Testing device for hydraulic coupler and testing method thereof

Abstract

The invention discloses a testing device for a hydraulic coupler and a testing method thereof, and relates to the technical field of test.The testing device for the hydraulic coupler comprises a machine body, a rotating part is arranged on the side edge of the machine body, the end face of the rotating part is connected with a device body through a connecting ring, and a first oil hole and a second oil hole are formed in the device body; an oil injection opening is connected into the first oil hole, a safety pin is inserted into the second oil hole, an oil conveying cavity is formed between the first oil hole and the second oil hole, and a supporting frame is arranged on the outer wall of the device body; the device further comprises a monitoring assembly, the monitoring assembly is arranged in the device body, the temperature and pressure of oil in the second oil hole are monitored through the monitoring assembly, the deformation condition of the device body is judged, the deformation of the coupler can be monitored in time, the deformation of the coupler can be judged without shutdown, and the time for multiple times of shutdown inspection is saved.

Description

Technical Field

[0001] The present invention relates to the field of testing technology, and specifically to a testing device for a hydraulic coupling and a testing method thereof. Background Art

[0002] The test of the working status of the coupling includes torque test under different loads, durability test, and connection and disconnection force or life test. The components of the coupling are subject to cyclic variable loads and are prone to deformation. Before the coupling is put into use, it is necessary to analyze its fatigue life and make an estimate of its life, as well as evaluate its applicability in various application scenarios. Fix one end of the coupling to the turntable with bolts, connect a sensor to the fixed end, connect the other end of the coupling to the motor through a gearbox, start the motor, and drive the coupling to rotate along its own axis. The sensor monitors the values ​​of the coupling under different loads.

[0003] The service life of hydraulic couplings is tested after production. The existing testing method is to place the couplings directly on the detector for testing. The deformation of the shaft is used to determine whether the shaft has reached the limit of its service life. However, the coupling needs to be shut down to measure the deformation degree, which delays working time. Therefore, we propose a testing device and a testing method for hydraulic couplings. Summary of the invention

[0004] The purpose of the present invention is to provide a testing device and a testing method for a hydraulic coupling, so as to solve the problem in the above background technology that the deformation degree of the coupling needs to be measured after the machine is shut down, which delays the working time. To achieve the above purpose, the present invention provides the following technical solutions: In a first aspect, a test device for a hydraulic coupling comprises: a body, a rotating member is arranged on the side of the body, and the end surface of the rotating member is connected to the body through a connecting ring, an oil hole 1 and an oil hole 2 are respectively opened inside the body, an oil filling port is connected inside the oil hole 1, a safety pin is inserted inside the oil hole 2, an oil delivery cavity is arranged between the oil hole 1 and the oil hole 2, and a support frame is arranged on the outer wall of the body; It also includes: a monitoring component, which is arranged inside the device body, and monitors the oil temperature and pressure inside the oil hole 2 through the monitoring component, and judges the deformation condition of the device body through the numerical measurement of temperature and pressure; an auxiliary component, which is arranged on the outer wall of the monitoring component, and assists the lifting of the monitoring component through the auxiliary component, so as to realize the rapid docking of the monitoring component and the device body.

[0005] The monitoring component includes a temperature sensor, a monitoring cavity and a pressure sensor. The temperature sensor is arranged inside the oil filling port, and a detection part 1 is arranged on the end surface of the temperature sensor.

[0006] Among them, the monitoring cavity is opened inside the device body. A pressure sensor is arranged inside the monitoring cavity. A second detection part is arranged on the end face of the pressure sensor. A connecting cavity is arranged between the monitoring cavity and the second oil hole.

[0007] Among them, the test device for the hydraulic coupling further includes: a first deformation coefficient M1 and a second deformation coefficient M2, satisfying: M1 = λ1t / T - f / F; M2 = λ2f / F - t / T; where t is the actual oil temperature inside the oil transmission cavity monitored by the temperature sensor, T is the preset oil temperature inside the oil transmission cavity, f is the actual oil pressure jointly identified and monitored by the pressure sensor and the second detection part, F is the set oil pressure magnitude, λ1 is the first deformation adjustment coefficient, which is related to the type of the oil; λ2 is the second deformation adjustment coefficient, which is related to the sensitivity of the pressure sensor and the elastic modulus of the second detection part.

[0008] Among them, the test device for the hydraulic coupling further includes: a deformation coefficient M, M = (M1 * M2) / (M1 + M2), 0.1 < M ≤ 10; the auxiliary component includes a screw rod. One end of the screw rod is rotatably connected to the surface of the moving plate. The surface of the moving plate is fixedly connected to the temperature sensor and the pressure sensor. The other end of the screw rod is connected with a handle.

[0009] Among them, two sides of the surface of the moving plate are connected with limiting rods, and the limiting rods are inserted into the inside of the rotating ring. A receiving cavity matching the moving plate is opened inside the limiting rods.

[0010] Among them, the side of the rotating ring is rotatably connected with a fixed ring through a bearing. The side of the fixed ring is connected with an insertion cylinder, and a plug rod is inserted into the inside of the insertion cylinder. The end face of the plug rod is fixed on the surface of the support frame.

[0011] Among them, a fixing ring is connected to the outer wall of the pressure sensor, and a rubber ring is glued to the end face of the fixing ring. The rubber ring is inserted into the inside of a rubber socket, and the end face of the rubber socket is glued to the inner wall of the monitoring cavity. An insertion opening matching the rubber ring is opened inside the rubber socket.

[0012] In a second aspect, a method for testing a hydraulic coupling, applying the test device for the hydraulic coupling according to any one of the first aspects above, includes the following steps: S1: Align the positions of the temperature sensor and the pressure sensor with the oil injection port and the monitoring cavity respectively; S2: Insert the temperature sensor into the inside of the oil injection port, and insert the pressure sensor into the inside of the monitoring cavity to realize the docking of the temperature sensor and the pressure sensor with the device body; S3: Judge the deformation condition of the device body by measuring the temperature and pressure values.

[0013] Among them, step S1 includes: when the refueling port finishes refueling and the temperature sensor and the pressure sensor need to be installed and docked, manually push the fixing ring away from the inserting rod. The fixing ring drives the inserting cylinder to move horizontally synchronously. The inserting cylinder slides on the outer wall of the inserting rod until the positions of the temperature sensor and the pressure sensor are respectively aligned with the refueling port and the monitoring cavity. And / or, step S2 includes: rotating the grip. The grip drives the screw rod to rotate synchronously. When the screw rod rotates, it pushes the moving plate to move towards the body until the temperature sensor is inserted into the refueling port and the pressure sensor is inserted into the monitoring cavity, realizing the docking of the temperature sensor and the pressure sensor with the body. And / or, step S3 includes: the first detection part approaches the oil delivery cavity. The temperature of the oil in the oil delivery cavity is directly detected through the first detection part. The pressure in the oil hole 2 is introduced into the connection cavity. The pressure is identified and monitored through the pressure sensor and the second detection part. And the deformation condition of the body is judged through the numerical measurement of the temperature and the pressure.

[0014] The present invention application has at least the following beneficial effects: (1) By monitoring the temperature and pressure inside the body through the temperature sensor and the pressure sensor respectively, it is possible to judge the deformation of the body, which is conducive to timely monitoring the deformation of the coupling. The deformation of the coupling can be judged without stopping the machine, saving the time of multiple shutdown inspections.

[0015] (2) Through the first deformation coefficient M1 and the second deformation coefficient M2, which satisfy: M1 = λ1t / T - f / F; M2 = λ2f / F - t / T, M = (M1 * M2) / (M1 + M2), and 0.1 < M ≤ 10, it is used to reflect the influence of the oil temperature and the oil pressure on the deformation of the hydraulic coupling, and can quantitatively characterize the deformation of the hydraulic coupling, ensuring the normal progress of the test work of the hydraulic coupling. Description of the Drawings

[0016] Figure 1 is a schematic structural diagram of the test device for the hydraulic coupling of the present invention application Figure 1 ; Figure 2 is a schematic structural diagram of the test device for the hydraulic coupling of the present invention application Figure 2 ; Figure 3 is a partial structural schematic diagram of the rotating part and the support frame of the present invention application; Figure 4 is a partial structural schematic diagram of the body and the rotating ring of the present invention application; Figure 5 is a partial structural schematic diagram of the body of the present invention application; Figure 6 is for the present invention application Figure 5The enlarged structural diagram at A in the middle; Figure 7 This is a schematic diagram of the partial structure of the pressure sensor and rubber ring applied for in the present invention.

[0017] In the figure: 1, machine body; 2, rotating part; 31, machine body; 32, connecting ring; 33, oil hole 1; 34, oil filling port; 35, oil hole 2; 36, safety pin; 37, oil delivery cavity; 38, support frame; 4, monitoring component; 41, moving plate; 42, temperature sensor; 43, detection part 1; 44, monitoring cavity; 45, pressure sensor; 46, connecting cavity; 47, detection part 2; 5, auxiliary component; 51, screw; 52, handle; 53. Limit rod; 54. Rotating ring; 55. Storage cavity; 56. Fixed ring; 57. Insertion tube; 58. Insertion rod; 61. Fixed ring; 62. Rubber socket; 63. Rubber ring; 64. Socket; 71. Protection plate; 72. Moving seat; 73. Turn plate; 74. Cavity; 75. Rotating ring; 76. Rack plate; 77. Gear; 78. Motor; 79. Fixed frame; 81. Pressure block 1; 82. Pressure block 2; 83. Fixed plate. DETAILED DESCRIPTION

[0018] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any structural modification, change in proportion relationship or adjustment in size, without affecting the effects and purposes that can be produced by the present invention, should still fall within the scope of the technical contents disclosed by the present invention; at the same time, the terms such as "and" and "or" quoted in this specification are only for the convenience of description, and are not used to limit the scope of implementation. The change or adjustment of their relative relationship should also be regarded as the scope of implementation of the present invention without substantially changing the technical contents; in addition, the various embodiments of the present invention are not independent of each other, but can be combined; The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or suggesting relative importance or implicitly indicating the number of the indicated technical features; thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features; in the description of the present invention application, unless otherwise specified, "multiple" means two or more.

[0019] See also Figures 1 to 7In the first aspect, the present invention provides a test device for a hydraulic coupling, comprising: a body 1, a rotating member 2 is arranged on the side of the body 1, and the end surface of the rotating member 2 is connected to a body 31 through a connecting ring 32, an oil hole 1 33 and an oil hole 2 35 are respectively opened inside the body 31, an oil filling port 34 is connected inside the oil hole 1 33, a safety pin 36 is inserted inside the oil hole 2 35, an oil delivery cavity 37 is arranged between the oil hole 1 33 and the oil hole 2 35, and a support frame 38 is arranged on the outer wall of the body 31; It also includes: a monitoring component 4, which is arranged inside the device body 31. The monitoring component 4 monitors the oil temperature and pressure inside the oil hole 2 35, and determines the deformation state of the device body 31 through numerical measurement of temperature and pressure, which is conducive to timely monitoring the deformation of the coupling. The deformation of the coupling can be determined without stopping the machine, saving the time of multiple shutdowns for inspections.

[0020] In the present application, the auxiliary component 5 is arranged on the outer wall of the monitoring component 4. The auxiliary component 5 assists the lifting and lowering of the monitoring component 4 to achieve rapid docking of the monitoring component 4 with the device body 31. The auxiliary component 5 assists the docking of the monitoring component 4 with the device body 31. After the device body 31 is installed and docked with the machine body 1, the auxiliary monitoring component 4 is quickly and stably connected to the device body 31.

[0021] In the present application, the monitoring component 4 includes a temperature sensor 42, a monitoring chamber 44 and a pressure sensor 45. The temperature sensor 42 is arranged inside the oil filling port 34, and a detection part 43 is arranged on the end face of the temperature sensor 42. The temperature of the oil inside the oil hole 33 is monitored by the temperature sensor 42. The detection part 43 is close to the oil delivery chamber 37. The detection part 43 directly contacts the oil inside the oil delivery chamber 37, so that the temperature monitoring of the detection part 43 is more accurate. By monitoring the temperature, the change of the temperature inside the chamber is judged. For example, when the temperature exceeds the normal temperature, the temperature is too high, indicating that the internal oil is in a high temperature state, the friction coefficient inside the body 31 increases, and the body is at risk of deformation. The signal is transmitted to the controller, and the controller issues a warning, indicating that the coupling is at risk of deformation, which is conducive to monitoring the life of the coupling and detecting fatigue without stopping the machine.

[0022] The monitoring chamber 44 is opened inside the body 31, and a pressure sensor 45 is arranged inside the monitoring chamber 44. A detection part 47 is arranged on the end face of the pressure sensor 45. A connecting chamber 46 is arranged between the monitoring chamber 44 and the oil hole 35. The pressure inside the oil hole 35 is introduced through the connecting chamber 46, and the pressure is identified and monitored by the pressure sensor 45 and the detection part 47. When the coupling is deformed and the oil leaks, the pressure inside the monitoring chamber 44 is detected to be suddenly reduced through the pressure sensor 45, and the coupling is at risk of deformation, which is conducive to judging the pressure inside the connecting chamber 46. The controller monitors the pressure signal and judges the deformation of the coupling and the test risk through the monitoring of the temperature monitoring signal and the pressure monitoring signal.

[0023] In the present application, the auxiliary component 5 includes a screw 51, one end of which is rotatably connected to the surface of the movable plate 41, and the surface of the movable plate 41 is fixedly connected to the temperature sensor 42 and the pressure sensor 45, and the other end of the screw 51 is connected to a handle 52. When the temperature sensor 42 and the pressure sensor 45 need to be docked with the device body 31, the handle 52 is rotated, and the handle 52 drives the screw 51 to rotate synchronously. The screw 51 rotates to push the movable plate 41 toward the device body 31 until the temperature sensor 42 is inserted into the inside of the oil filling port 34 and the pressure sensor 45 is inserted into the inside of the monitoring cavity 44, thereby realizing the docking operation of the temperature sensor 42 and the pressure sensor 45 with the device body 31, and can make the docking process of the temperature sensor 42 and the pressure sensor 45 with the device body 31 very stable.

[0024] In the present application, limiting rods 53 are connected to both sides of the surface of the movable plate 41, and the limiting rods 53 are inserted into the interior of the rotating ring 54, the screw 51 is threadedly connected to the rotating ring 54, and the interior of the rotating ring 54 is provided with a threaded groove that cooperates with the screw 51, and the interior of the limiting rods 53 is provided with a storage cavity 55 that cooperates with the movable plate 41. The movement of the movable plate 41 is limited by the limiting rods 53, and the movable plate 41 will not rotate with the rotation of the screw 51, so that the movement of the movable plate 41 is more stable. The storage of the movable plate 41 is achieved through the storage cavity 55. When the movable plate 41 moves in a direction away from the device body 31, the movable plate 41 can be stored in the storage cavity 55.

[0025] In the present application, the side of the rotating ring 54 is rotatably connected to the fixed ring 56 through the bearing, the side of the fixed ring 56 is connected to the insert tube 57, and the insert tube 57 is inserted with an insert rod 58, and the end face of the insert rod 58 is fixed to the surface of the support frame 38, the interior of the rotating ring 54 is provided with a carbon ring 1, and the side of the fixed ring 56 is provided with a carbon ring 2, the carbon ring 1 and the carbon ring 2 are fitted together, the carbon ring 1 inside the rotating ring 54 is electrically connected to the temperature sensor 42 and the pressure sensor 45, and the carbon ring 2 inside the fixed ring 56 is connected to the power supply. This design belongs to the prior art and will not be elaborated here. When the oil filling port 34 is filled with oil, the temperature sensor 4 2 and the pressure sensor 45 need to be installed and docked, manually push the fixing ring 56 in the direction away from the insertion rod 58, the fixing ring 56 drives the insert tube 57 to move horizontally synchronously, and the insert tube 57 slides on the outer wall of the insert rod 58 until the positions of the temperature sensor 42 and the pressure sensor 45 are aligned with the oil filling port 34 and the monitoring cavity 44 respectively, which is conducive to the rapid movement of the temperature sensor 42 and the pressure sensor 45, and realizes the precise docking of the temperature sensor 42 and the pressure sensor 45. When the device body 31 rotates for testing, it synchronously drives the rotating ring 54 to rotate, and the side of the rotating ring 54 rotates on the surface of the fixing ring 56.

[0026] In the present application, the outer wall of the pressure sensor 45 is connected to a fixing ring 61, and a rubber ring 63 is glued to the end face of the fixing ring 61, and the rubber ring 63 is inserted into the inside of a rubber socket 62, and the end face of the rubber socket 62 is glued to the inner wall of the monitoring cavity 44, and a socket 64 matching the rubber ring 63 is provided inside the rubber socket 62. When the pressure sensor 45 is inserted into the inside of the monitoring cavity 44, the rubber ring 63 is tightly engaged with the inside of the rubber socket 62, realizing the sealing operation of the fixing ring 61 and the rubber socket 62, which is beneficial for the pressure sensor 45 to monitor the pressure.

[0027] On the basis of the connection between the temperature sensor, pressure sensor and the body, and the monitoring of pressure signals and temperature signals by the temperature sensor and pressure sensor, when the temperature monitoring values ​​and pressure monitoring values ​​are obtained, there is a technical problem of how to judge the deformation of the coupling and the test risk. To this end, the present invention application also proposes a corresponding technical solution for deformation monitoring, which is used to judge the deformation of the hydraulic coupling. Accordingly, in the present invention application, the test device for the hydraulic coupling may also include: a first deformation coefficient M1 and a second deformation coefficient M2, wherein: M1=λ1t / Tf / F; M2=λ2f / Ft / T; Among them, t is the actual temperature of the oil inside the oil delivery cavity monitored by the temperature sensor, T is the preset oil temperature inside the oil delivery cavity, f is the actual pressure jointly identified and monitored by the pressure sensor and the detection part 2, F is the set oil pressure, λ1 is the first deformation adjustment coefficient, which is related to the oil model; λ2 is the second deformation adjustment coefficient, which is related to the sensitivity of the pressure sensor and the elastic modulus of the detection part 2.

[0028] In the present application, λ1 is the setting of the first deformation adjustment coefficient, which can make the first deformation coefficient M1 used to mainly reflect the influence of oil temperature on the deformation of the hydraulic coupling; λ2 is the setting of the second deformation adjustment coefficient, which can make the second deformation coefficient M2 used to mainly reflect the influence of oil pressure on the deformation of the hydraulic coupling, so that the deformation of the hydraulic coupling can be quantitatively characterized to ensure the normal testing of the hydraulic coupling.

[0029] In the present application, of course, the deformation conditions of the first deformation coefficient M1 and the second deformation coefficient M2 can be comprehensively compared and analyzed to calculate the deformation coefficient M of the test device for the hydraulic coupling, which can also be used to quantitatively analyze or quantitatively describe the deformation of the hydraulic coupling to ensure that the test work of the existing hydraulic coupling is carried out normally, and then complete the test of the current hydraulic coupling, where: M=(M1*M2) / (M1+M2), 0.1 <M≤10。

[0030] It should be noted that the above λ1 and λ2 may also be theoretical calculation analysis parameters or empirical parameters, the value range of the above λ1 is 1.0 to 5.5, the value range of λ2 is 1.0 to 15.0, and the deformation coefficient ratio M may be 0.1, 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0, 10, preferably, 2.0≤M≤7.0, or the value range between the above values. Of course, technicians can reasonably set the value size or range of λ1, λ2, M1, and M2 according to actual conditions.

[0031] In a second aspect, the present invention provides a method for testing a hydraulic coupling, using the testing device for a hydraulic coupling described in any embodiment of the first aspect, comprising the following steps: S1: The positions of the temperature sensor 42 and the pressure sensor 45 are aligned with the oil filling port 34 and the monitoring cavity 44 respectively; Specifically, in the present application, step S1 includes: when the oil filling port 34 is filled with oil, the temperature sensor 42 and the pressure sensor 45 need to be installed and docked, the fixing ring 56 is manually pushed in a direction away from the insertion rod 58, and the fixing ring 56 drives the insertion tube 57 to move laterally synchronously, and the insertion tube 57 slides on the outer wall of the insertion rod 58 until the positions of the temperature sensor 42 and the pressure sensor 45 are aligned with the oil filling port 34 and the monitoring cavity 44 respectively; S2: The temperature sensor 42 is inserted into the oil filling port 34 , and the pressure sensor 45 is inserted into the monitoring cavity 44 , so as to achieve docking between the temperature sensor 42 and the pressure sensor 45 and the body 31 ; Specifically, in the present application, step S2 includes: rotating the handle 52, the handle 52 drives the screw 51 to rotate synchronously, the screw 51 rotates, and pushes the movable plate 41 to move toward the device body 31, until the temperature sensor 42 is inserted into the inside of the oil filling port 34, and the pressure sensor 45 is inserted into the inside of the monitoring cavity 44, so as to achieve the docking of the temperature sensor 42 and the pressure sensor 45 with the device body 31; S3: Determine the deformation status of the body 31 by measuring the temperature and pressure values; Specifically, in the present application, step S3 includes: the detection part 43 is close to the oil delivery chamber 37, the temperature inside the oil delivery chamber 37 is directly contacted by the detection part 43, the pressure inside the oil hole 35 is introduced into the connecting chamber 46, the pressure is identified and monitored by the pressure sensor 45 and the detection part 47, and the deformation condition of the body 31 is judged by the numerical measurement of temperature and pressure.

[0032] In the present application, the following steps may be further included in the process of determining the deformation status of the body 31: Step S31: Calculate the first deformation coefficient M1 and the second deformation coefficient M2, satisfying: M1=λ1t / Tf / F, M2=λ2f / Ft / T; wherein, t is the actual temperature of the oil inside the oil delivery cavity monitored by the temperature sensor, T is the preset oil temperature inside the oil delivery cavity, f is the actual oil pressure jointly identified and monitored by the pressure sensor and the detection part 2, F is the set oil pressure, λ1 is the first deformation adjustment coefficient, which is related to the oil model; λ2 is the second deformation adjustment coefficient, which is related to the sensitivity of the pressure sensor and the elastic modulus of the detection part 2.

[0033] In the present application, λ1 is the setting of the first deformation adjustment coefficient, which can make the first deformation coefficient M1 used to mainly reflect the influence of oil temperature on the deformation of the hydraulic coupling; λ2 is the setting of the second deformation adjustment coefficient, which can make the second deformation coefficient M2 used to mainly reflect the influence of oil pressure on the deformation of the hydraulic coupling, so that the deformation of the hydraulic coupling can be quantitatively characterized, which is convenient for judging the deformation of the hydraulic coupling.

[0034] Step S32: Calculate the deformation coefficient M, where M = (M1 * M2) / (M1 + M2). When 0.1 < M ≤ 10 is satisfied, the deformation of the hydraulic coupling is still within the test range, and the test can continue; otherwise, the hydraulic coupling is stopped by the test device, and the current test of the hydraulic coupling is ended.

[0035] In the present invention application, the deformation situations of the first deformation coefficient M1 and the second deformation coefficient M2 can be comprehensively compared and analyzed, and the deformation coefficient M of the test device for the hydraulic coupling is calculated, where M = (M1 * M2) / (M1 + M2) and 0.1 < M ≤ 10. Furthermore, it can be used for quantitative analysis or quantitative description of the deformation situation of the hydraulic coupling. When 0.1 < M ≤ 10 is satisfied, the deformation of the hydraulic coupling is still within the test range, and the test of the hydraulic coupling can continue; otherwise, the hydraulic coupling is stopped by the test device, and the current test of the hydraulic coupling is ended, thereby ensuring the normal progress of the test work of the hydraulic coupling.

[0036] The test method for the hydraulic coupling of the present invention application can monitor the temperature and pressure inside the device body through the temperature sensor and the pressure sensor respectively, judge the deformation situation and test risk of the device body, which is beneficial to timely monitor the deformation of the coupling, and can also quantitatively analyze or quantitatively describe the deformation situation of the hydraulic coupling. The deformation of the coupling can be judged without stopping the machine, saving the time of multiple shutdown inspections.

[0037] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0038] Although the embodiments of the present invention application have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention application. The scope of the present invention application is defined by the appended claims and their equivalents.

Claims

1. A test device for a hydraulic coupling, comprising: Machine body (1), a rotating part (2) is arranged on the side of the machine body (1), and the end face of the rotating part (2) is connected with an implement body (31) through a connecting ring (32). An oil hole one (33) and an oil hole two (35) are respectively arranged inside the implement body (31). An oil injection port (34) is connected inside the oil hole one (33), and a safety pin (36) is inserted inside the oil hole two (35). An oil transmission cavity (37) is arranged between the oil hole one (33) and the oil hole two (35). A support frame (38) is arranged on the outer wall of the implement body (31); It is characterized in that it further includes: A monitoring component (4), the monitoring component (4) is arranged inside the implement body (31). The oil temperature and pressure inside the oil hole two (35) are monitored through the monitoring component (4). The deformation condition of the implement body (31) is judged through the numerical measurement of the temperature and pressure. An auxiliary component (5), the auxiliary component (5) is arranged on the outer wall of the monitoring component (4). The lifting of the monitoring component (4) is assisted through the auxiliary component (5) to realize the quick docking of the monitoring component (4) and the implement body (31).

2. The testing device for hydraulic coupling according to claim 1, characterized in that: The monitoring component (4) includes a temperature sensor (42), a monitoring cavity (44) and a pressure sensor (45). The temperature sensor (42) is arranged inside the oil injection port (34), and a detection part one (43) is arranged on the end face of the temperature sensor (42).

3. The testing device for hydraulic coupling according to claim 2, characterized in that: The monitoring cavity (44) is arranged inside the implement body (31). A pressure sensor (45) is arranged inside the monitoring cavity (44). A detection part two (47) is arranged on the end face of the pressure sensor (45). A connecting cavity (46) is arranged between the monitoring cavity (44) and the oil hole two (35).

4. The testing device for hydraulic coupling according to claim 3, characterized in that: The hydraulic coupling testing device further includes: a first deformation coefficient M1 and a second deformation coefficient M2, satisfying: M1 = λ1t / T - f / F; M2 = λ2f / F - t / T; where t is the actual oil temperature inside the oil transmission cavity monitored by the temperature sensor, T is the preset oil temperature inside the oil transmission cavity, f is the actual oil pressure jointly identified and monitored by the pressure sensor and the detection part two, F is the set oil pressure magnitude, λ1 is the first deformation adjustment coefficient, which is related to the type of the oil; λ2 is the second deformation adjustment coefficient, which is related to the sensitivity of the pressure sensor and the elastic modulus of the detection part two.

5. The testing device for hydraulic coupling according to claim 4, characterized in that: The hydraulic coupling testing device further includes: a deformation coefficient M, M = (M1 * M2) / (M1 + M2), 0.1 < M ≤ 10; The auxiliary component (5) includes a screw rod (51). One end of the screw rod (51) is rotatably connected to the surface of a moving plate (41). The surface of the moving plate (41) is fixedly connected with the temperature sensor (42) and the pressure sensor (45). The other end of the screw rod (51) is connected with a handle (52).

6. The testing device for hydraulic coupling according to claim 5, characterized in that: Limit rods (53) are connected to both sides of the surface of the moving plate (41), and the limit rods (53) are inserted inside a rotating ring (54). A receiving cavity (55) matching the moving plate (41) is arranged inside the limit rods (53).

7. The testing device for hydraulic coupling according to claim 6, characterized in that: The side of the rotating ring (54) is rotatably connected to a fixed ring (56) via a bearing, the side of the fixed ring (56) is connected to an insertion tube (57), and an insertion rod (58) is inserted into the interior of the insertion tube (57), and the end surface of the insertion rod (58) is fixed to the surface of the support frame (38).

8. The testing device for hydraulic coupling according to claim 7, characterized in that: The outer wall of the pressure sensor (45) is connected to a fixing ring (61), and a rubber ring (63) is glued to the end surface of the fixing ring (61), and the rubber ring (63) is inserted into the interior of a rubber socket (62), and the end surface of the rubber socket (62) is glued to the inner wall of the monitoring cavity (44), and a socket (64) matching with the rubber ring (63) is provided inside the rubber socket (62).

9. A method for testing a hydraulic coupling, using the testing device for a hydraulic coupling as claimed in claim 7 or 8, characterized in that: The following steps are involved: S1: The positions of the temperature sensor and the pressure sensor are aligned with the oil filling port and the monitoring cavity respectively; S2: The temperature sensor is inserted into the oil filling port, and the pressure sensor is inserted into the monitoring cavity to achieve docking between the temperature sensor and the pressure sensor and the body; S3: Determine the deformation condition of the device body through numerical measurements of temperature and pressure.

10. A hydraulic coupling testing method according to claim 9, characterized in that: Step S1 includes: after the oil filling port is filled with oil, when the temperature sensor and the pressure sensor need to be installed and docked, the fixing ring is manually pushed in a direction away from the insertion rod, and the fixing ring drives the insertion tube to move horizontally synchronously, and the insertion tube slides on the outer wall of the insertion rod until the positions of the temperature sensor and the pressure sensor are aligned with the oil filling port and the monitoring cavity respectively; And / or, step S2 includes: rotating the handle, the handle drives the screw to rotate synchronously, the screw rotates, and pushes the movable plate to move in a direction close to the device body until the temperature sensor is inserted into the oil filling port, and the pressure sensor is inserted into the monitoring cavity, so as to achieve docking of the temperature sensor and the pressure sensor with the device body; And / or, step S3 includes: the detection part 1 is close to the oil delivery chamber, the temperature inside the oil delivery chamber is directly contacted by the detection part 1, the pressure inside the oil hole 2 is introduced into the connecting chamber, the pressure is identified and monitored by the pressure sensor and the detection part 2, and the deformation condition of the device body is determined by the numerical measurement of temperature and pressure.

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