Pull type flail knife mower

Abstract

The pull type flail knife mower comprises a panel, a traction frame, a gearbox and wheels, the traction frame and the gearbox are both fixed on the panel, the traction frame is connected with a traction machine, an input shaft of the gearbox is a spline shaft, and a large belt pulley is fixed on an output shaft of the gearbox. The device is characterized in that a middle flail knife, a left flail knife and a right flail knife are arranged below the panel, the middle flail knife, the left flail knife and the right flail knife are all fixed at the lower end of a flail knife shaft, and the flail knife shaft is fixed on the panel through a flail knife bearing and a bearing seat; a large belt pulley on the gearbox drives the flail knife shaft, the middle flail knife, the left flail knife and the right flail knife to rotate synchronously through a transmission mechanism. According to the pull type flail knife mower, the traction machine drives the whole mower to move and drives the middle flail knife, the left flail knife and the right flail knife to rotate, so that mowing operation is achieved, the operation efficiency is high, and trimming operation on pasturing area grassland or large-area golf course lawns can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a mower, more specifically, relates to a towed flail mower. BACKGROUND

[0002] At present, there are many types of mowers, usually including hand-pushed, hand-held and driven types. The hand-pushed type is to cut weeds by pushing with hands, the hand-held type is to cut weeds by holding handles with both hands, and the driven type is a small car mode to cut weeds by driving. However, the existing mowers have relatively low power, which are only suitable for small area lawns and greenery trimming operation, and are not suitable for pasture or large area golf course, i.e. cannot meet the trimming efficiency requirement of pasture and golf course lawns. Therefore, the utility model provides a towed flail mower, which is suspended on a traction machine to trim pasture or lawns with high efficiency. SUMMARY

[0003] The utility model discloses in order to overcome the above technical problem's shortcoming provides a towed flail mower.

[0004] The towed flail mower comprises a panel, a traction frame, a gearbox and wheels, the traction frame and the gearbox are both fixed on the upper surface of the panel, the traction frame is connected with a traction machine, the input shaft of the gearbox is a spline shaft connected with the output shaft of the traction machine, and a large pulley is fixed on the output shaft of the gearbox; both sides of the panel are fixed with wheel supporting rods, and wheels are arranged at both ends of the wheel supporting rods; characterized in that: a middle flail, a left flail and a right flail are arranged below the panel, the left flail and the right flail are located at both sides of the middle flail, the middle flail, the left flail and the right flail are all fixed on the lower end of a flail shaft, the flail shaft is fixed on the panel through a flail bearing and a bearing seat; the large pulley on the gearbox drives the flail shaft and the middle flail, the left flail and the right flail to rotate synchronously through a transmission mechanism.

[0005] The towed flail mower comprises a panel, a traction frame, a gearbox and wheels, the traction frame and the gearbox are both fixed on the upper surface of the panel, the traction frame is connected with a traction machine, the input shaft of the gearbox is a spline shaft connected with the output shaft of the traction machine, and a large pulley is fixed on the output shaft of the gearbox; both sides of the panel are fixed with wheel supporting rods, and wheels are arranged at both ends of the wheel supporting rods; characterized in that: a middle flail, a left flail and a right flail are arranged below the panel, the left flail and the right flail are located at both sides of the middle flail, the middle flail, the left flail and the right flail are all fixed on the lower end of a flail shaft, the flail shaft is fixed on the panel through a flail bearing and a bearing seat; the large pulley on the gearbox drives the flail shaft and the middle flail, the left flail and the right flail to rotate synchronously through a transmission mechanism.

[0006] The utility model discloses a trailer type flail mower, including tensioning wheel and the tensioning mechanism who is connected with tensioning wheel, and the tensioning wheel rotation is arranged on the tensioning wheel axle, and the panel between the middle flail and gearbox is provided with a strip slot, and the lower end of tensioning wheel axle is arranged in the strip slot.

[0007] The utility model discloses a trailer type flail mower, the wheel is set up on the wheel support through U -shaped fork and wheel axle, and the wheel rotation is arranged on the U -shaped fork, and the U -shaped fork is rotationally arranged on the wheel support through the wheel axle, and the periphery of the wheel axle between the U -shaped fork and the wheel support is sequentially provided with lower sleeve, thrust ball bearing, middle sleeve and upper sleeve from bottom to top.

[0008] The utility model discloses a trailer type flail mower, the upper surface of the panel is fixed with the support, and the gearbox is fixed on the support.

[0009] The utility model discloses a trailer type flail mower, and the upper portion of the panel is provided with a cover plate for protecting the transmission mechanism.

[0010] The utility model discloses a trailer type flail mower, and the periphery of the panel is provided with a downwardly inclined splash-proof folded edge.

[0011] The utility model discloses a trailer type flail mower, and the upper surface of the panel is fixed with the traction frame and the gearbox, and the lower portion of the panel is provided with middle, left and right flails, the flail is rotationally fixed on the panel through the flail shaft, the flail bearing and the bearing seat, the large belt pulley fixed on the gearbox drives the middle flail, the left flail and the right flail to rotate through the transmission mechanism.

[0012] Further, by setting the driving mechanism composed of the middle, left and right belt pulleys and the driving and driven belts, the large belt pulley of the gearbox output end is transmissionally connected with the middle belt pulley through the driving belt, and the middle belt pulley is transmissionally connected with the left and right belt pulleys through the driven belts, so that the middle flail, the left flail and the right flail can be driven to rotate through the driving and driven belts when the spline shaft of the gearbox input end is rotated by the traction machinery, so as to realize the cutting of the grass or lawn.

[0013] Further, by setting the tensioning wheel and the tensioning mechanism, the tensioning mechanism is composed of the connecting plate, the screw rod, the fixed ear plate and the adjusting nut, the tensioning wheel is arranged on the strip-shaped groove on the panel through the tensioning wheel shaft, the driving belt and the driven belt are wound on the two sides of the tensioning wheel, the screw rod passes through the through hole on the ear plate and is fixedly connected with the tensioning wheel shaft through the connecting plate, so that the position of the tensioning wheel on the strip-shaped groove can be adjusted by rotating the adjusting nut, so as to realize the tensioning of the driving belt and the driven belt.

[0014] Further, the wheel is arranged on the wheel shaft support through the U-shaped fork and the wheel shaft, the lower sleeve, the thrust ball bearing, the middle sleeve and the upper sleeve are sequentially arranged on the wheel shaft between the U-shaped fork and the wheel shaft from bottom to top, and the height of the wheel can be adjusted by replacing the lower sleeve, the middle sleeve and the upper sleeve with different heights or removing the lower sleeve, the middle sleeve or the upper sleeve, so that the mowing height is adjusted. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a front view of the towing type flail mower of the utility model;

[0016] Figure 2 It is a rear view of the towing type flail mower of the utility model;

[0017] Figure 3 It is a left view of the towing type flail mower of the utility model;

[0018] Figure 4 It is a right view of the towing type flail mower of the utility model;

[0019] Figure 5 It is a top view of the towing type flail mower of the utility model;

[0020] Figure 6 It is a bottom view of the towing type flail mower of the utility model;

[0021] Figure 7 、 Figure 8 All are the perspective views of the towing type flail mower of the utility model;

[0022] Figure 9 It is a connection schematic view of the wheel and the wheel support in the utility model;

[0023] Figure 10 It is a connection schematic view of the flail and the belt pulley in the utility model;

[0024] Figure 11 It is a structure schematic view of the tensioning wheel and the tensioning mechanism in the utility model.

[0025] In the figure: 1 panel, 2 traction frame, 3 gearbox, 4 panel support, 5 middle flail, 6 left flail, 7 right flail, 8 flail bearing and bearing seat, 9 flail shaft, 10 wheel, 11 spline shaft, 12 large pulley, 13 middle pulley, 14 left pulley, 15 right pulley, 16 driving belt, 17 driven belt, 18 tension pulley, 19 splash baffle, 20 wheel support rod, 21 support, 22 strip-shaped groove, 23 U-shaped fork, 24 wheel shaft, 25 lower sleeve, 26 middle sleeve, 27 upper sleeve, 28 thrust ball bearing, 29 tension pulley shaft, 30 adjusting nut, 31 connecting plate, 32 screw rod, 33 fixed ear plate. DETAILED DESCRIPTION

[0026] The utility model will be further explained in connection with the drawings and examples.

[0027] As Figures 1 to 6 shown, the front view, rear view, left view, right view, top view and bottom view of the trailer type flail mower of the utility model are respectively given, Figure 7 and Figure 8 all give its perspective view, the shown trailer type flail mower is by panel 1, traction frame 2, gearbox 3, wheel 10, middle flail 5, left flail 6 and right flail 7 are constituted, and panel 1 plays the role of fixing and supporting, and the lower surface of panel 1 is fixed with panel support 4, and panel 1 is supported by panel support 4, so that panel 1 has good stability. Traction frame 2 and gearbox 3 are all fixed on panel 1, and traction frame 2 is used for being hung in the rear of traction machinery;The input shaft of gearbox 3 is spline shaft 11, and large pulley 12 is fixed on the output shaft of gearbox 3, and the input shaft of gearbox 3 is connected with the power output shaft in the rear of traction machinery through a transmission shaft, so that the rotation of large pulley 12 on the output shaft of gearbox 3 can be driven.

[0028] The middle flail 5, left flail 6 and right flail 7 shown are arranged below panel 1, and left flail 6 and right flail 7 are located on the left and right sides of middle flail 5, and middle flail 5, left flail 6 and right flail 7 are cut to the grass by rotating. As Figure 10 shown, the connection schematic diagram of the middle flail and pulley in the utility model is given, and the shown middle flail 5, left flail 6 and right flail 7 are all fixed on the lower end of flail shaft 9, and flail shaft 9 is rotatably fixed on flail bearing and bearing seat 8, and flail bearing and bearing seat 8 is fixed on the lower surface of panel 1, and the upper end of flail shaft 9 penetrates panel 1 and extends out. The output end of gearbox 3 drives the rotation of flail shaft 9 on middle flail 5, left flail 6 and right flail 7 through a transmission mechanism, so as to drive the rotation of middle flail 5, left flail 6 and right flail 7, to realize the cutting of grass.

[0029] The transmission mechanism consists of a central pulley 13, a left pulley 14, a right pulley 15, a drive belt 16, and a driven belt 17. The central pulley 13, left pulley 14, and right pulley 15 are respectively fixed to the upper ends of the blade shafts 9 on the central blade 5, left blade 6, and right blade 7. A large pulley 12 on the output end of the gearbox 3 is connected to the central pulley 13 via the drive belt 16, allowing the central pulley 13 to rotate as it rotates. The central pulley 13 is connected to the left and right pulleys 14 and 15 via the driven belt 17, causing them to rotate synchronously as it rotates. Thus, driven by the output shaft at the rear of the traction machine, the gearbox 3 and transmission mechanism drive the central blade 5, left blade 6, and right blade 7 to rotate, achieving the cutting of grass.

[0030] To achieve tensioning of the driving belt 16 and the driven belt 17, a tensioning wheel 18 and a tensioning mechanism are provided on the panel 1 shown. The tensioning wheel 18 is located between the intermediate pulley 13 and the large pulley 12. A strip groove 22 is formed on the panel 1 between the intermediate pulley 13 and the large pulley 12. The tensioning wheel 18 is fixed on the tensioning wheel shaft 29, and the lower end of the tensioning wheel shaft 29 is placed in the strip groove 22. The driving pulley 16 and the driven belt 17 are respectively wound around the tensioning wheel 18 from both sides.

[0031] like Figure 11 The diagram shows the structure of the tensioning wheel and tensioning mechanism in this invention. The tensioning mechanism consists of a connecting plate 31, a screw 32, a fixed ear plate 33, and an adjusting nut 30. The fixed ear plate 33 is fixed to the upper surface of the panel 1, and a through hole is provided on the fixed ear plate 33 through which the screw 32 passes. One end of the connecting plate 31 is fixed to the tensioning wheel shaft 29, and the other end is fixedly connected to the screw 32. The outer end of the screw 32 passes through the through hole on the fixed ear plate 33, and the adjusting nut 31 is located at the outer end of the screw 32 passing through the through hole. Thus, by rotating the adjusting nut 31, the position of the tensioning wheel 18 on the strip groove 22 can be adjusted to achieve the adjustment of the tension of the driving belt 16 and the driven belt 17.

[0032] Both sides of the panel 1 are fixed with wheel supporting rods 20, both ends of which are provided with wheels 10. The wheels 10 are rotatably fixed on U-shaped forks 23, upper ends of which are fixed with vertical wheel shafts 24, which pass through the wheel supporting rods 20 and are rotatable. On the wheel shafts 24 between the U-shaped forks 23 and the wheel supporting rods 20, from bottom to top are sequentially provided with lower sleeves 25, thrust ball bearings 28, middle sleeves 26 and upper sleeves 27. Thus, by changing the lengths of the lower sleeves 25, the middle sleeves 26 and the upper sleeves 27, or removing the lower sleeves 25, the middle sleeves 26 or the upper sleeves 27, the height of the wheels 10 can be changed, and the cutting height of the middle flail 5, the left flail 6 and the right flail 7 can be controlled.

[0033] The rear of the upper surface of the panel 1 is fixed with a support 21, on which the gearbox 3 is fixed. The traction frame 2 is composed of two vertical rods and two pull plates, the two pull plates being fixed on the support 21, and the two vertical plates being fixed on the front of the upper surface of the panel 1. The periphery of the panel 1 is provided with downwardly inclined splash-proof folded edges 19, which, together with the panel 1, can avoid the cut grass from splashing. Above the panel 1, a cover plate should also be provided to shield and protect the transmission mechanism.

Claims

1. A towed flail mower, comprising a face plate (1), a towing frame (2), a gearbox (3) and wheels (10), the towing frame and the gearbox are both fixed on the upper surface of the face plate, the towing frame is connected with a towing machine, the input shaft of the gearbox is a spline shaft (11) connected with the output shaft of the towing machine, a large belt pulley (12) is fixed on the output shaft of the gearbox; wheel supporting rods (20) are fixed on both sides of the face plate, wheels (10) are arranged at both ends of the wheel supporting rods; characterized in that: The lower part of the panel is provided with a middle flail (5), a left flail (6) and a right flail (7), the left and right flails are located on the two sides of the middle flail, the middle flail, the left flail and the right flail are fixed to the lower end of the flail shaft (9), the flail shaft is fixed to the panel through the flail bearing and the bearing seat (8); the large pulley on the gearbox drives the flail shaft and the middle flail, the left flail and the right flail to rotate synchronously through the transmission mechanism.

2. A towed flail mower according to claim 1, characterised in that: The transmission mechanism is composed of a middle pulley (13), a left pulley (14), a right pulley (15), a driving belt (16) and a driven belt (17), the middle pulley, the left pulley and the right pulley are fixed to the upper end of the flail shaft (9) fixed with the middle flail (5), the left flail (6) and the right flail (7), the large pulley (12) is in transmission connection with the middle pulley through the driving belt, and the middle pulley is in transmission connection with the left pulley and the right pulley through the driven belt.

3. A towed flail mower according to claim 2, characterised in that: The tensioning mechanism is composed of a connecting plate (31), a screw rod (32) and a fixed lug plate (33), the fixed lug plate is fixed to the upper surface of the panel, the two ends of the connecting plate are connected with the tensioning wheel shaft and the screw rod respectively, a through hole through which the screw rod passes is formed in the fixed lug plate, and an adjusting nut (30) is arranged at the end of the screw rod.

4. A towed flail mower according to claim 1 or 2, characterised in that: The wheel (10) is arranged on the wheel supporting rod (20) through a U-shaped fork (23) and a wheel shaft (24), the wheel is rotatably arranged on the U-shaped fork, the U-shaped fork is rotatably arranged on the wheel supporting rod through the wheel shaft, and the outer periphery of the wheel shaft between the U-shaped fork and the wheel supporting rod is sequentially provided, from bottom to top, with a lower sleeve (25), a thrust ball bearing (28), a middle sleeve (26) and an upper sleeve (27).

5. A towed flail mower according to claim 1 or 2, characterised in that: The upper surface of the panel (1) is fixed with a support (21), and the gearbox (3) is fixed to the support; the traction frame (2) is composed of two vertical rods and two pull rods, the two pull rods are fixed to the support, and the two vertical plates are fixed to the front end of the upper surface of the panel (1).

6. A towed flail mower according to claim 1 or 2, characterised in that: The upper part of the panel (1) is provided with a cover plate for protecting the transmission mechanism.

7. A towed flail mower according to claim 1 or 2, characterised in that: The periphery of the panel (1) is provided with a downwardly inclined splash-proof folded edge (19).

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