Self-propelled tobacco ridge pond digging machine

Abstract

The utility model provides a self-propelled tobacco ridge pond-digging machine which comprises a walking support, a gasoline engine, a handle, a walking gearbox, a pond-digging support, a pond-digging gearbox, a connecting rod mechanism, a pond-digging rod and a pond-digging shovel, a walking mechanism is arranged on the lower portion of the walking support, a supporting seat is arranged on the upper portion of the walking gearbox, one end of the handle is arranged on the supporting seat, and the other end of the handle is arranged on the supporting seat. The front end of the pond digging support is detachably connected with the rear portion of the walking support, the depth adjusting wheels are arranged on the two sides of the rear portion of the pond digging support respectively, the pond digging gearbox is arranged on the pond digging support, and the front end of the pond digging rod is hinged to one side of the pond digging support. The pond digging gearbox can achieve up-down reciprocating swing of the rear end of the pond digging rod by driving the connecting rod mechanism, and the pond digging shovel is arranged at the rear end of the pond digging rod. The pond digging machine is convenient to operate, mechanical pond digging operation can be smoothly achieved, meanwhile, the pond digging machine is simple in structure, and follow-up repair and maintenance are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of tobacco seedling transplanting and planting, in particular to a self-propelled tobacco ridge-making machine. Background Art

[0002] The area of ​​flue-cured tobacco cultivation in my country is relatively large, but its cultivation method is still mainly based on manual cultivation. Artificial cultivation of flue-cured tobacco not only requires a large workload, but also has high work intensity. With the continuous development of my country's economy, the cost of manual cultivation of flue-cured tobacco is also increasing. When planting flue-cured tobacco, it is generally necessary to dig ponds on the tobacco ridges. When digging ponds manually, the operators use hoes to dig pits on the tobacco ridges. Manual digging pits cannot ensure the uniformity of the pit distance and the size of the pits. At the same time, the efficiency of manual digging pits is low; further, there are also some pond digging machines on the market, but the existing pond digging machines are not convenient to operate, and at the same time, the structure is relatively complex, which makes it inconvenient to repair and maintain them in the later stage; in response to the above-mentioned problems existing in the above-mentioned tobacco field pond digging operations, the relevant technical personnel of the applicant and the relevant technical personnel of the Fengqing Branch of the Lincang City Company of Yunnan Tobacco Company have repeatedly discussed and studied, and finally proposed the design ideas of the technical solution of this application. Utility Model Content

[0003] The utility model aims to provide a self-propelled pond digging machine, which is easy to operate and facilitates the smooth realization of mechanized pond digging operations. At the same time, the pond digging machine has a simple structure and is conducive to subsequent repair and maintenance.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a self-propelled tobacco ridge pond digging machine, including a walking frame, a gasoline engine, a handrail, a walking gearbox, a pond digging frame, a pond digging gearbox, a connecting rod mechanism, a pond digging rod, and a pond digging shovel. The gasoline engine and the walking gearbox are fixedly arranged on the walking frame, and a walking mechanism is arranged at the lower part of the walking frame. The gasoline engine can provide power for the walking gearbox, and the walking gearbox can drive the walking mechanism. A support seat is arranged on the upper part of the walking gearbox, one end of the handrail is arranged on the support seat, and the handrail can be rotated, adjusted and positioned relative to the support seat. The front end of the pond digging frame is connected to the rear part of the walking frame in a detachable manner, and a depth adjustment wheel is arranged on both sides of the rear part of the pond digging frame. The pond digging gearbox is arranged on the pond digging frame, the gasoline engine can provide power for the pond digging gearbox, the front end of the pond digging rod is hingedly connected to one side of the pond digging frame, and the pond digging gearbox can realize the up and down reciprocating swing of the rear end of the pond digging rod by driving the connecting rod mechanism, and the pond digging shovel is arranged at the rear end of the pond digging rod.

[0005] Preferably, a first pulley is arranged on the power output shaft of the gasoline engine, a second pulley and a first sprocket are arranged on the power input shaft of the travel gearbox, a second sprocket is arranged on the power input shaft of the driving gearbox, a transmission belt is sleeved between the first pulley and the second pulley, and a transmission chain is sleeved between the first sprocket and the second sprocket.

[0006] Furthermore, the connecting rod mechanism includes a crank and a transmission connecting rod, one end of the crank is fixedly connected to the power output shaft of the digging gearbox, one end of the transmission connecting rod is hingedly connected to the other end of the crank, and the other end of the transmission connecting rod is hingedly connected to the middle and rear part of the digging rod.

[0007] Furthermore, a first supporting cross bar is provided at the rear end of the pond digging pole, a first transverse sleeve is sleeved on the first supporting cross bar, the first transverse sleeve can be adjusted left and right and positioned on the first supporting cross bar, a first vertical sleeve is fixedly provided on the first transverse sleeve, a first adjusting vertical rod provided on the upper part of the pond digging shovel is sleeved in the first vertical sleeve, and the first adjusting vertical rod can be adjusted and positioned relative to the first vertical sleeve.

[0008] Furthermore, a second supporting transverse tube is arranged at the rear of the pond-digging bracket, and a T-shaped connecting piece is sleeved on both ends of the second supporting transverse tube. The T-shaped connecting piece can be adjusted left and right and positioned on the second supporting transverse tube. The second adjusting vertical rod arranged on the upper part of the depth adjusting wheel is sleeved on the T-shaped connecting piece, and the second adjusting vertical rod can be adjusted up and down and positioned relative to the T-shaped connecting piece.

[0009] Furthermore, a first U-shaped slot is provided at the rear of the walking bracket, and a second U-shaped slot that can be inserted into the first U-shaped slot is provided at the front of the digging bracket. The first U-shaped slot and the second U-shaped slot are provided with a plurality of corresponding through holes. A pin is used to penetrate the corresponding through holes above and below the first U-shaped slot and the second U-shaped slot to achieve connection between the first U-shaped slot and the second U-shaped slot.

[0010] Furthermore, a first travel power output shaft is arranged at the bottom of the travel gearbox, and a first travel adjustment sleeve that can be adjusted and positioned is arranged at both ends of the first travel power output shaft. The travel mechanism includes two first travel wheels, and the first travel wheel is fixedly arranged at the outer end of the first travel adjustment sleeve.

[0011] Furthermore, a connecting seat is rotatably arranged above the support seat, the rear end of the handrail is hingedly connected to the connecting seat, a first telescopic positioning pin is vertically arranged on the connecting seat, and a plurality of first positioning holes equidistantly distributed along the circumference of the rotation center of the connecting seat are arranged on the support seat. When the movable end of the first telescopic positioning pin is inserted into the first positioning hole, the rotation limit of the connecting seat is realized. A support plate is arranged on the upper part of the connecting seat, and a second telescopic positioning pin is obliquely arranged on the support plate. An arc plate opposite to the second telescopic positioning pin is arranged on the lower part of the handrail, and a plurality of second positioning holes equidistantly distributed along the circumference of the up and down swinging rotation center of the handrail are arranged on the arc plate. When the movable end of the second telescopic positioning pin is inserted into the second positioning hole, the up and down swing limit of the handrail is realized.

[0012] A second travel power output shaft is arranged at the bottom of the travel gearbox, and a second travel adjustment sleeve that can be adjusted and positioned is arranged at both ends of the second travel power output shaft, the travel mechanism includes two groups of travel components, each group of the travel components includes a transmission chain, a second travel wheel, and two transmission protective covers, the two transmission protective covers are relatively fixedly connected, and an upper sprocket and a lower sprocket distributed up and down are rotatably arranged inside the two transmission protective covers, the transmission chain is sleeved on the upper sprocket and the lower sprocket, the second travel wheel is sleeved on the first supporting rotating shaft sleeved in the lower sprocket, the second travel adjustment sleeve is sleeved in the upper sprocket, and the second travel adjustment sleeve can drive the upper sprocket to rotate, and a spacing adjustment sleeve is fixedly arranged on the outer side of the upper part of the transmission protective cover close to the second travel power output shaft, and the second travel adjustment sleeve can rotate freely relative to the spacing adjustment sleeve, and the spacing adjustment sleeve is sleeved on a fixed support sleeve fixedly arranged on the travel bracket.

[0013] Furthermore, the travel gearbox has two speed gears, and the pond-digging gearbox has three speed gears.

[0014] The beneficial effects of the utility model are as follows: the utility model has a simple structure and is easy to manufacture; the handle can be rotated and swung up and down to adjust the positioning, so that when performing pond digging operations, the direction of the handle can be positioned according to needs, so that the operator can smoothly perform auxiliary operations of the pond digging machine on one side of the chimney; the walking gearbox has two walking gears, and the pond digging gearbox has three gears, so that the pond digging machine can realize pond digging operations with six pit distances, thereby improving the flexible applicability of the utility model; the spacing between the two walking wheels and the spacing between the two depth adjustment wheels can be adjusted, so that the utility model can be used for pond digging operations on chimneys of different widths; the up and down adjustment functions of the depth adjustment wheel and the pond digging shovel can be used to realize the depth adjustment of the pond digging pit, thereby also realizing the operational flexibility of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some preferred embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model from a first perspective;

[0017] Figure 2 A second perspective schematic diagram of the overall structure of the utility model;

[0018] Figure 3 A third perspective schematic diagram of the overall structure of the utility model;

[0019] Figure 4 for Figure 1 Enlarged view of point A in the middle;

[0020] Figure 5 for Figure 1 Enlarged view of point B in the middle;

[0021] Figure 6 for Figure 3 Enlarged view of point C in the middle;

[0022] Figure 7 It is a structural schematic diagram of a second specific embodiment of the walking mechanism;

[0023] Figure 8 It is a schematic diagram of the distribution of the transmission chain in the transmission protective cover;

[0024] In the figure: 1 walking bracket, 11 first U-shaped slot, 111 through hole, 112 supporting connecting rod, 2 gasoline engine, 21 first pulley, 3 handrail, 31 connecting seat, 311 first telescopic positioning pin, 312 support plate, 313 second telescopic positioning pin, 314 arc plate, 4 walking gearbox, 41 support seat, 42 first walking power output shaft, 421 second walking power output shaft, 43 first walking adjustment sleeve, 431 second walking adjustment sleeve, 44 first walking wheel, 441 second walking wheel, 442 transmission protection cover, 4421 spacing adjustment sleeve, 443 fixed support sleeve Pipe, 444 transmission chain, 445 upper sprocket, 446 lower sprocket, 447 first supporting shaft, 45 second pulley, 46 first sprocket, 5 digging pond bracket, 51 second U-shaped slot, 52 second supporting cross pipe, 521 T-shaped connecting piece, 53 depth adjusting wheel, 531 second adjusting vertical rod, 6 digging pond gearbox, 61 second sprocket, 62 power output shaft, 63 crank, 71 crank, 72 connecting rod, 8 digging pond rod, 81 first supporting cross rod, 811 first horizontal sleeve, 812 first vertical sleeve, 813 articulated shaft, 9 digging pond shovel, 91 first adjusting vertical rod, 101 T-shaped screw. DETAILED DESCRIPTION

[0025] The following will be combined with specific embodiments and attached Figure 1-8 , the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the preferred embodiments of the utility model, not all of the embodiments. Those skilled in the art can make similar modifications without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0026] The utility model provides a self-propelled tobacco ridge-making machine (such as Figure 1As shown), it includes a walking frame 1, a gasoline engine 2, a handrail 3, a walking gearbox 4, a pond-digging frame 5, a pond-digging gearbox 6, a connecting rod mechanism, a pond-digging rod 8, and a pond-digging shovel 9. The gasoline engine 2 is a prior art product, which relies on gasoline as fuel to achieve power output. The gasoline engine 2 and the walking gearbox 4 are fixedly arranged on the walking frame 1, and a walking mechanism is arranged at the lower part of the walking frame 1. The gasoline engine 2 can provide power for the walking gearbox 4, that is, the power of the gasoline engine 2 can be input into the walking gearbox 4, and the walking gearbox 4 can drive the walking mechanism. In actual application, when the walking gearbox 4 is used to achieve After the rotation drive of the walking mechanism, the walking bracket 1 is realized to walk on the ground, thereby providing driving force for the pond digging operation. A support seat 41 is arranged on the upper part of the walking gearbox 4, and one end of the handrail 3 is arranged on the support seat 41, and the handrail 3 can be rotated, adjusted and positioned relative to the support seat 41. In actual application, when the direction of the handrail 3 is consistent with the traveling direction, it is convenient to realize the walking control of the utility model on the road surface. When the direction of the handrail 3 is 90 degrees with the traveling direction, it is convenient for the operator to stand on one side of the ridge to realize the control of the utility model during the pond digging operation, so that the pond digging operation can be carried out smoothly; the pond digging bracket The front end of the frame 5 is connected to the rear part of the walking frame 1 in a detachable manner. In actual application, the detachable connection between the pond-digging frame 5 and the walking frame 1 is utilized to facilitate the transportation and storage of the utility model. A depth adjustment wheel 53 is provided on both sides of the rear part of the pond-digging frame 5. The depth adjustment capability of the depth adjustment wheel 53 can be utilized to achieve the depth adjustment of the pond-digging pit, thereby improving the application flexibility of the utility model. The pond-digging gearbox 6 is provided on the pond-digging bracket 5. The gasoline engine 2 can provide power for the pond-digging gearbox 6, that is, the gasoline engine 2 can drive the pond-digging gearbox 6 to output power. The front end of the pond-digging rod 8 It is hingedly connected to one side of the pond-digging bracket 5. Specifically, an articulated shaft 813 is hingedly set at the front end of the pond-digging rod 8, and the articulated shaft 813 is fixedly connected to one side of the pond-digging bracket 5. The front end of the pond-digging rod 8 can rotate freely around the articulated shaft 813. The pond-digging gearbox 6 can realize the up and down reciprocating swing of the rear end of the pond-digging rod 8 by driving the connecting rod mechanism. The pond-digging shovel 9 is set at the rear end of the pond-digging rod 8. In actual application, the up and down swing of the pond-digging rod 8 cooperates with the continuous walking of the walking bracket 1 to realize the pond-digging operation on the tobacco ridge, thereby realizing the mechanized operation of pond-digging on the tobacco ridge, and then improving the pond-digging efficiency, while ensuring the pond-digging quality.In actual application, in order to improve the flexibility of the pond digging of the utility model, the traveling gearbox 3 can be provided with two speed gears, and the pond digging gearbox 6 can be provided with three speed gears. The gear change can be realized by setting a gear operating lever on the traveling gearbox 3 and the pond digging gearbox 6. The power output or cut-off control of the traveling gearbox 3 and the pond digging gearbox 6 can be realized by setting a clutch operating lever on the traveling gearbox 3 and the pond digging gearbox 6. Through the above-mentioned setting method, the utility model can have six kinds of pond digging pit distances, which can greatly meet the needs of flue-cured tobacco planting.

[0027] On the basis of the above implementation, the specific implementation method of the gasoline engine 2 to realize the driving of the travel gearbox 4 and the driving gearbox 6 is as follows: a first pulley 21 is arranged on the power output shaft of the gasoline engine 2, a second pulley 45 and a first sprocket 46 are arranged on the power input shaft of the travel gearbox 4, the second pulley 45 and the first sprocket 46 are arranged coaxially, a second sprocket 61 is arranged on the power input shaft of the driving gearbox 6, a transmission belt is sleeved between the first pulley 21 and the second pulley 46, the transmission belt is used to realize the rotational drive of the second pulley 45 and the first sprocket 46, a transmission chain is sleeved between the first sprocket 46 and the second sprocket 61, and the transmission chain is used to realize the rotational drive of the second sprocket 61.

[0028] On the basis of the above embodiment, the specific implementation of the connecting rod mechanism is as follows: the connecting rod mechanism includes a crank 71 and a transmission connecting rod 72, one end of the crank 71 is fixedly connected to the power output shaft 62 of the pond digging gearbox 6, one end of the transmission connecting rod 72 is hingedly connected to the other end of the crank 71, and the other end of the transmission connecting rod 72 is hingedly connected to the middle and rear part of the pond digging rod 8. In actual application, when the crank 71 rotates driven by the power output shaft 62, it further drives the transmission connecting rod 72 to swing, and the swing of the transmission connecting rod 72 realizes the up and down swinging of the pond digging rod 8, and then realizes the up and down swinging of the pond digging shovel 9. During the advancement of the utility model, the pond digging shovel 9 swings up and down synchronously, so the fixed-distance pond digging operation above the tobacco ridge can be realized.

[0029] In actual application, in order to realize the up-down and left-right adjustment capability of the pond digging shovel 9 so as to better meet the needs of pond digging, a first supporting cross bar 81 is provided at the rear end of the pond digging rod 8, and a first horizontal sleeve 811 is sleeved on the first supporting cross bar 81. The first horizontal sleeve 811 can be adjusted left-right and positioned on the first supporting cross bar 81. A first vertical sleeve 812 is fixedly provided on the first horizontal sleeve 811. The first adjusting vertical rod 91 provided on the upper part of the pond digging shovel 9 is sleeved in the first vertical sleeve 812. The first adjusting vertical rod 91 can be adjusted relative to the first vertical sleeve 812. Adjustment and positioning are performed, and the left and right adjustment ability of the first horizontal sleeve 811 is used to achieve the left and right adjustment of the pond shovel 9, and the up and down adjustment ability of the first adjustment vertical rod 91 is used to achieve the up and down adjustment of the pond shovel 9. In order to facilitate the adjustment stability of the pond shovel 9, the cross-sections of the first supporting horizontal rod 81, the first horizontal sleeve 811, the first vertical sleeve 812 and the first adjustment vertical rod 91 are all hexagonal cross-sections. At the same time, T-bolts 101 are provided on the first horizontal sleeve 811 and the first vertical sleeve 812, and the T-bolts 101 are used to achieve the top pressure fixation of the corresponding first horizontal sleeve 811 or the first adjustment vertical rod 91.

[0030] In practical applications, in order to achieve the up-down and left-right adjustment capabilities of the depth adjustment wheel 53 so as to better meet the needs of pond digging, a second support cross tube 52 is provided at the rear of the pond digging bracket 5, and a T-shaped connecting piece 521 is sleeved at both ends of the second support cross tube 52. The T-shaped connecting piece 521 can be adjusted left and right and positioned on the second support cross tube 52. Specifically, one end of the T-shaped connecting rod 521 is sleeved in the second support cross tube 52, and a fixing member for pressing and fixing is provided on the second support cross tube 52. A T-shaped bolt 101 is provided on the T-shaped connecting rod 521, and the second adjusting vertical rod 531 arranged on the upper part of the depth adjusting wheel 53 is sleeved on the T-shaped connecting piece 521, and the second adjusting vertical rod 531 can be adjusted up and down and positioned relative to the T-shaped connecting piece 521, and a T-shaped bolt 101 for pressing and positioning the second adjusting vertical rod 531 is provided on the T-shaped connecting piece 521. In actual applications, the second supporting cross tube 52, the T-shaped connecting rod 521 and the second adjusting vertical rod 531 are all made of square tubes.

[0031] On the basis of the above embodiments, the specific implementation method of the connection between the walking bracket 1 and the pond-digging bracket 5 is as follows: a first U-shaped slot 11 is set at the rear part of the walking bracket 1, and a second U-shaped slot 51 that can be inserted into the first U-shaped slot 11 is set at the front part of the pond-digging bracket 5, and a plurality of mutually corresponding through holes 111 are set on the first U-shaped slot 11 and the second U-shaped slot 51. A pin is used to penetrate the upper and lower corresponding through holes 111 of the first U-shaped slot 11 and the second U-shaped slot 51 to achieve the connection between the first U-shaped slot 11 and the second U-shaped slot 51. In actual applications, in order to improve the traction stability of the walking bracket 1 on the pond-digging bracket 5, the number of through holes 111 can be set to 3, and pins can be inserted into at least two through holes 111.

[0032] On the basis of the above embodiments, the specific implementation method of the travel gearbox 4 to realize the driving of the first travel wheel 44 is as follows: a first travel power output shaft 42 is arranged at the bottom of the travel gearbox 4, and a first travel adjustment sleeve 43 that can be adjusted and positioned is arranged at both ends of the first travel power output shaft 42. The travel mechanism includes two first travel wheels 44, and a first travel wheel 44 is fixedly arranged at the outer end of the first travel adjustment sleeve 43. Specifically, the outer end of the first travel power output shaft 42 and the cross-section of the first travel adjustment sleeve 43 are both hexagonal, and a plurality of adjustment holes are arranged at the outer end of the first travel power output shaft 42. A positioning hole matching the above-mentioned adjustment hole is arranged on the first travel adjustment sleeve 43, and a pin shaft is used to penetrate the positioning hole and the corresponding adjustment hole to realize the fixation of the first travel adjustment sleeve 43 to the first travel power output shaft 42. By adjusting the position of the first travel adjustment sleeve 43 on the first travel power output shaft 42, the spacing adjustment of the two first travel wheels 44 is realized, so that the two first travel wheels 44 can travel on both sides of tobacco ridges of different widths.

[0033] In actual application, when the rotation speed of the first walking wheel 44 is constant, the larger the diameter of the first walking wheel 44 is, the faster the walking speed of the first walking wheel 44 is. If the speed of the first walking wheel 44 is too fast, it is not conducive to the pond digging operation. Under the condition that the rotation speed and the diameter of the first walking wheel 44 cannot be changed, in order to facilitate the smooth progress of the pond digging operation, a second specific embodiment of the walking mechanism is set here, and its specific implementation method is as follows: a second walking power output shaft 421 is set at the bottom of the walking gearbox 4, and a second walking adjustment sleeve 431 that can be adjusted and positioned is set at both ends of the second walking power output shaft 421. Specifically, a positioning hole can be set on the second walking power output shaft 421, and a second walking adjustment sleeve 431 that can be adjusted and positioned can be set at the bottom of the walking gearbox 4. A plurality of adjustment holes are provided on the walking adjustment sleeve 431, and a pin is inserted into the adjustment hole and the positioning hole to realize the fixed connection between the second walking adjustment sleeve 431 and the second walking power output walking 421, and the second walking power output shaft 421 drives the rotation of the second walking adjustment sleeve 431, and the walking mechanism includes two groups of walking components, each group of the walking components includes a transmission chain 444, a second walking wheel 441, and two transmission protective covers 442, and the two transmission protective covers 442 are relatively fixedly connected. Specifically, bolts can be used to realize the connection and fixation of the two transmission protective covers 442, and an upper sprocket 445 and a lower sprocket 446 distributed up and down are rotatably arranged inside the two transmission protective covers 442, and the transmission chain 444 is sleeved on the On the upper sprocket 445 and the lower sprocket 446, the second walking wheel 441 is sleeved on the first supporting shaft 447 sleeved in the lower sprocket 446, and the second walking adjustment sleeve 431 is sleeved in the upper sprocket 445. The upper sprocket 445 can be driven to rotate by the rotation of the second walking adjustment sleeve 431, and the second walking adjustment sleeve 431 can be adjusted left and right relative to the upper sprocket 445. A spacing adjustment sleeve 4421 is fixedly provided on the outer side of the upper part of the transmission protective cover 442 close to the second walking power output shaft 421 and is arranged on the outer side of the second walking adjustment sleeve 431. The second walking adjustment sleeve 431 can rotate freely relative to the spacing adjustment sleeve 431. Specifically, the second walking adjustment sleeve 431 can rotate freely relative to the spacing adjustment sleeve 431. The second walking adjustment sleeve 431 is sleeved in the bearing arranged inside the spacing adjustment sleeve 4421, and the spacing adjustment sleeve 4421 is sleeved on a fixed support sleeve 443 fixedly arranged on the walking bracket 1. The outer sides of the two fixed support sleeves 443 are fixedly connected with the walking bracket 1 through a supporting connecting rod 112. The second walking adjustment sleeve 431 is sleeved in the bearing arranged in the fixed support sleeve 443, and a positioning threaded hole is arranged on the fixed support sleeve 443, and a pressing bolt is arranged on the positioning threaded hole. The spacing adjustment sleeve 4421 can be adjusted left and right relative to the fixed support sleeve 443, and the spacing adjustment sleeve 4421 is fixed to the fixed support sleeve 443 by the pressing bolt. In practical applications,By adjusting the position of the spacing adjustment sleeve 4421 on the fixed support sleeve 443, the spacing adjustment of the two second walking wheels 441 is achieved.

[0034] On the basis of the above-mentioned embodiment, the specific implementation method of the handlebar 3 to realize rotation and swing adjustment is as follows: a connecting seat 31 is rotatably arranged above the support seat 41. The technical solution for realizing the rotation setting of the connecting seat 31 on the support seat 41 is a commonly used technical means in this field, so it is not described in detail here. The rear end of the handlebar 3 is hingedly connected to the connecting seat 31. Specifically, the rear end of the handlebar 3 adopts a rotating shaft to realize the hinge connection with the upper rear part of the connecting seat 31, and the up and down swing adjustment of the handlebar 3 is realized by the support of the rotating shaft. A first telescopic positioning pin 311 is vertically arranged on the connecting seat 31, and a plurality of first positioning holes distributed at equal intervals along the circumference of the rotation center of the connecting seat 31 are arranged on the support seat 41. When the movable end of the first telescopic positioning pin 311 is inserted into the first positioning hole, the connecting seat 3 is realized. 1, thereby realizing the rotation limit of the handrail 3, the handrail 3 can be rotated, which is convenient for changing the direction of the handrail 3 according to actual needs in actual applications, thereby realizing the convenient auxiliary driving control of the utility model, a support plate 312 is arranged on the upper part of the connecting seat 31, a second telescopic positioning pin 313 is obliquely arranged on the support plate 312, an arc plate 314 opposite to the second telescopic positioning pin 313 is arranged at the lower part of the handrail 3, and a plurality of second positioning holes distributed at equal intervals along the circumference of the up and down swinging rotation center of the handrail 3 are arranged on the arc plate 314, when the movable end of the second telescopic positioning pin 313 is inserted into the second positioning hole, the up and down swing limit of the handrail 3 is realized, the handrail 3 can be swung up and down for positioning, so that the handrail 3 can meet the operation needs of operators of different heights.

[0035] In the present utility model, "upper", "lower", "front", "back", "left" and "right" are relative positions used to conveniently describe positional relationships, and therefore cannot be understood as absolute positions to limit the scope of protection.

[0036] Except for the technical features described in the specification, all other technical features are known technologies to those skilled in the art.

[0037] The above description in combination with the accompanying drawings has detailed the preferred implementation modes and embodiments of the utility model, but the utility model is not limited to the above implementation modes and embodiments. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the concept of the utility model, and these improvements and modifications should also be regarded as the protection scope of the utility model.

Claims

1. A self-propelled tobacco ridge digging machine, comprising a walking frame, a gasoline engine, and a handle, characterized in that: The pond digging machine also includes a travel gearbox, a pond digging bracket, a pond digging gearbox, a connecting rod mechanism, a pond digging rod, and a pond digging shovel. The gasoline engine and the travel gearbox are fixedly arranged on the travel bracket, and a travel mechanism is arranged at the lower part of the travel bracket. The gasoline engine can provide power for the travel gearbox, and the travel gearbox can drive the travel mechanism. A support seat is arranged on the upper part of the travel gearbox, one end of the handrail is arranged on the support seat, and the handrail can be rotated, adjusted and positioned relative to the support seat. The front end of the pond digging bracket is connected to the rear of the walking bracket in a detachable manner, and a depth adjusting wheel is arranged on both sides of the rear of the pond digging bracket. The pond digging gearbox is arranged on the pond digging bracket, and the gasoline engine can provide power for the pond digging gearbox. The front end of the pond digging rod is hingedly connected to one side of the pond digging bracket, and the pond digging gearbox can realize the up and down reciprocating swing of the rear end of the pond digging rod by driving the connecting rod mechanism, and the pond digging shovel is arranged at the rear end of the pond digging rod.

2. A self-propelled tobacco ridge-making machine according to claim 1, characterized in that A first pulley is arranged on the power output shaft of the gasoline engine, a second pulley and a first sprocket are arranged on the power input shaft of the travel gearbox, a second sprocket is arranged on the power input shaft of the driving gearbox, a transmission belt is sleeved between the first pulley and the second pulley, and a transmission chain is sleeved between the first sprocket and the second sprocket.

3. A self-propelled tobacco ridge-making machine according to claim 2, characterized in that: The connecting rod mechanism includes a crank and a transmission connecting rod. One end of the crank is fixedly connected to the power output shaft of the digging gearbox, one end of the transmission connecting rod is hingedly connected to the other end of the crank, and the other end of the transmission connecting rod is hingedly connected to the middle and rear part of the digging rod.

4. A self-propelled tobacco ridge-making machine according to claim 3, characterized in that A first supporting cross bar is arranged at the rear end of the pond digging pole, and a first transverse sleeve is sleeved on the first supporting cross bar. The first transverse sleeve can be adjusted left and right and positioned on the first supporting cross bar. A first vertical sleeve is fixedly arranged on the first transverse sleeve. The first adjusting vertical rod arranged on the upper part of the pond digging shovel is sleeved in the first vertical sleeve. The first adjusting vertical rod can be adjusted and positioned relative to the first vertical sleeve.

5. A self-propelled tobacco ridge-making machine according to claim 4, characterized in that A second supporting transverse tube is arranged at the rear of the pond-digging bracket, and a T-shaped connecting piece is sleeved on both ends of the second supporting transverse tube. The T-shaped connecting piece can be adjusted left and right and positioned on the second supporting transverse tube. The second adjusting vertical rod arranged on the upper part of the depth adjusting wheel is sleeved on the T-shaped connecting piece, and the second adjusting vertical rod can be adjusted up and down and positioned relative to the T-shaped connecting piece.

6. A self-propelled tobacco ridge-making machine according to claim 5, characterized in that A first U-shaped slot is arranged at the rear of the walking bracket, and a second U-shaped slot which can be inserted into the first U-shaped slot is arranged at the front of the digging bracket. The first U-shaped slot and the second U-shaped slot are provided with a plurality of corresponding through holes. A pin is used to penetrate the corresponding through holes above and below the first U-shaped slot and the second U-shaped slot to realize the connection between the first U-shaped slot and the second U-shaped slot.

7. A self-propelled tobacco ridge-making machine according to claim 6, characterized in that A first travel power output shaft is arranged at the bottom of the travel gearbox, and a first travel adjustment sleeve capable of adjustment and positioning is arranged at both ends of the first travel power output shaft. The travel mechanism includes two first travel wheels, and a first travel wheel is fixedly arranged at the outer end of the first travel adjustment sleeve.

8. A self-propelled tobacco ridge-making machine according to claim 6, characterized in that A second travel power output shaft is arranged at the bottom of the travel gearbox, and a second travel adjustment sleeve that can be adjusted and positioned is arranged at both ends of the second travel power output shaft. The travel mechanism includes two groups of travel components, each group of the travel components includes a transmission chain, a second travel wheel, and two transmission protective covers, the two transmission protective covers are relatively fixedly connected, and an upper sprocket and a lower sprocket distributed up and down are rotatably arranged inside the two transmission protective covers, the transmission chain is sleeved on the upper sprocket and the lower sprocket, the second travel wheel is sleeved on the first supporting rotating shaft sleeved in the lower sprocket, the second travel adjustment sleeve is sleeved in the upper sprocket, and the second travel adjustment sleeve can drive the upper sprocket to rotate, and a spacing adjustment sleeve is fixedly arranged on the outer side of the upper part of the transmission protective cover close to the second travel power output shaft, and the second travel adjustment sleeve can rotate freely relative to the spacing adjustment sleeve, and the spacing adjustment sleeve is sleeved on a fixed support sleeve fixedly arranged on the travel bracket.

9. A self-propelled tobacco ridge-making machine according to claim 7 or 8, characterized in that A connecting seat is rotatably arranged above the support seat, and the rear end of the handrail is hingedly connected to the connecting seat, and a first telescopic positioning pin is vertically arranged on the connecting seat, and a plurality of first positioning holes distributed at equal intervals along the circumference of the rotation center of the connecting seat are arranged on the support seat. When the movable end of the first telescopic positioning pin is inserted into the first positioning hole, the rotation limit of the connecting seat is realized, a support plate is arranged on the upper part of the connecting seat, and a second telescopic positioning pin is obliquely arranged on the support plate, and an arc plate opposite to the second telescopic positioning pin is arranged on the lower part of the handrail, and a plurality of second positioning holes distributed at equal intervals along the circumference of the up and down swinging rotation center of the handrail are arranged on the arc plate. When the movable end of the second telescopic positioning pin is inserted into the second positioning hole, the up and down swing limit of the handrail is realized.

10. A self-propelled tobacco ridge-making machine according to claim 9, characterized in that: The travel gearbox has two speed gears, and the pond-digging gearbox has three speed gears.

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