Chamber excavation machine

Abstract

The invention relates to the technical field of underground coal mine equipment, and discloses a chamber excavation machine which comprises a first walking unit, a cutting unit, a second walking unit and a power system, the first walking unit is rotationally connected with one end of the second walking unit, and the cutting unit is arranged on the first walking unit; the power system is connected with the first walking unit and the cutting unit, the power system is used for providing walking power and rotating power for the first walking unit, and the power system is used for providing rotating power and cutting power for the cutting unit. According to the excavator, the other end of the first walking unit is rotationally connected with one end of the second walking unit, when the excavator turns, the turning action can be divided into step-by-step turning of the first walking unit and the second walking unit which are rotationally connected with the excavator, and therefore the problems that existing excavator equipment is large in size and inconvenient to use are solved. And the equipment is long and cannot turn in a narrow roadway.

Description

Technical Field

[0001] The invention relates to the technical field of underground coal mine equipment, in particular to a chamber excavator. Background Art

[0002] The working space of underground tunnels is small, the working space of mining equipment is limited, and the existing underground mining equipment is large in size and long in length, and cannot turn in the narrow underground space. Therefore, a chamber excavator is needed to solve the problem that the existing chamber excavator cannot turn in the tunnel. Summary of the invention

[0003] The purpose of the present invention is to provide a chamber excavator to solve the problem of being unable to turn in a tunnel.

[0004] To achieve the above object, the present invention provides the following solutions:

[0005] A chamber excavator comprises a first walking unit, a cutting unit, a second walking unit and a power system, wherein the first walking unit is rotatably connected to one end of the second walking unit, and the cutting unit is arranged on the first walking unit; the power system is connected to the first walking unit and the cutting unit, and the power system is used to provide walking power and rotational power for the first walking unit, and the power system is used to provide rotational power and cutting power for the cutting unit.

[0006] Preferably, the cutting unit includes a rotary drive assembly, a cutting arm and a cutting head; the power system is connected to the rotary drive assembly; the rotary drive assembly is arranged on the first walking unit, the rotary drive assembly is connected to the cutting arm, the cutting head is arranged on the cutting arm, and the rotary drive assembly is used to drive the cutting arm to drive the cutting head to rotate around the rotary drive assembly.

[0007] Preferably, when the straight line where the cutting arm is located is parallel to the longitudinal direction of the first walking unit, the angle between the cutting arm and the first walking unit is 0°; when the rotary drive assembly is used to drive the cutting arm to drive the cutting head to rotate, the rotation angle range of the cutting arm relative to the straight line where the longitudinal direction of the first walking unit is located is -45° to +45°.

[0008] Preferably, a transition unit is further included, wherein the first walking unit is connected to the transition unit via a pin, the pin is perpendicular to the plane where the first walking unit is located, and the other end of the transition unit is connected to the second walking unit.

[0009] Preferably, one end of the second traveling unit is hinged to the transition unit via a second hinge pin, and the second hinge pin is laterally parallel to the second traveling unit.

[0010] Preferably, one end of the second walking unit is hinged to the transition unit via a second hinge pin, and the second hinge pin is perpendicular to the plane where the transition unit is located.

[0011] Preferably, when the chamber excavator is moving straight, the angle between the straight line where the longitudinal direction of the first walking unit is located and the straight line where the longitudinal direction of the transition unit is located is 0°; when turning, the angle between the straight line where the longitudinal direction of the first walking unit is located and the straight line where the longitudinal direction of the transition unit is located is in the range of -45° to +45°.

[0012] Preferably, the device further comprises a bottom shovel unit, which is arranged in front of the first walking unit and is used for cleaning and transporting the mined rock minerals.

[0013] Preferably, the device also includes a controller, which is connected to the first walking unit, the cutting unit and the power system; the controller controls the walking and rotation of the first walking unit; and the rotation and cutting of the cutting unit; the controller controls the opening and closing of the power system.

[0014] According to the records of the above scheme, the present invention discloses the following beneficial effects:

[0015] Due to the chamber excavator disclosed in the present invention, by configuring the excavator so that the other end of the first walking unit is rotatably connected to one end of the second walking unit, when the excavator turns, the turning action can be divided into step-by-step turning of the first walking unit and the second walking unit to which the excavator is rotatably connected, thereby solving the problem that the existing excavator equipment is large in size and long in length and cannot complete turning in narrow tunnels. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 A schematic diagram of a chamber excavator provided in an embodiment of the present invention;

[0018] Among them: 1-shovel unit; 2-cutting unit; 3-first walking unit; 4-pin shaft; 5-transition unit; 6-hinge pin; 7-second walking unit. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] like Figure 1 As shown, the embodiment of this specification discloses a chamber excavator, including a first walking unit 3, a cutting unit 2, a second walking unit 7 and a power system, wherein the first walking unit 3 is rotatably connected to one end of the second walking unit 7, and the cutting unit 2 is arranged on the first walking unit 3; the power system is connected to the first walking unit 3 and the cutting unit 2, and the power system is used to provide walking power and rotational power to the first walking unit 3, and the power system is used to provide rotational power and cutting power to the cutting unit 2. Among them, the first walking unit 3 and the second walking unit 7 are used for device travel; the cutting unit 2 is used for underground excavation operations such as opening a chamber, cutting an eye and opening a connecting lane. The power system is preferably a hydraulic system, and the hydraulic system includes a hydraulic pump, a hydraulic pipeline, a hydraulic valve and a hydraulic motor; the walking hydraulic motor provides the first walking unit 3 with walking power; and the cutting hydraulic motor provides the cutting unit 2 with cutting power. The rotation operation of the first walking unit 3 is performed by a rotation mechanism, which includes a steering gear, a tie rod, an oil pump and an oil cylinder. The oil cylinder is connected to the oil pump for providing hydraulic oil, and the oil pump is connected to the steering gear for providing rotational power. The steering gear is connected to the middle part of the tie rod to achieve lateral steering, and both ends of the tie rod are respectively connected to wheels, thereby achieving the steering operation of the first walking unit 3.

[0021] The embodiment of the present specification discloses a chamber excavator. By configuring the excavator so that the other end of the first walking unit 3 is rotatably connected to one end of the second walking unit 7, when the excavator turns, the turning action can be divided into step-by-step turning of the first walking unit 3 and the second walking unit 7 to which the excavator is rotatably connected, thereby solving the problem that the existing excavator equipment is large in size and long in length and cannot complete turning in a narrow tunnel.

[0022] The cutting unit 2 includes a slewing drive assembly, a cutting arm and a cutting head; the slewing drive assembly is arranged on the first walking unit 3, the slewing drive assembly is connected to the power system, the power system provides rotational power for the slewing drive assembly, the slewing drive assembly is connected to the cutting arm, the cutting head is arranged on the cutting arm, the slewing drive assembly is used to drive the cutting arm to drive the cutting head to rotate around the slewing drive assembly, a hydraulic steering gear is arranged inside the slewing drive assembly, the power of the slewing drive assembly is provided by a hydraulic cylinder and a hydraulic pump, and the steering operation of the cutting unit 2 is realized through the hydraulic steering gear.

[0023] When the straight line where the cutting arm is located is parallel to the longitudinal direction of the first walking unit 3, the angle between the cutting arm and the first walking unit 3 is 0°; when the rotary drive assembly is used to drive the cutting arm to drive the cutting head to rotate, the angle range of the cutting arm relative to the straight line where the longitudinal direction of the first walking unit 3 is located is -45° to +45°, and the excavation angle range of the cutting unit 2 is two lateral angle ranges of 45° each of the first walking unit 3.

[0024] The device also includes a transition unit 5, one end of which is rotatably connected to the first walking unit 3, and the other end of the transition unit 5 is connected to the second walking unit 7. The transition unit 5 is used to connect the first walking unit 3 and the second walking unit 7. The setting of the transition unit 5 enables the first walking unit 3 and the second walking unit 7 of the device to travel in a lane with a slope. The first walking unit 3 and the transition unit 5 are connected by a pin 4, and the axis of the pin 4 is perpendicular to the plane where the first walking unit 3 is located. With this setting, the first walking unit 3 can rotate a certain angle relative to the transition unit 5, realizing step-by-step turning between the first walking unit 3 and the transition unit 5, so as to solve the problem that the existing excavator is too long to turn in a narrow lane.

[0025] One end of the second walking unit 7 is hinged to one end of the transition unit 5 through the second hinge pin 6, and the axis of the second hinge pin 6 is parallel to the horizontal direction of the second walking unit 7. This arrangement enables the second walking unit 7 to rotate around the second hinge pin 6 perpendicular to the plane where the lane is located, thereby achieving walking and turning on the lane with a slope. In addition, it is preferred to set two hinge pins 6, and the straight lines where the axes 4 of the two hinge pins 6 are located are collinear, which is conducive to the rotation of the second walking unit 7 relative to the first walking unit 3 and the transition unit 5 in the plane perpendicular to the lane.

[0026] One end of the second walking unit 7 is hinged to one end of the transition unit 5 through the second hinge pin 6, and the axis of the second hinge pin 6 is perpendicular to the plane where the transition unit 5 is located. With this arrangement, the device can be divided into three parts for turning, realizing distributed turning, which is beneficial for turning of an excavator with a longer length.

[0027] The device also includes a bottom shovel unit 1, which is arranged in front of the first walking unit 3 and is used to clean and transport the mined rocks and minerals. This arrangement can clear the mined rocks and minerals in time, which is conducive to the advancement of excavation work.

[0028] When the chamber excavator is moving straight, the angle between the straight line where the longitudinal direction of the first traveling unit 3 is located and the straight line where the longitudinal direction of the transition unit 5 is located is 0°; when turning, the angle between the straight line where the longitudinal direction of the first traveling unit 3 is located and the straight line where the longitudinal direction of the transition unit 5 is located is in the range of -45° to +45°. Since the first traveling unit 3 can rotate -45° to +45° relative to the transition unit 5, and the cutting unit 2 can rotate -45° to +45° relative to the first traveling unit 3, when the first traveling unit 3 rotates 45° relative to the straight transition unit 5, the cutting unit 2 also rotates 45° relative to the first traveling unit 3. At this time, the cutting unit 2 rotates 90° relative to the transition unit 5, so that the cutting head can excavate the tunnel vertically.

[0029] The device also includes a controller, which is connected to the first walking unit 3, the cutting unit 2 and the power system; the controller controls the first walking unit 3 to walk and rotate; the controller controls the cutting unit 2 to rotate and cut; the controller controls the power system to start and stop. Through the setting of the controller, the excavator can automatically execute walking, turning and excavation, which is conducive to improving the automation level of the device.

[0030] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the system disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0031] The principles and implementation methods of the present invention are described in this article using specific examples. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A chamber excavator, characterized in that: It includes a first walking unit, a cutting unit, a second walking unit and a power system. The first walking unit is rotatably connected to one end of the second walking unit, and the cutting unit is arranged on the first walking unit; the power system is connected to the first walking unit and the cutting unit, and the power system is used to provide walking power and rotational power for the first walking unit, and the power system is used to provide rotational power and cutting power for the cutting unit.

2. The chamber excavator according to claim 1, characterized in that: The cutting unit includes a rotary drive assembly, a cutting arm and a cutting head; the power system is connected to the rotary drive assembly; the rotary drive assembly is arranged on the first walking unit, the rotary drive assembly is connected to the cutting arm, the cutting head is arranged on the cutting arm, and the rotary drive assembly is used to drive the cutting arm to drive the cutting head to rotate around the rotary drive assembly.

3. The chamber excavator according to claim 2, characterized in that: When the straight line where the cutting arm is located is parallel to the longitudinal direction of the first walking unit, the angle between the cutting arm and the first walking unit is 0°; when the rotary drive assembly is used to drive the cutting arm to drive the cutting head to rotate, the rotation angle range of the cutting arm relative to the straight line where the longitudinal direction of the first walking unit is located is -45° to +45°.

4. The chamber excavator according to claim 1, characterized in that: It also includes a transition unit, the first walking unit is connected to the transition unit via a pin, the pin is perpendicular to the plane where the first walking unit is located, and the other end of the transition unit is connected to the second walking unit.

5. The chamber excavator according to claim 4, characterized in that: One end of the second traveling unit is hinged to the transition unit via a second hinge pin, and the second hinge pin is laterally parallel to the second traveling unit.

6. The chamber excavator according to claim 4, characterized in that: One end of the second walking unit is hinged to the transition unit via a second hinge pin, and the second hinge pin is perpendicular to the plane where the transition unit is located.

7. The chamber excavator according to claim 4, characterized in that: When the chamber excavator is moving straight, the angle between the straight line where the longitudinal direction of the first walking unit is located and the straight line where the longitudinal direction of the transition unit is located is 0°; when turning, the angle between the straight line where the longitudinal direction of the first walking unit is located and the straight line where the longitudinal direction of the transition unit is located ranges from -45° to +45°.

8. The chamber excavator according to any one of claims 1 to 7, characterized in that: It also includes a bottom shovel unit, which is arranged in front of the first walking unit and is used for cleaning and transporting the mined rock minerals.

9. The chamber excavator according to claim 1, characterized in that: It also includes a controller, which is connected to the first walking unit, the cutting unit and the power system; the controller controls the walking and rotation of the first walking unit; and the rotation and cutting of the cutting unit; the controller controls the opening and closing of the power system.

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