Auxiliary testing device for hydraulic lifting system of tractor

Abstract

The invention relates to the technical field of auxiliary testing devices, in particular to an auxiliary testing device for a hydraulic lifting system of a tractor, which comprises a testing main table and a testing assembly, the testing assembly comprises side moving sliding frames, guiding connection supports, a lifting box, a splicing box, a sensing component, a height adjusting component and a width adjusting component, the two side moving sliding frames are slidably installed on the two sides of the testing main table respectively, the two guiding connection supports are correspondingly connected with the two side moving sliding frames through the height adjusting component, the lifting box is slidably arranged on one guiding connection support, and the splicing box is arranged on the other guiding connection support. The splicing box is in sliding connection with the lifting box, the sensing component is connected with the guiding connection support, the height adjusting component is connected with the side moving sliding frame, and the width adjusting component is connected with the testing main table. Therefore, different hydraulic lifting systems carried by equipment of different types and sizes can be flexibly and conveniently detected.

Description

Technical Field

[0001] The present invention relates to the technical field of auxiliary testing devices, and in particular to an auxiliary testing device for a hydraulic lifting system of a tractor. Background Art

[0002] The tractor hydraulic lift system is the core device that enables the tractor to achieve efficient and precise operation of agricultural implements. Its function runs through multiple links, including the lifting and lowering control of agricultural implements, ensuring tillage quality, and improving operational safety and comfort. During actual operation, through the telescopic movement of the hydraulic cylinder, agricultural implements such as plows, harrows, seeders, and harvesters can be quickly raised or lowered to meet the needs of different scenarios such as tillage, transportation, and field turns.

[0003] The performance of the tractor hydraulic lifting system directly affects its actual working stability. Therefore, the auxiliary test of the tractor hydraulic lifting system plays a key role in ensuring the safety of agricultural machinery operation, improving operation efficiency, extending equipment life and promoting the development of agricultural mechanization. Most existing auxiliary testing devices use auxiliary testing tools (such as laser rangefinders and angle sensors) to calibrate the lifting height and tillage depth control accuracy of the hydraulic system, ensuring consistent operating depth of agricultural implements and improving sowing uniformity or soil turning effects. At the same time, they can also check the sealing of hydraulic pipelines, joints and cylinders through pressure retention tests (such as maintaining pressure for more than 30 minutes) to prevent oil leakage from causing hydraulic oil shortages or contaminating farmland.

[0004] Existing auxiliary test devices usually install the corresponding load in the implement mounting area of ​​the tractor and then conduct subsequent tests. However, when installing the existing load, the weight and size of the installed load cannot be quickly and flexibly adjusted according to the models of different tractors and the size and weight of the actual mounted implements. As a result, the hydraulic lifting systems in different equipment cannot be effectively tested, resulting in poor flexibility in the actual testing process. It is difficult to adjust and adapt according to equipment of different types and sizes and the corresponding hydraulic lifting systems, resulting in a single detection category during actual use. Summary of the Invention

[0005] The purpose of the present invention is to provide an auxiliary testing device for the hydraulic lifting system of a tractor, which can adjust the specific load scheme according to the actual equipment model and the corresponding agricultural implement size through the provided components, so as to facilitate flexible and convenient testing of different hydraulic lifting systems installed on equipment of different types and sizes.

[0006] To achieve the above-mentioned object, the present invention provides an auxiliary test device for a hydraulic lifting system of a tractor, comprising a main test platform and a test assembly; The test assembly includes a side-shift slide, a guide bracket, a lifting box, a connection box, a sensing component, a height adjustment component and a width adjustment component. The two side-shift slides are respectively slidably installed on both sides of the test main platform. The two guide brackets are correspondingly connected to the two side-shift slides through the height adjustment component. The lifting box is slidably set on one of the guide brackets. The connection box is slidably connected to the lifting box and slidably installed on the other guide bracket. The sensing component is connected to the guide bracket for measuring the weight of the mechanism composed of the lifting box and the connection box. The height adjustment component is connected to the side-shift slide for adjusting the guide height of the two guide brackets. The width adjustment component is connected to the test main platform for adjusting the matching position of the two side-shift slides.

[0007] Among them, the sensing component includes a pressure sensor, an infrared rangefinder and a distance sensing template. The two pressure sensors are respectively installed on the two conducting brackets, and the pressure sensing modules of the pressure sensors are respectively abutted against the lifting box and the connection box arranged on the two conducting brackets; the infrared rangefinder is installed on the top of the conducting bracket where the connection box is provided; the distance sensing template is installed on the side of the connection box and works in conjunction with the infrared rangefinder arranged on the top of the conducting bracket.

[0008] Among them, the height adjustment component includes a lifting bracket, a lifting screw, a conversion component and a synchronous drive component. The lifting bracket is slidably installed on each of the side-moving slides, and two guide brackets are fixed on the top of the two lifting brackets respectively; each of the lifting brackets is provided with a lifting screw for driving, and the lifting screw is threadedly connected to the corresponding lifting bracket and rotatably installed on the corresponding side-moving slide; the conversion component is connected to the lifting screw, and the synchronous drive component is connected to the test main platform, and the lifting screws on both sides are synchronously driven by the cooperation of the conversion component and the synchronous drive component.

[0009] In which, the width adjustment component includes an adjusting screw, a linkage gear, a rotating gear shaft and a rotating motor. The two adjusting screws are respectively threadedly connected to the two side-shift slides, and the two adjusting screws are rotatably mounted on the test main platform; the two linkage gears are respectively fixedly mounted on the same side of the two adjusting screws; the rotating gear shaft is rotatably mounted on the test main platform, and the gear arranged at the end of the rotating gear shaft is engaged with the two linkage gears; the output shaft of the rotating motor is connected to the rotating gear shaft, and the rotating motor is fixedly mounted on the test main platform.

[0010] Among them, the conversion component includes a connecting bevel gear, a double-headed bevel gear shaft, a reversing shaft and a connecting bevel gear, and the connecting bevel gear is fixedly installed at the bottom of each lifting screw rod; the two double-headed bevel gear shafts are respectively rotatably installed on the two side-shift slides, and corresponding bevel gears are provided at both ends of the double-headed bevel gear shaft, and one of the bevel gears of the double-headed bevel gear shaft is meshed with the connecting bevel gear on the same side-shift slide; the two reversing shafts are respectively rotatably installed on the two side-shift slides; the connecting bevel gear is fixed at both ends of the reversing shaft, and the connecting bevel gear provided at the lower end of the reversing shaft is meshed with another bevel gear of the double-headed bevel gear shaft provided on the same side-shift slide.

[0011] wherein, the synchronous driving component includes a slide shaft, a sleeve shaft and a driving bevel gear, the slide shaft and the sleeve shaft are respectively rotatably mounted on the two side shift slides, the slide shaft and the sleeve shaft are slidingly connected; the two driving bevel gears are respectively fixedly mounted on both sides of the slide shaft and the sleeve shaft, the driving bevel gear arranged on the side of the slide shaft is meshed with the connecting bevel gear arranged on the upper end of the reversing shaft on the same side shift slide, and the driving bevel gear arranged on the side of the sleeve shaft is meshed with the connecting bevel gear arranged on the upper end of the reversing shaft on the same side shift slide.

[0012] In which, the synchronous drive component also includes an external sleeve, a driving sleeve, a sleeve gear, a driving gear and a driving motor, the external sleeve is fixedly sleeved on the sleeve shaft; the driving sleeve is slidingly connected to the external sleeve and is rotatably installed on the test main platform; the sleeve gear is fixedly sleeved on the driving sleeve; the driving gear is meshed with the sleeve gear and is rotatably installed on the test main platform; the output shaft of the driving motor is connected to the driving gear, and the driving motor is fixedly installed on the test main platform.

[0013] In which, the test assembly also includes a lifting sleeve, a connecting sleeve, a sliding frame, an unfolding member and a guiding member. The lifting sleeve is slidably installed on the lifting box; the connecting sleeve is slidably installed on the connecting box; the sliding frame is slidably connected to the lifting sleeve and is fixedly installed on the connecting sleeve; the unfolding member is connected to the lifting box for adjusting the lifting height of the lifting sleeve; the guiding member is connected to the connecting sleeve for guiding the corresponding medium into the corresponding box structure.

[0014] In which, the unfolding component includes a guide bracket, a movable plate, a lifting rod, a double-headed threaded rod, a synchronous rotation mechanism and a regulating motor, and the two guide brackets are respectively fixedly mounted on both sides of the lifting box; the two movable plates are slidably mounted on each guide bracket; the movable plate is connected to the lifting sleeve through the lifting rod, and the two sides of the lifting rod are respectively rotatably connected to the lifting sleeve and the corresponding movable plate; the two double-headed threaded rods are respectively rotatably mounted on the two guide brackets, and the two sides of the double-headed threaded rod provided on the guide bracket are respectively threadedly connected to the two movable plates slidably mounted on the same guide bracket; the two double-headed threaded rods are connected through the synchronous rotation mechanism; the output shaft of the regulating motor is connected to one of the double-headed threaded rods, and the regulating motor is fixedly mounted on one side of the guide bracket.

[0015] Wherein, the guiding component includes an introduction joint, a guide pipe and a drop joint, the introduction joint is fixedly installed on one side of the connection sleeve; the guide pipe is connected to the introduction joint and is arranged in the connection sleeve; the drop joint is fixedly arranged on the guide pipe.

[0016] The hydraulic lifting system auxiliary testing device of the tractor of the present invention can, during actual operation, adjust the matching positions of the two side-shift slides installed on the test main platform in advance through the width adjustment component and the height adjustment component according to the agricultural implement loading structure of the tractor to be tested. As the positions of the two side-shift slides are adjusted, the two guide brackets will also slide along with the two side-shift slides, thereby driving the connecting box and the lifting box to slide relative to each other, so that the loading box structure composed of the connecting box and the lifting box can be matched with the agricultural implement loading structure of the corresponding tractor. After that, the tractor to be tested can drive the agricultural implement loading structure to lift the loading box structure composed of the lifting box and the connecting box through the set hydraulic lifting system, so as to facilitate the lifting of the lifting box and the connecting box. The weight of the connecting box simulates the weight of the agricultural implements to be loaded, and the lifting box and the connecting box can be lifted stably by the guidance of the corresponding guide bracket when lifting, and then the lifting data is analyzed and detected by the sensing component arranged on the street bracket, and finally the auxiliary test of the corresponding hydraulic lifting system is completed. When the lifting box and the connecting box simulate the actual loading of agricultural implements, the user can also adjust the internal weight of the loading box by adding water to the loading box composed of the lifting box and the connecting box, so as to better assist in testing the hydraulic lifting system, and realize the ability to adjust the specific load plan according to the actual equipment model category and the corresponding agricultural implement size through the provided components, so as to facilitate flexible and convenient testing of different hydraulic lifting systems carried by equipment of different types and sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art.

[0018] Figure 1 It is a schematic diagram of the overall structure of the auxiliary testing device for the hydraulic lifting system of a tractor of the present invention.

[0019] Figure 2 The present invention Figure 1 Enlarged view of point A.

[0020] Figure 3 It is a structural schematic diagram of the synchronous rotation mechanism of the present invention.

[0021] Figure 4 It is a schematic diagram of the installation structure of the connecting bevel gear of the present invention.

[0022] Figure 5 It is a schematic structural diagram of a cutaway connection box of the present invention.

[0023] Figure 6 It is a schematic structural diagram of the cross-section of the lifting box and the connection box of the present invention.

[0024] Figure 7 It is a schematic structural diagram of the cross-section of the lifting casing and the connecting casing of the present invention.

[0025] Figure 8 It is a schematic structural diagram of the top of the test main platform of the present invention.

[0026] In the figure: 101-test main platform, 102-side sliding carriage, 103-guide bracket, 104-lifting box, 105-connection box, 201-pressure sensor, 202-infrared rangefinder, 203-distance sensing template, 301-lifting bracket, 302-lifting screw, 303-connecting bevel gear, 304-double-headed bevel gear shaft, 305-reversing shaft, 306-connecting bevel gear, 401-adjusting screw, 402-linking gear, 403-rotating gear shaft, 404-rotating motor, 501- Slide shaft, 502-sleeve shaft, 503-driving bevel gear, 504-external sleeve, 505-driving sleeve, 506-sleeve gear, 507-driving gear, 508-driving motor, 601-lifting sleeve, 602-connecting sleeve, 603-sliding frame, 604-guide bracket, 605-moving plate, 606-lifting rod, 607-double-headed threaded rod, 608-synchronous rotation mechanism, 609-regulating motor, 701-introduction joint, 702-guide pipe, 703-falling joint. DETAILED DESCRIPTION

[0027] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0028] In the description of the present invention, it should be understood that “plurality” means two or more than two, unless otherwise clearly defined.

[0029] See also Figure 1 The present invention provides an auxiliary test device for a hydraulic lifting system of a tractor: comprising a test main platform 101 and a test assembly, wherein the test assembly comprises a side shift slide 102, a guide bracket 103, a lifting box 104, a connecting box 105, a sensing component, a height adjustment component and a width adjustment component, wherein the sensing component comprises a pressure sensor 201, an infrared rangefinder 202 and a distance sensing template 203, the height adjustment component comprises a lifting bracket 301, a lifting screw 302, a switching component and a synchronous drive component, the width adjustment component comprises an adjusting screw 401, a linkage gear 402, a rotating gear shaft 403 and a rotating motor 404, the switching component comprises a connecting bevel gear 303, a double-headed bevel gear shaft 304, a reversing shaft 305 and a connecting bevel gear 306, and the synchronous drive component comprises a slide shaft 501, The sliding sleeve shaft 502 and the driving bevel gear 503, the synchronous drive component also includes an external sliding sleeve 504, a driving sleeve 505, a sleeve gear 506, a driving gear 507 and a driving motor 508. The above-mentioned solution solves the problem that the existing auxiliary test device usually installs the corresponding load in the agricultural implement mounting area of ​​the tractor and then conducts subsequent tests during testing. However, when the existing load is installed, the weight and size of the installed load cannot be quickly and flexibly adjusted according to the models of different tractors and the size and weight of the actual agricultural implements, and thus the hydraulic lifting systems in different equipment cannot be effectively tested, resulting in poor flexibility in the actual testing process. It is difficult to adjust and adapt according to equipment of different types and sizes and the corresponding hydraulic lifting systems, resulting in the problem of a single detection category during actual use.

[0030] Furthermore, the two side-shift slides 102 are respectively slidably installed on both sides of the test main platform 101, and the two guide brackets 103 are correspondingly connected to the two side-shift slides 102 through the height adjustment member. The lifting box 104 is slidably set on one of the guide brackets 103, and the connection box 105 is slidably connected to the lifting box 104 and slidably installed on the other guide bracket 103. The sensing member is connected to the guide bracket 103 for measuring the weight of the mechanism composed of the lifting box 104 and the connection box 105. The height adjustment member is connected to the side-shift slide 102 for adjusting the guide height of the two guide brackets 103. The width adjustment member is connected to the test main platform 101 for adjusting the matching position of the two side-shift slides 102.

[0031] Specifically, the side-shift slide 102 is connected to the test main platform 101 through a connecting support platform. The connecting support platforms of the two side-shift slides 102 are staggered with each other to facilitate the maximum range of movement and adjustment. Each side-shift slide 102 is provided with a corresponding roller at the bottom. The provided rollers can make the side-shift slide 102 easier and more convenient to move and adjust.

[0032] Each of the side-moving slides 102 is provided with a guiding bracket 103, and the guiding bracket 103 consists of two upper and lower limiting plates and a guide column in the middle. The limiting plate at the bottom of the guiding bracket 103 has a certain differentiated design depending on the different box structures to be matched. The lifting box 104 and the connecting box 105 are respectively slidingly provided on the two guiding brackets 103, and the sides of the connecting box 105 and the lifting box 104 are provided with corresponding guide groove plates for connecting and matching with the two guiding brackets 103.

[0033] The junction box 105 is divided into an outer sleeve template and an inner receiving module. The receiving module inside the junction box 105 is arranged inside the box body of the lifting box 104, and the outer sleeve module of the junction box 105 is sleeved outside the box body of the lifting box 104, so that the junction box 105 and the lifting box 104 can maintain the stability of the sliding of the two boxes by cooperating with the outer sleeve module when sliding against each other.

[0034] In actual operation, since the hydraulic lifting system of the tractor is used to lift the loaded agricultural implements, and the agricultural implement loading structure is the structure used by the tractor to install agricultural implements, the agricultural implement installation structure will also be different due to different tractor models, so the load size for testing and installation needs to be adjusted according to the agricultural implement installation structure, and then the user can adjust the matching position of the two side-shift slides 102 installed on the test main platform 101 through the width adjustment component and the height adjustment component in advance according to the agricultural implement loading structure of the tractor to be tested. As the position of the two side-shift slides 102 is adjusted, the two guide brackets 103 will also slide with the two side-shift slides 102, thereby driving the connecting box 105 and the lifting box 104 to slide relative to each other, so that the loading box structure composed of the connecting box 105 and the lifting box 104 can cooperate with the agricultural implement loading structure of the corresponding tractor, and then the tractor to be tested can drive the agricultural implement loading structure to lift the lifting box 104 through the set hydraulic lifting system. and the connecting box 105 is lifted, so that the weight of the agricultural implement to be loaded can be simulated by the weight of the lifting box 104 and the connecting box 105, and the lifting box 104 and the connecting box 105 can be stably lifted by the guidance of the corresponding guide bracket 103 when lifting, and then the lifting data is analyzed and detected by the sensing component arranged on the guide bracket 103, and finally the auxiliary test of the corresponding hydraulic lifting system is completed. When the lifting box 104 and the connecting box 105 simulate the actual loading of agricultural implements, the user can also adjust the weight inside the loading box by adding water to the loading box composed of the lifting box 104 and the connecting box 105, so as to better assist in testing the hydraulic lifting system, and realize that the specific load plan can be adjusted according to the actual equipment model category and the corresponding agricultural implement size through the provided components, so as to flexibly and conveniently test different hydraulic lifting systems equipped with equipment of different types and sizes.

[0035] See also Figure 5 Furthermore, the two pressure sensors 201 are respectively installed on the two conducting brackets 103, and the pressure sensing modules of the pressure sensors 201 are respectively abutted against the lifting box 104 and the junction box 105 set on the two conducting brackets 103; the infrared rangefinder 202 is installed on the top of the conducting bracket 103 where the junction box 105 is provided; the ranging sensing template 203 is installed on the side of the junction box 105, and works in conjunction with the infrared rangefinder 202 set on the top of the conducting bracket 103.

[0036] When this embodiment is in use, the surfaces of the bottom limit plates of the two guiding brackets 103 are provided with corresponding pressure sensors 201, and the pressure sensing modules of the pressure sensors 201 are respectively matched with the bottom of the plates connected to the lifting box 104 and the connecting box 105, so that the total weight of the loading box composed of the lifting box 104 and the connecting box 105 can be detected by the two pressure sensors 201.

[0037] The infrared rangefinder 202 is provided on the guide bracket 103 that cooperates with the junction box 105. At the same time, the distance sensing template 203 is provided on the surface of the guide hole plate of the junction box 105 and the guide rod of the guide bracket 103. The infrared rangefinder 202 emits infrared rays, and then the distance sensing template 203 reflects the infrared rays received by the sensor, thereby realizing the detection of the lifting distance of the junction box 105. At the same time, the infrared rangefinder 202 and the distance sensing template 203 are integrated with the infrared transmitting and receiving units, and then by detecting the time change of the distance sensing template 203 reflecting and receiving the infrared rays, combined with the known distance calculation speed, the lifting speed of the loading box can be detected, so as to facilitate a more comprehensive test and evaluation of the hydraulic lifting system.

[0038] See also Figure 2 、 Figure 4 and Figure 5 Furthermore, each of the side-shift slides 102 is slidably mounted with the lifting bracket 301, and two guide brackets 103 are respectively fixed on the top of the two lifting brackets 301; each of the lifting brackets 301 is provided with a lifting screw rod 302 for driving, and the lifting screw rod 302 is threadedly connected to the corresponding lifting bracket 301 and is rotatably mounted on the corresponding side-shift slide 102; the adapter component is connected to the lifting screw rod 302, and the synchronous drive component is connected to the test main platform 101, and the lifting screw rods 302 on both sides are synchronously driven through the cooperation of the adapter component and the synchronous drive component.

[0039] Furthermore, the connecting bevel gear 303 is fixedly installed at the bottom of each lifting screw rod 302; the two double-headed bevel gear shafts 304 are respectively rotatably installed on the two side-shift slides 102, and corresponding bevel gears are provided at both ends of the double-headed bevel gear shaft 304, and one of the bevel gears of the double-headed bevel gear shaft 304 is meshed with the connecting bevel gear 303 on the same side-shift slide 102; the two reversing shafts 305 are respectively rotatably installed on the two side-shift slides 102; the connecting bevel gear 306 is fixed at both ends of the reversing shaft 305, and the connecting bevel gear 306 provided at the lower end of the reversing shaft 305 is meshed with another bevel gear of the double-headed bevel gear shaft 304 provided on the same side-shift slide 102.

[0040] Furthermore, the slide shaft 501 and the sleeve shaft 502 are respectively rotatably installed on the two side-shift slides 102, and the slide shaft 501 is slidingly connected to the sleeve shaft 502; the two driving bevel gears 503 are respectively fixedly installed on both sides of the slide shaft 501 and the sleeve shaft 502, and the driving bevel gear 503 arranged on the side of the slide shaft 501 is engaged with the connecting bevel gear 306 arranged on the upper end of the reversing shaft 305 on the same side-shift slide 102, and the driving bevel gear 503 arranged on the side of the sleeve shaft 502 is engaged with the connecting bevel gear 306 arranged on the upper end of the reversing shaft 305 on the same side-shift slide 102.

[0041] Furthermore, the peripheral sleeve 504 is fixedly mounted on the sleeve shaft 502; the driving sleeve 505 is slidingly connected to the peripheral sleeve 504 and is rotatably mounted on the test main platform 101; the sleeve gear 506 is fixedly mounted on the driving sleeve 505; the driving gear 507 is engaged with the sleeve gear 506 and is rotatably mounted on the test main platform 101; the output shaft of the driving motor 508 is connected to the driving gear 507, and the driving motor 508 is fixedly mounted on the test main platform 101.

[0042] When this embodiment is in use, the limiting plates at the bottom of the two guide brackets 103 are respectively fixed to the top of the lifting bracket 301 set above the side shift slide 102, and each lifting bracket 301 is driven by the lifting screw 302 set. The bottom of the two lifting screws 302 are fixed with the connecting bevel gear 303, and the bevel gears set at both ends of the double-headed bevel gear shaft 304 are respectively connected with the connecting bevel gear 303 and the connecting bevel gear 306 set at the bottom of the reversing shaft 305. The connecting bevel gear 306 provided at the top is connected with the driving bevel gear 503. The two driving bevel gears 503 are respectively provided on the sides of the chute shaft 501 and the sleeve shaft 502. The sleeve shaft 502 is provided with a sliding guide groove adapted to the chute shaft 501, so that the sleeve shaft 502 and the chute shaft 501 can slide relative to each other. At the same time, when the sleeve shaft 502 rotates, the chute shaft 501 can be driven to rotate, thereby ensuring the synchronous rotation of the driving bevel gears 503 on both sides.

[0043] The outer side of the sleeve shaft 502 is fixedly sleeved with the external sleeve 504, and the external sleeve 504 is adapted to the sleeve chute provided on the drive sleeve 505, and the outer side of the drive sleeve 505 is fixedly sleeved with the sleeve gear 506, and the sleeve gear 506 is driven by the drive gear 507 and the drive motor 508. When the drive motor 508 drives the drive gear 507 to rotate, the drive gear 507 can drive the sleeve gear 506 and the drive sleeve 505 to rotate, and the drive sleeve 505 can drive the external sleeve 504 and the sleeve shaft 502 to rotate, and finally realize the synchronous driving of the chute shaft 501 and the sleeve shaft 502, so that The driving bevel gears 503 on both sides can rotate synchronously, and when the two driving bevel gears 503 rotate synchronously, the two reversing shafts 305 arranged on the two side-shift slides 102 can be synchronously driven through the connecting bevel gear 306 on the top, and finally the two lifting screw rods 302 are synchronously driven through the corresponding bevel gear connection mechanism. Since the slide groove shaft 501 and the sleeve shaft 502 can slide with each other, and the sleeve shaft 502 can slide correspondingly on the driving sleeve 505 through the external sleeve 504 arranged on the outside, the corresponding sliding of the two side-shift slides 102 on the test main platform 101 will not affect the corresponding synchronous drive of the lifting screw rods 302 on both sides.

[0044] By synchronously driving the lifting screw rods 302 on both sides, it is possible to synchronously drive the two lifting brackets 301, and then synchronously lift the two guiding brackets 103 and the lifting box 104 and the connecting box 105 that cooperate with the two guiding brackets 103, so that the matching height of the loading box body composed of the lifting box 104 and the connecting box 105 can be adjusted according to the actual loading height of the agricultural implements of the tractor. It should be noted that due to the mutual transmission of the bevel gear set, the specific rotation direction of the lifting screw rods 302 on both sides will change with the rotation direction of the bevel gear. Therefore, the thread rotation direction of the two lifting screw rods 302 needs to be adjusted according to the specific bevel gear setting to ensure the same direction and synchronous driving of the lifting brackets 301 on both sides.

[0045] See also Figure 8 Furthermore, the two adjusting screws 401 are respectively threadedly connected to the two side-shift slides 102, and the two adjusting screws 401 are rotatably mounted on the test main platform 101; the two linkage gears 402 are respectively fixedly mounted on the same side of the two adjusting screws 401; the rotating gear shaft 403 is rotatably mounted on the test main platform 101, and the gear set at the end of the rotating gear shaft 403 is engaged with the two linkage gears 402; the output shaft of the rotating motor 404 is connected to the rotating gear shaft 403, and the rotating motor 404 is fixedly mounted on the test main platform 101.

[0046] When the present embodiment is in use, the connection expenditure platform for connecting the two side shift slides 102 with the test main platform 101 is provided with corresponding threaded holes to cooperate with the correspondingly installed adjusting screw rods 401, and the same side of the two adjusting screw rods 401 is provided with the linkage gear 402, and the two linkage gears 402 are meshed with the gears provided at the ends of the rotating gear shaft 403. The gears at the ends of the rotating gear shaft 403 can drive the two linkage gears 402 and the two adjusting screw rods 401 to rotate by meshing with the two linkage gears 402, and then by adjusting the two The synchronous drive of the adjusting screw rod 401 realizes the synchronous drive of the two side-shift slides 102. It should be noted that the sliding directions of the two side-shift slides 102 are opposite when adjusting, and the rotation of the two linkage gears 402 by the rotating gear shaft 403 will make the two adjusting screw rods 401 rotate in the same direction. Therefore, the thread rotation directions of the two adjusting screw rods 401 need to be set to opposite directions to ensure the corresponding synchronous drive of the two side-shift slides 102, so that the user can adjust the matching position of the two side-shift slides 102 according to actual operating conditions.

[0047] See also Figure 3 、 Figure 6 and Figure 7 Preferably, the test assembly provided by the present invention also includes a lifting sleeve 601, a connecting sleeve 602, a sliding frame 603, an unfolding component and a guiding component, the unfolding component includes a guide bracket 604, a movable plate 605, a lifting rod 606, a double-headed threaded rod 607, a synchronous rotation mechanism 608 and a regulating motor 609, and the guiding component includes an introduction joint 701, a guide tube 702 and a falling joint 703.

[0048] Furthermore, the lifting sleeve 601 is slidably installed on the lifting box 104; the connecting sleeve 602 is slidably installed on the connecting box 105; the sliding frame 603 is slidably connected to the lifting sleeve 601 and fixedly installed on the connecting sleeve 602; the unfolding member is connected to the lifting box 104 for adjusting the lifting height of the lifting sleeve 601; the guiding member is connected to the connecting sleeve 602 for guiding the corresponding medium into the corresponding box structure.

[0049] Furthermore, the two guide brackets 604 are fixedly mounted on both sides of the lifting box 104; two movable plates 605 are slidably mounted on each guide bracket 604; the movable plate 605 is connected to the lifting sleeve 601 through the lifting rod 606, and the two sides of the lifting rod 606 are rotatably connected to the lifting sleeve 601 and the corresponding movable plate 605; the two double-headed threaded rods 607 are rotatably mounted on the two guide brackets 604, and the two sides of the double-headed threaded rods 607 set on the guide bracket 604 are threadedly connected to the two movable plates 605 slidably mounted on the same guide bracket 604; the two double-headed threaded rods 607 are connected through the synchronous rotation mechanism 608; the output shaft of the control motor 609 is connected to one of the double-headed threaded rods 607, and the control motor 609 is fixedly mounted on one side of the guide bracket 604.

[0050] When this embodiment is in use, the lifting box 104 and the connecting box 105 are respectively slidably provided with the lifting sleeve 601 and the connecting sleeve 602, and the connecting sleeve 602 and the lifting sleeve 601 are kept in sliding connection with each other by the sliding connecting frame 603. The up and down movement of the connecting sleeve 602 and the lifting sleeve 601 can change the maximum capacity of the entire loading box, and then the liquid loaded into the loading box and the corresponding medium capacity can be adjusted accordingly, so that the user can adjust the test load of the hydraulic lifting system in a wider range according to the actual detection conditions, so as to be more flexible and convenient in actual detection.

[0051] The guide brackets 604 are fixed on both sides of the lifting box 104, and two movable plates 605 are symmetrically slidably installed on each of the guide brackets 604. Each of the movable plates 605 is connected to the lifting sleeve 601 through the set lifting rod 606. The connection points on both sides of the lifting rod 606 can be rotated, so that when the two movable plates 605 on the corresponding guide brackets 604 move relative to each other, the lifting rod 606 will drive the lifting sleeve 601 up and down under the drive of the movable plate 605, thereby adjusting the actual lifting height of the lifting sleeve 601 and the connecting sleeve 602.

[0052] The movable plates 605 provided on the two guide brackets 604 are driven by the double-headed threaded rod 607, and the threads on both sides of the double-headed threaded rod 607 rotate in opposite directions. The two movable plates 605 on each guide bracket 604 respectively cooperate with the threads on both sides of the double-headed threaded rod 607, so that when the double-headed threaded rod 607 rotates, the movable plates 605 on both sides can expand and close together, and then cooperate with the lifting rod 606 to realize the corresponding drive of the lifting sleeve 601.

[0053] The double-headed threaded rods 607 provided on the two guide brackets 604 are synchronously connected through the synchronous rotation mechanism 608. The synchronous rotation mechanism 608 is composed of corresponding bevel gear transmission groups. The two bevel gears provided in the synchronous rotation mechanism 608 are respectively fixed on the ends of the two double-headed threaded rods 607, and then the two bevel gears fixed on the same rotating shaft drive the bevel gears provided on the ends of the double-headed threaded rods 607 to rotate, thereby finally realizing the synchronous driving of the two double-headed threaded rods 607. One of the two double-headed threaded rods 607 is driven by the regulating motor 609. When one double-headed threaded rod 607 rotates, the synchronous rotation mechanism 608 can drive the other double-headed threaded rod 607 to rotate. By providing two sets of the movable plates 605 and the corresponding lifting rods 606, the lifting sleeve 601 can be driven more stably.

[0054] Furthermore, the introduction joint 701 is fixedly installed on one side of the connection sleeve 602; the guide pipe 702 is connected to the introduction joint 701 and is arranged in the connection sleeve 602; the drop joint 703 is fixedly arranged on the guide pipe 702.

[0055] When this embodiment is in use, the side of the connecting sleeve 602 is provided with the introduction joint 701, and the guide tube 702 provided with the introduction joint 701 is arranged inside the connecting sleeve 602. The bottom of the guide tube 702 is fixed with the drop joint 703, and the drop joint 703 is made of a heavier metal material, so that the user can introduce clean water or corresponding medium into the loading box through the introduction joint 701, and at the same time, the liquid and medium inside the loading box can be discharged through the introduction joint 701 by using a corresponding pump body and corresponding pipe fittings. When the discharge is performed, since the drop joint 703 is always at the bottom of the liquid and the corresponding medium, the clean water and medium inside the loading box can be more thoroughly discharged, making it more convenient to adjust the load weight of the entire loading box.

[0056] The above disclosure is merely one or more preferred embodiments of the present application and is not intended to limit the scope of the present application. A person skilled in the art will understand that all or part of the processes of the above embodiments and equivalent changes made in accordance with the claims of the present application are still within the scope of the present application.

Claims

1. A tractor hydraulic lifting system auxiliary test device, comprising a test main platform, characterized in that: Also includes testing components; The test assembly includes a side-shift slide, a guide bracket, a lifting box, a connection box, a sensing component, a height adjustment component and a width adjustment component. The two side-shift slides are respectively slidably installed on both sides of the test main platform. The two guide brackets are correspondingly connected to the two side-shift slides through the height adjustment component. The lifting box is slidably set on one of the guide brackets. The connection box is slidably connected to the lifting box and slidably installed on the other guide bracket. The sensing component is connected to the guide bracket for measuring the weight of the mechanism composed of the lifting box and the connection box. The height adjustment component is connected to the side-shift slide for adjusting the guide height of the two guide brackets. The width adjustment component is connected to the test main platform for adjusting the matching position of the two side-shift slides.

2. The auxiliary testing device for the hydraulic lifting system of a tractor according to claim 1, characterized in that: The sensing component includes a pressure sensor, an infrared rangefinder and a distance sensing template. The two pressure sensors are respectively installed on the two conducting brackets. The pressure sensing modules of the pressure sensors are respectively abutted against the lifting box and the connection box arranged on the two conducting brackets; the infrared rangefinder is installed on the top of the conducting bracket where the connection box is provided; the distance sensing template is installed on the side of the connection box and works in conjunction with the infrared rangefinder arranged on the top of the conducting bracket.

3. The auxiliary testing device for the hydraulic lifting system of a tractor according to claim 1, characterized in that: The height adjustment component includes a lifting bracket, a lifting screw, a transfer component and a synchronous drive component. The lifting bracket is slidably mounted on each side shift slide, and two guide brackets are fixed on the top of each of the two lifting brackets; each lifting bracket is provided with a lifting screw for driving, and the lifting screw is threadedly connected to the corresponding lifting bracket and rotatably mounted on the corresponding side shift slide; The adapter component is connected to the lifting screw rod, and the synchronous drive component is connected to the test main platform. The lifting screw rods on both sides are synchronously driven through the cooperation between the adapter component and the synchronous drive component.

4. The auxiliary testing device for the hydraulic lifting system of a tractor according to claim 1, characterized in that: The width adjustment component includes an adjusting screw, a linkage gear, a rotating gear shaft and a rotating motor. The two adjusting screws are respectively threadedly connected to the two side-shift slides, and the two adjusting screws are rotatably mounted on the test main platform; the two linkage gears are respectively fixedly mounted on the same side of the two adjusting screws; the rotating gear shaft is rotatably mounted on the test main platform, and the gear arranged at the end of the rotating gear shaft is engaged with the two linkage gears; the output shaft of the rotating motor is connected to the rotating gear shaft, and the rotating motor is fixedly mounted on the test main platform.

5. The auxiliary testing device for the hydraulic lifting system of a tractor according to claim 3, characterized in that: The transfer component includes a connecting bevel gear, a double-headed bevel gear shaft, a reversing shaft and a connecting bevel gear, and the connecting bevel gear is fixedly installed at the bottom of each lifting screw rod; the two double-headed bevel gear shafts are respectively rotatably installed on the two side-shift slides, and corresponding bevel gears are provided at both ends of the double-headed bevel gear shaft, and one of the bevel gears of the double-headed bevel gear shaft is meshed with the connecting bevel gear on the same side-shift slide; the two reversing shafts are respectively rotatably installed on the two side-shift slides; the connecting bevel gear is fixed at both ends of the reversing shaft, and the connecting bevel gear provided at the lower end of the reversing shaft is meshed with another bevel gear of the double-headed bevel gear shaft provided on the same side-shift slide.

6. The auxiliary testing device for the hydraulic lifting system of a tractor according to claim 5, characterized in that: The synchronous driving component includes a slide shaft, a sleeve shaft and a driving bevel gear, the slide shaft and the sleeve shaft are respectively rotatably mounted on the two side shift slides, the slide shaft and the sleeve shaft are slidably connected; the two driving bevel gears are respectively fixedly mounted on both sides of the slide shaft and the sleeve shaft, the driving bevel gear arranged on the side of the slide shaft is meshed with the connecting bevel gear arranged on the upper end of the reversing shaft on the same side shift slide, and the driving bevel gear arranged on the side of the sleeve shaft is meshed with the connecting bevel gear arranged on the upper end of the reversing shaft on the same side shift slide.

7. The auxiliary test device for the hydraulic lifting system of a tractor according to claim 6, characterized in that: The synchronous drive component further includes an external sleeve, a driving sleeve, a sleeve gear, a driving gear and a driving motor. The external sleeve is fixedly sleeved on the sleeve shaft. The driving sleeve is slidably connected to the external sleeve and is rotatably mounted on the test main platform. The sleeve gear is fixedly sleeved on the driving sleeve. The driving gear is engaged with the sleeve gear and is rotatably mounted on the main test platform; the output shaft of the driving motor is connected to the driving gear, and the driving motor is fixedly mounted on the main test platform.

8. The auxiliary testing device for the hydraulic lifting system of a tractor according to claim 1, characterized in that: The test assembly also includes a lifting sleeve, a connecting sleeve, a sliding frame, an unfolding member and a guiding member. The lifting sleeve is slidably installed on the lifting box; the connecting sleeve is slidably installed on the connecting box; the sliding frame is slidably connected to the lifting sleeve and is fixedly installed on the connecting sleeve; the unfolding member is connected to the lifting box for adjusting the lifting height of the lifting sleeve; the guiding member is connected to the connecting sleeve for guiding the corresponding medium into the corresponding box structure.

9. The auxiliary testing device for the hydraulic lifting system of a tractor according to claim 8, characterized in that: The guiding component includes an introduction joint, a guide pipe and a drop joint. The introduction joint is fixedly installed on one side of the connection sleeve; the guide pipe is connected to the introduction joint and is arranged in the connection sleeve; the drop joint is fixedly arranged on the guide pipe.

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