Mechanical arm for heading machine and heading machine

Abstract

The utility model provides a mechanical arm for a heading machine and the heading machine, and relates to the technical field of heading machines, the mechanical arm comprises a base, one side of the base is hinged with a fixed arm, the mechanical arm for the heading machine and the heading machine start a driving motor, the driving motor drives a shaft rod to rotate, and the shaft rod rotates after rotating. After the first helical gear rotates, the second helical gear drives the first helical gear in meshed connection with the second helical gear to rotate synchronously, after the first helical gear rotates, the first helical gear drives the coaxially-connected stacked spiral blade assembly to rotate, and through the spiral conveying effect of the stacked spiral blade assembly, the spiral conveying effect of the stacked spiral blade assembly is achieved. Materials can be conveyed into the fixed arm from the movable arm, meanwhile, the two bent stirring blocks rotate synchronously, the materials conveyed into the fixed arm are stirred and pushed, the materials are made to move towards the slag guiding pipe, the materials can be prevented from making direct contact with the driving structure through protection of the connecting piece, and therefore the driving structure is protected against abrasion.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of heading machine, especially to a mechanical arm for heading machine and heading machine. BACKGROUND

[0002] The open type tunnel boring machine is used for heading in the coal mine inclined shaft or rock roadway, and most of the rock debris is transported to the outside through the cooperation of the cutting part and the transportation device. However, when the TBM (Tunnel Boring Machine) passes through the broken stratum, the rocks above and on both sides of the tail part of the main machine are prone to collapse, which will then fall on the tail part of the main machine and the bottom arch assembly. Especially when heading in the stratum with high degree of fragmentation, the falling rock debris and rock blocks will be stuck between the main machine shield and the unsupported roadway roof, seriously hindering the normal heading work.

[0003] The existing patent CN118327605B discloses a drilling type slag removal and sampling mechanical arm for a full-face heading machine, which comprises a base, an extension arm, a rotating seat, a first driving assembly, a drilling head, a stacked spiral blade assembly, a slag guide pipe, a negative pressure unit and an angle adjusting mechanism. The drilling head is connected with the rotating seat, and the drilling head comprises a shell and a plurality of rotating knives. The shell has a third channel along the axial direction, and the third channel is communicated with the second channel. The plurality of rotating knives are arranged in a ring array around the central axis of the shell, and are fixed to the shell and located at one end of the third channel. Some of the rotating knives protrude from the shell. The rotating knives have the same helical angle. The fourth channel is communicated with the third channel between adjacent rotating knives. The present application effectively solves the problems of low slag removal efficiency, easy injury to operators and damage to the heading machine, and inability to perform deep drilling sampling on the rock wall in the prior art.

[0004] However, in this operation, the universal shaft is installed inside the fixed arm for power transmission. Due to design reasons, part of the universal shaft is exposed in the conveying channel of the fixed arm. The material moves continuously during the conveying process, especially when passing through the conveying channel of the fixed arm, which is prone to collide with the universal shaft. These collisions may be caused by irregular shape of the material, high conveying speed or turbulent flow in the conveying channel, etc. Frequent collisions can cause wear on the surface of the universal shaft, gradually weakening its mechanical properties. Severe collisions may even cause damage to the universal shaft, affecting the normal operation of the mechanical arm. Wear and damage not only increase maintenance costs, but also reduce the working efficiency and reliability of the mechanical arm.

[0005] Therefore, it is necessary to provide a new mechanical arm for heading machine and heading machine to solve the above technical problems. UTILITY MODEL CONTENTS

[0006] To solve the above technical problems, the utility model provides a mechanical arm for heading machine and heading machine.

[0007] The tunneling machine mechanical arm provided in the first aspect of the present application adopts the following technical scheme: a base is provided, a fixed arm is hingedly connected to one side of the base, an active arm is slidably connected to the inner side wall of the fixed arm, a connecting piece is fixedly connected to the inner side wall of the fixed arm, a stacked screw blade assembly is rotatably connected to the inner side wall of the active arm, the stacked screw blade assembly is connected to one side of the connecting piece, a driving piece is arranged on one side of the fixed arm, the driving piece penetrates through the fixed arm and is connected to one end of the connecting piece, and a bending prying block is arranged on the other side of the driving piece.

[0008] Further, the driving piece comprises a driving motor fixedly connected to the outer surface of the fixed arm, a shaft rod fixedly connected to the output end of the driving motor, and the shaft rod is rotatably connected to the side wall of the fixed arm, and one end of the shaft rod away from the driving motor is fixedly connected to the connecting piece.

[0009] Further, one end of the bending prying block is provided with a fixed ring, and the inner side wall of the fixed ring is fixedly connected to the outer surface of the shaft rod.

[0010] Further, the connecting piece comprises a protective shell, a bevel gear one and a bevel gear two are rotatably connected to the inner wall of the protective shell, the bevel gear one and the bevel gear two are meshingly connected, one end of the bevel gear one is fixedly connected to one end of the stacked screw blade assembly away from the active arm, and the bevel gear two is fixedly connected to the shaft rod.

[0011] Further, a slag guide pipe is arranged at the lower end of the fixed arm away from the active arm.

[0012] The tunneling machine provided in the second aspect of the present application adopts the following technical scheme: the tunneling machine comprises any one of the tunneling machine mechanical arms.

[0013] Compared with the related art, the tunneling machine mechanical arm and the tunneling machine have the following beneficial effects:

[0014] The tunneling machine mechanical arm and the tunneling machine, by starting the driving motor, the driving motor drives the shaft rod to rotate, after the shaft rod rotates, the two bending prying blocks on the outside and the bevel gear two are driven to rotate synchronously, after the bevel gear two rotates, the bevel gear one meshingly connected thereto is driven to rotate synchronously, after the bevel gear one rotates, the coaxially connected stacked screw blade assembly is driven to rotate, through the screw conveying action of the stacked screw blade assembly, the material can be conveyed from the active arm to the fixed arm, at the same time, the two bending prying blocks rotate synchronously and pry and propel the material conveyed into the fixed arm, so that the material moves towards the slag guide pipe direction, through the protection of the connecting piece, the material can be prevented from directly contacting the driving structure, so as to protect the driving structure from abrasion.

[0015] The bending and poking block combines the poking effect and the spiral conveying effect of the stacked-screw blade assembly, so that the conveying speed of the material is significantly improved, the overall conveying efficiency is improved, and the energy consumption is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A schematic diagram of the overall structure of the mechanical arm for the heading machine and the heading machine is provided;

[0017] Figure 2 A schematic diagram of the partial cross-sectional structure of the mechanical arm for the heading machine and the heading machine is provided;

[0018] Figure 3 A schematic diagram of the structure of the connecting piece is provided.

[0019] In the drawing, reference numerals are as follows: 1, base; 2, fixed arm; 3, driving motor; 4, shaft rod; 5, fixed ring; 6, bending and poking block; 7, slag guide pipe; 8, movable arm; 9, stacked-screw blade assembly; 10, protective shell; 11, helical gear one; 12, helical gear two. DETAILED DESCRIPTION

[0020] 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.

[0021] Please refer to Figure 1 , Figure 2 and Figure 3 , Figure 1 A schematic diagram of the overall structure of the mechanical arm for the heading machine and the heading machine is provided; Figure 2 A schematic diagram of the partial cross-sectional structure of the mechanical arm for the heading machine and the heading machine is provided; Figure 3 A schematic diagram of the structure of the connecting piece is provided.

[0022] In the specific implementation process, such as Figures 1 to 3As shown, the tunneling machine robotic arm provided in the first aspect of this application adopts the following technical solution: it includes a base 1, a fixed arm 2 hinged to one side of the base 1, a movable arm 8 slidably connected to the inner wall of the fixed arm 2 and a connecting member fixedly connected thereto, a stacked blade assembly 9 rotatably connected to the inner wall of the movable arm 8, and the stacked blade assembly 9 is connected to one side of the connecting member, a driving member is provided on one side of the fixed arm 2, the driving member passes through the fixed arm 2 and is connected to one end of the connecting member, bending and actuating blocks 6 are also provided on both sides of the driving member and the connecting member, a fixed ring 5 is provided at one end of the bending and actuating block 6, the inner wall of the fixed ring 5 is fixedly connected to the outer surface of the shaft 4, and the cross-sectional dimension of the fixed ring 5 is larger than that of the bending and actuating block 6, which improves the stability during connection.

[0023] The driving component includes a drive motor 3, which is fixedly connected to the outer surface of the fixed arm 2. A shaft 4 is fixedly connected to the output end of the drive motor 3. The shaft 4 is rotatably connected to the side wall of the fixed arm 2. The end of the shaft 4 away from the drive motor 3 is fixedly connected to the connector.

[0024] The connecting component includes a protective housing 10. The inner wall of the protective housing 10 is rotatably connected to a helical gear 11 and a helical gear 2 12. The helical gear 11 and the helical gear 2 12 are meshed together. One end of the helical gear 11 is fixedly connected to the end of the stacked blade assembly 9 away from the movable arm 8, and the helical gear 2 12 is fixedly connected to the shaft 4. By arranging the helical gear 11 and the helical gear 2 12 inside the protective housing 10, not only can the transmission capacity be achieved, but also the service life can be guaranteed.

[0025] A slag guide pipe 7 is installed at the lower end of the fixed arm 2 on the side away from the movable arm 8. The slag guide pipe 7 bends and extends towards the outer bottom of the fixed arm 2, so as to facilitate the natural sliding of materials.

[0026] like Figures 1 to 2 As shown, the tunneling machine provided in the second aspect of this application adopts the following technical solution: it includes any of the above-mentioned tunneling machine robotic arms, the tunneling machine robotic arms are mounted on the tunneling machine body, and the tunneling machine body can be threadedly connected to the base 1 through a connecting plate to ensure stability during operation.

[0027] The working principle of the utility model is as follows: through starting the driving motor 3, the driving motor 3 drives the shaft rod 4 to rotate, after the shaft rod 4 rotates, the two outside bending poking blocks 6 and the bevel gear two 12 synchronously rotate, after the bevel gear two 12 rotates, the bevel gear one 11 connected with it meshes synchronously rotates. After the bevel gear one 11 rotates, it will drive the coaxially connected stacked screw blade assembly 9 to rotate, through the spiral conveying effect of the stacked screw blade assembly 9, the material can be conveyed to the fixed arm 2 from the movable arm 8, at the same time, the two bending poking blocks 6 synchronously rotate, and the material conveyed to the fixed arm 2 is poked and propelled, so that the material moves to the direction of the slag guide pipe 7. Through the protection of the connecting piece, the material can be prevented from directly contacting the driving structure, so as to protect the driving structure from abrasion, in addition, the poking effect of the bending poking block 6 can accelerate the propulsion speed of the material, reduce the conveying pressure of the stacked screw blade assembly 9, and improve the overall conveying efficiency. In the description of the utility model, it is understood that the terms "upper", "lower", "left", "right" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, a particular orientation structure and operation, therefore, it cannot be understood as a limitation on the utility model. In addition, "first", "second" is only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more features. In the description of the utility model, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0028] In the description of the utility model, it should be explained that, unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0029] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details, and the utility model is not limited to the specific implementation. Obviously, according to the content of the specification, many modifications and changes can be made. The embodiments are selected and described in the specification in order to better explain the principles and practical application of the utility model, so that the skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the whole scope and equivalents.

Claims

1. A mechanical arm for a heading machine, comprising a base (1) to which a fixed arm (2) is hingedly connected on one side, characterised in that, The inner side wall of the fixed arm (2) is slidably connected with a movable arm (8) and fixedly connected with a connecting piece, the inner side wall of the movable arm (8) is rotatably connected with a stacked screw blade assembly (9), the stacked screw blade assembly (9) is connected with one side of the connecting piece, one side of the fixed arm (2) is provided with a driving piece, the driving piece penetrates the fixed arm (2) and is connected with one end of the connecting piece, and the two sides of the driving piece are further provided with a bent prying block (6).

2. The mechanical arm for a tunneling machine according to claim 1, characterized in that The driving piece comprises a driving motor (3), the driving motor (3) is fixedly connected to the outer surface of the fixed arm (2), the output end of the driving motor (3) is fixedly connected with a shaft rod (4), the shaft rod (4) is rotatably connected to the side wall of the fixed arm (2), and one end of the shaft rod (4) away from the driving motor (3) is fixedly connected with the connecting piece.

3. The mechanical arm for a tunneling machine according to claim 2, characterized in that One end of the bent prying block (6) is provided with a fixed ring (5), and the inner side wall of the fixed ring (5) is fixedly connected with the outer surface of the shaft rod (4).

4. The mechanical arm for a tunneling machine according to claim 3, characterized in that The connecting piece comprises a protective shell (10), the inner wall of the protective shell (10) is rotatably connected with a bevel gear one (11) and a bevel gear two (12), the bevel gear one (11) and the bevel gear two (12) are meshingly connected, one end of the bevel gear one (11) is fixedly connected with one end of the stacked screw blade assembly (9) away from the movable arm (8), and the bevel gear two (12) is fixedly connected with the shaft rod (4).

5. The mechanical arm for a tunneling machine according to claim 4, characterized in that The lower end of the fixed arm (2) away from the movable arm (8) side is provided with a slag guide pipe (7).

6. A heading machine characterized by The mechanical arm for the tunneling machine comprises the mechanical arm for the tunneling machine as claimed in any one of claims 1 to 5, and is arranged on a tunneling machine body.

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