A kind of excavator pick bit head and tooth handle welding equipment

Abstract

The present application relates to the technical field of anchor excavator, specifically to a kind of anchor excavator pick tooth bit and tooth shank welding equipment, including support assembly, welding assembly, adjusting assembly and auxiliary unit.The present application adopts the welding mode of setting angle inclined support seat cooperation self-rotation, so that the molten filler metal can flow in the groove of tooth shank, improve the coverage of filler metal on the contact surface of tooth bit and tooth shank, and through the contact piece, ensure that the contact surface of tooth bit and tooth shank has sufficient filler metal with set amplitude vibration action, so that the filler metal can be replenished into the gap between tooth bit and tooth shank, reduce the resource waste caused by filler metal overflow, and avoid the problem of partial lack of welding at the connection between tooth bit and tooth shank caused by filler metal overflow, and the connection strength after welding is improved.

Description

Technical Field

[0001] This invention relates to the field of tunneling and anchoring machine technology, specifically to a welding device for the cutting head and shank of a tunneling and anchoring machine. Background Technology

[0002] A roadheader is a high-efficiency tunneling machine that combines the functions of a tunneling machine and a rock bolting machine. The cutting tooth system, as the main component for breaking rock, plays a crucial role in the operation. The cutting tooth system includes a drum and a tooth shank and cutter head located at the front end of the drum. The tooth shank is installed to the front end of the drum via a plug-in connection, and the cutter head is brazed to the front end of the tooth shank.

[0003] Currently, in the welding process of the cutting tool tip (hereinafter referred to as the tip) and the shank, the brazing filler metal for welding is first applied manually to the tail end of the tip and the groove on the shank. Then, the two are assembled and heated for welding, so that the brazing filler metal melts and fully fills the contact surface between the tip and the shank. After cooling, the brazing operation is completed. In the existing welding process, it is easy for the bottom of the groove of the shank and the contact surface of the tip to be difficult to fill with brazing filler metal, which affects the strength of the subsequent weld connection. Therefore, the current method is to place a brazing piece in the groove before assembling the tip and the shank, and drive the shank to rotate to improve the coverage of the brazing filler metal on the contact surface of the tip and the shank.

[0004] However, the following problems still exist in the existing technology: First, it is difficult to ensure that every area is coated with brazing filler metal when applying it. At room temperature, the brazing filler metal is in paste or solid form, making it difficult to coat the entire area. In addition, high-temperature heating is only performed after assembly. Because the cutter head and tooth shank are in a clearance fit, the brazing filler metal will slowly enter the gap through capillary action after heating. However, after heating, the brazing filler metal is in a low-viscosity liquid state. Therefore, some of the molten brazing filler metal slides down before entering the gap, causing incomplete soldering on some of the connection surfaces of the cutter head and tooth shank. Furthermore, during current brazing operations, the tooth shank is usually placed vertically. In this state, the molten brazing filler metal will be at the bottom of the connection area, while the upper part of the connection area is prone to incomplete soldering. Thus, in the above situations, there will be voids in the connection area between the cutter head and tooth shank that are not filled with brazing filler metal. These places will become weak points in the connection between the cutter head and tooth shank, which are prone to cutter head breakage or detachment, causing premature failure of the cutting tooth. Summary of the Invention

[0005] Therefore, it is necessary to provide a welding device for the cutting head and shank of a tunneling and anchoring machine, which aims to solve the problems of the prior art.

[0006] This application provides a welding device for the cutting head and shank of a tunneling and anchoring machine, which is used in conjunction with a conveying device. The conveying device includes a frame and two conveying chains distributed front and rear on the frame. The conveying chains are provided with multiple chain plates that are equidistantly distributed along their length direction. Multiple support components are provided on the chain plates. A welding component is provided above the conveying chains.

[0007] The support assembly includes a support seat disposed on the chain plate. The support seat is disposed on the side of the chain plate away from the conveyor chain. A rotating seat is rotatably disposed on the support seat. Four support rods are fixedly disposed on the end of the rotating seat away from the conveyor chain.

[0008] The support base and the chain plate are both equipped with an adjustment component, and the frame is equipped with a drive unit for driving the rotating seat to rotate.

[0009] An auxiliary unit is provided on the frame. The auxiliary unit includes a lifting frame. The lifting frame is provided on the frame and can move up and down. Multiple fitting parts are provided at the lower end of the lifting frame, and the fitting parts have accommodating cavities.

[0010] The auxiliary unit also includes a vibration component corresponding to the bonding component. The vibration component includes a vibration rod, which applies a set amplitude vibration to the toothed handle after the bonding component moves down.

[0011] The toothed shank, whose tilt angle is set by the adjustment component, is moved into the welding assembly by the conveyor chain. With the help of the drive unit and the auxiliary unit, the brazing filler metal is fully inserted into the gap between the cutter head and the toothed shank. The brazing filler metal that overflows during the rotation and is stored in the receiving cavity is reinserted into the gap by the bonding component.

[0012] According to an advantageous embodiment, a vertically oriented rotating shaft is rotatably mounted on the chain plate, and a drive shaft passing through the support is fixedly mounted on the rotating seat. The drive shaft and the rotating shaft are connected by a universal joint, and the drive shaft is rotatably connected to the support.

[0013] The free end of the rotating shaft is fixedly fitted with a gear, and a rack located in front of the gear and meshing with the gear is fixedly installed on the frame.

[0014] According to an advantageous embodiment, the adjustment assembly includes adjustment bars, two adjustment bars that slide vertically and horizontally are disposed through the chain plate, and a sliding block corresponding to the adjustment bar is slidably disposed on the end face of the support facing the chain plate, the sliding block being hinged to the corresponding adjustment bar.

[0015] Bolts are provided on the opposite sides of the two adjustment bars, sliding up and down. The bolts are fixed through the chain plate, and the adjustment bars are locked by tightening the nuts on the bolts.

[0016] According to an advantageous embodiment, a transmitter is provided on the chain plate, and a receiver is provided on the frame, with the receiver located below the front side of the leftmost bonding member.

[0017] According to an advantageous embodiment, the middle region of the rack is a toothless section, the bonding member is located above the toothless section, and a gear two corresponding to the bonding member is rotatably provided on the frame via a drive shaft. When the rack shank is bonded to the bonding member, the gear one corresponding to the rack shank meshes with the corresponding gear two.

[0018] According to an advantageous embodiment, a plurality of L-shaped frames are fixedly arranged on the lower end face of the lifting frame, and the fitting piece is hinged to the horizontal section of the L-shaped frame.

[0019] The bonding component has an arc-shaped structure that is larger at the top and smaller at the bottom. The inner arc surface of the bonding component has an integrally formed bonding slope. The angle between the bonding slope and the inner side of the bonding component is an acute angle. The side of the bonding slope away from the bonding component is an arc-shaped surface. When the bonding slope is bonded to the toothed shank, the axes of the bonding component and the bonding slope are collinear with the toothed shank. Multiple ball bearings are movably arranged on the arc-shaped surface of the bonding slope.

[0020] According to an advantageous embodiment, the front and rear sides of the bonding member are integrally formed with retaining edges, and the two retaining edges, the bonding slope, and the bonding member together form a receiving cavity.

[0021] According to an advantageous embodiment, a spring rod is hinged together between the fitting element and the vertical section of the L-shaped frame.

[0022] According to an advantageous embodiment, a mounting frame is fixedly provided on the lower end face of the horizontal section of the L-shaped frame, and the vibrating rod is slidably disposed on the mounting frame. A wedge is provided on the left end of the vibrating rod, and a return spring is provided between the vibrating rod and the mounting frame.

[0023] In summary, the present invention has the following beneficial effects: The present invention uses an inclined support at a set angle in conjunction with a self-rotating welding method, which allows the molten brazing filler metal to flow in the groove of the tooth shank, improving the coverage of the brazing filler metal on the contact surface of the cutter head and tooth shank. The fitting component ensures that the brazing filler metal is fully retained on the contact surface of the cutter head and tooth shank, and the vibration action of the set amplitude allows the brazing filler metal to be replenished into the gap between the cutter head and tooth shank, reducing the waste of resources caused by brazing filler metal overflow and avoiding the problem of partial incomplete welding at the connection of the cutter head and tooth shank due to brazing filler metal overflow. In summary, the connection strength after welding is improved. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0025] Figure 1 A schematic diagram of a welding device for cutting cutter head and shank of a tunneling and anchoring machine according to an embodiment of the present invention is shown.

[0026] Figure 2 A top view of the transmitter, receiver, and rack provided according to an embodiment of the present invention is shown;

[0027] Figure 3 A partially exploded perspective view of the chain plate, rack and gear 1 provided according to an embodiment of the present invention is shown;

[0028] Figure 4 A partial cross-sectional perspective view of the three-dimensional structure between the rack, gear one, and gear two provided according to an embodiment of the present invention is shown.

[0029] Figure 5 A three-dimensional structural diagram of the lifting frame, the fitting component, and the vibration rod provided according to an embodiment of the present invention is shown.

[0030] Figure 6 A partially exploded three-dimensional cross-sectional view of the bonding member, the cutting head, and the toothed shank provided according to an embodiment of the present invention is shown.

[0031] The above-mentioned figures include the following reference numerals: 1. Conveyor chain; 2. Chain plate; 3. Support assembly; 30. Support seat; 31. Rotating seat; 32. Support rod; 4. Welding assembly; 5. Adjustment assembly; 50. Adjustment bar; 52. Bolt; 6. Drive unit; 60. Rotating shaft; 61. Transmission shaft; 62. Gear one; 63. Rack; 64. Gear two; 7. Auxiliary unit; 70. Lifting frame; 71. Fitting component; 72. Receiving cavity; 73. L-shaped frame; 74. Fitting slope; 75. Ball bearing; 76. Side guard; 77. Spring rod; 8. Vibration assembly; 80. Vibration rod; 81. Mounting frame; 82. Return spring; 90. Transmitter; 91. Receiver. Detailed Implementation

[0032] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] like Figure 1 and Figure 2 As shown, a welding device for cutting cutter heads and shanks of a tunneling and anchoring machine is used in conjunction with a conveying device. The conveying device includes a frame and two conveying chains 1 distributed front to back on the frame. The conveying chains 1 are provided with multiple chain plates 2 that are equidistantly distributed along their length direction. Multiple support components 3 that are equidistantly arranged on the chain plates 2 for supporting the shank and the cutting head are provided. A welding component 4 for heating and welding is provided above the conveying chains 1.

[0034] like Figure 1 , Figure 3 and Figure 5 As shown, the support assembly 3 includes a support seat 30 disposed on the chain plate 2. The support seat 30 is disposed on the side of the chain plate 2 away from the conveyor chain 1. A rotating seat 31 is rotatably disposed on the support seat 30. In order to facilitate the welding of toothed shank cutter heads with different diameters, the rotating seat 31 and the support seat 30 are detachably plugged together. Four circumferentially distributed support rods 32 with their axes perpendicular to the end face of the rotating seat 31 are fixedly disposed at the end of the rotating seat 31 away from the conveyor chain 1. The top of the support rods 32 is chamfered. The diameter of the area formed by the four support rods 32 is located between the small diameter section and the large diameter section of the toothed shank.

[0035] like Figure 1 and Figure 3 As shown, the support seat 30 and the chain plate 2 are both provided with an adjustment component 5 for adjusting the tilt angle of the support seat 30, and the frame is provided with a drive unit 6 for driving the rotating seat 31 to rotate.

[0036] like Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, an auxiliary unit 7 is provided on the frame. The auxiliary unit 7 includes a lifting frame 70. The lifting frame 70 is provided on the frame and can move up and down. Multiple bonding members 71 are provided at the lower end of the lifting frame 70. The bonding members 71 move down and bond with the corresponding tooth shank. A receiving cavity 72 for accommodating brazing filler metal is provided on the bonding member 71.

[0037] like Figure 1 and Figure 5As shown, the auxiliary unit 7 also includes a vibration component 8 corresponding to the bonding member 71. The vibration component 8 includes a vibration rod 80, which applies a set amplitude vibration to the toothed handle by moving the vibration rod 80 left and right after the bonding member 71 moves down.

[0038] During operation, during the pause in the conveyor chain 1, the cutter head and toothed shank coated with brazing filler metal are joined together manually or by a robotic arm and placed as a single unit on the support assembly 3 at the right end of the conveyor chain 1. At this time, the joined body is tilted. A brazing piece is placed in the groove on the toothed shank, and the cutter head or groove is coated with brazing filler metal. However, when the cutter head and toothed shank are joined, the brazing filler metal is insufficient to fully fill the contact surface. Subsequently, the conveyor chain 1 transports the joined cutter head and toothed shank into the welding assembly 4 for brazing. During this transfer, the drive unit 6 causes the rotating seat 31 and the support rod 32 to rotate the cutter head and toothed shank synchronously and slowly, allowing the brazing filler metal and molten brazing piece to flow fully in the groove, improving the coverage of the brazing filler metal on the contact surface of the cutter head and toothed shank. Then, when the cutter head and toothed shank move to the set position, the loading action is performed, and simultaneously, the lifting frame 70 moves the bonding component 71. The device moves downward, causing the fitting 71 to fit against the connection between the cutter head and the tooth shank. Simultaneously, the drive unit 6 causes the cutter head and tooth shank to rotate rapidly. At this time, the fluidity of the molten brazing filler metal, heated by the welding assembly 4, increases. With the fitting state of the fitting 71 in conjunction with the rotation of the cutter head and tooth shank, the molten brazing filler metal can fully enter the gap between the two. Meanwhile, the overflowing molten brazing filler metal enters the receiving cavity 72 for temporary storage and is continuously replenished into the gap between the cutter head and tooth shank during subsequent continuous rotation. This avoids the problem of brazing filler metal remaining on the contact surface of the cutter head and tooth shank being difficult to fully cover after overflowing, thereby reducing material waste and improving brazing strength. In addition, the vibration rod 80 in the vibration assembly 8 applies a set vibration amplitude to the tooth shank during the interval when the conveyor chain 1 stops moving, increasing the coverage of the brazing filler metal on the contact surface of the cutter head and tooth shank, thereby improving the final welding quality.

[0039] It should be further noted that all components that need to enter or are close to the high-temperature area of ​​the welding assembly 4 in this technical solution are made of high-temperature resistant materials.

[0040] like Figure 4 As shown, a vertically oriented rotating shaft 60 is rotatably mounted on the chain plate 2, and a drive shaft 61 that passes through the support 30 is fixedly mounted on the rotating seat 31. The drive shaft 61 and the rotating shaft 60 are connected by a universal joint, and the drive shaft 61 is rotatably connected to the support 30.

[0041] The free end of the rotating shaft 60 is fixedly fitted with a gear 62, and a rack 63 located in front of the gear 62 and meshing with the gear 62 is fixedly installed on the frame.

[0042] like Figure 1 and Figure 4 As shown, the adjustment component 5 includes an adjustment bar 50. Two adjustment bars 50 are provided through the chain plate 2, which slide up and down and are distributed left and right. The support seat 30 is provided with a sliding block corresponding to the adjustment bar 50, which slides left and right towards the end face of the chain plate 2. The sliding block is hinged to the corresponding adjustment bar 50.

[0043] Bolts 52 are slidably provided on the opposite sides of the two adjusting bars 50. The bolts 52 are fixed through the chain plate 2, and the adjusting bars 50 are locked by tightening the nuts on the bolts 52.

[0044] like Figure 1 and Figure 2 As shown, a transmitter 90 is provided on the chain plate 2, and a receiver 91 is provided on the frame, with the receiver 91 located below the front side of the leftmost bonding member 71.

[0045] like Figure 2 and Figure 4 As shown, the middle area of ​​the rack 63 is a toothless section, and the fitting part 71 is located above the toothless section. The frame is rotatably equipped with a gear 64 corresponding to the fitting part 71 via a drive shaft (the drive shaft is connected to an external motor (not shown in the figure)). When the toothed shank is fitted with the fitting part 71, the gear 62 corresponding to the toothed shank meshes with the corresponding gear 64.

[0046] During operation, the tilt angle is first selected based on the dimensions of the welding shank and the cutting head. Regarding this feature requirement, it should be noted that the dimensions of the shank and the cutting head are directly related to the amount of solder required. When the tilt angle is too large, it will cause excessive solder overflow when there is a lot of solder, affecting the solder coverage process. When the amount of solder required is small, a larger tilt angle is needed to enhance the effect of gravity and facilitate the flow of molten solder. The tilt angle is based on data obtained by experts in this field through multiple external tests and is a feature of existing external technology, which will not be elaborated further.

[0047] To set the tilt angle, manually adjust the tilt angle of the support 30 and the rotating seat 31 to the set value. Then, manually tighten the nut on the bolt 52 to lock the adjusting bar 50 and the corresponding chain plate 2. This completes the angle adjustment of the support 30. Then, the toothed cutter head is connected and placed on the support rod 32.

[0048] During welding, the conveyor chain 1 drives the cutter head and toothed shank placed on it to rotate synchronously. The chain plate 2 on the upper right side drives the gear 62 on it to gradually contact and mesh with the right side of the rack 63. Therefore, as the chain plate 2 continues to move laterally, the gear 62 drives the rotating shaft 60 to rotate synchronously. The rotating shaft 60 drives the transmission shaft 61 and the rotating seat 31 to rotate synchronously through the universal joint. Therefore, the rotating seat 31 drives the corresponding toothed shank and cutter head to rotate synchronously through the support rod 32, so that the brazing filler metal inside flows in the gap area between the cutter head and toothed shank under the action of gravity, thereby covering the entire contact surface, improving the final welding quality, and avoiding the problem of poor connection strength after welding due to the failure of the local contact surface of the cutter head and toothed shank to be covered with brazing filler metal.

[0049] Furthermore, the conveyor chain 1 drives the chain plate 2 to move continuously to the left. When the upper chain plate 2 drives the cutter head and toothed shank on it into the welding assembly 4, the welding assembly 4 heats up, causing the brazing filler metal to connect the cutter head and toothed shank, thus performing brazing. It should be noted that, based on the number of bonding parts 71, the transmitter 90 with a spacing of one less between adjacent groups of all transmitters 90 is in working condition. When the transmitter 90 on the chain plate 2 is aligned with the corresponding receiver 91, the infrared signal emitted by the transmitter 90 is received by the corresponding receiver 91 and converted into an electrical signal, which is transmitted to the control center. The control center reacts and causes the conveyor chain 1 to stop operating. At this time, the cutter head and toothed shank remain directly below the bonding part 71. During this intermittent stop, the feeding action can be performed. Meanwhile, the gear 62 located below the bonding part 71 moves from right to left, first disengaging from the rack 63 and gradually entering the toothless section of the rack 63. The gear 62 gradually meshes with the corresponding gear 64, and the subsequent auxiliary brazing operation is carried out.

[0050] like Figure 2 and Figure 5 As shown, the lower end face of the lifting frame 70 is fixedly provided with a plurality of L-shaped frames 73 distributed equidistantly on the left and right. The fitting piece 71 is hinged on the horizontal section of the L-shaped frame 73. The lifting frame 70 is controlled to move up and down by an external electric push rod (not shown in the figure).

[0051] like Figure 5 and Figure 6 As shown, the bonding component 71 has an arc-shaped structure that is larger at the top and smaller at the bottom. A bonding slope 74 is integrally formed on the lower side of the inner arc surface of the bonding component 71. The angle between the bonding slope 74 and the inner side of the bonding component 71 is an acute angle, and the side of the bonding slope 74 away from the bonding component 71 is an arc-shaped surface. When the bonding slope 74 is bonded to the toothed shank, the axes of the bonding component 71 and the bonding slope 74 are collinear with the toothed shank. Multiple ball bearings 75 are movably arranged on the arc-shaped surface of the bonding slope 74.

[0052] The front and rear sides of the bonding component 71 are integrally formed with baffles 76, and the two baffles 76, the bonding slope 74 and the bonding component 71 together form the receiving cavity 72.

[0053] like Figure 5 As shown, a spring rod 77 is hinged between the fitting component 71 and the vertical section of the L-shaped frame 73.

[0054] When the toothed shank and cutter head are positioned below the mating component 71, the external electric push rod operates, causing the lifting frame 70 to move the L-shaped frame 73 and the mating component 71 downwards. As the mating component 71 gradually moves downwards, the inner arc surface of the mating slope 74 first contacts the upper arc surface of the toothed shank, causing the spring rod 77 to gradually compress. The elastic force generated by the deformation of the spring rod 77 causes the arc surface of the mating slope 74 to press tightly against the toothed shank. Therefore, the upper end of the mating slope 74 is aligned with the junction of the cutter head and the toothed shank. The external motor operates, causing gear 64 to rotate synchronously. Through the meshing between gear 64 and gear 62, gear 62 rotates synchronously. Therefore, the support rod 32 drives the toothed shank and the cutter head. The components rotate synchronously, and after continuous heating by the welding assembly 4, the internal brazing filler metal and brazing filler metal change due to heat, increasing their fluidity. Under the rotation of the toothed shank, some of the brazing filler metal fully enters the gap between the toothed shank and the cutting head, while some overflows and flows into the receiving cavity 72. It should also be noted that brazing filler metal is replenished in advance according to the size of the receiving cavity 72 to ensure that the brazing filler metal in the receiving cavity 72 can re-enter the gap between the cutting head and the toothed shank during the welding process. In summary, this ensures that the contact surfaces of the cutting head and the toothed shank are fully coated with brazing filler metal, thereby ensuring the connection strength between the two and avoiding the problem of brazing filler metal overflow causing insufficient internal brazing filler metal, which affects the subsequent welding strength.

[0055] In addition, when the mating slope 74 is mated with the tooth shank, the friction between the mating slope 74 and the tooth shank is reduced by setting the ball bearing 75, so as to avoid the problem of the tooth shank and the cutter head being misaligned due to friction during rotation.

[0056] like Figure 5As shown, a mounting bracket 81 is fixedly installed on the lower end face of the horizontal section of the L-shaped frame 73. The vibration rod 80 is slidably installed on the mounting bracket 81. A wedge is provided at the left end of the vibration rod 80. A return spring 82 is provided between the vibration rod 80 and the mounting bracket 81. When the mating part 71 moves down for auxiliary operation, the telescopic section of the external high-speed electric guide rod extends according to the set amplitude and contacts the wedge. By pushing the inclined surface of the wedge, the wedge moves, thus causing the vibrating rod 80 to move to the left. Subsequently, it returns to its original position under the elastic force generated by the deformation of the return spring 82. The above process is repeated to provide vibration assistance at the set amplitude. The same principle applies to the tilt angle setting and the rotation setting. This helps the brazing filler metal to fully enter the contact surface between the cutter head and the tooth shank, thereby improving the final welding strength. In addition, it should be noted that the above-mentioned wedge and external high-speed electric guide rod operation processes are all external existing technologies. Their purpose is to make the vibrating rod 80 vibrate at the set amplitude. Therefore, external existing technologies with the same operation effect can be replaced. Furthermore, the vibration amplitude generated by the vibrating rod 80 on the tooth shank is obtained by a person skilled in the art through multiple tests before operation. Under the set vibration amplitude, it will not affect the original position of the cutter head and the tooth shank, and will only assist the flow process of the brazing filler metal.

[0057] It should be further explained that in the existing technology, the brazing method in which the shank and the cutter head are vertically supported and the brazing filler metal is applied manually is problematic. Due to the physical properties of the filler metal, which is paste-like or solid at room temperature and becomes a low-viscosity liquid after melting, and because the filler metal is located at the connection between the cutter head and the shank, the existing brazing method cannot keep the filler metal on both the contact surfaces of the cutter head and the shank, thus affecting the final weld strength and easily causing waste of excess filler metal. In this technical solution, the support component 3, adjustment component 5, drive component, and auxiliary unit 7 are added. Through the inclined support placement method, the filler metal collection and replenishment method of the fitting component 71, and the vibration operation method with a set amplitude, it is ensured that the contact surfaces of the cutter head and the shank are fully covered with filler metal, thereby improving the final weld quality. In addition, the added components are all external conventional mechanical parts, which can be used for a long time after a single installation. In summary, this technical solution is a specific improvement made entirely based on and to solve the defects of the existing technology.

[0058] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0059] Furthermore, the terms "first," "second," "number one," and "number two" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "number one," or "number two" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0060] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," "installed," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0061] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A welding device for cutting cutter heads and shanks of a roadheader, used in conjunction with a conveying device, the conveying device comprising a frame and two conveyor chains distributed front and rear on the frame, characterized in that, include: Both conveyor chains are provided with multiple chain plates that are equidistantly distributed along their length, and multiple support components are provided on the chain plates. Welding components are provided above the conveyor chains. The support assembly includes a support seat disposed on the chain plate. The support seat is disposed on the side of the chain plate away from the conveyor chain. A rotating seat is rotatably disposed on the support seat. Four support rods are fixedly disposed on the end of the rotating seat away from the conveyor chain. The support base and the chain plate are both equipped with an adjustment component, and the frame is equipped with a drive unit for driving the rotating seat to rotate. An auxiliary unit is provided on the frame. The auxiliary unit includes a lifting frame. The lifting frame is provided on the frame and can move up and down. Multiple fitting parts are provided at the lower end of the lifting frame. The fitting parts have accommodating cavities. The auxiliary unit also includes a vibration component corresponding to the bonding component. The vibration component includes a vibration rod, which applies a set amplitude vibration to the toothed handle after the bonding component moves down. The toothed shank, whose tilt angle is set by the adjustment component, is moved into the welding assembly by the conveyor chain. With the help of the drive unit and the auxiliary unit, the brazing filler metal is fully inserted into the gap between the cutter head and the toothed shank. The brazing filler metal that overflows during the rotation and is stored in the receiving cavity is reinserted into the gap by the bonding component.

2. The equipment for welding the cutting head and shank of a tunneling and anchoring machine according to claim 1, characterized in that: The chain plate is rotatably provided with a vertically oriented rotating shaft, and the rotating seat is fixedly provided with a transmission shaft that passes through the support seat. The transmission shaft and the rotating shaft are connected by a universal joint, and the transmission shaft is rotatably connected to the support seat. The free end of the rotating shaft is fixedly fitted with a gear, and a rack located in front of the gear and meshing with the gear is fixedly installed on the frame.

3. The equipment for welding the cutting head and shank of a tunneling and anchoring machine according to claim 1, characterized in that: The adjustment component includes adjustment bars. Two adjustment bars that slide up and down and are distributed left and right are arranged through the chain plate. The support seat has sliding blocks corresponding to the adjustment bars that slide left and right on the end face of the chain plate. The sliding blocks are hinged to the corresponding adjustment bars. Bolts are provided on the opposite sides of the two adjustment bars, sliding up and down. The bolts are fixed through the chain plate, and the adjustment bars are locked by tightening the nuts on the bolts.

4. The equipment for welding the cutting head and shank of a tunneling and anchoring machine according to claim 1, characterized in that: A transmitter is provided on the chain plate, and a receiver is provided on the frame, with the receiver located below the front side of the leftmost bonding component.

5. The equipment for welding the cutting head and shank of a tunneling and anchoring machine according to claim 2, characterized in that: The middle area of ​​the rack is a toothless section, and the bonding component is located above the toothless section. A gear two corresponding to the bonding component is rotatably mounted on the frame via a drive shaft. When the rack shank is in contact with the bonding component, the gear one corresponding to the rack shank meshes with the corresponding gear two.

6. The equipment for welding the cutting head and shank of a tunneling and anchoring machine according to claim 1, characterized in that: The lower end face of the lifting frame is fixedly provided with multiple L-shaped frames that are equidistantly distributed on the left and right, and the fitting piece is hinged on the horizontal section of the L-shaped frame. The bonding component has an arc-shaped structure that is larger at the top and smaller at the bottom. The inner arc surface of the bonding component has an integrally formed bonding slope. The angle between the bonding slope and the inner side of the bonding component is an acute angle. The side of the bonding slope away from the bonding component is an arc-shaped surface. When the bonding slope is bonded to the toothed shank, the axes of the bonding component and the bonding slope are collinear with the toothed shank. Multiple ball bearings are movably arranged on the arc-shaped surface of the bonding slope.

7. The equipment for welding the cutting head and shank of a tunneling and anchoring machine according to claim 1, characterized in that: The front and rear sides of the bonding component are integrally formed with retaining edges, and the two retaining edges, the bonding slope, and the bonding component together form a receiving cavity.

8. The equipment for welding the cutting head and shank of a tunneling and anchoring machine according to claim 6, characterized in that: A spring rod is hinged between the fitting component and the vertical section of the L-shaped frame.

9. The equipment for welding the cutting head and shank of a tunneling and anchoring machine according to claim 6, characterized in that: A mounting frame is fixedly installed on the lower end face of the horizontal section of the L-shaped frame. The vibrating rod slides through the mounting frame and is installed horizontally. A wedge is provided at the left end of the vibrating rod, and a return spring is provided between the vibrating rod and the mounting frame.

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