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CN-121992943-A - Group bolt installation device and method

CN121992943ACN 121992943 ACN121992943 ACN 121992943ACN-121992943-A

Abstract

The invention relates to the technical field of equipment installation, in particular to a group bolt installation device and a group bolt installation method, the device comprises a rigid main frame fixed on the concrete cushion layer through an adjustable supporting leg and a positioning disk connected with the main frame through an adjustable connecting handle. The positioning disc is provided with bolt positioning holes which are arranged according to the point positions of the equipment bolts, and the aperture of the positioning holes is larger than the diameter of the rod of the foundation bolt, so that the single foundation bolt has a three-dimensional fine adjustment function. The whole elevation, levelness and plane position of the positioning disc and the foundation bolt group can be accurately controlled by respectively adjusting the supporting legs and the connecting handles. According to the invention, the foundation bolt groups are connected into a whole through the rigid frame, the whole calibration is carried out by using equipment such as a total station and the like, and the impact is resisted by depending on the rigidity of the frame in the concrete pouring process, so that the final forming precision of the foundation bolt groups is effectively ensured, and the problems of unstable fixation and difficult control of precision in the traditional method are solved.

Inventors

  • DONG LEI
  • FENG HONGYU
  • LI YUEHUAN
  • ZHENG SHUANG
  • MENG QINGYONG
  • MA XIAOYANG

Assignees

  • 中国二十二冶集团有限公司

Dates

Publication Date
20260508
Application Date
20260210

Claims (9)

  1. 1. The group bolt installation device is characterized by comprising a main frame (1), wherein a plurality of adjustable supporting legs (2) are arranged at the bottom of the main frame (1), a base plate (3) is arranged at the lower end of each adjustable supporting leg (2), and the base plate (3) is fixed on a concrete cushion layer (4) through expansion bolts; A positioning disc (5) is arranged in the main frame (1), a plurality of bolt positioning holes are formed in the positioning disc (5), and the positions of the bolt positioning holes are set according to the installation point positions of preset foundation bolts (7); The positioning disc (5) is connected with the main frame (1) through an adjustable connecting handle (6), and the position of the positioning disc (5) can be adjusted by adjusting the length of the adjustable connecting handle (6).
  2. 2. The group bolt mounting apparatus according to claim 1, wherein the diameter D 1 of the bolt positioning hole is D 2 +2mm≤D 1 ≤D 2 +10mm with respect to the diameter D 2 of the anchor bolt (7) to be mounted, the anchor bolt (7) penetrates the spacer and the bolt positioning hole in order, and the spacer is pressed by a lock nut screwed on the tip of the anchor bolt (7), thereby locking the finely tuned anchor bolt (7).
  3. 3. The group bolt mounting device according to claim 1, wherein the adjustable leg (2) comprises two first threaded rods (201) connected to the main frame (1) and the backing plate (3), respectively, opposite ends of the two first threaded rods (201) are screwed into the same first threaded sleeve (202), and the lengths of the two first threaded rods (201) extending into the first threaded sleeve (202) can be synchronously adjusted by rotating the first threaded sleeve (202), so that the total height of the adjustable leg (2) is changed to adjust the levelness and elevation of the main frame (1).
  4. 4. The group bolt mounting device according to claim 1, wherein the adjustable connection handle (6) comprises two second threaded rods (601) respectively connected to the main frame (1) and the positioning disc (5), opposite ends of the two second threaded rods (601) are connected to the same second threaded sleeve (602) in a threaded manner, and the lengths of the two second threaded rods (601) extending into the second threaded sleeve (602) can be synchronously adjusted by rotating the second threaded sleeve (602), so that the effective length of the adjustable connection handle (6) is changed, and the position of the positioning disc (5) in a plane is adjusted.
  5. 5. The group bolt mounting device according to claim 4, wherein the second threaded rod (601) is detachably connected to the main frame (1) and the positioning plate (5).
  6. 6. The group bolt mounting device according to claim 1, wherein the positioning plate (5) is further provided with a measuring reference point for precise measurement.
  7. 7. A ring-shaped group bolt mounting method using the ring-shaped group bolt mounting device according to any one of claims 1 to 6, characterized by comprising the steps of: s1, measuring, positioning and paying off are carried out on a concrete cushion layer (4), and an annular group bolt mounting device is fixed; s2, penetrating the upper ends of the foundation bolt (7) groups and preliminarily fixing the upper ends in bolt positioning holes of the positioning disc (5); s3, accurately adjusting levelness and elevation of the main frame (1) and the positioning disc (5) by adjusting the adjustable supporting legs (2); s4, finely adjusting the plane positions of the positioning disc (5) and the foundation bolt (7) group by adjusting the adjustable connecting handle (6); S5, independently fine-tuning and locking the plane position, the top elevation and the verticality of the single foundation bolt (7); And S6, carrying out integral accurate calibration on the annular group bolt mounting device and the foundation bolt (7) group through a measuring datum point on the positioning disc (5) by using a total station or a GPS, and carrying out concrete pouring after the calibration is completed.
  8. 8. The group bolt installation method according to claim 7, wherein the fixing of the ring-shaped group bolt installation device in step S1 specifically comprises anchoring the backing plate (3) at the bottom of the adjustable leg (2) to the concrete pad (4) by means of expansion bolts.
  9. 9. The method according to claim 7, wherein the individual anchor bolts (7) are fine-tuned in step S5, in particular by means of the hole diameter D of the bolt locating holes 1 Is larger than the rod diameter D of the foundation bolt (7) 2 The formed movable gap is used for adjusting the plane position and the verticality of the movable gap and locking by screwing the locking nut to compress the gasket.

Description

Group bolt installation device and method Technical Field The invention relates to the technical field of equipment installation, in particular to a group bolt installation device and method. Background In industrial building construction, a foundation embedded foundation bolt mode is often adopted for installation of large-scale equipment, along with the expansion of equipment scale, the embedded accuracy requirements on foundation bolts, especially group foundation bolts, are increasingly improved, and the embedded quality is directly related to the final installation quality and the long-term running stability of the equipment. The foundation construction of the dust removing facility is taken as an example, along with the increasing strictness of environmental protection standards, the modern industry puts forward extremely high requirements on the treatment efficiency and the structural reliability of the dust removing facility, a dust removing chimney is connected with an anchor bolt group in a foundation through a bottom foot plate to reliably transfer huge wind load, dead weight and the like borne by an upper structure to the foundation, and therefore the pre-buried precision of the anchor bolt group is a primary premise for ensuring the safe installation and long-term stable operation of the dust removing facility. At present, in such construction, the positioning and control of the foundation bolts generally adopts a traditional method, specifically, after the foundation bolts are measured and paid off on site according to a design drawing, the foundation bolts are primarily fixed in a mode of matching a 'reinforcing steel bar split heads' with 'simple fixing frames', constructors need to rely on personal experience, and simple tools such as steel rules, ropes and the like are used for correcting the positions of the foundation bolt groups. The method has the obvious defects that the fixation is very unstable, the relative position and the distance between the foundation bolt groups are difficult to ensure, the foundation bolts are extremely easy to displace and deform due to the huge impact force generated by the falling of concrete in the concrete pouring process, the final forming precision is poor, the requirement of high-precision equipment installation cannot be met, and hidden hazards of subsequent equipment installation and long-term safe operation are avoided. Therefore, there is a strong need for a group bolt mounting technique and apparatus that can achieve precise positioning and secure fixation. Disclosure of Invention Aiming at the defects of the prior art, the invention aims to provide a group bolt installation device and a method capable of realizing accurate positioning and firm fixation. The technical scheme adopted for solving the technical problems is as follows: A group bolt installation device comprises a main frame, wherein a plurality of adjustable supporting legs are arranged at the bottom of the main frame, a base plate is arranged at the lower end of each adjustable supporting leg and is fixed on a concrete cushion layer through expansion bolts, a positioning plate is arranged in the main frame, a plurality of bolt positioning holes are formed in the positioning plate, the positions of the bolt positioning holes are set according to preset foundation bolt installation points, the positioning plate is connected with the main frame through an adjustable connecting handle, and the position of the positioning plate can be adjusted through adjusting the length of the adjustable connecting handle. Preferably, the invention further adopts the technical scheme that: Preferably, the relation between the diameter D 1 of the bolt positioning hole and the diameter D 2 of the anchor bolt to be installed is D 2+2mm≤D1≤D2 +10mm, the anchor bolt sequentially penetrates through the gasket and the bolt positioning hole, and the gasket is compressed through a locking nut screwed on the top end of the anchor bolt, so that the finely-adjusted anchor bolt is locked. Preferably, the adjustable support leg comprises two first threaded rods which are respectively connected to the main frame and the backing plate, one ends of the two first threaded rods are in threaded connection with the same first threaded sleeve, and the lengths of the two first threaded rods extending into the first threaded sleeve can be synchronously adjusted by rotating the first threaded sleeve, so that the total height of the adjustable support leg is changed, and the levelness and elevation of the main frame are adjusted. Preferably, the adjustable connecting handle comprises two second threaded rods which are respectively connected to the main frame and the positioning disc, one ends of the two second threaded rods, which are opposite, are in threaded connection with the same second threaded sleeve, and the lengths of the two second threaded rods extending into the second threaded sleeve can be synchronously adjusted b