A control system of an intelligent networked hydraulic excavator

Abstract

The application discloses an intelligent networked hydraulic excavator control system, which comprises an excavator base body, a first excavating arm, a second excavating arm, an excavating bucket, a hydraulic telescopic rod and a moving base body. The first excavating arm is rotatably installed on the left side of the excavator base body, the second excavating arm is rotatably installed on the left side of the first excavating arm, and the excavating bucket is rotatably installed on the lower end of the second excavating arm. The hydraulic excavator control system is provided with a support plate capable of providing secondary support and a second air bag. When the hydraulic telescopic rod provides support, the support plate is driven to rotate by a traction rope, the support plate supports the second excavating arm, the support plate is pressed against the first air bag by a pressing rod when rotating, the first air bag inflates the second air bag to make it expand and contact the second excavating arm, air supply treatment is realized, the second excavating arm is provided with secondary support, the second excavating arm runs more stably, the phenomenon of deflection is prevented, and the stability of the device is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of excavator control, and particularly relates to a control system of an intelligent networked hydraulic excavator. BACKGROUND

[0002] An excavator is a kind of widely used machine, which can effectively play a role in the transportation and modification of soil. The hydraulic excavator can be controlled through a control system. When the hydraulic excavator is operated, the operator needs to have certain proficiency. The existing control system of the hydraulic excavator still has certain defects, for example, a hydraulic excavator positive flow control device disclosed in CN201193335Y comprises a pilot pressure sensor installed at a pilot valve of the excavator and a controller for controlling fuel quantity, characterized in that: the device further comprises an inclination sensor, an angle sensor, a displacement sensor and a pressure sensor, the receiving and sending ends of the inclination sensor are respectively installed on the outer end surface of a swing arm and a bucket rod hinged pin shaft and the side surface of the bucket rod, the angle sensor is installed at the bottom of a rotating device, the receiving and sending ends of the displacement sensor are respectively installed on the outer end surface of a swing arm cylinder piston rod pin shaft and the cylinder wall of the swing arm cylinder, and the pressure sensor is installed on the main output oil port of a main pump; the signal output ends of the sensors are connected with the signal acquisition end of the controller. The detection values of the sensors are input into the controller, and the current working mode is determined by comparing the detection values with the boundary conditions set under various working conditions, so that the operation performance and working efficiency are improved, and energy saving is achieved.

[0003] The above-mentioned hydraulic excavator positive flow control device compares the detection values of the sensors with the previously set conditions to save energy. However, when the excavator is controlled to dig, if the weight of the soil dug at one time is large, a large pressure is generated on the digging arm, which may cause a certain degree of damage to the excavator, and even may cause the excavator to be damaged. Meanwhile, when the excavator transports soil, the driver needs to rotate the excavator in the driver's cabin to move the excavator. When the driver's cabin and the device at the bottom are rotated, there is a large friction force. After long-time use, the excavator may be seriously worn. SUMMARY

[0004] The application aims to provide a control system of an intelligent networked hydraulic excavator to solve the problems that a large pressure is generated on the digging arm, which may cause a certain degree of damage to the excavator, and there is a large friction force between the driver's cabin and the device at the bottom when the driver's cabin and the device at the bottom are rotated, and the excavator may be seriously worn after long-time use.

[0005] In order to achieve the above object, the present application provides the following technical scheme: a control system of an intelligent networked hydraulic excavator, comprising an excavator base body, a first excavating arm, a second excavating arm, an excavating bucket, a hydraulic telescopic rod and a moving base, the left side of the excavator base body is rotatably provided with the first excavating arm, the left side of the first excavating arm is rotatably provided with the second excavating arm, the lower end of the second excavating arm is rotatably provided with the excavating bucket, the front and rear ends of the second excavating arm are fixedly provided with a first fixed rod, the outer side of the first fixed rod is rotatably provided with a supporting rod, the upper end of the supporting rod is fixedly provided with a first rotating rod, the inner side of the first rotating rod is rotatably provided with a sliding sleeve, the front and rear surfaces of the first excavating arm are provided with supporting grooves, and the left side of the excavator base body is fixedly provided with the hydraulic telescopic rod;

[0006] The upper end of the hydraulic telescopic rod is fixedly provided with a traction rope, the upper end of the traction rope is fixedly provided on a torsion spring, the outer side of the torsion spring is fixedly provided with a rotating block, the outer side of the rotating block is fixedly provided with a supporting plate, the middle end of the hydraulic telescopic rod is fixedly provided with a fixed sleeve ring, the inside of the fixed sleeve ring is fixedly provided with a first air bag, and the upper side of the supporting plate is fixedly provided with a second air bag.

[0007] The bottom of the excavator base body is fixedly provided with a second fixed rod, the lower end of the second fixed rod penetrates to be provided with a limiting installation rod, and the surface of the limiting installation rod is nested with a rotating wheel.

[0008] Further, the first rotating rod forms a rotating structure with the sliding sleeve through the supporting rod, the shape of the first rotating rod is a "T" shape, and the first rotating rod is engaged with the sliding sleeve, which realizes that the supporting rod can rotate and the supporting rod can support the first excavating arm and the second excavating arm.

[0009] Further, the connecting mode of the sliding sleeve and the supporting groove is sliding connection, the sliding sleeve is engaged with the supporting groove, and the shape of the supporting groove is arc-shaped, which realizes that the sliding sleeve is nested in the supporting groove, the sliding sleeve can slide back and forth along the supporting groove, and the effect of the shape of the supporting groove.

[0010] Further, the lower end of the traction rope is fixedly provided on the edge part of the hydraulic telescopic rod, the middle end of the traction rope contacts a guide wheel, and the rear end of the guide wheel is fixedly provided on the upper end of the hydraulic telescopic rod, which realizes that the traction rope can be pulled when the upper end of the hydraulic telescopic rod is extended, and the traction rope changes direction under the action of the guide wheel.

[0011] Further, the hydraulic telescopic rod forms a traction structure with the traction rope and the torsion spring, a second rotating rod is fixedly installed on the inner side of the torsion spring, and the second rotating rod is fixedly installed on the hydraulic telescopic rod, which realizes the effect that the traction rope can pull the torsion spring and the second rotating rod.

[0012] Further, the rotating block forms an elastic structure with the second rotating rod through the torsion spring, and the rotating block and the second rotating rod are nested, which realizes the effects that the rotating rod and the second rotating rod can rotate, and the rotating rod and the second rotating rod can be reset through the torsion spring.

[0013] Further, the inner lower end of the first air bag is fixedly installed with a gas guide pipe, the upper end of the gas guide pipe is fixedly installed on the inner side of the second air bag, the middle end of the gas guide pipe is nested in the inside of the hydraulic telescopic rod, and the first air bag forms a communication structure with the second air bag through the gas guide pipe.

[0014] Further, the lower end of the support plate is fixedly installed with a pressing rod, the shape of the pressing rod is "L" shape, and the lower end of the pressing rod is located on the inner side of the first air bag, which realizes the effects that the pressing rod can rotate with the support plate, and the pressing plate can contact and press the first air bag.

[0015] Further, the connecting mode of the limiting installation rod and the rotating wheel is rotating connection, the shape of the rotating wheel is circular, and the rotating wheel is nested in the inside of the moving base, which realizes the effects that the rotating wheel is nested and clamped in the inside of the moving base, and the rotating wheel can rotate.

[0016] Further, the upper end surface of the moving base is provided with a limiting groove, the shape of the limiting groove is circular arc, and the connecting mode between the limiting groove and the rotating wheel is rolling connection, which realizes the effects that the shape of the limiting groove and the rotating wheel can roll along the inside of the limiting groove.

[0017] Compared with the prior art, the hydraulic excavator has the following beneficial effects:

[0018] 1. The control system of the hydraulic excavator is provided with a support rod capable of supporting the first digging arm and the second digging arm of the excavator, a first fixed rod is arranged at the front end of the first digging arm, and a sliding sleeve is nested in the inside of the second digging arm, so that when the first digging arm digs heavy soil through the digging bucket, the first digging arm is supported, the serious overload of the first digging arm caused by too heavy weight is avoided, the second digging arm is supported through the hydraulic telescopic rod, the pressure on the second digging arm is reduced, the device is protected, the device is more durable, and the service life of the device is improved.

[0019] 2. The control system of the hydraulic excavator, the support plate capable of secondary support and the second air bag are arranged, when the hydraulic telescopic rod supports, the support plate is driven to rotate through the traction rope, the support plate rotates to hold the first excavating arm, at this time, the support plate is pressed to the first air bag through the pressing rod under the rotation, the first air bag inflates the second air bag to make it expand to contact the first excavating arm, realizes the air supply treatment, the first excavating arm is supported twice, so that the first excavating arm runs more stably, prevents the phenomenon of deflection, improves the stability of the device.

[0020] 3. The control system of the hydraulic excavator, the rotating wheel capable of reducing wear is arranged, the circular limiting groove is arranged on the moving base, when the excavator base rotates, the sliding friction is changed into the rolling friction, under the premise of ensuring stable operation, the friction between the excavator base and the moving base can be reduced, the fifteen rotating wheels roll in the limiting groove, so that the excavator base rotates stably, the effect of reducing wear is realized, the service life of the device is improved, the device is more durable, and the frequency of maintenance is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a schematic view of the present application;

[0022] Figure 2 It is a schematic view of the present application;

[0023] Figure 3 It is a schematic view of the present application;

[0024] Figure 4 It is a schematic view of the present application;

[0025] Figure 5 It is a schematic view of the present application; Figure 4 It is a schematic view of the present application;

[0026] Figure 6 It is a schematic view of the present application;

[0027] Figure 7 It is a schematic view of the present application;

[0028] Figure 8 It is a schematic view of the present application.

[0029] In the figure: 1, excavator base body; 2, first excavating arm; 3, second excavating arm; 4, excavating bucket; 5, first fixed rod; 6, support rod; 7, first rotating rod; 8, sliding sleeve; 9, support groove; 10, hydraulic telescopic rod; 11, traction rope; 12, guide wheel; 13, torsion spring; 14, second rotating rod; 15, rotating block; 16, support plate; 17, pressing rod; 18, fixed sleeve ring; 19, first air bag; 20, air guide pipe; 21, second air bag; 22, second fixed rod; 23, limiting installation rod; 24, rotating wheel; 25, limiting groove; 26, moving base. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0031] Please refer to Figures 1-8 The present application provides a technical solution: a control system of an intelligent networked hydraulic excavator, comprising an excavator base body 1, a first excavating arm 2, a second excavating arm 3, an excavating bucket 4, a first fixed rod 5, a support rod 6, a first rotating rod 7, a sliding sleeve 8, a support groove 9, a hydraulic telescopic rod 10, a traction rope 11, a guide wheel 12, a torsion spring 13, a second rotating rod 14, a rotating block 15, a support plate 16, a pressing rod 17, a fixed sleeve ring 18, a first air bag 19, an air guide pipe 20, a second air bag 21, a second fixed rod 22, a limiting installation rod 23, a rotating wheel 24, a limiting groove 25, and a moving base 26.

[0032] In the present embodiment: the left side of the excavator base body 1 is rotatably installed with the first excavating arm 2, and the left side of the first excavating arm 2 is rotatably installed with the second excavating arm 3, and the lower end of the second excavating arm 3 is rotatably installed with the excavating bucket 4, and the front and rear ends of the second excavating arm 3 are fixedly installed with the first fixed rod 5, and the outer side of the first fixed rod 5 is rotatably installed with the support rod 6, and the upper end of the support rod 6 is fixedly installed with the first rotating rod 7, and the inner side of the first rotating rod 7 is rotatably installed with the sliding sleeve 8, and the front and rear surfaces of the first excavating arm 2 are provided with the support groove 9, and the left side of the excavator base body 1 is fixedly installed with the hydraulic telescopic rod 10.

[0033] The upper end of the hydraulic telescopic rod 10 is fixedly installed with a traction rope 11, and the upper end of the traction rope 11 is fixedly installed on a torsion spring 13, the outer side of the torsion spring 13 is fixedly installed with a rotating block 15, and the outer side of the rotating block 15 is fixedly installed with a supporting plate 16, the middle end of the hydraulic telescopic rod 10 is fixedly installed with a fixed sleeve ring 18, and the inside of the fixed sleeve ring 18 is fixedly installed with a first air bag 19, and the upper side of the supporting plate 16 is fixedly installed with a second air bag 21.

[0034] The bottom of the excavator base body 1 is fixedly installed with a second fixed rod 22, and the lower end of the second fixed rod 22 penetrates to install a limiting installation rod 23, and the surface of the limiting installation rod 23 is nested to install a rotating wheel 24, and the lower end of the excavator base body 1 is provided with a moving base 26.

[0035] The first rotating rod 7 is in a rotating structure with the sliding sleeve 8 through the supporting rod 6, the shape of the first rotating rod 7 is a "T" shape, and the first rotating rod 7 is engaged with the sliding sleeve 8, the connection between the sliding sleeve 8 and the supporting groove 9 is a sliding connection, the sliding sleeve 8 is engaged with the supporting groove 9, and the shape of the supporting groove 9 is arc-shaped.

[0036] According to Figure 1 , Figure 2 and Figure 3 , the control system of the hydraulic excavator, when excavating, the excavator base body 1 controls the first excavating arm 2 and the second excavating arm 3, at this time the excavating bucket 4 excavates the soil, when the first excavating arm 2 and the second excavating arm 3 rotate, the supporting rod 6 rotates around the first fixed rod 5 fixedly installed at the front and rear ends of the second excavating arm 3, at the same time the first rotating rod 7 fixedly installed at the upper end of the supporting rod 6 is nested inside the sliding sleeve 8, and the first rotating rod 7 also rotates inside the sliding sleeve 8, cooperates with the sliding sleeve 8 to be engaged inside the arc-shaped supporting groove 9, the sliding sleeve 8 slides along the inside of the supporting groove 9 with the rotation of the first excavating arm 2 and the second excavating arm 3, controls the hydraulic telescopic rod 10 to extend with the position of the first excavating arm 2, the hydraulic telescopic rod 10 can support the first excavating arm 2 to prevent the phenomenon of being pressed too much, so as to achieve the effect of auxiliary support.

[0037] The lower end of the traction rope 11 is fixedly installed on the edge portion of the hydraulic telescopic rod 10, and the middle end of the traction rope 11 contacts the guide wheel 12, and the rear end of the guide wheel 12 is fixedly installed on the upper end of the hydraulic telescopic rod 10, the hydraulic telescopic rod 10 forms a traction structure with the torsion spring 13 through the traction rope 11, and the inner side of the torsion spring 13 is fixedly installed with the second rotating rod 14, and the inner side of the second rotating rod 14 is fixedly installed on the hydraulic telescopic rod 10, the rotating block 15 forms an elastic structure with the second rotating rod 14 through the torsion spring 13, and the rotating block 15 is nested with the second rotating rod 14, the inner side of the lower end of the first air bag 19 is fixedly installed with the air guide pipe 20, and the upper end of the air guide pipe 20 is fixedly installed on the inner side of the second air bag 21, and the middle end of the air guide pipe 20 is nested in the inside of the hydraulic telescopic rod 10, and the first air bag 19 forms a communication structure with the second air bag 21 through the air guide pipe 20, the lower end of the inner side of the supporting plate 16 is fixedly installed with the pressing rod 17, and the shape of the pressing rod 17 is "L" shape, and the lower end of the pressing rod 17 is located on the inner side of the first air bag 19.

[0038] According to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 , the control system of the hydraulic excavator, when the hydraulic telescopic rod 10 supports the first excavating arm 2, the upper end of the hydraulic telescopic rod 10 rises, at this time, due to the lower end of the traction rope 11 being fixedly installed on the upper end edge portion of the hydraulic telescopic rod 10, under the change of the guide wheel 12, as the upper end of the hydraulic telescopic rod 10 extends, the traction rope 11 pulls the torsion spring 13 to rotate, the rotation of the torsion spring 13 makes the rotating block 15 rotate around the second rotating rod 14, the rotation of the rotating block 15 drives the supporting plate 16 to rotate, and the first excavating arm 2 is held upwards, at this time, due to the rotation of the supporting plate 16, the "L" shaped pressing rod 17 on the left side of the lower end of the supporting plate 16 rotates and extrudes the first air bag 19, the outer side of the first air bag 19 is fixed by the fixed sleeve 18, under the extrusion of the pressing rod 17, the gas in the first air bag 19 enters the inside of the second air bag 21 through the air guide pipe 20, at this time, the second air bag 21 inflates and expands, after the inflation of the second air bag 21, the first excavating arm 2 in contact is supported again, realizing the effect of secondary support, if the first excavating arm 2 descends, the hydraulic telescopic rod 10 shrinks together, at this time, the traction rope 11 loosens, the torsion spring 13 reversely rotates and resets under the action of its own elastic force, reversely rotates the rotating block 15, resets at the same time, and can also fit the first excavating arm 2, supports the first excavating arm 2, realizes the effect of secondary support and improves the stability.

[0039] The connecting mode of the limiting installation rod 23 and the rotating wheel 24 is rotating connection, the shape of the rotating wheel 24 is circular, the rotating wheel 24 is nested in the inside of the moving base 26, the upper end surface of the moving base 26 is provided with a limiting groove 25, the shape of the limiting groove 25 is circular arc, and the connecting mode between the limiting groove 25 and the rotating wheel 24 is rolling connection.

[0040] According to Figure 1 , Figure 2 and Figure 8 , when the excavator base 1 needs to be adjusted in position, the bottom of the second fixed rod 22 at the lower end of the excavator base 1 penetrates the limiting installation rod 23, the rotating wheels 24 are rotatingly installed at the left and right ends of the limiting installation rod 23, the rotating wheels 24 roll along the inside of the limiting groove 25 provided at the upper end of the moving base 26, the rotating wheels 24 can be nested in the inside of the limiting groove 25 due to their size, so that the excavator base 1 will not appear to be tilted, and the rotating wheels 24 are provided with fifteen in the inside of the limiting groove 25, which has enough strength to support the excavator base 1 and prevent the phenomenon of being crushed.

[0041] The contents not described in detail in the specification belong to the prior art known to those skilled in the art.

[0042] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A control system for an intelligent connected hydraulic excavator, comprising an excavator base (1), a first excavating arm (2), a second excavating arm (3), an excavating bucket (4), a hydraulic telescopic rod (10), and a movable base (26), characterized in that: The excavator base (1) is rotatably mounted with a first excavating arm (2) on its left side, and a second excavating arm (3) is rotatably mounted on the left side of the first excavating arm (2). A digging bucket (4) is rotatably mounted on the lower end of the second excavating arm (3). A first fixing rod (5) is fixedly mounted on the front and rear ends of the second excavating arm (3). A support rod (6) is rotatably mounted on the outer side of the first fixing rod (5). A first rotating rod (7) is fixedly mounted on the upper end of the support rod (6). A sliding sleeve (8) is rotatably mounted on the inner side of the first rotating rod (7). A support groove (9) is opened on the front and rear ends of the first excavating arm (2). A hydraulic telescopic rod (10) is fixedly mounted on the left side of the excavator base (1). The upper end of the hydraulic telescopic rod (10) is fixedly installed with a traction rope (11), and the upper end of the traction rope (11) is fixedly installed on a torsion spring (13). A rotating block (15) is fixedly installed on the outside of the torsion spring (13), and a support plate (16) is fixedly installed on the outside of the rotating block (15). A fixing collar (18) is fixedly installed at the middle end of the hydraulic telescopic rod (10), and a first airbag (19) is fixedly installed inside the fixing collar (18). A second airbag (21) is fixedly installed above the support plate (16). The bottom of the excavator base (1) is fixedly installed with a second fixing rod (22), and the lower end of the second fixing rod (22) is installed through a limit mounting rod (23), and a wheel (24) is nested on the surface of the limit mounting rod (23). The lower end of the excavator base (1) is provided with a movable base (26).

2. The control system for an intelligent connected hydraulic excavator according to claim 1, characterized in that: The first rotating rod (7) forms a rotating structure with the sliding sleeve (8) through the support rod (6), and the first rotating rod (7) is in the shape of a "T" and is engaged with the sliding sleeve (8).

3. The control system for an intelligent connected hydraulic excavator according to claim 1, characterized in that: The sliding sleeve (8) and the support groove (9) are connected by a sliding connection, and the sliding sleeve (8) and the support groove (9) are engaged, and the support groove (9) is arc-shaped.

4. The control system for an intelligent connected hydraulic excavator according to claim 1, characterized in that: The lower end of the traction rope (11) is fixedly installed on the edge of the hydraulic telescopic rod (10), and the middle end of the traction rope (11) contacts the guide wheel (12), and the rear end of the guide wheel (12) is fixedly installed on the upper end of the hydraulic telescopic rod (10).

5. The control system for an intelligent connected hydraulic excavator according to claim 1, characterized in that: The hydraulic telescopic rod (10) forms a traction structure with the torsion spring (13) through the traction rope (11), and a second rotating rod (14) is fixedly installed on the inner side of the torsion spring (13), and the inner side of the second rotating rod (14) is fixedly installed on the hydraulic telescopic rod (10).

6. The control system for an intelligent connected hydraulic excavator according to claim 1, characterized in that: The rotating block (15) forms an elastic structure with the second rotating rod (14) through the torsion spring (13), and the rotating block (15) and the second rotating rod (14) are nested together.

7. The control system for an intelligent connected hydraulic excavator according to claim 1, characterized in that: An air guide tube (20) is fixedly installed on the lower inner side of the first airbag (19), and the upper end of the air guide tube (20) is fixedly installed on the inner side of the second airbag (21). The middle end of the air guide tube (20) is nested inside the hydraulic telescopic rod (10), and the first airbag (19) and the second airbag (21) form a communication structure through the air guide tube (20).

8. The control system for an intelligent connected hydraulic excavator according to claim 1, characterized in that: A pressure rod (17) is fixedly installed on the inner side of the lower end of the support plate (16), and the pressure rod (17) is in the shape of an "L" and the lower end of the pressure rod (17) is located inside the first airbag (19).

9. The control system for an intelligent connected hydraulic excavator according to claim 1, characterized in that: The connection between the limiting mounting rod (23) and the rotating wheel (24) is a rotatable connection, and the rotating wheel (24) is circular in shape and nested inside the movable base (26).

10. The control system for an intelligent connected hydraulic excavator according to claim 1, characterized in that: The upper surface of the movable base (26) is provided with a limiting groove (25), and the limiting groove (25) is arc-shaped. The connection between the limiting groove (25) and the rotating wheel (24) is a rolling connection.

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