Boom Assemblies and Excavating Equipment

Abstract

The present invention provides a working arm assembly and excavation equipment. The working arm assembly includes: a working arm, which includes: a plurality of unit arms; a first hydraulic cylinder, which is connected to two adjacent unit arms among the plurality of unit arms and can adjust the swing angle between the two adjacent unit arms; a rotating device, which is connected to the working arm and can drive the working arm to rotate; a pitching device, which is connected to the rotating device and can adjust the first swing angle of the rotating device relative to the pitching device. The working arm assembly provided by the present invention adjusts the position of the rotating device through the pitching device, and after the rotating device drives the working arm to rotate to a suitable angle, the swing angle between the two adjacent unit arms is adjusted through the first hydraulic cylinder, so that the unit arms connected to the working device among the plurality of unit arms can better fit the side wall and / or bottom plate of the tunnel, and can perform tunnel repair operations under special working conditions, thereby expanding the scope of use of the product.

Description

Technical Field

[0001] The present invention relates to the technical field of excavating equipment, and in particular to a working arm assembly and an excavating equipment. Background Art

[0002] As production activities in the tunnels are carried out, the tunnels will experience floor bulging and side wall deformation. Therefore, it is necessary to carry out tunnel repair operations such as laying the bottom, expanding the walls, and digging ditches in a timely manner. If manual labor is used for the operation, the work efficiency is low, the labor intensity of the workers is high, and there are great safety hazards. If mechanical equipment is used for the operation, the working arm of the current excavation equipment cannot fit well with the side walls and / or floor of the tunnel, so the operation effect is not ideal. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0004] To this end, a first aspect of the present invention provides a working arm assembly.

[0005] A second aspect of the present invention provides an excavating device.

[0006] In view of this, the first aspect of the present invention provides a working arm assembly, comprising: a working arm, the working arm comprising: a plurality of unit arms; a first hydraulic cylinder, the first hydraulic cylinder is connected to two adjacent unit arms among the plurality of unit arms, and can adjust the swing angle between the two adjacent unit arms; a rotating device, connected to the working arm, the rotating device can drive the working arm to rotate; a pitch device, connected to the rotating device, and can adjust the first swing angle of the rotating device relative to the pitch device.

[0007] The working arm assembly provided by the present invention comprises a working arm, a rotating device and a pitching device, wherein the working arm is used to connect the working device to operate in the tunnel, the working arm comprises a plurality of unit arms and a first hydraulic cylinder, the plurality of unit arms are connected in sequence, the first hydraulic cylinder connects two adjacent unit arms of the plurality of unit arms, and can adjust the swing angle between the two adjacent unit arms, the pitching device is arranged on the body of the excavating equipment, the pitching device is connected to the rotating device, and can adjust the first swing angle of the rotating device relative to the pitching device, the rotating device is connected to the working arm and can drive the working arm to rotate, and then the position of the rotating device is adjusted through the pitching device, after the rotating device drives the working arm to rotate to a suitable angle, the first hydraulic cylinder is used to adjust the first hydraulic cylinder ... The pressure cylinder adjusts the swing angle between two adjacent unit arms so that the unit arms connected to the working device among the multiple unit arms can better fit with the side walls and / or the bottom plate of the tunnel, and can perform tunnel repair operations such as lying on the ground, cleaning, digging ditches, tunnel repair and expansion, and ensure good working results, avoiding the problems of manual labor for operations, low work efficiency, high labor intensity for workers, and greater safety hazards. At the same time, it solves the problem in the related technology that the working arm of the excavation equipment cannot fit with the side walls and / or the bottom plate of the tunnel and cannot perform some tunnel repair operations, thereby improving work efficiency, improving operation safety, expanding the scope of use of the product, and ensuring good working results.

[0008] In addition, the working arm assembly in the above technical solution provided by the present invention may also have the following additional technical features:

[0009] In the above technical solution, further, the multiple unit arms include a first arm, a second arm and a third arm connected in sequence, the first arm is connected to the rotating device, the first hydraulic cylinder connects the first arm and the second arm, and can adjust the second swing angle of the second arm relative to the first arm; the working arm also includes a second hydraulic cylinder, the second hydraulic cylinder connects the second arm and the third arm, and can adjust the third swing angle of the third arm relative to the second arm.

[0010] In this technical solution, the plurality of unit arms include a first arm, a second arm and a third arm connected in sequence, that is, the second arm is located between the first arm and the third arm, that is, the working arm is a three-section arm structure. Specifically, the first arm is connected to the rotating device, that is, the rotating device rotates to drive the first arm to rotate, the first hydraulic cylinder connects the first arm and the second arm, and the first hydraulic cylinder can adjust the second swing angle of the second arm relative to the first arm by telescoping, and the working arm also includes a second hydraulic cylinder, the second hydraulic cylinder connects the second arm and the third arm, and the second hydraulic cylinder can adjust the swing angle of the third arm relative to the second arm by telescoping. Therefore, when the pitch device is actuated to make the rotating device in a suitable position, the rotating device then drives the first arm to rotate to a suitable position, and the first hydraulic cylinder adjusts the swing range of the second arm relative to the first arm, and the second hydraulic cylinder adjusts the swing range of the third arm relative to the second arm, so that the working position of the third arm can be adjusted, so that the third arm is within the working range, and a good working effect is ensured.

[0011] Specifically, by adjusting the swing range of the second arm relative to the first arm in the horizontal direction by the first hydraulic cylinder, the end of the second arm away from the first arm can be brought close to or fitted to the side wall, thereby improving the fit between the third arm and the side wall and / or the bottom plate of the tunnel. At the same time, since the hydraulic cylinder pitch device adjusts the swing range of the rotating device relative to the other end of the pitch device in the vertical direction, for example, the rotating device is brought close to the ground by the hydraulic cylinder pitch device, thereby making the first arm close to the ground. Then, the relative position of the third arm and the second arm is adjusted in the vertical direction by the second hydraulic cylinder, which is conducive to making the third arm fit the ground along the side wall and / or the bottom plate of the tunnel, that is, the third arm fits the ground along the length direction and fits the side wall and / or the bottom plate of the tunnel, thereby expanding the operating range of the product, and can realize tunnel repair operations such as undercover, cleaning, ditch digging, tunnel repair and expansion, and ensure good operating results.

[0012] In any of the above technical solutions, it further includes: a working device, which is arranged at one end of the third arm away from the second arm; a third hydraulic cylinder, which connects the working device and the third arm and can adjust the fourth swing angle of the working device relative to the third arm.

[0013] In this technical solution, the working arm assembly also includes a working device, which is arranged at one end of the third arm away from the second arm. The working device is used for performing auxiliary operations in the tunnel. The working device and the third arm are connected by a third hydraulic cylinder, and the fourth swing angle of the working device relative to the third arm can be adjusted. Then, when the third arm is in contact with the side wall of the tunnel and / or in contact with the bottom plate, the fourth hydraulic cylinder is used to provide power for the working device to ensure the accuracy and effectiveness of the operation of the working device and to ensure good working results.

[0014] In any of the above technical solutions, it further includes: a connecting device, which is arranged at one end of the third arm away from the second arm, and the working device and the connecting device are detachably connected; the third hydraulic cylinder connects the third arm and the connecting device, and can adjust the swing angle of the connecting device relative to the third arm.

[0015] In this technical solution, the working arm assembly includes a connecting device, which is arranged at one end of the third arm away from the second arm. The working device is connected to the third arm through the connecting device. The third hydraulic cylinder connects the third arm and the connecting device. The third hydraulic cylinder realizes the working action of the working device by adjusting the swing angle between the connecting device and the third arm, thereby ensuring a good working effect.

[0016] The working device is detachably connected to the connecting device. When the working device fails or wears out, the working device can be removed from the third arm for repair or replacement, which is beneficial to improving the efficiency of repair and replacement and reducing maintenance costs. At the same time, different working devices can be connected to the third arm through the connecting device respectively to meet different operating needs, further expanding the scope of use of the product and improving market competitiveness.

[0017] In any of the above technical solutions, further, the working device is at least one of the following: a bucket, a crushing device, a hydraulic shear, and an aerial work platform.

[0018] In this technical solution, the working device is a bucket, a crushing device, a hydraulic shear or a climbing work platform. The different structures of the working device can meet various operational needs in tunnel auxiliary operations such as undercover, cleaning, ditch digging, tunnel repair and expansion, and lifting and transportation of spare parts and materials, thereby expanding the scope of use of the product.

[0019] In any of the above technical solutions, it further includes: a fourth hydraulic cylinder, which connects the rotating device and the first arm and can adjust the fifth swing angle of the first arm relative to the rotating device; and / or a fifth hydraulic cylinder, which connects the pitch device and the rotating device and adjusts the sixth swing angle of the rotating device relative to the other end of the pitch device.

[0020] In this technical solution, the working arm assembly includes a fourth hydraulic cylinder, which connects the rotating device and the first arm. The fourth hydraulic cylinder can adjust the fifth swing angle of the first arm relative to the rotating device. Specifically, the swing angle range of the first arm relative to the rotating device is adjusted in the vertical direction, so that the working arm can meet the operating requirements of different heights, thereby expanding the scope of use of the product.

[0021] Specifically, by adjusting the swing range of the first arm relative to the rotating device in the vertical direction through the fourth hydraulic cylinder, the first arm can be located as high as possible to meet the needs of operations on the top of the tunnel, or the first arm can be located as low as possible to meet the needs of ground operations.

[0022] The working arm assembly also includes a fifth hydraulic cylinder. Specifically, the fifth hydraulic cylinder is a spiral swing hydraulic cylinder. The pitch device and the rotation device are connected through the fifth hydraulic cylinder, and the swing range of the rotation device relative to the other end of the pitch device is adjusted in the horizontal direction, which is beneficial to expand the working range of the working arm and expand the scope of application of the product.

[0023] Specifically, by adjusting the swing range of the rotating device relative to the pitch device in the horizontal direction through the fifth hydraulic cylinder, it can meet the operation requirements of tunnel side walls of different widths and the operation requirements at different positions in the tunnel, thereby expanding the scope of use of the product.

[0024] In any of the above technical solutions, it further includes: a protective cover, which is arranged on the outside of the first hydraulic cylinder and connected to the first hydraulic cylinder; and / or the cover is arranged on the outside of the second hydraulic cylinder and connected to the second hydraulic cylinder; and / or the cover is arranged on the outside of the third hydraulic cylinder and connected to the third hydraulic cylinder; and / or the cover is arranged on the outside of the fourth hydraulic cylinder and connected to the fourth hydraulic cylinder.

[0025] In this technical solution, the working arm assembly also includes a protective cover. On the one hand, the protective cover is arranged on the outside of the first hydraulic cylinder and is connected to the first hydraulic cylinder. It can be understood that the protective cover is arranged on the outside of part of the hydraulic cylinder to protect the first hydraulic cylinder to prevent materials from falling and damaging the first hydraulic cylinder during tunnel production or tunnel auxiliary operations, or the first hydraulic cylinder contacts the side wall and / or bottom plate of the tunnel and damages the first hydraulic cylinder. The setting of the protective cover is conducive to extending the service life of the first hydraulic cylinder, thereby improving the reliability of the first hydraulic cylinder. At the same time, the setting of the protective cover facilitates maintenance.

[0026] On the other hand, the protective cover is arranged on the outside of the second hydraulic cylinder, the third hydraulic cylinder, or the fourth hydraulic cylinder, and is respectively connected to the second hydraulic cylinder, the third hydraulic cylinder, and the fourth hydraulic cylinder, which can also achieve good protection, extend the service life of the hydraulic cylinder, and improve the reliability of the product.

[0027] On the other hand, a protective cover can be set outside any one, any two, any three, or any four of the first hydraulic cylinder, the second hydraulic cylinder, the third hydraulic cylinder, and the fourth hydraulic cylinder to protect the hydraulic cylinders in different positions.

[0028] In any of the above technical solutions, further, the range of the first swing angle is: 0° to 15°; the range of the second swing angle is: 0° to 15°; the range of the third swing angle is: 0° to 15°; the range of the sixth swing angle is: 0° to 35°; the angle range of the rotating device driving the working arm to rotate is: 0° to 360°.

[0029] In this technical solution, the range of the first swing angle is 0° to 15°, the range of the second swing angle is 0° to 15°, the range of the sixth swing angle is: 0° to 35°, and the angle range of the working arm driven by the rotating device is 0° to 360°. By setting the first swing angle, the second swing angle, the sixth swing angle and the rotation angle within a suitable range, the third arm can have a good fit with the side wall, and / or the bottom plate, and / or the top wall of the tunnel, so that the working arm assembly can achieve side excavation close to the ground, lying on the bottom, cleaning, digging ditches, tunnel repair and expansion, and lifting and transportation of accessories and materials, thereby expanding the scope of use of the product and ensuring good operating results.

[0030] In any of the above technical solutions, further, the first arm, and / or the second arm, and / or the third arm are steel structures; and / or the rotating device is a rotating gear ring structure; and / or the pitch device is a hydraulic structure.

[0031] In this technical solution, on the one hand, any one of the first arm, the second arm and the third arm is a steel structural member; on the other hand, any two of the first arm, the second arm and the third arm are steel structural members; on still another hand, the first arm, the second arm and the third arm are all steel structural members, and steel structural members have high strength and reliability, which is beneficial to improving the reliability of the product.

[0032] The rotating device is a rotating gear ring structure, and further, a large rotating gear ring structure, which has a strong bearing capacity, is conducive to improving the reliability and stability of the product, and ensures a good working effect, thereby expanding the scope of application of the product. It is understandable that the rotating device can also be other structures that meet the requirements.

[0033] The pitch device is a hydraulic structure, specifically, the pitch device is a hydraulic cylinder.

[0034] According to a second aspect of the present invention, there is provided an excavation device, comprising: a body; and a working arm assembly according to any one of the technical solutions of the first aspect, wherein the working arm assembly is arranged on the body.

[0035] The excavating equipment provided by the present invention comprises a fuselage and a working arm assembly of any of the above-mentioned technical solutions, and the working arm assembly is arranged on the fuselage. Since the excavating equipment comprises the working arm assembly of any of the above-mentioned technical solutions, it has all the beneficial effects of the working arm assembly, which will not be repeated here.

[0036] In the above technical solution, further, it also includes: a bulldozer, which is connected to the fuselage and is located below the pitch device of the working arm assembly.

[0037] In this technical solution, the excavation equipment also includes a bulldozer. The setting of the bulldozer expands the scope of use of the product. At the same time, due to the narrow space underground, the excavation equipment is often designed to be very narrow, resulting in poor stability. After adding the bulldozer, not only the operating stability of the machine body is improved, but also the role of leveling the tunnel can be played.

[0038] Specifically, the excavating device is an excavator.

[0039] Additional aspects and advantages of the present invention will become apparent from the following description or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0041] Figure 1 It shows a schematic structural diagram of an excavation device provided according to a first embodiment of the present invention;

[0042] Figure 2 Shows Figure 1 A partial structural schematic diagram of the embodiment shown;

[0043] Figure 3 A schematic structural diagram of an excavating device provided according to a second embodiment of the present invention is shown.

[0044] in, Figures 1 to 3 The corresponding relationship between the reference numerals and the component names is as follows:

[0045] 100 working arm assembly, 110 working arm, 111 first arm, 112 second arm, 113 third arm, 114 first hydraulic cylinder, 115 second hydraulic cylinder, 120 rotating device, 130 pitching device, 140 working device, 150 third hydraulic cylinder, 160 connecting device, 170 fourth hydraulic cylinder, 180 protective cover, 190 swivel joint, 200 excavating equipment, 210 fuselage, 212, cabin, 214, operating platform, 220 bulldozer, 230 walking mechanism. DETAILED DESCRIPTION

[0046] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0047] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0048] Refer to the following Figures 1 to 3 A working arm assembly 100 and an excavating device 200 according to some embodiments of the present invention are described.

[0049] Embodiment 1:

[0050] like Figures 1 to 3 As shown, according to a first aspect of the present invention, a working arm assembly 100 is provided, comprising a working arm 110 , a rotating device 120 and a pitching device 130 .

[0051] Specifically, Figure 1 and Figure 2 As shown, the working arm 110 is used to connect the working device to work on the tunnel. The working arm 110 includes a plurality of unit arms and a first hydraulic cylinder 114. The plurality of unit arms are connected in sequence. The first hydraulic cylinder 114 connects two adjacent unit arms among the plurality of unit arms and can adjust the swing angle between the two adjacent unit arms. The pitch device 130 is arranged on the body of the excavating equipment 200. The pitch device 130 is connected to the rotating device 120 and can adjust the first swing angle of the rotating device relative to the pitch device 130. The rotating device 120 is connected to the working arm 110 and can drive the working arm 110 to rotate, and then the position of the rotating device 120 is adjusted by the pitch device 130. The rotating device 120 drives the working arm 110 to rotate at a suitable angle Afterwards, the swing angle between two adjacent unit arms is adjusted by the first hydraulic cylinder 114, so that the unit arms connected to the working device among the multiple unit arms can be well fitted with the side wall and / or the bottom plate of the tunnel, and can perform tunnel repair operations such as lying, cleaning, digging ditches, tunnel repair and expansion, and ensure good working results, avoiding the problems of manual labor, low work efficiency, high labor intensity of workers, and greater safety hazards. At the same time, it solves the problem that the working arm of the excavation equipment 200 in the related art cannot fit with the side wall and / or the bottom plate of the tunnel and cannot perform partial tunnel repair operations, thereby improving work efficiency, improving the safety of operations, expanding the scope of use of the product, and ensuring good working results. Among them, the bottom plate of the tunnel is the ground.

[0052] Furthermore, the pitch device 130 adjusts the position of the rotating device 120 relative to the vehicle body in the vertical direction, so that the rotating device 120 drives the working arm 110 to meet the working requirements as much as possible in the vertical direction. When the working arm 110 rotates to a suitable position, the first hydraulic cylinder 114 adjusts the swing range between two adjacent unit arms in the horizontal direction, so that a unit arm connected to the working device can better fit the side wall and / or bottom plate of the lane, expand the working range, and meet the working requirements of special working conditions. Specifically, the multiple unit arms can be three, four, five or other numbers that meet the requirements.

[0053] Embodiment 2:

[0054] like Figures 1 to 3 As shown, in one embodiment of the present invention, on the basis of the above-mentioned embodiment 1, further, the multiple unit arms include a first arm 111, a second arm 112 and a third arm 113 connected in sequence, the first arm 111 is connected to the rotating device 120, the first hydraulic cylinder 114 connects the first arm 111 and the second arm 112, and can adjust the second swing angle of the second arm 112 relative to the first arm 111; the working arm assembly 100 also includes a second hydraulic cylinder 115, the second hydraulic cylinder 115 connects the second arm 112 and the third arm 113, and can adjust the third swing angle of the third arm 113 relative to the second arm 112.

[0055] In this embodiment, if Figure 1 and Figure 2 As shown, the multiple unit arms include a first arm 111, a second arm 112 and a third arm 113 connected in sequence, that is, the second arm 112 is located between the first arm 111 and the third arm 113, that is, the working arm assembly 100 is a three-section arm structure. Specifically, the first arm 111 is connected to the rotating device 120, that is, the rotating device 120 rotates to drive the first arm 111 to rotate, the first hydraulic cylinder 114 connects the first arm 111 and the second arm 112, and the first hydraulic cylinder 114 can adjust the second swing angle of the second arm 112 relative to the first arm 111 by telescoping, and the working arm assembly 100 also includes a second hydraulic cylinder 115, which connects the second arm 112 and the third arm 113, and the second hydraulic cylinder 115 can adjust the swing angle of the third arm 113 relative to the second arm 112 by telescoping. Therefore, when the pitch device 130 is actuated to make the rotating device 120 located at a suitable position, the rotating device 120 then drives the first arm 111 to rotate to a suitable position, and the first hydraulic cylinder 114 adjusts the swing range of the second arm 112 relative to the first arm 111, and the second hydraulic cylinder 115 adjusts the swing range of the third arm 113 relative to the second arm 112, so that the working position of the third arm 113 can be adjusted, so that the third arm 113 is located within the working range, and a good working effect is ensured.

[0056] Specifically, by adjusting the swing range of the second arm 112 relative to the first arm 111 in the horizontal direction by the first hydraulic cylinder 114, the end of the second arm 112 away from the first arm 111 can be close to or fit with the side wall, thereby improving the fit between the third arm 113 and the side wall and / or the bottom plate of the tunnel. At the same time, since the hydraulic cylinder pitch device 130 adjusts the swing range of the rotating device 120 relative to the other end of the pitch device 130 in the vertical direction, for example, the rotating device 120 is brought close to the ground by the hydraulic cylinder pitch device 130, thereby making the first arm 111 close to the ground. Then, the relative position of the third arm 113 and the second arm 112 is adjusted in the vertical direction by the second hydraulic cylinder 115, which is conducive to making the third arm 113 fit with the ground along the side wall of the tunnel, that is, the third arm 113 fits with the ground along the length direction and fits with the side wall of the tunnel, thereby expanding the operating range of the product, and can realize tunnel repair operations such as undercover, cleaning, digging ditches, and tunnel expansion, and ensure good operating results.

[0057] Embodiment 3:

[0058] like Figures 1 to 3 As shown, in one embodiment of the present invention, on the basis of the above-mentioned embodiment 2, it further includes: an operating device 140, which is arranged at one end of the third arm 113 away from the second arm 112; a third hydraulic cylinder 150, which connects the operating device 140 and the third arm 113, and can adjust the fourth swing angle of the operating device 140 relative to the third arm 113.

[0059] In this embodiment, if Figure 1 and Figure 2 As shown, the working arm assembly 100 also includes a working device 140, which is arranged at one end of the third arm 113 away from the second arm 112. The working device 140 is used for auxiliary operations in the tunnel. The working device 140 and the third arm 113 are connected by the third hydraulic cylinder 150, and the fourth swing angle of the working device 140 relative to the third arm 113 can be adjusted. Then, when the third arm 113 is in contact with the side wall and / or the bottom plate of the tunnel, the fourth hydraulic cylinder 170 is used to provide power for the working device 140 to ensure the accuracy and effectiveness of the operation of the working device 140 and to ensure good working results.

[0060] Furthermore, it also includes: a connecting device 160, which is arranged at one end of the third arm 113 away from the second arm 112, and the working device 140 and the connecting device 160 are detachably connected; the third hydraulic cylinder 150 connects the third arm 113 and the connecting device 160, and can adjust the swing angle between the connecting device 160 and the third arm 113.

[0061] Specifically, the working arm assembly 100 includes a connecting device 160, which is arranged at one end of the third arm 113 away from the second arm 112. The working device 140 is connected to the third arm 113 through the connecting device 160. The third hydraulic cylinder 150 connects the third arm 113 and the connecting device 160. The third hydraulic cylinder 150 realizes the working action of the working device 140 by adjusting the swing angle between the connecting device 160 and the third arm 113, thereby ensuring a good working effect.

[0062] The operating device 140 is detachably connected to the connecting device 160. When the operating device 140 fails or is worn, the operating device 140 can be removed from the third arm 113 for repair or replacement, which is beneficial to improving the efficiency of repair and replacement and reducing maintenance costs. At the same time, different operating devices 140 can be connected to the third arm 113 through the connecting device 160 respectively to meet different operating requirements, further expanding the scope of use of the product and improving market competitiveness.

[0063] Specifically, the working device 140 is a bucket, a crushing device, a hydraulic shear or a climbing work platform. The different structures of the working device 140 can meet various operational needs in tunnel auxiliary operations such as undercover, cleaning, ditch digging, tunnel repair and expansion, and lifting and transportation of spare parts and materials, thereby expanding the scope of use of the product.

[0064] Furthermore, the crushing device is a crushing hammer, and may also be a blade structure, or may be other structures that meet the requirements.

[0065] Embodiment 4:

[0066] like Figures 1 to 3 As shown, in one embodiment of the present invention, based on any one of the above-mentioned embodiments 2 or 3, it further includes: a fourth hydraulic cylinder 170, the fourth hydraulic cylinder 170 connects the rotating device 120 and the first arm 111, and can adjust the fifth swing angle of the first arm 111 relative to the rotating device 120; and / or a fifth hydraulic cylinder, the fifth hydraulic cylinder connects the pitch device 130 and the rotating device 120, and adjusts the sixth swing angle of the rotating device 120 relative to the other end of the pitch device 130.

[0067] In this embodiment, if Figure 1 and Figure 2 As shown, the working arm assembly 100 includes a fourth hydraulic cylinder 170, which connects the rotating device 120 and the first arm 111. The fourth hydraulic cylinder 170 can adjust the fifth swing angle of the first arm 111 relative to the rotating device 120. Specifically, the swing angle range of the first arm 111 relative to the rotating device 120 is adjusted in the vertical direction, thereby enabling the working arm assembly 100 to meet the operating requirements of different heights, thereby expanding the scope of use of the product.

[0068] Specifically, by adjusting the swing range of the first arm 111 relative to the rotating device 120 in the vertical direction through the fourth hydraulic cylinder 170, the first arm 111 can be located as high as possible to meet the needs of operations on the top of the tunnel, or the first arm 111 can be located as low as possible to meet the needs of ground operations.

[0069] Furthermore, the working arm assembly 100 also includes a swivel joint 190, which connects the rotating device 120 and the first arm 111, and the fourth hydraulic cylinder 170 connects the first arm 111 and the swivel joint 190. The setting of the swivel joint 190 is beneficial to improving the flexibility and reliability of the rotation of the first arm 111, and the swing angle of the first arm 111 relative to the rotating device 120 is adjusted by the fourth hydraulic cylinder 170.

[0070] The working arm assembly 100 also includes a fifth hydraulic cylinder (not shown in the figure). Specifically, the fifth hydraulic cylinder is a spiral swing hydraulic cylinder, which connects the pitch device 130 and the rotation device 120 and adjusts the swing range of the rotation device 120 relative to the other end of the pitch device 130 in the horizontal direction, thereby helping to expand the working range of the working arm assembly 100 and expand the scope of application of the product.

[0071] Specifically, by adjusting the swing range of the rotating device 120 relative to the pitching device 130 in the horizontal direction through the fifth hydraulic cylinder, it can meet the operation requirements of the side walls of tunnels of different widths and the operation requirements at different positions in the tunnel, thereby expanding the scope of use of the product.

[0072] Embodiment 5:

[0073] like Figures 1 to 3 As shown, in one embodiment of the present invention, on the basis of any one of the above-mentioned embodiments 2 to 4, it also includes: a protective cover 180, which is arranged on the outside of the first hydraulic cylinder 114 and connected to the first hydraulic cylinder 114; and / or the cover is arranged on the outside of the second hydraulic cylinder 115 and connected to the second hydraulic cylinder 115; and / or the cover is arranged on the outside of the third hydraulic cylinder 150 and connected to the third hydraulic cylinder 150; and / or the cover is arranged on the outside of the fourth hydraulic cylinder 170 and connected to the fourth hydraulic cylinder 170.

[0074] In this embodiment, if Figure 1 and Figure 2As shown, the working arm assembly 100 also includes a protective cover 180. On the one hand, the protective cover 180 is arranged on the outside of the first hydraulic cylinder 114 and is connected to the first hydraulic cylinder 114. It can be understood that the protective cover is arranged on the outside of part of the hydraulic cylinders to protect the first hydraulic cylinder 114 to prevent the first hydraulic cylinder 114 from being damaged by falling materials or the first hydraulic cylinder 114 from contacting with the side wall and / or bottom plate of the tunnel during tunnel production or tunnel auxiliary operations. The provision of the protective cover 180 is conducive to extending the service life of the first hydraulic cylinder 114, thereby improving the reliability of the first hydraulic cylinder 114. At the same time, the provision of the protective cover 180 facilitates maintenance.

[0075] On the other hand, the protective cover 180 is arranged on the outside of the second hydraulic cylinder 115, the third hydraulic cylinder 150, or the fourth hydraulic cylinder 170, and is respectively connected to the second hydraulic cylinder 115, the third hydraulic cylinder 150, and the fourth hydraulic cylinder 170, which can also achieve good protection, extend the service life of the hydraulic cylinder, and improve the reliability of the product.

[0076] On the other hand, a protective cover 180 can be set outside any one, any two, any three, or any four of the first hydraulic cylinder 114, the second hydraulic cylinder 115, the third hydraulic cylinder 150, and the fourth hydraulic cylinder 170 to protect the hydraulic cylinders in different positions.

[0077] Specifically, the range of the first swing angle is 0° to 15°, the range of the second swing angle is 0° to 15°, the range of the sixth swing angle is: 0° to 35°, and the angle range of the rotating device 120 driving the working arm assembly 100 to rotate is 0° to 360°. By setting the first swing angle, the second swing angle, the sixth swing angle and the rotation angle within a suitable range, the third arm 113 can have a good fit with the side wall, and / or the bottom plate, and / or the top wall of the tunnel, so that the working arm assembly 100 can achieve side excavation close to the ground, lying on the ground, cleaning, digging ditches, tunnel repair and expansion, and lifting and transportation of accessories and materials, thereby expanding the scope of use of the product and ensuring good operating results.

[0078] Further, the range of the first swing angle is 0° to 15°, which can be understood as the swing range of the rotating device 120 relative to the other end of the pitch device 130 is 0° to 30°; the range of the second swing angle is 0° to 15°, which can be understood as the swing range of the second arm 112 relative to the first arm 111 is 0° to 30°; the range of the sixth swing angle is 0° to 35°, which can be understood as the swing range of the rotating device 120 relative to the other end of the pitch device 130 is 0° to 35°. It can be understood that the first swing angle, the second swing angle, and the sixth swing angle can also be other angles that meet the requirements. Specifically, the first swing angle is 8°, 12° or 15°; the second swing angle is 8°, 12° or 15°; the sixth swing angle is 10°, 20° or 35°. Specifically, the range of the third swing angle, the fourth swing angle, and the fifth swing angle is 0° to 90°.

[0079] Further, the first arm 111, and / or the second arm 112, and / or the third arm 113 are steel structures; and / or the rotating device 120 is a rotary gear ring structure; and / or the pitch device 130 is a hydraulic structure.

[0080] Specifically, on the one hand, any one of the first arm 111, the second arm 112 and the third arm 113 is a steel structural member; on the other hand, any two of the first arm 111, the second arm 112 and the third arm 113 are steel structural members; on yet another hand, the first arm 111, the second arm 112 and the third arm 113 are all steel structural members, and steel structural members have high strength and reliability, which is beneficial to improving the reliability of the product.

[0081] Specifically, the steel structural member is a high-strength structural steel plate. For example, the first arm 111, the second arm 112, and the third arm 113 are all made of a steel plate with a yield strength of 690 MPa. The structure is more practical and reliable, and has a longer service life.

[0082] The rotating device 120 is a rotating gear ring structure, and further, a large rotating gear ring structure, which has a strong bearing capacity, is conducive to improving the reliability and stability of the product, and ensures a good working effect, thereby expanding the application range of the product. It is understandable that the rotating device 120 can also be other structures that meet the requirements.

[0083] The pitch device 130 is a hydraulic structure, specifically, the pitch device 130 is a hydraulic cylinder.

[0084] Embodiment 6:

[0085] like Figures 1 to 3As shown, according to the second aspect of the present invention, there is provided an excavation device 200, comprising a fuselage 210 and a working arm assembly 100 of any of the above-mentioned technical solutions, wherein the working arm assembly 100 is arranged on the fuselage 210. Since the excavation device 200 comprises the working arm assembly 100 of any of the above-mentioned technical solutions, it has all the beneficial effects of the working arm assembly 100, which will not be repeated here.

[0086] Furthermore, it also includes: a bulldozer 216 connected to the fuselage 210 and located below the pitch device 130 of the working arm assembly 100 .

[0087] Specifically, Figure 1 and Figure 3 As shown, the excavation equipment 200 also includes a bulldozer 216. The provision of the bulldozer 216 expands the application range of the product. At the same time, due to the narrow space underground, the excavation equipment 200 is often designed to be very narrow, resulting in poor stability. After adding the bulldozer 216, not only the operating stability of the body 210 is improved, but also the role of leveling the tunnel can be played.

[0088] Specifically, the excavating device is an excavator. Specific embodiments

[0090] With the comprehensive promotion of high-yield and high-efficiency technology in underground coal mines in my country and the continuous progress of modern production technology, most of the main production equipment of comprehensive mining and excavation working faces has been mechanized, while auxiliary operations such as tunnel repair operations, including undercover, cleaning, digging ditches, tunnel repair and expansion, and lifting and transportation of accessories and materials, still rely mainly on manual labor, and mechanization development is slow. Production auxiliary operations are often time-consuming and labor-intensive, not only with low work efficiency and high labor intensity for workers, but also with great safety hazards.

[0091] Due to the influence of mining pressure changes, with the development of tunnel production activities, bottom bulging often occurs in areas with soft bottom plates, and deformation of the two sides is also a common phenomenon. It is necessary to carry out tunnel repair operations such as lying on the bottom, expanding the sides, and digging ditches in time. This requires the operating machinery's arm to be able to stick to the side walls and / or bottom plates as closely as possible; in addition, the lifting and transportation of accessories and materials, and the cleaning of floating coal in tunnels and under belt conveyors during the comprehensive mining and excavation production process are also important daily tasks. This requires the operating machinery to be able to truly realize side excavation close to the ground, and must be able to complete the above-mentioned complex operations under narrow space conditions, with complete and reliable safety protection.

[0092] For this reason, Figure 1 , Figure 2 and Figure 3As shown, the present invention provides an excavation device 200, including a body 210, a working arm assembly 100 and a bulldozer 216. Since the underground space is narrow, the body 210 of the tunnel repair equipment is often designed to be very narrow, so the stability is poor. After adding the bulldozer 216, not only the operating stability of the body 210 is improved, but also the tunnel can be leveled, which can achieve multiple goals at one stroke.

[0093] The working arm assembly 100 is a three-section arm structure, specifically including: a pitch device 130, a rotating device 120, a first arm 111, a second arm 112, a third arm 113, a working device 140, a first hydraulic cylinder 114, a second hydraulic cylinder 115, a third hydraulic cylinder 150, a fourth hydraulic cylinder 170, a fifth hydraulic cylinder and a swivel joint 190. The pitch device 130 is arranged on the vehicle body, one end of the rotating device 120 is connected to the pitch device 130, and the other end is connected to the swivel joint 190. The swivel joint 190 is also connected to the first arm 111. The pitch device 130 can drive the rotating device 120 to swing up and down relative to the vehicle body, and the rotating device 120 can drive the first arm 111 to rotate. The fourth hydraulic cylinder 170 connects the first arm 111 and the swivel joint 190, and thus can adjust the swing angle of the first arm 111 relative to the swivel joint 190, and can adjust the fifth swing angle of the first arm 111 relative to the rotating device 120. The second arm 112 is arranged at one end of the first arm 111 away from the swivel joint 190, and the second arm 112 is located between the first arm 111 and the third arm 113. The end of the third arm 113 away from the second arm 112 is connected to a working device. The first hydraulic cylinder 114 connects the first arm 111 and the second arm 112, and adjusts the swing range of the second arm 112 relative to the first arm 111. The second hydraulic cylinder 115 connects the third arm 113 and the second arm 112, and adjusts the swing range of the third arm 113 relative to the second arm 112. The third arm 113 is connected to the working device and the third arm 113, and adjusts the swing range of the working device relative to the third arm 113. The fifth hydraulic cylinder connects the pitch device 130 and the rotation device 120, and adjusts the sixth swing angle of the rotation device 120 relative to the other end of the pitch device 130.

[0094] Specifically, the pitch device 130 can achieve a pitch of 0° to 15°, that is, the pitch device 130 can adjust the first swing angle of the rotating device 120 relative to the end connected to the vehicle body in the vertical direction to 0° to 15°. Further, the pitch device 130 is a pitch hydraulic cylinder. When the pitch hydraulic cylinder is fully extended, the angle between the rotating device 120 and the vehicle body is 15°. Then, the rotating device 120 drives the first arm 111 to rotate 90° through the swivel joint 190. The swing range of the first arm 111 relative to the swivel joint 190, that is, the fifth swing angle, is adjusted in the vertical direction by the fourth hydraulic cylinder 170 to make the first arm 111 as close to the ground as possible. Then, the swing range of the second arm 112 relative to the first arm 111, that is, the second swing angle, is adjusted by the first hydraulic cylinder 114 to make the second arm 112 as far away from the end of the first arm 111 as possible. Then, the second hydraulic cylinder 115 is used to fine-tune the swing range of the third arm 113 relative to the second arm 112 in the vertical direction, that is, the third swing angle, so that the third arm 113 can be in contact with the ground, that is, at the same time in contact with the side wall and the ground. Through the fourth hydraulic cylinder 170, the third arm 113 drives the working device 140 to achieve ground contact operation, avoiding the problems of manual labor, low work efficiency, high labor intensity of workers, and greater safety hazards. At the same time, it solves the problem that the working arm of the excavation equipment 200 in the related technology cannot be in contact with the side wall and / or bottom plate of the tunnel, cannot be in contact with the ground, and cannot perform partial tunnel repair operations, thereby improving work efficiency, improving work safety, expanding the scope of application of the product, and ensuring good working results. Specifically, when the third arm 113 is in contact with the ground and with the side wall and / or bottom plate of the tunnel, the angle between the first arm 111 and the ground is 15°, that is, the angle between the first arm 111 and the third arm 113 is 165°.

[0095] Specifically, when the third arm 113 is in contact with the ground, if the working device is a bucket, the bottom of the fuselage 210 (such as a belt conveyor) can be dug out; if the working device is a breaker or a small bucket, the ditch excavation operation can be directly performed.

[0096] Furthermore, by adjusting the swing range of the rotating device 120 relative to the pitching device 130 in the horizontal direction by the fifth hydraulic cylinder, the working arm assembly 100 can be swung left and right by ±35°, meeting the operation requirements of the side walls of lanes of different widths and the operation requirements of different positions in the lanes, thereby expanding the scope of use of the product. The second arm 112 and the first arm 111 are connected by the first hydraulic cylinder 114, so that the second arm 112 can be swung left and right by ±15° relative to the first arm 111. The pitching device 130 is articulated with the vehicle body and the rotating device 120, so that the rotating device 120 can be swung up and down by ±15° relative to the vehicle body.

[0097] On the second arm 112 , the third hydraulic cylinder 150 is protected by a protective cover 180 , that is, the third hydraulic cylinder 150 is wrapped therein, so that the third hydraulic cylinder 150 is safer to use and more convenient to maintain.

[0098] The first arm 111 , the second arm 112 , and the third arm 113 are made of high-strength structural steel plates to ensure overall structural strength.

[0099] Furthermore, the body 210 includes a cabin 212 and an operating platform 214, and the excavating equipment 200 further includes a walking mechanism 230 located below the body 210. Specifically, the hydraulic cylinder involved in the present invention may be an oil cylinder.

[0100] In the description of the present invention, the term "plurality" refers to two or more than two. Unless otherwise clearly defined, the orientation or positional relationship indicated by the terms "upper" and "lower" is based on the orientation or positional relationship described in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention. The terms "connection", "installation", "fixation", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0101] In the description of the present invention, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In the present invention, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0102] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A working arm assembly in which a working arm is fitted with a side wall and / or a bottom plate of a roadway, characterized in that: include: A working arm, the working arm comprising: Multiple unit arms; The first hydraulic cylinder; A rotating device connected to the working arm, wherein the rotating device can drive the working arm to rotate; A pitch device, one end of which is connected to the rotating device and capable of adjusting a first swing angle of the rotating device relative to the other end of the pitch device; The plurality of unit arms include a first arm, a second arm and a third arm connected in sequence, the first arm is connected to the rotating device, the first hydraulic cylinder connects the first arm and the second arm and is capable of adjusting a second swing angle of the second arm relative to the first arm; The first hydraulic cylinder adjusts the second arm to swing left and right relative to the first arm; The working arm further includes a second hydraulic cylinder, which connects the second arm and the third arm and is capable of adjusting a third swing angle of the third arm relative to the second arm.

2. The working arm assembly according to claim 1, wherein the working arm is fitted with the side wall and / or bottom plate of the roadway, Also includes: An operating device is provided at an end of the third arm away from the second arm; The third hydraulic cylinder connects the working device and the third arm and is capable of adjusting a fourth swing angle of the working device relative to the third arm.

3. The working arm assembly according to claim 2, wherein the working arm is fitted with the side wall and / or bottom plate of the roadway, Also includes: A connecting device is provided at an end of the third arm away from the second arm, and the operating device is detachably connected to the connecting device; The third hydraulic cylinder connects the third arm and the connecting device, and is capable of adjusting a swing angle between the connecting device and the third arm.

4. The working arm assembly according to claim 3, wherein the working arm is fitted with the side wall and / or bottom plate of the roadway, The operating device is at least one of the following: Bucket, crushing device, hydraulic shears, and aerial work platform.

5. The working arm assembly according to any one of claims 2 to 4, wherein the working arm and the side wall and / or bottom plate of the roadway are in contact with each other, Also includes: a fourth hydraulic cylinder, the fourth hydraulic cylinder connecting the rotating device and the first arm and capable of adjusting a fifth swing angle of the first arm relative to the rotating device; and / or A fifth hydraulic cylinder connects the pitch device and the rotation device and adjusts a sixth swing angle of the rotation device relative to the other end of the pitch device.

6. The working arm assembly according to claim 5, wherein the working arm is fitted with the side wall and / or bottom plate of the roadway, Also includes: a protective cover, which is arranged outside the first hydraulic cylinder and connected to the first hydraulic cylinder; and / or The cover is arranged outside the second hydraulic cylinder and connected to the second hydraulic cylinder; and / or The cover is arranged outside the third hydraulic cylinder and connected to the third hydraulic cylinder; and / or The cover is arranged outside the fourth hydraulic cylinder and connected with the fourth hydraulic cylinder.

7. The working arm assembly according to claim 5, wherein the working arm is fitted with the side wall and / or bottom plate of the roadway, The range of the first swing angle is: 0° to 15°; The range of the second swing angle is: 0° to 15°; The range of the sixth swing angle is: 0° to 35°; The angle range of the working arm driven by the rotating device to rotate is: 0° to 360°.

8. An excavation device, characterized in that: include: body; as well as The working arm assembly according to any one of claims 1 to 7, wherein the working arm assembly, in which the working arm is in contact with the side wall and / or bottom plate of the tunnel, is arranged on the fuselage.

9. The excavation equipment according to claim 8, characterized in that Also includes: The bulldozer is connected to the machine body and is located below the pitching device of the working arm assembly in which the working arm is in contact with the side wall and / or bottom plate of the roadway.

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