Header of disc mower

Abstract

A transmission speed increasing device and a plurality of mowing discs are arranged on a machine frame, the machine frame comprises a chassis and a bearing plate, a cross beam is arranged on one side of the machine frame, a containing cavity is formed between the chassis and the bearing plate, one connecting plate is fixed on the bearing plate, the other connecting plate is fixed on the cross beam, and the cross beam is fixed on the chassis. The structure of the whole header is changed, the cross beam is additionally arranged on one side of the machine frame, the strength of the connecting end of the header and a tractor is enhanced, the influence of rotating torque caused by the weight of the far end is reduced, the overall service life is prolonged, the good cutting height of the cutting blade at the near end is kept through the balance weight of the cross beam, and abrasion is reduced; wherein one connecting plate is fixed on the cross beam, the cross beam bears half of the acting force and the torque, the pressure of the upper machine frame part of the header is reduced, the transmission speed increasing device is arranged, the input rotating speed of a tractor is amplified by multiple times, the cutting speed of the whole cutting blade is increased, and more sufficient cutting can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of mowing, in particular to a cutting platform of a disc mower. Background Art

[0002] A lawn mower is a special machine for mowing grass. It is mainly used for wasteland repair, lawn repair and forage harvesting. Among the current forage harvesting lawn mowers, disc mowers are very common. They are mainly driven by a power source to rotate the cutter disc to achieve the mowing work.

[0003] The cutting table of the existing lawn mower is rectangular as a whole. In the actual working process, when the entire tractor drives the entire cutting table, its thrust mainly acts on the end close to the tractor, and the thrust tilts the entire cutting table forward. There is a torque between the far end of the cutting table and the end where the cutting table is connected to the tractor. Under high-intensity working conditions or after long-term use, its structure is prone to deformation, resulting in bending and twisting. After reaching the limit, it is easy to be damaged during the working process, and the overall service life is short. In addition, the thrust of the tractor and the support frame tilts the entire cutting table forward. After partially bending, the front end of the cutting blade will contact the lower ground, and the wear is aggravated. Utility Model Content

[0004] In order to solve at least one technical problem existing in the background technology, the utility model proposes a disc mower cutting table, which improves the overall strength by changing the structure of the entire cutting table, and at the same time utilizes the counterweight of the crossbeam to enable the cutting blade to maintain a good cutting height and reduce wear.

[0005] A disc mower cutting table, comprising

[0006] A frame, wherein a transmission speed increasing device and a plurality of mowing discs are arranged on the frame, the frame comprises a chassis and a bearing plate, a crossbeam is arranged on one side of the frame, a receiving cavity is formed between the chassis and the bearing plate, a pair of connecting plates are arranged on the frame, one connecting plate is fixed on the bearing plate, and the other connecting plate is fixed on the crossbeam, and the transmission speed increasing device is arranged between the two connecting plates;

[0007] Each of the mowing discs comprises an input transmission gear, a blade transmission gear and an output transmission gear which are meshed in sequence, and a mowing device is connected to the blade transmission gear;

[0008] Between two adjacent mowing discs, an output transmission gear of one mowing disc is meshed and driven with an input transmission gear of the other mowing disc.

[0009] Preferably, the crossbeam includes a reinforcing plate and an extension plate, the width of the reinforcing plate gradually decreases until it is equal to that of the extension plate, and the width of one end of the reinforcing plate close to the transmission speed increasing device is equal to the width of the chassis.

[0010] Preferably, the width of the extension plate is 1 / 3-1 / 2 of the width of the reinforcement plate.

[0011] Preferably, the cross beam and the bearing plate are connected by a plurality of screws.

[0012] Preferably, the transmission speed increasing device comprises an input shaft, an accelerator and an output shaft, and the accelerator comprises an input gearwheel arranged on the input shaft, and an output gearwheel arranged on the output shaft.

[0013] Preferably, a bracket connecting plate is provided on one end of the frame away from the transmission speed increasing device.

[0014] Preferably, the grass cutting device comprises a rotary connecting shaft, a rotary seat and a cutter disc.

[0015] Preferably, the lower end of the rotating connecting shaft is coaxially rotatably engaged with the blade transmission gear, the upper end of the rotating connecting shaft is fixedly connected to the rotating seat, and cutting blades are provided at both ends of the cutter disc.

[0016] Preferably, the rotating seat and the cutter disc are detachably connected, and protective covers are provided on the cutter discs at both ends of the frame.

[0017] Preferably, support bearings are provided at both the upper and lower ends of the rotary connection shaft.

[0018] The beneficial effects brought by the utility model are:

[0019] 1. By changing the structure of the entire header, adding a crossbeam on one side of the frame, strengthening the strength of the header and tractor connection end, reducing the impact of the rotational torque caused by the remote weight, and improving the overall service life;

[0020] 2. At the same time, the counterweight of the crossbeam is used to keep the cutting blade at the proximal end at a good cutting height and reduce wear;

[0021] 3. One of the connecting plates is fixed on the crossbeam, which can bear half of the force and torque, reducing the pressure on the frame part of the cutting table;

[0022] 4. The utility model is provided with a transmission speed increasing device, which amplifies the input rotation speed of the tractor many times, thereby increasing the cutting speed of the entire cutting blade and ensuring more sufficient cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings constituting a part of the present invention are used to provide a further understanding of the present invention, so that other features, purposes and characteristics of the present invention become more obvious. The drawings and descriptions of the exemplary embodiments of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0024] Figure 1 The utility model provides a disc mower cutting table overall structure diagram.

[0025] Figure 2 A bottom view of a cutting table of a disc mower provided in one embodiment of the utility model.

[0026] Figure 3 A schematic diagram of the internal structure of a transmission speed increasing device provided in one embodiment of the utility model.

[0027] Figure 4 A schematic diagram of the structural principle of a mowing disc provided in one embodiment of the utility model.

[0028] Figure 5 A partial structural schematic diagram of a lawn mowing device provided in one embodiment of the utility model.

[0029] Figure 6 A partial cross-sectional structural schematic diagram of a lawn mowing device provided in one embodiment of the utility model.

[0030] Figure 7 A schematic structural diagram of a cutter disc provided in one embodiment of the utility model.

[0031] In the figure: frame 1, chassis 11, bearing plate 12, connecting plate 13, accommodating chamber 100, transmission speed increasing device 2, input shaft 21, accelerator 22, output shaft 23, input large gear 221, output large gear 222, mowing disc 3, input transmission gear 31, blade transmission gear 32, output transmission gear 33, mowing device 34, crossbeam 4, reinforcement plate 41, extension plate 42, rotating connecting shaft 341, rotating seat 342, knife disc 343, cutting blade 344, bracket connecting plate 5, protective cover 6. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. 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 scope of protection of the utility model.

[0033] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0034] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0035] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] The utility model discloses a cutting platform of a disc mower

[0037] Example 1 Figure 1-7 As shown:

[0038] like Figure 1-2 As shown: a disc mower cutting table, including a frame 1, a transmission speed increasing device 2 and a plurality of mowing discs 3 are arranged on the frame 1, and the mowing discs 3 can be set to 2, 4, 6, 8, etc. according to the needs. In the embodiment of the utility model, there are 6. Each mowing disc 3 is respectively installed on the frame 1 in sequence, and is driven in sequence through the gears at the bottom.

[0039] like Figure 2 As shown: the cross beam 4 includes a reinforcing plate 41 and an extension plate 42, the width of the reinforcing plate 41 at one end close to the transmission speed increasing device 2 is equal to the width of the chassis 11, and then the width of the reinforcing plate 41 gradually decreases until it is equal to the extension plate 42, and the width of the extension plate 42 is 1 / 3-1 / 2 of the reinforcing plate 41. In this example, the width of the extension plate 42 is 1 / 3 of the reinforcing plate 41, and the cross beam 4 and the bearing plate 12 are connected by a number of screws.

[0040] The frame 1 is provided with a pair of connecting plates 13 , wherein one connecting plate 13 is fixed on the bearing plate 12 , and the other connecting plate 13 is fixed on the crossbeam 4 , and the transmission speed increasing device 2 is arranged between the two connecting plates 13 .

[0041] Mainly half of the pressure will act on the reinforcing plate 41, and its ends must maintain a certain strength, mainly by increasing its volume and material, specifically the width.

[0042] The transmission speed increasing device 2 in the utility model is the power source of the entire lawn mower cutting table. Figure 3 As shown, the transmission speed increasing device 2 includes an input shaft 21 , an accelerator 22 and an output shaft 23 , and the accelerator 22 includes an input gear 221 arranged on the input shaft 21 , and an output gear 222 arranged on the output shaft 23 .

[0043] The output shaft of the external tractor is connected to the input shaft 21, and the output shaft 23 is driven by the accelerator 22, that is, the input gear 221 that rotates coaxially with the input shaft 21, and the speed is initially increased by using the difference in the number of teeth between the two. The output gear 222 that is coaxially meshed with the lower part of the output shaft 23 drives the input transmission gear 31 that matches the first gear. The gears and tooth radius of the input gear 221 and the output gear 222 are much larger than the output shaft 23 and the input transmission gear 31. In this way, the speed of the tractor's input shaft of 540-720 rpm can be increased by the accelerator 22, so that the speed of the cutting blade reaches 3000-8000 rpm.

[0044] like Figure 4 As shown: the power of the novel mowing disc 3 of the present invention is transmitted through the gear at the bottom, wherein each mowing disc 3 comprises an input transmission gear 31, a blade transmission gear 32 and an output transmission gear 33 meshed in sequence, and the blade transmission gear 32 is connected to a mowing device 34; between two adjacent mowing discs 3, the output transmission gear 33 of one mowing disc is meshed with the input transmission gear 31 of the other mowing disc for transmission.

[0045] The input transmission gear 31 , the blade transmission gear 32 and the output transmission gear 33 are all located in the accommodating cavity 100 to avoid the impact of weeds, soil and gravel.

[0046] The input transmission gear 31 drives the blade transmission gear 32, and the blade transmission gear 32 drives the rotating connecting shaft 341 and the rotating seat 342. The rotation of the rotating seat 342 causes the cutting blade 344 on the cutter disc 343 to rotate. At the same time, the blade transmission gear 32 transmits power to the output transmission gear 33, and the output transmission gear 33 drives the input transmission gear 31 of the next adjacent mowing disc 3, and transmits in sequence, thereby driving the entire set of multiple mowing devices 34.

[0047] The frame 1 includes a chassis 11 and a bearing plate 12. A crossbeam 4 is provided on one side of the frame. A receiving cavity 100 is formed between the chassis 11 and the bearing plate 12. The receiving cavity 100 is used to place the transmission gear set at the bottom of the mowing disc 3 to reduce damage to the gears caused by external weeds and gravel.

[0048] A support connecting plate 5 is provided on one end of the frame 1 away from the transmission speed increasing device 2. The support connecting plate 5 is located on the same side of the cross beam 4 on the frame 1.

[0049] like Figure 5-7 As shown: the grass cutting device 34 includes a rotating connecting shaft 341, a rotating seat 342 and a knife disc 343.

[0050] The lower end of the rotating connecting shaft 341 is coaxially rotatably engaged with the blade transmission gear 32, the upper end of the rotating connecting shaft 341 is fixedly connected to the rotating seat 342, both ends of the knife disc 343 are provided with cutting blades 344, and the upper and lower ends of the rotating connecting shaft 341 are provided with support bearings 345.

[0051] The rotating seat 342 and the cutter disc 343 are detachably connected, and protective covers 6 are provided on the cutter discs 343 at both ends of the frame 1.

[0052] Working principle: the output shaft of the external tractor is connected to the input shaft 21, and the output shaft 23 is driven by the accelerator 22, that is, the input large gear 221 rotating coaxially with the input shaft 21, and the speed is initially increased by using the difference in the number of teeth between the two. The output large gear 222 coaxially meshing with the lower part of the output shaft 23 drives the input transmission gear 31 matched with the first gear, and the input transmission gear 31 drives the blade transmission gear 32, and the blade transmission gear 32 drives the rotating connecting shaft 341 and the rotating seat 342. The rotating seat 342 rotates to rotate the cutting blade 344 on the cutter disc 343. At the same time, the blade transmission gear 32 transmits power to the output transmission gear 33, and the output transmission gear 33 drives the input transmission gear 31 of the next adjacent mowing disc 3, and transmits in sequence, thereby driving the entire set of multiple mowing devices 34.

[0053] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0054] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model shall be based on the attached claims.

Claims

1. A disc mower cutting table, characterized in that: The invention comprises a frame (1), wherein a transmission speed increasing device (2) and a plurality of mowing discs (3) are arranged on the frame (1), wherein the frame (1) comprises a chassis (11) and a bearing plate (12), wherein a crossbeam (4) is arranged on one side of the frame, wherein a receiving cavity (100) is formed between the chassis (11) and the bearing plate (12), wherein a pair of connecting plates (13) are arranged on the frame (1), wherein one connecting plate (13) is fixed on the bearing plate (12), and the other connecting plate (13) is fixed on the crossbeam (4), and wherein the transmission speed increasing device (2) is arranged between the two connecting plates (13); Each mowing disc (3) comprises an input transmission gear (31), a blade transmission gear (32) and an output transmission gear (33) which are meshed in sequence, and a mowing device (34) is connected to the blade transmission gear (32); Between two adjacent mowing discs (3), an output transmission gear (33) of one mowing disc and an input transmission gear (31) of the other mowing disc are meshed for transmission.

2. A disc mower cutting table according to claim 1, characterized in that: The cross beam (4) comprises a reinforcing plate (41) and an extension plate (42), the width of the reinforcing plate (41) gradually decreases until it is equal to the extension plate (42), and the width of the reinforcing plate (41) at one end close to the transmission speed increasing device (2) is equal to the width of the chassis (11).

3. A disc mower cutting table according to claim 2, characterized in that: The width of the extension plate (42) is 1 / 3-1 / 2 of the width of the reinforcement plate (41).

4. A disc mower cutting table according to claim 3, characterized in that: The cross beam (4) and the bearing plate (12) are connected by a plurality of screws.

5. A disc mower cutting table according to claim 1, characterized in that: The transmission speed increasing device (2) comprises an input shaft (21), an accelerator (22) and an output shaft (23); the accelerator (22) comprises an input gearwheel (221) arranged on the input shaft (21), and an output gearwheel (222) arranged on the output shaft (23).

6. A disc mower cutting table according to claim 1, characterized in that: A bracket connecting plate (5) is provided on one end of the frame (1) away from the transmission speed increasing device (2).

7. A disc mower cutting table according to claim 1, characterized in that: The grass cutting device (34) comprises a rotary connecting shaft (341), a rotary seat (342) and a cutter disc (343).

8. A disc mower cutting table according to claim 7, characterized in that: The lower end of the rotating connecting shaft (341) is coaxially rotatably meshed with the blade transmission gear (32), the upper end of the rotating connecting shaft (341) is fixedly connected to the rotating seat (342), and both ends of the blade disc (343) are provided with cutting blades (344).

9. A disc mower cutting table according to claim 8, characterized in that: The rotating seat (342) and the cutter disc (343) are detachably connected, and protective covers (6) are provided on the cutter discs (343) at both ends of the frame (1).

10. A disc mower cutting table according to claim 8, characterized in that: The upper end and the lower end of the rotary connection shaft (341) are both provided with support bearings (345).

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