CN216138456U

CN216138456U - A screw thread is screwed up and is broken out device for intelligent stake machine of irritating

Info

Publication number: CN216138456U
Application number: CN202121672713.4U
Authority: CN
Inventors: 王永海; 李仕
Original assignee: Heshan Houji Construction Machinery Co ltd
Current assignee: Heshan Houji Construction Machinery Co ltd
Priority date: 2021-07-21
Filing date: 2021-07-21
Publication date: 2022-03-29
Anticipated expiration: 2031-07-21

Abstract

A thread tightening and unscrewing device for an intelligent pile grouting machine comprises a transverse moving mechanism, a driving mechanism and a tightening and unscrewing mechanism, wherein the driving mechanism is fixed on the transverse moving mechanism and comprises a tightening speed reducer and a driving shaft, and the head end of the driving shaft is connected with the tightening speed reducer; the tightening and shackle mechanism comprises a fixedly connected conduit, a movable joint, a jaw and a conduit; the tail end of the driving shaft is arranged in the fixed connection guide pipe, the tail part of the fixed connection guide pipe is sleeved with the clamping claw, the head end of the movable joint which can float up and down is arranged in the fixed connection guide pipe, and the tail end of the movable joint is provided with female threads and is connected with the guide pipe. The utility model can realize the functions of automatic screwing, unscrewing and sealing, and avoids the problems of loose threads, poor sealing, falling of a guide pipe, insufficient pile strength caused by slurry leakage and even waste piles; the floating automatic centering screw thread is screwed down, so that the labor cost and the labor intensity are reduced.

Description

A screw thread is screwed up and is broken out device for intelligent stake machine of irritating

Technical Field

The utility model relates to the field of pile grouting machines, in particular to a thread tightening and unscrewing device for an intelligent pile grouting machine.

Background

At present, the process of building pore-forming and concrete pouring is finished by manually matching a crane and a simple machine tool, the crane is adopted to lift the guide pipes, and the male thread of one guide pipe is butted and screwed with the female thread of the other guide pipe by manually taking a special spanner. The process needs 4-5 workers, one crane with more than 25 tons and one crane driver.

The above method has the following problems:

1. the manual screwing torque of the threads cannot reach the pre-tightening force of screwing the threads under the condition that the crane is suspended without fixation, so that the threads are loosened frequently, the guide pipe falls into a hole or slurry leaks, the strength of the whole pile is greatly reduced, and even the pile is wasted;

2. the guide pipe can not be ensured to be vertical to the hole when the crane hangs the guide pipe, the guide pipe is often hung on the reinforcement cage, and the guide pipe can not be smoothly dropped to the bottom of the hole;

3. the labor intensity of workers is high, the labor cost is high, and the insecurity of equipment exists.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a thread tightening and unscrewing device for an intelligent pile filling machine, so as to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme:

a thread tightening and unscrewing device for an intelligent pile grouting machine comprises a transverse moving mechanism, a driving mechanism and a tightening and unscrewing mechanism, wherein the driving mechanism is fixed on the transverse moving mechanism and comprises a tightening speed reducer and a driving shaft, and the head end of the driving shaft is connected with the tightening speed reducer;

the tightening and shackle mechanism comprises a fixedly connected conduit, a movable joint, a jaw and a conduit; the tail end of the driving shaft is arranged in the fixed connection guide pipe, the tail part of the fixed connection guide pipe is sleeved with the clamping claw, the head end of the movable joint which can float up and down is arranged in the fixed connection guide pipe, and the tail end of the movable joint is provided with female threads and is connected with the guide pipe.

Furthermore, at least one section of the guide pipe is arranged, one end of the guide pipe is a male thread, the other end of the guide pipe is a female thread, and the male thread is matched with the female thread of the movable connector.

Further, the driving shaft and the fixed connecting guide pipe are in hexagonal fit and fixed through a first nut, and the movable joint and the first nut are also in hexagonal fit to transmit torque and are fixed through a second nut.

Preferably, the hexagonal guide post of the movable joint is in hexagonal large clearance fit with the first nut.

Furthermore, an O-shaped ring groove is formed in the tail portion of the movable connector, and the O-shaped ring groove is matched with an O-shaped ring.

Preferably, at least two sections of the guide pipes are arranged up and down, and the male threads and the female threads of the end parts of the two adjacent sections of the guide pipes are matched with each other.

Furthermore, a clamping plate is arranged outside one end of the conduit, which is provided with the female thread.

Furthermore, the lower end of the male thread of the movable joint is inverted by 30 degrees, meanwhile, the section of straight end guide is in clearance fit with the minimum inner diameter of the female thread of the guide pipe, the upper end of the female thread of the guide pipe is inverted by 30 degrees, and meanwhile, the section of straight end guide is in clearance fit with the maximum outer diameter of the male thread of the movable joint.

The utility model has the following advantages:

1. the automatic screwing, unscrewing and sealing functions are realized, the loosening of threads and the untight sealing are avoided, the guide pipe falls off, and the pile strength is insufficient or even the pile is wasted due to slurry leakage;

2. the floating automatic centering screw thread is screwed down, so that the labor cost and the labor intensity are reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a longitudinal cross-sectional view of the present invention;

FIG. 3 is a view of the movable joint engaged with a first conduit;

FIG. 4 is a state diagram of the use of the present invention;

fig. 5 is a longitudinal sectional view showing a state of use of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 5, a screw tightening and unscrewing device for an intelligent pile grouting machine includes a traverse mechanism 1, a driving mechanism and a tightening and unscrewing mechanism, the driving mechanism is fixed on the traverse mechanism, the driving mechanism includes a tightening reducer 21 and a driving shaft 22, and a head end of the driving shaft 22 is connected with the tightening reducer 21;

the screwing and unscrewing mechanism comprises a fixed connecting conduit 31, a movable joint 32, a jaw 33 and a first conduit 34; the tail end of the driving shaft 22 is arranged in the fixed connecting guide pipe 31, the tail part of the fixed connecting guide pipe 31 is sleeved with a clamping claw 33, the head end of the movable joint 32 capable of floating up and down is arranged in the fixed connecting guide pipe 31, and the tail end is provided with female threads and is connected with the first guide pipe 34.

Wherein, among this technical scheme, be equipped with the pipe that two sections set up from top to bottom, the pin thread and the box thread of two sections pipe ends for first pipe 34 and the second pipe 35 that set up from top to bottom are mutually supported.

In the embodiment, the transverse moving mechanism is provided with a first bearing 11 and a second bearing 12, a driving shaft 22 is matched with the first bearing 11 and the second bearing 12, the driving shaft 22 is connected with the tightening speed reducer 21 through a spline, the driving shaft 22 and the fixed connecting conduit 31 are fixed by a first nut 41 through hexagonal matching, the movable joint 32 and the first nut 41 are fixed by a second nut 42 through hexagonal matching for transmitting torque, a hexagonal guide pillar of the movable joint 32 is in hexagonal large clearance fit with the first nut 41, the movable joint 32 can float up and down along the vertical direction and can be finely adjusted in the hexagonal matching clearance range along the horizontal direction, the tail of the movable joint 32 is provided with an O-shaped ring groove, and the O-shaped ring groove is matched with an O-shaped ring 30; when a hydraulic system provides a hydraulic oil source for a motor of a tightening speed reducer 21 to rotate positively, the motor of the tightening speed reducer 21 drives the speed reducer to rotate, torque is transmitted through a spline to enable a driving shaft 22 to rotate around a first bearing 11 and a second bearing 12, the driving shaft 22 drives a first nut 41 to rotate through the torque transmitted in a hexagonal mode and simultaneously a movable joint 32 rotates together, accordingly, male threads on the movable joint 32 and female threads on a first guide pipe 34 are automatically tightened, sealing is achieved through compression of an O-shaped ring, and the process is repeated to achieve multi-section guide pipe connection. When a hydraulic system provides a hydraulic oil source for a motor of the tightening speed reducer 21 to reversely rotate, the motor of the tightening speed reducer 21 drives the speed reducer to rotate, torque is transmitted through a spline to enable the driving shaft 22 to rotate around the first bearing 11 and the second bearing 12, the driving shaft 22 drives the first nut 41 to rotate through hexagonal torque transmission and simultaneously the movable joint 32 rotates together, so that automatic unscrewing of male threads on the movable joint 32 and female threads on the first guide pipe 34 is realized, and all guide pipe dismantling is realized by repeating the process.

However, in the above process, the male thread and the female thread are not on the same central line due to the reasons of processing, assembling, clamping and the like, and the threads cannot be smoothly butted. Aiming at the problems, the technical scheme adopts a floating automatic centering thread butt joint structure as follows: as shown in FIG. 3, the lower end of the male thread of the movable joint 32 is tapered by 30 degrees, while a straight end guide is in clearance fit with the minimum inner diameter of the female thread of the first conduit 34, and the upper end of the female thread of the first conduit 34 is tapered by 30 degrees, while a straight end guide is in clearance fit with the maximum outer diameter of the male thread of the movable joint 32. When the movable joint 32 is not concentric with the first guide pipe 34, the movable joint 32 and the first guide pipe 34 are guided to be in conical transition through the movable joint 32 and the first guide pipe 34, and when the movable joint 32 continues to move downwards, the straight ends of the movable joint 32 and the first guide pipe 34 are guided to realize automatic concentricity. When the male thread of the movable joint 32 shown in fig. 2 and the female thread of the first conduit 34 are automatically centered through guiding, the large clearance between the hexagonal guide pillar of the movable joint 32 and the hexagonal shape of the first nut 41 is adjusted, so that the center line of the movable joint 32 is ensured to be vertical, and smooth screwing of the threads is ensured.

When the second conduit 35 is clamped and fixed in the pipe clamping mechanism, and when a hydraulic system provides a hydraulic oil source for a motor of the screwing speed reducer 21 to reversely rotate, the connecting threads of the second conduit 35 and the first conduit 34 cannot be loosened first, and the connecting threads of the movable joint 32 and the first conduit 34 are loosened later, aiming at the problem, the clamping jaw 33 is welded on the fixed connecting conduit 31, the clamping plate 36 is welded outside one end of the first conduit 34 and the second conduit 35, which is provided with the female threads, and the clamping plate 36 and the clamping jaw 33 are moved downwards through the transverse moving mechanism 1 to reach the position shown in fig. 5, so that the fixed connecting conduit 31 and the first conduit 34 cannot move relatively through the clamping plate 36, and the second conduit 35 and the first conduit 34 are loosened first.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A thread tightening and unscrewing device for an intelligent pile grouting machine comprises a transverse moving mechanism, a driving mechanism and a tightening and unscrewing mechanism, wherein the driving mechanism is fixed on the transverse moving mechanism and comprises a tightening speed reducer and a driving shaft, and the head end of the driving shaft is connected with the tightening speed reducer; the device is characterized in that the screwing and unscrewing mechanism comprises a fixedly connected conduit, a movable joint, a jaw and a conduit; the tail end of the driving shaft is arranged in the fixed connection guide pipe, the tail part of the fixed connection guide pipe is sleeved with the clamping claw, the head end of the movable joint which can float up and down is arranged in the fixed connection guide pipe, and the tail end of the movable joint is provided with female threads and is connected with the guide pipe.

2. The thread tightening and unscrewing device for the intelligent pile pouring machine as claimed in claim 1, wherein at least one section of the guide pipe is provided, one end of the guide pipe is a male thread, the other end of the guide pipe is a female thread, and the male thread is matched with the female thread of the movable joint.

3. The thread tightening and unscrewing device for the intelligent pile-filling machine as claimed in claim 2, wherein at least two sections of the guide pipes are arranged up and down, and the male threads and the female threads of the ends of the two adjacent sections of the guide pipes are matched with each other.

4. The thread tightening and unscrewing device for the intelligent pile grouting machine as claimed in claim 2 or 3, wherein the driving shaft and the fixed connecting guide pipe are in hexagonal fit and fixed through a first nut, and the movable joint and the first nut are also in hexagonal fit to transmit torque and are fixed through a second nut.

5. The thread tightening and unscrewing device for an intelligent pile pouring machine as claimed in claim 4, wherein the hexagonal guide post of the movable joint is in hexagonal large clearance fit with the first nut.

6. The thread tightening and unscrewing device for an intelligent pile grouting machine as claimed in claim 4, wherein an O-shaped ring groove is formed in the tail portion of the movable joint, and the O-shaped ring groove is adapted to be provided with an O-shaped ring.

7. The thread tightening and unscrewing device for an intelligent pile pouring machine as claimed in claim 4, wherein a clamping plate is provided outside the end of the conduit provided with the female thread.

8. The thread tightening and unscrewing device for the intelligent pile grouting machine as claimed in claim 4, wherein the lower end of the male thread of the movable joint is inverted 30 ° conical, while a straight end guide is in clearance fit with the minimum inner diameter of the female thread of the guide pipe, and an upper end of the female thread of the guide pipe is inverted 30 ° conical, while a straight end guide is in clearance fit with the maximum outer diameter of the male thread of the movable joint.