Speed regulating method and device for a speed regulating hydrodynamic coupling

Abstract

The application relates to the technical field of hydraulic couplers, in particular to a speed-regulating method and device for a speed-regulating hydraulic coupler. The method comprises the following steps: acquiring real-time oil level data in a hydraulic coupling cavity of the coupler, setting a predicted oil leakage amount according to the real-time oil level data, setting a real-time adjusting valve opening degree and an input shaft real-time rotating speed according to the predicted oil leakage amount; acquiring real-time oil leakage amount data, correcting the real-time adjusting valve opening degree according to the difference between the real-time oil leakage amount and the predicted oil leakage amount; acquiring real-time oil temperature data in the hydraulic coupling cavity of the coupler, correcting the input shaft real-time rotating speed according to the real-time oil temperature data and judging whether a warning instruction is generated according to the real-time oil temperature data. By additionally arranging an oil return part, the real-time oil leakage amount is controlled by using an adjusting valve arranged on an oil return pipe, the problem that the oil leakage amount is increased due to the fact that the gap between a spoon pipe and a spoon pipe sleeve is increased is avoided, and the stable and accurate speed regulation of the speed-regulating hydraulic coupler is ensured.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of hydraulic couplings, in particular to a speed regulating method and device for a speed regulating hydraulic coupling. BACKGROUND

[0002] The speed regulating hydraulic coupling is a shaft coupling that transmits power to a working machine by using liquid oil as a medium. The speed regulating hydraulic coupling can realize stepless regulation of the output rotating speed under the condition that the rotating speed of the motor is unchanged, can improve the starting ability of the motor, reduce impact and vibration, coordinate load distribution of multiple motor drives, is easy to realize remote control and automatic control, and can save a large amount of electric energy, and has a wide application in coal mine production.

[0003] The traditional speed regulating device is mainly a spoon tube structure, the bottom is a spoon-shaped spoon opening, the middle of the spoon tube has a return oil hole, the head is connected with an executing mechanism, and the control oil leakage amount of the spoon tube is adjusted by the depth of the spoon opening inserted into the liquid coupling cavity. The working principle of the speed regulating hydraulic coupling is that the input shaft drives the pump wheel to rotate, the pump wheel works on the hydraulic oil, the hydraulic oil generates pressure, the oil with pressure in the hydraulic cavity drives the turbine to rotate the output shaft; the spoon tube is inserted into the liquid coupling cavity, the depth of the spoon opening at the bottom of the spoon tube inserted into the liquid coupling cavity is adjusted by the electric actuator, the oil above the spoon opening height of the spoon tube in the liquid coupling cavity enters the spoon tube from the spoon opening at the bottom of the spoon tube under the action of oil pressure, and then returns to the box body through the return oil hole; thereby the oil level in the liquid coupling cavity is controlled, the amount of hydraulic oil working on the pump wheel is controlled, and the driving force of the turbine and the output rotating speed of the output shaft are determined. The traditional speed regulating device has the following defects: long-time adjustment, large gap between the spoon tube and the spoon tube sleeve, large oil leakage amount, and loss of the adjustment function. The adjustment lacks stability and precision. SUMMARY

[0004] The application aims to solve the above technical problems, and provides a speed regulating method and device for a speed regulating hydraulic coupling, which realizes stable and accurate speed regulation of the speed regulating hydraulic coupling.

[0005] In some embodiments of the application, the return oil part is additionally arranged, the real-time oil leakage amount is controlled by using the adjusting valve arranged on the return oil pipe, the problem that the oil leakage amount increases due to the large gap between the spoon tube and the spoon tube sleeve is avoided, and the stable and accurate speed regulation of the speed regulating hydraulic coupling is ensured. The expected oil leakage amount is set according to the real-time oil level data, the opening degree of the adjusting valve is adjusted in time, the timeliness of the speed regulation is ensured, the real-time oil temperature data are acquired, the working parameters of the speed regulating hydraulic coupling are corrected in time, and the safe operation of the device is ensured.

[0006] In some embodiments of the application, a speed regulating method for a speed regulating hydraulic coupling is provided, which comprises the following steps.

[0007] acquiring real-time oil level data in the liquid coupling cavity of the coupling, setting a predicted oil leakage amount according to the real-time oil level data, setting a real-time adjusting valve opening degree and a real-time input shaft rotating speed according to the predicted oil leakage amount;

[0008] acquiring real-time oil leakage amount data, correcting the real-time adjusting valve opening degree according to a difference between the real-time oil leakage amount and the predicted oil leakage amount;

[0009] acquiring real-time oil temperature data in the liquid coupling cavity of the coupling, correcting the real-time input shaft rotating speed according to the real-time oil temperature data and judging whether to generate a pre-warning instruction according to the real-time oil temperature data.

[0010] In some embodiments of the present application, when setting the real-time adjusting valve opening degree according to the real-time oil level data, the following steps are included:

[0011] a preset oil level value matrix A is set as A (A1, A2, A3, A4), wherein A1 is a preset first oil level value, A2 is a preset second oil level value, A3 is a preset third oil level value, and A4 is a preset fourth oil level value, and A1

[0012] a preset oil leakage amount matrix C is set as C (C1, C2, C3, C4), wherein C1 is a preset first oil leakage amount, C2 is a preset second oil leakage amount, C3 is a preset third oil leakage amount, and C4 is a preset fourth oil leakage amount, and C1

[0013] real-time oil level a in the liquid coupling cavity of the coupling is acquired, and a predicted oil leakage amount c is set according to the real-time oil level a;

[0014] if A1

[0015] if A2

[0016] if A3

[0017] if A4, the predicted oil leakage amount c is set as the preset fourth oil leakage amount C4, i.e. c = C4.

[0018] In some embodiments of the present application, when setting the real-time adjusting valve opening degree according to the real-time oil leakage amount data, the following steps are included:

[0019] a preset adjusting valve opening degree matrix B is set as B (B1, B2, B3, B4), wherein B1 is a preset first adjusting valve opening degree, B2 is a preset second adjusting valve opening degree, B3 is a preset third adjusting valve opening degree, and B4 is a preset fourth adjusting valve opening degree, and B1

[0020] obtaining a preset expected oil leakage amount c, and setting a real-time regulator opening degree b according to the expected oil leakage amount c;

[0021] If c=C1, the real-time regulating valve opening degree b is set as a preset first regulating valve opening degree B1, i.e., b=B1;

[0022] If c=C2, the real-time regulating valve opening degree b is set as a preset second regulating valve opening degree B2, i.e., b=B2;

[0023] If c=C3, the real-time regulating valve opening degree b is set as a preset third regulating valve opening degree B3, i.e., b=B3;

[0024] If c=C4, the real-time regulating valve opening degree b is set as a preset fourth regulating valve opening degree B4, i.e., b=B4.

[0025] In some embodiments of the present application, the real-time regulating valve opening degree is corrected according to the difference between the real-time oil leakage amount and the expected oil leakage amount, including:

[0026] A preset regulating valve opening correction coefficient matrix M is set as M(m1, m2, m3, m4), wherein m1 is a preset first regulating valve opening correction coefficient, m2 is a preset second regulating valve opening correction coefficient, m3 is a preset third regulating valve opening correction coefficient, and m4 is a preset fourth regulating valve opening correction coefficient, and 0.8

[0027] A preset difference matrix E is set as (E1, E2), wherein E1 is a preset first difference, and E2 is a preset second difference, and E1

[0028] The real-time oil leakage amount c1 and the expected oil leakage amount c are obtained, and the absolute value e of the difference between the real-time oil leakage amount c1 and the expected oil leakage amount c is generated, and the real-time regulating valve opening correction coefficient m is set according to the absolute value of the difference;

[0029] When c>c1,

[0030] If e

[0031] If E1

[0032] If e>E2, m=m4 is set, and the corrected real-time regulating valve opening degree b1=m4*Bi;

[0033] When c

[0034] If e

[0035] If E1 < e < E2, set m = m2, and correct the real-time adjusting valve opening degree b1 = m2 * Bi;

[0036] If e > E2, set m = m1, and correct the real-time adjusting valve opening degree b1 = m1 * Bi.

[0037] In some embodiments of the present application, when setting the real-time output rotating speed of the input shaft according to the real-time oil leakage data, the method comprises:

[0038] A preset input shaft rotating speed matrix D is set as D (D1, D2, D3, D4), wherein D1 is a preset first input shaft rotating speed, D2 is a preset second input shaft rotating speed, D3 is a preset third input shaft rotating speed, and D4 is a preset fourth input shaft rotating speed, and D1 < D2 < D3 < D4;

[0039] An estimated oil leakage c is obtained, and a real-time input shaft rotating speed d is set according to the estimated oil leakage c;

[0040] If c = C1, the real-time input shaft rotating speed d is set to be between the preset first input shaft rotating speed D1 and the preset second input shaft rotating speed D2, i.e. D1 < d < D2;

[0041] If c = C2, the real-time input shaft rotating speed d is set to be between the preset second input shaft rotating speed D2 and the preset third input shaft rotating speed D3, i.e. D2 < d < D3;

[0042] If c = C3, the real-time input shaft rotating speed d is set to be between the preset third input shaft rotating speed D3 and the preset fourth input shaft rotating speed D4, i.e. D3 < d < D4;

[0043] If c = C4, the real-time input shaft rotating speed d is set to be greater than the preset fourth input shaft rotating speed D4, i.e. d > D4.

[0044] In some embodiments of the present application, when correcting the real-time rotating speed of the input shaft and the real-time opening degree of the adjusting valve according to the real-time oil temperature data, the method comprises:

[0045] A preset oil temperature matrix T is set as T (T1, T2, T3, T4), wherein T1 is a preset first oil temperature, T2 is a preset second oil temperature, T3 is a preset third oil temperature, and T4 is a preset fourth oil temperature, and T1 < T2 < T3 < T4;

[0046] A preset input shaft rotating speed compensation coefficient matrix N is set as N (n1, n2, n3, n4), wherein n1 is a preset first input shaft rotating speed compensation coefficient, n2 is a preset second input shaft rotating speed compensation coefficient, n3 is a preset third input shaft rotating speed compensation coefficient, and n4 is a preset fourth input shaft rotating speed compensation coefficient, and 0.8 < n1 < n2 < n3 < n4 < 1;

[0047] acquire real-time oil temperature t, set real-time input shaft speed compensation coefficient n according to the real-time oil temperature t,

[0048] if T1

[0049] if T2

[0050] if T3

[0051] if t>T4, set real-time input shaft speed compensation coefficient n as preset first input shaft speed compensation coefficient n1, i.e. n=n1, and the corrected real-time input shaft speed d1=n1*Di.

[0052] In some embodiments of the present application, when determining whether to generate a warning instruction according to the real-time oil temperature data, the following steps are included:

[0053] preset oil temperature threshold T5 and first time interval;

[0054] acquire real-time oil temperature t, and generate a warning instruction when the time interval during which t>T5 is greater than the preset first time interval;

[0055] if the time interval during which t>T5 is less than the preset first time interval, do not generate a warning instruction;

[0056] if t

[0057] In some embodiments of the present application, a speed regulating hydraulic coupler speed regulating device is provided, which includes:

[0058] a box body;

[0059] an input shaft connecting hole and an output shaft connecting hole, which are arranged on the box body;

[0060] a first cavity arranged in the box body;

[0061] a hydraulic coupling cavity arranged in the first cavity;

[0062] a pump wheel arranged in the hydraulic coupling cavity, which is used to control the movement speed of hydraulic oil;

[0063] an input shaft connected with the pump wheel through the input shaft connecting hole, the input shaft being used to control the rotation speed of the pump wheel;

[0064] a turbine arranged in the liquid coupling cavity;

[0065] an output shaft connected with the turbine through the output shaft connecting hole;

[0066] an oil return part, one end of the oil return part being connected with the liquid coupling cavity, the other end of the oil return part being connected with the first cavity, the oil return part being used to control the flow of the hydraulic oil in the liquid coupling cavity into the first cavity.

[0067] In some embodiments of the present application, the oil return part comprises:

[0068] a first scoop pipe, one end of the first scoop pipe being provided with an oil return port, one end of the first scoop pipe provided with an oil return hole being arranged at the bottom of the liquid coupling cavity, the hydraulic oil in the liquid coupling cavity flowing into the first scoop pipe through the oil return pipe;

[0069] an oil return pipe, one end of the oil return pipe being connected with the first scoop pipe, the other end of the oil return pipe being connected with the box body, the hydraulic oil in the first scoop pipe flowing into the first cavity through the oil return pipe;

[0070] a control unit arranged on the oil return pipe, the control unit being used to control the flow of the hydraulic oil in the oil return pipe.

[0071] In some embodiments of the present application, the control unit comprises:

[0072] a collection module arranged on the oil return pipe, the collection module being used to acquire real-time oil leakage and real-time oil temperature;

[0073] an adjustment module arranged on the oil return pipe, the adjustment module being used to set the opening degree of an adjustment valve, the adjustment module being further used to determine whether to generate a warning instruction according to real-time oil temperature data;

[0074] an oil level mirror arranged on the oil return pipe, the oil level mirror being used to monitor the real-time oil level of the hydraulic oil in the liquid coupling cavity.

[0075] Compared with the prior art, the speed regulating hydraulic coupling speed regulating method and device according to the embodiments of the present application have the following beneficial effects:

[0076] By adding the oil return part, the real-time oil leakage is controlled by the adjusting valve arranged on the oil return pipe, the problem of increasing oil leakage caused by the increasing gap between the spoon pipe and the spoon pipe sleeve is avoided, the stable and accurate speed regulation of the speed regulating hydraulic coupler is ensured. According to the real-time oil level data, the expected oil leakage is set, the opening of the adjusting valve is adjusted in time, the timeliness of the speed regulation is ensured, and the working parameters of the speed regulating hydraulic coupler are corrected in time by obtaining the real-time oil temperature data, and the safe operation of the device is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0077] Figure 1 is a flowchart of a speed regulating method of a speed regulating hydraulic coupler according to an embodiment of the present application;

[0078] Figure 2 is a schematic diagram of a speed regulating device of a speed regulating hydraulic coupler according to an embodiment of the present application.

[0079] 100 - box; 200 - first cavity; 300 - turbine; 400 - output shaft; 500 - input shaft; 600 - pump wheel; 710 - first spoon pipe; 720 - oil return pipe; 730 - acquisition module; 740 - adjusting module; 750 - oil level mirror; liquid coupling cavity - 800. DETAILED DESCRIPTION

[0080] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings and embodiments. The following embodiments are used to illustrate the present application, but not to limit the scope of the present application.

[0081] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0082] The terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise stated, the meaning of "multiple" is two or more.

[0083] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0084] As shown in the embodiment of the present application, the speed regulating method of the speed regulating fluid coupling of the preferred embodiment of the present application comprises: Figure 1

[0085] S101: acquiring real-time oil level data in the fluid coupling cavity of the coupling, setting the expected oil leakage amount according to the real-time oil level data, setting the real-time adjusting valve opening degree and the input shaft real-time rotating speed according to the expected oil leakage amount;

[0086] S102: acquiring real-time oil leakage amount data, correcting the real-time adjusting valve opening degree according to the difference between the real-time oil leakage amount and the expected oil leakage amount;

[0087] S103: acquiring real-time oil temperature data in the fluid coupling cavity of the coupling, correcting the input shaft real-time rotating speed according to the real-time oil temperature data and judging whether to generate a warning instruction according to the real-time oil temperature data.

[0088] Specifically, when setting the real-time opening degree of the adjusting valve according to the real-time oil level data, it comprises:

[0089] A preset oil level value matrix A is set as A (A1, A2, A3, A4), wherein A1 is a preset first oil level value, A2 is a preset second oil level value, A3 is a preset third oil level value, and A4 is a preset fourth oil level value, and A1

[0090] A preset oil leakage amount matrix C is set as C (C1, C2, C3, C4), wherein C1 is a preset first oil leakage amount, C2 is a preset second oil leakage amount, C3 is a preset third oil leakage amount, and C1 is a preset first oil leakage amount, and C1

[0091] Acquiring the real-time oil level a in the fluid coupling cavity of the coupling, setting the expected oil leakage amount c according to the real-time oil level a;

[0092] If A1

[0093] If A2

[0094] If A3​

[0095] If a>A4, set the expected oil leakage amount c as the preset fourth oil leakage amount C4, that is, c=C4.

[0096] It can be understood that in the above embodiment, the expected oil leakage amount is set by the real-time oil level data through the preset oil level value matrix and the oil leakage amount matrix, the oil leakage amount is adjusted in stages, and it is ensured that the hydraulic oil in the liquid coupling cavity can enter the first cavity in time, thereby ensuring that the output speed of the fluid coupling runs in the safe region.

[0097] In the preferred embodiment of the present application, when the real-time adjustment valve opening degree is set according to the real-time oil leakage amount data, it includes:

[0098] A preset adjustment valve opening degree matrix B is set as B (B1, B2, B3, B4), wherein B1 is a preset first adjustment valve opening degree, B2 is a preset second adjustment valve opening degree, B3 is a preset third adjustment valve opening degree, and B4 is a preset fourth adjustment valve opening degree, and B1

[0099] A preset expected oil leakage amount c is obtained, and the real-time adjustment valve opening degree b is set according to the expected oil leakage amount c;

[0100] If c=C1, the real-time adjustment valve opening degree b is set as the preset first adjustment valve opening degree B1, that is, b=B1.

[0101] If c=C2, the real-time adjustment valve opening degree b is set as the preset second adjustment valve opening degree B2, that is, b=B2.

[0102] If c=C3, the real-time adjustment valve opening degree b is set as the preset third adjustment valve opening degree B3, that is, b=B3.

[0103] If c=C4, the real-time adjustment valve opening degree b is set as the preset fourth adjustment valve opening degree B4, that is, b=B4.

[0104] Specifically, the real-time adjustment valve opening degree is corrected according to the difference between the real-time oil leakage amount and the expected oil leakage amount, which includes:

[0105] A preset adjustment valve opening degree correction coefficient matrix M is set as M (m1, m2, m3, m4), wherein m1 is a preset first adjustment valve opening degree correction coefficient, m2 is a preset second adjustment valve opening degree correction coefficient, m3 is a preset third adjustment valve opening degree correction coefficient, and m4 is a preset fourth adjustment valve opening degree correction coefficient, and 0.8

[0106] A preset difference matrix E is set as (E1, E2), wherein E1 is a preset first difference, and E2 is a preset second difference, and E1

[0107] acquiring the real-time oil leakage amount c1 and the predicted oil leakage amount c, and generating a difference absolute value e of the real-time oil leakage amount c1 and the predicted oil leakage amount c, and setting a real-time adjusting valve opening degree correction coefficient m according to the difference absolute value;

[0108] when c>c1,

[0109] if e

[0110] if E1

[0111] if e>E2, set m=m4, and the real-time adjusting valve opening degree b1 after correction=m4*Bi;

[0112] when c

[0113] if e

[0114] if E1

[0115] if e>E2, set m=m1, and the real-time adjusting valve opening degree b1 after correction=m1*Bi.

[0116] It can be understood that, in the above embodiment, the opening degree of the adjusting valve is set in real time according to the preset predicted oil leakage amount, so as to ensure that the hydraulic oil in the liquid coupling cavity enters the first cavity in time, the control of the oil leakage amount is realized through the control of the opening degree of the adjusting valve, the difference of the oil leakage amount is generated in real time through the collection of the real-time oil leakage amount data, the correction coefficient is set according to the difference, and the opening degree of the adjusting valve is corrected in real time, so as to ensure the accuracy of the oil leakage amount, and the stable and accurate speed regulation of the speed regulating hydraulic coupler is ensured.

[0117] In the preferred embodiment of the present application, when the real-time oil leakage amount data is used to set the real-time output rotating speed of the input shaft, the following steps are included:

[0118] a preset input shaft rotating speed matrix D is set, and D(D1, D2, D3, D4) is set, wherein D1 is a preset first input shaft rotating speed, D2 is a preset second input shaft rotating speed, D3 is a preset third input shaft rotating speed, and D4 is a preset fourth input shaft rotating speed, and D1

[0119] the predicted oil leakage amount c is acquired, and the real-time input shaft rotating speed d is set according to the predicted oil leakage amount c;

[0120] if c=C1, the real-time input shaft rotating speed d is set to be between the preset first input shaft rotating speed D1 and the preset second input shaft rotating speed D2, i.e. D1

[0121] If c=C2, the real-time input shaft speed d is set between the preset second input shaft speed D2 and the preset third input shaft speed D3, i.e. D2

[0122] If c=C3, the real-time input shaft speed d is set between the preset third input shaft speed D3 and the preset fourth input shaft speed D4, i.e. D3

[0123] If c=C4, the real-time input shaft speed d is greater than the preset fourth input shaft speed D4, i.e. d>D4.

[0124] Specifically, when correcting the real-time input shaft speed and adjusting the real-time opening of the valve according to the real-time oil temperature data, it includes:

[0125] A preset oil temperature matrix T is set, T(T1, T2, T3, T4), wherein T1 is a preset first oil temperature, T2 is a preset second oil temperature, T2 is a preset third oil temperature, and T4 is a preset fourth oil temperature, and T1

[0126] A preset input shaft speed compensation coefficient matrix N is set, N(n1, n2, n3, n4), wherein n1 is a preset first input shaft speed compensation coefficient, n2 is a preset second input shaft speed compensation coefficient, n3 is a preset third input shaft speed compensation coefficient, and n4 is a preset fourth input shaft speed compensation coefficient, and 0.8

[0127] The real-time oil temperature t is obtained, and the real-time input shaft speed compensation coefficient n is set according to the real-time oil temperature t,

[0128] If T1

[0129] If T2

[0130] If T3

[0131] If t>T4, the real-time input shaft speed compensation coefficient n is set to the preset first input shaft speed compensation coefficient n1, i.e. n=n1, and the corrected real-time input shaft speed d1=n1*Di.

[0132] Specifically, when determining whether to generate a warning instruction according to the real-time oil temperature data, it includes:

[0133] a preset oil temperature threshold T5 and a first time interval;

[0134] acquiring a real-time oil temperature t, and generating a warning instruction if a time interval during which t>T5 is greater than the preset first time interval;

[0135] not generating the warning instruction if the time interval during which t>T5 is less than the preset first time interval;

[0136] not generating the warning instruction if t

[0137] Specifically, when the device generates the warning instruction, shutdown maintenance should be performed.

[0138] It can be understood that, in the above embodiment, the input shaft speed is adjusted in time according to the predicted oil leakage amount by presetting the input shaft speed matrix, so as to ensure the stability of the speed regulation of the device, and the running parameters of the device are corrected in time by acquiring the real-time oil temperature, so as to avoid device failure caused by overheating of the oil temperature and ensure that the output speed of the speed-regulating hydraulic coupler runs in a stable range.

[0139] As Figure 2 Based on the speed-regulating method of the speed-regulating hydraulic coupler in any of the above preferred embodiments, another preferred embodiment of the speed-regulating method of the speed-regulating hydraulic coupler is provided, which comprises the following steps:

[0140] a box body 100;

[0141] an input shaft 500 connecting hole and an output shaft 400 connecting hole, which are arranged on the box body 100;

[0142] a first cavity 200 arranged in the box body 100;

[0143] a liquid coupling cavity 800 arranged in the first cavity 200;

[0144] a pump wheel 600 arranged in the liquid coupling cavity 800, the pump wheel 600 being used to control the movement speed of the hydraulic oil;

[0145] an input shaft 500, which is connected with the pump wheel 600 through the input shaft 500 connecting hole, the input shaft 500 being used to control the rotation speed of the pump wheel 600;

[0146] a turbine 300 arranged in the liquid coupling cavity 800;

[0147] an output shaft 400, which is connected with the turbine 300 through the output shaft 400 connecting hole;

[0148] an oil return part, one end of which is connected with the liquid coupling cavity 800 and the other end of which is connected with the first cavity 200, the oil return part being used to control the inflow of the hydraulic oil in the liquid coupling cavity 800 into the first cavity 200.

[0149] Specifically, the oil return part comprises:

[0150] a first scoop pipe 710, one end of the first scoop pipe 710 is provided with an oil return port, and the end of the first scoop pipe 710 with the oil return hole is arranged at the bottom of the liquid coupling cavity 800; the hydraulic oil in the liquid coupling cavity 800 flows into the first scoop pipe 710 through the oil return pipe 720;

[0151] an oil return pipe 720, one end of the oil return pipe 720 is connected with the first scoop pipe 710, and the other end of the oil return pipe 720 is connected with the box body 100; the hydraulic oil in the first scoop pipe 710 flows into the first cavity 200 through the oil return pipe 720;

[0152] a control unit, the control unit is arranged on the oil return pipe 720, and the control unit is used for controlling the flow of the hydraulic oil in the oil return pipe 720.

[0153] Specifically, the control unit comprises:

[0154] a collection module 730, the collection module 730 is arranged on the oil return pipe 720, and the collection module 730 is used for acquiring a real-time oil leakage amount and a real-time oil temperature;

[0155] an adjustment module 740, the adjustment module 740 is arranged on the oil return pipe 720, and the adjustment module 740 is used for setting an opening degree of an adjustment valve; the adjustment module 740 is also used for judging whether to generate a warning instruction according to the real-time oil temperature data;

[0156] an oil level mirror 750, the oil level mirror 750 is arranged on the oil return pipe 720, and the oil level mirror 750 is used for monitoring a real-time oil level of the hydraulic oil in the liquid coupling cavity 800.

[0157] Specifically, the collection module 730 comprises a flow meter and a temperature sensor.

[0158] Specifically, the input shaft 500 drives the pump wheel 600 to rotate, the pump wheel 600 does work on the hydraulic oil, the hydraulic oil generates pressure, the oil with pressure in the liquid coupling cavity 800 drives the turbine 300 to rotate through the output shaft 400; the hydraulic oil in the liquid coupling cavity 800 enters the scoop pipe through the oil return port under the action of oil pressure, the leakage amount is controlled through the opening degree of the adjustment module, and the hydraulic oil finally returns to the first cavity 200 through the oil return pipe 720; the leakage amount determines the oil level in the liquid coupling cavity 800, thereby controlling the amount of hydraulic oil doing work on the pump wheel 600, and thereby determining the driving force of the turbine 300 and the output speed of the output shaft 400.

[0159] According to the first concept of the application, by adding the oil return part, the real-time oil leakage is controlled by the adjusting valve arranged on the oil return pipe 720, the problem of increased oil leakage due to the increased gap between the spoon pipe and the spoon pipe sleeve is avoided, and the stable and accurate speed regulation of the speed regulating hydraulic coupler is ensured. According to the real-time oil level data, the expected oil leakage is set, the opening of the adjusting valve is adjusted in time, the timeliness of the speed regulation is ensured, the real-time oil temperature data is obtained, the working parameters of the speed regulating hydraulic coupler are corrected in time, and the safe operation of the device is ensured.

[0160] The above is only the preferred embodiment of the application. It should be pointed out that for ordinary skilled persons in the technical field, several improvements and replacements can be made without departing from the technical principles of the application, and these improvements and replacements should be considered as the protection scope of the application.

Claims

1. A speed regulation method for a speed-regulating hydraulic coupling, characterized in that, Including: Obtain the real-time oil level data in the liquid coupling cavity of the coupler, set the predicted oil discharge amount according to the real-time oil level data, and set the real-time opening degree of the regulating valve and the real-time rotational speed of the input shaft according to the predicted oil discharge amount; Obtain the real-time oil discharge amount data, and correct the real-time opening degree of the regulating valve according to the difference between the real-time oil discharge amount and the predicted oil discharge amount; Obtain the real-time oil temperature data in the liquid coupling cavity of the coupler, correct the real-time rotational speed of the input shaft according to the real-time oil temperature data, and judge whether to generate a warning instruction according to the real-time oil temperature data.

2. The speed regulation method of the speed-regulating hydraulic coupling as described in claim 1, characterized in that, When setting the real-time opening degree of the regulating valve according to the real-time oil level data, it includes: Preset an oil level value matrix A, set A(A1, A2, A3, A4), where A1 is the preset first oil level value, A2 is the preset second oil level value, A3 is the preset third oil level value, A4 is the preset fourth oil level value, and A1 < A2 < A3 < A4; Preset an oil discharge amount matrix C, set C(C1, C2, C3, C4), where C1 is the preset first oil discharge amount, C2 is the preset second oil discharge amount, C3 is the preset third oil discharge amount, C1 is the preset first oil discharge amount, and C1 < C2 < C3 < C4; Obtain the real-time oil level a in the liquid coupling cavity of the coupler, and set the predicted oil discharge amount c according to the real-time oil level a; If A1 < a < A2, set the predicted oil discharge amount c as the preset first oil discharge amount C1, that is, c = C1; If A2 < a < A3, set the predicted oil discharge amount c as the preset second oil discharge amount C2, that is, c = C2; If A3 < a < A3, set the predicted oil discharge amount c as the preset third oil discharge amount C3, that is, c = C3; If a > A4, set the predicted oil discharge amount c as the preset fourth oil discharge amount C4, that is, c = C4.

3. The speed regulation method of the speed-regulating hydraulic coupler as described in claim 2, characterized in that, When setting the real-time opening degree of the regulating valve according to the real-time oil discharge amount data, it includes: Preset a regulating valve opening degree matrix B, set B(B1, B2, B3, B4), where B1 is the preset first regulating valve opening degree, B2 is the preset second regulating valve opening degree, B3 is the preset third regulating valve opening degree, B4 is the preset fourth regulating valve opening degree, and B1 < B2 < B3 < B4; Obtain the preset predicted oil discharge amount c, and set the real-time regulator opening degree b according to the predicted oil discharge amount c; If c = C1, set the real-time opening degree of the regulating valve b as the preset first regulating valve opening degree B1, that is, b = B1; If c = C2, set the real-time opening degree of the regulating valve b as the preset second regulating valve opening degree B2, that is, b = B2; If c = C3, set the real-time opening degree of the regulating valve b as the preset third regulating valve opening degree B3, that is, b = B3; If c = C4, set the real-time opening degree of the regulating valve b as the preset fourth regulating valve opening degree B4, that is, b = B4.

4. The speed regulation method of the speed-regulating hydraulic coupling as described in claim 3, characterized in that, When correcting the real-time opening degree of the regulating valve according to the difference between the real-time oil discharge amount and the predicted oil discharge amount, it includes: Preset a regulating valve opening degree correction coefficient matrix M, set M(m1, m2, m3, m4), where m1 is the preset first regulating valve opening degree correction coefficient, m2 is the preset second regulating valve opening degree correction coefficient, m3 is the preset third regulating valve opening degree correction coefficient, m4 is the preset fourth regulating valve opening degree correction coefficient, and 0.8 < m1 < m2 < 1 < m3 < m4 < 1.2; Preset the difference matrix E, and set (E1, E2), where E1 is the preset first difference and E2 is the preset second difference, and E1 < E2; Obtain the real-time oil discharge amount c1 and the predicted oil discharge amount c, and generate the absolute value e of the difference between the real-time oil discharge amount c1 and the predicted oil discharge amount c. Set the real-time regulating valve opening correction coefficient m according to the absolute value of the difference; When c > c1, If e < E1, do not correct the real-time regulating valve opening b; If E1 < e < E2, set m = m3, and the corrected real-time regulating valve opening b1 = m3 * Bi; If e > E2, set m = m4, and the corrected real-time regulating valve opening b1 = m4 * Bi; When c < c1, If e < E1, do not correct the real-time regulating valve opening b; If E1 < e < E2, set m = m2, and the corrected real-time regulating valve opening b1 = m2 * Bi; If e > E2, set m = m1, and the corrected real-time regulating valve opening b1 = m1 * Bi.

5. The speed regulation method of the speed-regulating hydraulic coupling as described in claim 2, characterized in that, When setting the real-time output speed of the input shaft according to the real-time oil discharge data, it includes: Preset the input shaft speed matrix D, and set D(D1, D2, D3, D4), where D1 is the preset first input shaft speed, D2 is the preset second input shaft speed, D3 is the preset third input shaft speed, D4 is the preset fourth input shaft speed, and D1 < D2 < D3 < D4; Obtain the predicted oil discharge amount c, and set the real-time input shaft speed d according to the predicted oil discharge amount c; If c = C1, set the real-time input shaft speed d to be between the preset first input shaft speed D1 and the preset second input shaft speed D2, that is, D1 < d < D2; If c = C2, set the real-time input shaft speed d to be between the preset second input shaft speed D2 and the preset third input shaft speed D3, that is, D2 < d < D3; If c = C3, set the real-time input shaft speed d to be between the preset third input shaft speed D3 and the preset fourth input shaft speed D4, that is, D3 < d < D4; If c = C4, set the real-time input shaft speed d to be greater than the preset fourth input shaft speed D4, that is, d > D4.

6. The speed regulation method of the speed-regulating hydraulic coupling as described in claim 5, characterized in that, When correcting the real-time speed of the input shaft and the real-time opening of the regulating valve according to the real-time oil temperature data, it includes; Preset the oil temperature matrix T, and set T(T1, T2, T3, T4), where T1 is the preset first oil temperature, T2 is the preset second oil temperature, T2 is the preset third oil temperature, T4 is the preset fourth oil temperature, and T1 < T2 < T3 < T4; Preset the input shaft speed compensation coefficient matrix N, and set N(n1, n2, n3, n4), where n1 is the preset first input shaft speed compensation coefficient, n2 is the preset second input shaft speed compensation coefficient, n3 is the preset third input shaft speed compensation coefficient, n4 is the preset fourth input shaft speed compensation coefficient, and 0.8 < n1 < n2 < n3 < n4 < 1; Obtain the real-time oil temperature t, and set the real-time input shaft speed compensation coefficient n according to the real-time oil temperature t, If T1 < t < T2, set the real-time input shaft speed compensation coefficient n to be the preset fourth input shaft speed compensation coefficient n4, that is, n = n4, and the corrected real-time input shaft speed d1 = n4 * Di; If T2 < t < T3, set the real-time input shaft speed compensation coefficient n as the preset third input shaft speed compensation coefficient n3, that is, n = n3, and the corrected real-time input shaft speed d1 = n3 * Di; If T3 < t < T4, set the real-time input shaft speed compensation coefficient n as the preset second input shaft speed compensation coefficient n2, that is, n = n2, and the corrected real-time input shaft speed d1 = n2 * Di; If t > T4, set the real-time input shaft speed compensation coefficient n as the preset first input shaft speed compensation coefficient n1, that is, n = n1, and the corrected real-time input shaft speed d1 = n1 * Di.

7. The speed regulation method of the speed-regulating hydraulic coupling as described in claim 1, characterized in that, When judging whether to generate a warning instruction according to the real-time oil temperature data, it includes: Preset an oil temperature threshold T5 and a first time interval; Obtain the real-time oil temperature t. If the time interval when t > T5 is greater than the preset first time interval, generate a warning instruction; If the time interval when t > T5 is less than the preset first time interval, do not generate a warning instruction; If t < T5, do not generate a warning instruction.

8. A speed regulating device for a speed regulating hydraulic coupler, employing the speed regulating method for the speed regulating hydraulic coupler as described in any one of claims 1-7, characterized in that, Include; A box body; Input shaft connection holes and output shaft connection holes, and the input shaft connection holes and the output shaft connection holes are arranged on the box body; A first cavity, arranged inside the box body; A liquid coupling cavity, arranged inside the first cavity; A pump impeller, arranged inside the liquid coupling cavity, and the pump impeller is used to control the movement speed of the hydraulic oil; An input shaft, the input shaft is connected to the pump impeller through the input shaft connection hole, and the input shaft is used to control the rotation speed of the pump impeller; A turbine, arranged inside the liquid coupling cavity; An output shaft, the output shaft is connected to the turbine through the output shaft connection hole; An oil return part, one end of the oil return part is connected to the liquid coupling cavity, and the other end of the oil return part is connected to the first cavity, and the oil return part is used to control the hydraulic oil in the liquid coupling cavity to flow into the first cavity; The oil return part includes: an oil return pipe, a first scoop tube and a control unit; The control unit is arranged on the oil return pipe, and the control unit is used to control the flow rate of the hydraulic oil in the oil return pipe; [[ID=ST20]]The control unit includes: A collection module, arranged on the oil return pipe, and the collection module is used to obtain the real-time oil discharge amount and the real-time oil temperature; An adjustment module, arranged on the oil return pipe, the adjustment module is used to set the opening degree of the regulating valve, and the adjustment module is also used to judge whether to generate a warning instruction according to the real-time oil temperature data; An oil level mirror, arranged on the oil return pipe, and the oil level mirror is used to monitor the real-time oil level of the hydraulic oil in the liquid coupling cavity.

9. The speed regulating device of the speed regulating hydraulic coupling as described in claim 8, characterized in that, The oil return part includes: A first scoop tube, one end of the first scoop tube is provided with an oil return port, and the end of the first scoop tube with an oil return hole is arranged at the bottom of the liquid coupling cavity, and the hydraulic oil in the liquid coupling cavity flows into the first scoop tube through the oil return pipe; An oil return pipe, one end of the oil return pipe is connected to the first scoop tube, and the other end of the oil return pipe is connected to the box body, and the hydraulic oil in the first scoop tube flows into the first cavity through the oil return pipe.

Images