Cutting knife stopping device of mower

Abstract

The utility model discloses a mowing machine cutting knife stopping device, which comprises a control mechanism, a transmission mechanism, a tensioning mechanism and a brake mechanism, the transmission mechanism is a belt pulley mechanism and is used for transmitting power to a hob, the tensioning mechanism is connected with the brake mechanism, the control mechanism is used for controlling the tensioning mechanism to tension the transmission mechanism, and the brake mechanism is connected with the transmission mechanism. The tensioning mechanism is in linkage with the braking mechanism, the belt wheel mechanism comprises a driving wheel and a hob belt wheel, a transmission belt is arranged between the driving wheel and the hob belt wheel, the tensioning mechanism comprises a tensioning wheel, the tensioning wheel is located outside the transmission belt, the tensioning wheel is assembled at one end of the fixing base in a rotating mode, and the tensioning wheel is in linkage with the braking mechanism. The other end of the fixing base is hinged to a machine frame of the mower, and a starting piece is arranged on the fixing base.

Description

TECHNICAL FIELD

[0001] The utility model relates to a mower cutter stopping device. BACKGROUND

[0002] At present, the general mower mainly closes the engine or motor through the cutter switch and power switch, thereby stopping the rotation of the cutter, but the cutter cannot stop rotating quickly in this case, and cannot avoid the danger immediately when the unexpected situation occurs, such as hitting a big stone, which cannot stop quickly and causes more damage to the cutter, and cannot stop quickly when turning on one side, which causes more damage to the driver.

[0003] Another way is to use an electromagnetic brake to stop the rotation of the cutter, although this way can quickly stop the rotation of the cutter, but when stopping suddenly, it will be subjected to a large friction force, and after stopping several times, it is easy to cause damage to the brake, and a high-quality brake is needed to alleviate the problem, in any case, this will increase the manufacturing cost and maintenance cost of the mower. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving the above technical problems, and provides a mower cutter stopping device.

[0005] A mower cutter stopping device, comprising a control mechanism, a transmission mechanism, a tensioning mechanism and a brake mechanism, the transmission mechanism is a belt pulley mechanism, which is used for transmitting power to the hob, the tensioning mechanism is connected with the brake mechanism, the control mechanism is used for controlling the tensioning work of the tensioning mechanism on the transmission mechanism, and the tensioning mechanism is connected with the brake mechanism.

[0006] Further, the belt pulley mechanism comprises a driving wheel and a hob pulley, and a transmission belt is arranged between the driving wheel and the hob pulley.

[0007] Further, the tensioning mechanism comprises a tensioning wheel, the tensioning wheel is located outside the transmission belt, the tensioning wheel is rotatably arranged on one end of a fixed seat, the other end of the fixed seat is hingedly connected to the frame of the mower, and a starting piece is arranged on the fixed seat.

[0008] Further, the brake mechanism comprises a brake lever, a brake, and a mounting seat, the mounting seat is fixed to the frame, the brake is connected with the hob pulley, the brake plate of the brake is connected with one end of the brake lever, and the other end of the brake lever passes through the mounting seat and is located behind the starting piece.

[0009] Further, a return spring is arranged between the fixed seat and the mounting seat.

[0010] Furthermore, the control mechanism includes a first spring, a second spring, a base, a handle, and a pull cable. The bottom of the handle is fixed to the base, one end of the base is hinged to the cab, and the other end of the base is connected to one end of the first spring. The other end of the first spring is fixed to the cab. One end of the second spring is connected to the handle, and the other end of the second spring is connected to one end of the pull cable. The other end of the pull cable is connected to a fixed base.

[0011] Beneficial effects: Compared with the prior art, this utility model assembles the tension wheel and the brake activation component into one part, and the cutter drive pulley and the brake into one part. When the brake handle is pulled, the tension wheel first loosens, the belt loosens and loses its power transmission capability, the cutter drive pulley loses its driving force, and then the brake is activated. At this time, the brake only needs to deal with the force brought by the inertia of the cutter, which greatly improves the service life of the brake. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the drive belt in a taut state;

[0013] Figure 2 This is a schematic diagram of the transmission belt in a slack state. Detailed Implementation

[0014] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.

[0015] like Figures 1-2 As shown, the components are: 1. Pull cable; 2. First spring; 3. Handle; 4. Base; 5. Second spring; 6. Transmission belt; 7. Drive wheel; 8. Tensioner wheel; 9. Fixing seat; 10. Starting component; 11. Return spring; 12. Mounting seat; 13. Brake lever; 14. Rolling pulley.

[0016] A lawnmower blade stopping device includes a control mechanism, a transmission mechanism, a tensioning mechanism, and a braking mechanism. The transmission mechanism is a pulley mechanism used to transmit power to the roller blade. The tensioning mechanism is connected to the braking mechanism. The control mechanism is used to control the tensioning operation of the tensioning mechanism on the transmission mechanism. The tensioning mechanism and the braking mechanism are linked.

[0017] In this embodiment, the pulley mechanism includes a drive wheel 7 and a hobbing pulley 14, with a transmission belt 6 between the drive wheel 7 and the hobbing pulley 14.

[0018] In this embodiment, the tensioning mechanism includes a tensioning wheel 8, which is located outside the transmission belt 6. The tensioning wheel 8 is rotatably mounted on one end of a fixed seat 9, and the other end of the fixed seat 9 is hinged to the frame of the lawnmower. The fixed seat 9 is provided with a starting component 10.

[0019] In this embodiment, the brake mechanism includes a brake lever 13, a brake, a mounting seat 12, the mounting seat 12 is fixed on the frame, the brake is connected with the hob pulley 14, the brake plate of the brake is connected with one end of the brake lever 13, the other end of the brake lever 13 passes through the mounting seat 12 and is located behind the starting piece 10.

[0020] In this embodiment, the reset spring 11 is arranged between the fixing seat 9 and the mounting seat 12.

[0021] In this embodiment, the control mechanism includes a first spring 2, a second spring 5, a base 4, a handle 3, a pull wire 1, the bottom of the handle 3 is fixed on the base 4, one end of the base 4 is hinged in the cab, the other end of the base 4 is connected with one end of the first spring 2, the other end of the first spring 2 is fixed on the cab, one end of the second spring 5 is connected with the handle 3, the other end of the second spring 5 is connected with one end of the pull wire 1, the other end of the pull wire 1 is connected with the fixing seat 9, wherein the pull wire 1 passes through.

[0022] It should be noted that in this embodiment, the triggering of the brake mechanism is bound to the tensioning mechanism, through the rotation of the fixing seat 9, the starting piece 10 is brought to impact the rear brake lever 13, the brake lever 13 drives the brake plate to complete the braking, which is a mechanical way, in addition, the triggering mode of the brake mechanism can also be replaced into the contact switch mode, that is, the brake lever 13 is provided with a contact switch, when the starting piece 10 is in contact with the contact switch, the brake is started.

[0023] The use method is: when the position shown in Figure 1 , the tensioning wheel 8 makes the transmission belt 6 completely tensioned, the brake starting piece 10 is away from the brake lever 13, the cutter gets the power from the engine, and the brake is not started, the cutter is in the working state.

[0024] As shown in Figure 2 , when the handle 3 is pulled backward, the pull wire 1 is brought to move, the other end of the pull wire 1 moves downward, under the action of the brake spring, the fixing seat 9 of the tensioning wheel 8 rotates downward, at the same time, the tensioning wheel 8 is brought to leave the belt, and the tensioning wheel 8 is disengaged.

[0025] After the tensioning wheel 8 completely leaves the belt, the belt is relaxed and loses the ability to transmit power, the hob pulley 14 cannot get power from the drive pulley, at the same time, the brake starting piece 10 impacts the brake lever 13, pushes the brake lever 13 forward, at the same time, the brake plate on the brake is brought to brake the hob by the brake lever 13, and the braking behavior is completed.

[0026] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A mower cutterbar stop for a mower, the stop comprising: The control mechanism, the transmission mechanism, the tensioning mechanism and the brake mechanism, the transmission mechanism is a belt pulley mechanism, which is used for transmitting power to the hob, the tensioning mechanism is connected with the brake mechanism, and the control mechanism is used for controlling the tensioning work of the tensioning mechanism on the transmission mechanism.

2. A mower cutterbar stop as claimed in claim 1 wherein, The belt pulley mechanism comprises a driving wheel and a hob belt pulley, and a transmission belt is arranged between the driving wheel and the hob belt pulley.

3. A mower cutterbar stop as claimed in claim 2 wherein, The tensioning mechanism comprises a tensioning wheel, the tensioning wheel is located outside the transmission belt, the tensioning wheel is rotatably arranged on one end of a fixed seat, the other end of the fixed seat is hingedly connected to the frame of the mower, and the fixed seat is provided with a starting member.

4. A mower cutterbar stop as claimed in claim 3 wherein, The brake mechanism comprises a brake lever, a brake, and a mounting seat, the mounting seat is fixed to the frame, the brake is connected to the hob belt pulley, the brake plate of the brake is connected to one end of the brake lever, the other end of the brake lever passes through the mounting seat and is located behind the starting member.

5. A mower cutterbar stop as claimed in claim 4 wherein, A return spring is arranged between the fixed seat and the mounting seat.

6. A mower cutterbar stop as defined in claim 1, wherein, The control mechanism comprises a first spring, a second spring, a base, a handle and a pull wire, the bottom of the handle is fixed to the base, one end of the base is hingedly connected to the cab, the other end of the base is connected to one end of the first spring, the other end of the first spring is fixed to the cab, one end of the second spring is connected to the handle, the other end of the second spring is connected to one end of the pull wire, and the other end of the pull wire is connected to the fixed seat.

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