Mining anti-explosion new-energy electric hydraulic excavator

Abstract

The utility model discloses a mining anti-explosion new energy electric hydraulic excavator, and belongs to the technical field of mining excavators. The lower frame of the machine type comprises a walking mechanism and a slewing bearing fixed on the walking mechanism, the upper vehicle frame comprises an upper vehicle platform and a cab installed on the upper vehicle platform, and the upper vehicle platform is fixed to the slewing bearing and can rotate by 360 degrees. The three-section arm working mechanism is fixed on the upper frame; the three-section arm working mechanism comprises a large arm, a middle arm and a small arm; the front end of the small arm is provided with a working machine tool; the middle arm is provided with a rotating oil cylinder used for controlling the small arm and the operation machine tool to rotate by + / -180 degrees. According to the utility model, the explosion-proof new energy battery pack is used as a power supply to provide power for the explosion-proof motor and the hydraulic pump, thereby being energy-saving and environment-friendly; the upper frame rotates by 360 degrees to be matched with a three-section arm mechanism with the middle arm rotating by + / -180 degrees, operation is flexible and convenient, construction dead angles are reduced, and construction efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of engineering machinery equipment relates to the design of a mining excavator, specifically a mining anti -explosion new energy electric hydraulic excavator. BACKGROUND

[0002] The conventional excavator working device usually adopts two-section arm or three-section arm form, and the large arm, the small arm and the middle arm can only perform up-down amplitude action, and the excavator often leaves construction dead angle during operation, and the operation range is limited;

[0003] In addition, the power of the excavator is generally supplied to the explosion-proof motor by the underground cable, or the vehicle-mounted diesel engine is used as power; when the cable is connected externally, a special person needs to be arranged behind the excavator to guard and drag the cable, which wastes manpower and has certain safety risk; and using diesel engine as power also has the disadvantages of high tail gas emission, high oil consumption, high maintenance cost and environmental pollution. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a mining anti -explosion new energy electric hydraulic excavator, which is used for expanding the operation range of the mining excavator, improving the construction efficiency and solving the problems of high pollution, high noise and high oil consumption of the underground equipment explosion-proof diesel engine.

[0005] The utility model adopts the following technical scheme: a mining anti -explosion new energy electric hydraulic excavator,

[0006] It comprises:

[0007] The lower frame comprises a walking mechanism and a slewing bearing fixed on the walking mechanism;

[0008] The upper frame comprises an upper vehicle platform and a cab installed on the upper vehicle platform; the upper frame is installed on the slewing bearing through a center joint;

[0009] The three-section arm working mechanism is fixed on the upper frame; the three-section arm working mechanism comprises a large arm, a middle arm and a small arm connected in sequence, and the small arm is provided with a working machine tool at the front end;

[0010] The middle arm comprises coaxial front arm body, rear arm body and rotating oil cylinder fixed between the front arm body and the rear arm body, and the rotating oil cylinder is used for controlling the relative rotation of the front arm body around the axis of the rear arm body.

[0011] Further, the front part of the upper vehicle platform is fixed with a mounting seat;

[0012] The rear end of the large arm is hinged on the mounting seat, and a large arm oil cylinder for controlling the amplitude of the large arm is hinged between the large arm and the mounting seat;

[0013] The rear arm body in the middle arm is hinged to the front end of the large arm, and a middle arm oil cylinder for controlling the amplitude of the middle arm is hinged between the rear arm body and the large arm;

[0014] The rear end of the small arm is hinged to the front arm body in the middle arm, and a small arm oil cylinder for controlling the amplitude of the small arm is hinged between the small arm and the front arm body.

[0015] The working machine is hinged to the front end of the small arm, and a bucket oil cylinder is hinged to the small arm, and the other end of the bucket oil cylinder is hinged to the working machine through a connecting rod and a jib.

[0016] The walking mechanism comprises a crawler chassis, and the crawler chassis is provided with a tensioning wheel, a supporting wheel, a chain supporting wheel and a driving wheel on both sides thereof, respectively, and a crawler belt is arranged on the tensioning wheel, the supporting wheel, the chain supporting wheel and the driving wheel through a chain.

[0017] The tensioning wheel is connected with a tensioning buffer mechanism for adjusting the position of the tensioning wheel.

[0018] The crawler chassis is further provided with a walking motor for driving the driving wheel.

[0019] The front end of the crawler chassis is hinged to a bulldozing blade, and a bulldozing blade oil cylinder for controlling the amplitude of the bulldozing blade is hinged between the bulldozing blade and the crawler chassis.

[0020] The cab is provided with a roof, and the roof is fixed to the cab platform.

[0021] The cab platform is provided with a power box at the rear portion thereof, and a hydraulic oil tank is arranged at the front right side of the cab platform, and the cab is arranged at the front left side of the cab platform, and a hydraulic control valve group is arranged below the right side of the cab.

[0022] The power box is provided with an explosion-proof motor, a hydraulic pump and an explosion-proof new energy battery pack, the explosion-proof new energy battery pack provides power for the explosion-proof motor, the explosion-proof motor is connected with the hydraulic pump through a shaft coupling, and the explosion-proof motor is used for driving the hydraulic pump to provide hydraulic power for the excavator.

[0023] The side surface of the power box is fixed with a heat dissipation module and a fan for dissipating heat of the power box.

[0024] The excavator has the advantages that:

[0025] The middle arm of the three-section arm working mechanism has the function of ±180° rotation, and cooperates with the rotation ability of 360° of the cab frame, so that the working range of the excavator is greatly expanded, the excavator can reach more areas that are difficult to reach by traditional excavators, the construction dead angle is reduced, and the excavator can perform more diversified operation tasks, such as excavation, loading, bottom digging, top picking, side digging and the like, and the construction efficiency is improved.

[0026] Adopt the anti-explosion new energy battery group as the power source, replaces the traditional downhole diesel engine, realizes the environmental protection goal of no pollution, zero emission, does not need the special person to look after the drag cable, saves the manpower cost, and reduces the safety risk, not only improves the operation environment, reduces the health hazard to the worker, but also meets the modern industry to the green, sustainable development requirement. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will briefly introduce the drawing needed to be used in the embodiment or prior art description, obviously, the drawing in the following description only some embodiments of the utility model, for ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other drawings according to these drawings.

[0028] Figure 1 It is a structure schematic diagram of the utility model one kind mine anti-explosion new energy electric hydraulic excavator.

[0029] Figure 2 It is a structure schematic diagram of the utility model upper frame.

[0030] Figure 3 It is a structure schematic diagram of the utility model lower frame.

[0031] Figure 4 It is the three-section arm working mechanism in the utility model.

[0032] Explanation of reference numerals: 1, upper frame;2, lower frame;3, three-section arm working mechanism;4, ceiling;41, cab;42, power box;5, hydraulic oil tank;6, heat dissipation module;61, fan;7, explosion-proof motor;71, hydraulic pump;8, anti-explosion new energy battery group;9, hydraulic control valve group;10, upper platform;11, bulldozing shovel;12, bulldozing shovel oil cylinder;13, tensioning wheel;14, tensioning buffer mechanism;15, crawler chassis, 16, supporting wheel;17, chain wheel;18, driving wheel;19, track shoe;191, chain;20, walking motor;21, slewing bearing;211, center joint;22, excavator bucket;23, small arm oil cylinder;24, small arm;25, excavator bucket oil cylinder;26, middle arm;261, forearm body;262, rear arm body;27, middle arm oil cylinder;28, rotary oil cylinder;29, large arm;30, large arm oil cylinder;31, mounting seat. DETAILED DESCRIPTION

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Example 1:

[0035] like Figures 1 to 3 As shown, this utility model provides a mining explosion-proof new energy electric hydraulic excavator, which mainly includes a lower frame 2, an upper frame 1, and a three-section boom working mechanism 3.

[0036] The lower frame 2 includes a tracked traveling mechanism, and a slewing bearing 21 is fixed at the middle position on the traveling mechanism. The upper frame 1 includes an upper platform 10, and the slewing bearing 21 is connected to the upper platform 10 through a center joint 211. The upper frame 1 can rotate 360° on the lower frame 2 through the slewing bearing 21.

[0037] Combined Figure 4 As shown, the three-section boom working mechanism 3 is fixed to the front of the upper frame 1. The three-section boom working mechanism 3 mainly includes the boom 29, the middle boom 26, the forearm 24 and the working tool.

[0038] The front of the loading platform 10 is fixed with a mounting base 31; the rear end of the boom 29 is hinged to the mounting base 31 by a pin, and a boom cylinder 30 is hinged between the boom 29 and the mounting base 31; the boom cylinder 30 is used to control the lifting and lowering action of the boom 29.

[0039] The middle arm 26 adopts a rotatable structure: the middle arm 26 includes a coaxial forearm body 261, a rear arm body 262, and a rotary cylinder 28. The two ends of the rotary cylinder 28 are fixedly connected to the forearm body 261 and the rear arm body 262, respectively. By rotating the rotary cylinder 28, the forearm body 261 can be controlled to rotate around the axis of the rear arm body 262, so that the forearm body 261 can rotate ±180°. The rear arm body 262 is hinged to the front end of the upper arm 29 by a pin. A middle arm cylinder 27 is hinged between the rear arm body 262 and the upper arm 29. The middle arm cylinder 27 is used to control the lifting and lowering action of the middle arm 26.

[0040] The rear end of the forearm 24 is hinged to the forearm body 261 by a pin. A forearm cylinder 23 is hinged between the forearm 24 and the forearm body 261. The forearm cylinder 23 is used to control the lifting and lowering of the forearm 24.

[0041] The working implement in the embodiment is a bucket 22, which is hingedly connected to the front end of the small arm 24; the bucket cylinder 25 is hingedly connected to the small arm 24 at one end and hingedly connected to the bucket 22 through a connecting rod, a toggle, and a pin at the other end; the bucket cylinder 25 is used to control the action of the bucket 22.

[0042] In operation;

[0043] The upper frame 1 can rotate by 360° through the rotary support 21, the middle arm 26 in the three-section arm working mechanism 3 can rotate by ±180°, and the control cylinders of the large arm, the middle arm, and the small arm are matched to make the three-section arm working mechanism 3 have the actions of excavating, small arm lifting, middle arm rotating, middle arm lifting, large arm lifting, etc., so that the three-section arm working mechanism 3 can realize the coordinated cooperation of multiple actions and has the working functions of excavating, loading, bottom laying, top picking, side digging, etc. The three-section arm working mechanism 3 with multiple degrees of freedom can meet more working requirements and has a wider and more flexible construction range.

[0044] Embodiment two:

[0045] On the basis of the above-mentioned embodiment one, in combination with Figures 1 to 3 As shown in the figure, the traveling mechanism in the embodiment includes a crawler chassis 15, the crawler chassis 15 is respectively provided with a tensioning wheel 13, a supporting wheel 16, a chain supporting wheel 17, and a driving wheel 18 on both sides, and a crawler belt is installed on the tensioning wheel 13, the supporting wheel 16, the chain supporting wheel 17, and the driving wheel 18. In the embodiment, the crawler belt includes a chain 191 installed on the tensioning wheel 13, the supporting wheel 16, the chain supporting wheel 17, and the driving wheel 18, and the chain 191 is uniformly provided with a crawler belt plate 19. The tensioning wheel 13 is connected with a tensioning buffer mechanism 14, the position of the tensioning wheel 13 can be adjusted through the tensioning buffer mechanism 14, and the tightness of the crawler belt can be controlled. A traveling motor 20 is fixed to the rear part of the crawler chassis 15 and connected with the driving wheel 18 to provide power for the driving wheel 18 and drive the operation of the traveling mechanism.

[0046] The front end of the crawler chassis 15 is hingedly connected with a bulldozing blade 11, and the bulldozing blade 11 is hingedly connected with the crawler chassis 15 through a bulldozing blade cylinder 12. The ground clearance of the bulldozing blade 11 can be adjusted through the extension and retraction of the bulldozing blade cylinder 12 to realize the road leveling operation.

[0047] Embodiment three:

[0048] On the basis of the above-mentioned embodiment two, in combination with Figures 1 to 3 As shown in the figure, the upper platform 10 in the embodiment is provided with a power box 42 at the rear part, a hydraulic oil tank 5 at the front right part, and a cab 41 at the front left part. A roof 4 is arranged above the cab 41 and fixed to the upper platform 10. The hydraulic control valve group 9 is arranged below the right side of the cab 41.

[0049] The power box 42 is internally provided with an explosion-proof motor 6, a hydraulic pump 71 and an explosion-proof new energy battery pack 8; the explosion-proof new energy battery pack 8 provides power for the explosion-proof motor 7; the explosion-proof motor 7 is connected with the hydraulic pump 71 through a shaft coupling, and is used to drive the hydraulic pump 71 to provide hydraulic power for the excavator. The side surface of the power box 42 is fixed with a heat dissipation module 6 and a fan 61, which are used to provide heat dissipation for the power box 42.

[0050] The embodiment adopts the explosion-proof new energy battery pack as power, is pollution-free, zero-emission, clean, efficient, safe and reliable. The environmental pollution problem caused by tail gas emission of the underground diesel vehicle is fundamentally solved, the working environment is improved, and the physical and mental health of workers is beneficial.

[0051] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application belong to the scope of the claims of the present application and equivalent technologies, the present application also intends to include these modifications and variations.

Claims

1. A mining explosion-proof new energy electric hydraulic excavator, characterized in that comprising: a lower frame (2) comprising a traveling mechanism and a slewing bearing (21) fixed on the traveling mechanism; an upper frame (1) comprising an upper frame platform (10) and a cab (41) mounted on the upper frame platform (10); the upper frame (1) is installed on the slewing bearing (21) through a center joint (211); a three-section arm working mechanism (3) fixed on the upper frame (1); the three-section arm working mechanism (3) comprises a large arm (29), a middle arm (26) and a small arm (24) which are sequentially hinged, and a working implement is mounted at the front end of the small arm (24); wherein the middle arm (26) comprises coaxial front and rear arm bodies (261, 262) and a rotary oil cylinder (28) fixed between the front and rear arm bodies (261, 262), and the rotary oil cylinder (28) is used to control the relative rotation of the front arm body (261) around the axis of the rear arm body (262).

2. The mine-used explosion-proof new energy electric hydraulic excavator according to claim 1, characterized in that: The front part of the upper frame platform (10) is fixed with a mounting seat (31); the rear end of the large arm (29) is hinged on the mounting seat (31), and a large arm oil cylinder (30) for controlling the luffing of the large arm (29) is hinged between the large arm (29) and the mounting seat (31); the rear arm body (262) of the middle arm (26) is hinged at the front end of the large arm (29), and a middle arm oil cylinder (27) for controlling the luffing of the middle arm (26) is hinged between the rear arm body (262) and the large arm (29); the rear end of the small arm (24) is hinged on the front arm body (261) of the middle arm (26), and a small arm oil cylinder (23) for controlling the luffing of the small arm (24) is hinged between the small arm (24) and the front arm body (261).

3. The mine-used explosion-proof new energy electric hydraulic excavator according to claim 1 or 2, characterized in that: The working implement is hinged at the front end of the small arm (24); a bucket oil cylinder (25) is hinged on the small arm (24), and the other end of the bucket oil cylinder (25) is hinged with the working implement through a connecting rod and a bell crank.

4. The mine-used explosion-proof new energy electric hydraulic excavator according to claim 1, characterized in that: The traveling mechanism comprises a crawler chassis (15), and a tensioning wheel (13), a supporting wheel (16), a chain supporting wheel (17) and a driving wheel (18) are respectively mounted on both sides of the crawler chassis (15); a crawler belt (19) is mounted on the tensioning wheel (13), the supporting wheel (16), the chain supporting wheel (17) and the driving wheel (18) through a chain (191); the tensioning wheel (13) is connected with a tensioning buffer mechanism (14) for adjusting the position of the tensioning wheel (13); a traveling motor (20) for driving the driving wheel (18) is further mounted on the crawler chassis (15).

5. The mine-used explosion-proof new energy electric hydraulic excavator according to claim 4, characterized in that: A bulldozing blade (11) is hinged at the front end of the crawler chassis (15), and a bulldozing blade oil cylinder (12) for controlling the luffing of the bulldozing blade (11) is hinged between the bulldozing blade (11) and the crawler chassis (15).

6. The mine-used explosion-proof new energy electric hydraulic excavator according to claim 1, characterized in that: A roof (4) is arranged above the cab (41) and is fixed on the upper frame platform (10).

7. The mine-used explosion-proof new energy electric hydraulic excavator according to claim 1, characterized in that: The power box (42) is mounted at the rear of the upper platform (10), and the hydraulic oil tank (5) is mounted at the front right side of the upper platform (10); the cab (41) is mounted at the front left side of the upper platform (10), and the hydraulic control valve group (9) is mounted below the right side of the cab (41).

8. The mine-used explosion-proof new energy electric hydraulic excavator according to claim 7, characterized in that: The explosion-proof motor, the hydraulic pump (71) and the explosion-proof new energy battery pack (8) are mounted in the power box (42); the explosion-proof new energy battery pack (8) provides power for the explosion-proof motor (7); the explosion-proof motor (7) is connected with the hydraulic pump (71) through a shaft coupling, and is used for driving the hydraulic pump (71) to provide hydraulic power for the excavator.

9. The mine-used explosion-proof new energy electric hydraulic excavator according to claim 7, characterized in that: The heat dissipation module (6) and the fan (61) for dissipating heat for the power box (42) are fixed to the side of the power box (42).

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