Self-propelled mowing and flattening machine

Abstract

The utility model provides a self-propelled mowing and flattening machine, which belongs to the technical field of agricultural and animal husbandry machinery equipment, and comprises a frame assembly and a rear axle assembly arranged at the rear end of the frame assembly, the rear axle assembly comprises a main beam welding piece and a vertical pull rod, one end of the vertical pull rod is hinged with the middle part of the main beam welding piece, and the other end of the vertical pull rod is hinged with the middle part of the main beam welding piece. The other end of the spiral spring penetrates through the frame assembly and is limited through the spring pressing plate matched with the vertical pull rod, and the spiral spring is arranged on the vertical pull rod in a sleeving mode and located below the frame assembly; the two second shock absorbers are arranged at the two ends of the vertical pull rod respectively, one ends of the second shock absorbers are hinged to the main beam welding piece, and the other ends are connected with the frame assembly; axle parts are symmetrically arranged at the two ends of the main beam welding part, and rear wheels and friction dampers used for limiting random swinging of the rear wheels are arranged at the ends of the axle parts. The rear axle assembly comprises a spiral spring and a second shock absorber, impact on a rear axle is reduced, rear wheels are provided with friction dampers, random swinging of the whole machine along with the terrain is reduced, and driving safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural and animal husbandry machinery and equipment, in particular to a self-propelled grass mowing and flattening machine. Background Art

[0002] As an agricultural and animal husbandry machinery, the mower and flattener is mainly used for forage harvesting, and can also be used for harvesting crops such as reeds and mugwort. Its working principle is: the material to be harvested is cut by a rotating cutter, and the stems are conveyed to the flattening system through auxiliary rollers for flattening. After flattening, the stems are thrown into the forage collector to form a material strip with a certain width, which is convenient for the subsequent baler operation.

[0003] Current mower conditioners have the following disadvantages:

[0004] (1) The mower and conditioner has good terrain adaptation and ground tracking functions, but for a mower and conditioner with front wheel steering and rear wheel following, if the rear wheel swings randomly with the terrain, it may deviate, which is not safe for long-term driving;

[0005] (2) The traditional cab is connected to the frame assembly using a fixed suspension, that is, all four suspensions use rubber shock-absorbing pads as support and seismic isolation components. Rubber shock-absorbing pads have a simple structure and low cost, but they have high rigidity, small deformation, and poor vibration attenuation. Therefore, the suspension using rubber shock-absorbing pads has high rigidity and poor seismic isolation effect. Utility Model Content

[0006] In order to solve the deficiencies in the prior art, the utility model provides a self-propelled lawn mower and flattener. The rear axle assembly of the lawn mower and flattener includes a coil spring and a second shock absorber, which reduces the impact on the rear axle; the rear wheels are equipped with friction dampers to limit the rear wheels from swinging randomly with the terrain, thereby improving driving safety.

[0007] In order to achieve the above purpose, the specific scheme adopted by the utility model is:

[0008] A self-propelled grass cutting and flattening machine comprises a frame assembly, a cutting platform flattening assembly arranged in front of the frame assembly, a driving system arranged on the left and right sides of the front section of the frame assembly, an electrical control assembly arranged on the outside of the front end of the frame assembly, a battery assembly arranged on the left and right sides of the front section of the upper surface of the frame assembly, a transmission system assembly arranged in the frame assembly, a post-processing assembly arranged on the outside of the rear section of the frame assembly, a heat dissipation assembly arranged at the rear end of the upper surface of the frame assembly, a rear axle assembly arranged at the rear end of the frame assembly, a cover arranged above the frame assembly, an air intake assembly arranged on the right side of the cover, a cab assembly arranged at the front end of the upper surface of the frame assembly, a fuel system arranged at the rear end of the cab assembly, and a hydraulic system assembly;

[0009] The rear axle assembly includes a rear wheel, a friction damper, an axle, a connecting rod, a main beam welded part, a transverse tie rod, a coil spring, a vertical tie rod, a spring pressure plate, and a second shock absorber. The second shock absorber, the connecting rod, the axle, and the rear wheel are each provided with two. One end of the vertical tie rod is hinged to the middle of the main beam welded part, and the other end passes through the frame assembly and is limited by a spring pressure plate matched with the vertical tie rod, so as to limit the downward position of the rear axle assembly. The coil spring is sleeved on the vertical tie rod and is located below the frame assembly; the two second shock absorbers are respectively provided at the two ends of the vertical tie rod, one of which is One end of the lateral pull rod is connected to the middle part of the main beam welded part, and the other end is connected to the frame assembly, so as to limit the left and right movement of the rear axle assembly; two axle parts are coaxially symmetrically arranged at both ends of the main beam welded part, and a friction damper and a rear wheel are arranged at one end of the axle part away from the main beam welded part, and the friction damper can limit the arbitrary swing of the rear wheel.

[0010] Furthermore, the axle component includes an axle, a bushing and a rotating shaft. The axle is coaxially arranged with the main beam welded component, one end of the axle is connected to the main beam welded component, and the other end is connected to the bushing; the rotating shaft is a three-bend rod with two inflection points, the upper bend section of the rotating shaft is passed through the bushing, the top of the rotating shaft and the bushing is connected to the friction damper, and the lower bend section of the rotating shaft is connected to the rear wheel.

[0011] Further, the friction damper includes a mounting plate connected to the shaft sleeve through a first fastener, and a brake disc arranged above the mounting plate, and friction rings and pressure plates are sequentially arranged on both sides of the brake disc from near to far, the friction rings and the pressure plates are annular structures with the same inner diameter, and the outer diameter of the pressure plate is larger than the outer diameter of the friction ring; at least one arc groove with an opening away from the center is arranged on the edges of the two pressure plates, and at least one second fastener is vertically arranged on the mounting plate, and a limit sleeve is sleeved on the bolt of the second fastener, and the limit sleeve is at least partially located in the arc groove; baffles are arranged on both sides of the brake disc, and the baffles are arranged in a space surrounded by the inner holes of the friction ring and the pressure plate, and the baffles and the brake disc are connected to the top of the rotating shaft through at least one third fastener, and the steering of the rear wheel can drive the rotating shaft to rotate, thereby driving the brake disc to rotate relative to the friction ring; fourth fasteners are arranged on the edges of the two pressure plates, and a compression spring is sleeved on the bolt of the fourth fastener, so that the pressure plate located below is the lower pressure plate, and the compression spring is arranged below the lower pressure plate, and the resistance of the brake disc during rotation can be adjusted by adjusting the compression amount of the compression spring.

[0012] Furthermore, the cab assembly includes a cab and a four-point suspension mechanism, and the cab is connected to the frame assembly through the four-point suspension mechanism.

[0013] Furthermore, the four-point suspension mechanism includes two sub-frames arranged opposite to each other, and both sub-frames are provided with front suspension spring shock absorbers, longitudinal tie rods, and rear suspension spring shock absorbers, one end of the front suspension spring shock absorber is connected to the front end of the corresponding side sub-frame, and the other end is connected to the front part of the cab; one end of the longitudinal tie rod is connected to the top surface of the corresponding side sub-frame, and the other end is connected to the front part of the cab; one end of the rear suspension spring shock absorber is connected to the middle and rear part of the corresponding side sub-frame, and the other end is connected to the rear part of the cab; a transverse tie rod is also provided on the inner side of any sub-frame, and the end of the transverse tie rod away from the sub-frame is connected to the middle part of the cab.

[0014] Furthermore, the lower end of the header flattening assembly is hinged to the lifting structure at the front end of the frame assembly, and the upper end is connected to the frame assembly through a hydraulic cylinder.

[0015] Furthermore, the transmission system assembly includes an engine, a generator, a gearbox and a plunger pump. The output end of the engine is transmission-connected to the generator, the gearbox is transmission-connected to the output end of the generator and the input end of the plunger pump respectively, the plunger pump provides power to the drive system through the hydraulic system assembly, and the generator is connected to the battery assembly.

[0016] Furthermore, the transmission system assembly also includes an engine bracket for supporting the engine, a gear box bracket for supporting the gear box, and at least one first shock absorber, and the engine bracket and the gear box bracket are both connected to the frame assembly through the first shock absorber.

[0017] Beneficial effects:

[0018] (1) The rear axle assembly of the utility model adopts a mechanical suspension structure, in which the coil spring and the second shock absorber serve as the shock-absorbing and buffering components of the rear axle assembly, converting the impact of the ground on the whole vehicle into a flexible buffer, thereby reducing the impact of the whole vehicle. In addition, the rear wheel is equipped with a friction damper, which can limit the rear wheel from swinging randomly with the terrain, thereby improving driving safety.

[0019] (2) The utility model improves the four-point suspension mechanism and adopts a suspension spring shock absorber as a buffer and vibration reduction component of the cab, which can effectively absorb random vibrations from the road surface, limit the amplitude, and avoid resonance, thereby improving the driver's riding comfort and reducing the dynamic load of the cab suspension point. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front view of the self-propelled grass mower and flattener in the utility model.

[0021] Figure 2 It is a structural schematic diagram of the transmission system assembly.

[0022] Figure 3It is a structural schematic diagram of the rear axle assembly.

[0023] Figure 4 Schematic diagram of the friction damper.

[0024] Figure 5 A partial cross-sectional view of the friction damper.

[0025] Figure 6 It is a structural schematic diagram of the cab assembly.

[0026] Figure 7 It is a structural schematic diagram of the four-point suspension mechanism.

[0027] Graphic markings: 1. Header flattening assembly, 2. Drive system, 3. Electrical control assembly, 4. Battery assembly, 5. Transmission assembly, 501. Engine, 502. Engine bracket, 503. Generator, 504. Gearbox, 505. First shock absorber, 506. Gearbox bracket, 507. Piston pump, 6. Post-processing assembly, 7. Heat dissipation assembly, 8. Rear axle assembly, 801. Rear wheel, 802. Friction damper, 80201. Compression spring, 80202. First fastener, 80203. Mounting plate, 80204. Second fastener, 80205. Limit sleeve, 80206. Lower pressure plate, 80207. Upper pressure plate, 80208. Partition, 80209. Third fastener, 80210. Fourth fastener, 8021 1. Lower friction ring, 80212. Brake disc, 80213. Upper friction ring, 803. Axle, 80301. Axle, 80302. Bushing, 80303. Rotating shaft, 804. Connecting rod, 805. Main beam welded parts, 806. Transverse tie rod, 807. Coil spring, 808. Vertical tie rod, 809. Spring pressure plate, 810. Second shock absorber, 9. Frame assembly, 10. Cover, 11. Intake assembly, 12. Fuel system, 13. Cab assembly, 1301. Cab, 1302. Four-point suspension mechanism, 13021. Front suspension spring shock absorber, 13022. Longitudinal tie rod, 13023. Rear suspension spring shock absorber, 13024. Subframe, 13025. Transverse tie rod, 14. Hydraulic system assembly. DETAILED DESCRIPTION

[0028] The technical solution of the utility model will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of the utility model.

[0029] In the description of the present invention, it is necessary to understand that the terms "upper" and "lower" etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention.

[0030] It should be noted that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0031] The utility model discloses a self-propelled grass mowing and flattening machine. Figure 1 The mower and flattening machine includes a cutting table flattening assembly 1, a drive system 2, an electrical control assembly 3, a battery assembly 4, a transmission system assembly 5, a post-processing assembly 6, a heat dissipation assembly 7, a rear axle assembly 8, a frame assembly 9, a cover 10, an air intake assembly 11, a fuel system 12, a cab assembly 13, and a hydraulic system assembly 14. The cutting table flattening assembly 1 is located at the front end of the frame assembly 9, and the lower end of the cutting table flattening assembly 1 is connected to the lifting structure at the front end of the frame assembly 9 by a rotating pin shaft, which can be adjusted up and down. The upper end of the cutting table flattening assembly 1 is connected to the frame assembly 9 by a hydraulic cylinder, so that the cutting table flattening assembly 1 can be tilted forward and backward. The drive system 2 is located on the left and right sides of the front section of the frame assembly 9 and is fixed by fasteners. The electrical control assembly 3 is located on the outer side of the front end of the frame assembly 9 and is fixed by fasteners. The battery assembly 4 is located on the left and right sides of the front section of the upper surface of the frame assembly 9 and is connected and fixed by fasteners. The transmission assembly 5 is located inside the center of the frame assembly 9 and is connected with fasteners. The after-treatment assembly 6 is located on the left rear outer side of the frame assembly 9 and is connected and fixed with fasteners. The heat dissipation assembly 7 is located at the rear end of the upper surface of the frame assembly 9 and is connected and fixed with fasteners. The rear axle assembly 8 is located at the rear end of the frame assembly 9 and is connected with fasteners. The cover 10 is located on the frame assembly 9. The air intake assembly 11 is located on the right side of the cover 10 and is connected with fasteners. The cab assembly 13 is located at the front end of the upper surface of the frame assembly 9 and is connected and fixed with fasteners. The fuel system 12 is located at the rear end of the cab assembly 13 and is connected with fasteners.

[0032] The driving system 2 is mounted on the vehicle frame assembly 9. The driving system 2 in the utility model can adopt the vehicle wheel side driving integrated device in the utility model patent with publication number CN206309881U.

[0033] Please refer to Figure 2 The transmission system assembly 5 includes an engine 501 , an engine bracket 502 , a generator 503 , a gear box 504 , a first shock absorber 505 , a gear box bracket 506 and a plunger pump 507 . The engine 501 provides power to the generator 503, and the electricity generated by the generator 503 is provided to the battery assembly 4. The gearbox 504 is respectively connected to the output end of the generator 503 and the input end of the plunger pump 507. An inner hole is provided on the end face of the output end of the gearbox 504, and a spline groove is provided on the inner circumference of the inner hole. The shaft head of the input end of the plunger pump 507 is a spline shaft head. The gearbox 504 and the plunger pump 507 can be connected to each other through the cooperation of the spline shaft head and the spline groove. The plunger pump 507 provides power to the drive system 2 through the hydraulic system assembly 14; the engine bracket 502 is connected to the engine 501 with fasteners, and the first shock absorber 505 is connected to the frame assembly 9 with fasteners after being installed in the engine bracket 502; the gearbox bracket 506 is connected to the gearbox 504 with fasteners, and the first shock absorber 505 is connected to the frame assembly 9 with fasteners after being installed in the gearbox bracket 506.

[0034] Please refer to Figure 3-Figure 5 The rear axle assembly 8 includes a rear wheel 801, a friction damper 802, an axle member 803, a connecting rod 804, a main beam welded member 805, a transverse tie rod 806, a coil spring 807, a vertical tie rod 808, a spring pressure plate 809, and a second shock absorber 810. The rear wheel 801 is connected to the axle member 803 by a fastener; the two axle members 803 are axially connected to the two ends of the main beam welded member 805 by fasteners; the friction damper 802 is connected to the axle member 803 on the corresponding side by a fastener to control the swing torque of the frame assembly 9; one end of the two connecting rods 804 is connected to the main beam welded member 805 by a fastener, and the other end is connected to the frame assembly 9 by a fastener to limit the front and rear swing of the rear axle assembly 8; One end of the pull rod 806 is connected to the main beam welded part 805 by a fastener, and the other end is connected to the frame assembly 9 by a fastener, which is used to limit the left and right movement of the rear axle assembly 8; one end of the vertical pull rod 808 is hinged to the main beam welded part 805, and after the coil spring 807 is inserted, it is inserted into the frame assembly 9, and then the spring pressure plate 809 is installed. The spring pressure plate 809 is connected to the upper part of the vertical pull rod 808 by a fastener to limit the downward position of the rear axle assembly 8. It should be noted that the main beam welded part 805 is a hollow tubular structure as a whole.

[0035] Specifically, the axle member 803 includes an axle 80301, a sleeve 80302 and a rotating shaft 80303. The axle 80301 is coaxially arranged with the main beam weldment 805. One end of the axle 80301 is connected to the main beam weldment 805, and the other end is connected to the sleeve 80302. The rotating shaft 80303 is a three-bend rod with two inflection points. The upper bending section of the rotating shaft 80303 is inserted into the sleeve 80302. The top of the rotating shaft 80303 and the sleeve 80302 are connected to the friction damper 802, and the lower bending section of the rotating shaft 80303 is connected to the rear wheel 801.

[0036] Please refer to Figure 4-Figure 5 The friction damper 802 includes a mounting plate 80203 connected to a shaft sleeve 80302 through a first fastener 80202, and a brake disc 80212 arranged above the mounting plate 80203, friction rings and pressure plates are arranged on both sides of the brake disc 80212, the friction rings and pressure plates are both annular structures, the inner diameters of the two are consistent, and the outer diameter of the pressure plate is larger than the outer diameter of the friction ring; wherein, the upper pressure plate is an upper pressure plate 80207, the lower pressure plate is a lower pressure plate 80206, the friction ring between the upper pressure plate 80207 and the brake disc 80212 is an upper friction ring 80213, and the friction ring between the lower pressure plate 80206 and the brake disc 80212 is a lower friction ring 80211. The edges of the upper pressing plate 80207 and the lower pressing plate 80206 are provided with at least one arc-shaped groove with an opening away from the center. At least one second fastener 80204 is vertically provided on the mounting plate 80203. A limit sleeve 80205 is sleeved on the bolt of the second fastener 80204. The limit sleeve 80205 is at least partially located in the arc-shaped groove to limit the two pressing plates from rotating at will. Both sides of the brake disc 80212 are provided with partitions 80208. The upper partition 80208 is provided in the space surrounded by the upper friction ring 80213 and the inner hole of the upper pressing plate 80207, and the lower partition 80208 is provided in the space surrounded by the lower friction ring 80211 and the inner hole of the lower pressing plate 80206. The partition plate 80208 and the brake disc 80212 are connected to the top of the rotating shaft 80303 through at least one third fastener 80209. When the rear wheel 801 turns with the steering, the turning of the rear wheel 801 can drive the rotating shaft 80303 to rotate, thereby driving the brake disc 80212 to rotate relative to the two friction rings. The edges of the two pressure plates are vertically provided with fourth fasteners 80210, and the bolts of the fourth fasteners 80210 are sleeved with compression springs 80201. The compression springs 80201 are arranged below the lower pressure plate 80206. By adjusting the compression of the compression springs 80201, the resistance of the brake disc 80212 during rotation can be adjusted. It should be noted that the first fastener 80202, the second fastener 80204, the third fastener 80209 and the fourth fastener 80210 all adopt a bolt and nut structure.

[0037] Please refer to Figure 6 The cab assembly 13 includes a cab 1301 and a four-point suspension mechanism 1302 , and the cab 1301 is connected to the frame assembly 9 via the four-point suspension mechanism 1302 .

[0038] Please refer to Figure 7 The four-point suspension mechanism 1302 includes two oppositely arranged sub-frames 13024, two front suspension spring shock absorbers 13021, two longitudinal tie rods 13022, two rear suspension spring shock absorbers 13023, and transverse tie rods 13025. One end of the front suspension spring shock absorber 13021 and the rear suspension spring shock absorber 13023 is hinged to the sub-frame 13024 on the corresponding side, and the other end is hinged to the four corners of the cab 1301, mainly used to support the cab 1301 and play a shock absorbing role. One end of the longitudinal tie rod 13022 is hinged to the sub-frame 13024 on the corresponding side, and the other end is hinged to the front of the cab 1301, mainly controlling the forward and backward swing amplitude of the cab 1301. One end of the lateral tie rod 13025 is hinged to any auxiliary frame 13024, and the other end is hinged to the middle of the cab 1301, mainly controlling the left and right swing amplitude of the cab 1301. It should be noted that the front suspension spring shock absorber 13021 and the rear suspension spring shock absorber 13023 can adopt the structure of the first shock absorber in the patent with publication number CN217048830U, and the longitudinal tie rod 13022 has the same structure as the lateral tie rod 13025, both of which include a tie rod and a rod head located at both ends of the tie rod, and one of the rod heads is hinged to the auxiliary frame 13024.

[0039] In the mower and flattener of the utility model, the rear axle assembly 8 reduces the impact on the rear axle by arranging a coil spring 807 and a second shock absorber 810, and the rear wheel 801 is equipped with a friction damper 802 to limit the rear wheel 801 from swinging randomly with the terrain, thereby improving driving safety; the cab 1301 adopts a four-point suspension mechanism 1302 to improve driving comfort.

[0040] The parts of the present invention not described in detail belong to the prior art.

Claims

1. A self-propelled grass mower and flattener, characterized in that: The vehicle comprises a frame assembly (9), a header flattening assembly (1) arranged in front of the frame assembly (9), a driving system (2) arranged on the left and right sides of the front section of the frame assembly (9), an electrical control assembly (3) arranged on the outside of the front end of the frame assembly (9), a battery assembly (4) arranged on the left and right sides of the front section of the upper surface of the frame assembly (9), a transmission system assembly (5) arranged in the frame assembly (9), a post-processing assembly (6) arranged on the outside of the rear section of the frame assembly (9), a heat dissipation assembly (7) arranged at the rear end of the upper surface of the frame assembly (9), a rear axle assembly (8) arranged at the rear end of the frame assembly (9), a cover (10) arranged above the frame assembly (9), an air intake assembly (11) arranged on the right side of the cover (10), a cab assembly (13) arranged at the front end of the upper surface of the frame assembly (9), a fuel system (12) arranged at the rear end of the cab assembly (13), and a hydraulic system assembly (14); The rear axle assembly (8) comprises a rear wheel (801), a friction damper (802), an axle member (803), a connecting rod (804), a main beam weldment (805), a transverse tie rod (806), a coil spring (807), a vertical tie rod (808), a spring pressure plate (809), and a second shock absorber (810), wherein the second shock absorber (810), the connecting rod (804), the axle member (803), the rear wheel (801) and the second shock absorber (810) are all Two vertical pull rods (808) are provided, one end of which is hinged to the middle of the main beam welded part (805), and the other end of which passes through the frame assembly (9) and is limited by a spring pressure plate (809) matched with the vertical pull rod (808) to limit the downward position of the rear axle assembly (8). The coil spring (807) is sleeved on the vertical pull rod (808) and is located below the frame assembly (9); two second shock absorbers (810) are respectively provided at the vertical pull rods (808) and the ... The two ends of the tie rod (808) are hinged to the main beam welded part (805) at one end and connected to the frame assembly (9) at the other end; two connecting rods (804) are symmetrically arranged on the left and right sections of the main beam welded part (805) with the vertical tie rod (808) as the center, one end of the connecting rod (804) is connected to the main beam welded part (805) and the other end is connected to the frame assembly (9) for limiting the front and rear swing of the rear axle assembly (8); one end of the lateral tie rod (806 ... One end is connected to the middle of the main beam welded component (805), and the other end is connected to the frame assembly (9), and is used to limit the left-right movement of the rear axle assembly (8); two axle components (803) are coaxially symmetrically arranged at both ends of the main beam welded component (805); a friction damper (802) and a rear wheel (801) are arranged at one end of the axle component (803) away from the main beam welded component (805); the friction damper (802) can limit the random swing of the rear wheel (801).

2. A self-propelled grass mower and conditioner according to claim 1, characterized in that: The axle component (803) comprises an axle (80301), a shaft sleeve (80302) and a rotating shaft (80303); the axle (80301) is coaxially arranged with the main beam welded component (805); one end of the axle (80301) is connected to the main beam welded component (805), and the other end is connected to the shaft sleeve (80302); the rotating shaft (80303) is a three-bend rod with two inflection points; the upper bend section of the rotating shaft (80303) is inserted into the shaft sleeve (80302); the tops of the rotating shaft (80303) and the shaft sleeve (80302) are connected to the friction damper (802); and the lower bend section of the rotating shaft (80303) is connected to the rear wheel (801).

3. A self-propelled grass mower and conditioner according to claim 2, characterized in that: The friction damper (802) comprises a mounting plate (80203) connected to a shaft sleeve (80302) via a first fastener (80202), and a brake disc (80212) arranged above the mounting plate (80203), friction rings and pressure plates are arranged on both sides of the brake disc (80212) in sequence from near to far, the friction rings and the pressure plates are annular structures with the same inner diameter, and the outer diameter of the pressure plate is larger than the outer diameter of the friction ring; at least one arc-shaped groove with an opening away from the center is arranged at the edges of the two pressure plates, at least one second fastener (80204) is vertically arranged on the mounting plate (80203), a limit sleeve (80205) is sleeved on the bolt of the second fastener (80204), and the limit sleeve (80205) is at least partially located in the arc-shaped groove; partition plates (80208) are arranged on both sides of the brake disc (80212), The partition (80208) is arranged in a space surrounded by the inner hole of the friction ring and the pressure plate; the partition (80208) and the brake disc (80212) are connected to the top of the rotating shaft (80303) through at least one third fastener (80209); the rotating shaft (80303) can be driven to rotate by the steering of the rear wheel (801), thereby driving the brake disc (80212) to rotate relative to the friction ring; the edges of the two pressure plates are provided with a fourth fastener (80210); the bolts of the fourth fastener (80210) are sleeved with a compression spring (80201); the pressure plate located below is the lower pressure plate (80206); the compression spring (80201) is arranged below the lower pressure plate (80206); and the resistance of the brake disc (80212) during rotation can be adjusted by adjusting the compression amount of the compression spring (80201).

4. The self-propelled grass mower and conditioner according to claim 1, characterized in that: The cab assembly (13) comprises a cab (1301) and a four-point suspension mechanism (1302), and the cab (1301) is connected to the vehicle frame assembly (9) via the four-point suspension mechanism (1302).

5. The self-propelled grass mower and conditioner according to claim 4, characterized in that: The four-point suspension mechanism (1302) comprises two sub-frames (13024) arranged opposite to each other, and the two sub-frames (13024) are each provided with a front suspension spring shock absorber (13021), a longitudinal pull rod (13022), and a rear suspension spring shock absorber (13023), one end of the front suspension spring shock absorber (13021) is connected to the front end of the corresponding side sub-frame (13024), and the other end is connected to the front part of the cab (1301); one end of the longitudinal pull rod (13022) is connected to the front end of the corresponding side sub-frame (13024), and the other end is connected to the front part of the cab (1301); one end of the longitudinal pull rod (13022) is connected to the front end of the corresponding side sub-frame (13024), and the other end of the longitudinal pull rod (13022) is connected to the front end of the cab (1301); The rear suspension spring shock absorber (13023) is connected to the top surface of the corresponding side auxiliary frame (13024), and the other end is connected to the front of the cab (1301); one end of the rear suspension spring shock absorber (13023) is connected to the middle and rear part of the corresponding side auxiliary frame (13024), and the other end is connected to the rear part of the cab (1301); a transverse tie rod (13025) is also provided on the inner side of any auxiliary frame (13024), and the end of the transverse tie rod (13025) away from the auxiliary frame (13024) is connected to the middle part of the cab (1301).

6. The self-propelled grass mower and conditioner according to claim 1, characterized in that: The lower end of the header flattening assembly (1) is hinged to the lifting structure at the front end of the frame assembly (9), and the upper end is connected to the frame assembly (9) via a hydraulic cylinder.

7. The self-propelled grass mower and conditioner according to claim 1, characterized in that: The transmission system assembly (5) comprises an engine (501), a generator (503), a gear box (504) and a plunger pump (507); the output end of the engine (501) is transmission-connected to the generator (503); the gear box (504) is transmission-connected to the output end of the generator (503) and the input end of the plunger pump (507); the plunger pump (507) provides power to the drive system (2) through the hydraulic system assembly (14); and the generator (503) is connected to the battery assembly (4).

8. The self-propelled grass mower and conditioner according to claim 7, characterized in that: The transmission system assembly (5) further comprises an engine bracket (502) for supporting the engine (501), a gear box bracket (506) for supporting the gear box (504), and at least one first shock absorber (505); the engine bracket (502) and the gear box bracket (506) are both connected to the vehicle frame assembly (9) via the first shock absorber (505).

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