Compression spring lateral movement avoidance type mower

Abstract

The utility model discloses a compression spring lateral movement avoiding type mower which comprises a rack, supporting wheels are arranged on the two sides of the rack, a suspension frame is arranged on the front top of the rack, a lateral movement mechanism is arranged on the rear front face of the rack, a connecting base is arranged on the lateral movement mechanism, an avoiding frame is hinged to the connecting base, and a compression spring is arranged on the avoiding frame. A receding assembly is arranged between one end of the receding frame and the connecting base, and a mowing disc is arranged at the other end of the receding frame. According to the utility model, the avoidance component is adopted, namely the chain drives the spring to compress to realize the function that the mowing disc rotates and laterally moves to avoid obstacles, the performance is stable, the transmission is reliable, and the service life is longer; the hydraulic motor on the mowing disc rotates through hydraulic output of the tractor, the mowing cutter is driven to rotate, the tractor moves forwards, a lawn is trimmed by the rotating mowing cutter according to the set height, and therefore lawn trimming or orchard weeding operation is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, and particularly relates to a lawn mower with a compression spring for side shift and avoidance. Background Art

[0002] At present, the side shift and avoidance type lawn mowers on the market mainly rely on the telescopic movement of gas springs to achieve the function of avoiding obstacles on the side of the mowing disc. To achieve this function, the gas springs must be frequently telescoped, resulting in the gas springs being particularly prone to damage and affecting the normal operation of the lawn mower. Content of the Utility Model

[0003] The purpose of the utility model is to provide a lawn mower with a compression spring for side shift and avoidance in view of the defects and deficiencies of the prior art.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is: a lawn mower with a compression spring for side shift and avoidance, including a frame, support wheels are arranged on both sides of the frame, and a suspension bracket is arranged at the front top of the frame. The innovation lies in that: a side shift mechanism is arranged on the rear front surface of the frame, a connecting seat is arranged on the side shift mechanism, an avoidance bracket is hinged on the connecting seat, an avoidance component is arranged between one end of the avoidance bracket and the connecting seat, and a mowing disc is arranged at the other end of the avoidance bracket;

[0005] The connecting seat includes a bottom plate, side plates are respectively arranged on the upper, lower, left and right sides of the bottom plate, one end of the side plate is connected with the side shift mechanism, and a compression spring guide sleeve, a support plate and a bearing seat are respectively arranged between the other ends of the side plates. The compression spring guide sleeve penetrates through the support plate, and a return rotation shaft is arranged in the bearing seat and is hinged with the avoidance bracket;

[0006] The avoidance bracket includes a grooved plate with a U-shaped structure, a connecting plate is arranged on the back surface of the grooved plate and is hinged with the return rotation shaft, and a guide sleeve is arranged in the groove of the grooved plate;

[0007] The avoidance component includes a bolt, a compression spring seat, a compression spring, a chain, an adjusting bolt and an adjusting nut. The compression spring is located in the compression spring guide sleeve, the compression spring seat is located at one end of the compression spring, one end of the chain passes through the compression spring and is fixedly connected with the compression spring seat, and the compression spring guide sleeve is sealed by the bolt. The adjusting nut is located in the guide sleeve and is fixedly connected with the other end of the chain. The adjusting bolt enters from the other end of the guide sleeve and is in threaded connection with the adjusting nut. The chain is wound around the outside of the bearing seat.

[0008] Further, the side shift mechanism includes a side shift rod with a telescopic structure and a side shift oil cylinder. The end of the piston rod of the side shift oil cylinder is fixedly connected with the connecting seat, and the connecting seat is fixedly connected with the side shift rod.

[0009] Further, the mowing disc includes a swing arm. One end of the swing arm is hinged to the avoidance frame, and the other end is connected to the motor mounting base. An intermediate adjusting rod is also hingedly arranged between the motor mounting base and the avoidance frame. A left adjusting rod and a right adjusting rod are respectively arranged on the left and right sides of the intermediate adjusting rod, and a floating spring is sleeved on the right adjusting rod. A hydraulic motor is arranged on the motor mounting base, and a mowing knife is arranged on the output shaft of the hydraulic motor.

[0010] Further, a cutter disc clamping plate is arranged below the motor mounting base, and a cutter disc is arranged inside the cutter disc clamping plate.

[0011] Further, a profiling plate is arranged at the end of the output shaft of the hydraulic motor.

[0012] After adopting the above structure, the beneficial effects of the present utility model are as follows:

[0013] (1) The present utility model adopts an avoidance assembly, that is, the chain drives the spring to compress to realize the function of the mowing disc rotating and laterally moving to avoid obstacles. The performance is stable, the transmission is reliable, and the service life is relatively long;

[0014] (2) The present utility model utilizes the hydraulic output of the tractor to rotate the hydraulic motor on the mowing disc, drive the mowing knife to rotate, and the tractor moves forward. The lawn is trimmed by the rotating mowing knife at a set height, thus completing the lawn trimming or orchard weeding operation;

[0015] (3) The present utility model utilizes the lateral movement mechanism to realize lateral movement, and can cross the guardrail for long-distance operation;

[0016] (4) The present utility model is applicable to lawns with obstacles in parks, airports, and roads, and weeding between orchard plants;

[0017] (5) The present utility model adopts an integral mowing knife, the gap does not need to be adjusted, the hydraulic transmission, the vibration is small, and the performance is stable. Description of the Drawings

[0018] Figure 1 is the structural schematic diagram of the present utility model;

[0019] Figure 2 is the front view of the present utility model;

[0020] Figure 3 is Figure 2 the sectional view taken along A-A in

[0021] Figure 4 is the structural schematic diagram of the connecting seat in the present utility model;

[0022] Figure 5 is the structural schematic diagram of the avoidance frame in the present utility model;

[0023] Figure 6This is a schematic structural diagram of the mowing disc in the present utility model.

[0024] Explanation of reference numerals:

[0025] 1 Frame, 2 Support wheels, 3 Suspension bracket, 4 Side shift mechanism, 41 Side shift rod, 42 Side shift oil cylinder, 5 Connecting seat, 51 Bottom plate, 52 Side plate, 53 Spring guide sleeve, 54 Support plate, 55 Bearing seat, 6 Avoidance bracket, 61 Groove plate, 62 Connecting plate, 63 Guide sleeve, 7 Avoidance assembly, 71 Bolt, 72 Spring seat, 73 Compression spring, 74 Chain, 75 Adjusting bolt, 76 Adjusting nut, 8 Mowing disc, 81 Swing arm, 82 Motor mounting seat, 83 Intermediate adjusting rod, 84 Left adjusting rod, 85 Floating spring, 86 Hydraulic motor, 87 Mowing knife, 88 Knife disc clamping plate, 89 Knife disc, 810 Profiling plate. Specific embodiments

[0026] The present utility model will be further described below with reference to the accompanying drawings.

[0027] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0028] Refer to Figures 1-6 , a spring-loaded side-shift avoidance type mower, including a frame 1, support wheels 2 are arranged on both sides of the frame 1, a suspension bracket 3 is arranged at the front top thereof, a side shift mechanism 4 is arranged on the rear front of the frame 1, a connecting seat 5 is arranged on the side shift mechanism 4, an avoidance bracket 6 is hingedly arranged on the connecting seat 5, an avoidance assembly 7 is arranged between one end of the avoidance bracket 6 and the connecting seat 5, and a mowing disc 8 is arranged at the other end of the avoidance bracket 6; specifically, first, select a tractor with hydraulic output, and perform three-point suspension connection between the hydraulic suspension of the tractor and the suspension bracket 3 of the mower; second, connect the side shift mechanism 4 and the mowing disc 8 to the hydraulic system of the tractor; third, when the mower is working, the pressure oil output by the tractor's hydraulic system drives the mowing disc 8 to rotate, the tractor moves forward, and in the area where the mowing disc 8 passes, the herbaceous plants are cut off and thrown out by the high-speed rotating mowing disc 8; when encountering an obstacle along the way, the mowing disc rotates and avoids the obstacle through the connecting seat 5, the avoidance bracket 6 and the avoidance assembly 7, and after passing over the obstacle, the avoidance assembly 7 automatically drives the mowing disc to return to work; fourth, when long-distance side shift work is required, the side shift mechanism 4 can be used to achieve long-distance operation.

[0029] Refer to Figure 4, the connecting seat 5 includes a bottom plate 51. Side plates 52 are respectively arranged on the upper, lower, left and right sides of the bottom plate 51. One end of each side plate 52 is connected to the side shifting mechanism 4, and a spring guide sleeve 53, a support plate 54 and a bearing seat 55 are respectively arranged between the other ends. The spring guide sleeve 53 penetrates through the support plate 54. A rotating shaft is arranged in the bearing seat 55 and is hinged to the avoidance frame 6; the connecting seat 5 moves horizontally along with the side shifting mechanism 4, thereby increasing the working distance of the mowing disc 8; the avoidance frame 6 rotates through the rotating shaft installed in the bearing seat 55, thereby realizing the avoidance function;

[0030] See Figure 5 , the avoidance frame 6 includes a groove plate 61 with a U-shaped structure. A connecting plate 62 is arranged on the back of the groove plate 61 and is hinged to the rotating shaft. A guide sleeve 63 is arranged in the groove of the groove plate 61; There is one upper and one lower connecting plate, which are respectively connected to the upper and lower ends of the rotating shaft, so as to rotate through the rotating shaft and realize the avoidance function.

[0031] See Figure 3 , the avoidance assembly 7 includes a bolt 71, a spring seat 72, a spring 73, a chain 74, an adjusting bolt 75 and an adjusting nut 76. The spring 73 is located in the spring guide sleeve 53. The spring seat 72 is located at one end of the spring 73. One end of the chain 74 passes through the spring 73 and is fixedly connected to the spring seat 72, and the spring guide sleeve 53 is sealed by the bolt 71. The adjusting nut 76 is located in the guide sleeve 63 and is fixedly connected to the other end of the chain 74. The adjusting bolt 75 enters from the other end of the guide sleeve 63 and is threadedly connected to the adjusting nut 76. The chain 74 is wound around the outside of the bearing seat 55. When the mowing disc 8 encounters an obstacle along the way, the mowing disc rotates around the rotating shaft through the avoidance frame 6 to avoid the obstacle. At this time, the spring 73 is compressed under the action of the spring seat 72, the chain 74, the adjusting bolt 75, the adjusting nut 76, the guide sleeve 63 and the outer circle of the bearing seat 55. After passing over the obstacle, the spring 73 automatically drives the mowing disc to reset and work; The tightness of the spring 73 can be adjusted by the adjusting bolt 75 and the adjusting nut 76, thereby improving the practicability.

[0032] In this embodiment, the side shifting mechanism 4 includes a side shifting rod 41 with a telescopic structure and a side shifting oil cylinder 42. The end of the piston rod of the side shifting oil cylinder 42 is fixedly connected to the connecting seat 5, and the connecting seat 5 is fixedly connected to the side shifting rod 41. After the side shifting oil cylinder 42 is started, the piston rod extends, pushing the connecting seat 5 to move along the side shifting rod 41, thereby increasing the working range of the mowing disc 8 and realizing operation at a relatively long distance.

[0033] See Figure 6, the mowing disc 8 includes a swing arm 81. One end of the swing arm 81 is hinged to the avoidance frame 6, and the other end is connected to a motor mounting seat 82. An intermediate adjusting rod 83 is also hingedly arranged between the motor mounting seat 82 and the avoidance frame 6. A left adjusting rod 84 and a right adjusting rod (not shown in the figure) are respectively arranged on the left and right sides of the intermediate adjusting rod 83. A floating spring 85 is sleeved on the right adjusting rod. A hydraulic motor 86 is arranged on the motor mounting seat 82. A mowing knife 87 is arranged on the output shaft of the hydraulic motor 86. The pressure oil output by the tractor hydraulically drives the hydraulic motor 86 to drive the mowing knife 87 to rotate, thereby realizing the mowing function.

[0034] In this embodiment, a cutter disc clamping plate 88 is further arranged below the motor mounting seat 82, and a cutter disc 89 is arranged inside the cutter disc clamping plate 88. The cutter disc 89 is fixedly installed below the motor mounting seat 82 through the cutter disc clamping plate 88 and protects the mowing knife 87.

[0035] In this embodiment, a profiling plate 810 is arranged at the end of the output shaft of the hydraulic motor 86. The profiling plate 810 facilitates movement when contacting the ground during mowing.

[0036] As described above, it is only used to illustrate the technical solution of the present invention rather than to limit it. Any other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solution of the present invention, as long as they do not depart from the spirit and scope of the technical solution of the present invention, shall be covered by the scope of the claims of the present invention.

Claims

1. A compression spring side-shift avoidance lawn mower, comprising a frame, support wheels are arranged on both sides of the frame, and a suspension frame is arranged on the front top, characterized in that: A side shift mechanism is arranged on the rear front of the frame, a connecting seat is arranged on the side shift mechanism, a avoidance frame is hingedly arranged on the connecting seat, a avoidance component is arranged between one end of the avoidance frame and the connecting seat, and a mowing disc is arranged on the other end of the avoidance frame; The connecting seat comprises a bottom plate, and side plates are respectively arranged on the upper, lower, left and right sides of the bottom plate of the connecting seat, one end of the side plate is connected to the side shift mechanism, and a compression spring guide sleeve, a support plate and a bearing seat are respectively arranged between the other ends thereof, the compression spring guide sleeve is arranged through the support plate, and a rotating shaft is arranged in the bearing seat and is hinged to the avoidance frame; The avoidance frame comprises a U-shaped slot plate, a connecting plate is provided on the back of the slot plate and is hinged to the rotary shaft, and a guide sleeve is provided in the slot of the slot plate; The avoidance assembly includes a bolt, a compression spring seat, a compression spring, a chain, an adjusting bolt and an adjusting screw sleeve. The compression spring is located in a compression spring guide sleeve. The compression spring seat is located at one end of the compression spring. One end of the chain passes through the compression spring and is fixedly connected to the compression spring seat, and the compression spring guide sleeve is sealed by the bolt. The adjusting screw sleeve is located in the guide sleeve and is fixedly connected to the other end of the chain. The adjusting bolt enters from the other end of the guide sleeve and is threadedly connected to the adjusting screw sleeve. The chain is wrapped around the outside of the bearing seat.

2. A compression spring side-shift avoidance lawn mower according to claim 1, characterized in that: The side shift mechanism comprises a side shift rod of a telescopic structure and a side shift oil cylinder. The piston rod end of the side shift oil cylinder is fixedly connected to a connecting seat, and the connecting seat is fixedly connected to the side shift rod.

3. The compression spring side-shift avoidance lawn mower according to claim 1, characterized in that: The mowing disc includes a swing arm, one end of which is hinged to the avoidance frame, and the other end of which is connected to the motor mounting seat. An intermediate adjustment rod is also hingedly arranged between the motor mounting seat and the avoidance frame. A left adjustment rod and a right adjustment rod are respectively arranged on the left and right sides of the intermediate adjustment rod, and a floating spring is sleeved on the right adjustment rod. A hydraulic motor is arranged on the motor mounting seat, and a mowing blade is arranged on the output shaft of the hydraulic motor.

4. The compression spring side-shift avoidance lawn mower according to claim 3, characterized in that: A cutter disc clamping plate is also arranged below the motor mounting seat, and a cutter disc is arranged inside the cutter disc clamping plate.

5. The compression spring side-shift avoidance lawn mower according to claim 3, characterized in that: A contour plate is arranged at the end of the output shaft of the hydraulic motor.

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