Automatic installation equipment for expansion bolts

Abstract

The invention discloses automatic installation equipment for expansion bolts. The automatic installation equipment comprises a bolt lifting module and a bolt locking module. The bolt locking module comprises a mounting base, an operation mechanism and a vertical driving mechanism, wherein the operation mechanism is arranged on the mounting base and used for feeding an expansion bolt to be mounted into a preset hole and screwing a locking nut on the expansion bolt so as to lock the expansion bolt on the preset hole, and the vertical driving mechanism is used for driving the mounting base to move vertically. The operating mechanism comprises a sleeve arranged on the mounting seat and a power transmission driving mechanism used for transmitting power of the vertical driving mechanism to the sleeve to drive the sleeve to rotate; the sleeve is rotationally connected to the mounting base and is of a hollow structure, and a locking opening matched with the locking nut is formed in the upper end of the sleeve. The automatic installation equipment for the expansion bolt has the advantages of being simple in structure and low in manufacturing cost.

Description

Technical Field

[0001] This invention belongs to the field of construction, and specifically relates to an automatic expansion bolt installation device. Background Technology

[0002] After the walls of subway tunnels, culverts, and other structures are completed, expansion bolts are typically installed to provide a fixed foundation for the subsequent installation of pipework such as communication cables, power lines, ventilation, and water supply and drainage systems. Currently, the installation of these expansion bolts is still mainly done manually, and the complete construction process involves multiple manual steps: First, workers use a hand-held impact drill to drill bolt holes on the building surface. After drilling, the expansion bolts are manually inserted into the holes, and then the nuts on the expansion bolts are turned with a wrench to expand and fix the bolts. After the expansion bolts are installed in place, the hanging components or brackets are then manually installed on the bolts to prepare for the subsequent installation of suspended objects.

[0003] The aforementioned manual construction methods have many inherent drawbacks: on the one hand, the entire construction process relies entirely on manual labor, which not only requires a large investment of manpower, but also results in low efficiency in manual drilling, bolt insertion, nut tightening, and bracket installation, making it difficult to meet the needs of large-scale, high-efficiency construction; on the other hand, when workers are drilling with hand-held impact drills, they are easily affected by equipment vibration, leading to insufficient drilling accuracy. Furthermore, when working at heights or in confined spaces, the use of impact drills and the installation of bolts pose certain safety hazards and can easily cause personnel injuries.

[0004] To address the drawbacks of manual construction, some automated construction equipment for installing expansion bolts has emerged, aiming to replace manual labor in drilling, bolt insertion, and tightening through mechanical structures. However, existing automated equipment still has significant design shortcomings: during installation, the vertical lifting movement of the working mechanism (for feeding the bolt into the hole) and the rotary locking movement (for securing the nut) require separate power drive mechanisms. This design not only increases the overall structural complexity of the equipment and the difficulty of assembling components, but also increases the workload and cost of subsequent maintenance. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, the present invention provides an automatic expansion bolt installation device, which has the advantages of simple structure and low manufacturing cost.

[0006] The technical solution of the present invention to solve the above-mentioned technical problems is:

[0007] An automatic expansion bolt installation device includes a bolt lifting module for driving the expansion bolt vertically to the installation position, and a bolt locking module for installing the expansion bolt into a preset opening at the installation position.

[0008] The bolt locking module includes a mounting base, a working mechanism mounted on the mounting base, and a vertical drive mechanism for driving the mounting base to move vertically. The working mechanism is used to feed the expansion bolt to be installed into a preset opening and tighten the locking nut on the expansion bolt. The working mechanism includes a sleeve mounted on the mounting base and a power transmission drive mechanism for driving the sleeve to rotate. The sleeve has a hollow structure, and its upper end has a locking port that mates with the locking nut. When the locking port at the upper end of the sleeve mates with the locking nut, the power transmission drive mechanism transmits the power from the vertical drive mechanism to the sleeve to drive it to rotate.

[0009] Preferably, the vertical drive mechanism includes a bracket, a vertical drive motor mounted on the bracket, and a lead screw transmission mechanism, wherein the vertical drive motor is mounted on the bracket; the lead screw transmission mechanism includes a rotating rod and a lead screw nut, wherein the rotating rod includes a lead screw located at the lower part and an extension rod connected to the upper end of the lead screw; the rotating rod is vertically mounted on the bracket, and the lead screw nut in the lead screw transmission mechanism is mounted on the mounting base, and the lead screw nut cooperates with the lead screw.

[0010] Preferably, the lower end of the sleeve is provided with a rotating sleeve integrally formed therewith; the rotating sleeve extends vertically downward; the mounting base is provided with a bearing seat at a position corresponding to the rotating sleeve; the bearing seat and the rotating sleeve are connected by a bearing.

[0011] Preferably, a pull rod is provided on the bearing seat, and a stop block integrally formed therewith is provided inside the rotating sleeve; the pull rod extends vertically upward and passes through the stop block and connects to the limiting block, the stop block is provided with a clearance hole that cooperates with the pull rod, and the outer diameter of the limiting block is larger than the outer diameter of the pull rod.

[0012] Preferably, the power transmission drive mechanism includes a driving bevel gear and a driven bevel gear, wherein the driving bevel gear is mounted on the extension rod; the driven bevel gear is mounted on the rotating sleeve, and a vertical sliding structure is provided between the driven bevel gear and the rotating sleeve to cause the driven bevel gear to rise and fall; when the driven bevel gear rises to engage with the driving bevel gear, the sleeve rotates.

[0013] Preferably, the driving bevel gear and the extension rod are connected by a one-way bearing.

[0014] Preferably, a limiting part is provided on the extension rod; the driving bevel gear is located above the limiting part; a return spring is provided between the lead screw nut and the limiting part, and the return spring is sleeved on the extension rod.

[0015] Preferably, a compression spring is provided between the driven bevel gear and the sleeve, and the compression spring is sleeved on the rotating sleeve.

[0016] Preferably, the vertical sliding structure includes a keyway disposed on the rotating sleeve and a flat key disposed on the driven bevel gear and cooperating with the keyway, wherein the keyway extends vertically on the rotating sleeve.

[0017] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0018] 1. The automatic expansion bolt installation device of the present invention transmits the power of the vertical drive mechanism to the sleeve through the power transmission drive mechanism to drive the sleeve to rotate, thereby tightening the locking nut. This helps to simplify the structure of the automatic expansion bolt installation device of the present invention and reduce its manufacturing cost.

[0019] 2. Compared with the existing technology, the automatic expansion bolt installation equipment of the present invention has the advantages of simpler structure and lower manufacturing cost, and has good market application prospects and promotion value. Attached Figure Description

[0020] Figures 1-3 These are schematic diagrams of the expansion bolt automatic installation device of the present invention from three different perspectives (during operation).

[0021] Figure 4 This is a schematic diagram of the power transmission drive mechanism.

[0022] Figure 5 This is a schematic diagram of the tie rod.

[0023] Figure 6 This is a structural diagram of an expansion bolt (with mounting plate).

[0024] Figure 7 and Figure 8 These are structural schematic diagrams of the bolt lifting module from two different perspectives.

[0025] Figure 9 This is a structural schematic diagram of the automatic expansion bolt installation device of the present invention (before operation). Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0027] See Figures 1-9 The automatic expansion bolt installation device of the present invention includes a bolt lifting module 2 mounted on a frame 1 for driving the expansion bolt to move vertically to the installation position, and a bolt locking module 3 for installing the expansion bolt in a preset hole opened by a drilling module.

[0028] See Figures 1-9 The expansion bolts are installed on the mounting plate 5, and there are two sets of expansion bolts on each mounting plate 5.

[0029] See Figures 1-9 The bolt locking module 3 includes a mounting base 304, a working mechanism disposed on the mounting base 304 for feeding the expansion bolts of the mounting plate 5 to be installed into the preset opening and tightening the locking nut on the expansion bolts to lock the mounting plate 5 onto the preset opening on the building surface, and a vertical drive mechanism for driving the mounting base 304 to move vertically.

[0030] The working mechanism includes a sleeve 305 disposed on the mounting base 304 and a power transmission drive mechanism for transmitting the power of the vertical drive mechanism to the sleeve 305 to drive the sleeve 305 to rotate; the sleeve 305 is rotatably connected to the mounting base 304 and has a hollow structure, and the upper end of the sleeve 305 is provided with a locking port 314 that cooperates with the locking nut;

[0031] The vertical drive mechanism includes a bracket 301, a vertical drive motor 302 mounted on the bracket 301, and a lead screw transmission mechanism 303. The vertical drive motor 302 is mounted on the bracket 301. The lead screw transmission mechanism 303 includes a rotating rod and a lead screw nut. The rotating rod includes a lead screw located at the lower part and an extension rod connected to the upper end of the lead screw. The rotating rod is vertically mounted on the bracket 301, and the lead screw nut in the lead screw transmission mechanism is mounted on the mounting base 304. The lead screw nut cooperates with the lead screw.

[0032] In this embodiment, the lower end of the sleeve 305 is provided with a rotating sleeve 311 integrally formed therewith, and the rotating sleeve 311 extends vertically downward; the mounting base 304 is provided with a bearing seat 309 at a position corresponding to the rotating sleeve 311; the bearing seat 309 and the rotating sleeve 311 are connected by a bearing.

[0033] See Figures 1-9The power transmission drive mechanism includes a driving bevel gear 306 and a driven bevel gear 307. The driving bevel gear 306 is mounted on the extension rod and connected to the extension rod via a one-way bearing. The driven bevel gear 307 is mounted on the rotating sleeve 311. A vertical sliding structure is provided between the driven bevel gear 307 and the rotating sleeve 311 to facilitate the lifting and lowering of the driven bevel gear 307. The vertical sliding structure includes a keyway on the rotating sleeve 311 and a flat key on the driven bevel gear 307 that mates with the keyway. The keyway extends vertically on the rotating sleeve 311 to ensure that the driven bevel gear 307 can lift and lower on the rotating sleeve 311, and can drive the rotating sleeve 311 to rotate when the driven bevel gear 307 rotates. When the driven bevel gear 307 rises to engage with the driving bevel gear 306, the sleeve 305 rotates.

[0034] With the above configuration, the vertical drive motor 302 can drive the rotating rod to rotate, thereby driving the lead screw nut and the mounting base 304 connected to the lead screw nut to rise and fall, thus driving the bolt locking module 3 to move upward. During this process, the locking port 314 on the sleeve 305 cooperates with the locking nut of the expansion bolt, and drives the expansion bolt to move upward synchronously, thereby pushing the expansion bolt into the preset opening. After the expansion bolt is pushed into the preset opening, as the lead screw continues to rotate, the driven bevel gear 307 rises to the height position that cooperates with the driving bevel gear 306, and the two form a meshing cooperation. At this time, the driving bevel gear 306 drives the driven bevel gear 307 to rotate, thereby driving the rotating sleeve 311 and the sleeve 305 connected to the rotating sleeve 311 to rotate. By tightening the locking nut, the expansion bolt and the mounting plate 5 are locked and fixed to the top surface of the building.

[0035] See Figures 1-9 A compression spring 308 is provided between the driven bevel gear 307 and the sleeve 305, and the compression spring 308 is sleeved on the rotating sleeve 311; the above arrangement has the following advantages:

[0036] (1) During the operation of pushing the expansion bolt into the preset opening, if the resistance between the expansion bolt and the inner wall of the opening is too great, the compression spring 308 will generate elastic compression and accumulate elastic potential energy. As the sleeve 305 continues to move upward, the compression amount of the compression spring 308 gradually increases, and the accumulated elastic potential energy increases synchronously. When the elastic potential energy accumulates to a certain level, that is, when the elastic force generated by the compression spring 308 is greater than the resistance between the expansion bolt and the inner wall of the opening, the compression spring 308 releases the elastic potential energy, thereby driving the sleeve 305 to move upward quickly and generate instantaneous impact force to push the expansion bolt into the preset opening quickly.

[0037] (2) When the expansion bolt is fully inserted into the preset opening, the driving bevel gear 306 and the driven bevel gear 307 are not fully meshed, and there is still a gap between them. At this time, the entire transmission system has not yet entered the bevel gear meshing transmission stage, and the screw lifting transmission is still the main method. In this state, the vertical drive motor 302 continuously outputs power to drive the screw to continue rotating. Since the screw nut is still meshed with the screw at this time, the rotation of the screw will be converted into the linear motion of the screw nut, which will drive the mounting seat 304 connected to the screw nut to continue moving upward. The upward displacement of the mounting seat 304 will generate axial pressure on the compression spring 308, causing the compression spring 308 to gradually undergo elastic compression. This compression process provides displacement compensation for the precise meshing of the driving bevel gear 306 and the driven bevel gear 307, and also plays a buffering and limiting role for the movement of the mounting seat 304. As the mounting seat 304 continues to move upward... Until the lead screw nut on the mounting base 304 moves to the extension rod and separates from the lead screw (i.e., the bottom of the threaded structure of the lead screw nut is exactly at the junction of the lead screw and the extension rod), the driving bevel gear 306 and the driven bevel gear 307 complete precise meshing, and the transmission system switches from lead screw lifting transmission to bevel gear meshing transmission. After the switch is completed, the vertical drive motor 302 continues to drive the lead screw to rotate, but at this time the lead screw nut has separated from the lead screw and lost the meshing driving force of the lead screw. Therefore, the lead screw nut and the mounting base 304 connected to it no longer undergo lifting movement. At the same time, the driving bevel gear 306 is fixedly connected to the extension rod, so the driving bevel gear 306 will rotate synchronously with the rotation of the lead screw, and then drive the driven bevel gear 307 to rotate synchronously through the meshing action of the bevel gear, ultimately realizing the conversion of the power transmission direction and the driving of the subsequent actuator.

[0038] In addition, to limit the maximum elongation of the sleeve 305, a pull rod 313 is provided on the bearing seat 309, and a stop block integrally formed therewith is provided inside the rotating sleeve 311; the pull rod 313 extends vertically upward, passes through an avoidance hole on the stop block that matches the pull rod 313, and connects to the limiting block 312; the outer diameter of the limiting block 312 is larger than the outer diameter of the pull rod 313; thus, in the process of separating the locking port 314 of the sleeve 305 from the locking nut of the expansion bolt by driving the bolt locking module 3 to move downward, the sleeve 305 remains stationary in the initial stage, and as the mounting seat 304 moves downward... Simultaneously, the bearing housing 309 and the pull rod 313 mounted on the bearing housing 309 move downward together. At this time, the compression spring 308 sleeved on the rotating sleeve 311 will gradually release the compression, the compression amount will gradually decrease and return to the initial length. When the limiting block 312 on the pull rod 313 abuts against the stop block inside the rotating sleeve 311 and limits it, the pull rod 313 continues to move downward and drives the rotating sleeve 311 to move downward synchronously, thereby driving the sleeve 305 to move downward together with the rotating sleeve 311, so that the locking port 314 of the sleeve 305 is completely separated from the locking nut of the expansion bolt, and finally the downward reset of the bolt locking module 3 is completed.

[0039] See Figures 1-9The extension rod is provided with a limiting part; the driving bevel gear 306 is located above the limiting part; a return spring 310 is provided between the lead screw nut and the limiting part, and the return spring 310 is sleeved on the extension rod; by providing the return spring 310, when the lead screw nut moves to the junction of the lead screw and the extension rod, the lead screw nut will generate an axial compressive force on the return spring 310, so as to cause the return spring 310 to undergo elastic compression and store elastic potential energy; according to Hooke's law, the return spring 310 in the compressed state will generate a reverse elastic force, which acts on the lead screw nut, making it always have a downward tendency, thereby pushing the lead screw nut to disengage from the extension rod and re-engage with the lead screw. During the forward rotation of the lead screw, the lead screw generates an upward driving force on the lead screw nut through thread engagement. This upward driving force is greater than the downward elastic force generated by the return spring 310. After the two forces are balanced, the lead screw nut will not undergo significant up-and-down displacement, but will remain stationary or experience slight up-and-down swaying at the junction of the lead screw and the extension rod. This stable state ensures that the driving bevel gear 306 and the driven bevel gear 307 are always in a precise meshing state, thereby avoiding bevel gear meshing failure due to displacement deviation of the lead screw nut, and thus ensuring the stability and continuity of power transmission. When the lead screw rotates in the reverse direction, the upward driving force of the lead screw on the lead screw nut disappears. At this time, the elastic potential energy stored in the return spring 310 is released, and the downward elastic force generated by it becomes the dominant force acting on the lead screw nut, thereby pushing the lead screw nut to re-engage precisely with the lead screw. At the same time, the reverse rotation of the lead screw is converted into the downward linear motion of the lead screw nut through thread engagement, which in turn drives the mounting base 304 connected to the lead screw nut to move downward synchronously, realizing the reset action of each component.

[0040] See Figures 1-9 The bolt lifting module 2 includes a frame 1, a positioning frame 202, and a lifting drive mechanism 4 for driving the support 301 to move vertically. The lifting drive mechanism 4 is mounted on the frame 1, and its drive end is connected to the support 301. The positioning frame 202 is located above the support 301 and is connected to the frame 1 via a vertical sliding mechanism. The positioning frame 202 is provided with a positioning seat 201, which has a vertically connected positioning groove. Below the positioning groove is a clamping mechanism 6 for clamping the expansion bolts in the mounting plate 5, which is mounted on the positioning seat 201. The lifting drive mechanism 4 drives the support 301 to move upward, and the upper part of the support 301 contacts the positioning frame 202, thereby achieving synchronous lifting of the bolt lifting module 2 and the bolt locking module 3.

[0041] In this embodiment, the specific structures of the clamping mechanism 6 and the lifting drive mechanism 4 can be implemented with reference to the relevant structures disclosed in the invention patent with patent number ZL202110159172.3, which discloses "a fastener construction device with adjustable installation posture".

[0042] See Figures 1-9 The working principle of the automatic expansion bolt installation device of the present invention is as follows:

[0043] During construction, the feeding module transports the mounting plate 5 and the expansion bolts mounted on the mounting plate 5 to the positioning seat 201. The clamping mechanism 6 located at the bottom of the positioning seat 201 clamps and positions the expansion bolts in the mounting plate 5 within the positioning seat 201. Subsequently, the automatic expansion bolt installation device of the present invention is moved to the preset installation position, where an opening has been pre-drilled by the drilling module. By adjusting the position of the positioning seat 201, the upper end of the expansion bolt in the mounting plate 5 within the positioning seat 201 is precisely aligned with the opening.

[0044] After alignment, the lifting drive mechanism 4 drives the bracket 301 upward, thereby pushing the positioning seat 201 on the positioning frame 202 and the mounting plate 5 carried by the positioning seat 201 upward synchronously. At the same time, the bolt locking module 3 also moves upward synchronously. During this process, the lower end of the expansion bolt is continuously clamped and constrained by the clamping mechanism 6. Driven by the lifting drive mechanism 4, the upper end of the expansion bolt extends into the opening in the ceiling of the building. After the expansion bolt extends to the preset position, the clamping mechanism 6 releases the clamping constraint on the expansion bolt. Subsequently, the vertical drive motor 302 drives the rotating rod to rotate forward, thereby driving the lead screw nut and the mounting seat 304 fixedly connected to the lead screw nut to rise, thereby driving the bolt locking module 3 upward. During this process, the locking port 314 of the sleeve 305 cooperates with the locking nut of the expansion bolt and moves upward, thereby driving the entire expansion bolt into the opening. During this process, since a compression spring 308 is provided between the driven bevel gear 307 and the sleeve 305, and the compression spring 308 is sleeved on the rotating sleeve 311, during the upward movement, the mounting base 304 transmits the upward power to the sleeve 305 through the driven bevel gear 307 and the compression spring 308 to push the locking nut and expansion bolt upward as a whole. Therefore, the stiffness of the compression spring 308 is set to be sufficient to push the locking nut and expansion bolt upward as a whole. However, when the expansion bolt is pushed into the opening, if the expansion bolt and... If the resistance between the inner walls of the opening is too great, the compression spring 308 will undergo elastic compression and accumulate elastic potential energy. As the sleeve 305 continues to rise, the compression amount of the compression spring 308 will gradually increase, and the accumulated elastic potential energy will also increase simultaneously. When the elastic force generated by the compression spring 308 is greater than the resistance between the expansion bolt and the inner wall of the opening, the compression spring 308 will release its elastic potential energy, driving the sleeve 305 to push upward, forming an instantaneous impact effect to ensure that the expansion bolt can be pushed smoothly and completely into the opening.

[0045] When the expansion bolt is fully pushed into the opening, the driven bevel gear 307 is still not engaged with the driving bevel gear 306. As the lead screw continues to rotate, the driven bevel gear 307 will further compress the compression spring 308 to a certain extent until the lead screw nut moves to the end of the lead screw (i.e., the end of the lead screw with the threaded part). At this time, the lead screw nut leaves the threaded structure in the lead screw and can no longer move upward. At this time, the driven bevel gear 307 engages with the driving bevel gear 306. At this time, the driving bevel gear 306 drives the driven bevel gear 307 to rotate, thereby driving the rotating sleeve 311 and the sleeve 305 connected to the rotating sleeve 311 to rotate synchronously. By rotating the locking nut, the expansion bolt is riveted to reliably lock and fix the mounting plate 5 to the inner top surface of the building.

[0046] After the expansion bolt is tightened, the vertical drive motor 302 drives the rotating rod to rotate in the opposite direction. Since the extension rod on the rotating rod is connected to the driving bevel gear 306 through a one-way bearing, the driving bevel gear 306 will not rotate when the rotating rod rotates in the opposite direction, or the torque generated by the rotation of the driving bevel gear 306 is insufficient to drive the driven bevel gear 307 to rotate. Therefore, the rotation of the rotating rod only drives the lead screw nut and the mounting base 304 connected to it to move downward, thereby driving the bolt locking module 3 to move downward, realizing the separation of the locking port 314 of the sleeve 305 from the locking nut of the expansion bolt. During the above process, the return spring 310 applies a downward force to the lead screw nut so that the lead screw nut can reconnect with the lead screw nut. The threads in the rod engage; during this reset process, the sleeve 305 remains stationary in the initial stage. As the mounting base 304 descends, it synchronously drives the bearing seat 309 and the pull rod 313 fixed on the bearing seat 309 to move downwards, causing the compression spring 308 sleeved on the rotating sleeve 311 to gradually release its compression, the compression amount gradually decreases, and it returns to its initial length. When the limiting block 312 on the pull rod 313 abuts against the stop block inside the rotating sleeve 311, the downward driving force of the pull rod 313 is transmitted to the rotating sleeve 311, thereby driving the rotating sleeve 311 and the sleeve 305 to move downwards synchronously, so that the locking port 314 of the sleeve 305 is completely separated from the locking nut, completing the downward reset of the bolt locking module 3. After the reset is completed, the lifting drive mechanism 4 drives the bracket 301 to move downwards to the initial position, and the positioning frame 202 also moves downwards to the initial position under its own weight, waiting for the next construction cycle.

[0047] The above are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above content. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present invention shall be considered equivalent substitutions and shall be included within the protection scope of the present invention.

Claims

1. An automatic expansion bolt installation device, characterized in that, It includes a bolt lifting module for driving the expansion bolt vertically to the installation position, and a bolt locking module for installing the expansion bolt into a preset opening at the installation position. The bolt locking module includes a mounting base, a working mechanism mounted on the mounting base, and a vertical drive mechanism for driving the mounting base to move vertically. The working mechanism is used to feed the expansion bolt to be installed into a preset opening and tighten the locking nut on the expansion bolt. The working mechanism includes a sleeve mounted on the mounting base and a power transmission drive mechanism for driving the sleeve to rotate. The sleeve has a hollow structure, and its upper end has a locking port that mates with the locking nut. When the locking port at the upper end of the sleeve mates with the locking nut, the power transmission drive mechanism transmits the power from the vertical drive mechanism to the sleeve to drive it to rotate.

2. The automatic expansion bolt installation equipment according to claim 1, characterized in that, The vertical drive mechanism includes a bracket, a vertical drive motor mounted on the bracket, and a lead screw transmission mechanism. The vertical drive motor is mounted on the bracket. The lead screw transmission mechanism includes a rotating rod and a lead screw nut. The rotating rod includes a lead screw at the lower part and an extension rod connected to the upper end of the lead screw. The rotating rod is vertically mounted on the bracket, and the lead screw nut in the lead screw transmission mechanism is mounted on the mounting base. The lead screw nut cooperates with the lead screw.

3. The automatic expansion bolt installation equipment according to claim 2, characterized in that, The lower end of the sleeve is provided with a rotating sleeve integrally formed therewith; the rotating sleeve extends vertically downward; the mounting base is provided with a bearing seat at a position corresponding to the rotating sleeve; the bearing seat and the rotating sleeve are connected by a bearing.

4. The automatic expansion bolt installation equipment according to claim 3, characterized in that, A pull rod is provided on the bearing seat, and a stop block integrally formed therewith is provided inside the rotating sleeve; the pull rod extends vertically upward and passes through the stop block and connects with the limiting block, the stop block is provided with a clearance hole that cooperates with the pull rod, and the outer diameter of the limiting block is larger than the outer diameter of the pull rod.

5. The automatic expansion bolt installation equipment according to claim 4, characterized in that, The power transmission drive mechanism includes a driving bevel gear and a driven bevel gear. The driving bevel gear is mounted on the extension rod. The driven bevel gear is mounted on the rotating sleeve. A vertical sliding structure is provided between the driven bevel gear and the rotating sleeve to cause the driven bevel gear to rise and fall. When the driven bevel gear rises to engage with the driving bevel gear, the sleeve rotates.

6. The automatic expansion bolt installation equipment according to claim 5, characterized in that, The drive bevel gear and the extension rod are connected by a one-way bearing.

7. The automatic expansion bolt installation equipment according to claim 6, characterized in that, The extension rod is provided with a limiting part; the driving bevel gear is located above the limiting part; a return spring is provided between the lead screw nut and the limiting part, and the return spring is sleeved on the extension rod.

8. The automatic expansion bolt installation equipment according to claim 7, characterized in that, A compression spring is provided between the driven bevel gear and the sleeve, and the compression spring is sleeved on the rotating sleeve.

9. The automatic expansion bolt installation equipment according to claim 8, characterized in that, The vertical sliding structure includes a keyway provided on the rotating sleeve and a flat key provided on the driven bevel gear that mates with the keyway, wherein the keyway extends vertically on the rotating sleeve.

Images