Transmission system of pruning operation machine

Abstract

The utility model discloses a pruning operation machine transmission system which comprises a power input shaft, a walking power output shaft and an operation power output shaft, and the power input shaft is in transmission connection with the walking power output shaft through a first reduction gear mechanism. A second reduction gear mechanism is arranged between the walking power output shaft and the operation power output shaft, and the operation power output shaft is in transmission connection with a transmission part in clutch fit with the second reduction gear mechanism. According to the scheme, the problem that the use safety is low due to the fact that an existing pruning operation machine cannot independently control operation power is solved.

Description

Technical Field

[0001] The utility model relates to a pruning machine, in particular to a transmission system for the pruning machine. Background Art

[0002] A pruning machine is a machine that uses a small engine as power to carry out walking and pruning operations. Chinese patent document CN204948867U discloses a self-propelled tea garden double-side pruning machine, including a power assembly and a cutter assembly driven by the power assembly, and also includes a walking mechanism and a control mechanism, wherein the walking mechanism is composed of a rear wheel support and a front wheel bracket extending forward from the upper part of the rear wheel support, the lower parts of the rear wheel support and the front wheel bracket are respectively connected to the rear wheel and the front wheel, the power assembly and the cutter assembly are supported above the rear wheel support, the cutter assembly extends downward to form left and right cutters located between the rear wheel support and the front wheel bracket, and Y-shaped control handles are extended backward on both sides of the power assembly; in addition, a gasoline engine that outputs power to the power assembly is installed in the middle of the control handle, a throttle handle connected to the gasoline engine throttle through a throttle flexible shaft is hinged on the upper part of the control handle, and a clutch handle that drives the rear wheel clutch brake through a clutch cable is hinged on the lower part of the control handle. When in use, the clutch handle only controls the clutch brake of the rear wheel, thereby controlling the movement of the machine; and the speed of the cutter assembly is controlled by the throttle of the gasoline engine, so when the gasoline engine is in working condition, the cutter assembly is always in working condition.

[0003] However, in actual use, the pruning tools of the pruning machine are relatively sharp. When the pruning operation is completed in stages and the machine is only moved, the pruning tools are still in working condition, which easily increases the risk of injury from the pruning tools and reduces the safety of the pruning machine. Utility Model Content

[0004] The utility model aims to provide a pruning machine transmission system to solve the problem that the existing pruning machine cannot individually control the working power, resulting in low safety in use.

[0005] In order to achieve the above-mentioned purpose, the basic scheme of the utility model provides a pruning machine transmission system, including a power input shaft, a travel power output shaft and an operating power output shaft, the power input shaft and the travel power output shaft are connected by a first reduction gear mechanism, a second reduction gear mechanism is arranged between the travel power output shaft and the operating power output shaft, and the operating power output shaft is connected by a transmission member that engages and disengages with the second reduction gear mechanism.

[0006] The beneficial effect of this basic solution is that the power input shaft sequentially transmits power to the travel power output shaft and the working power output shaft, and by controlling the clutch relationship between the transmission member and the second reduction gear mechanism, the power on and off of the working power output shaft can be adjusted without affecting the power on and off of the travel power output shaft, thereby realizing control only on the on and off of the working power, thereby facilitating the disconnection of the working power without losing the travel power of the pruning machine, which is beneficial to improving the safety of the use of the pruning machine. At the same time, setting the transmission member after multi-stage reduction can effectively ensure the reliability and comfort of the use of the transmission member.

[0007] Preferably, the second reduction gear mechanism includes a second reduction driven gear rotatably connected to the working power output shaft, the transmission member is splined with the working power output shaft, and the transmission member is clutched with the second reduction driven gear. With such an arrangement, when the transmission member is combined with the second reduction driven gear, the second reduction driven gear transmits power to the working power output shaft through the transmission member, which simplifies the power transmission path and helps improve reliability.

[0008] Preferably, the transmission member and the second speed reduction driven gear are engaged and disengaged via a tooth-type coupling portion. Such an arrangement is conducive to further improving the reliability of the transmission member.

[0009] Preferably, the transmission member is connected to a control mechanism for driving the transmission member to slide along the working power output shaft, the control mechanism comprises a guide rod arranged parallel to the working power output shaft, a transmission arm is slidably connected to the guide rod, the transmission arm is rotatably connected to the transmission member, and a control arm is connected to the transmission arm. With such an arrangement, the transmission member is operated through the control mechanism, thereby improving the convenience and reliability of operation.

[0010] Preferably, an elastic member is connected to the guide rod to keep the transmission member and the second reduction driven gear in a separation trend. With such a configuration, when the force used to combine the transmission member and the second reduction driven gear disappears, the transmission member can be quickly separated from the second reduction driven gear under the action of the elastic member, thereby disconnecting the power output shaft of the operation power, thereby ensuring the timeliness of disconnecting the operation power, which is conducive to improving the safety of the trimming machine.

[0011] Preferably, the output end of the working power output shaft is connected to a gear support frame, the working power output shaft is connected to a working power driving bevel gear, the gear support frame is connected to a working power driven bevel gear meshing with the working power driving bevel gear, and the working power driven bevel gear is connected to the working shaft. Such a configuration is conducive to improving the reliability of working power transmission.

[0012] Preferably, the walking power output shaft is connected to the walking power transmission shaft via a walking bevel gear mechanism, and the output end of the walking power transmission shaft is connected to the walking wheel shaft via a worm gear mechanism. Such an arrangement is conducive to improving the reliability of walking power transmission.

[0013] Preferably, a walking clutch mechanism is arranged between the walking wheel shaft and the worm gear mechanism. With such an arrangement, it is convenient to control the on and off of the walking power, thereby improving practicality.

[0014] The utility model has the following beneficial effects:

[0015] By adopting this solution, the power transmission of the pruning machine is reliable, and the on and off of the pruning power can be independently controlled without affecting the walking power, thereby improving the use safety of the pruning machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of an embodiment of a transmission system of a pruning machine of the utility model;

[0017] Figure 2 for Figure 1 Schematic diagram of the coordination between the transmission parts and surrounding parts;

[0018] Figure 3 for Figure 1 A schematic diagram of the structure of the output end of the middle working power output shaft;

[0019] Figure 4 It is a schematic diagram of the travel power transmission part of the transmission system of a pruning machine of the utility model;

[0020] Figure 5 The utility model is a schematic diagram of the cooperation between the travel power transmission shaft and the worm gear of the transmission system of a pruning machine. DETAILED DESCRIPTION

[0021] The following is further described in detail through specific implementation methods:

[0022] The figure marks in the drawings of the specification include: engine 1, power input shaft 2, first reduction driving gear 31, first reduction driven gear 32, travel power output shaft 4, second reduction driving gear 51, second reduction driven gear 52, guide rod 61, elastic member 62, transmission arm 63, control arm 64, transmission member 7, working power output shaft 8, gear support frame 9, working shaft 10, travel power transmission shaft 11, worm 12, travel wheel shaft 13, worm wheel 14.

[0023] The embodiment is basically as shown in the attached Figures 1 to 5As shown: A pruning machine transmission system includes a power input shaft 2, a travel power output shaft 4 and an operating power output shaft 8. The power input shaft 2 and the travel power output shaft 4 are connected in transmission through a first reduction gear mechanism. In this embodiment, the first reduction gear mechanism includes a first reduction driving gear 31 and a first reduction driven gear 32 that mesh with each other, the first reduction driving gear 31 is connected and fixed to the power input shaft 2, and the first reduction driven gear 32 is connected and fixed to the travel power output shaft 4. A second reduction gear mechanism is arranged between the travel power output shaft 4 and the operating power output shaft 8. In this embodiment, the second reduction gear mechanism includes a second reduction driving gear 51 and a second reduction driven gear 52 that mesh with each other, the second reduction driving gear 51 is connected and fixed to the travel power output shaft 4, and the second reduction driven gear 52 is loosely sleeved on the operating power output shaft 8, so that the second reduction driven gear 52 is rotationally matched with the operating power output shaft 8. The operating power output shaft 8 is transmission-connected with a transmission member 7 that is clutched and matched with the second reduction gear mechanism. In this embodiment, the transmission member 7 is splined with the working power output shaft 8, and the transmission member 7 is clutched with the second reduction driven gear 52. Specifically, the clutching mode is tooth-type clutching, and the transmission member 7 and the second reduction driven gear 52 are both provided with tooth-type engaging parts that cooperate with each other.

[0024] The transmission member 7 is connected with a control mechanism for driving the transmission member 7 to slide along the working power output shaft 8. The control mechanism includes a guide rod 61 arranged parallel to the working power output shaft 8, and a transmission arm 63 is slidably connected to the guide rod 61. The transmission arm 63 is rotatably connected to the transmission member 7, so that the transmission arm 63 does not affect the rotation of the transmission member 7 when sliding along the guide rod 61; the transmission arm 63 is connected with a control arm 64, and the transmission arm 63 is driven to move by operating the control arm 64. An elastic member 62 is connected to the guide rod 61 for keeping the transmission member 7 and the second reduction driven gear 52 separated. Specifically, the elastic member 62 is preferably a coil spring, which is sleeved on the guide rod 61 and located on the side of the transmission member 7 facing the second reduction driven gear 52. One end of the elastic member 62 is fixed to the guide rod 61, and the other end is fixed to the transmission arm 63, so that the transmission arm 63 has a tendency to drive the transmission member 7 away from the second reduction driven gear 52 under the elastic force of the elastic member 62.

[0025] The output end of the working power output shaft 8 is connected to a gear support frame 9, the working power output shaft 8 is connected to a working power active bevel gear, the gear support frame 9 is connected to a working power driven bevel gear meshing with the working power active bevel gear, and the working power driven bevel gear is connected to a working shaft 10. In this embodiment, two working shafts 10 are provided to facilitate the operation of two sets of pruning tools. The travel power output shaft 4 is connected to a travel power transmission shaft 11 through a travel bevel gear mechanism, and the output end of the travel power transmission shaft 11 is connected to a travel wheel shaft 13 through a worm gear mechanism. Specifically, the travel power transmission shaft 11 is coaxially connected and fixed with the worm 12, and the travel wheel shaft 13 is coaxially arranged with the worm wheel 14 of the worm gear mechanism and connected through a travel clutch mechanism.

[0026] The specific implementation process is as follows: the power input shaft 2 transmits the power of the engine 1 to the travel power output shaft 4 and the working power output shaft 8 in turn. By controlling the clutch relationship between the transmission member 7 and the second reduction gear mechanism, the power on and off of the working power output shaft 8 can be adjusted without affecting the power on and off of the travel power output shaft 4, thereby realizing control only on the on and off of the working power, thereby facilitating the disconnection of the working power without losing the travel power of the pruning machine, which is beneficial to improving the safety of the pruning machine.

[0027] The above is only an embodiment of the utility model, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent.

Claims

1. A transmission system of a pruning machine, comprising a power input shaft, a travel power output shaft and an operating power output shaft, wherein the power input shaft and the travel power output shaft are connected to each other through a first reduction gear mechanism, and a second reduction gear mechanism is arranged between the travel power output shaft and the operating power output shaft, characterized in that: The working power output shaft is drivingly connected with a transmission member that is engaged and disengaged with the second reduction gear mechanism.

2. The pruning machine transmission system according to claim 1, characterized in that: The second reduction gear mechanism comprises a second reduction driven gear rotatably connected to the working power output shaft, the transmission member is spline-matched with the working power output shaft, and the transmission member is clutch-matched with the second reduction driven gear.

3. The pruning machine transmission system according to claim 2, characterized in that: The transmission member and the second speed reduction driven gear are engaged and disengaged via a tooth-type coupling portion.

4. The pruning machine transmission system according to claim 3, characterized in that: The transmission member is connected to a control mechanism for driving the transmission member to slide along the working power output shaft. The control mechanism includes a guide rod arranged parallel to the working power output shaft. A transmission arm is slidably connected to the guide rod. The transmission arm is rotatably connected to the transmission member, and a control arm is connected to the transmission arm.

5. The pruning machine transmission system according to claim 4, characterized in that: The guide rod is connected with an elastic member for keeping the transmission member and the second speed reduction driven gear in a separation trend.

6. The pruning machine transmission system according to any one of claims 1 to 5, characterized in that: The output end of the working power output shaft is connected to a gear support frame, the working power output shaft is connected to a working power active bevel gear, the gear support frame is connected to a working power driven bevel gear meshing with the working power active bevel gear, and the working power driven bevel gear is connected to the working shaft.

7. The pruning machine transmission system according to claim 6, characterized in that: The travel power output shaft is connected to the travel power transmission shaft through a travel bevel gear mechanism, and the output end of the travel power transmission shaft is connected to the travel wheel shaft through a worm gear mechanism.

8. The pruning machine transmission system according to claim 7, characterized in that: A traveling clutch mechanism is arranged between the traveling wheel shaft and the worm gear mechanism.

Images