Double-disc mower

Abstract

The utility model discloses a double-disc mower, relates to the technical field of mowing equipment, and mainly aims to provide a double-disc mower which is convenient for cutting pasture with more juice. According to the main technical scheme, the double-disc lawn mower comprises a supporting component, a hydraulic component, a connecting frame, a connecting rod, a driving component, a driving component, a driving component and a driving component, wherein one end of the hydraulic component is connected to a base; the transmission component and the belt pulley component are mounted on the base, a first bearing seat is arranged on the connecting frame, one end of the first transmission shaft is connected to the first bearing seat, the other end of the first transmission shaft is connected to the straight gear box component, and a second belt is arranged between the belt pulley component and the first transmission shaft which penetrates through the straight gear box component. Two ends of the second transmission shaft are respectively inserted into the bevel gear box component; one end of the third transmission shaft is inserted into the bevel gear box component; and the center position of the cutting part is connected to the other end of the third transmission shaft. The mowing machine is mainly used for mowing.

Description

Technical Field

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

[0002] As a concentrate feed substitute, the best harvesting time of perennial leguminous forage is very short. The time limit for forage harvesting is strong, and the time left for growers to harvest forage is relatively tight, and multiple harvests need to be completed within a year. At the same time, since most forage grasses use high-nitrogen fertilizers, the forage grasses are more juicy, so the cutting speed of the blade should be relatively increased.

[0003] The existing lawn mowers rotate slowly, and it is difficult to cut the juicy grass. In addition, in order to achieve economic benefits, the cutting position of the grass needs to be variable and the height can be adjusted. However, the cutting position of the existing lawn mowers is high, which makes the cutting position of the grass high, thereby reducing the economic benefits of the grass. Utility Model Content

[0004] In view of this, an embodiment of the utility model provides a double-disc mower, the main purpose of which is to provide a double-disc mower that is convenient for cutting grass with more juice.

[0005] In order to achieve the above purpose, the utility model mainly provides the following technical solutions:

[0006] The utility model provides a double disc lawn mower, comprising:

[0007] A supporting component, the supporting component comprising a base, a connecting frame, a pull-down component and a hydraulic component, one end of the hydraulic component is connected to the base, and the other end is connected to the connecting frame, one end of the pull-down component is connected to the middle of the base, and the other end is connected to the middle of the connecting frame;

[0008] A transmission component, the transmission component comprises a pulley component, a spur gear box component, a bevel gear box component, a first transmission shaft, a second transmission shaft and a third transmission shaft, the pulley component is mounted on the base, a first bearing seat is arranged on the connecting frame, one end of the first transmission shaft is connected to the first bearing seat, and the other end is connected to the spur gear box component, a second belt is arranged between the pulley component and the first transmission shaft, the second transmission shaft passes through the spur gear box component, both ends of the second transmission shaft are respectively inserted into the bevel gear box component, and one end of the third transmission shaft is inserted into the bevel gear box component;

[0009] A cutting component, the center position of which is connected to the other end of the third transmission shaft.

[0010] Furthermore, the pulley component includes a belt shaft, a first wheel body, a second wheel body and a belt shell, the belt shell is fixed on the base, and both ends of the belt shaft pass through the belt shell and are fixedly connected to the first wheel body and the second wheel body respectively.

[0011] Furthermore, the pulley component also includes a belt bearing seat, which is arranged inside the belt housing, and the belt shaft passes through the belt bearing seat.

[0012] Furthermore, the spur gear box component includes a spur gear box body, a first spur gear and a second spur gear, the first spur gear and the second spur gear are meshed with each other and are arranged in the spur gear box body, the first transmission shaft passes through and is connected to the first spur gear, and the second transmission shaft passes through and is connected to the second spur gear.

[0013] Furthermore, the spur gear box component also includes a first transmission bearing seat, which is arranged on the side of the spur gear box body, a second transmission housing is arranged on the connecting frame, a connecting plate is arranged on the upper part of the second transmission housing, and a first bearing seat is arranged on the connecting plate, and both ends of the first transmission shaft are respectively rotatably connected to the first transmission bearing seat and the first bearing seat.

[0014] Furthermore, the second transmission housing wraps the middle portion of the second transmission shaft, and the second transmission housing is detachably connected to the upper portion of the connecting frame.

[0015] Furthermore, the bevel gear box component includes a bevel gear box body, a first bevel gear and a second bevel gear, the first bevel gear is meshed with the second bevel gear, the end of the second transmission shaft is connected to the first bevel gear, and one end of the third transmission shaft is connected to the second bevel gear.

[0016] Furthermore, a third transmission housing is connected to the bevel gear housing, and the third transmission housing wraps the middle part of the third transmission shaft.

[0017] Furthermore, the cutting component includes a cutter disc and blades, the middle portion of the cutter disc is fixedly connected to the third transmission shaft, and the blades are evenly distributed at the edge of the cutter disc.

[0018] Furthermore, the base includes a connecting seat and a supporting seat, the supporting seat is installed on the connecting seat, the pull-down component and the hydraulic component are installed on the connecting seat, and the pulley component is installed on the supporting seat.

[0019] Compared with the prior art, the utility model has the following technical effects:

[0020] In the technical solution provided by the embodiment of the utility model, the function of the supporting component is to connect power equipment such as tractors, and the supporting component includes a base, a connecting frame, a pull-down component and a hydraulic component, one end of the hydraulic component is connected to the base, and the other end is connected to the connecting frame, one end of the pull-down component is connected to the middle of the base, and the other end is connected to the middle of the connecting frame; the function of the transmission component is to drive the cutting component to rotate, and the transmission component includes a pulley component, a spur gear box component, a bevel gear box component, a first transmission shaft, a second transmission shaft and a third transmission shaft, the pulley component is installed on the base, a first bearing seat is arranged on the connecting frame, one end of the first transmission shaft is connected to the first bearing seat, and the other end is connected to the spur gear box component, a second belt is arranged between the pulley component and the first transmission shaft, the second transmission shaft passes through the spur gear box component, and the second transmission shaft The two ends are respectively inserted into the bevel gear box component, and one end of the third transmission shaft is inserted into the bevel gear box component; the function of the cutting component is to cut the grass, and the center position of the cutting component is connected to the other end of the third transmission shaft. Compared with the prior art, the rotation speed of the lawn mower is slower, and it is more difficult to cut the grass with more juice. Moreover, for the grass, in order to meet the economic benefits, it is necessary to make the cutting position changeable and the height adjustable, and the cutting position of the existing lawn mower is relatively high, so that the cutting position of the grass is relatively high, thereby reducing the economic benefits of the grass. In this technical solution, the base is connected to the tractor and other power equipment, and the tractor drives the transmission component to rotate through the belt. The transmission component transmits power to the cutting component, and the cutting component cuts the grass. The pull-down component and the hydraulic component cooperate with each other to adjust the height of the connecting frame, thereby achieving the technical effect of adjusting the height of the cutting component. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the three-dimensional structure of a double-disc lawn mower provided in an embodiment of the utility model;

[0022] Figure 2 A schematic diagram of the main structure of a double disc mower provided by an embodiment of the utility model;

[0023] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0024] Figure 4 for Figure 2 A schematic diagram of the enlarged structure at B in the middle;

[0025] Figure 5 A schematic diagram of a top view of a double disc mower provided in an embodiment of the utility model;

[0026] Figure 6The present invention is a schematic diagram of a left-side structural view of a double-disc lawn mower provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0027] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0028] like Figures 1 to 6 As shown, the utility model embodiment provides a double disc mower, comprising:

[0029] A supporting component, the supporting component includes a base 11, a connecting frame 12, a pull-down component 13 and a hydraulic component 14, one end of the hydraulic component 14 is connected to the base 11, and the other end is connected to the connecting frame 12, one end of the pull-down component 13 is connected to the middle of the base 11, and the other end is connected to the middle of the connecting frame 12;

[0030] A transmission component, the transmission component includes a pulley component 21, a spur gear box component 22, a bevel gear box component 23, a first transmission shaft 24, a second transmission shaft 25 and a third transmission shaft 26, the pulley component 21 is installed on the base 11, a first bearing seat 225 is arranged on the connecting frame 12, one end of the first transmission shaft 24 is connected to the first bearing seat 225, and the other end is connected to the spur gear box component 22, a second belt 27 is arranged between the pulley component 21 and the first transmission shaft 24, the second transmission shaft 25 passes through the spur gear box component 22, both ends of the second transmission shaft 25 are respectively inserted into the bevel gear box component 23, and one end of the third transmission shaft 26 is inserted into the bevel gear box component 23;

[0031] The cutting component 3 , the center position of which is connected to the other end of the third transmission shaft 26 .

[0032] In the technical solution provided by the embodiment of the utility model, the function of the supporting component is to connect power equipment such as a tractor, and the supporting component includes a base 11, a connecting frame 12, a pull-down component 13 and a hydraulic component 14, one end of the hydraulic component 14 is connected to the base 11, and the other end is connected to the connecting frame 12, one end of the pull-down component 13 is connected to the middle of the base 11, and the other end is connected to the middle of the connecting frame 12; the function of the transmission component is to drive the cutting component 3 to rotate, and the transmission component includes a pulley component 21, a spur gear box component 22, a bevel gear box component 23, a first transmission shaft 24, a second transmission shaft 25 and a third transmission shaft 26, the pulley component 21 is installed on the base 11, and a first bearing seat 225 is arranged on the connecting frame 12, one end of the first transmission shaft 24 is connected to the first bearing seat 225, and the other end is connected to the spur gear box component 22, a second belt 27 is arranged between the pulley component 21 and the first transmission shaft 24, and the second transmission shaft 25 passes through the The spur gear box component 22, both ends of the second transmission shaft 25 are respectively inserted into the bevel gear box component 23, and one end of the third transmission shaft 26 is inserted into the bevel gear box component 23; the function of the cutting component 3 is to cut the grass, and the center position of the cutting component 3 is connected to the other end of the third transmission shaft 26. Compared with the prior art, the rotation speed of the lawn mower is slower, and it is more difficult to cut the grass with more juice. In addition, for the grass, in order to meet the economic benefits, it is necessary to make the cutting position changeable and the height adjustable, and the cutting position of the existing lawn mower is higher, so that the cutting position of the grass is higher, thereby reducing the economic benefits of the grass. In this technical solution, the base 11 is connected to the tractor and other power equipment, and the tractor drives the transmission component to rotate through the belt, and the transmission component transmits power to the cutting component 3, and the cutting component 3 cuts the grass. The pull-down component 13 and the hydraulic component 14 cooperate with each other to adjust the height of the connecting frame 12, thereby achieving the technical effect of adjusting the height of the cutting component 3.

[0033] The function of the supporting component is to connect a power device such as a tractor. The supporting component includes a base 11, a connecting frame 12, a pull-down component 13 and a hydraulic component 14. One end of the hydraulic component 14 is connected to the base 11, and the other end is connected to the connecting frame 12. One end of the pull-down component 13 is connected to the middle of the base 11, and the other end is connected to the middle of the connecting frame 12. The base 11 includes a connecting seat 111 and a support seat 112. The support seat 112 is installed on the connecting seat 111. The pull-down component 13 and the hydraulic component 14 are installed on the connecting seat 111. The pulley component 21 is installed on the connecting seat 111. On the support seat 112, the middle part of the connecting seat 111 has a groove for connecting and fixing to a power equipment such as a tractor. Bolts are arranged at the bottom of the support seat 112, and the support seat 112 is fixed to the connecting seat 111 by bolts. The upper part of the support seat 112 is fixedly installed with a pulley component 21. One end of the hydraulic component 14 is fixed to the connecting seat 111, and the other end is rotatably connected to the connecting frame 12. One end of the pull-down component 13 is rotatably connected to the middle part of the connecting seat 111, and the other end is rotatably connected to the middle part of the connecting frame 12. The height of the connecting frame 12 can be adjusted by the pull-down component 13, thereby achieving the technical effect of adjusting the height of the cutting component 3; transmission The function of the component is to drive the cutting component 3 to rotate. The transmission component includes a pulley component 21, a spur gear box component 22, a bevel gear box component 23, a first transmission shaft 24, a second transmission shaft 25 and a third transmission shaft 26. The pulley component 21 is installed on the base 11. A first bearing seat 225 is arranged on the connecting frame 12. One end of the first transmission shaft 24 is connected to the first bearing seat 225, and the other end is connected to the spur gear box component 22. A second belt 27 is arranged between the pulley component 21 and the first transmission shaft 24. The second transmission shaft 25 passes through the spur gear box component 22. The two ends of the third transmission shaft 26 are respectively inserted into the bevel gear box component 23, one end of the pulley component 21 is connected to a power device such as a tractor through a first belt, and the other end is connected to the first transmission shaft 24 through a second belt 27, so that the first transmission shaft 24 rotates, and the first transmission shaft 24 drives the spur gear in the spur gear box component 22 to rotate, thereby driving the second transmission shaft 25 to rotate, and the two ends of the second transmission shaft 25 drive the bevel gear in the bevel gear box component 23 to rotate, and then drive the third transmission shaft 26 to rotate, and the third transmission shaft 26 drives the cutting component 3 to rotate, and the cutting component 3 cuts the forage grass;The function of the cutting component 3 is to cut the grass. The center position of the cutting component 3 is connected to the other end of the third transmission shaft 26. In this technical solution, the base 11 is connected to a power device such as a tractor. The tractor drives the transmission component to rotate through a belt. The transmission component transmits power to the cutting component 3. The cutting component 3 cuts the grass. The pull-down component 13 and the hydraulic component 14 cooperate with each other to adjust the height of the connecting frame 12, thereby achieving the technical effect of adjusting the height of the cutting component 3. ;

[0034] Furthermore, the pulley component 21 includes a belt shaft 211, a first wheel body 212, a second wheel body 213 and a belt shell 214, the belt shell 214 is fixed on the base 11, and both ends of the belt shaft 211 pass through the belt shell 214 and are fixedly connected to the first wheel body 212 and the second wheel body 213 respectively. In this embodiment, the pulley component 21 is further defined, and the belt housing 214 is fixed on the upper part of the support seat 112. The pulley component 21 also includes a belt shaft 211 seat, and the belt shaft 211 seat is arranged inside the belt housing 214. The belt shaft 211 passes through the belt shaft 211 seat, and the belt shaft 211 seat is arranged on the inner side of both ends of the belt housing 214. The two ends of the belt shaft 211 pass through and are connected to the belt shaft 211 seat. At the same time, the two ends of the belt shaft 211 are respectively connected to the first wheel body 212 and the second wheel body 213. The first wheel body 212 and the second wheel body 213 are used to install the first belt / second belt 27, so as to achieve the technical effect of driving the first wheel body 212 and the second wheel body 213 to rotate around their axes.

[0035] Further, the spur gear box component 22 includes a spur gear box body 221, a first spur gear 222 and a second spur gear 223, the first spur gear 222 and the second spur gear 223 are meshed with each other and arranged in the spur gear box body 221, the first transmission shaft 24 passes through and is connected to the first spur gear 222, and the second transmission shaft 25 passes through and is connected to the second spur gear 223. In this embodiment, the spur gear box component 22 is further defined, the spur gear box body 221 is installed on the upper part of the connecting frame 12, the first spur gear 222 and the second spur gear 223 are arranged in the spur gear box body 221, the first spur gear 222 is meshed with the second spur gear 223, specifically, the spur gear box component 22 also includes a first transmission bearing seat 224, the first transmission bearing seat 224 is arranged on the side of the spur gear box body 221, the second transmission housing 28 is arranged on the connecting frame 12, a connecting plate is arranged on the upper part of the second transmission housing 28, a second transmission shaft 25 seat is arranged on the connecting plate, and both ends of the first transmission shaft 24 are rotatably connected to the The first transmission bearing seat 224 and the second transmission shaft 25 bearing seat, specifically, a transmission pulley 241 is set on the first transmission shaft 24, and the second belt 27 is sleeved on the transmission pulley 241, so that the second belt 27 can drive the first transmission shaft 24 to rotate around its axis, and then drive the first spur gear 222 and the second spur gear 223 to rotate, and then drive the second transmission shaft 25 to rotate around its axis. Specifically, the second transmission shell 28 wraps the middle part of the second transmission shaft 25, and the second transmission shell 28 is detachably connected to the upper part of the connecting frame 12, and can wrap the second transmission shaft 25, so as to achieve the technical effect of sealing the second transmission shaft 25.

[0036] Furthermore, the bevel gear box component 23 includes a bevel gear box body 231, a first bevel gear 232 and a second bevel gear 233, the first bevel gear 232 is meshed with the second bevel gear 233, the end of the second transmission shaft 25 is connected to the first bevel gear 232, and one end of the third transmission shaft 26 is connected to the second bevel gear 233. In this embodiment, the bevel gear box component 23 is further defined, the side of the bevel gear box body 231 is fixedly connected to the second transmission housing 28, the second transmission shaft 25 extends into the bevel gear box body 231 and is connected to the first bevel gear 232, the first bevel gear 232 is meshed with the second bevel gear 233, and the third transmission shaft 26 is fixedly connected to the second bevel gear 233, so that the second transmission shaft 25 drives the third transmission shaft 26 to rotate through the bevel gear box component 23, thereby achieving the technical effect of driving the cutting component 3 to rotate, and optionally, it also includes a third transmission housing 4, the third transmission housing 4 is connected to the bevel gear box body 231, the third transmission housing 4 wraps the middle part of the third transmission shaft 26, the upper end of the third transmission housing 4 is fixedly connected to the bevel gear box body 231, and the third transmission housing 4 completely wraps the third transmission shaft 26, thereby achieving the effect of sealing the third transmission shaft 26.

[0037] The power will gradually decrease during the transmission process because the friction generated by the movement between the machine parts will consume part of the power. Therefore, in order to reduce the loss of power during the transmission process, it is necessary to strictly select the bearings and consider the lubrication relationship between the gears. The transmission efficiency from the tractor to the belt shaft 211 is determined to be η 0 =0.88×0.94=0.827, so the power of belt shaft 211 is P 1 =P 0 η 0 =7.5×0.827kw=6.5kw. The following data can be calculated:

[0038] Belt shaft 211:

[0039] P 1 =6.2Kw,n 0 =1440r / min

[0040] T 1 =(9550P 1 ) / n 0 =(9550×6.2) / 1440N=41.1N·m

[0041] First transmission shaft 24: η 1 =0.98,η 2 =0.95

[0042] P 2 =P 1 η 1η 1 =6.2×0.95×0.98kw=5.9kw

[0043] n 1 =(n 0 ×D 1 ) / D 2 =(1440×140) / 110=1833r / min

[0044] T 2 =9550P 2 / n 1 =(9550×5.9) / 1833N·m=30.7N·m

[0045] Second transmission shaft 25: η 4 =0.96,η 3 =0.98

[0046] P 3 =P 2 η 3 η 4 =5.9×0.96×0.98kw=5.6kw

[0047] n 2 =n 1 i 2 =1833×1r / min=1833r / min

[0048]

[0049] The third transmission shaft 26: η 6 =0.95,η 5 =0.97

[0050] p 4 =p 3 η 5 η 6 =5.6×0.97×0.95kw=5.2kw

[0051] n 3 =n 2 i 3 =1833×1r / min=1833r / min

[0052]

[0053] According to the above situation, the base diameter of the pulley is D 2 =110mm, D 1 =140mm, n 1 =1440r / min, belt drive power: P 1=6.2Kw,i 1 =D 2 / D 1 =110 / 140=0.79.

[0054] 1. Determine the calculation power P ca

[0055] Working condition coefficient K A =1.0, so:

[0056] P ca =K A P 1 =1.0×6.2kw=6.2kw (3-5)

[0057] 2. Choose the type of V-belt

[0058] According to P ca 、n 1 , choose type A.

[0059] 3. Check belt speed

[0060] ν=πD 2 ×n 1 / (60×1000)=(3.14×110×1440) / 60000=8.29m / s, because 5m / s<ν<25m / s,

[0061] So the belt speed is appropriate.

[0062] 4. V-belt center distance a and reference length L d Determination

[0063] Initially select the center distance a 0 =950mm, calculate the required reference length according to the formula:

[0064] L d0 =2a 0 +π×(D 1 +D 2 ) / 2+(D 2 -D 1 ) 2 / 4a 0

[0065] =2×950+3.14×(110+140) / 2+(110-140) 2 / (4×950)mm=2292.7mm

[0066] The base length of the selected belt is L d =2280mm.

[0067] Calculate the actual center distance a according to the formula:

[0068] a≈a 0 +(L d -L d0 ) / 2 = 950 + (2280-2292.7) / 2 = 943.65 mm

[0069] According to the formula:

[0070]

[0071] Get L d :909.45~1012.05mm.

[0072] 5. Check the wrap angle on the small pulley

[0073] α 1 ≈180°-(D 1 -D 2 )·57.3° / a=180°-(140-110)×57.3° / 943.65≈182°>120°

[0074] 6. Calculate the number of small pulleys z

[0075] Calculate P of a single V-belt r .

[0076] By D 1 =140mm and n 1 =1440r / min, then P 0 =2.73kw. According to n 1 =1440r / min, i 1 =0.79 and A-type band, find ΔP 0 =0.29kw to get K α =1,

[0077] Get K L =1.07.

[0078] P r =(P 0 +ΔP 0 )·K α ·K L =(2.73+0.29)×1×1.07kw=3.2kw

[0079] Number of roots z:

[0080]

[0081] Take 2 pieces.

[0082] 7. Calculate the initial tension F of a single V-belt 0

[0083] The mass per unit length of type A belt is q = 0.105 kg / m, so:

[0084]

[0085] 8. Calculate the compressive force F p

[0086]

[0087] Therefore, the belt reference length L d =2280mm, pulley base diameter D 1 =140mm, D 2 =110mm, center distance a=909.45~1012.05mm, initial tension of single belt F 0 =287.7N.

[0088] Bevel gear transmission is the second stage transmission, and its transmission ratio is i 2 =1, so the structures of the driving and driven bevel gears are the same.

[0089] 1. Selection of spur bevel gear materials

[0090] (1) Use standard straight bevel gear transmission with a pressure angle of 20°.

[0091] (2) Change the machine to be towed by a tractor and select level 7 accuracy.

[0092] (3) Material selection. Transmission power of bevel gear: (one pair on each side), n 2 =1833r / min, transmission ratio i 2 = 1. Straight bevel gear 1 uses 45Cr (quenched and tempered), with a tooth surface hardness of 280HRC, and straight bevel gear 2 uses 45 steel (quenched and tempered), with a tooth surface hardness of 240HRC.

[0093] 2. Straight bevel gear parameters

[0094] Number of teeth 1 =35, z 2 =36, modulus m = 2mm, pressure angle α = 20°, displacement coefficient x 1 =0, x 2 =0.2, cone angle δ 1 =44°19', δ 2 =45°41', tooth width b 1 =b 2 =25mm.

[0095] The first bevel gear 232 is made of 40Cr (quenched and tempered), and the second bevel gear 233 is made of 45 steel (quenched and tempered).

[0096] The gear is designed according to grade 7 accuracy. The parameters of each part of the spur bevel gear are shown in Table 1.

[0097]

[0098]

[0099] Table 1

[0100] Further, the cutting component 3 includes a cutter disc 31 and blades 32, the middle of the cutter disc 31 is fixedly connected to the third transmission shaft 26, and the blades 32 are evenly distributed at the edge of the cutter disc 31. In this embodiment, the cutting component 3 is further defined, the middle of the cutter disc 31 is fixedly connected to the third transmission shaft 26, and the center of the cutter disc 31 coincides with the axis of the third transmission shaft 26, the number of blades 32 is multiple, and the multiple blades 32 are installed at the edge of the cutter disc 31 by bolts, which can cut the grass, thereby achieving the technical effect of quickly cutting the grass.

[0101] The blade 32 has the highest efficiency when the speed is 1833r / min. The first-stage transmission ratio is i 1 =0.786; the transmission ratio of the second stage is i 2 =1; the transmission ratio of the third stage is i 3 =1, the transmission ratio from the tractor to the first wheel body 212 is 1, that is, n 0 =1440r / min. The primary reference diameter of the second wheel body 213 is D 1 =140mm, according to the transmission ratio i 1 =0.79, we can get the diameter D of the transmission pulley 2 =D 1 i 1 =140×0.79mm=110mm, speed According to the above transmission scheme, it is easy to know that the speed of the second transmission shaft 25 is: 2 =n 1 i 1 =1833×1r / min=1833r / min, the speed of the third transmission shaft 26 is: n 3 =n 2 i 3 =1833×1r / min=1833r / min. The cutter disc 31 is fixed on the third transmission shaft 26, that is, the rotation speed of the blade 32 on the cutter disc 31 is also 1833r / min. Therefore, the above transmission scheme can meet the requirements and finally the rotation speed of the blade 32 reaches the optimal expected rotation speed.

[0102] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A double disc mower, characterized in that: include: A supporting component, the supporting component comprising a base, a connecting frame, a pull-down component and a hydraulic component, one end of the hydraulic component is connected to the base, and the other end is connected to the connecting frame, one end of the pull-down component is connected to the middle of the base, and the other end is connected to the middle of the connecting frame; A transmission component, the transmission component comprises a pulley component, a spur gear box component, a bevel gear box component, a first transmission shaft, a second transmission shaft and a third transmission shaft, the pulley component is mounted on the base, a first bearing seat is arranged on the connecting frame, one end of the first transmission shaft is connected to the first bearing seat, and the other end is connected to the spur gear box component, a second belt is arranged between the pulley component and the first transmission shaft, the second transmission shaft passes through the spur gear box component, both ends of the second transmission shaft are respectively inserted into the bevel gear box component, and one end of the third transmission shaft is inserted into the bevel gear box component; A cutting component, the center position of which is connected to the other end of the third transmission shaft.

2. A double disc mower according to claim 1, characterized in that: The pulley component comprises a belt shaft, a first wheel body, a second wheel body and a belt shell. The belt shell is fixed on the base. Two ends of the belt shaft pass through the belt shell and are fixedly connected to the first wheel body and the second wheel body respectively.

3. A double disc mower according to claim 2, characterized in that: The pulley component further comprises a belt bearing seat, wherein the belt bearing seat is arranged inside the belt housing, and the belt shaft passes through the belt bearing seat.

4. A double disc mower according to claim 1, characterized in that: The spur gear box component includes a spur gear box body, a first spur gear and a second spur gear, the first spur gear and the second spur gear are meshed with each other and arranged in the spur gear box body, the first transmission shaft passes through and is connected to the first spur gear, and the second transmission shaft passes through and is connected to the second spur gear.

5. A double disc mower according to claim 4, characterized in that: The spur gear box component also includes a first transmission bearing seat, which is arranged on the side of the spur gear box body, a second transmission housing is arranged on the connecting frame, a connecting plate is arranged on the upper part of the second transmission housing, and the first bearing seat is arranged on the connecting plate, and the two ends of the first transmission shaft are respectively rotatably connected to the first transmission bearing seat and the first bearing seat.

6. A double disc mower according to claim 5, characterized in that: The second transmission housing wraps the middle portion of the second transmission shaft, and the second transmission housing is detachably connected to the upper portion of the connecting frame.

7. A double disc mower according to claim 6, characterized in that: The bevel gear box component includes a bevel gear box body, a first bevel gear and a second bevel gear, the first bevel gear is meshed with the second bevel gear, the end of the second transmission shaft is connected to the first bevel gear, and one end of the third transmission shaft is connected to the second bevel gear.

8. A double disc mower according to claim 7, characterized in that: Also includes: A third transmission housing is connected to the bevel gear housing, and the third transmission housing wraps the middle part of the third transmission shaft.

9. A double disc mower according to claim 8, characterized in that: The cutting component comprises a cutter disc and blades. The middle portion of the cutter disc is fixedly connected to the third transmission shaft, and the blades are evenly distributed at the edge of the cutter disc.

10. A double disc mower according to any one of claims 1 to 9, characterized in that: The base comprises a connecting seat and a supporting seat, the supporting seat is mounted on the connecting seat, the pull-down component and the hydraulic component are mounted on the connecting seat, and the pulley component is mounted on the supporting seat.

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