An adjustable oil injection experimental device and experimental method for a gearbox oil injection lubrication system

Abstract

The present invention provides an adjustable oil injection experimental device and an experimental method for a gearbox oil injection lubrication system, which relates to the field of gearbox testing technology, and includes a test bench, a simulated gearbox is placed on the upper surface of the test bench, and an adjustment mechanism is arranged on the test bench. The device can quickly adjust the oil injection position and oil injection angle of the oil injection pipe, and the setting of the opening above the simulated gearbox allows the tester to directly observe the injection trajectory of the lubricating oil and the distribution of the lubricating oil on the gear, which can help the tester to quickly and preliminarily determine the oil injection position and oil injection angle. After preliminarily determining the position of the oil injection pipe, the oil injection position and angle of the oil injection pipe are gradually adjusted, so that the tester can test the lubrication performance of the simulated gearbox under different oil injection angle lubrication conditions, which can help determine the approximate oil injection position and oil injection angle range.

Description

Technical Field

[0001] The invention belongs to the technical field of gearbox testing, and specifically provides an adjustable oil injection experimental device and an experimental method for a gearbox oil injection lubrication system. Background Art

[0002] The gearbox is also called the transmission. The gears of the gearbox will generate a lot of heat due to friction during transmission, and the gearbox gears need to be lubricated and cooled in time. For high-speed transmission gears, lubricating oil is often sprayed onto the gear surface through an oil spray nozzle for lubrication and cooling. Without proper lubrication, the gears may suffer various types of damage, such as tooth surface wear, tooth surface pitting, tooth surface bonding, gear tooth breakage and plastic deformation, etc., which will affect the performance and service life of the gears.

[0003] The gearbox lubrication experimental test is an experimental method for evaluating the lubrication performance of the gearbox. Its main purpose is to determine the lubrication effect of the gearbox under different working conditions. In the process of oil spray lubrication design, parameters such as the layout orientation and layout angle of the oil spray nozzle are very important. If the oil on the surface of the gearbox gear is unevenly distributed, the friction loss will increase. However, there are few devices for performing gearbox lubrication experimental tests through oil spray lubrication in the prior art, and it is also inconvenient to quickly change the oil spray angle and position. Therefore, the present invention proposes an adjustable oil spray experimental device and experimental method for a gearbox oil spray lubrication system to make up for and improve the shortcomings of the prior art. Summary of the invention

[0004] In view of the defects existing in the prior art, the present invention provides an adjustable oil injection experimental device and an experimental method for a gearbox oil injection lubrication system, which can effectively solve the relevant technical problems raised by the background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] The invention discloses an adjustable oil injection experimental device for a gearbox oil injection lubrication system, comprising a test bench, a simulated gear box is placed on the upper surface of the test bench, and is characterized in that an adjusting mechanism is arranged on the test bench, the adjusting mechanism comprises a main frame body fixedly connected to the test bench, a frame body 1 is slidably connected to the top of the main frame body, two limit rods are fixedly connected to the top of the frame body 1, two connecting sleeve blocks are slidably connected to each limit rod, a frame body 2 is commonly fixedly connected to the top of the four connecting sleeve blocks, a top plate is fixedly connected to the top of the frame body 2, an electric cylinder is fixedly installed at the bottom of the top plate, an X-direction motor is fixedly installed on the main frame body, an X-direction lead screw is fixedly connected to the output shaft of the X-direction motor, the X-direction lead screw is rotatably connected to the main frame body, an X-direction drive block is fixedly connected to the bottom of the frame body 1, the X-direction drive block is threadedly connected to the X-direction lead screw, a Y-direction motor is fixedly installed on the frame body 1, a Y-direction lead screw is fixedly connected to the output shaft of the Y-direction motor, the Y-direction lead screw is rotatably connected to the frame body 1, a Y-direction drive block is fixedly connected to the bottom of the frame body 2, and the Y-direction drive block is threadedly connected to the Y-direction lead screw;

[0007] A mounting plate is fixedly connected to the telescopic shaft below the electric cylinder, an arc-shaped plate is fixedly connected to the bottom of the mounting plate, an arc-shaped rack is fixedly connected to the bottom edge of one side of the arc-shaped plate, a sliding sleeve is slidably connected to the arc-shaped plate, a servo motor is fixedly connected to the side of the sliding sleeve close to the arc-shaped rack, an adjusting gear is fixedly connected to the output shaft of the servo motor, the adjusting gear and the arc-shaped rack are meshed with each other, a pipe clamp is fixedly connected to the side of the sliding sleeve away from the arc-shaped rack, and an oil injection pipe is fixedly connected to the pipe clamp;

[0008] A protective mechanism is arranged on the sliding sleeve block, and the protective mechanism comprises a fixed frame plate fixedly connected to the sliding sleeve block, the fixed frame plate is fixedly connected to an electric telescopic rod, a tooth plate is fixedly connected to the telescopic shaft of the electric telescopic rod, a rectangular frame is fixedly connected to the bottom of the sliding sleeve block, and the rectangular frame is rotatably connected to two shaft bodies on one side close to the injection pipe, a semi-ring sleeve is fixedly connected to the middle part of each shaft body, and a coupling gear is fixedly connected to one end of each shaft body close to the tooth plate.

[0009] Preferably, an oil box is provided below the semi-ring sleeve, two pressure rods are symmetrically fixedly connected to the side of the tooth plate close to the oil injection pipe, a sealing cover is fixedly connected to the bottom of the rectangular frame, two L-shaped plates are symmetrically fixedly connected to the sealing cover, an end of the L-shaped plate away from the sealing cover is fixedly connected to a slot frame, a withdrawal block is slidably connected to the slot frame, the top surface of the withdrawal block is an inclined surface, and the end of the pressure rod away from the tooth plate is abutted against the inclined surface of the adjacent withdrawal block, a cross bar is fixedly connected to the side of the withdrawal block close to the oil box, a disassembly assembly is provided between the cross bar and the oil box, and a horizontal spring is provided between the withdrawal block and the adjacent slot frame.

[0010] Preferably, the portion where the retreat block is slidably connected to the slot frame is dovetail-shaped.

[0011] Preferably, the oil container is made of transparent material.

[0012] Preferably, the disassembly assembly includes two fixed blocks symmetrically fixedly connected to the outer wall of the oil box, the fixed blocks are provided with sockets, one end of the cross bar close to the fixed block is fixedly connected to a fixed cylinder, an end of the fixed cylinder away from the cross bar is movably connected to an insertion rod, the end of the insertion rod away from the fixed cylinder is plug-matched with an adjacent socket, the part where the insertion rod and the adjacent socket are plugged in is rectangular, and an internal spring is arranged between the insertion rod and the adjacent fixed cylinder.

[0013] Preferably, a fixed axis plate is fixedly connected to the outer ring surface of the semi-annular sleeve, and a rotating rod is rotatably connected to the end of the fixed axis plate away from the semi-annular sleeve, a clockwork spring is connected between the rotating rod and the fixed axis plate, a knocking rod is movably inserted on the semi-annular sleeve, and a T-shaped plate is fixedly connected to the end of the knocking rod away from the semi-annular sleeve, a reset spring is connected between the T-shaped plate and the adjacent semi-annular sleeve, a cam is fixedly connected to the end of the rotating rod close to the adjacent T-shaped plate, the T-shaped plate is arranged corresponding to the position of the cam, a ratchet is fixedly connected to the end of the rotating rod away from the T-shaped plate, and two arc-shaped bevel racks are symmetrically fixedly connected to the rectangular frame, the positions of the two arc-shaped bevel racks are respectively arranged corresponding to the positions of the two ratchets, and inclined teeth are evenly arranged on the arc-shaped bevel rack.

[0014] Preferably, one end of the knock rod close to the fuel injection pipe is made of rubber.

[0015] The present invention also discloses an adjustable oil injection test method for a gearbox oil injection lubrication system, using the above-mentioned adjustable oil injection test device for the gearbox oil injection lubrication system, the method comprises the following steps:

[0016] Step 1: Install the simulated gearbox on the surface of the test bench;

[0017] Step 2: Start the electric telescopic rod to drive the toothed plate and the pressure rod to move downward. The pressure rod presses the inclined surface of the retreat block downward, thereby driving the oil box to move away from under the semi-ring sleeve. The toothed plate continues to move downward until it meshes with the coupling gear. The toothed plate moves downward to drive the two coupling gears to rotate, thereby driving the two shafts and the two semi-ring sleeves to rotate. The toothed plate continues to move downward until the oil box moves horizontally to under the sealing cover.

[0018] Step 3: The X-axis motor drives the X-axis screw to rotate, thereby driving the frame 1 to move in the X-axis direction, and the Y-axis motor drives the Y-axis screw to rotate, thereby driving the frame 2 and the mounting plate to move in the Y-axis direction, so as to adjust the injection position of the injection pipe in the X-axis direction and the Y-axis direction, and then the servo motor drives the adjustment gear to rotate, thereby driving the sliding sleeve to make an arc motion along the trajectory of the arc plate, so as to adjust the injection angle of the injection pipe, and then the injection pipe is used to perform an oil injection lubrication experiment on the simulated gearbox, and the external test equipment is used for detection;

[0019] Step 4: After the experiment is completed, the injection angle of the fuel injection pipe is adjusted by the servo motor to make the fuel injection pipe vertically placed, and then the tooth plate and the pressure rod are driven to move upward by the electric telescopic rod, thereby driving the two semi-rings to rotate, and when the tooth plate moves upward, the horizontal spring resets and drives the oil box to move and reset. When the tooth plate moves upward to the initial position, the two semi-rings are close together and the oil box is again located under the two semi-rings, thereby shielding and protecting the fuel injection pipe.

[0020] Beneficial effects of the present invention:

[0021] The gearbox lubrication experimental test device can quickly and conveniently adjust the position of the oil injection pipe in the X and Y axis directions, so that when the external oil pump sprays the lubricating oil from the oil injection pipe to the inside of the simulated gearbox through the oil delivery hose, the position of the oil injection pipe spraying the lubricating oil to the inside of the simulated gearbox can be changed in real time. At the same time, the external oil pump can perform intermittent oil injection or change the oil injection pressure and oil injection amount, thereby providing more comprehensive test data for testers to perform oil injection lubrication detection;

[0022] During the oil injection test, the servo motor can also be used to drive the oil injection pipe to rotate, so as to adjust the oil injection angle of the oil injection pipe. By changing the oil injection angle of the oil injection pipe, the angle of the lubricating oil sprayed by the oil injection pipe to the inside of the simulated gearbox can be adjusted in real time, so that the tester can quickly adjust the oil injection position and oil injection angle of the oil injection pipe. The opening above the simulated gearbox allows the tester to directly observe the injection trajectory of the lubricating oil and the distribution of the lubricating oil on the gear, which can help the tester quickly and preliminarily determine the oil injection position and oil injection angle. After preliminarily determining the position of the oil injection pipe, the oil injection position and angle of the oil injection pipe are gradually adjusted, so that the tester can test the lubrication performance of the simulated gearbox under different oil injection angle lubrication conditions, which can help determine the approximate oil injection position and oil injection angle range, and can quickly screen out some feasible parameter combinations to provide direction for subsequent more accurate tests.

[0023] Two half-rings and an oil container are used to form a closed shield on the lower outside of the fuel injection pipe, reducing the adhesion of air and impurities in the external environment to the fuel injection pipe, reducing the blockage of the part where the fuel injection pipe sprays lubricating oil, and improving the stability of the fuel injection pipe in subsequent test operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a three-dimensional structural schematic diagram of the main frame, frame body 1 and frame body 2 of the present invention;

[0026] Figure 3It is a three-dimensional structural schematic diagram of the components such as the mounting plate, the arc plate and the sliding sleeve block of the present invention;

[0027] Figure 4 It is a three-dimensional structural schematic diagram of the pipe clamp and the fuel injection pipe and other components of the present invention;

[0028] Figure 5 It is a three-dimensional structural schematic diagram of the frame plate, rectangular frame, tooth plate and other components of the present invention;

[0029] Figure 6 It is a three-dimensional structural schematic diagram of the components such as the pressure rod, the retreat block and the tank frame of the present invention;

[0030] Figure 7 It is a three-dimensional structural schematic diagram of the shaft body, half ring sleeve and oil container and other components of the present invention;

[0031] Figure 8 It is a three-dimensional structural schematic diagram of the sealing cover, the coupling gear and the fixing block of the present invention;

[0032] Fig. 9 It is a three-dimensional structural schematic diagram of the fixing block, the plug hole and the plug rod and other components of the present invention;

[0033] Fig.10 It is a three-dimensional structural schematic diagram of the fixed axis plate, rotating rod, ratchet and other components of the present invention;

[0034] Fig.11 It is a schematic diagram of the three-dimensional structure of the knocking rod, T-shaped plate, arc-shaped bevel rack and other components of the present invention.

[0035] The numbers in the figure represent:

[0036] 1, test bench; 11, simulated gearbox;

[0037] 12, main frame; 13, frame one; 14, frame two; 15, top plate; 151, electric cylinder; 152, mounting plate; 16, X-axis motor; 17, X-axis lead screw; 18, X-axis drive block; 19, Y-axis motor; 110, Y-axis lead screw; 111, Y-axis drive block; 112, limit rod; 113, connecting sleeve block; 114, arc plate; 115, arc rack; 116, sliding sleeve block; 117, servo motor; 118, adjusting gear; 119, pipe clamp; 120, fuel injection pipe;

[0038] 21, fixed frame plate; 22, electric telescopic rod; 23, rectangular frame; 24, shaft body; 25, semi-ring sleeve; 26, tooth plate; 27, connecting gear; 28, pressure rod; 29, sealing cover; 210, L-shaped plate; 211, slot frame; 212, retreat block; 213, horizontal spring; 214, cross bar; 215, oil container;

[0039] 31, fixed block; 32, plug hole; 33, fixed cylinder; 34, plug rod;

[0040] 41, fixed axis plate; 42, rotating rod; 43, ratchet; 44, spring; 45, cam; 46, arc-shaped bevel rack; 47, knocking rod; 48, T-shaped plate; 49, return spring. DETAILED DESCRIPTION

[0041] The present invention will be further described below in conjunction with the embodiments.

[0042] like Figure 1 , Figure 2 As shown, an adjustable oil injection experimental device for a gearbox oil injection lubrication system includes a test bench 1, on the upper surface of which is placed a simulated gearbox 11, which is an integrated structure with an upper opening. When the simulated gearbox 11 is subjected to experimental testing, it is firmly mounted on the upper surface of the test bench 1 by means of an existing fixture to ensure the stability of the simulated gearbox 11 during testing. An adjustment mechanism is provided on the test bench 1, and the adjustment mechanism includes a main frame 12 fixedly connected to the test bench 1, a frame 13 is slidably connected to the top of the main frame 12, a slide groove is provided on the main frame 12, and the frame 13 can only be horizontally displaced in the slide groove. Two limit rods 112 are fixedly connected to the top of frame 13, and two connecting sleeves 113 are slidably connected to each limit rod 112. The tops of the four connecting sleeves 113 are commonly fixedly connected to frame 2 14, and the top of frame 2 14 is fixedly connected to a top plate 15, and an electric cylinder 151 is fixedly installed at the bottom center of the top plate 15. An X-axis motor 16 is fixedly installed on one side of the main frame 12, and an X-axis lead screw 17 is fixedly connected to the output shaft of the X-axis motor 16, and the end of the X-axis lead screw 17 away from the X-axis motor 16 is rotatably connected to the main frame 12. An X-axis driving block 18 is fixedly connected to a position at the bottom of the frame 13 corresponding to the X-axis lead screw 17, and the X-axis driving block 18 is threadedly connected to the X-axis lead screw 17. A Y-axis motor 19 is fixedly installed on the top of one side of the frame 13, and a Y-axis lead screw 110 is fixedly connected to the output shaft of the Y-axis motor 19. The Y-axis lead screw 110 is rotatably connected to the frame 13. A Y-axis driving block 111 is fixedly connected to a position at the bottom of the frame 2 14 corresponding to the Y-axis lead screw 110, and the Y-axis driving block 111 is threadedly connected to the Y-axis lead screw 110.

[0043] like Figures 1 to 4As shown, a mounting plate 152 is fixedly connected to the telescopic shaft below the electric cylinder 151, an arc plate 114 is fixedly connected to the bottom of the mounting plate 152, an arc rack 115 is fixedly connected to the bottom edge of one side of the arc plate 114, a sliding sleeve 116 is slidably connected to the side of the arc plate 114 away from the mounting plate 152, a servo motor 117 is fixedly connected to the side of the sliding sleeve 116 close to the arc rack 115, an adjusting gear 118 is fixedly connected to the output shaft of the servo motor 117, and the adjusting gear 118 and the arc rack 115 are slidably connected to the side of the arc plate 114 away from the mounting plate 152. They are meshed with each other, and a side of the sliding sleeve 116 away from the arc-shaped rack 115 is fixedly connected to a pipe clamp 119, and an injection pipe 120 is fixedly connected to the pipe clamp 119. The upper end of the injection pipe 120 is connected to one end of an external oil pump through an oil delivery hose. Specifically, the external oil pump is fixedly installed on the main frame 12, and a filter box for filtering lubricating oil is also installed on the upper surface of the test bench 1 close to the external oil pump. One side of the filter box is connected to the external oil pump through an oil drain pipe, and the other side is connected to the oil outlet on the simulated gear box 11 through a circulation recovery pipe.

[0044] The upper surface of the test bench 1 is used for the test personnel to manually install the test equipment for testing the lubrication performance of the simulated gear box 11, such as: dynamometer, torque detection sensor, lubricating oil flow monitor and pressure sensor, etc. The test equipment is a known technology, so it is not described here. In this embodiment, the X-axis motor 16, the Y-axis motor 19, the servo motor 117, the oil injection pipe 120, the external oil pump and the electric telescopic rod 22 are all electrically connected to the external controller. When in use, the test personnel can control it through the controller.

[0045] During use: When the simulated gear box 11 is firmly placed on the upper surface of the test bench 1 and is located directly below the main frame 12, start the X-axis motor 16 to enable its output shaft to rotate, thereby driving the X-axis lead screw 17 to rotate synchronously. As the X-axis lead screw 17 rotates, the frame 13 is driven by the X-axis drive block 18 to slide horizontally along the slide groove on the top surface of the main frame 12, thereby driving the frame 2 14, the top plate 15, the electric cylinder 151, the mounting plate 152 and the injection pipe 120 to move horizontally synchronously, so that the injection pipe 120 can be horizontally displaced in the X-axis direction to quickly adjust the position of the injection pipe 120 in the X-axis direction.

[0046] By starting the Y-axis motor 19, its output shaft can rotate, thereby driving the Y-axis lead screw 110 to rotate synchronously. As the Y-axis lead screw 110 rotates, the Y-axis drive block 111 drives the frame 14 and the connecting sleeve block 113 to move along the trajectory of the limit rod 112, and can be horizontally displaced in the Y-axis direction, thereby driving the frame 14, the top plate 15, the electric cylinder 151, the mounting plate 152 and the injection pipe 120 to be displaced synchronously, so that the injection pipe 120 can also be horizontally displaced in the Y-axis direction to quickly adjust the position of the injection pipe 120 in the Y-axis direction.

[0047] Therefore, through the cooperation of the X-axis motor 16 and the Y-axis motor 19, the position of the oil injection pipe 120 in the X and Y axis directions can be adjusted quickly and conveniently. When the external oil pump sprays the lubricating oil from the oil injection pipe 120 to the inside of the simulated gear box 11 through the oil delivery hose, the position of the oil injection pipe 120 for spraying the lubricating oil into the inside of the simulated gear box 11 can be changed in real time. At the same time, intermittent oil injection or change of the oil injection pressure and oil injection amount can be performed through the external oil pump, thereby providing more comprehensive test data for testers to perform oil injection lubrication detection.

[0048] In addition, during the oil injection test, the servo motor 117 can also be started to drive the adjusting gear 118 to rotate. The rotation of the adjusting gear 118 can drive the servo motor 117 and the sliding sleeve 116 to make circular motion along the trajectory of the arc plate 114, thereby driving the oil injection pipe 120 to move synchronously, so as to adjust the oil injection angle of the oil injection pipe 120. In this way, by changing the oil injection angle of the oil injection pipe 120, the angle of the lubricating oil sprayed by the oil injection pipe 120 to the inside of the simulated gear box 11 can be adjusted in real time, so that the test personnel can quickly adjust the oil injection position and oil injection of the oil injection pipe 120. Angle, and the setting of the opening above the simulated gearbox 11 allows the tester to directly observe the injection trajectory of the lubricating oil and the distribution of the lubricating oil on the gear, which can help the tester to quickly and preliminarily determine the injection position and injection angle. After preliminarily determining the position of the injection pipe 120, the injection position and angle of the injection pipe 120 are gradually adjusted, so that the tester can test the lubrication performance of the simulated gearbox 11 under lubrication conditions with different injection angles. This device can help determine the approximate injection position and injection angle range, and can quickly screen out some feasible parameter combinations, providing direction for subsequent more accurate tests.

[0049] like Figures 5 to 9As shown, a protective mechanism is provided on the side of the sliding sleeve 116 close to the injection pipe 120, and the protective mechanism includes a fixed frame plate 21 fixedly connected to the sliding sleeve 116 on the side close to the pipe clamp 119, an electric telescopic rod 22 is fixedly connected to the middle of the side of the fixed frame plate 21 away from the sliding sleeve 116, and a tooth plate 26 is fixedly connected to the telescopic shaft below the electric telescopic rod 22, and a rectangular frame 23 is fixedly connected to the bottom of the sliding sleeve 116, and the rectangular frame 23 is rotatably connected to two shaft bodies 24 on the side close to the injection pipe 120, and the two shaft bodies 24 are symmetrically arranged, and a semi-ring sleeve 25 is fixedly connected to the middle of each shaft body 24, and there are two semi-ring sleeves 25 in total, and the two semi-ring sleeves 25 are a complete cylinder when closed, and each shaft body 24 is fixedly connected to a coupling gear 27 at one end close to the tooth plate 26, and teeth are arranged on both sides of the tooth plate 26. Specifically, after the tooth plate 26 moves downward for a distance, it can mesh with the two coupling gears 27. An oil box 215 is provided below the semi-ring sleeve 25. The top surface of the oil box 215 is in contact with the bottom surface of the semi-ring sleeve 25. The oil box 215 is made of a transparent material, specifically acrylic. The transparent oil box 215 makes it easy for testers to observe the amount of lubricating oil collected inside.

[0050] The tooth plate 26 is symmetrically fixedly connected to one side of the fuel injection pipe 120 with two pressure rods 28, a sealing cover 29 is fixedly connected to the bottom of the rectangular frame 23, and the sealing cover 29 is symmetrically fixedly connected to two L-shaped plates 210, and the end of the L-shaped plate 210 away from the sealing cover 29 is fixedly connected to a slot frame 211, and a retreat block 212 is slidably connected to the slot frame 211, and the part where the retreat block 212 is slidably connected to the slot frame 211 is dovetail-shaped, and the retreat block 212 is slidably connected to the slot frame 211 through the dovetail-shaped part. 11, to ensure that the retreat block 212 will not separate from the tank frame 211 up and down, the top surface of the retreat block 212 is an inclined surface, and the end of the pressure rod 28 away from the tooth plate 26 is against the inclined surface of the adjacent retreat block 212, the retreat block 212 is fixedly connected with a cross bar 214 on the side close to the oil box 215, a disassembly component is arranged between the cross bar 214 and the oil box 215, and a horizontal spring 213 is arranged between the retreat block 212 and the adjacent tank frame 211, and the horizontal spring 213 is in a compressed state.

[0051] like Figure 8 , Fig. 9As shown, the disassembly assembly includes two fixed blocks 31 symmetrically fixedly connected to the outer wall of the oil box 215, the fixed block 31 is provided with a socket 32, the end of the cross bar 214 close to the fixed block 31 is fixedly connected to a fixed cylinder 33, the end of the fixed cylinder 33 away from the cross bar 214 is movably plugged with a plug rod 34, a limiting groove is provided on the inner ring surface of the fixed cylinder 33, the plug rod 34 is provided with a rectangular block slidably matched with the limiting groove, the end of the plug rod 34 away from the fixed cylinder 33 is plugged and matched with the adjacent socket 32, the plug-in portion of the plug rod 34 and the adjacent socket 32 ​​is rectangular to prevent the plug rod 34 from rotating after being plugged into the socket 32, a built-in spring is provided between the plug rod 34 and the adjacent fixed cylinder 33, the sealing cover 29 is located on the horizontal movement path of the oil box 215, and the top of the oil box 215 is covered and sealed by the sealing cover 29.

[0052] When in use: before the oil injection pipe 120 sprays out the lubricating oil, the electric telescopic rod 22 can be started, so that the telescopic shaft of the electric telescopic rod 22 drives the tooth plate 26 to move vertically downward. When the tooth plate 26 moves downward, it drives the two pressure rods 28 to move downward synchronously. When the tooth plate 26 starts to move downward, it is not engaged with the coupling gear 27. At this time, the pressure rod 28 squeezes the inclined surface of the retreat block 212, so that the retreat block 212 moves horizontally along the trajectory of the slot frame 211, and further compresses the horizontal spring 213, thereby moving the oil box 215 away from the bottom of the semi-ring sleeve 25. After the oil box 215 is moved away from the bottom of the semi-ring sleeve 25, the tooth plate 26 engages with the two coupling gears 27. At this time, when the tooth plate 26 continues to move downward, it will also drive the two coupling gears The gear 27 rotates, thereby driving the shaft 24 and the half-ring 25 to rotate, so that the lower ends of the two half-rings 25 rotate upward. When the tooth plate 26 moves to the bottom, the two half-rings 25 flip upward ninety degrees away from each other, and at the same time, the oil box 215 moves horizontally to the bottom of the sealing cover 29. Then, the tester can start the external oil pump to spray the lubricating oil from the oil injection pipe 120 into the simulated gearbox 11 and start the oil injection lubrication test. The sealing cover 29 is used to block and seal the top of the oil box 215 to prevent the lubricating oil collected in the oil box 215 from leaking out when the angle of the oil injection pipe 120 is adjusted. At the same time, the lubricating oil sealed in the oil box 215 is also convenient for the tester to reuse it later. When the oil injection test is completed, the external oil pump is controlled to stop delivering oil, and the telescopic axis of the electric telescopic rod 22 is controlled to move upward and reset, so that the two semi-ring sleeves 25 are driven to flip downward and reset through the toothed plate 26 and the two connecting gears 27 to cover the lower outside of the oil injection pipe 120. When the toothed plate 26 moves upward, the horizontal spring 213 resets and drives the retreat block 212 and the oil box 215 to move and reset. When the toothed plate 26 moves upward to the initial position, the oil box 215 is again located directly below the two semi-ring sleeves 25, and cooperates with the two semi-ring sleeves 25 to cover and protect the lower outside of the oil injection pipe 120 again.

[0053] When the tester observes that the lubricating oil collected inside the oil box 215 is almost full, he can manually push the insertion rods 34 located on both sides of the oil box 215 to separate the insertion rods 34 from the insertion holes 32, and at the same time compress the built-in spring inside the fixing cylinder 33, so that the oil box 215 can be removed from the cross bar 214, and the lubricating oil inside the oil box 215 can be poured out for subsequent reuse. After pouring the oil, the oil box 215 can be manually connected to the cross bar 214 for subsequent use, thereby improving the convenience of using the oil box 215.

[0054] Therefore, when the oil injection pipe 120 needs to be subjected to an oil injection lubrication test experiment, the two half-rings 25 can be automatically flipped open, which will not affect the normal oil injection of the oil injection pipe 120. After the oil injection test is completed, that is, when the oil injection pipe 120 is not in use, the oil container 215 is used to catch the remaining lubricating oil attached to the bottom of the oil injection pipe 120. At the same time, the two half-rings 25 and the oil container 215 can be used to form a closed shield outside the lower part of the oil injection pipe 120, reduce the air and impurities in the external environment from adhering to the oil injection pipe 120, reduce the blockage of the part of the oil injection pipe 120 that sprays lubricating oil, and improve the stability of the oil injection pipe 120 in subsequent testing operations.

[0055] like Figure 5 , Fig.10 , Fig.11As shown, a fixed axis plate 41 is fixedly connected to the outer ring surface of the semi-annular sleeve 25, and a rotating rod 42 is rotatably connected to the end of the fixed axis plate 41 away from the semi-annular sleeve 25. A clockwork spring 44 is connected to the position where the rotating rod 42 and the fixed axis plate 41 are rotatably connected. One end of the clockwork spring 44 is fixedly connected to the fixed axis plate 41, and the other end of the clockwork spring 44 is fixedly connected to the rotating rod 42. A knocking rod 47 is movably inserted into the semi-annular sleeve 25, and the end of the knocking rod 47 close to the injection pipe 120 is made of rubber. The end of the knocking rod 47 away from the semi-annular sleeve 25 is fixedly connected to a T-shaped plate 48, and a reset spring 49 is connected between the T-shaped plate 48 and the outer wall of the adjacent semi-annular sleeve 25. The end of the rotating rod 42 close to the adjacent T-shaped plate 48 is fixedly connected to a cam 45, and the upper middle part of the T-shaped plate 48 is located on the path of the rotational movement of the cam 45. The end of the rotating rod 42 away from the T-shaped plate 48 is fixedly connected to the ratchet 43, and the rectangular frame 23 is symmetrically fixedly connected to two arc-shaped oblique racks 46. The positions of the two arc-shaped oblique racks 46 are respectively set corresponding to the positions of the two ratchets 43. The arc-shaped oblique racks 46 are located on the path of the circular motion of the ratchet 43. Specifically, when the semi-annular sleeve 25 is turned upward, it drives the ratchet 43 to move synchronously, and makes the ratchet 43 contact with the arc-shaped oblique racks 46, and the arc-shaped oblique racks 46 are evenly provided with inclined teeth, and the ratchet 43 is provided with teeth that can be engaged with the teeth on the arc-shaped oblique racks 46. The arc-shaped teeth are hooked with each other, and the inclined teeth on the arc-shaped oblique rack 46 are made of deformable plastic material. When the ratchet 43 follows the semi-ring sleeve 25 to move upward until it contacts the teeth of the arc-shaped oblique rack 46, the ratchet 43 will squeeze the inclined teeth to deform the teeth. At this time, the teeth will not hook the arc-shaped teeth on the ratchet 43, so that the ratchet 43 will not rotate. When the ratchet 43 follows the semi-ring sleeve 25 to move downward to reset, the arc-shaped teeth on the ratchet 43 will hook the teeth on the arc-shaped oblique rack 46, thereby driving the ratchet 43 to rotate, and at the same time causing the clockwork spring 44 to deform.

[0056] When in use: in order to accelerate the lubricating oil attached to the lower end of the oil injection pipe 120 to drip downward, when the semi-annular sleeve 25 is turned upward and downward, it will also drive the fixed axis plate 41, the rotating rod 42, the ratchet 43, the spring spring 44, the cam 45, the knocking rod 47, the T-shaped plate 48, and the reset spring 49 to move synchronously. When the ratchet 43 follows the semi-annular sleeve 25 to move upward, it will not cause it to rotate. When the ratchet 43 follows the semi-annular sleeve 25 to move downward, it will cause the rotating rod 42, the ratchet 43, and the cam 45 to rotate synchronously, and cause the spring spring 44 to undergo elastic deformation to store force. When the two semi-annular sleeves 25 move downward to block the lower outside of the oil injection pipe 120 again, the ratchet 43 separates from the inclined teeth on the arc-shaped oblique rack 46, so that under the elastic restoring force of the spring spring 44, the cam 45 is driven to rotate in the opposite direction. After the cam 45 rotates, it will intermittently interfere with the upper middle part of the T-shaped plate 48, and the cam 45 will be pressed against the upper middle part of the T-shaped plate 48. When the wheel 45 hits the upper middle part of the T-shaped plate 48, it will push the T-shaped plate 48 and the knocking rod 47 to move towards the direction close to the injection pipe 120, and at the same time compress the return spring 49, thereby knocking the lower end of the injection pipe 120. When the cam 45 rotates to pass over the upper middle part of the T-shaped plate 48, the T-shaped plate 48 and the knocking rod 47 are automatically reset under the action of the rebound force of the return spring 49. During the period of elastic recovery of the clockwork spring 44, the lower end of the injection pipe 120 can be knocked back and forth, thereby accelerating the falling of the lubricating oil attached to the lower end of the injection pipe 120, and improving the efficiency of the oil box 215 in collecting excess lubricating oil.

[0057] This embodiment also provides an adjustable oil injection test method for a gearbox oil injection lubrication system, using the above-mentioned adjustable oil injection test device for the gearbox oil injection lubrication system, the method comprises the following steps:

[0058] Step 1: Install the simulated gearbox 11 on the upper surface of the test bench 1;

[0059] Step 2: Start the electric telescopic rod 22, drive the tooth plate 26 and the pressure rod 28 to move downward, the pressure rod 28 presses the inclined surface of the retreat block 212 downward, and then drives the oil box 215 to move away from under the semi-ring sleeve 25, the tooth plate 26 continues to move downward until it meshes with the coupling gear 27, and the two coupling gears 27 are driven to rotate by the downward movement of the tooth plate 26, and then the two shaft bodies 24 and the two semi-ring sleeves 25 are driven to rotate, and the tooth plate 26 continues to move downward until the oil box 215 moves horizontally to below the sealing cover 29;

[0060] Step 3: The X-axis motor 16 drives the X-axis lead screw 17 to rotate, thereby driving the frame 13 to move in the X-axis direction, and the Y-axis motor 19 drives the Y-axis lead screw 110 to rotate, thereby driving the frame 2 14 and the mounting plate 152 to move in the Y-axis direction, so as to adjust the oil injection position of the oil injection pipe 120 in the X-axis direction and the Y-axis direction, and then the servo motor 117 drives the adjustment gear 118 to rotate, thereby driving the sliding sleeve 116 to make an arc motion along the trajectory of the arc plate 114, so as to adjust the oil injection angle of the oil injection pipe 120, and then the oil injection lubrication experiment is performed on the simulated gear box 11 through the oil injection pipe 120, and the external test equipment is used for detection;

[0061] Step 4: After the experiment is completed, the injection angle of the fuel injection pipe 120 is adjusted by the servo motor 117 to place the fuel injection pipe 120 vertically, and then the electric telescopic rod 22 is used to drive the tooth plate 26 and the pressure rod 28 to move upward, thereby driving the two semi-ring sleeves 25 to rotate, and when the tooth plate 26 moves upward, the horizontal spring 213 resets and drives the oil box 215 to move and reset. When the tooth plate 26 moves upward to the initial position, the two semi-ring sleeves 25 are close together, and the oil box 215 is again located below the two semi-ring sleeves 25, thereby shielding and protecting the fuel injection pipe 120.

[0062] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An adjustable oil injection test device for a gearbox oil injection lubrication system, comprising a test bench (1), a simulated gearbox (11) being placed on the upper surface of the test bench (1), characterized in that: The test bench (1) is provided with an adjustment mechanism, which comprises a main frame (12) fixedly connected to the test bench (1), a frame body (13) being slidably connected to the top of the main frame (12), two limit rods (112) being fixedly connected to the top of the frame body (13), two connecting sleeves (113) being slidably connected to each limit rod (112), the tops of the four connecting sleeves (113) being commonly fixedly connected to a frame body (14), a top plate (15) being fixedly connected to the top of the frame body (14), an electric cylinder (151) being fixedly installed at the bottom of the top plate (15), an X-axis motor (16) being fixedly installed to the main frame (12), and an X-axis motor (16) being fixedly installed to the top of the frame body (13). An X-axis lead screw (17) is fixedly connected to the output shaft of the motor (16), and the X-axis lead screw (17) is rotatably connected to the main frame (12); an X-axis drive block (18) is fixedly connected to the bottom of the frame body (13), and the X-axis drive block (18) is threadedly connected to the X-axis lead screw (17); a Y-axis motor (19) is fixedly installed on the frame body (13); a Y-axis lead screw (110) is fixedly connected to the output shaft of the Y-axis motor (19), and the Y-axis lead screw (110) is rotatably connected to the frame body (13); a Y-axis drive block (111) is fixedly connected to the bottom of the frame body (14), and the Y-axis drive block (111) is threadedly connected to the Y-axis lead screw (110); A mounting plate (152) is fixedly connected to the telescopic shaft below the electric cylinder (151); an arc-shaped plate (114) is fixedly connected to the bottom of the mounting plate (152); an arc-shaped rack (115) is fixedly connected to the bottom edge of one side of the arc-shaped plate (114); a sliding sleeve (116) is slidably connected to the arc-shaped plate (114); a side of the sliding sleeve (116) close to the arc-shaped rack (115) is fixedly connected to a servo motor (117); an adjusting gear (118) is fixedly connected to the output shaft of the servo motor (117); the adjusting gear (118) and the arc-shaped rack (115) are meshed with each other; a pipe clamp (119) is fixedly connected to the side of the sliding sleeve (116) away from the arc-shaped rack (115); and an oil injection pipe (120) is fixedly connected to the pipe clamp (119); The sliding sleeve (116) is provided with a protection mechanism, comprising a fixed frame plate (21) fixedly connected to the sliding sleeve (116), the fixed frame plate (21) being fixedly connected to an electric telescopic rod (22), a tooth plate (26) being fixedly connected to the telescopic shaft of the electric telescopic rod (22), a rectangular frame (23) being fixedly connected to the bottom of the sliding sleeve (116), a side of the rectangular frame (23) close to the fuel injection pipe (120) being rotatably connected to two shaft bodies (24), a half ring sleeve (25) being fixedly connected to the middle of each shaft body (24), and a coupling gear (27) being fixedly connected to one end of each shaft body (24) close to the tooth plate (26).

2. The adjustable oil injection test device of the gearbox oil injection lubrication system according to claim 1 is characterized in that: An oil container (215) is provided below the semi-ring sleeve (25); two pressure rods (28) are symmetrically fixedly connected to one side of the tooth plate (26) close to the oil injection pipe (120); a sealing cover (29) is fixedly connected to the bottom of the rectangular frame (23); the sealing cover (29) is symmetrically fixedly connected to two L-shaped plates (210); one end of the L-shaped plate (210) away from the sealing cover (29) is fixedly connected to a tank frame (211); a retracting member is slidably connected to the tank frame (211). The backing block (212) has an inclined top surface, and one end of the pressure rod (28) away from the tooth plate (26) abuts against the inclined surface of the adjacent backing block (212). A side of the backing block (212) close to the oil box (215) is fixedly connected to a cross bar (214). A disassembly assembly is provided between the cross bar (214) and the oil box (215). A horizontal spring (213) is provided between the backing block (212) and the adjacent tank frame (211).

3. The adjustable oil injection test device of the gearbox oil injection lubrication system according to claim 2 is characterized in that: The portion where the retreat block (212) is slidably connected to the tank frame (211) is dovetail-shaped.

4. The adjustable oil injection test device of the gearbox oil injection lubrication system according to claim 2 is characterized in that: The oil container (215) is made of transparent material.

5. The adjustable oil injection test device of the gearbox oil injection lubrication system according to claim 2 is characterized in that: The disassembly assembly comprises two fixed blocks (31) symmetrically fixedly connected to the outer wall of the oil container (215), the fixed blocks (31) are provided with insertion holes (32), one end of the cross bar (214) close to the fixed block (31) is fixedly connected to a fixed cylinder (33), one end of the fixed cylinder (33) away from the cross bar (214) is movably plugged with an insertion rod (34), one end of the insertion rod (34) away from the fixed cylinder (33) is plugged with an adjacent insertion hole (32), the plugging portion of the insertion rod (34) and the adjacent insertion hole (32) is rectangular, and a built-in spring is provided between the insertion rod (34) and the adjacent fixed cylinder (33).

6. The adjustable oil injection test device of the gearbox oil injection lubrication system according to claim 5 is characterized in that: A fixed axis plate (41) is fixedly connected to the outer ring surface of the semi-annular sleeve (25); an end of the fixed axis plate (41) away from the semi-annular sleeve (25) is rotatably connected to a rotating rod (42); a spring spring (44) is connected between the rotating rod (42) and the fixed axis plate (41); a knocking rod (47) is movably inserted into the semi-annular sleeve (25); an end of the knocking rod (47) away from the semi-annular sleeve (25) is fixedly connected to a T-shaped plate (48); a return spring (49) is connected between the T-shaped plate (48) and the adjacent semi-annular sleeve (25); One end of the rotating rod (42) close to the adjacent T-shaped plate (48) is fixedly connected to a cam (45), and the positions of the T-shaped plate (48) and the cam (45) are arranged correspondingly. One end of the rotating rod (42) away from the T-shaped plate (48) is fixedly connected to a ratchet (43), and the rectangular frame (23) is symmetrically fixedly connected to two arc-shaped oblique racks (46), and the positions of the two arc-shaped oblique racks (46) are arranged correspondingly to the positions of the two ratchet wheels (43), and the arc-shaped oblique racks (46) are evenly arranged with inclined teeth.

7. The adjustable oil injection test device of the gearbox oil injection lubrication system according to claim 6 is characterized in that: One end of the knock rod (47) close to the fuel injection pipe (120) is made of rubber.

8. An adjustable oil injection test method for a gearbox oil injection lubrication system, characterized in that: Using the adjustable oil injection experimental device for the gearbox oil injection lubrication system as claimed in claim 7, the method comprises the following steps: Step 1: Install the simulated gearbox (11) on the upper surface of the test bench (1); Step 2: Start the electric telescopic rod (22), drive the tooth plate (26) and the pressure rod (28) to move downward, the pressure rod (28) presses the inclined surface of the retreat block (212) downward, and then drives the oil box (215) to move away from the bottom of the semi-ring sleeve (25), the tooth plate (26) continues to move downward until it meshes with the coupling gear (27), and the two coupling gears (27) are driven to rotate by the downward movement of the tooth plate (26), and then the two shaft bodies (24) and the two semi-ring sleeves (25) are driven to rotate, and the tooth plate (26) continues to move downward until the oil box (215) moves horizontally to the bottom of the sealing cover (29); Step 3: The X-axis motor (16) is used to drive the X-axis lead screw (17) to rotate, thereby driving the frame body 1 (13) to move in the X-axis direction, and the Y-axis motor (19) is used to drive the Y-axis lead screw (110) to rotate, thereby driving the frame body 2 (14) and the mounting plate (152) to move in the Y-axis direction, thereby adjusting the oil injection position of the oil injection pipe (120) in the X-axis direction and the Y-axis direction, and then the servo motor (117) is used to drive the adjustment gear (118) to rotate, thereby driving the sliding sleeve (116) to perform an arc motion along the trajectory of the arc plate (114), thereby adjusting the oil injection angle of the oil injection pipe (120), and then performing an oil injection lubrication experiment on the simulated gear box (11) through the oil injection pipe (120), and using external testing equipment for detection; Step 4: After the experiment is completed, the servo motor (117) is used to adjust the injection angle of the fuel injection pipe (120) so that the fuel injection pipe (120) is placed vertically, and then the electric telescopic rod (22) is used to drive the tooth plate (26) and the pressure rod (28) to move upward, thereby driving the two semi-ring sleeves (25) to rotate, and when the tooth plate (26) moves upward, the horizontal spring (213) is reset to drive the oil container (215) to move and reset, and when the tooth plate (26) moves upward to the initial position, the two semi-ring sleeves (25) are close together, and the oil container (215) is again located below the two semi-ring sleeves (25), thereby shielding and protecting the fuel injection pipe (120).

Images