CN109089446B

CN109089446B - A quick automatic hooking mechanism for tractor detects

Info

Publication number: CN109089446B
Application number: CN201811097451.6A
Authority: CN
Inventors: 丛茜; 姚飞; 李凯; 殷世琦
Original assignee: Jilin University
Current assignee: Jilin University
Priority date: 2018-09-20
Filing date: 2018-09-20
Publication date: 2024-01-02
Anticipated expiration: 2038-09-20
Also published as: CN109089446A

Abstract

The invention discloses a rapid automatic hooking mechanism for tractor detection, which belongs to the technical field of agricultural machinery detection. The capturing wheel rotates by taking the linkage shaft as the axis under the action of the driving oil cylinder and actively captures the lower pull rod of the tractor. After capturing, the lower pull rod of the tractor is extruded by the notch at the edge of the extrusion wheel to slowly move towards the inside of the base member. The lower pull rod spherical hinge is limited and stops moving when contacting with the limiting groove, and at the moment, the lower pull rod spherical hinge is matched with the pin hole. Finally, the built-in hydraulic pin penetrates through the pin to complete all the hanging actions. The invention can solve the problems of large difficulty, long time consumption and the like of the hooking of the lower pull rod of the tractor and the hydraulic oil cylinder in the process of detecting the qualification of the tractor, can realize the rapid automatic hooking of the tractor to be detected and the detecting equipment, can effectively ensure the detecting efficiency of the qualification detection of the tractor, and is convenient for application and popularization.

Description

A quick automatic hooking mechanism for tractor detects

Technical Field

The invention belongs to the technical field of agricultural machinery detection, and particularly relates to a rapid automatic hooking mechanism for tractor detection.

Background

The method is characterized in that the overall machine qualification detection is carried out on the tractor before delivery, the detection of the lifting capacity of the hydraulic suspension device is an important link, and the lifting force and static settlement of the hydraulic suspension device of the tractor, and the stability and reliability of the lifting action are mainly inspected. At present, the detection of the hydraulic lifting capacity of the tractor at home and abroad mainly takes weight loading and hydraulic cylinder loading as main materials so as to simulate the load condition of the tractor when the tractor is used for pulling farm implements. According to the hydraulic cylinder loading mode, the detection equipment is required to be connected with the tractor to be detected in a hanging mode by workers before detection. The traditional hanging rod piece is a metal round rod, a worker inserts pin shafts at two ends of the metal round rod into a spherical hinge of a lower pull rod of a tractor, and the middle of the rod piece is connected with a hydraulic cylinder through a metal hook with a chain. The rod piece and the chain are required to be lifted by workers, and the working strength of the workers is high. The pin shaft can not be accurately inserted into the lower pull rod spherical hinge during the hanging, so that the operation is needed to be repeated by workers, a great amount of time is consumed, and the detection of the beat of the high-rhythm tractor is not facilitated.

Disclosure of Invention

The invention aims to provide a rapid automatic hooking mechanism which can solve the problems of high hooking difficulty of a lower pull rod of a tractor and a hydraulic cylinder, long time consumption and the like in the process of detecting the qualification of the tractor.

The invention consists of a hanging device A, a linkage device B, a loading device C and a bearing platform assembly D, wherein the lower end of a vertical rod 17 of a connecting assembly I in the hanging device A is arranged in a connecting shaft 74 of an assembly IIIL in the linkage device B and is fixedly connected with the connecting shaft; the linkage device B is positioned above the loading device C and the bearing platform assembly D, wherein the bottom surface of a track I57 of the assembly I J in the linkage device B is fixedly connected with the upper surface of a concave platform I1 in a bearing platform I E of the bearing platform assembly D; the bottom surface of a rail II 79 of a component II K in the linkage B is fixedly connected with the upper surface of a concave table II 2 in a bearing table II F of a bearing table component D; the loading device C is arranged between a bearing platform IE and a bearing platform II F in the bearing platform assembly D, wherein a pulley I82 of the loading device C is in rolling connection with a groove I4 of the bearing platform IE; the upper lifting ring (84) of the piston rod 83 in the loading device C is arranged inside the connecting shaft 74 of the component IIIL in the linkage device B and is movably connected with the connecting shaft; the pulley II 85 of the loading device C is in rolling connection with the groove II 3 of the bearing platform II F; the lower ends of the bearing platform I E and the bearing platform II F in the bearing platform assembly D are fixedly connected to the ground and are perpendicular to the ground.

The hanging device A consists of a right component G, a left component H and a connecting component I, wherein the right component G and the left component H are symmetrical about an a plane.

The right component G consists of an extrusion wheel I6, a shaft core I7, a base component I8, a hydraulic pin I9, a clamping rod I10, a rotating shaft I11, a rotating shaft II 12, a clamping rod II 13, a capturing wheel I14, a capturing wheel II 15 and a limiting groove I55, wherein the base component I8 consists of a base plate I33 and a base plate II 39, and the base plate I33 and the base plate II 39 are identical in structure and are parallel to each other; the lower part of the base plate I33 is provided with a vertical plate I32, the upper part of the base plate I33 is provided with a sloping plate I36, the sloping plate I36 and the vertical plate I32 are in smooth transition, and the included angle between the sloping plate I36 and the vertical plate I32 is 135 degrees; the near lower end of the vertical plate I32 is provided with a square hole I31, the middle part of the vertical plate I32 is provided with a shaft core hole I34, and the joint of the vertical plate I32 and the inclined plate I36 is provided with a pin hole I35; the lower part of the base plate II 39 is a vertical plate II 41, the upper part of the base plate II 39 is a sloping plate II 37, the sloping plate II 37 and the vertical plate II 41 are in smooth transition, and the included angle between the sloping plate II 37 and the vertical plate II 41 is 135 degrees; a square hole II 42 is formed in the near lower end of the vertical plate II 41, a shaft core hole II 40 is formed in the middle of the vertical plate II 41, and a pin hole II 38 is formed in the joint of the vertical plate II 41 and the inclined plate II 37; the rotating shaft I11 is fixedly connected with the inclined plate I36, the rotating shaft I11 is movably connected with the clamping rod I10, the front end of the clamping rod I10 is movably connected with the capturing wheel I14, and the included angle between the clamping rod I10 and the inclined plate I36 in the substrate I33 is 90 degrees; the rotating shaft II 12 is fixedly connected with the inclined plate II 37, the rotating shaft II 12 is movably connected with the clamping rod II 13, the front end of the clamping rod II 13 is movably connected with the capturing wheel II 15, and the included angle between the clamping rod II 13 and the inclined plate II 37 in the base plate II 39 is 90 degrees; the middle part of the shaft core I7 is movably connected with the extrusion wheel I6, the right end of the shaft core I7 is fixedly connected with a shaft core hole I34 of a neutral plate I32 of the base plate I33, and the left end of the shaft core I7 is fixedly connected with a shaft core hole II 40 of a neutral plate II 41 of the base plate II 39; the right end of the limiting groove I55 is fixedly connected to the rear part of the shaft core hole I34 of the neutral plate I32 in the base plate I33, and the left end of the limiting groove I55 is fixedly connected to the rear part of the shaft core hole II 40 of the neutral plate II 41 in the base plate II 39.

The left component H consists of a base component II 20, a hydraulic pin II 21, a clamping rod III 22, a rotating shaft III 23, a rotating shaft IV 24, a clamping rod IV 25, a capturing wheel III 27, a capturing wheel IV 26, a shaft core II 28, a pressing wheel II 29 and a limiting groove II 56, wherein the base component II 20 consists of a substrate III 45 and a substrate IV 51, and the substrate III 45 and the substrate IV 51 have the same structure and are parallel to each other; the lower part of the base plate III 45 is provided with a vertical plate III 44, the upper part of the base plate III 45 is provided with a sloping plate III 48, the sloping plate III 48 and the vertical plate III 44 are in smooth transition, and the included angle between the sloping plate III 48 and the vertical plate III 44 is 135 degrees; a square hole III 43 is formed in the near lower end of the vertical plate III 44, a shaft core hole III 46 is formed in the middle of the vertical plate III 44, and a pin hole III 47 is formed in the joint of the vertical plate III 44 and the inclined plate III 48; the lower part of the base plate IV 51 is provided with a vertical plate IV 53, the upper part of the base plate IV 51 is provided with a sloping plate IV 49, the sloping plate IV 49 and the vertical plate IV 53 are in smooth transition, and the included angle between the sloping plate IV 49 and the vertical plate IV 53 is 135 degrees; a square hole IV 54 is formed in the near lower end of the vertical plate IV 53, a shaft core Kong 52 is arranged in the middle of the vertical plate IV 53, and a pin hole IV 50 is formed in the joint of the vertical plate IV 53 and the inclined plate IV 49; the rotating shaft III 23 is fixedly connected with the inclined plate III 48, the rotating shaft III 23 is movably connected with the clamping rod III 22, the front end of the clamping rod III 22 is movably connected with the capturing wheel III 27, and the included angle between the clamping rod III 22 and the inclined plate III 48 in the substrate III 45 is 90 degrees; the rotating shaft IV 24 is fixedly connected with the inclined plate IV 49, the rotating shaft IV 24 is movably connected with the clamping rod IV 25, the front end of the clamping rod IV 25 is movably connected with the capturing wheel IV 26, and the included angle between the clamping rod IV 25 and the inclined plate IV 49 in the substrate IV 51 is 90 degrees; the middle part of the shaft core II 28 is movably connected with the extrusion wheel II 29, the right end of the shaft core II 28 is fixedly connected with a shaft core hole III 46 of a neutral plate III 44 of a substrate III 45, and the left end of the shaft core II 28 is fixedly connected with a shaft core Kong 52 of a neutral plate IV 53 of a substrate IV 51; the right end of the limiting groove II 56 is fixedly connected to the rear part of the shaft core hole III 46 of the neutral plate III 44 in the base plate III 45, and the left end of the limiting groove I55 is fixedly connected to the rear part of the shaft core Kong of the neutral plate IV 53 in the base plate IV 51.

The connecting component I consists of a square shaft sleeve I5, a square shaft I16, a vertical rod 17, a cross rod 18, a square shaft II 19 and a square shaft sleeve II 30, wherein the upper end of the vertical rod 17 is fixedly connected to the center of the cross rod 18, and the vertical rod 17 is vertical to the cross rod 18; the left end of the square shaft I16 is fixedly connected to the right end of the cross rod 18, and the right end of the square shaft I16 is movably connected with the square shaft sleeve I5; the right end of the square shaft II 19 is fixedly connected to the left end of the cross rod 18, and the left end of the square shaft II 19 is movably connected with the square shaft sleeve II 30; the square shaft sleeve I5 passes through and is fixedly connected with a square hole II 42 of a neutral plate II 41 of the base plate II 39 and a square hole I31 of a neutral plate I32 of the base plate I33 from right to left; square sleeve ii 30 passes through and is fixedly connected with square hole iv 54 of neutral plate iv 53 in base plate iv 51 and square hole iii 43 of neutral plate iii 44 in base plate iii 45 from right to left.

The linkage device B consists of a component I J, a component II K and a component III L, wherein the component I J consists of a track I57, a rack I58, a sliding plate I61, a baffle I62, a piston rod I63, a driving oil cylinder I64, a baffle II 65, a return spring I66 and a baffle III 67, and the rear end of the rack I58 is fixedly connected with the baffle I62; the rear end of the sliding plate I61 is fixedly connected with a baffle II 65, and the lower surface of the sliding plate I61 is in sliding connection with the rail I57; the lower part of the rack I58 is connected with the upper part of the slide plate I61 in a sliding way; the rear end of the driving oil cylinder I64 is fixedly connected with the front of the baffle II 65; the rear part of the piston rod I63 is in sliding connection with the driving oil cylinder I64, and the front end of the piston rod I63 is fixedly connected with the rear part of the baffle I62; the front end of the return spring I66 is fixedly connected with the rear of the baffle II 65, and the rear end of the return spring I66 is fixedly connected with the front of the baffle III 67.

The assembly II K consists of a baffle IV 68, a return spring II 69, a baffle V70, a driving oil cylinder II 71, a piston rod II 72, a baffle VI 73, a rack II 77, a slide II 78 and a track II 79, wherein the rear end of the rack II 77 is fixedly connected with the baffle VI 73; the rear end of the sliding plate II 78 is fixedly connected with a baffle V70, and the lower surface of the sliding plate II 78 is in sliding connection with a track II 79; the lower side of the rack II 77 is connected with the upper side of the slide plate II 78 in a sliding way; the rear end of the driving oil cylinder II 71 is fixedly connected with the front of the baffle V70; the rear part of the piston rod II 72 is in sliding connection with the driving oil cylinder II 71, and the front end of the piston rod II 72 is fixedly connected with the rear part of the baffle VI 73; the front end of the return spring II 69 is fixedly connected with the rear of the baffle V70, and the rear end of the return spring II 69 is fixedly connected with the front of the baffle IV 73.

The assembly IIIL consists of a wheel axle I59, a gear I60, a connecting shaft 74, a gear II 75 and a wheel axle II 76, wherein the connecting shaft 74 is a hollow cylinder, the inner ends of the wheel axle I59 and the wheel axle II 76 are fixedly connected to two sides of the connecting shaft 74 respectively, and the central lines of the wheel axle I59 and the wheel axle II 76 are horizontal lines and are vertical to the longitudinal axis of the connecting shaft 74; the gear I60 is fixedly connected to the right end of the wheel axle I59, and the gear II 75 is fixedly connected to the left end of the wheel axle II 76; the assembly IJ and the left assembly IIK are symmetrically arranged about the b-plane, the gear I60 in the assembly IIIL is meshed with the rack I58 of the assembly IJ, and the gear II 75 in the assembly IIIL is meshed with the rack II 77 of the assembly IIK.

The loading device C consists of a loading oil cylinder 80, an axle III 81, a pulley I82, a piston rod 83, a hanging ring 84, a pulley II 85 and an axle IV 86, wherein the inner ends of the axle III 81 and the axle IV 86 are respectively fixedly connected to two sides of the upper part of the loading oil cylinder 80, and the axle III 81 and the axle IV 86 are on the same horizontal line and are vertical to the loading oil cylinder 80; the pulley I82 is movably connected to the outer end of the wheel axle III 81, and the pulley II 85 is movably connected to the outer end of the wheel axle IV 86; the piston rod 83 is arranged at the upper part of the loading oil cylinder 80 and is in sliding connection with the loading oil cylinder 80; the hanging ring 84 is fixedly connected to the top end of the piston rod 83.

The bearing platform assembly D consists of a bearing platform IE and a bearing platform IIF, wherein the bearing platform IE and the bearing platform IIF are both cubes and are symmetrical structures about a longitudinal section, a concave platform I1 is arranged at the top end of the bearing platform IE, and a groove I4 is formed in the inner side of the upper part of the bearing platform IE; the top of the bearing platform II F is provided with a concave platform II 2, and the inner side of the upper part of the bearing platform II F is provided with a groove II 3.

The working principle and working process of the invention are as follows:

1. the switch is started to supply oil for the driving oil cylinder I64 and the driving oil cylinder II 71, and the driving oil cylinder I64 and the driving oil cylinder II 71 respectively push the racks I58 and II 77 to move on the sliding plate I61 and the sliding plate II 78 so as to drive the gear I60 and the gear II 75. Since the gear I60 and the gear II 75 are welded to the coupling shaft 74 through the wheel axle I59 and the wheel axle II 76, the hitch A rotates in the direction of the tractor 91 to be tested about the coupling shaft 74.

2. When the hitching device A slowly rotates towards the direction of the tractor 91 to be tested, the torsion springs are arranged in the rotating shafts I11 and II 12, so that the clamping rods I10 and II can be mutually clamped, and the capturing wheel I14 and the capturing wheel II 15 are respectively and movably connected with the front ends of the clamping rods I10 and II, so that the capturing wheel I14 and the capturing wheel II 15 are mutually extruded, and the capturing wheel I14 and the capturing wheel II 15 can be limited to transversely shake when first contacting the lower pull rod I87 of the tractor 91 to be tested; torsion springs are arranged in the rotating shaft III 23 and the rotating shaft IV 24, so that the clamping rods III 22 and IV 25 can be clamped with each other, and the capturing wheel III 27 and IV 26 are respectively and movably connected with the front ends of the clamping rods III 22 and IV 25, so that the capturing wheel III 27 and the capturing wheel IV 26 are mutually extruded, and transverse shaking of the capturing wheel III 27 and the capturing wheel IV 26 can be limited when the capturing wheel III 27 and the capturing wheel IV 26 firstly contact with the lower pull rod II 89 of the tractor 91 to be tested. If the middle gaps of the capturing wheels I14 and II 15 are not in the same straight line with the lower pull rod I87 and the lower pull rod II 89, the square shaft sleeve I5 can move properly along the stress direction, and the capturing wheels I14 and II 15 are assisted to position and capture the lower pull rod I87; if the gaps between the capturing wheel III 27 and the capturing wheel IV 26 and the lower pull rod II 89 are not on the same straight line, the square shaft sleeve II 30 can move properly along the stress direction, and the capturing wheel III 27 and the capturing wheel IV 26 are assisted to position and capture the lower pull rod II 89.

3. After capturing, the tail ends of the lower pull rod I87 and the lower pull rod II 89 enter edge notches of the extrusion wheel I6 and the extrusion wheel II 29, the extrusion wheel I6 and the extrusion wheel II 29 extrude the lower pull rod I63 and the lower pull rod II 65, the return spring I66 and the return spring II 69 are stressed and compressed, the rotating axle center of the hanging device A moves backwards, the spherical hinge I88 and the spherical hinge II 90 are guaranteed to enter the limiting groove I55 and the limiting groove II 56 respectively, and the spherical hinge I88 and the spherical hinge II 90 are protruded, so that the lower pull rod I87 and the lower pull rod II 89 of the tractor 91 to be tested move to a certain position under the action of the limiting groove I55 and the limiting groove II 56, at the moment, the two sides of the spherical hinge I88 are matched with the pin holes I35 and the pin holes II 38, the two sides of the spherical hinge II 90 are matched with the pin holes III 47 and the pin holes IV 50. Finally, the hydraulic pin I9 and the hydraulic pin II 21 are arranged in the hydraulic pin to penetrate the pin, so that all the hanging actions are completed.

The catch wheel on the hanging rod piece rotates by taking the connecting shaft as the axis under the action of the driving oil cylinder, and actively catches the lower pull rod of the tractor. After the catching is completed, the lower pull rod of the tractor and the notch at the edge of the extruding wheel are mutually extruded and slowly move towards the inside of the metal rod piece. The relative position of the rack and the driving oil cylinder can be changed in the moving process, and the reset spring can be compressed. When the lower pull rod spherical hinge contacts with the limiting groove, the lower pull rod spherical hinge is limited and stops moving, and at the moment, the lower pull rod spherical hinge is matched with the pin hole on the rod piece. Finally, the built-in hydraulic pin penetrates through the pin to complete all the hanging actions. Through the mode, the quick automatic hooking of the tractor to be detected and the detection equipment can be realized, the detection efficiency of the tractor qualification detection can be effectively ensured, and the method has stronger popularization and application values.

Drawings

FIG. 1 is a front view of a quick automated hitch mechanism for tractor inspection

FIG. 2 is a side view of a platform assembly D

Fig. 3 is a side view of the hitch a

Fig. 4 is a front view of the hitching apparatus A

FIG. 5 is a detailed view of the base member I of the hitch A

FIG. 6 is a detailed view of base member II of hitch A

FIG. 7 is a right side view of the hitch

FIG. 8 is a cross-sectional view taken along line A-A of FIG. 4

Fig. 9 is a top view of linkage B

Fig. 10 is a side view of linkage B

Fig. 11 is a front view of the loading device C

FIG. 12 is a right side view of the loading device C

FIG. 13 is a side view of a quick automated hitch mechanism for tractor inspection

FIG. 14 is a station schematic diagram of a quick automated hitch mechanism for tractor inspection

Wherein: A. the hydraulic loading device comprises a hanging device B, a linkage device C, a loading device D, a bearing platform assembly E, a bearing platform I, a bearing platform II G, a right component H, a left component I, a connecting component J, a component I K, a component II, a component III 1, a concave platform I2, a concave platform II 3, a groove II 4, a groove I5, a square shaft sleeve I6, a squeezing wheel I7, a shaft core I8, a basic component I9, a hydraulic pin I10, a clamping rod I11, a rotating shaft I12, a rotating shaft II 13, a clamping rod II 14, a capturing wheel I15, a capturing wheel II 16, a square shaft I17, a vertical rod 18, a transverse rod 19, a square shaft II 20, a basic component II 21, a hydraulic pin II 22, a clamping rod III 23, a rotating shaft III 24, a rotating shaft IV 25, a clamping rod IV 15, a capturing wheel III 28, a shaft core II 29, a squeezing wheel II 30 and a square shaft II. Square bore I32, vertical plate I33, base plate I34, axial bore I35, pin bore I36, inclined plate I37, inclined plate II 38, pin bore II 39, base plate II 40, axial bore II 41, vertical plate II 42, square bore II 43, square bore III 44, vertical plate III 45, base plate III 46, axial bore III 47, pin bore III 48, inclined plate III 49, inclined plate IV 50, pin bore IV 51, base plate IV 52, axial bore Kong, vertical plate IV 54, square bore IV 55, limiting groove I56, limiting groove II 57, track I58, rack I59, axle I60, gear I61, slide plate I62, baffle I63, piston rod I64, driving cylinder I65, baffle II 66, return spring I67, baffle III 68, baffle IV 69, return spring II 70, baffle V71, driving cylinder II 72, piston Rod II 73, baffle VI 74, connecting shaft 75, gear II 76, wheel shaft II 77, rack II 78, slide plate II 79, track II 80, loading cylinder 81, wheel shaft III 82, pulley I83, piston rod 84, lifting ring 85, pulley II 86, wheel shaft IV 87, lower pull rod I88, spherical hinge I89, lower pull rod II 90, spherical hinge II 91, tractor to be tested

Detailed Description

As shown in fig. 1, 13 and 14, the invention comprises a hanging device a, a linkage device B, a loading device C and a bearing platform assembly D, wherein the lower end of a vertical rod 17 of a connecting assembly I in the hanging device a is arranged inside a connecting shaft 74 of an assembly ill in the linkage device B and is fixedly connected with the connecting shaft; the linkage device B is positioned above the loading device C and the bearing platform assembly D, wherein the bottom surface of a track I57 of the assembly I J in the linkage device B is fixedly connected with the upper surface of a concave platform I1 in a bearing platform I E of the bearing platform assembly D; the bottom surface of a rail II 79 of a component II K in the linkage B is fixedly connected with the upper surface of a concave table II 2 in a bearing table II F of a bearing table component D; the loading device C is arranged between a bearing platform IE and a bearing platform II F in the bearing platform assembly D, wherein a pulley I82 of the loading device C is in rolling connection with a groove I4 of the bearing platform IE; the upper lifting ring (84) of the piston rod 83 in the loading device C is arranged inside the connecting shaft 74 of the component IIIL in the linkage device B and is movably connected with the connecting shaft; the pulley II 85 of the loading device C is in rolling connection with the groove II 3 of the bearing platform II F; the lower ends of the bearing platform I E and the bearing platform II F in the bearing platform assembly D are fixedly connected to the ground and are perpendicular to the ground.

As shown in fig. 3, 4, 5, 6, 7 and 8, the hooking device a is composed of a right component G, a left component H and a connecting component I, wherein the right component G and the left component H are symmetrical about an a-plane.

As shown in fig. 9 and 10, the linkage B is composed of a component ij, a component ii K and a component ill, wherein the component ij is composed of a track i 57, a rack i 58, a slide plate i 61, a baffle i 62, a piston rod i 63, a driving cylinder i 64, a baffle ii 65, a return spring i 66 and a baffle iii 67, and the baffle i 62 is fixedly connected to the rear end of the rack i 58; the rear end of the sliding plate I61 is fixedly connected with a baffle II 65, and the lower surface of the sliding plate I61 is in sliding connection with the rail I57; the lower part of the rack I58 is connected with the upper part of the slide plate I61 in a sliding way; the rear end of the driving oil cylinder I64 is fixedly connected with the front of the baffle II 65; the rear part of the piston rod I63 is in sliding connection with the driving oil cylinder I64, and the front end of the piston rod I63 is fixedly connected with the rear part of the baffle I62; the front end of the return spring I66 is fixedly connected with the rear of the baffle II 65, and the rear end of the return spring I66 is fixedly connected with the front of the baffle III 67.

As shown in fig. 11 and 12, the loading device C is composed of a loading cylinder 80, a wheel axle iii 81, a pulley i 82, a piston rod 83, a lifting ring 84, a pulley ii 85, and a wheel axle iv 86, wherein inner ends of the wheel axle iii 81 and the wheel axle iv 86 are respectively fixedly connected to two sides of the upper portion of the loading cylinder 80, and the wheel axle iii 81 and the wheel axle iv 86 are on a horizontal line and perpendicular to the loading cylinder 80; the pulley I82 is movably connected to the outer end of the wheel axle III 81, and the pulley II 85 is movably connected to the outer end of the wheel axle IV 86; the piston rod 83 is arranged at the upper part of the loading oil cylinder 80 and is in sliding connection with the loading oil cylinder 80; the hanging ring 84 is fixedly connected to the top end of the piston rod 83.

As shown in FIG. 2, the bearing platform assembly D consists of a bearing platform IE and a bearing platform IIF, wherein the bearing platform IE and the bearing platform IIF are both cubes and are symmetrical structures about a longitudinal section, a concave platform I1 is arranged at the top end of the bearing platform IE, and a groove I4 is formed in the inner side of the upper part of the bearing platform IE; the top of the bearing platform II F is provided with a concave platform II 2, and the inner side of the upper part of the bearing platform II F is provided with a groove II 3.

Claims

1. The quick automatic hitching mechanism for tractor detection consists of a hitching device (A), a linkage device (B), a loading device (C) and a bearing platform assembly (D), wherein the lower end of a vertical rod (17) of a connecting assembly (I) in the hitching device (A) is arranged in a connecting shaft (74) of an assembly III (L) in the linkage device (B) and is fixedly connected with the connecting shaft; the linkage device (B) is positioned above the loading device (C) and the bearing platform assembly (D), wherein the bottom surface of a track I (57) of the assembly I (J) in the linkage device (B) is fixedly connected with the upper surface of a concave platform I (1) in a bearing platform I (E) of the bearing platform assembly (D); the bottom surface of a track II (79) of a component II (K) in the linkage device (B) is fixedly connected to the upper surface of a concave table II (2) in a bearing table II (F) of a bearing table component (D); the loading device (C) is arranged between the bearing platform I (E) and the bearing platform II (F) in the bearing platform assembly (D), wherein a pulley I (82) of the loading device (C) is in rolling connection with a groove I (4) of the bearing platform I (E); the upper lifting ring (84) of the piston rod (83) in the loading device (C) is arranged in the connecting shaft (74) of the component III (L) in the linkage device (B) and is movably connected with the connecting shaft; the pulley II (85) of the loading device (C) is in rolling connection with the groove II (3) of the bearing platform II (F); the lower ends of a bearing platform I (E) and a bearing platform II (F) in the bearing platform assembly (D) are fixedly connected to the ground and are vertical to the ground; the loading device (C) consists of a loading oil cylinder (80), an axle III (81), a pulley I (82), a piston rod (83), a lifting ring (84), a pulley II (85) and an axle IV (86), wherein the inner ends of the axle III (81) and the axle IV (86) are respectively fixedly connected to two sides of the upper part of the loading oil cylinder (80), and the axle III (81) and the axle IV (86) are on the same horizontal line and are vertical to the loading oil cylinder (80); the pulley I (82) is movably connected to the outer end of the wheel axle III (81), and the pulley II (85) is movably connected to the outer end of the wheel axle IV (86); the piston rod (83) is arranged at the upper part of the loading oil cylinder (80) and is in sliding connection with the loading oil cylinder (80); the hanging ring (84) is fixedly connected to the top end of the piston rod (83); the bearing platform assembly (D) consists of a bearing platform I (E) and a bearing platform II (F), wherein the bearing platform I (E) and the bearing platform II (F) are both cubes, and are symmetrical structures about a longitudinal section, a concave platform I (1) is arranged at the top end of the bearing platform I (E), and a groove I (4) is formed in the inner side of the upper part of the bearing platform I (E); a concave table II (2) is arranged at the top end of the bearing table II (F), and a groove II (3) is arranged on the inner side of the upper part of the bearing table II (F); the method is characterized in that: the hanging device (A) consists of a right component (G), a left component (H) and a connecting component (I), wherein the right component (G) and the left component (H) are symmetrical about an a plane; the right component (G) consists of an extrusion wheel I (6), a shaft core I (7), a base component I (8), a hydraulic pin I (9), a clamping rod I (10), a rotating shaft I (11), a rotating shaft II (12), a clamping rod II (13), a capturing wheel I (14), a capturing wheel II (15) and a limiting groove I (55), wherein the base component I (8) consists of a base plate I (33) and a base plate II (39), and the base plate I (33) and the base plate II (39) are identical in structure and are parallel to each other; the lower part of the base plate I (33) is provided with a vertical plate I (32), the upper part of the base plate I (33) is provided with an inclined plate I (36), the inclined plate I (36) and the vertical plate I (32) are in smooth transition, and the included angle between the inclined plate I (36) and the vertical plate I (32) is 135 degrees; the near lower end of the vertical plate I (32) is provided with a square hole I (31), the middle part of the vertical plate I (32) is provided with a shaft core hole I (34), and the joint of the vertical plate I (32) and the inclined plate I (36) is provided with a pin hole I (35); the lower part of the base plate II (39) is provided with a vertical plate II (41), the upper part of the base plate II (39) is provided with a sloping plate II (37), the sloping plate II (37) and the vertical plate II (41) are in smooth transition, and the included angle between the sloping plate II (37) and the vertical plate II (41) is 135 degrees; a square hole II (42) is formed in the near lower end of the vertical plate II (41), a shaft core hole II (40) is formed in the middle of the vertical plate II (41), and a pin hole II (38) is formed in the joint of the vertical plate II (41) and the inclined plate II (37); the rotating shaft I (11) is fixedly connected with the inclined plate I (36), the rotating shaft I (11) is movably connected with the clamping rod I (10), the front end of the clamping rod I (10) is movably connected with the capturing wheel I (14), and the included angle between the clamping rod I (10) and the inclined plate I (36) in the base plate I (33) is 90 degrees; the rotating shaft II (12) is fixedly connected with the inclined plate II (37), the rotating shaft II (12) is movably connected with the clamping rod II (13), the front end of the clamping rod II (13) is movably connected with the capturing wheel II (15), and the included angle between the clamping rod II (13) and the inclined plate II (37) in the base plate II (39) is 90 degrees; the middle part of the shaft core I (7) is movably connected with the extrusion wheel I (6), the right end of the shaft core I (7) is fixedly connected with a shaft core hole I (34) of a neutral plate I (32) in the base plate I (33), and the left end of the shaft core I (7) is fixedly connected with a shaft core hole II (40) of a neutral plate II (41) in the base plate II (39); the right end of the limiting groove I (55) is fixedly connected to the rear part of the shaft core hole I (34) of the neutral plate I (32) in the base plate I (33), and the left end of the limiting groove I (55) is fixedly connected to the rear part of the shaft core hole II (40) of the neutral plate II (41) in the base plate II (39); the left component (H) consists of a base component II (20), a hydraulic pin II (21), a clamping rod III (22), a rotating shaft III (23), a rotating shaft IV (24), a clamping rod IV (25), a capturing wheel III (27), a capturing wheel IV (26), a shaft core II (28), a squeezing wheel II (29) and a limiting groove II (56), wherein the base component II (20) consists of a base plate III (45) and a base plate IV (51), and the base plate III (45) and the base plate IV (51) are identical in structure and are parallel to each other; the lower part of the base plate III (45) is provided with a vertical plate III (44), the upper part of the base plate III (45) is provided with an inclined plate III (48), the inclined plate III (48) and the vertical plate III (44) are in smooth transition, and the included angle between the inclined plate III (48) and the vertical plate III (44) is 135 degrees; a square hole III (43) is formed in the near lower end of the vertical plate III (44), a shaft core hole III (46) is formed in the middle of the vertical plate III (44), and a pin hole III (47) is formed in the joint of the vertical plate III (44) and the inclined plate III (48); the lower part of the base plate IV (51) is provided with a vertical plate IV (53), the upper part of the base plate IV (51) is provided with an inclined plate IV (49), the inclined plate IV (49) and the vertical plate IV (53) are in smooth transition, and the included angle between the inclined plate IV (49) and the vertical plate IV (53) is 135 degrees; a square hole IV (54) is formed in the near lower end of the vertical plate IV (53), a shaft core Kong (52) is arranged in the middle of the vertical plate IV (53), and a pin hole IV (50) is formed in the joint of the vertical plate IV (53) and the inclined plate IV (49); the rotating shaft III (23) is fixedly connected with the inclined plate III (48), the rotating shaft III (23) is movably connected with the clamping rod III (22), the front end of the clamping rod III (22) is movably connected with the capturing wheel III (27), and the included angle between the clamping rod III (22) and the inclined plate III (48) in the base plate III (45) is 90 degrees; the rotating shaft IV (24) is fixedly connected with the inclined plate IV (49), the rotating shaft IV (24) is movably connected with the clamping rod IV (25), the front end of the clamping rod IV (25) is movably connected with the capturing wheel IV (26), and the included angle between the clamping rod IV (25) and the inclined plate IV (49) in the substrate IV (51) is 90 degrees; the middle part of the shaft core II (28) is movably connected with the extrusion wheel II (29), the right end of the shaft core II (28) is fixedly connected with a shaft core hole III (46) of a neutral plate III (44) in the base plate III (45), and the left end of the shaft core II (28) is fixedly connected with a shaft core Kong (52) of a neutral plate IV (53) in the base plate IV (51); the right end of the limiting groove II (56) is fixedly connected to the rear part of the shaft core hole III (46) of the neutral plate III (44) in the base plate III (45), and the left end of the limiting groove I (55) is fixedly connected to the rear part of the shaft core Kong (52) of the neutral plate IV (53) in the base plate IV (51); the connecting component (I) consists of a square shaft sleeve I (5), a square shaft I (16), a vertical rod (17), a cross rod (18), a square shaft II (19) and a square shaft sleeve II (30), wherein the upper end of the vertical rod (17) is fixedly connected to the center of the cross rod (18), and the vertical rod (17) is perpendicular to the cross rod (18); the left end of the square shaft I (16) is fixedly connected to the right end of the cross rod (18), and the right end of the square shaft I (16) is movably connected with the square shaft sleeve I (5); the right end of the square shaft II (19) is fixedly connected with the left end of the cross rod (18), and the left end of the square shaft II (19) is movably connected with the square shaft sleeve II (30); the square shaft sleeve I (5) passes through and is fixedly connected with a square hole II (42) of a neutral plate II (41) in the base plate II (39) and a square hole I (31) of a neutral plate I (32) in the base plate I (33) from right to left; the square shaft sleeve II (30) passes through and is fixedly connected with a square hole IV (54) of a middle plate IV (53) of the base plate IV (51) and a square hole III (43) of a middle plate III (44) of the base plate III (45) from right to left.

2. The quick automated hitch mechanism for tractor testing of claim 1, wherein: the linkage device (B) consists of a component I (J), a component II (K) and a component III (L), wherein the component I (J) consists of a track I (57), a rack I (58), a slide plate I (61), a baffle I (62), a piston rod I (63), a driving oil cylinder I (64), a baffle II (65), a return spring I (66) and a baffle III (67), and the rear end of the rack I (58) is fixedly connected with the baffle I (62); the rear end of the sliding plate I (61) is fixedly connected with a baffle II (65), and the lower surface of the sliding plate I (61) is in sliding connection with the track I (57); the lower part of the rack I (58) is connected with the upper part of the slide plate I (61) in a sliding way; the rear end of the driving oil cylinder I (64) is fixedly connected with the front of the baffle II (65); the rear part of the piston rod I (63) is in sliding connection with the driving oil cylinder I (64), and the front end of the piston rod I (63) is fixedly connected with the rear part of the baffle I (62); the front end of the return spring I (66) is fixedly connected with the rear of the baffle II (65), and the rear end of the return spring I (66) is fixedly connected with the front of the baffle III (67); the assembly II (K) consists of a baffle IV (68), a return spring II (69), a baffle V (70), a driving oil cylinder II (71), a piston rod II (72), a baffle VI (73), a rack II (77), a slide plate II (78) and a track II (79), wherein the rear end of the rack II (77) is fixedly connected with the baffle VI (73); the rear end of the sliding plate II (78) is fixedly connected with the baffle V (70), and the lower surface of the sliding plate II (78) is in sliding connection with the track II (79); the lower part of the rack II (77) is connected with the upper part of the slide plate II (78) in a sliding way; the rear end of the driving oil cylinder II (71) is fixedly connected with the front of the baffle V (70); the rear part of a piston rod II (72) is in sliding connection with a driving oil cylinder II (71), and the front end of the piston rod II (72) is fixedly connected with the rear part of a baffle VI (73); the front end of the reset spring II (69) is fixedly connected with the rear of the baffle V (70), and the rear end of the reset spring II (69) is fixedly connected with the front of the baffle IV (68); the assembly III (L) consists of a wheel axle I (59), a gear I (60), a connecting shaft (74), a gear II (75) and a wheel axle II (76), wherein the connecting shaft (74) is a hollow cylinder, the inner ends of the wheel axle I (59) and the wheel axle II (76) are fixedly connected to two sides of the connecting shaft (74) respectively, and the central lines of the wheel axle I (59) and the wheel axle II (76) are horizontal lines and are perpendicular to the longitudinal axis of the connecting shaft (74); the gear I (60) is fixedly connected to the right end of the wheel axle I (59), and the gear II (75) is fixedly connected to the left end of the wheel axle II (76); the assembly I (J) and the left assembly II (K) are symmetrically arranged on the b plane, the gear I (60) in the assembly III (L) is meshed with the rack I (58) of the assembly I (J), and the gear II (75) in the assembly III (L) is meshed with the rack II (77) of the assembly II (K).