diagram of the structure of the liquid storage cylinder and the rim body of the present invention;

[0023] Figure 5 For the present invention Figure 4 Schematic diagram of cross-section structure;

[0024] Figure 6 For the present invention Figure 5 Look at the structural diagram;

[0025] Figure 7 This is a schematic diagram of the cross-sectional structure of the reflow rack of the present invention;

[0026] Figure 8 This is a schematic diagram of the structure of the carrier substrate of the present invention;

[0027] Figure 9 This is a schematic diagram of the structure of the downward pressure disc rack of the present invention.

[0028] In the figure: 1. Machine body; 101. Hydraulic cylinder; 2. Conveying rack; 201. Conveying belt; 3. Output rack; 301. Output belt; 4. Liquid storage cylinder; 5. Carrying base plate; 501. Limiting slide plate; 502. Support spring; 503. Elastic protective sleeve; 504. Support railing; 6. Rim body; 7. Lower pressure plate rack; 701. Concave transmission rack; 702. Negative pressure device; 703. Connecting pipe; 704. Pressure relief valve; 8. Side pushing cylinder; 801. Arc-shaped pushing rack; 9. Side limiting cylinder; 901. Arc-shaped limiting rack; 10. Annular limiting rack; 11. Reflux rack; 1101. Concave upper sealing plate; 1102. One-way valve; 12. Positioning plate rack; 1201. Drying device. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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.

[0030] See also Figures 1-9 The present invention provides two technical solutions, specifically including the following embodiments:

[0031] Example 1:

[0032] A steel wheel rim air tightness testing device includes a body 1, a liquid storage cylinder 4 is fixedly installed inside the body 1, a supporting base plate 5 is slidably installed inside the liquid storage cylinder 4, a support spring 502 is fixedly installed between the supporting base plate 5 and the liquid storage cylinder 4, and is used to support the supporting base plate 5. A rim body 6 to be tested is placed above the supporting base plate 5;

[0033] A downward pressing disc frame 7 is installed inside the body 1 so as to slide up and down. The installation position of the downward pressing disc frame 7 is coaxial with the supporting base plate 5. The downward pressing disc frame 7 is used to slide downward in the vertical direction to contact the rim body 6, thereby sealing the rim body 6 and pressing it into the liquid storage cylinder 4.

[0034] A negative pressure device 702 is fixedly installed on the top surface of the lower pressure disc frame 7, and a connecting pipe 703 is connected between the negative pressure device 702 and the lower pressure disc frame 7. A pressure relief valve 704 is fixedly installed inside the lower pressure disc frame 7. A detection module is provided inside the liquid storage cylinder 4 for detecting bubbles that emerge during the detection process.

[0035] Specifically, when inspecting the rim body 6, first, water is filled into the liquid storage cylinder 4, and then the rim body 6 to be inspected is placed above the supporting base plate 5. At this time, as the lower pressure disc frame 7 moves downward, it can contact the rim body 6 and seal the rim body 6 through the cooperation of the supporting base plate 5 and the lower pressure disc frame 7. Then, as the lower pressure disc frame 7 continues to move downward, the rim body 6 and the supporting base plate 5 can enter the liquid storage cylinder 4 until the rim body 6 is completely immersed in water. The negative pressure device 702 is operated to inject gas into the sealed rim body 6 until the air pressure inside the rim body 6 reaches a preset value. Then, the detection module can be used to detect whether there are bubbles in the water. After the detection is completed, the lower pressure disc frame 7 is moved upward and reset, and the supporting base plate 5 can be reset again through the cooperation of the support spring 502, and the inspected rim body 6 is pushed out to complete the detection operation.

[0036] The rim body 6 is inspected by the cooperation of the supporting base plate 5 and the lower pressing plate frame 7. As the lower pressing plate frame 7 continues to move downward, the rim body 6 is sealed and pushed until the rim body 6 is immersed in water for inspection. Compared with the traditional inspection method, it is more convenient, can ensure the inspection stability and inspection effect of the rim body 6, save manpower and can effectively improve the inspection efficiency of the rim body 6.

[0037] The side of the supporting base plate 5 and the lower pressure plate frame 7 close to the rim body 6 is equipped with a sealing pad to ensure the sealing effect of the rim body 6;

[0038] The detection module is an existing shooting device, which is used to transmit the shooting picture to the terminal. The detection module is controlled based on the existing PLC control module, which will not be described in detail here;

[0039] After the test is completed, the lower pressure disc 7 is reset, and the rim body 6 and the supporting substrate 5 can move up to the initial position. At this time, the pressure inside the rim body 6 is released through the pressure relief valve 704, and then the lower pressure disc 7 is controlled to move up and separate from the rim body 6;

[0040] Specifically, the negative pressure device 702 and the pressure relief valve 704 are both existing devices and are not described in detail here;

[0041] Specifically, a hydraulic cylinder 101 is provided above the lower pressure plate frame 7. The hydraulic cylinder 101 is fixedly installed inside the machine body 1. A concave transmission frame 701 is fixedly installed on the top surface of the lower pressure plate frame 7. The piston end of the hydraulic cylinder 101 is fixedly connected to the concave transmission frame 701, which is used to drive the lower pressure plate frame 7 to move downward.

[0042] Specifically, a plurality of limiting slides 501 are fixedly installed on the outside of the supporting substrate 5, and the limiting slides 501 are all slidably connected to the inner wall of the liquid storage cylinder 4. An elastic protective sleeve 503 is sleeved on the outside of the support spring 502. The support spring 502 is used to ensure the supporting effect of the supporting substrate 5 and is also used to push the supporting substrate 5 to reset.

[0043] Example 2: Based on Example 1, a steel wheel rim air tightness testing device includes a body 1, a liquid storage cylinder 4 is fixedly installed inside the body 1, a supporting base plate 5 is slidably installed inside the liquid storage cylinder 4, a support spring 502 is fixedly installed between the supporting base plate 5 and the liquid storage cylinder 4, and is used to support the supporting base plate 5. A rim body 6 to be tested is placed above the supporting base plate 5;

[0044] A downward pressing disc frame 7 is installed inside the body 1 so as to slide up and down. The installation position of the downward pressing disc frame 7 is coaxial with the supporting base plate 5. The downward pressing disc frame 7 is used to slide downward in the vertical direction to contact the rim body 6, thereby sealing the rim body 6 and pressing it into the liquid storage cylinder 4.

[0045] A negative pressure device 702 is fixedly installed on the top surface of the lower pressure disc frame 7, and a connecting pipe 703 is connected between the negative pressure device 702 and the lower pressure disc frame 7. A pressure relief valve 704 is fixedly installed inside the lower pressure disc frame 7. A detection module is provided inside the liquid storage cylinder 4 for detecting bubbles that emerge during the detection process.

[0046] Specifically, when inspecting the rim body 6, first, water is filled into the liquid storage cylinder 4, and then the rim body 6 to be inspected is placed above the supporting base plate 5. At this time, as the lower pressure disc frame 7 moves downward, it can contact the rim body 6 and seal the rim body 6 through the cooperation of the supporting base plate 5 and the lower pressure disc frame 7. Then, as the lower pressure disc frame 7 continues to move downward, the rim body 6 and the supporting base plate 5 can enter the liquid storage cylinder 4 until the rim body 6 is completely immersed in water. The negative pressure device 702 is operated to inject gas into the sealed rim body 6 until the air pressure inside the rim body 6 reaches a preset value. Then, the detection module can be used to detect whether there are bubbles in the water. After the detection is completed, the lower pressure disc frame 7 is moved upward and reset, and the supporting base plate 5 can be reset again through the cooperation of the support spring 502, and the inspected rim body 6 is pushed out to complete the detection operation.

[0047] The rim body 6 is inspected by the cooperation of the supporting base plate 5 and the lower pressing plate frame 7. As the lower pressing plate frame 7 continues to move downward, the rim body 6 is sealed and pushed until the rim body 6 is immersed in water for inspection. Compared with the traditional inspection method, it is more convenient, can ensure the inspection stability and inspection effect of the rim body 6, save manpower and can effectively improve the inspection efficiency of the rim body 6.

[0048] The side of the supporting base plate 5 and the lower pressure plate frame 7 close to the rim body 6 is equipped with a sealing pad to ensure the sealing effect of the rim body 6;

[0049] The detection module is an existing shooting device, which is used to transmit the shooting picture to the terminal. The detection module is controlled based on the existing PLC control module, which will not be described in detail here;

[0050] After the test is completed, the lower pressure disc 7 is reset, and the rim body 6 and the supporting substrate 5 can move up to the initial position. At this time, the pressure inside the rim body 6 is released through the pressure relief valve 704, and then the lower pressure disc 7 is controlled to move up and separate from the rim body 6;

[0051] Specifically, the negative pressure device 702 and the pressure relief valve 704 are both existing devices and are not described in detail here;

[0052] Specifically, a hydraulic cylinder 101 is provided above the lower pressure plate frame 7. The hydraulic cylinder 101 is fixedly installed inside the machine body 1. A concave transmission frame 701 is fixedly installed on the top surface of the lower pressure plate frame 7. The piston end of the hydraulic cylinder 101 is fixedly connected to the concave transmission frame 701, which is used to drive the lower pressure plate frame 7 to move downward.

[0053] Specifically, a plurality of limiting slides 501 are fixedly mounted on the outer side of the carrier substrate 5. The limiting slides 501 are all slidably connected to the inner wall of the liquid storage cylinder 4. An elastic protective sleeve 503 is sleeved on the outer side of the support spring 502. The support spring 502 is used to ensure the support effect of the carrier substrate 5 and to push the carrier substrate 5 back to its original position.

[0054] Specifically, a support railing 504 is fixedly installed between two adjacent limiting slides 501;

[0055] Furthermore, a conveying assembly is connected to the interior of the machine body 1 for conveying the rim body 6;

[0056] The conveying assembly includes a conveying frame 2 and an output frame 3. The conveying frame 2 and the output frame 3 are fixedly installed inside the body 1, and the installation positions of the conveying frame 2 and the output frame 3 are both located outside the liquid storage cylinder 4. The conveying frame 2 and the output frame 3 are respectively rotatably connected to the inside of the conveying frame 2 and the output frame 3 to perform conveying operations on the rim body 6;

[0057] The conveyor belt 201 and the output belt 301 are both existing conveyor belts, driven by separate motors;

[0058] The operation of the conveyor belt 201 can convey the batches of rim bodies 6 into the interior of the machine body 1. After the inspection is completed, the output rack 3 can be used to output the inspected rim bodies 6.

[0059] The top surfaces of the conveyor belt 201 and the output belt 301 are kept flush with the top surface of the supporting substrate 5. A side pushing cylinder 8 and a plurality of side limiting cylinders 9 are fixedly installed on the outside of the body 1. The piston end of the side pushing cylinder 8 is fixedly installed with an arc-shaped pushing frame 801, and the piston end of the side limiting cylinder 9 is fixedly installed with an arc-shaped limiting frame 901. Both are used to adjust the position of the conveyed rim body 6 so that the rim body 6 can be located directly above the supporting substrate 5.

[0060] Through the cooperation of the side pushing cylinder 8 and the multiple side limiting cylinders 9, when the conveyed rim body 6 is separated from the conveyor belt 201, the side limiting cylinder 9 and the arc limiting frame 901 can cooperate to push the rim body 6 to adjust the position. At the same time, when the inspection is completed, the side pushing cylinder 8 can drive the arc pushing frame 801 to move, and push the inspected rim body 6 to the output belt 301 to complete the automatic output operation.

[0061] Specifically, an annular limiting frame 10 is provided above the supporting substrate 5. The annular limiting frame 10 is fixedly installed inside the body 1. The annular limiting frame 10 is used to limit the rim body 6. The setting of the annular limiting frame 10 can prevent the rim body 6 from deflecting during transportation.

[0062] The output belt 301 is provided with a plurality of drainage holes for allowing the liquid on the surface of the rim body 6 to flow into the output frame 3. A reflux frame 11 is fixedly installed between the end of the output frame 3 and the liquid storage cylinder 4 for allowing the liquid to flow back into the liquid storage cylinder 4. A concave upper sealing plate 1101 is fixed above the reflux frame 11, and one-way valves 1102 are fixedly installed on both sides of the concave upper sealing plate 1101.

[0063] When the rim body 6 is pushed to the top of the output belt 301, the rim body 6 can be output as the output belt 301 runs. During the output process, the water attached to the outside of the rim body 6 flows back to the output rack 3, and then flows back to the inside of the liquid storage cylinder 4 through the return rack 11. On the one hand, it reduces the waste of water resources, and at the same time can maintain the working environment, reduce manual intervention, and improve the maintenance convenience of the equipment.

[0064] The inside of the output rack 3 is provided with an inclined surface, which can facilitate the flow of water into the return rack 11;

[0065] The one-way valve 1102 is an existing device used to prevent the water inside the liquid storage cylinder 4 from entering the reflux rack 11, and will not be described in detail here;

[0066] Furthermore, a positioning plate rack 12 is fixed inside the machine body 1, and a drying device 1201 is installed inside the positioning plate rack 12 for drying the rim body 6. The drying device 1201 is an existing air-drying device for air-drying the transported rim body 6.

[0067] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0068] The above is a detailed description of an embodiment of the present invention. However, the content is only a preferred embodiment of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the present invention.

Claims

1. A steel wheel rim air tightness detection device, comprising a body (1), characterized in that: A liquid storage cylinder (4) is fixedly installed inside the machine body (1), a supporting base plate (5) is slidably installed inside the liquid storage cylinder (4), a supporting spring (502) is fixedly installed between the supporting base plate (5) and the liquid storage cylinder (4) for supporting the supporting base plate (5), and a wheel rim body (6) to be detected is placed above the supporting base plate (5); A lower pressure disc frame (7) is installed in the interior of the machine body (1) so as to slide up and down. The installation position of the lower pressure disc frame (7) is kept coaxial with the supporting base plate (5) and is used to slide downward in a vertical direction to contact the rim body (6), thereby sealing the rim body (6) and pressing it into the interior of the liquid storage cylinder (4); A negative pressure device (702) is fixedly installed on the top surface of the lower pressure disc frame (7), and a connecting pipe (703) is connected between the negative pressure device (702) and the lower pressure disc frame (7). A pressure relief valve (704) is fixedly installed inside the lower pressure disc frame (7). A detection module is provided inside the liquid storage cylinder (4) for detecting bubbles emitted during the detection process.

2. The steel wheel rim air tightness testing device according to claim 1, characterized in that: A hydraulic cylinder (101) is provided above the lower pressure disc frame (7), and the hydraulic cylinder (101) is fixedly mounted inside the machine body (1). A concave transmission frame (701) is fixedly mounted on the top surface of the lower pressure disc frame (7), and a piston end of the hydraulic cylinder (101) is fixedly connected to the concave transmission frame (701) for driving the lower pressure disc frame (7) to move downward.

3. The steel wheel rim air tightness testing device according to claim 1, characterized in that: A plurality of limiting slides (501) are fixedly mounted on the outer side of the carrier base plate (5), and the limiting slides (501) are all slidably connected to the inner wall of the liquid storage cylinder (4). An elastic protective sleeve (503) is sleeved on the outer side of the support spring (502).

4. The steel wheel rim air tightness testing device according to claim 3, characterized in that: A supporting railing (504) is fixedly installed between two adjacent limiting slide plates (501).

5. The steel wheel rim air tightness testing device according to claim 1, characterized in that: A conveying assembly is connected to the interior of the machine body (1) and is used to carry out conveying operations on the rim body (6).

6. The steel wheel rim air tightness testing device according to claim 5, characterized in that: The conveying assembly comprises a conveying frame (2) and an output frame (3), the conveying frame (2) and the output frame (3) being fixedly mounted inside the machine body (1), and the installation positions of the conveying frame (2) and the output frame (3) are both located outside the liquid storage cylinder (4), and the conveying frame (2) and the output frame (3) are rotatably connected to the interior of the conveying frame (2) and the output frame (3) respectively, and are used for conveying the rim body (6).

7. The steel wheel rim air tightness testing device according to claim 6, characterized in that: The top surfaces of the conveyor belt (201) and the output belt (301) are kept flush with the top surface of the carrier substrate (5). A side pushing cylinder (8) and a plurality of side limiting cylinders (9) are fixedly installed on the outer side of the machine body (1). An arc-shaped pushing frame (801) is fixedly installed on the piston end of the side pushing cylinder (8), and an arc-shaped limiting frame (901) is fixedly installed on the piston end of the side limiting cylinder (9). Both are used to adjust the position of the conveyed rim body (6) so that the rim body (6) can be located directly above the carrier substrate (5).

8. The steel wheel rim air tightness testing device according to claim 7, characterized in that: An annular limiting frame (10) is provided above the supporting base plate (5). The annular limiting frame (10) is fixedly mounted inside the machine body (1). The annular limiting frame (10) is used to limit the position of the rim body (6).

9. The steel wheel rim air tightness testing device according to claim 6, characterized in that: The output belt (301) is provided with a plurality of drainage holes for allowing liquid on the surface of the rim body (6) to flow into the output rack (3). A return rack (11) is fixedly installed between the end of the output rack (3) and the liquid storage cylinder (4) for allowing liquid to flow back into the liquid storage cylinder (4). A concave upper sealing plate (1101) is fixed above the return rack (11), and one-way valves (1102) are fixedly installed on both sides of the concave upper sealing plate (1101).

10. The steel wheel rim air tightness testing device according to claim 1, characterized in that: A positioning plate frame (12) is fixed inside the machine body (1), and a drying device (1201) is installed inside the positioning plate frame (12) for drying the rim body (6).

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