Rubbing machine for small excavator

Abstract

The rubbing machine for the small excavator comprises a shell and a support connected to the shell, a rolling shaft is arranged on the support in a rotating mode, a plurality of fixing pieces are coaxially arranged on the rolling shaft, tool bit structures are fixed to the fixing pieces, the rolling shaft is connected with a plunger motor, a hanging frame is fixed to the top end of the shell, and the hanging frame is connected with the plunger motor. And the suspension bracket is fixedly connected with the mini-excavator. The fixing piece is in an arc shape, and a tool bit structure is fixed to the end of the fixing piece. According to the rubbing machine for the small-sized excavator, the rubbing machine can be matched with the small-sized excavator, one person can complete a series of work such as farm cleaning, orchard arrangement, efficient forestry coverage and environment protection, the use scene of the small-sized excavator is greatly improved, efficiency is improved, and the environment is protected; and more use possibilities are created for customers, and spreading of a fire source and a living quarter can be blocked more quickly when a fire disaster occurs, so that an isolation belt is created.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of pioneer machine, concretely relates to a pioneer machine for small excavator. BACKGROUND

[0002] At present, under the international environment, pioneer machine is mainly adapted to large and medium-sized excavator and skid steer loader, along with the increasing global demand, more and more foreign families have equipped small excavators, and many families have their own farms, orchards, home gardens and the like, people often use their own excavators, lawn mowers or pioneer machines to manage their own farms and orchards, however, the cost of excavator is high, the efficiency of lawn mower is low, and the pioneer machine is generally adapted to medium and large excavators, which has large weight and volume, and small rotating diameter, and is not suitable for agricultural reclamation operation in family.

[0003] At present, small excavators of 2-5 tons have entered thousands of families abroad and become an important customer group, therefore, how to adapt the pioneer machine to the small excavator becomes a technical problem to be solved in the present application. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a pioneer machine for small excavator, which solves the technical problem of how to adapt the pioneer machine to the small excavator, can meet the needs of one person to complete a series of work such as cleaning the farm, arranging the orchard, realizing efficient forestry coverage and protecting the environment, greatly improves the use scene of the small excavator, improves the efficiency, protects the environment, creates more use possibilities for customers, and can block the spread of fire source and living area faster when fire occurs, and creates an isolation belt.

[0005] A pioneer machine for small excavator, comprising a shell, a support connected to the shell, a roller shaft rotatably arranged on the support, a plurality of fixing pieces coaxially arranged on the roller shaft, a cutter head structure fixed on the fixing pieces, the roller shaft being connected with a plunger motor, a suspension frame fixed at the top end of the shell, and the suspension frame being fixedly connected with the small excavator.

[0006] The fixing pieces are in the shape of circular arc, and the end of the fixing pieces is fixed with the cutter head structure.

[0007] The cutter head structure comprises a positioning part clamped on the fixing piece and a cutter head body fixedly connected with the positioning part through a tension bolt, and the cutter head body is provided with an outward protruding blade-shaped cutting edge.

[0008] A plurality of said cutter head structures are arranged in a circular array around the center of the roller and outside the roller, and adjacent two said cutter head structures are arranged with a spacing along the length direction of the roller, so that a plurality of said cutter head structures are arranged in a spiral along the length direction of the roller.

[0009] The outer side of the plunger motor is provided with a motor protective cover.

[0010] The shell comprises a shell body, a left slide plate and a right slide plate fixed at two ends of the shell body by bolts, and a back plate connected to the shell body by bolts, the left slide plate and the right slide plate abut against the ground, the back plate is rotationally connected to the shell body by a hinge structure, and the bolts pass through limiting strip holes provided on the shell body.

[0011] One end of the roller is connected to the support through a roller transmission assembly, and the roller transmission assembly is provided with an injection oil cup.

[0012] The plunger motor is connected with a hydraulic valve group, and the hydraulic valve group is connected to a small excavator through a plurality of oil inlet pipes.

[0013] The hydraulic valve group comprises a one-way valve, a digger oil inlet and a motor oil inlet connected to two sides of the one-way valve, an overflow valve, a digger oil outlet and a motor oil outlet connected to two sides of the overflow valve.

[0014] The digger oil inlet is connected with the motor oil inlet, and the digger oil outlet is connected with the motor oil outlet.

[0015] The cutter head structure comprises a positioning part clamped on the fixing plate and a cutter head body fixedly connected with the positioning part through a tension bolt, and the cutter head body is provided with an outward protruding square blade.

[0016] The beneficial effects of the utility model are as follows:

[0017] (1) The utility model solves the technical problem that foreign farmers, orchard owners and families with gardens have small excavators, but cannot use the small excavators to manage their own farms and orchards, fully utilizes the function of the small excavator, and is high in efficiency and low in cost.

[0018] (2) The roller rotates at a high speed of about 2500 rpm, and the high rotation and sharp cutter head structure are used for cutting and crushing work of shrubs and trees below 11CM.

[0019] The tree is cut off at the waist by the lifting of the excavator arm, the remaining tree is completely ground from top to bottom, the cut-off tree can be broken on the ground, and the wood chips are covered on the land, so that a series of complex and time-consuming work such as felling, cutting, transporting and crushing is fundamentally solved.

[0020] (3) The total weight of the auxiliary tool is not more than 220KG, and the perfect cooperation with the small excavator is completed, so that the work can be well completed and the stability of the small excavator during work can be ensured.

[0021] (4) The arrangement mode of the cutter head structure adopts an asymmetric design, so that the user can maximize the contact between the teeth and the tree during use, and the performance of the product is maximized.

[0022] (5) The scheme combines the cooperation of the motor direct drive and the hydraulic valve group, since the motor direct drive must ensure the concentricity of the roller shaft and the safety of the motor, therefore, under the action of the hydraulic valve group, the functions of protecting the motor and ensuring that the connecting spline is not damaged under the premise of strong force when the equipment stops are realized.

[0023] (6) The hydraulic valve group in the scheme comprises a check valve, an overflow valve and other safety valve combinations, can play a pressure relief role when the equipment works under instantaneous high pressure, and can prevent the motor from being damaged or reducing the service life of the motor when the equipment stops. When the equipment stops, the oil in the motor is circulated through the hydraulic valve group until the motor stops stably. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a whole structure schematic view of the pioneer machine in embodiment 1 of the utility model.

[0025] Figure 2 It is a front view of the pioneer machine in embodiment 1 of the utility model.

[0026] Figure 3 It is a left view of the pioneer machine in embodiment 1 of the utility model.

[0027] Figure 4 It is a rear view of the pioneer machine in embodiment 1 of the utility model.

[0028] Figure 5 It is an internal structure schematic view of the pioneer machine in embodiment 1 of the utility model.

[0029] Figure 6 It is a connection structure schematic view of the roller shaft and the cutter head structure in embodiment 1 of the utility model Figure 1 .

[0030] Figure 7 It is a connection structure schematic view of the roller shaft and the cutter head structure in embodiment 1 of the utility modelFigure 2 .

[0031] Figure 8 It is the connection structure schematic view of fixed sheet and cutter head structure in the utility model embodiment 1.

[0032] Figure 9 It is the connection structure schematic view of fixed sheet and cutter head structure in the utility model embodiment 2.

[0033] Figure 10 It is the structure schematic view of hydraulic valve group in the utility model embodiment 1 and 2.

[0034] Figure 11 It is the overall structure schematic view of pioneer machine in the utility model embodiment 3.

[0035] In the drawing, 1, shell, 2, left slide plate, 3, bolt one, 4, roller, 5, fixed sheet, 6, right slide plate, 7, suspension frame, 71, pin shaft, 8, bolt two, 81, limit strip hole, 9, bolt three, 10, cutter head structure, 101, positioning part, 102, cutter head body, 103, tension bolt, 104, blade-shaped cutting edge, 12, pressure injection oil cup, 13, roller transmission assembly, 14, back plate, 15, hinge structure, 18, hydraulic valve group, 181, excavator check valve, 182, excavator oil inlet, 183, excavator oil outlet, 184, motor overflow valve, 185, motor oil inlet, 186, motor oil outlet, 19, screw, 21, motor protection cover, 22, plunger motor. DETAILED DESCRIPTION

[0036] In order to more clearly illustrate the technical features of the scheme, the following through specific implementation, the scheme is described. EMBODIMENT

[0037] Referring to Figures 1-8 A kind of pioneer machine for small excavator, including shell 1, support connected on shell 1, roller 4 is rotationally arranged on support, multiple fixed sheets 5 are coaxially arranged on roller 4, cutter head structure 10 is fixed on fixed sheet 5, roller 4 is connected with plunger motor 22, the top of shell 1 is fixed with suspension frame 7 by bolt three 9, suspension frame 7 is fixedly connected with small excavator.

[0038] Fixed sheet 5 is circular arc shape, and the end of fixed sheet 5 is fixed with cutter head structure 10.

[0039] Cutter head structure 10 includes positioning part 101 clamped on fixed sheet 5, cutter head body 102 fixedly connected with positioning part 101 by tension bolt 103, and blade-shaped cutting edge 104 is provided on cutter head body 102 and protrudes outward.

[0040] A plurality of cutter head structures 10 are arranged in a circular array outside the roller shaft 4 around the center of the roller shaft 4, and two adjacent cutter head structures 10 are arranged with a spacing along the length direction of the roller shaft 4, so that the plurality of cutter head structures 10 are arranged in a spiral along the length direction of the roller shaft 4.

[0041] The outer side of the plunger motor 22 is provided with a motor protection cover 21.

[0042] The shell 1 comprises a shell body, a left slide plate 2 and a right slide plate 6 fixed on both ends of the shell body through bolts I 3, a back plate 14 connected to the shell body through bolts II 8, the left slide plate 2 and the right slide plate 6 abut against the ground, the back plate 14 is rotationally connected to the shell body through a hinge structure 15, and the bolts II 8 pass through limiting strip holes 81 provided on the shell body.

[0043] One end of the roller shaft 4 is connected to the support through a roller transmission assembly 13, and the roller transmission assembly 13 is provided with a pressure injection oil cup 12.

[0044] The plunger motor 22 is connected with a hydraulic valve group 18, the hydraulic valve group 18 is connected to the small excavator through a plurality of oil inlet pipes, and the hydraulic valve group 18 is fixed on the shell 1 through screws 19.

[0045] The hydraulic valve group 18 comprises a one-way valve 181, a digger oil inlet 182 and a motor oil inlet 185 connected to both sides of the one-way valve 181, an overflow valve 184, a motor oil outlet 186 and a digger oil outlet 183 connected to both sides of the overflow valve 184.

[0046] The digger oil inlet 182 is connected with the motor oil inlet 185, the digger oil outlet 183 is connected with the motor oil outlet 186, and the motor oil outlet 186 is connected with the overflow valve 184.

[0047] The specific working process of the utility model is as follows:

[0048] The utility model discloses a kind of small excavators, which can be used to solve the problem of foreign farmers, orchard owners and self-garden owners, etc.

[0049] The utility model provides hydraulic power, drives plunger motor 22 to drive roller shaft 4 to rotate and complete the breaking and covering work of trees;First, the suspension frame 7 is connected to the front end of the small arm of the small excavator through the pin shaft 71, and the three oil inlet pipes of the pioneer machine are connected to the small excavator, the small excavator supplies oil to the pioneer machine through the three oil inlet pipes, realizes the oil inlet, oil outlet and oil return of plunger motor 22.

[0050] After the small excavator starts, the oil door supplies oil to the oil inlet pipe of the pioneer machine, the oil inlet pipe is connected with the oil inlet of the plunger motor 22, the motor rotates to drive the motor to rotate, and the motor rotation drives the roller shaft 4 to rotate through the spline connection.

[0051] The roller shaft 4 rotates at a high speed of about 2500 rpm, and the high speed and sharp teeth are used to cut and crush shrubs and trees below 11 cm.

[0052] The small excavator arm can be lifted to cut off the trees at the waist, and the remaining trees can be completely ground from top to bottom. The cut trees can be crushed on the ground, and the sawdust can be covered on the land, which fundamentally solves the complex and time-consuming work of cutting, logging, transportation and crushing.

[0053] The total weight of the auxiliary tool is not more than 220 kg, which perfectly matches the small excavator, can well complete the work, and can ensure the stability of the small excavator during work; the plunger motor 22 is adopted, which has the characteristics of high efficiency, high speed and large torque; the motor direct drive mode is adopted, and the concentricity of the roller shaft 4 and the safety of the motor must be ensured, so that the hydraulic valve group 18 can protect the motor and ensure that the connection spline will not be damaged under the premise of strong force when stopping.

[0054] Referring to Figure 10 , the hydraulic valve group 18 includes a one-way valve 181, a motor overflow valve 184 and other safety valve groups, which can relieve pressure when the equipment works under instantaneous high pressure, and can avoid sudden stop, damage to the motor or reduction of the service life of the motor when the equipment stops. When the equipment stops, the oil in the plunger motor 22 will be circulated through the hydraulic valve group 18 until the motor stops smoothly; specifically, when the equipment stops, the plunger motor 22 stops working, the overflow valve 184 opens, and the oil in the plunger motor 22 is circulated through the motor oil outlet 186, the overflow valve 184 and the motor oil inlet 186 in sequence; when the equipment starts, the plunger motor 22 starts working, and the overflow valve 184 is closed. Only when the equipment has superhigh pressure, the overflow valve opens again to release excess pressure by shunting, and the excavator multi-way valve injects oil into the excavator oil inlet 182, and the oil is circulated through the one-way valve 181, the motor oil inlet 185, the motor oil outlet 186, the excavator oil outlet 183 in sequence.

[0055] Finally, the cutter head structure 10 adopts an asymmetric design scheme, which facilitates the user to maximize the contact between the teeth and the trees during use, and maximizes the performance of the product. Embodiment

[0056] Referring to Figure 9The cutter head structure 10 comprises a positioning part 101 clamped on the fixing sheet 5, a cutter head body 102 fixedly connected with the positioning part 101 through a pull bolt 103, and a square cutting edge protruding outwardly arranged on the cutter head body 102. Embodiment

[0057] Reference Figure 11 In this embodiment 3, the pin shaft 71 on the hanger 7 is in a horizontal state.

[0058] The technical features not described in the utility model can be realized by or using the prior art, which will not be described here again, of course, the above description is not a limitation of the utility model, the utility model is also not limited to the above examples, the changes, modifications, additions or replacements made by the ordinary skilled in the art within the essential scope of the utility model should also belong to the protection scope of the utility model.

Claims

1. A pioneer for a small excavator comprising a housing (1), a bracket connected to the housing (1), characterized in that, The support is provided with a roller shaft (4) rotatingly arranged thereon, a plurality of fixing pieces (5) are coaxially arranged on the roller shaft (4), a cutter head structure (10) is fixed on the fixing pieces (5), the roller shaft (4) is connected with a plunger motor (22), and the top end of the shell (1) is fixed with a suspension frame (7) which is fixedly connected with a small excavator.

2. A pioneer for a small excavator according to claim 1, characterized in that The fixing piece (5) is in a circular arc shape, and the end of the fixing piece (5) is fixed with the cutter head structure (10).

3. A pioneer for a small excavator according to claim 2, characterized in that The cutter head structure (10) comprises a positioning portion (101) clamped on the fixing piece (5), a cutter head body (102) fixedly connected with the positioning portion (101) through a pull bolt (103), and an outward protruding blade-shaped cutting edge (104) arranged on the cutter head body (102).

4. The pioneer for a small excavator according to claim 2, characterized in that, A plurality of the cutter head structures (10) are arranged in a circular ring array outside the roller shaft (4) around the center of the roller shaft (4), and adjacent two cutter head structures (10) are arranged with a spacing along the length direction of the roller shaft (4), so that the plurality of cutter head structures (10) are arranged in a spiral shape along the length direction of the roller shaft (4).

5. The pioneer for a small excavator according to claim 2, characterized in that, The outer side of the plunger motor (22) is provided with a motor protection cover (21).

6. A pioneer for a small excavator according to claim 2, characterized in that, The shell (1) comprises a shell body, a left slide plate (2) and a right slide plate (6) fixed on both ends of the shell body through bolts (3), and a back plate (14) connected on the shell body through bolts (8), the left slide plate (2) and the right slide plate (6) abut against the ground, the back plate (14) is rotationally connected on the shell body through a hinge structure (15), and the bolts (8) pass through limiting strip holes (81) arranged on the shell body.

7. The pioneer for a small excavator according to claim 2, characterized in that, One end of the roller shaft (4) is connected on the support through a roller transmission assembly (13), and the roller transmission assembly (13) is provided with a pressure injection oil cup (12).

8. A pioneer for a small excavator according to claim 5, characterized in that, The plunger motor (22) is connected with a hydraulic valve group (18), and the hydraulic valve group (18) is connected on the small excavator through a plurality of oil inlet pipes.

9. A pioneer for a small excavator according to claim 8, characterized in that The hydraulic valve group (18) comprises a one-way valve (181), an excavator oil inlet (182) and a motor oil inlet (185) connected on both sides of the one-way valve (181), an overflow valve (184), a motor oil outlet (186) and an excavator oil outlet (183) connected on both sides of the overflow valve (184). The excavator oil inlet (182) and the motor oil inlet (185) are connected, the excavator oil outlet (183) and the motor oil outlet (186) are connected, and the motor oil outlet (186) is connected with the overflow valve (184).

10. The pioneer for a small excavator according to claim 2, characterized by The cutter head structure (10) comprises a positioning portion (101) clamped on the fixing piece (5), a cutter head body (102) fixedly connected with the positioning portion (101) through a pull bolt (103), and an outward protruding square cutting edge arranged on the cutter head body (102).

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