Oil tank with self-detection function and use method thereof

Abstract

A fuel tank with a self-detection function comprises a fuel tank body, wherein a first detection device and a plurality of second detection devices are arranged in the fuel tank body, wherein the first detection device is located at one side of a hydraulic device, and the plurality of second detection devices are arranged at intervals between the hydraulic device and an oil inlet pipe; the first detection device comprises a bottom rod, a first intermediate rod and a plurality of first ball heads, wherein the bottom rod is connected to the inner wall of the fuel tank body, the first intermediate rod is connected to the bottom rod, and a plurality of first ball heads are arranged at intervals on the first intermediate rod along the axial direction of the hydraulic device; the second detection device comprises a bottom rod, a second intermediate rod and a plurality of second ball heads, wherein the bottom rod is connected to the inner wall of the fuel tank body, the first intermediate rod is connected to the bottom rod, and a plurality of second ball heads are arranged at intervals on the second intermediate rod. This design is convenient for detection, has a good detection effect, and has a stable structure.

Description

Technical Field

[0001] The present invention relates to the technical field of hydraulic equipment detection, and in particular to an oil tank with a self-detection function and a use method thereof. Background Art

[0002] At present, in the field of hydraulic equipment inspection, the inspection of the wear of equipment immersed in oil is a common inspection item. Since the wear condition usually requires the equipment to be disassembled for inspection, in order to avoid the equipment being shut down for too long for inspection, it is usually necessary to regularly check the bottom of the oil tank to determine whether there is abnormal wear based on whether there is a large amount of iron filings in the sludge at the bottom of the oil tank, or to regularly visually check whether the equipment has abnormal shaking or abnormal displacement. Both methods have defects: the first method cannot determine which specific equipment is worn, and all hydraulic equipment in the oil tank must be disassembled and inspected. In addition, the iron filings may not be generated by the wear of the equipment in the oil tank, but by the external hydraulic equipment and then circulated back to the oil tank through the pipeline, resulting in unnecessary time and labor costs; although the second method can more accurately determine the equipment with problems, in this case, the degree of wear of the equipment is usually quite serious, and it may be beyond repair and can only be replaced, resulting in higher costs. Summary of the invention

[0003] The purpose of the present invention is to overcome the defects and problems of the prior art that the detection of wear of hydraulic equipment is time-consuming and labor-intensive and the detection effect is poor, and to provide an oil tank with a self-detection function that is convenient to detect and has good detection effect, and a method for using the same.

[0004] To achieve the above objectives, the technical solution of the present invention is:

[0005] An oil tank with a self-detection function comprises an oil tank body, wherein a first detection device and a plurality of second detection devices are arranged in the oil tank body, wherein the first detection device is located on one side of a hydraulic device, and the plurality of second detection devices are arranged at intervals between the hydraulic device and an oil inlet pipe;

[0006] The first detection device comprises a bottom rod, a first intermediate rod and a plurality of first ball heads, the bottom rod is connected to the inner wall of the oil tank body, the first intermediate rod is connected to the bottom rod, and the plurality of first ball heads are arranged on the first intermediate rod at intervals along the axial direction of the hydraulic device;

[0007] The second detection device comprises a bottom rod, a second middle rod and a plurality of second ball heads, the bottom rod is connected to the inner wall of the fuel tank body, the first middle rod is connected to the bottom rod, and the plurality of second ball heads are arranged at intervals on the second middle rod;

[0008] The first ball head is used to collect iron filings generated by the hydraulic equipment;

[0009] The second ball head is used to collect iron filings coming from the oil inlet pipe.

[0010] The first ball head includes a first outer shell and a first inner sphere located inside the first outer shell. The outer circumference of the first outer shell is provided with a plurality of first receiving holes. The first inner sphere is made of a magnet material. The outer circumference of the first inner sphere is provided with two first connecting holes symmetrically along the center line. Both of the two first connecting holes are connected to the first receiving hole. The first inner sphere is sleeved on the first intermediate rod through the first connecting hole.

[0011] The first intermediate rod includes a plurality of first support rods and a first connecting rod. A first threaded hole is provided at one end of the first support rod, and a stud is provided at the other end. Studs are provided at both ends of the first connecting rod. Branch studs are connected to the middle parts of the first support rod and the first connecting rod. The first threaded hole matches the stud and the branch stud, and the first connecting hole matches the stud and the branch stud.

[0012] The second ball head includes a second outer shell and a second inner sphere located inside the second outer shell. The outer circumference of the second outer shell is provided with a plurality of second receiving holes. The second inner sphere is made of magnet material. The outer circumference of the second inner sphere is symmetrically provided with two second connecting holes along the center line. Both of the second connecting holes are connected to the second receiving holes.

[0013] The second intermediate rod includes a plurality of second support rods and a second connecting rod. A second threaded hole is provided at one end of the second support rod, and a stud is provided at the other end. Studs are provided at both ends of the second connecting rod. Branch studs are connected to the middle parts of the second support rod and the second connecting rod. The second threaded hole matches the stud and the branch stud, and the second connecting hole matches the stud and the branch stud.

[0014] The bottom rod comprises a bottom rod body and a vacuum suction cup, wherein the vacuum suction cup is connected to the inner wall of the oil tank body, the bottom end of the bottom rod body is connected to the vacuum suction cup, the top end is connected to a stud, and the middle part of the bottom rod body is connected to a branch stud.

[0015] A method for using a fuel tank with a self-detection function, the method comprising the following steps:

[0016] During the operation of the hydraulic equipment, the first detection device and the second detection device are regularly checked for iron chips, and the iron chip value obtained by the first detection device is compared with the iron chip value during normal operation, and the iron chip value obtained by the second detection device is compared with the iron chip value during normal operation. If both iron chip values ​​obtained do not exceed the iron chip value during normal operation, it means that there is no abnormal wear in the oil tank and no maintenance is required. The first detection device and the second detection device should be replaced. If the iron chip value obtained by the first detection device is greater than the iron chip value during normal operation, it means that the iron chips come from the hydraulic equipment. The hydraulic equipment should be disassembled, inspected and repaired, and the first detection device and the second detection device should be replaced. If the iron chip value obtained by the second detection device is greater than the iron chip value during normal operation, it means that the iron chips come from the oil inlet pipe. The oil should be replaced, and other equipment outside the oil tank should be repaired, and the first detection device and the second detection device should be replaced.

[0017] The specific steps of the method of use are: open the fuel tank cap, observe the iron filings values ​​collected by the first ball head and the second ball head on the first detection device and the second detection device, take photos and keep them, and then compare the iron filings values ​​of the first ball head and the second ball head in the photo with the iron filings values ​​of the first ball head and the second ball head in the photo during normal operation.

[0018] There are three first ball heads, which are respectively located at the transmission shaft, the hydraulic pump, and the hydraulic valve block. The iron filings values ​​obtained at the transmission shaft, the hydraulic pump, and the hydraulic valve block are compared with each other. If the iron filings value on one of the first ball heads is higher than the iron filings values ​​on the other two first ball heads, it means that the iron filings come from the components corresponding to the first ball head, and the components at this location are disassembled, inspected, and repaired.

[0019] The steps for replacing the first detection device and the second detection device are specifically as follows:

[0020] First, take out the first detection device and the second detection device, remove the first ball head and the second ball head and wash them under high pressure to clean the accumulated iron filings, then install the first ball head and the second ball head on the first detection device and the second detection device respectively, and then place the first detection device and the second detection device in the fuel tank body respectively.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. In the oil tank with self-detection function and the use method thereof of the present invention, the first detection device and the second detection device are respectively provided to detect the iron filings in the oil tank, so as to conveniently distinguish whether the iron filings come from hydraulic equipment or other equipment. The iron filings in the oil tank are collected by providing a plurality of first ball heads and second ball heads. The degree of wear of the equipment is obtained by observing the retention of the iron filings on the first ball heads and the second ball heads. The equipment with excessive wear is repaired and replaced, and the detection effect is good. Therefore, the present invention is convenient for detection and has good detection effect.

[0023] 2. In the oil tank with self-detection function and the use method thereof of the present invention, a plurality of studs and branch studs are provided so that the first support rod and the first connecting rod can be spliced ​​with each other. After splicing, the first ball head is placed on the studs of the first support rod and the first connecting rod and tightened. At the same time, the second support rod and the second connecting rod can be spliced ​​with each other. After splicing, the second ball head is placed on the studs of the second support rod or the second connecting rod and tightened. Through the splicing method, the positions of the first ball head and the second ball head can be easily adjusted to make them closer to the inspected equipment, and the detection effect is better. Therefore, the detection effect of the present invention is good.

[0024] 3. In the oil tank with self-detection function and the use method thereof of the present invention, the inner sphere is set to be a magnetic material, and the iron filings in the oil are adsorbed by magnetic force. By setting a receiving hole on the first ball head and the second ball head, the iron filings fall into the receiving hole after being adsorbed and will not be carried away by the flowing oil, thereby avoiding the iron filings flowing away and causing errors in the detection results. Therefore, the present invention has a stable structure and good detection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the present invention.

[0026] Figure 2 It is a schematic structural diagram of the first detection device in the present invention.

[0027] Figure 3 It is a schematic structural diagram of the second detection device in the present invention.

[0028] Figure 4 It is a structural schematic diagram of the bottom rod of the present invention.

[0029] Figure 5 It is an exploded schematic diagram of the first intermediate rod in the present invention.

[0030] Figure 6 It is an exploded schematic diagram of the second intermediate rod in the present invention.

[0031] Figure 7 It is a cross-sectional schematic diagram of the first ball head in the present invention.

[0032] Figure 8 It is a cross-sectional schematic diagram of the second ball head in the present invention.

[0033] Fig. 9 The present invention is a flowchart of a method for using an oil tank with a self-detection function.

[0034] In the figure: oil tank body 1, first detection device 2, first intermediate rod 21, first support rod 211, first connecting rod 212, first threaded hole 213, first ball head 22, first outer shell 221, first inner sphere 222, first receiving hole 223, first connecting hole 224, second detection device 3, second intermediate rod 31, second support rod 311, second connecting rod 312, second threaded hole 313, second ball head 32, second outer shell 321, second inner sphere 322, second receiving hole 323, second connecting hole 324, bottom rod 4, bottom rod body 41, vacuum suction cup 42, oil inlet pipe 5, hydraulic equipment 6, transmission shaft 61, hydraulic pump 62, hydraulic valve block 63, stud 7, branch stud 8. DETAILED DESCRIPTION

[0035] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0036] See also Figures 1 to 9 , an oil tank with a self-detection function, comprising an oil tank body 1, wherein a first detection device 2 and a plurality of second detection devices 3 are arranged in the oil tank body 1, wherein the first detection device 2 is located at one side of a hydraulic device 6, and a plurality of second detection devices 3 are arranged at intervals between the hydraulic device 6 and an oil inlet pipe 5;

[0037] The first detection device 2 includes a bottom rod 4, a first intermediate rod 21 and a plurality of first ball heads 22, the bottom rod 4 is connected to the inner wall of the oil tank body 1, the first intermediate rod 21 is connected to the bottom rod 4, and the plurality of first ball heads 22 are arranged on the first intermediate rod 21 at intervals along the axial direction of the hydraulic device 6;

[0038] The second detection device 3 includes a bottom rod 4, a second intermediate rod 31 and a plurality of second ball heads 32, the bottom rod 4 is connected to the inner wall of the fuel tank body 1, the first intermediate rod 21 is connected to the bottom rod 4, and a plurality of second ball heads 32 are arranged at intervals on the second intermediate rod 31;

[0039] The first ball head 22 is used to collect iron filings generated by the hydraulic equipment 6;

[0040] The second ball head 32 is used to collect iron filings coming from the oil inlet pipe 5 .

[0041] The first ball head 22 includes a first outer shell 221 and a first inner sphere 222 located inside the first outer shell 221. The outer circumference of the first outer shell 221 is provided with a plurality of first receiving holes 223. The first inner sphere 222 is made of a magnet material. The outer circumference of the first inner sphere 222 is symmetrically provided with two first connecting holes 224 along the center line. Both of the two first connecting holes 224 are connected to the first receiving holes 223. The first inner sphere 222 is sleeved on the first intermediate rod 21 through the first connecting holes 224.

[0042] The first intermediate rod 21 includes a plurality of first support rods 211 and a first connecting rod 212. A first threaded hole 213 is provided at one end of the first support rod 211, and a stud 7 is provided at the other end. Studs 7 are provided at both ends of the first connecting rod 212. Branch studs 8 are connected to the middle parts of the first support rod 211 and the first connecting rod 212. The first threaded hole 213 matches the stud 7 and the branch stud 8. The first connecting hole 224 matches the stud 7 and the branch stud 8.

[0043] The second ball head 32 includes a second outer shell 321 and a second inner sphere 322 located inside the second outer shell 321. The outer circumference of the second outer shell 321 is provided with a plurality of second receiving holes 323. The second inner sphere 322 is made of magnet material. The outer circumference of the second inner sphere 322 is symmetrically provided with two second connecting holes 324 along the center line. Both of the two second connecting holes 324 are connected to the second receiving holes 323.

[0044] The second intermediate rod 31 includes a plurality of second support rods 311 and a second connecting rod 312. A second threaded hole 313 is provided at one end of the second support rod 311, and a stud 7 is provided at the other end. Studs 7 are provided at both ends of the second connecting rod 312. Branch studs 8 are connected to the middle parts of the second support rod 311 and the second connecting rod 312. The second threaded hole 313 matches the stud 7 and the branch stud 8. The second connecting hole 324 matches the stud 7 and the branch stud 8.

[0045] The bottom rod 4 includes a bottom rod body 41 and a vacuum suction cup 42. The vacuum suction cup 42 is connected to the inner wall of the oil tank body 1. The bottom end of the bottom rod body 41 is connected to the vacuum suction cup 42, the top end is connected to a stud 7, and the middle part of the bottom rod body 41 is connected to a branch stud 8.

[0046] A method for using a fuel tank with a self-detection function, the method comprising the following steps:

[0047] During the operation of the hydraulic equipment 6, the iron chips of the first detection device 2 and the second detection device 3 are checked regularly, and the iron chip value obtained by the first detection device 2 is compared with the iron chip value during normal operation, and the iron chip value obtained by the second detection device 3 is compared with the iron chip value during normal operation. If the two obtained iron chip values ​​do not exceed the iron chip value during normal operation, it means that there is no abnormal wear in the oil tank and no maintenance is required. The first detection device 2 and the second detection device 3 are replaced; if the iron chip value obtained by the first detection device 2 is greater than the iron chip value during normal operation, it means that the iron chips come from the hydraulic equipment 6. The hydraulic equipment 6 is disassembled for inspection and repair, and the first detection device 2 and the second detection device 3 are replaced; if the iron chip value obtained by the second detection device 3 is greater than the iron chip value during normal operation, it means that the iron chips come from the oil inlet pipe 5. The oil is replaced, and other equipment outside the oil tank is repaired, and the first detection device 2 and the second detection device 3 are replaced.

[0048] The specific steps of the method of use are: opening the fuel tank cap, observing the iron filings values ​​collected by the first ball head 22 and the second ball head 32 on the first detection device 2 and the second detection device 3, taking photos for preservation, and then comparing the iron filings values ​​of the first ball head 22 and the second ball head 32 in the photos with the iron filings values ​​of the first ball head 22 and the second ball head 32 in the photos during normal operation.

[0049] There are three first ball heads 22, which are respectively located at the transmission shaft 61, the hydraulic pump 62, and the hydraulic valve block 63. The iron filings values ​​obtained at the transmission shaft 61, the hydraulic pump 62, and the hydraulic valve block 63 are compared with each other. If the iron filings value on one of the first ball heads 22 is higher than the iron filings values ​​on the other two first ball heads 22, it means that the iron filings come from the components corresponding to the first ball head 22, and the components at this location are disassembled, inspected, and repaired.

[0050] The specific steps of replacing the first detection device 2 and the second detection device 3 are:

[0051] First, take out the first detection device 2 and the second detection device 3, remove the first ball head 22 and the second ball head 32 and perform high-pressure washing to clean the accumulated iron filings, then install the first ball head 22 and the second ball head 32 on the first detection device 2 and the second detection device 3 respectively, and then place the first detection device 2 and the second detection device 3 in the fuel tank body 1 respectively.

[0052] The principle of the present invention is described as follows:

[0053] After the first ball head 22, the first intermediate rod 21, and the bottom rod 4 are assembled through the self-provided threaded interface, they are fixed in the oil tank body 1 through the vacuum suction cup 42 at the bottom of the bottom rod 4, and the three first ball heads 22 are respectively aligned with the transmission shaft 61, the hydraulic pump 62, and the hydraulic valve block 63. At the same time, after the second ball head 32, the second intermediate rod 31, and the bottom rod 4 are assembled through the self-provided threaded interface, they are fixed in sequence at intervals on the side of the oil tank body 1 close to the oil inlet pipe 5 through the vacuum suction cup 42 at the bottom of the bottom rod 4, and then the oil tank cover is closed. After one month, the oil tank cover is opened to observe the collection of iron filings on the first ball head 22 and the second ball head 32, and the equipment that needs maintenance is repaired and replaced, the first detection device 2 and the second detection device 3 are removed, the first ball head 22 and the second ball head 32 are disassembled and high-pressure flushing is performed to remove the accumulated iron filings, and the first ball head 22 and the second ball head 32 are installed after cleaning, and the first detection device 2 and the second detection device 3 are placed in their original positions, and then the oil tank cover is closed, and the oil tank cover is opened again after one month for inspection.

[0054] Embodiment 1:

[0055] See also Figures 1 to 6 , an oil tank with a self-detection function, comprising an oil tank body 1, wherein a first detection device 2 and a plurality of second detection devices 3 are arranged in the oil tank body 1, wherein the first detection device 2 is located at one side of a hydraulic device 6, and a plurality of second detection devices 3 are arranged at intervals between the hydraulic device 6 and an oil inlet pipe 5;

[0056] The first detection device 2 includes a bottom rod 4, a first intermediate rod 21 and a plurality of first ball heads 22, the bottom rod 4 is connected to the inner wall of the oil tank body 1, the first intermediate rod 21 is connected to the bottom rod 4, and the plurality of first ball heads 22 are arranged on the first intermediate rod 21 at intervals along the axial direction of the hydraulic device 6;

[0057] The second detection device 3 includes a bottom rod 4, a second intermediate rod 31 and a plurality of second ball heads 32, the bottom rod 4 is connected to the inner wall of the fuel tank body 1, the first intermediate rod 21 is connected to the bottom rod 4, and a plurality of second ball heads 32 are arranged at intervals on the second intermediate rod 31;

[0058] The first ball head 22 is used to collect iron filings generated by the hydraulic equipment 6;

[0059] The second ball head 32 is used to collect iron filings coming from the oil inlet pipe 5 .

[0060] The first intermediate rod 21 includes a plurality of first support rods 211 and a first connecting rod 212. A first threaded hole 213 is provided at one end of the first support rod 211, and a stud 7 is provided at the other end. Studs 7 are provided at both ends of the first connecting rod 212. Branch studs 8 are connected to the middle parts of the first support rod 211 and the first connecting rod 212. The first threaded hole 213 matches the studs 7 and the branch studs 8.

[0061] The second intermediate rod 31 includes a plurality of second support rods 311 and a second connecting rod 312. A second threaded hole 313 is provided at one end of the second support rod 311, and a stud 7 is provided at the other end. Studs 7 are provided at both ends of the second connecting rod 312. Branch studs 8 are connected to the middle parts of the second support rod 311 and the second connecting rod 312. The second threaded hole 313 matches the studs 7 and the branch studs 8.

[0062] The bottom rod 4 includes a bottom rod body 41 and a vacuum suction cup 42. The vacuum suction cup 42 is connected to the inner wall of the oil tank body 1. The bottom end of the bottom rod body 41 is connected to the vacuum suction cup 42, the top end is connected to a stud 7, and the middle part of the bottom rod body 41 is connected to a branch stud 8.

[0063] A method for using a fuel tank with a self-detection function, the method comprising the following steps:

[0064] During the operation of the hydraulic equipment 6, the iron chips of the first detection device 2 and the second detection device 3 are checked regularly, and the iron chip value obtained by the first detection device 2 is compared with the iron chip value during normal operation, and the iron chip value obtained by the second detection device 3 is compared with the iron chip value during normal operation. If the two obtained iron chip values ​​do not exceed the iron chip value during normal operation, it means that there is no abnormal wear in the oil tank and no maintenance is required. The first detection device 2 and the second detection device 3 are replaced; if the iron chip value obtained by the first detection device 2 is greater than the iron chip value during normal operation, it means that the iron chips come from the hydraulic equipment 6. The hydraulic equipment 6 is disassembled for inspection and repair, and the first detection device 2 and the second detection device 3 are replaced; if the iron chip value obtained by the second detection device 3 is greater than the iron chip value during normal operation, it means that the iron chips come from the oil inlet pipe 5. The oil is replaced, and other equipment outside the oil tank is repaired, and the first detection device 2 and the second detection device 3 are replaced.

[0065] The specific steps of the method of use are: opening the fuel tank cap, observing the iron filings values ​​collected by the first ball head 22 and the second ball head 32 on the first detection device 2 and the second detection device 3, taking photos for preservation, and then comparing the iron filings values ​​of the first ball head 22 and the second ball head 32 in the photos with the iron filings values ​​of the first ball head 22 and the second ball head 32 in the photos during normal operation.

[0066] There are three first ball heads 22, which are respectively located at the transmission shaft 61, the hydraulic pump 62, and the hydraulic valve block 63. The iron filings values ​​obtained at the transmission shaft 61, the hydraulic pump 62, and the hydraulic valve block 63 are compared with each other. If the iron filings value on one of the first ball heads 22 is higher than the iron filings values ​​on the other two first ball heads 22, it means that the iron filings come from the components corresponding to the first ball head 22, and the components at this location are disassembled, inspected, and repaired.

[0067] The specific steps of replacing the first detection device 2 and the second detection device 3 are:

[0068] First, take out the first detection device 2 and the second detection device 3, remove the first ball head 22 and the second ball head 32 and perform high-pressure washing to clean the accumulated iron filings, then install the first ball head 22 and the second ball head 32 on the first detection device 2 and the second detection device 3 respectively, and then place the first detection device 2 and the second detection device 3 in the fuel tank body 1 respectively.

[0069] Embodiment 2:

[0070] The basic content is the same as that of Example 1, except that:

[0071] See also Figures 7 and 8 The first ball head 22 includes a first outer shell 221 and a first inner sphere 222 located inside the first outer shell 221. The outer circumference of the first outer shell 221 is provided with a plurality of first receiving holes 223. The first inner sphere 222 is made of a magnet material. The outer circumference of the first inner sphere 222 is symmetrically provided with two first connecting holes 224 along the center line. Both of the two first connecting holes 224 are connected to the first receiving holes 223. The first inner sphere 222 is sleeved on the first intermediate rod 21 through the first connecting hole 224. The first connecting hole 224 matches the stud 7 and the branch stud 8. The second ball head 32 includes a second outer shell 321 and a second inner sphere 322 located inside the second outer shell 321. The outer circumference of the second outer shell 321 is provided with a plurality of second receiving holes 323. The second inner sphere 322 is made of magnet material. The outer circumference of the second inner sphere 322 is symmetrically provided with two second connecting holes 324 along the center line. Both of the two second connecting holes 324 are connected to the second receiving hole 323. The second connecting hole 324 matches the stud 7 and the branch stud 8.

Claims

1. A fuel tank with a self-detection function, characterized in that: The invention comprises an oil tank body (1), wherein a first detection device (2) and a plurality of second detection devices (3) are arranged in the oil tank body (1), wherein the first detection device (2) is located on one side of a hydraulic device (6), and the plurality of second detection devices (3) are arranged at intervals between the hydraulic device (6) and an oil inlet pipe (5); The first detection device (2) comprises a bottom rod (4), a first intermediate rod (21) and three first ball heads (22), the bottom rod (4) being connected to the inner wall of the oil tank body (1), the first intermediate rod (21) being connected to the bottom rod (4), and the three first ball heads (22) being arranged on the first intermediate rod (21) at intervals along the axial direction of the hydraulic device (6); The hydraulic equipment (6) comprises a transmission shaft (61), a hydraulic pump (62), and a hydraulic valve block (63); the three first ball heads (22) are respectively located at the transmission shaft (61), the hydraulic pump (62), and the hydraulic valve block (63); The second detection device (3) comprises a bottom rod (4), a second intermediate rod (31) and a plurality of second ball heads (32); the bottom rod (4) is connected to the inner wall of the oil tank body (1); the first intermediate rod (21) is connected to the bottom rod (4); and the plurality of second ball heads (32) are arranged at intervals on the second intermediate rod (31); The first ball head (22) comprises a first outer shell (221) and a first inner sphere (222) located inside the first outer shell (221); a plurality of first receiving holes (223) are provided on the outer circumference of the first outer shell (221); the first inner sphere (222) is made of a magnetic material; two first connecting holes (224) are symmetrically provided on the outer circumference of the first inner sphere (222) along a center line; the two first connecting holes (224) are both connected to the first receiving holes (223); the first inner sphere (222) is sleeved on the first intermediate rod (21) through the first connecting holes (224); The second ball head (32) comprises a second outer shell (321) and a second inner sphere (322) located inside the second outer shell (321); the outer circumferential surface of the second outer shell (321) is provided with a plurality of second receiving holes (323); the second inner sphere (322) is made of a magnetic material; the outer circumferential surface of the second inner sphere (322) is provided with two second connecting holes (324) symmetrically along the center line; the two second connecting holes (324) are both connected to the second receiving holes (323); The first ball head (22) is used to collect iron filings generated by the transmission shaft (61), the hydraulic pump (62), and the hydraulic valve block (63); The second ball head (32) is used to collect iron filings coming from the oil inlet pipe (5).

2. The fuel tank with self-detection function according to claim 1, characterized in that: The first intermediate rod (21) comprises a plurality of first support rods (211) and a first connecting rod (212); a first threaded hole (213) is provided at one end of the first support rod (211), and a stud (7) is provided at the other end; studs (7) are provided at both ends of the first connecting rod (212); branch studs (8) are connected to the middle parts of the first support rod (211) and the first connecting rod (212); the first threaded hole (213) matches the stud (7) and the branch stud (8); and the first connecting hole (224) matches the stud (7) and the branch stud (8).

3. The fuel tank with self-detection function according to claim 1, characterized in that: The second intermediate rod (31) includes a plurality of second support rods (311) and a second connecting rod (312); a second threaded hole (313) is provided at one end of the second support rod (311), and a stud (7) is provided at the other end; studs (7) are provided at both ends of the second connecting rod (312); branch studs (8) are connected to the middle parts of the second support rod (311) and the second connecting rod (312); the second threaded hole (313) matches the stud (7) and the branch stud (8); and the second connecting hole (324) matches the stud (7) and the branch stud (8).

4. The fuel tank with self-detection function according to claim 1, characterized in that: The bottom rod (4) comprises a bottom rod body (41) and a vacuum suction cup (42), wherein the vacuum suction cup (42) is connected to the inner wall of the oil tank body (1), the bottom end of the bottom rod body (41) is connected to the vacuum suction cup (42), the top end is connected to a stud (7), and the middle part of the bottom rod body (41) is connected to a branch stud (8).

5. A method for using the fuel tank with self-detection function according to claim 1, characterized in that: The method of use comprises the following steps: During the operation of the hydraulic equipment (6), the iron chips of the first detection device (2) and the second detection device (3) are regularly checked, and the iron chip value obtained by the first detection device (2) is compared with the iron chip value during normal operation, and the iron chip value obtained by the second detection device (3) is compared with the iron chip value during normal operation. If both obtained iron chip values ​​do not exceed the iron chip value during normal operation, it means that there is no abnormal wear in the oil tank, no maintenance is required, and the first detection device (2) and the second detection device (3) are replaced; if the iron chip value obtained by the first detection device (2) is greater than the iron chip value during normal operation, it means that the iron chip comes from the hydraulic equipment (6), the hydraulic equipment (6) is dismantled, inspected and repaired, and the first detection device (2) and the second detection device (3) are replaced; if the iron chip value obtained by the second detection device (3) is greater than the iron chip value during normal operation, it means that the iron chip comes from the oil inlet pipe (5), the oil is replaced, and other equipment outside the oil tank is repaired, and the first detection device (2) and the second detection device (3) are replaced.

6. The method for using the fuel tank with self-detection function according to claim 5, characterized in that: The specific steps of the method of use are: opening the fuel tank cap, observing the iron filings values ​​collected by the first ball head (22) and the second ball head (32) on the first detection device (2) and the second detection device (3), taking photos for preservation, and then comparing the iron filings values ​​of the first ball head (22) and the second ball head (32) in the photos with the iron filings values ​​of the first ball head (22) and the second ball head (32) in the photos during normal operation.

7. The method for using the fuel tank with self-detection function according to claim 5, characterized in that: The number of the first ball heads (22) is three, and the three first ball heads (22) are respectively located at the transmission shaft (61), the hydraulic pump (62), and the hydraulic valve block (63). The iron filings values ​​obtained at the transmission shaft (61), the hydraulic pump (62), and the hydraulic valve block (63) are compared with each other. If the iron filings value on one of the first ball heads (22) is higher than the iron filings values ​​on the other two first ball heads (22), it means that the iron filings come from the component corresponding to the first ball head (22), and the component at the location is disassembled for inspection and repair.

8. The method for using the fuel tank with self-detection function according to claim 5, characterized in that: The steps for replacing the first detection device (2) and the second detection device (3) are specifically as follows: Firstly, the first detection device (2) and the second detection device (3) are taken out, the first ball head (22) and the second ball head (32) are disassembled and washed with high pressure to clean the accumulated iron filings, and then the first ball head (22) and the second ball head (32) are respectively installed on the first detection device (2) and the second detection device (3), and then the first detection device (2) and the second detection device (3) are respectively placed in the oil tank body (1).

Images