Oil leakage detecting and filling device of hydraulic servo motor

Abstract

The invention discloses an oil leakage detecting and filling device for a hydraulic servo motor, and relates to the technical field of hydraulic servo motor filling equipment, and the oil leakage detecting and filling device is characterized by comprising an oil tank consisting of a cooling cavity and an oil filling cavity, a control console and a hydraulic pump which are arranged at the top of the oil tank, and further comprising an oil leakage detecting and filling device arranged beside the control console, the detection box is used for oil circulation and oil leakage detection of the hydraulic servo motor; according to detection of oil leakage of the motor, the influence of different acting forces generated in the oil circulation process on the detection assembly during oil injection and oil discharge is mainly used as a judgment basis, and the different acting forces of oil injection and oil discharge are used for driving the detection assembly to change the power connection position of the lamp body; through presentation of the turn-on position and the interval of the lamp body, the oil leakage and the oil leakage degree in the motor are directly judged, the judgment is more visual, the judgment speed is high, and the efficiency is high.

Description

Technical Field

[0001] The present invention relates to the technical field of hydraulic servo motor filling equipment, and more specifically, it relates to an oil leakage detection and filling device for a hydraulic servo motor. Background Art

[0002] A hydraulic servo motor is a device that uses hydraulic technology to control motion. It mainly controls the rotation and output torque of the motor through the pressure and flow rate of hydraulic oil to achieve high-precision and high-response motion control. Compared with electric motors, hydraulic servo motors can provide greater power output under the same volume and are widely used in industrial automation, robotics, aerospace and other fields;

[0003] According to the driving form, hydraulic servo motors are mainly divided into axial piston motors, radial piston motors, gear motors and vane motors. For piston-driven motors, during long-term working motion, affected by factors such as pressure and friction, it is very easy to cause aging, cracking of the inner wall of the piston cavity and loosening of the connecting parts, resulting in oil leakage of the motor. Therefore, during the operation of the motor, it is particularly important to detect the liquid leakage of the motor;

[0004] At present, for the detection of liquid leakage of motors, it is mainly based on the form of oil pressure detection, which includes oil pressure detection gauges independently installed on the injection pipe and the outlet pipe, and the determination of liquid leakage is carried out through the values presented on the gauge body. It also includes sensing devices for oil pressure / flow rate arranged in the injection pipe and the outlet pipe, and the determination of liquid leakage is carried out through the values presented by the sensing devices on the control device. The presentation methods of oil gauges or sensing detections are relatively limited. It is necessary for people to judge by collecting the data of the oil gauge or according to the data presented by the sensing device on the control device. At the same time, for the determination of the degree of oil leakage, the calculation of the pressure difference is also required. Moreover, for the collection of data, people need to be present at the equipment, resulting in a cumbersome determination process and affecting the determination speed and efficiency.

[0005] Therefore, in order to solve the above technical problems, the present application proposes an oil leakage detection and filling device for a hydraulic servo motor. Summary of the Invention

[0006] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide an oil leakage detection and filling device for a hydraulic servo motor.

[0007] To achieve the above object, the present invention provides the following technical solution: An oil leakage detection and filling device for a hydraulic servo motor, comprising an oil tank composed of a cooling chamber and an oil filling chamber, a control console and a hydraulic pump arranged on the top of the oil tank, and further comprising a detection box arranged beside the control console for oil fluid circulation and oil leakage detection of the hydraulic servo motor; wherein, a storage battery is arranged on one side of the detection box, and an oil injection pipe, an oil outlet pipe and detection components are arranged inside the detection box. The detection components are respectively arranged on both sides of the oil injection pipe and the oil outlet pipe, and are used for detecting the acting force generated by the oil fluid circulation inside the oil injection pipe and the oil outlet pipe, and can move adaptively according to the magnitude of the acting force. One end of the oil injection pipe and the oil outlet pipe are respectively communicated with an oil pipe external interface b and an oil pipe external interface a arranged on the detection box, and the other end of the oil injection pipe and the oil outlet pipe are respectively communicated with the oil outlet port of the hydraulic pump and the cooling chamber. Conductive rod components connected in parallel with the negative connection line of the storage battery through a circuit are arranged on both groups of the detection components. Two warning areas composed of multiple groups of lamp bodies are arranged on the end faces of the detection box corresponding to the two groups of the detection components. Two groups of wire dividing devices are respectively arranged on the end faces of the detection box corresponding to the two groups of the detection components. The wire dividing devices are connected with the negative connection terminals of the multiple groups of lamp bodies on the two warning areas through a circuit, and are electrically connected with the two groups of conductive rod components through contact. The positive connection terminals of the multiple groups of lamp bodies on the two warning areas are connected in parallel to the positive connection line of the storage battery.

[0008] Preferably, the multiple groups of lamp bodies on the two warning areas are arranged horizontally and have the same number; the colors between the multiple groups of lamp bodies in each warning area of the two warning areas are different, and the lamp bodies of different colors in the two warning areas are distributed in a mirror image form.

[0009] Preferably, the detection component comprises an elastic member, a limiting member and a detecting member; wherein, the elastic member comprises a fixed disk, a spring and a moving disk. The fixed disk is connected to the inner wall of the detection box, and the spring is arranged between the fixed disk 901 and the moving disk; the limiting member comprises two groups of limiting sliding seats arranged at the top and bottom of the moving disk and fitted with strip-shaped sliding grooves arranged at the top and bottom of the detection box; the detecting member comprises a spherical seat and a support rod connected between the spherical seat and the moving disk.

[0010] Preferably, communication ports into which the spherical seats can be partially embedded are symmetrically arranged on the oil injection pipe and the oil outlet pipe, and a sealing gasket is arranged at the communication ports.

[0011] Preferably, the conductive rod component comprises a connecting seat arranged at the side end of the moving disk and having a hollow structure, and a metal rod extending from the center of the inside of the connecting seat to the wire dividing device. A circuit connection end is arranged on the part of the metal rod embedded in the connecting seat.

[0012] Preferably, the wire splitting device includes a wire splitting base, a plurality of disk bases arranged at one end of the wire splitting base to provide fixation for the wire splitting base and independent penetration for each lamp body circuit, and a plurality of metal sheets arranged at the other end of the wire splitting base and connected to the circuits penetrating each lamp body.

[0013] Preferably, the number of the disk bases, metal sheets corresponds to the number of lamp bodies in the warning area, and the positions of the plurality of metal sheets correspond to and contact the outer ends of the metal rods.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. For the detection of motor oil leakage in the present invention, it is mainly based on the influence of different acting forces generated during the oil flow process during oil injection and oil discharge on the detection component as the judgment basis. Different acting forces during oil injection and oil discharge drive the detection component to move to different positions. At different positions, the power connection position affects the opening and closing of the corresponding lamp bodies on the oil injection and oil discharge warning areas. According to the comparison of the opening positions and intervals of the lamp bodies on the oil injection and oil discharge warning areas, the internal oil leakage and the degree of oil leakage of the motor can be directly judged, which is more intuitive, with a fast judgment speed and high efficiency, effectively simplifying the judgment forms of traditional meters and sensing devices.

[0016] 2. In the present invention, the number of lamp bodies on the two warning areas can be set according to the hydraulic pump speed regulation level. With the cooperation of the acting forces generated by the oil under different speed regulation levels and the spring adaptability, the hydraulic pump speed regulation level can correspond to the lamp bodies on the oil injection warning area. In this way, the current oil injection state of the hydraulic pump can also be directly judged more intuitively. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention, form a part of this application, and the schematic embodiments of the present invention and their descriptions are used to explain the present invention, and do not constitute an improper limitation to the present invention. In the drawings:

[0018] Figure 1 is the overall structure diagram of the detection and filling device in the present invention;

[0019] Figure 2 is the overall disassembly diagram of the detection box in the present invention;

[0020] Figure 3 is the connection diagram of the detection component and the oil pipe in the present invention;

[0021] Figure 4 is in the present invention Figure 3 enlarged view of part A;

[0022] Figure 5 is the structure diagram of the oil pipe body in the present invention;

[0023] Figure 6 It is the connection diagram of the wire splitting device in the present invention;

[0024] Figure 7 It is the positional relationship diagram between the lamp body and the wire splitting device in the present invention;

[0025] Figure 8 In the present invention Figure 7 The enlarged view at position B;

[0026] Figure 9 It is the overall structure diagram of the detection component in the present invention;

[0027] Figure 10 It is the overall disassembly diagram of the detection component in the present invention;

[0028] Figure 11 It is the control flow chart of the lamp body in the present invention.

[0029] 1. Cooling chamber;

[0030] 2. Oil injection chamber;

[0031] 3. Control console;

[0032] 4. Hydraulic pump;

[0033] 5. Detection box; 501. Outer oil pipe interface a; 502. Outer oil pipe interface b; 503. Lamp body;

[0034] 6. Battery;

[0035] 7. Oil injection pipe;

[0036] 8. Oil outlet pipe;

[0037] 9. Detection component; 901. Fixed disk; 902. Spring; 903. Moving disk; 904. Connection seat; 905. Metal rod; 906. Spherical seat; 907. Limit sliding seat;

[0038] 10. Communication port;

[0039] 11. Sealing gasket;

[0040] 12. Wire splitting device; 1201. Wire splitting seat; 1202. Disk seat; 1203. Metal sheet. Detailed implementation manner

[0041] As Figures 1 - 11 shown, the present invention provides an oil leakage detection and filling device for a hydraulic servo motor, including an oil tank composed of a cooling chamber 1 and an oil injection chamber 2, a control console 3 and a hydraulic pump 4 arranged on the top of the oil tank, and further including a detection box 5 arranged beside the control console 3 for oil fluid circulation and oil leakage detection of the hydraulic servo motor;

[0042] The detection box 5 mainly detects the leakage and the degree of leakage of the hydraulic servo motor by utilizing the physical properties during the oil injection and oil return processes, taking advantage of the different pressure differences when the hydraulic servo motor leaks, and analyzing the opening and closing states of the corresponding lamp body 503 and the symmetry of the opening and closing of the lamp body 503 during oil injection and oil return.

[0043] The structure of the above-mentioned detection box 5 is as Figure 2 , Figure 3 shown, and specifically includes the following. A battery 6 is provided on one side, and an oil injection pipe 7, an oil outlet pipe 8 are provided inside, and detection components 9 are respectively provided on both sides of the oil injection pipe 7 and the oil outlet pipe 8, which are used to detect the acting force generated by the oil flow inside the oil injection pipe 7 and the oil outlet pipe 8, and can move adaptively according to the magnitude of the acting force.

[0044] Among them, as shown in Figure 1 , Figure 2 and Figure 3 , one end of the oil injection pipe 7 and the oil outlet pipe 8 are respectively communicated with the oil pipe external interface b502 and the oil pipe external interface a501 provided on the detection box 5, and the other ends of the oil injection pipe 7 and the oil outlet pipe 8 are respectively communicated with the oil outlet port of the hydraulic pump 4 and the cooling chamber 1. During the oil flow process, by driving the piston movement of the hydraulic servo motor, the driving of the hydraulic servo motor is achieved.

[0045] In order to detect the leakage of the hydraulic servo motor during the driving process of the hydraulic servo motor, as shown in Figure 3 , Figure 11 , through two groups of detection components 9 corresponding to the oil injection pipe 7 and the oil outlet pipe 8, taking advantage of the different oil pressures in the oil injection pipe 7 and the oil outlet pipe 8 when leaking, the acting forces generated during the flow process are also different. Under different acting forces, based on the determination of different effects on the two groups of detection components 9, that is, when the positions are different, whether the corresponding lamp bodies 503 in the two warning areas are in the mirror image position, to determine whether the hydraulic servo motor leaks.

[0046] Furthermore, as shown in Figure 9 and Figure 10 , the detection component 9 includes an elastic member, a limiting member and a detection member. The elastic member includes a fixed disk 901, a spring 902 and a moving disk 903. The fixed disk 901 is connected to the inner wall of the detection box 5, the spring 902 is arranged between the fixed disk 901 and the moving disk 903. The limiting member includes two groups of limiting sliding seats 907 provided at the top and bottom of the moving disk 903 and fitted with the strip-shaped sliding grooves provided at the top and bottom of the detection box 5. The detection member includes a spherical seat 906 and a support rod connecting the spherical seat 906 and the moving disk 903.

[0047] Specifically, the detection component 9 mainly determines the magnitude of the force generated by the oil during oil injection and oil return, which affects the movement of the ball seat 906. The magnitude of the force is determined by the specific position of the ball seat 906. The magnitude of the force determines the magnitude of the oil pressure during oil injection and oil return. When the oil pressure during oil return is less than the oil pressure during oil injection, the positions of the two sets of ball seats 906 will be different.

[0048] In order to enable the detection component 9 to detect the oil in the oil filling pipe 7 and the oil outlet pipe 8, as shown in FIG. Figure 3 , Figure 4 and Figure 5 As shown, the oil filling pipe 7 and the oil outlet pipe 8 are symmetrically provided with ball seats 906 which can be partially embedded into the connecting opening 10 inside the pipe body, and a sealing gasket 11 is provided at the connecting opening 10;

[0049] Further explanation, the detection of the oil in the oil filling pipe 7 and the oil outlet pipe 8 by the detection component 9 needs to meet two conditions. First, it needs to ensure that the oil can flow normally in the oil filling pipe 7 and the oil outlet pipe 8, that is, the sealing performance; second, under the condition that the oil filling pipe 7 and the oil outlet pipe 8 ensure the sealing performance, the displacement effect of the ball seat 906 can be produced by the force of the oil;

[0050] Specifically, in order to ensure the normal circulation of oil, it is necessary to ensure that the ball seat 906 is partially embedded in the oil filling pipe 7 and the oil outlet pipe 8, for example, the embedded part of the ball seat 906 is 1 / 3 or 2 / 5 of the ball seat 906, and for the sealing protection of the oil filling pipe 7 and the oil outlet pipe 8, a soft sealing gasket 11 is used, and the sealing gasket 11 can be an elastic gasket, such as a rubber gasket or a high-toughness membrane, that is, when the ball seat 906 is embedded, it will drive the sealing gasket 11 into the oil pipe together, and the sealing gasket 11 will be fixed to the connecting port 10 by screws and fixing strips arranged according to the curved structure of the connecting port 10, so that the normal detection of the detection component 9 can be achieved while ensuring the normal circulation of oil in the oil pipe. The maximum position of the movement of the ball seat 906 of the detection component 9 is that the embedded end surface is flush with the connecting port 10;

[0051] In order to achieve the best detection effect, Figure 2 and Figure 3 As shown, the displacement of the detection component 9 is connected to the electrical connection of different lamp bodies 503. By comparing the positions of the lamp bodies 503 on the two warning areas, the oil leakage detection and the oil leakage degree detection can be achieved. Figure 1 , Figure 3 , Figure 6 , Figure 7 and Figure 8As shown in the figure, a conductive rod component connected in parallel with the negative connection line of the battery 6 through a circuit is provided on each of the two detection components 9. Two warning areas composed of multiple groups of lamp bodies 503 are provided on the outer end faces of the detection box 5 corresponding to the two detection components 9. On the inner end faces of the detection box 5 corresponding to the two detection components 9, two sets of wiring devices 12 are respectively provided, which are connected to the negative connection terminals of the multiple groups of lamp bodies 503 in the two warning areas through circuits and are electrically connected to the two conductive rod components by contact. The positive connection terminals of the multiple groups of lamp bodies 503 in the two warning areas are connected in parallel to the positive connection line of the battery 6;

[0052] For the above-mentioned battery 6, electrode buses for connecting the positive and negative poles are installed on the positive and negative interfaces. The bus of the negative pole of the battery 6 will be connected to the conductive rod components on the two detection components 9 through two parallel branch lines, and the bus of the positive pole of the battery 6 will be connected to the positive connection terminals of all the lamp bodies 503 in the two warning areas through multiple parallel branch lines. The negative connection terminals of the multiple lamp bodies 503 are connected to the wiring device 12 in an internally penetrating form through the connected branch lines;

[0053] It should be noted that the above-mentioned lamp body 503 is connected to the positive terminal of the battery 6, and the conductive rod component is connected to the negative terminal of the battery 6. The electrode connection positions can also be swapped, which is specifically determined according to the positions of the electrode interfaces of the battery 6;

[0054] Among them, the conductive rod component includes a connection seat 904 provided on the side end of the moving disk 903 and having a hollow structure, and a metal rod 905 extending from the center of the inside of the connection seat 904 to the wiring device 12. A circuit connection end is provided on the part of the metal rod 905 embedded in the connection seat 904;

[0055] Specifically, the metal rod 905 is the main component for electrical connection. The negative pole of the battery 6 directly penetrates the detection box 5, the connection seat 904 and is connected to the metal rod 905. As long as the wire length is ensured, it can adapt to the movement of the detection component 9. The two metal rods 905 are connected in parallel to the negative bus of the battery 6. The metal rod 905 can be a copper rod, an iron rod, a tungsten rod, etc. According to conductivity, the copper rod is the best. For the part of the metal rod 905 embedded in the connection seat 904, the branch line connecting the negative bus of the battery 6 is wound around it, ensuring the tightness and firmness of the connection between the wire body and the metal rod 905 when the detection component 9 is moving under force, and also ensuring the transmission of electricity to the metal rod 905;

[0056] For the above-mentioned wire splitting device 12, it mainly includes a wire splitting base 1201, a plurality of disk bases 1202 arranged at one end of the wire splitting base 1201 to provide fixation for the wire splitting base 1201 and independent penetration for the circuits of each lamp body 503, and a plurality of metal sheets 1203 arranged at the other end of the wire splitting base 1201 and connected to the circuits penetrating each lamp body 503. A rod-shaped connector embedded in the interior of the wire splitting base 1201 is provided on the metal sheet 1203. For the negative wire body of the lamp body 503 penetrating into the wire splitting base 1201, it will be wound around the rod-shaped end of the wire splitting base 1201, so that the wire body can be tightly connected to the rod-shaped end of the metal sheet 1203, ensuring the tightness and firmness of the connection between the wire body and the metal sheet 1203 when the detection component 9 is subjected to force, and also ensuring the transmission of electricity to the metal sheet 1203;

[0057] At the same time, the number of disk bases 1202 and metal sheets 1203 corresponds to the number of lamp bodies 503 in the warning area. The positions of the plurality of metal sheets 1203 correspond to and are in contact with the outer ends of the metal rods 905;

[0058] Furthermore, the wire splitting device 12 mainly realizes the connection of the wire bodies of multiple groups of lamp bodies 503. Through the contact between the corresponding metal sheets 1203 and the metal rods 905, the lamp bodies 503 are electrically connected, and the lamp bodies 503 will be in an on state. The setting of the number of lamp bodies 503 and metal sheets 1203 can be limited according to the speed regulation level of the hydraulic pump 4. For example, the hydraulic pump 4 has a total of five speed regulation levels, and each level corresponds to five metal sheets 1203 and lamp bodies 503. Through testing, the specific moving positions of the detection component 9 under the five speed regulation levels can be obtained. According to the specific moving positions, the positions of the metal sheets 1203 are set. Since the spherical seat 906 of the detection component 9 is partially embedded, therefore, the spring 902 of the detection component 9 also needs to be adaptively selected, so that the detection component 9 does not exceed the set range under multiple speed regulation levels. The materials of the metal sheets 1203 and the metal rods 905 are the same, and copper sheets are the best;

[0059] For the above-mentioned lamp body 503, since the two warning areas respectively correspond to the fuel injection pipe 7 and the oil outlet pipe 8, when setting the lamp body 503, it is necessary to ensure that the number of lamp bodies 503 in the two warning areas is the same, the positions correspond, and they are arranged horizontally;

[0060] In order to achieve the best presentation effect and recognition rate, the multiple groups of lamp bodies 503 in each of the two warning areas also need to be lamp bodies 503 of different colors, and the lamp bodies 503 of different colors in the two warning areas are mirror-image distributed;

[0061] To sum up, for the oil leakage detection of the hydraulic servo motor, the filling device and the detection device are mainly combined, so that the filling device has both the effects of driving and detection. The specific descriptions of driving and detection are as follows:

[0062] S1. The external oil pipes are respectively connected to the external oil pipe interfaces a501 and b502 on the detection box 5, and the other ends of the external oil pipes are respectively connected to the corresponding oil ports on the hydraulic servo motor. The hydraulic pump 4 is started through the control console 3. The hydraulic pump 4 injects the oil in the oil injection cavity 2 into the motor, and the oil returns to the cooling cavity 1 through the motor. The circulation of the oil inside the motor drives the piston to move, realizing the drive of the motor.

[0063] S2. At different speed regulation levels of the hydraulic pump 4, due to different flow rates and different forces exerted on the spherical seat 906 of the detection component 9 during the flow of the oil, under the action of the force, the spherical seats 906 of the injection oil pipe 7 and the oil outlet pipe 8 will both generate an outward force according to the magnitude of the force, causing the spherical seat 906 to move a corresponding distance.

[0064] S3. When the spherical seat 906 moves, it will cause the metal rod 905 of the connecting seat 904 on the detection component 9 to move to a corresponding distance on the wire splitting seat 1201. At the same time, the metal rod 905 will contact the corresponding metal sheet 1203 on the wire splitting seat 1201, and through the metal sheet 1203, the electric connection of the lamp body 503 connected to the metal sheet 1203 is realized, causing the lamp body 503 to turn on. When there is no oil leakage in the motor, the flow rate and oil pressure of the injection oil pipe 7 and the oil outlet pipe 8 are the same. Therefore, the positions where the lamp bodies 503 on the two warning areas turn on are the same, which can prove that the motor is running normally.

[0065] S4. When there is oil leakage in the motor, the oil pressure of the oil outlet pipe 8 decreases, reducing the oil return speed and also reducing the force generated during the oil flow. Under this force, the position where the spherical seat 906 of the detection component 9 moves is different from the position where the spherical seat 906 of the detection component 9 at the injection oil pipe 7 moves, showing that the positions where the lamp bodies 503 turn on are also different, thus proving the phenomenon of oil leakage in the motor.

[0066] S5. Since the degree of oil leakage in the motor is inversely proportional to the oil pressure, and the force generated during the oil return decreases gradually as the degree of oil leakage increases, resulting in insufficient force or insufficient force to drive the spherical seat 906 to move to the position corresponding to the spherical seat 906 on the injection oil pipe 7. At this time, the lamp body 503 in the warning area corresponding to the oil outlet pipe 8 will be in the off state or the distance between the turned-on lamp body 503 and the turned-on lamp body 503 in the warning area corresponding to the injection oil pipe 7 is relatively far. The degree of oil leakage in the motor is judged based on the distance between the lamp bodies 503 in the two warning areas or when the lamp body 503 in the warning area corresponding to the oil outlet pipe 8 will be in the off state (except for the case of circuit damage).

[0067] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention; any ordinary technician in the industry can smoothly implement the invention according to the illustrations in the specification and the above; however, any equivalent changes such as slight modifications, refinements, and evolutions made by those skilled in the art within the scope of the technical solution of the present invention by using the technical content disclosed above are equivalent embodiments of the present invention; at the same time, any equivalent changes, modifications, and evolutions made to the above embodiments based on the substantial technology of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. An oil leakage detection and filling device for a hydraulic servo motor, comprising an oil tank consisting of a cooling chamber (1) and an oil filling chamber (2), a control console (3) and a hydraulic pump (4) arranged on the top of the oil tank, characterized in that: It also includes a detection box (5) arranged beside the control console (3) and used for oil circulation and oil leakage detection of the hydraulic servo motor; A battery (6) is provided on one side of the detection box (5), and an oil filling pipe (7), an oil outlet pipe (8) and a detection component (9) respectively provided on both sides of the oil filling pipe (7) and the oil outlet pipe (8) for detecting the force generated by the oil flow inside the oil filling pipe (7) and the oil outlet pipe (8), and capable of adaptively moving according to the magnitude of the force, wherein one end of the oil filling pipe (7) and the oil outlet pipe (8) are respectively connected to an oil pipe external interface b (502) and an oil pipe external interface a (501) provided on the detection box (5), and the other end of the oil filling pipe (7) and the oil outlet pipe (8) are respectively connected to an oil outlet port of a hydraulic pump (4) and a cooling chamber (1), Both groups of the detection components (9) are provided with conductive rod-type components connected in parallel with the negative electrode connection line of the battery (6) through a circuit. Two warning areas consisting of multiple groups of lamp bodies (503) are provided on the end faces of the detection box (5) outside and corresponding to the two groups of the detection components (9). Two groups of branching devices (12) are respectively provided on the end faces of the detection box (5) inside and corresponding to the two groups of the detection components (9). The two groups of branching devices (12) are connected to the negative electrode terminals of the multiple groups of lamp bodies (503) on the two warning areas through a circuit and are electrically connected to the two groups of the conductive rod-type components through contact. The positive electrode terminals of the multiple groups of lamp bodies (503) on the two warning areas are connected in parallel with the positive electrode connection line of the battery (6).

2. The oil leakage detection and filling device for a hydraulic servo motor according to claim 1, characterized in that: The multiple groups of lamp bodies (503) on the two warning areas are arranged horizontally and are the same in number; The multiple groups of lamp bodies (503) in each of the two warning zones have different colors, and the lamp bodies (503) of different colors in the two warning zones are distributed in a mirror image form.

3. The oil leakage detection and filling device for a hydraulic servo motor according to claim 1, characterized in that: The detection component (9) comprises an elastic member, a limiting member and a detection member; The elastic member comprises a fixed disk (901), a spring (902) and a movable disk (903); the fixed disk (901) is connected to the inner wall of the detection box (5); and the spring (902) is arranged between the fixed disk (901) and the movable disk (903); The limiting member comprises two groups of limiting slide seats (907) arranged at the top and bottom of the moving plate (903) and engaged with the strip-shaped slide grooves arranged at the top and bottom of the detection box (5); The detection member comprises a spherical seat (906) and a support rod connected between the spherical seat (906) and the movable plate (903).

4. The oil leakage detection and filling device for a hydraulic servo motor according to claim 3, characterized in that: The oil filling pipe (7) and the oil outlet pipe (8) are symmetrically provided with spherical seats (906) which can be partially embedded in the connecting opening (10) inside the pipe body, and the connecting opening (10) is provided with a sealing gasket (11).

5. The oil leakage detection and filling device for a hydraulic servo motor according to claim 1, characterized in that: The conductive rod assembly comprises a hollow connection seat (904) arranged at the side end of the movable plate (903) and a metal rod (905) extending from the inner center of the connection seat (904) to the branch line device (12), and a line connection terminal is arranged on the part of the metal rod (905) embedded in the connection seat (904).

6. The oil leakage detection and filling device for a hydraulic servo motor according to claim 1, characterized in that: The branching device (12) comprises a branching seat (1201), a plurality of disk seats (1202) arranged at one end of the branching seat (1201) to fix the branching seat (1201) and to provide independent through-going circuits for each lamp body (503), and a plurality of metal sheets (1203) arranged at the other end of the branching seat (1201) and connected to the circuits passing through each lamp body (503).

7. The oil leakage detection and filling device for a hydraulic servo motor according to claim 5, characterized in that: The number of the disc seat (1202) and the metal sheet (1203) corresponds to the number of the lamp bodies (503) in the warning area, and the plurality of metal sheets (1203) correspond to the positions of the external ends of the metal rod (905) and are in contact with each other.

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