CN210507571U

CN210507571U - Multifunctional small excavator easy to operate

Info

Publication number: CN210507571U
Application number: CN201920988755.5U
Authority: CN
Inventors: 沙肃君
Original assignee: Ningbo Yinzhou Chuangxin Construction Machinery Co ltd
Current assignee: Ningbo Yinzhou Chuangxin Construction Machinery Co ltd
Priority date: 2019-06-27
Filing date: 2019-06-27
Publication date: 2020-05-12
Anticipated expiration: 2029-06-27

Abstract

The utility model discloses an easy-to-operate multifunctional small excavator, including bearing frame and walking chassis, bearing frame connects the upper portion on walking chassis, be equipped with seat, operating means, push shovel, arm, engine and hydraulic system on the bearing frame, removable functional accessories that are equipped with on the arm, operating means, push shovel, arm and functional accessories all are connected with hydraulic system oil pressure, operating means includes installation box, switching-over valve, a plurality of operating handles, pedal control assembly and reserve oil circuit, reserve oil circuit is pre-installed on the arm of machinery, and the reserve oil circuit is connected with the corresponding oil outlet on the switching-over valve; the foot-operated control assembly is connected with a spare oil path valve core which is arranged on the reversing valve and used for controlling the on-off of a spare oil path. The utility model discloses a multi-functional small-size machine of digging of easy operation, the operation panel is simple, and operating handle is few, a plurality of function control mechanism mutual independence, and during operation convenient operation just is difficult for taking place the maloperation.

Description

Multifunctional small excavator easy to operate

Technical Field

The utility model belongs to the technical field of the excavator technique and specifically relates to an easy multi-functional small-size machine of digging.

Background

With the change of construction conditions and environments, more and more small excavators are demanded by the market. The small excavator has multiple action functions, such as breaking stone, digging, shoveling soil and drilling, the corresponding mechanisms of a breaking hammer, a bucket, a push shovel, drilling and the like are generally powered by a hydraulic system, a control platform is generally arranged on an excavator main body, and a multi-station reversing valve and a plurality of operating handles are arranged on the control platform. The operating handles are respectively used for operating the advancing and retreating of the excavator, the operation of the push shovel, the operation of the mechanical arm, and the actions of functional parts such as stone breaking, drilling and the like.

In the excavator structure in the prior art, various operating handles are arranged at positions right above an operating platform, but the arrangement mode causes excessive handles distributed on the operating platform surface, and corresponding interference exists among the handles, so that an operator is inconvenient to operate and the possibility of misoperation occurs; in addition, the area of the operating table top is inevitably increased by the more operating handles, so that the cost is increased, the weight of the vehicle body is increased, and the method is contradictory to the lightweight design theory of the modern society.

Therefore, the small excavator which can be provided with a more simplified operation table top and is convenient for personnel to operate and can also keep the original multifunctional operation is urgent to develop and use.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: in order to overcome the defects of the prior art, the small excavator with the operating platform provided with few operating handles, a plurality of function control mechanisms which are mutually independent is convenient to operate during working and is not easy to cause misoperation is provided.

The utility model adopts the technical proposal that: the multifunctional small excavator easy to operate comprises a bearing frame and a walking chassis, wherein the bearing frame is connected to the upper part of the walking chassis, the bearing frame is provided with a seat, an operating device, a push shovel and a mechanical arm, the end part of the mechanical arm is detachably provided with a functional accessory, the bearing frame is also provided with an engine and a hydraulic system, the operating device, the push shovel, the mechanical arm and the functional accessory are all in oil pressure connection with the hydraulic system, the operating device comprises an installation box body, a reversing valve and a plurality of operating handles, the operating device further comprises a pedal control assembly and a standby oil way, the standby oil way is preassembled on the mechanical arm, and the standby oil way is connected with a corresponding oil outlet end on the reversing valve; the foot-operated control assembly is connected with a spare oil path valve core which is arranged on the reversing valve and used for controlling the on-off of a spare oil path.

Compared with the prior art, the utility model has the following advantage:

the utility model discloses an among the small-size quick-witted structure of digging, operating means among the prior art has improved, has changed pedal control assembly structure with the operating handle of some functional module's operating device from the operation platen, has reduced the operating handle quantity on the control table face, convenient operation to the probability of taking place the maloperation has been reduced, and can reduce the panel area on whole operating means's the installation box, in order to reach lightweight requirement.

As an improvement, the pedal control assembly comprises a pedal, a connecting shaft and a driving rod, and the connecting shaft and the driving rod are vertically arranged; one end of the connecting shaft is rotatably arranged in the inner cavity of the mounting box body in a penetrating way and is connected with one end of the driving rod, and the other end of the driving rod is connected with the spare oil circuit valve core; the pedal is arranged at one end, located outside the installation box body, of the connecting shaft.

And the other end of the driving block is hinged with one end of the driving rod far away from the spare oil way valve core.

Preferably, the number of the driving blocks is two, and the two driving blocks are assembled on the connecting shaft in parallel; one end of the driving rod is assembled between the two driving blocks. The driving cylinder is arranged between the two driving blocks, the connecting structure is firmer and more stable, and the driving is more accurate.

And the improved structure is characterized in that the side wall of the mounting box body is provided with a guide sleeve, and the connecting shaft is arranged in the guide sleeve in a penetrating manner. The uide bushing has direction, spacing effect for the pivot of connecting axle is more stable.

And in the improvement, bearings are arranged at two ends of the inner cavity of the guide sleeve, and the connecting shaft is arranged in the bearings. After the bearing is added, the connecting shaft can rotate more smoothly and stably without jamming.

Preferably, the functional accessory is one of a bucket functional module, a breaking hammer functional module, an auger functional module and a milling and excavating machine functional module; and when the functional accessory is a breaking hammer functional module or an auger functional module or a milling and excavating machine functional module, the spare oil way is connected with the oil pressure of a driver inside the spare oil way.

And the lower end of the push shovel operating handle is connected with a steel wire inhaul cable, and the steel wire inhaul cable is connected with a valve core on the reversing valve, and is used for controlling a push shovel operating oil circuit. The operating handle installed on the operating device is further refitted to the installation panel on the side edge of the seat, the number of the operating handles on the table surface of the installation box body is reduced again, operation is convenient, and misoperation is not easy to occur.

And the bearing frame is provided with an oil temperature radiator, and the oil temperature radiator corresponds to an air outlet of the engine. The air outlet of the engine is directly utilized to increase the heat dissipation effect of the oil temperature radiator, a fan is not required to be additionally added, the heat dissipation is accelerated by utilizing the existing components, the structure is simple, and the cost is low.

As an improvement, an oil temperature display instrument, an oil quantity display instrument, a timing instrument and an illuminating lamp switch are further arranged at the upper end of the mounting box body in front of the seat. The upper end of the mounting box body is provided with a plurality of corresponding instrument panels, so that the operating conditions of the excavator, the oil temperature, the residual oil quantity and other parameters can be visually seen in the operation process.

Drawings

Fig. 1 is a schematic structural diagram of the multifunctional small excavator easy to operate.

Fig. 2 is a schematic structural view of the multifunctional small excavator, which is easy to operate, from another angle.

Fig. 3 is a schematic structural view of the multifunctional small excavator, which is easy to operate, from another angle. (delete seat, main display foot control Assembly construction)

Fig. 4 is an exploded view of the foot control assembly of the present invention.

The hydraulic oil-temperature-control hydraulic shovel comprises a bearing frame 1, a walking chassis 2, a seat 3, a push shovel 4, a mechanical arm 5, an engine 6, a mounting box 7, a reversing valve 8, an operating handle 9, a pedal 10, a connecting shaft 11, a first step shaft 11.1, a second step shaft 11.2, a driving rod 12, a connecting through hole 12.1, a driving block 13, a mounting hole 13.1, a threaded hole 13.2, a guide sleeve 14, a bearing 15, a mounting panel 16, a push shovel operating handle 17, an oil-temperature radiator 18, a locking nut 19 and a connecting bolt 20, wherein the hydraulic oil-temperature-control hydraulic shovel is connected with the mounting plate through the connecting through hole 13.1

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "attached" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, for the sake of distinguishing one from another.

As shown in fig. 1 and 2, the utility model provides a multi-functional small-size machine of digging of easy operation, including bearing frame 1 and walking chassis 2, bearing frame 1 connects on the upper portion of walking chassis 2, bears to be equipped with seat 3 on the frame 1, operating means, pushes away shovel 4 and arm 5, and the removable functional attachment that is equipped with of tip of arm 5 bears still to be equipped with engine 6 and hydraulic system on the frame 1, and operating means, push away shovel 4, arm 5 and functional attachment all are connected with hydraulic system oil pressure. Specifically, the hydraulic system includes a hydraulic pump whose power input shaft is connected to the power output shaft of the engine 6, and multiple control oil paths that are respectively connected to the hydraulic pressure of the corresponding operating hydraulic components. A corresponding hydraulic drive motor is arranged on the walking chassis 2 and is used for driving the whole excavator to move forwards and backwards; and the hydraulic drive motor is hydraulically connected with the operating device and the hydraulic system.

Furthermore, the operating device comprises an installation box body 7, a reversing valve 8 and a plurality of operating handles 9, wherein the operating handles 9 are respectively connected with valve cores which are arranged on the reversing valve 8 and used for controlling the excavator to move forwards and backwards, the movement of the mechanical arm 5 and the like and used for switching on and off oil paths of acting elements. That is, the forward and backward movement of the excavator or the movement of the robot arm 5 can be realized by operating the corresponding operation handle 9.

The operating device also comprises a foot control assembly and a spare oil path, wherein the spare oil path is preassembled on the mechanical arm 5 and is connected with the corresponding oil outlet end on the reversing valve 8; the foot control assembly is connected with a spare oil path valve core which is arranged on the reversing valve 8 and used for controlling the on-off of a spare oil path. Specifically, the functional accessories in the mechanism are one of a bucket functional module, a breaking hammer functional module, an auger functional module and a milling and excavating machine functional module, when the mechanism is used specifically, one functional module is selected to be installed according to actual requirements, and the functional module can be replaced at any time along with requirements of different working conditions.

More specifically, when the functional accessory is a bucket functional module, a valve core of an oil path for controlling the bucket action on the reversing valve 8 is connected with a corresponding operating handle 9 on the operating platform. When the functional accessory is a breaking hammer functional module, an auger functional module or a milling and excavating machine functional module, a spare oil path pre-installed on the mechanical arm 5 is in oil pressure connection with a driver inside the spare oil path. In this structure, realize that can not the function module adopts different control structure to control element not only distributes on the operation panel, has simplified the operating handle 9 of the numerous operation panel surface.

The pedal control assembly comprises a pedal 10, a connecting shaft 11 and a driving rod 12, and the connecting shaft 11 and the driving rod 12 are vertically arranged; one end of the connecting shaft 11 is rotatably arranged in the inner cavity of the mounting box body 7 in a penetrating way and is connected with one end of the driving rod 12, and the other end of the driving rod 12 is connected with the spare oil circuit valve core; a pedal 10 is provided at one end of the connecting shaft 11 located outside the mounting case 7.

As shown in fig. 4, one end of the connecting shaft 11 close to the driving rod 12 is provided with at least one driving block 13, and the other end of the driving block 13 is hinged to one end of the driving rod 12 far away from the spare oil path valve core. Preferably, the number of the driving blocks 13 is two, and the two driving blocks 13 are fitted on the connecting shaft 11 in parallel with each other, and the lower end of the driving rod 12 is fitted between the two driving blocks 13.

Specifically, a first step shaft 11.1 and a second step shaft 11.2 with two outer diameters are sequentially arranged at one end of the connecting shaft 11 close to the driving block 13, and an external thread section is arranged at the outer end part of the second step shaft 11.2; one end of two driving blocks 13 is equipped with respectively with first step axle 11.1, second step axle 11.2 matched with mounting hole 13.1 to after two driving blocks 13 suit respectively on two corresponding step axles, be connected with lock nut 19 in the outer end of second step axle 11.2. In addition, one end of the driving rod 12 close to the driving blocks 13 is provided with a connecting through hole 12.1, the other ends of the two driving blocks 13 are respectively provided with a threaded hole 13.2, when the lower end of the driving rod 12 is matched between the two driving blocks 13, the two threaded holes 13.2 and the connecting through hole 12.1 are positioned on the same straight line, then a connecting bolt 20 is inserted into the threaded hole 13.2 of one driving block 13, sequentially passes through the connecting through hole 12.1 until passing through the threaded hole 13.2 of the other driving block 13, and finally a locking nut 19 is connected to the outer end of the connecting bolt 20. The fixed connection between the connecting shaft 11 and the driving block 13 is realized, and the driving block 13 is hinged with the driving rod 12, so that when the pedal 10 is rotated in the front-back direction, the driving rod 12 is driven to move up and down, the valve core of the spare oil path is driven to move up and down, and the on-off of the spare oil path is controlled. Namely, the breaking hammer functional module or the auger functional module or the milling and excavating machine functional module can be controlled by stepping on the pedal 10, and the original action of the operating handle is replaced, so that the manual operation of an operator is simplified, and the misoperation caused by excessive operating handles 9 on the operating table surface is avoided.

The side wall of the installation box body 7 is provided with a guide sleeve 14, and the connecting shaft 11 is arranged in the guide sleeve 14 in a penetrating way. Preferably, bearings 15 are assembled at both ends of the inner cavity of the guide sleeve 14, and the connecting shaft 11 is assembled in the bearings 15. Specifically, the bearing 15 is a ball bearing.

As shown in fig. 2, in addition, in order to further simplify the space of the operating handle 9 on the operating panel, mounting panels 16 are provided on both sides of the seat 3, a blade operating handle 17 for controlling the blade 4 is provided on the mounting panel 16 on either side, and a wire cable is connected to the lower end of the blade operating handle 17 and connected to a spool of the directional valve 8 for controlling the operating oil path of the blade 4. That is, in this structure, the operating handle 17 for controlling the blade 4, which was originally provided on the operating floor, is further attached to the mounting panel 16 on the side of the seat 3. Therefore, at least two operating handles 9 are reduced on the original control console with a plurality of operating handles 9, the risk of misoperation of an operator is reduced, the area of the operating platform surface can be correspondingly reduced, the weight of the whole excavator is reduced, and the light weight is realized.

The bearing frame 1 is also provided with an oil temperature radiator 18 for radiating and cooling high-temperature oil in the hydraulic system, and the oil temperature radiator 18 corresponds to an air outlet of the engine 6. In the prior art structure, the oil temperature radiator 18 with a fan is usually installed, so that the cost is high, and the whole vehicle weight of the excavator is increased.

In the present embodiment, an oil temperature display meter, an oil amount display meter, a timer meter, and an illumination lamp switch are further provided at the upper end of the mounting case 7 in front of the seat 3. The operating personnel can also clearly see the working conditions of the small excavator in the operating process, namely the oil temperature condition, the residual fuel quantity condition, the working timing condition and the like. And the switch of the illuminating lamp on the excavator is also arranged on the mounting box body in front of the seat, so that the operation is convenient.

While the above is directed to the preferred embodiment of the present invention, it is not intended that it be limited, except as by the appended claims. The present invention is not limited to the above embodiments, and the specific structure thereof allows for changes, all the changes made within the protection scope of the independent claims of the present invention are within the protection scope of the present invention.

Claims

1. The utility model provides an easy multi-functional small-size machine of digging of operation, is including bearing frame (1) and walking chassis (2), bear frame (1) and connect the upper portion at walking chassis (2), bearing frame (1) on be equipped with seat (3), operating device, push away shovel (4) and arm (5), the removable functional attachment that is equipped with of tip of arm (5), still be equipped with engine (6) and hydraulic system on bearing frame (1), operating device, push away shovel (4), arm (5) and functional attachment all be connected with hydraulic system oil pressure, operating device including installation box (7), switching-over valve (8) and a plurality of operating handle (9), its characterized in that: the operating device also comprises a pedal control assembly and a spare oil path, wherein the spare oil path is pre-installed on the mechanical arm (5) and is connected with a corresponding oil outlet end on the reversing valve (8); the pedal control assembly is connected with a spare oil path valve core which is arranged on the reversing valve (8) and used for controlling the on-off of a spare oil path.

2. The portable multifunctional mini-excavator according to claim 1, wherein: the pedal control assembly comprises a pedal (10), a connecting shaft (11) and a driving rod (12), and the connecting shaft (11) and the driving rod (12) are vertically arranged; one end of the connecting shaft (11) is rotatably arranged in an inner cavity of the mounting box body (7) in a penetrating mode and is connected with one end of the driving rod (12), and the other end of the driving rod (12) is connected with the spare oil way valve core; the pedal (10) is arranged at one end, located outside the installation box body (7), of the connecting shaft (11).

3. The portable multifunctional mini-excavator according to claim 2, wherein: one end of the connecting shaft (11) close to the driving rod (12) is provided with at least one driving block (13), and the other end of the driving block (13) is hinged with one end of the driving rod (12) far away from the spare oil way valve core.

4. The portable multifunctional mini-excavator according to claim 3, wherein: the number of the driving blocks (13) is two, and the two driving blocks (13) are assembled on the connecting shaft (11) in parallel; one end of the driving rod (12) is assembled between the two driving blocks (13).

5. The portable multifunctional mini-excavator according to claim 2, wherein: the side wall of the installation box body (7) is provided with a guide sleeve (14), and the connecting shaft (11) is arranged in the guide sleeve (14) in a penetrating mode.

6. The portable multifunctional mini-excavator according to claim 5, wherein: and bearings (15) are assembled at two ends of the inner cavity of the guide sleeve (14), and the connecting shaft (11) is assembled in the bearings (15).

7. The portable multifunctional mini-excavator according to claim 1, wherein: the functional accessory is one of a bucket functional module, a breaking hammer functional module, an auger drilling functional module and a milling and excavating machine functional module; and when the functional accessory is a breaking hammer functional module or an auger functional module or a milling and excavating machine functional module, the spare oil way is connected with the oil pressure of a driver inside the spare oil way.

8. The portable multifunctional mini-excavator according to claim 1, wherein: the two sides of the seat (3) are provided with mounting panels (16), a push shovel operating handle (17) used for controlling the push shovel (4) is arranged on the mounting panel (16) on any one side, the lower end of the push shovel operating handle (17) is connected with a steel wire inhaul cable, and the steel wire inhaul cable is connected with a valve core used for controlling an oil path for operating the push shovel (4) on the reversing valve (8).

9. The portable multifunctional mini-excavator according to claim 1, wherein: the bearing frame (1) is provided with an oil temperature radiator (18), and the oil temperature radiator (18) corresponds to an air outlet of the engine (6).

10. The portable multifunctional mini-excavator according to claim 1, wherein: the upper end of the mounting box body (7) is positioned in front of the seat (3) and is also provided with an oil temperature display instrument, an oil quantity display instrument, a timing instrument and a lighting lamp switch.