Self-tapping expansion bolt drilling machine and construction equipment

Abstract

The utility model relates to self -tapping expansion bolt mounting equipment technical field provides a kind of self-tapping expansion bolt drilling machine and construction equipment, the drilling machine includes: drilling machine body, is equipped with output part, and is equipped with with output part in the first direction corresponding feeding position;Progressive feeding mechanism is used to drive material belt intermittent movement along preset trajectory, multiple self-tapping expansion bolts are stored on material belt, multiple self-tapping expansion bolts are arranged along the length direction interval of material belt;Preset trajectory passes through feeding position, so that multiple self-tapping expansion bolts can enter feeding position one by one;Self-tapping expansion bolt on output part and feeding position can be coupled in the first direction relative close. Thus, progressive automatic feeding of self-tapping expansion bolt can be realized, and staff only needs to replace new material belt when self-tapping expansion bolt on material belt is exhausted, which reduces the tedious manual material taking and feeding work, reduces the number of operation interruption, shortens the operation gap, realizes continuous operation, and further improves the operation efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of self-tapping expansion bolt installation equipment, and in particular to a self-tapping expansion bolt drilling machine and construction equipment. Background Technology

[0002] Self-tapping expansion bolts are a type of bolt that integrates drilling and expansion fastening without the need for separate drilling. Compared to ordinary expansion bolts, they eliminate the need for drilling tools and drilling and installation processes, thereby improving overall installation efficiency.

[0003] However, in practical applications, it has been found that although self-tapping expansion bolts can improve installation efficiency to a certain extent, in batch installation scenarios, such as construction of building tunnels, coal mine roadway construction, and road and mountain mesh reinforcement, where multiple self-tapping expansion bolts need to be installed continuously, it is still necessary to install the self-tapping expansion bolts one by one, making it difficult to form continuous operations, which seriously limits the promotion and use of self-tapping expansion bolts.

[0004] In view of the above problems, how to achieve continuous operation of self-tapping expansion bolts and further improve work efficiency has become an important technical problem that urgently needs to be solved. Utility Model Content

[0005] This utility model provides a self-tapping expansion bolt drilling machine and construction equipment to solve the defect of the existing technology that self-tapping expansion bolts are difficult to operate continuously, and can realize the continuous operation of self-tapping expansion bolts, thereby further improving the operation efficiency.

[0006] This utility model provides a self-tapping expansion bolt drilling machine, comprising: The drilling rig body is provided with an output section and a feeding position corresponding to the position of the output section in a first direction; A progressive feeding mechanism is used to drive a material belt to move intermittently along a preset trajectory. The material belt stores multiple self-tapping expansion bolts, which are arranged at intervals along the length of the material belt. The preset trajectory passes through the feeding position, allowing the multiple self-tapping expansion bolts to enter the feeding position one by one. The output section and the self-tapping expansion bolt on the loading position can be coupled relatively close to each other in the first direction.

[0007] According to the present invention, a self-tapping expansion bolt drilling machine is provided, wherein a guide rail is fixedly connected to the drilling machine body, and the guide rail is arranged along the preset trajectory. The guide rail has a through groove at least in the portion located at the loading position, for the tail end of the self-tapping expansion bolt to pass through.

[0008] According to the present invention, a self-tapping expansion bolt drilling machine is provided, wherein the guide rail includes: The main body has two sections, which are located on both sides of the drilling rig body. In the first direction, the two main body sections gradually approach the loading position and extend at an inclination. The connecting section is located at the feeding position and is connected to the two main body sections on both sides respectively.

[0009] According to the present invention, a self-tapping expansion bolt drilling machine is provided, wherein the progressive feeding mechanism includes: A drive gear is rotatably connected to the guide rail, and the side of the material strip facing the drive gear has a toothed strip extending along its own length direction, which meshes with the drive gear; A drive assembly is connected to the drive gear and is used to drive the drive gear to rotate intermittently.

[0010] According to the present invention, a self-tapping expansion bolt drilling machine is provided, the drive assembly comprising: The pressing component slides in cooperation with the drilling rig body in a first direction, and the feeding position is located between the drilling rig body and the pressing component; An elastic reset element is used to provide a preload force to the pressing element to prevent it from sliding away from the drill body; A transmission component is provided, wherein the pressing component and the drive gear are connected through the transmission component, and the transmission component is used to convert the movement of the pressing component away from the drilling rig body into the rotation of the drive gear.

[0011] According to the present invention, a self-tapping expansion bolt drilling machine is provided, wherein the transmission component includes: A transmission rack is connected to the pressing member and is provided with helical teeth that are inclined in the positive direction, wherein the positive direction is the direction in which the pressing member moves away from the drilling rig body; The transmission gear is coaxially and fixedly connected to the drive gear, and meshes with the transmission rack through helical teeth. The helical teeth of the transmission gear at the meshing point are inclined in the negative direction, which is the direction in which the pressing member moves closer to the drilling rig body. The transmission rack can elastically displace or return to its original position relative to the transmission gear.

[0012] According to the present invention, a self-tapping expansion bolt drilling machine is provided, wherein the transmission rack is hinged to the pressing member, so that the transmission rack can swing close to or away from the transmission gear; An elastic element is provided between the transmission rack and the pressing member, and the elastic element is used to provide a preload force for the transmission rack to swing close to the transmission gear.

[0013] According to the present invention, a self-tapping expansion bolt drilling machine is provided, wherein the pressing member is provided with a guide through hole extending along the first direction and adapted to the guide rail, and the guide rail is slidably disposed in the guide through hole; and / or, The pressing component is provided with: The first clearance hole is used for the material strip to pass through; The second clearance hole is set along the running trajectory of the self-tapping expansion bolt to avoid the position of the self-tapping expansion bolt.

[0014] According to the present invention, a self-tapping expansion bolt drilling machine is provided, wherein the toothed belt is provided with two teethed belts, and the two teethed belts are arranged symmetrically about the center line of the width of the material belt. The drive gear is provided in two parts, which are coaxially fixedly connected and respectively mesh with the two toothed belts.

[0015] According to the present invention, a self-tapping expansion bolt drilling machine is provided, wherein the pressing component includes: two side plates arranged opposite to each other, and end plates on both sides respectively connected to the two side plates; The docking mechanism is located within the space enclosed by the side plate and the end plate, and on the preset trajectory, one of the side plates is located on the upstream side, the other end plate is located on the downstream side, and the side of the end plate facing away from the docking mechanism is formed as a pressing surface; The guide hole and the first clearance hole are disposed on the two side plates; the second clearance hole is disposed at least on the upstream side plate and extends from the side plate to the end plate.

[0016] The self-tapping expansion bolt drilling machine provided by this utility model also includes a linear drive component; The output end of the linear drive is fixedly connected to the drill body and is used to drive the drill body to move along the first direction.

[0017] According to the present invention, a self-tapping expansion bolt drilling machine is provided, wherein the linear drive component includes: a first drive component and a second drive component; In the first direction, the second drive unit is connected to the output end of the first drive unit, and the drilling rig body is connected to the output end of the second drive unit.

[0018] According to the present invention, a self-tapping expansion bolt drilling machine also includes a base, and the drilling machine body is fixedly connected to the base through the linear drive component.

[0019] According to the present invention, a self-tapping expansion bolt drilling machine is provided, wherein the output part includes an output shaft and a docking mechanism; one end of the docking mechanism is coupled to the output shaft, and the other end is used to dock the self-tapping expansion bolt; The docking mechanism includes: The outer sleeve has an opening at one end along the axial direction and a fitting hole at the other end for connecting the nut at the tail end of the self-tapping expansion bolt; The inner rod is coaxially inserted with the outer tube and can rotate synchronously with the outer tube in a coupled state and relative to it in a decoupled state; the inner rod has a first connecting part at one end facing the fitting hole and a second connecting part at the other end, the second connecting part being connected to the output part; the inner rod slides with the outer tube in the axial direction, so that the first connecting part can be connected to the bolt body of the self-tapping expansion bolt in the decoupled state and separated in the coupled state; A coupling structure suitable for coupling the inner rod and the outer tube in the coupled state.

[0020] This utility model also provides a construction device, including the self-tapping expansion bolt drilling machine described in any one of the above.

[0021] The self-tapping expansion bolt drilling machine and construction equipment provided by this utility model can drive the material belt to move intermittently along a preset trajectory through a progressive feeding mechanism, so that multiple self-tapping expansion bolts arranged at intervals on the material belt enter the feeding position one by one. After the self-tapping expansion bolt enters the feeding position, the output part and the feeding position are relatively close to each other in the axial direction for coupling. Then the drilling machine body drives the self-tapping expansion bolt to perform drilling and installation work. After the previous self-tapping expansion bolt is installed, the progressive feeding mechanism drives the material belt to move so that the next self-tapping expansion bolt enters the feeding position for drilling and installation. This process is repeated continuously, with drilling and progressive feeding cycles, to achieve continuous operation.

[0022] Compared to related technologies, by setting up a progressive feeding mechanism, the material belt that works with it can be driven to move intermittently along a preset trajectory to achieve progressive automatic feeding of self-tapping expansion bolts. The staff only needs to replace the material belt when the self-tapping expansion bolts on the material belt are exhausted, which effectively reduces the tedious manual material handling and feeding work, while reducing the number of work interruptions, shortening the work interval, realizing continuous operation, and further improving work efficiency. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in this utility model 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a structural schematic diagram of the self-tapping expansion bolt drilling machine provided in this embodiment of the utility model.

[0025] Figure 2 This is a structural schematic diagram of the self-tapping expansion bolt provided in this embodiment of the utility model.

[0026] Figure 3 This is one of the schematic diagrams showing the cooperation between the self-tapping expansion bolt and the strip provided in this embodiment of the utility model.

[0027] Figure 4 This is the second schematic diagram of the self-tapping expansion bolt and the material strip provided in this embodiment of the utility model.

[0028] Figure 5 This is a schematic diagram of the structure of the drilling rig body provided in this embodiment of the utility model.

[0029] Figure 6 This is one of the structural schematic diagrams of the guide rail provided in this embodiment of the utility model.

[0030] Figure 7 This is provided by the embodiment of the present utility model. Figure 6 A magnified view of part A in the middle.

[0031] Figure 8 This is the second schematic diagram of the guide rail provided in this embodiment of the utility model.

[0032] Figure 9 This is provided by the embodiment of the present utility model. Figure 8 A magnified view of part B in the middle section.

[0033] Figure 10 This is a schematic diagram of the toothed belt provided in an embodiment of the present invention.

[0034] Figure 11 This is a schematic diagram of the pressing component provided in an embodiment of the present invention.

[0035] Figure 12 This is a schematic diagram of the docking mechanism and the self-tapping expansion bolt provided in this embodiment of the utility model.

[0036] Figure 13 This is a cross-sectional view of the inner rod of the docking mechanism and the bolt body of the self-tapping expansion bolt in the decoupled state provided in this embodiment of the utility model.

[0037] Figure 14 This is a cross-sectional view of the inner rod of the docking mechanism and the bolt body of the self-tapping expansion bolt in the coupled state provided in this embodiment of the utility model.

[0038] Figure 15 This is an exploded view of the docking mechanism provided in an embodiment of this utility model.

[0039] Figure label: 1-1. Drilling rig body; 1-2. Progressive feeding mechanism; 1-21. Drive gear; 1-22. Pressing component; 1-221. Guide through hole; 1-222. First clearance hole; 1-223. Second clearance hole; 1-224. End plate; 1-225. Side plate; 1-23. Elastic reset component; 1-24. Transmission component; 1-241. Transmission rack; 1-242. Transmission gear; 1-3. Guide rail; 1-31. Through groove; 1-32. Main body section; 1-33. Connecting section; 1-34. Connecting section; 1-35. Limiting ring; 1-4. Linear drive component; 1-41. First drive component; 1-42. Second drive component; 1-5. 1. Base; 1-6. Docking mechanism; 1-61. Outer sleeve; 1-611. Fitting hole; 1-612. Second shoulder; 1-613. Second stop; 1-62. Inner rod; 1-621. First connecting part; 1-622. Second connecting part; 1-623. First shoulder; 1-624. First stop; 1-63. Coupling structure; 1-631. First keyway; 1-632. Second keyway; 1-64. Elastomer; 2. Strip; 21. Mounting hole; 22. Toothed strip; 3. Self-tapping expansion bolt; 31. Bolt body; 311. Spiral groove; 32. Nut; 33. Washer; 34. Expansion tube; 341. Notch; 35. Drill bit. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0041] To better understand the self-tapping expansion bolt drilling machine and construction equipment provided in this utility model embodiment, its application background is first introduced. A self-tapping expansion bolt is a bolt that integrates drilling and expansion fastening without the need for separate drilling with an electric drill. Compared with ordinary expansion bolts, it eliminates the need for drill tools and drilling and installation processes, thereby improving the overall installation efficiency.

[0042] However, in practical applications, it has been found that although self-tapping expansion bolts can improve installation efficiency to a certain extent, in batch installation scenarios, such as construction of building tunnels, coal mine roadway construction, and road and mountain mesh reinforcement, where multiple self-tapping expansion bolts need to be installed continuously, it is still necessary to install the self-tapping expansion bolts one by one, making it difficult to form continuous operations, which seriously limits the promotion and use of self-tapping expansion bolts.

[0043] In view of the above problems, this utility model provides a self-tapping expansion bolt drilling machine and construction equipment, which can realize continuous operation of self-tapping expansion bolts, thereby further improving work efficiency.

[0044] The following is combined Figures 1 to 15 This invention describes a self-tapping expansion bolt drilling machine and construction equipment.

[0045] Referring to the figure, a self-tapping expansion bolt drilling machine includes a drilling machine body 1-1 and a progressive feeding mechanism 1-2; wherein, the drilling machine body 1-1 is provided with an output section and a feeding position corresponding to the position of the output section in a first direction; the progressive feeding mechanism 1-2 is used to drive the material belt 2 to move intermittently along a preset trajectory, the material belt 2 stores a plurality of self-tapping expansion bolts 3, the plurality of self-tapping expansion bolts 3 are arranged at intervals along the length direction of the material belt 2, the preset trajectory passes through the feeding position, so that the plurality of self-tapping expansion bolts 3 can enter the feeding position one by one; the output section and the self-tapping expansion bolts 3 on the feeding position can be relatively close to each other in the first direction for coupling.

[0046] In a practical application scenario, the progressive feeding mechanism 1-2 drives the conveyor belt 2 to move intermittently along a preset trajectory, thereby allowing multiple self-tapping expansion bolts 3 arranged at intervals on the conveyor belt 2 to enter the feeding position one by one. After the self-tapping expansion bolt 3 enters the feeding position, the output part and the feeding position are relatively close to each other in the first direction for coupling. Then, the drilling machine body 1-1 drives the self-tapping expansion bolt 3 to perform drilling and installation work. After the previous self-tapping expansion bolt 3 is installed, the progressive feeding mechanism 1-2 drives the conveyor belt 2 to move so that the next self-tapping expansion bolt 3 enters the feeding position for drilling and installation. This process is repeated continuously, with drilling and progressive feeding cycles, to achieve continuous operation.

[0047] Compared to related technologies, by setting up a progressive feeding mechanism 1-2, the material belt 2 that works with it can be driven to move intermittently along a preset trajectory, realizing progressive automatic feeding of self-tapping expansion bolts 3. The staff only needs to replace the material belt 2 with a new one when the self-tapping expansion bolts 3 on the material belt 2 are exhausted, which effectively reduces the tedious manual material handling and feeding work, while reducing the number of work interruptions, shortening the work interval, realizing continuous operation, and further improving work efficiency.

[0048] It should be noted that the strip 2 with the self-tapping expansion bolts 3 can be processed in the factory and then transported to the construction site as a construction consumable to be used in conjunction with the self-tapping expansion bolt drilling machine, rather than requiring the construction personnel to assemble it themselves on the construction site.

[0049] The structure of the self-tapping expansion bolt 3 and its matching method with the material strip 2 will be introduced first below, so as to have a more intuitive and in-depth understanding of the specific structure and working process of the self-tapping expansion bolt drilling machine.

[0050] Reference Figure 2 The self-tapping expansion bolt 3 includes a bolt body 31, a nut 32, a washer 33, an expansion tube 34, and a drill bit 35. The bolt body 31 passes through the expansion tube 34, and the head end of the bolt body 31 gradually thickens in the direction away from the expansion tube 34. The drill bit 35 is connected to the end of the head end. The expansion tube 34 has a notch 341 extending toward the head end of the bolt body 31. When the expansion tube 34 is compressed, it expands along the notch 341 under the action of the head end. The hexagonal nut 32 is connected to the tail end of the bolt body 31, and the washer 33 is disposed between the nut 32 and the expansion tube 34. With this setup, during drilling, the tail end of the bolt body 31 is coupled to the output part of the drill body 1-1, and the drill bit 35 at the head of the bolt body 31 abuts against the wall. After the drill is started, the drill bit 35 drills a hole, and the expansion tube 34 enters the hole. Then, the nut 32 is tightened, and the nut 32 squeezes the expansion tube 34 through the washer 33, causing the expansion tube 34 to expand and complete the installation of the self-tapping expansion bolt 3.

[0051] Furthermore, the bolt body 31 is provided with a spiral groove 311, which extends from the part of the bolt body 31 located inside the expansion tube 34 to the head end, and is used to smoothly discharge rock fragments during drilling.

[0052] Furthermore, referring to Figure 3 and Figure 4 The strip 2 can be made of flexible materials, including plastic, and has multiple mounting holes 21 spaced apart along its length. The bolt body 31 passes through the mounting holes 21, and the strip 2 is clamped between the nut 32 and the washer 33, thereby realizing the connection and engagement between the self-tapping expansion bolt 3 and the strip 2.

[0053] It should be noted that a breakable line can be formed around the mounting hole 21 on the strip 2 by segmented cutting, so as to facilitate the separation of the self-tapping expansion bolt 3 from the strip 2 during or after installation.

[0054] The following section will describe the specific structure of the self-tapping expansion bolt drilling rig, taking into account the above content and the accompanying drawings.

[0055] Understandably, referring to Figure 5 The drilling rig body 1-1 serves as the driving part of the self-tapping expansion bolt drilling rig, mainly used to drive the self-tapping expansion bolt 3 to rotate and achieve drilling. Its specific structure and power form can be selected and configured according to different actual working conditions. No specific restrictions are imposed in this embodiment of the utility model.

[0056] For example, the drill body 1-1 can be configured to be electrically driven, such as an electric motor or a combination of an electric motor and a reducer. In some specific fields, such as coal mines where explosion-proof requirements are high, the drill body 1-1 can also be configured to be hydraulically driven, such as a hydraulic motor or a combination of a hydraulic motor and a reducer.

[0057] Of course, the above description is only an example, and other structures or power forms of the drilling rig body 1-1 will not be listed one by one in this embodiment of the utility model.

[0058] In one example of this utility model, refer to Figures 6 to 9 A guide rail 1-3 is fixedly connected to the drill body 1-1. The guide rail 1-3 is arranged along a preset trajectory, and at least the portion of the guide rail 1-3 at the loading position is provided with a through groove 1-31 for the tail end of the self-tapping expansion bolt 3 to pass through and connect with the output part of the drill body 1-1. This arrangement allows the guide rail 1-3 to provide support and guidance for the movement of the material belt 2, ensuring stable movement of the material belt 2 along the preset trajectory, while the through groove 1-31 allows the tail end of the self-tapping expansion bolt 3 to pass through for connection with the output part of the drill body 1-1.

[0059] Furthermore, the through groove 1-31 extends along the length of the guide rail 1-3 and covers the entire guide rail 1-3. With this configuration, when the material strip 2 moves along the guide rail 1-3 under the drive of the progressive feeding mechanism 1-2, the through groove 1-31 can provide clearance for the tail end of the self-tapping expansion bolt 3, ensuring that the material strip 2 can be stably supported on the guide rail 1-3.

[0060] In detail, the guide rail 1-3 includes two main sections 1-32 and one connecting section 1-33. The two main sections 1-32 are located on both sides of the drilling rig body 1-1, and in the first direction, the two main sections 1-32 gradually extend towards the loading position at an inclination. The connecting section 1-33 is located at the loading position and its two ends are connected to the two main sections 1-32, making the guide rail 1-3 have an overall "V" shape. In this way, a preset trajectory is formed that spans both sides of the drilling rig body 1-1 and passes through the loading position.

[0061] To facilitate the connection and fixation of the guide rail 1-3 and the drilling rig body 1-1, in one example of this utility model, the guide rail 1-3 further includes a connecting section 1-34. One end of the connecting section 1-34 is connected to the end of the main body section 1-32 away from the connecting section 1-33, and the other end extends toward the side of the drilling rig body 1-1 and is fixedly connected to the side of the drilling rig body 1-1. The specific connection method between the connecting section 1-34 and the drilling rig body 1-1 includes, but is not limited to, welding or connection by bolts or other connecting components.

[0062] It is understood that the various parts of the guide rails 1-3 can be integrally formed to ensure the integrity of the structure, or they can be welded together, or they can be connected by bolts or rivets. No specific restrictions are made in this embodiment of the utility model.

[0063] It should be noted here that, since the guide rail 1-3 is fixedly connected to the drill body 1-1, and the material strip 2 is supported on the guide rail 1-3, in order to make the output part and the tail end of the self-tapping expansion bolt 3 relatively close to each other in the first direction for coupling, there are several feasible methods: In a feasible example, the width of the through groove 1-31 can be slightly larger than the size of the washer 33 at the tail end of the self-tapping expansion bolt 3, so that when the self-tapping expansion bolt 3 abuts against the wall and is subjected to reverse pressure, the self-tapping expansion bolt 3 can pass through the through groove 1-31 and move its tail end a certain distance closer to the output part in the first direction, thereby achieving docking and coupling between the tail end and the output part.

[0064] In another feasible example, the part of the guide rail 1-3 located at the loading position can be configured to have a certain elastic modulus, so that the part can undergo elastic deformation in the first direction, moving closer to or away from the output part. When the self-tapping expansion bolt 3 abuts against the wall and is subjected to reverse pressure, under the pressure of the washer 33 at the tail end of the self-tapping expansion bolt 3, the part of the guide rail 1-3 located at the loading position is forced to move closer to the output part and undergo elastic deformation, thereby realizing the docking and coupling between the tail end and the output part.

[0065] Of course, the above are just examples. Other methods that can connect the output part with the tail end of the self-tapping expansion bolt 3 are also applicable. They will not be listed one by one in this embodiment of the utility model.

[0066] In this embodiment, the width of the through groove 1-31 is slightly larger than the size of the washer 33 at the tail end of the self-tapping expansion bolt 3, so that when the self-tapping expansion bolt 3 abuts against the wall and is subjected to reverse pressure, the self-tapping expansion bolt 3 can pass through the through groove 1-31 and move its tail end a certain distance closer to the output part in the first direction, thereby realizing the docking and coupling between the tail end and the output part.

[0067] Furthermore, when the material strip 2 is provided with a breakable wire that surrounds the mounting hole 21, the diameter of the breakable wire can be larger than the diameter of the washer 33. This allows the self-tapping expansion bolt 3 to pass through the through groove 1-31 and move its tail end a certain distance closer to the output part in the first direction when it is pressed against the wall and subjected to reverse pressure. This achieves docking and coupling between the tail end and the output part, and simultaneously achieves separation from the material strip 2.

[0068] It should be noted that the figure shown is for illustrative purposes only and does not represent the actual size of the product. Since the material strip 2 is made of soft plastic with a certain elastic modulus, it can quickly recover its deformation after being deformed by pressure. Moreover, since the deformation is small, it is only necessary to meet the docking requirements of the output part and the tail of the self-tapping expansion bolt 3. Actual use has proven that it will not affect the normal operation of the material strip 2.

[0069] To achieve intermittent driving of the feed belt 2 by the progressive feeding mechanism 1-2, in one example of this utility model, the progressive feeding mechanism 1-2 includes a drive gear 1-21 and a drive assembly; wherein, the drive gear 1-21 is rotatably connected to the guide rail 1-3; a toothed belt 22 extending along its own length is formed on the side of the feed belt 2 facing the drive gear 1-21, and the toothed belt 22 meshes with the drive gear 1-21; the drive assembly is drively connected to the drive gear 1-21, and the drive gear 1-21 can rotate intermittently under the drive of the drive assembly. With this configuration, the drive gear 1-21 rotates intermittently under the drive of the drive assembly, thereby driving the feed belt 2 to move intermittently along a preset trajectory, realizing progressive feeding.

[0070] To elaborate further, refer to Figure 9 and Figure 10 Two toothed belts 22 are provided, and the two toothed belts 22 are arranged symmetrically about the width centerline of the material belt 2. Two drive gears 1-21 are provided and mesh with the two toothed belts 22 respectively. With this arrangement, when the two drive gears 1-21 mesh synchronously, they will apply a pair of equal and symmetrical driving forces to the material belt 2, which will counteract the lateral eccentric force that may be generated by unilateral driving and ensure the stability and smoothness of the movement of the material belt 2.

[0071] Furthermore, a U-shaped limiting ring 1-35 is fixedly connected to the guide rail 1-3 at the position corresponding to the drive gear 1-21, and the material belt 2 passes through the space enclosed by the limiting ring 1-35 and the guide rail 1-3. This arrangement allows the limiting ring 1-35 to constrain the material belt 2, ensuring stable meshing between the toothed belt 22 on the material belt 2 and the drive gear 1-21, thereby guaranteeing the stability and smoothness of the material belt 2's movement.

[0072] It is understandable that the drive component can be a stepper motor, or a combination of a stepper motor and a transmission structure such as a gear set or worm gear. By utilizing the pulse controllability, precise positioning capability and intermittent motion characteristics of the stepper motor, the rotation angle and start-stop timing of the drive gears 1-21 can be precisely controlled, thereby driving the material belt 2 to complete the quantitative and fixed-distance progressive feeding.

[0073] However, the aforementioned types of drive components have high requirements for control logic and require precise matching between signals.

[0074] To simplify the control logic, refer to Figures 6 to 10To better match the construction process of the self-tapping expansion bolts 3, in one example of this utility model, the drive assembly includes a pressing member 1-22, an elastic reset member 1-23, and a transmission member 1-24; wherein, the pressing member 1-22 is slidably engaged with the guide rail 1-3, and in the first direction, the loading position is located between the drill body 1-1 and the pressing member 1-22, and the pressing member 1-22 can move closer to or away from the drill body 1-1; the elastic reset member 1-23 is used to provide a pre-tightening force for the pressing member 1-22 to move away from the drill body 1-1; the pressing member 1-22 is connected to the drive gear 1-21 through the transmission member 1-24, and the transmission member 1-24 is used to convert the movement of the pressing member 1-22 away from the drill body 1-1 into the rotation of the drive gear 1-21.

[0075] With this setup, when installing the self-tapping expansion bolt 3 on the mounting surface (e.g., a wall), the drill body 1-1, along with the self-tapping expansion bolt 3, drills along the first direction. As the drilling progresses, the pressing member 1-22 contacts the mounting surface and slides closer to the drill body 1-1 under the pressure of the mounting surface. After the self-tapping expansion bolt 3 is drilled, as the drill body 1-1 retracts, the pressing member 1-22 moves away from the drill body 1-1 and resets under the action of the elastic reset member 1-23. The transmission member 1-24 can convert the movement of the pressing member 1-22 away from the drill body 1-1 into the rotation of the drive gear 1-21, so that the pressing member 1-22 drives the material belt 2 to move during the reset process, and after the pressing member 1-22 resets, it brings the next expansion bolt into the loading position, thus achieving matching of the loading process.

[0076] It is understood that, depending on different needs, the elastic reset components 1-23 can be configured in different structural forms, including but not limited to helical spring rods, gas springs, etc., and no specific limitations are made in this embodiment of the utility model.

[0077] More specifically, the transmission component 1-24 includes a transmission rack 1-241 and a transmission gear 1-242; wherein, the transmission rack 1-241 is connected to the pressing component 1-22 and is provided with helical teeth that are inclined in the positive direction, the positive direction being the direction in which the pressing component 1-22 moves away from the drilling rig body 1-1; the transmission gear 1-242 is coaxially and fixedly connected to the drive gear 1-21 and meshes with the transmission rack 1-241 through helical teeth, the helical teeth of the transmission gear 1-242 at the meshing point are inclined in the negative direction, the negative direction being the direction in which the pressing component 1-22 moves closer to the drilling rig body 1-1; the transmission rack 1-241 can elastically displace or return to its original position away from the transmission gear 1-242.

[0078] With this setup, during drilling, the transmission rack 1-241 moves closer to the drill body 1-1 along with the pressing member 1-22. Since the transmission rack 1-241 meshes with the helical teeth of the transmission gear 1-242, the transmission rack 1-241 cannot drive the transmission gear 1-242 to rotate at this time. Instead, it moves elastically away from the transmission gear 1-242 under the pressure of the transmission gear 1-242. After drilling is completed, under the action of the elastic reset member 1-23, the pressing member 1-22 drives the transmission rack 1-241 away from the drill body 1-1 to reset. At this time, the transmission rack 1-241 drives the transmission gear 1-242 that it meshes with to rotate. The transmission gear 1-242 drives the drive gear 1-21 to rotate, thereby driving the material belt 2 to move and bring the next expansion bolt into the loading position.

[0079] More specifically, the transmission rack 1-241 is hinged to the pressing member 1-22, allowing the transmission rack 1-241 to swing closer to or further away from the transmission gear 1-242. An elastic member (not shown in the figure) is provided between the transmission rack 1-241 and the pressing member 1-22. The elastic member is used to provide a preload force for the transmission rack 1-241 to swing closer to the transmission gear 1-242.

[0080] With this configuration, during drilling, the transmission rack 1-241 moves closer to the drill body 1-1 as the pressing member 1-22 moves. Under the pressure of the transmission gear 1-242, the transmission rack 1-241 elastically swings away from the transmission gear 1-242 and can maintain a tendency to return to its original position under the action of the elastic member. This allows the pressing member 1-22 to drive the transmission rack 1-241 away from the drill body 1-1 to return to its original position, thereby driving the transmission gear 1-242 to rotate.

[0081] It is understood that the specific types of elastic elements include, but are not limited to, torsion springs, coil springs, elastic sheets, etc., and the specific selection needs to be based on actual requirements. No specific restrictions are made in this embodiment of the utility model.

[0082] Furthermore, the pressing component 1-22 is provided with a guide hole 1-221 extending along its own sliding direction and adapted to the guide rail 1-3. The pressing component 1-22 is slidably fitted onto the two main body sections 1-32 of the guide rail 1-3 through the guide hole 1-221. In this configuration, the sliding and nested guide hole 1-221 and the guide rail 1-3 can provide constraint and guidance for the sliding of the pressing component 1-22, improving the smoothness and stability of the sliding of the pressing component 1-22.

[0083] Furthermore, the pressing component 1-22 is provided with a first clearance hole 1-222 and a second clearance hole 1-223; wherein, the first clearance hole 1-222 is used for the material feed strip 2 to pass through, thereby providing clearance for the material feed strip 2; the second clearance hole 1-223 is set along the above-mentioned movement trajectory to avoid the position of the self-tapping expansion bolt 3. This arrangement can effectively avoid interference between the pressing component 1-22 and the material feed strip 2 and the self-tapping expansion bolt 3.

[0084] In detail, refer to Figure 11 The pressing component 1-22 includes an end plate 1-224 and a side plate 1-225; there are two side plates 1-225, which are respectively connected to opposite sides of the end plate 1-224, making the pressing component 1-22 have a U-shaped structure. The output part is located within the space enclosed by the side plates 1-225 and the end plate 1-224. On a preset trajectory, one side plate 1-225 is located on the upstream side, and the other side plate 1-225 is located on the downstream side. The side of the end plate 1-224 facing away from the output part is formed as a pressing surface. A guide hole and a first clearance hole 1-222 are both provided on the side plate 1-225, and a second clearance hole 1-223 is provided at least on the upstream side plate 1-225 and extends from the side plate 1-225 to the end plate 1-224. With this configuration, the two side plates 1-225 of the pressing component 1-22 and the two main body sections 1-32 of the guide rail 1-3 are slidably connected through the guide through holes 1-221, which can provide guidance for the pressing component 1-22 from both sides at the same time, further improving the stability and smoothness of the sliding of the pressing component 1-22.

[0085] In a further example of this utility model, the self-tapping expansion bolt drilling machine also includes a linear drive component 1-4; the output end of the linear drive component 1-4 is fixedly connected to the drilling machine body 1-1 and is used to drive the drilling machine body 1-1 to move along a first direction. With this configuration, the drilling machine body 1-1 and the self-tapping expansion bolts 3 on it can move along the first direction under the drive of the linear drive component 1-4 to complete the drilling work.

[0086] In detail, the linear drive unit 1-4 includes a first drive unit 1-41 and a second drive unit 1-42; in the first direction, the second drive unit 1-42 is connected to the output end of the first drive unit 1-41, and the drill body 1-1 is connected to the output end of the second drive unit 1-42.

[0087] It is understood that the first driving component 1-41 and the second driving component 1-42 can be any form of linear driving element, including cylinders, hydraulic cylinders, electric actuators, etc. The specific selection and configuration need to be based on the construction scenario, and no specific restrictions are imposed in this embodiment of the utility model.

[0088] In a further example of this utility model, the self-tapping expansion bolt drill also includes a base 1-5; the end of the linear drive 1-4 away from the drill body 1-1 is fixedly connected to the base 1-5. With this configuration, the base 1-5 is used to support the drill on the ground, thereby providing bottom support for the self-tapping expansion bolt drill, facilitating the installation of self-tapping expansion bolts 3 on the top plate.

[0089] To further improve the construction efficiency of the self-tapping expansion bolt 3, in a further example of this utility model, refer to Figures 12 to 15 The output part of the self-tapping expansion bolt 3 includes an output shaft and a docking mechanism 1-6; wherein, one end of the docking mechanism 1-6 is coupled to the output shaft, and the other end is used to dock with the tail of the self-tapping expansion bolt 3.

[0090] In detail, the docking mechanism 1-6 includes an outer sleeve 1-61, an inner rod 1-62, and a coupling structure 1-63. The outer sleeve 1-61 has an opening at one end along the axial direction and a fitting hole 1-611 at the other end, which is used to connect the nut 32 at the tail of the self-tapping expansion bolt 3. The inner rod 1-62 is coaxially inserted with the outer sleeve 1-61, and the inner rod 1-62 and the outer sleeve 1-61 can rotate synchronously in the coupled state and rotate relative to each other in the decoupled state, with the inner rod 1-62 facing towards the fitting. One end of the hole 1-611 is provided with a first connecting part 1-621, and the other end is provided with a second connecting part 1-622. The second connecting part 1-622 is used to connect the output shaft. The inner rod 1-62 slides and engages with the outer tube 1-61 in the axial direction, so that the first connecting part 1-621 of the inner rod 1-62 and the bolt body 31 of the self-tapping expansion bolt 3 can be connected in the above-mentioned decoupled state and separated in the above-mentioned coupled state. The coupling structure 1-63 is suitable for coupling the inner rod 1-62 and the outer tube 1-61 in the above-mentioned coupled state.

[0091] With this configuration, after the self-tapping expansion bolt 3 enters the loading position, its axis coincides with the axis of the docking mechanism 1-6. The linear drive component 1-4 drives the drill body to move along the first direction (i.e., the axial direction of the self-tapping expansion bolt 3), causing the drill bit 35 of the self-tapping expansion bolt 3 to abut against the mounting surface. As the drive continues, under the reaction force of the wall, the self-tapping expansion bolt 3 and the docking mechanism 1-6 move closer together axially. The nut 32 of the self-tapping expansion bolt 3 is embedded in the fitting hole 1-611, and the inner rod 1-62 slides relative to the outer sleeve 1-61, coupling its first connecting part 1-621 with the tail end of the self-tapping expansion bolt 3. At this point... The drill body 1-1 transmits power to the inner rod 1-62 through the output shaft. The inner rod 1-62 drives the bolt body 31 to rotate and drill. The expansion tube 34 then enters the hole. After drilling is completed, some force is unloaded to separate the inner rod 1-62 from the tail end of the self-tapping expansion bolt 3 and couple the inner rod 1-62 with the outer sleeve 1-61. At this time, the drill body 1-1 transmits power to the inner rod 1-62 through the output shaft. The inner rod 1-62 drives the outer sleeve 1-61 to rotate and tighten the nut 32. The nut 32 squeezes the expansion tube 34 through the washer 33, forcing the expansion tube 34 to expand and completing the installation of the self-tapping expansion bolt 3.

[0092] In detail, one end of the outer sleeve 1-61 is open, forming the end opening of the outer sleeve 1-61 as described above, and the other end is provided with a polygonal fitting hole 1-611 for fitting the polygonal outer peripheral surface of the nut 32. The end of the inner rod 1-62 facing the fitting hole 1-611 is provided with a polygonal fitting groove, which is suitable for fitting with the polygonal outer peripheral surface of the tail of the bolt body 31, thus forming the first connecting part 1-621 described above. The second connecting part 1-622 is a polygonal columnar structure exposed outside the outer sleeve 1-61 and coaxially arranged with the inner rod 1-62, for fitting the polygonal bayonet of the output shaft.

[0093] In detail, the coupling structure 1-63 is located between the fitting hole 1-611 and the opening of the outer tube 1-61, and includes a first keyway 1-631 and a second keyway 1-632; wherein, the first keyway 1-631 is disposed on the outer peripheral surface of the inner rod 1-62, and the second keyway 1-632 is disposed on the inner wall of the outer tube 1-61 for matching with the first keyway 1-631. In the coupled state, the first keyway 1-631 and the second keyway 1-632 are bonded together. With this configuration, when the inner rod 1-62 moves toward the tail of the bolt body 31 and finally connects with the bolt body 31, the first keyway 1-631 and the second keyway 1-632 separate, and the inner rod 1-62 is decoupled from the outer tube 1-61. After drilling is completed, when the inner rod 1-62 moves away from the tail of the bolt body 31 and finally separates from the bolt body 31, the first keyway 1-631 and the second keyway 1-632 engage, so that the inner rod 1-62 and the outer tube 1-61 are in a coupled state.

[0094] Furthermore, the docking mechanism 1-6 also includes an elastic body 1-64, which provides a preload force to the inner rod 1-62 to move away from the fitting hole 1-611, and under the elastic force of the elastic body 1-64, the inner rod 1-62 and the outer sleeve 1-61 remain coupled.

[0095] In detail, the elastic body 1-64 includes a spring; the outer periphery of the inner rod 1-62 is provided with a first shoulder 1-623 protruding radially, and the inner wall of the outer sleeve 1-61 is provided with a second shoulder 1-612 protruding radially. The second shoulder 1-612 is close to the fitting hole 1-611 relative to the first shoulder 1-623. The spring is sleeved on the inner rod 1-62 and its two ends abut against the first shoulder 1-623 and the second shoulder 1-612 respectively.

[0096] Furthermore, to prevent the inner rod 1-62 from detaching from the outer tube 1-61, the docking mechanism 1-6 also includes a limiting structure, which includes a first stop 1-624 and a second stop 1-613. The first stop is located on the inner rod 1-62, and the second stop 1-613 is located on the outer tube 1-61. The second stop 1-613 is closer to the opening end of the outer tube 1-61 than the first stop 1-624. In the direction away from the fitting hole 1-611, the first stop 1-624 and the second stop 1-613 can abut and be limited.

[0097] In detail, the first stop 1-624 is radially protruding from the outer periphery of the inner rod 1-62, and the second stop 1-613 is a retaining ring, which is embedded in the retaining ring groove on the inner wall of the outer sleeve 1-61.

[0098] The construction equipment provided by this utility model is described below. The construction equipment described below can be referred to in correspondence with the self-tapping expansion bolt drilling machine described above.

[0099] A construction device comprising a self-tapping expansion bolt drill as provided in any of the above examples.

[0100] It is understood that, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of the different embodiments or examples.

[0101] The self-tapping expansion bolt drilling machine and construction method provided in this utility model embodiment, by setting a progressive feeding mechanism 1-2, can drive the material belt 2 that cooperates with it to move intermittently along a preset trajectory to realize the progressive automatic feeding of self-tapping expansion bolts 3. The workers only need to replace the material belt 2 with a new material belt 2 when the self-tapping expansion bolts 3 are exhausted. This effectively reduces the tedious manual material handling and feeding work, while reducing the number of work interruptions, shortening the work interval, realizing continuous operation, and further improving work efficiency.

[0102] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A self-tapping expansion bolt (3) drilling rig, characterized in that, include: The drilling rig body (1-1) is provided with an output section and a feeding position corresponding to the position of the output section in a first direction; The progressive feeding mechanism (1-2) is used to drive the material belt (2) to move intermittently along a preset trajectory. The material belt (2) stores a plurality of self-tapping expansion bolts (3), and the plurality of self-tapping expansion bolts (3) are arranged at intervals along the length direction of the material belt (2). The preset trajectory passes through the feeding position, so that the plurality of self-tapping expansion bolts (3) can enter the feeding position one by one. The output section and the self-tapping expansion bolt (3) on the loading position can be coupled relatively close to each other in the first direction.

2. The self-tapping expansion bolt (3) drilling rig according to claim 1, characterized in that, A guide rail (1-3) is fixedly connected to the drilling rig body (1-1), and the guide rail (1-3) is arranged along the preset trajectory; The guide rail (1-3) has a through groove (1-31) at least in the part of the loading position for the tail end of the self-tapping expansion bolt (3) to pass through.

3. The self-tapping expansion bolt (3) drilling rig according to claim 2, characterized in that, The guide rails (1-3) include: Two main body sections (1-32) are provided and are respectively located on both sides of the drilling rig body (1-1). In the first direction, the two main body sections (1-32) gradually approach the loading position and extend obliquely. The connecting section (1-33) is located at the feeding position and is connected to the two main sections (1-32) on both sides respectively.

4. The self-tapping expansion bolt (3) drilling rig according to claim 2, characterized in that, The progressive feeding mechanism (1-2) includes: A drive gear (1-21) is rotatably connected to the guide rail (1-3). The material strip (2) has a toothed strip (22) extending along its own length on the side facing the drive gear (1-21). The toothed strip (22) meshes with the drive gear (1-21). The drive assembly is connected to the drive gear (1-21) for driving the drive gear (1-21) to rotate intermittently.

5. The self-tapping expansion bolt (3) drilling rig according to claim 4, characterized in that, The driving component includes: The pressing element (1-22) slides in a first direction with the drilling rig body (1-1), and the feeding position is located between the drilling rig body (1-1) and the pressing element (1-22); The elastic reset member (1-23) is used to provide a preload force for the pressing member (1-22) to slide away from the drill body (1-1); The transmission component (1-24) connects the pressing component (1-22) and the drive gear (1-21) through the transmission component (1-24). The transmission component (1-24) is used to convert the movement of the pressing component (1-22) away from the drill body (1-1) into the rotation of the drive gear (1-21).

6. The self-tapping expansion bolt (3) drilling rig according to claim 5, characterized in that, The transmission component (1-24) includes: A transmission rack (1-241) is connected to the pressing member (1-22) and is provided with a forward-inclined helical tooth, wherein the forward direction is the direction in which the pressing member (1-22) moves away from the drilling rig body (1-1); The transmission gear (1-242) is coaxially and fixedly connected to the drive gear (1-21), and meshes with the transmission rack (1-241) through helical teeth. The helical teeth of the transmission gear (1-242) at the meshing point are inclined in the negative direction, which is the direction in which the pressing member (1-22) moves closer to the drilling machine body (1-1). The transmission rack (1-241) can be elastically displaced or reset in the opposite direction to the transmission gear (1-242).

7. The self-tapping expansion bolt (3) drilling rig according to claim 6, characterized in that, The transmission rack (1-241) is hinged to the pressing member (1-22), allowing the transmission rack (1-241) to swing closer to or further away from the transmission gear (1-242); An elastic element is provided between the transmission rack (1-241) and the pressing member (1-22), the elastic element being used to provide a preload force to the transmission rack (1-241) to swing close to the transmission gear (1-242).

8. The self-tapping expansion bolt (3) drilling rig according to claim 5, characterized in that, The pressing member (1-22) is provided with a guide through hole (1-221) extending along the first direction and adapted to the guide rail (1-3), the guide rail (1-3) being slidably disposed in the guide through hole (1-221); and / or, The pressing element (1-22) is provided with: The first clearance hole (1-222) is used for the material strip (2) to pass through; The second clearance hole (1-223) is set along the running trajectory of the self-tapping expansion bolt (3) to avoid the position of the self-tapping expansion bolt (3).

9. The self-tapping expansion bolt (3) drilling rig according to claim 4, characterized in that, The toothed belt (22) is provided in two parts, and the two toothed belts (22) are arranged symmetrically about the center line of the width of the material belt (2); Two drive gears (1-21) are provided, and the two drive gears (1-21) are coaxially fixedly connected and respectively mesh with the two toothed belts (22).

10. A construction equipment, characterized in that, The drilling rig includes the self-tapping expansion bolt (3) as described in any one of claims 1 to 9.

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