CN110480107B

CN110480107B - Foundation bolt repairing device

Info

Publication number: CN110480107B
Application number: CN201910749240.4A
Authority: CN
Inventors: 王良玉; 陈海生; 周汉生; 闫福强
Original assignee: China First Metallurgical Group Co Ltd
Current assignee: China First Metallurgical Group Co Ltd
Priority date: 2019-08-14
Filing date: 2019-08-14
Publication date: 2020-11-27
Anticipated expiration: 2039-08-14
Also published as: CN110480107A

Abstract

The invention provides a foundation bolt repairing device, which comprises: a threading die; the die holder is sleeved outside the die and connected with the die, and a plurality of trunnions are arranged on the die holder; the bottom of the rotary sleeve arranged above the die stock is provided with a plurality of clamping grooves which are arranged corresponding to the trunnions one to one and used for being clamped on the corresponding trunnions; and the rotary driving mechanism is arranged above the rotary sleeve and is in transmission connection with the rotary sleeve to drive the rotary sleeve to rotate so as to drive the die holder and the dies to synchronously rotate along with the rotary sleeve, so that the external threads on the foundation bolt are repaired. The position of the rotary driving mechanism is moved upwards to avoid interference between the dies and surrounding foundation bolts when the rotary driving mechanism drives the rotary sleeve, the die holder and the dies to rotate, the die holder is sleeved outside the dies, the rotary sleeve is connected with the die holder in a clamping mode, and the dies are not structurally changed.

Description

Foundation bolt repairing device

Technical Field

The invention relates to the technical field of equipment installation, in particular to a foundation bolt repairing device.

Background

Any equipment installation is associated with the foundation and the equipment must be secured by anchor bolts. Because the construction site environment is complicated, a plurality of foundation bolt threads are damaged to different degrees. For the restoration of these damaged threads, a common method is to restore the threads with files, saw blades, and dies.

The former two methods have certain effect on slightly damaged threads, but for threads with heavier damage, threading is required to be performed again by adopting the threading die, and when the space between the foundation bolts is too narrow, the threading die rack cannot rotate. Therefore, the threading die is usually welded on a steel pipe directly for use, the threading die after high temperature is easy to anneal, and a part of the rotation torque is decomposed, so that great labor is consumed during operation, and the threading efficiency is low.

Disclosure of Invention

In view of the above, the invention provides a foundation bolt repairing device, and aims to solve the problem that the threading efficiency is low due to the fact that operation is laborious when the existing foundation bolt is directly welded on a steel pipe through a screw die when the distance between the existing foundation bolts is too narrow.

The invention provides a foundation bolt repairing device, which comprises: a threading die; the die holder is sleeved outside the die and connected with the die, and a plurality of trunnions are arranged on the die holder; the bottom of the rotary sleeve arranged above the die stock is provided with a plurality of clamping grooves which are arranged corresponding to the trunnions one to one and used for being clamped on the corresponding trunnions; and the rotary driving mechanism is arranged above the rotary sleeve and is in transmission connection with the rotary sleeve to drive the rotary sleeve to rotate so as to drive the die holder and the dies to synchronously rotate along with the rotary sleeve, so that the external threads on the foundation bolt are repaired.

Further, in the foundation bolt repairing apparatus, the rotation driving mechanism includes: the nut is arranged at the top of the rotating sleeve; the wrench is sleeved outside the nut and used for being clamped on the outer wall of the nut to rotate the nut through external force to drive the rotating sleeve to rotate.

Further, the foundation bolt repairing device further comprises: and the supporting structure is arranged above the rotary driving mechanism, is connected with the rotary driving mechanism and is used for holding by hand so as to enable the threading die to rotate relative to the supporting structure.

Further, the foundation bolt repairing device comprises: the threaded column of the handle bolt comprises a straight rod section arranged below the head and a threaded section arranged below the straight rod section, and the threaded section is in threaded connection with the nut of the rotary driving mechanism; the handle is located between the head of the handle bolt and the nut, sleeved on the outer handle of the straight rod section, rotatably connected with the straight rod section, and used for being held by hands to ensure the stability of threading of the threading die.

Further, the foundation bolt repairing device further comprises: the anti-deviation middle pipe is sleeved outside the die stock and is connected with the die stock so that dies on the die stock are coaxial with the foundation bolts.

Furthermore, according to the foundation bolt repairing device, a necking is formed in the bottom of the anti-deviation middle pipe and used for being clamped on the outer wall of the foundation bolt.

Further, according to the foundation bolt repairing device, the bottom of the anti-deviation middle pipe is provided with a cutting chip discharge port for discharging chips generated by threading of the dies.

Further, according to the foundation bolt repairing device, the deviation-prevention middle pipe and the die stock are in threaded connection.

Further, above-mentioned rag bolt prosthetic devices, the die with follow through a plurality of between the die holder the screw that die holder circumference set up is connected, and, be provided with the hole of stepping down on the rotating sleeve pipe, be used for right the screw steps down.

Further, according to the foundation bolt repairing device, the number of the trunnions is two, and the two trunnions are arranged along the radial direction of the die stock.

According to the foundation bolt repairing device provided by the invention, the die stock is sleeved outside the die so as to be convenient for rotationally driving the die, and the die stock is provided with the plurality of trunnions so as to realize the rotational connection between the die stock and the rotary sleeve; the bottom of the rotary sleeve arranged above the die stock is provided with a plurality of clamping grooves which are arranged in one-to-one correspondence with the trunnions and are used for being clamped on the corresponding trunnions so as to ensure that the die stock and the rotary sleeve synchronously rotate; through the rotary driving mechanism arranged above the rotary sleeve, the rotary driving mechanism is in transmission connection with the rotary sleeve and used for driving the rotary sleeve to rotate so as to drive the die holder and the dies to synchronously rotate along with the rotary sleeve, and therefore the external threads on the foundation bolt can be repaired. Compared with the prior art, this application shifts up rotary driving mechanism's position, especially, set up in rotary sleeve's top, in order to avoid rotary driving mechanism drive rotary sleeve, die and the rotatory interference between rag bolt on every side of die frame and the die, and simultaneously, the outside at the die is established to die frame cover, and establish through the card between rotary sleeve and the die frame and be connected, do not carry out structural change to the die, compare among the prior art welding steel pipe, the condition of driving power decomposition has been avoided, even it is rotatory that the external force that makes drive to rotary driving mechanism is whole to be used for driving the die, that is to say this application compares the welding steel pipe and leads to the rotation moment to decompose, can save a large amount of labours, improve the efficiency of mantle fiber.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

FIG. 1 is an exploded view of an anchor bolt repairing apparatus according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an anchor bolt repairing apparatus according to an embodiment of the present invention.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

Referring to fig. 1, a schematic structural diagram of an anchor bolt repairing apparatus according to an embodiment of the present invention is shown. As shown in the figure, the device comprises a die 1, a die holder 2, a rotary sleeve 3, a rotary driving mechanism 4, an anti-deviation middle pipe 5 and a supporting structure 6; wherein,

the die stock 2 is sleeved outside the die 1 and is connected with the die 1 so as to facilitate the rotary driving of the die 1, and further the die 1 is rotated so as to repair damaged threads of the foundation bolt 7. Specifically, the die 1 is used as a thread processing tool for correcting external threads and used for repairing damaged threads of the foundation bolt, namely, threading the foundation bolt. Die stock 2 is one end open-ended inside hollow structure to the cover is established in the outside of die 1, and, is connected between die stock 2 and the die 1, so that die stock 2 can be fixed as an organic whole with die 1 when the mantle fiber, and then drives die 1 through die stock 2 and rotates, thereby realizes the restoration of damage screw thread on the rag bolt 7. Preferably, the die holder 2 is detachably connected with the die 1, for example, the die 1 and the die holder 2 can be connected through a screw 8, so as to facilitate the detachment and installation between the die 1 and the die holder 2, and the screw 8 can be inserted into the die holder 2 to press the die 1, so that the top die 1 abuts against the inner wall of the die holder 2; further preferably, the screw 8 may be plural and arranged along the circumference of the die stock 2 so as to ensure the stability of the connection between the die 1 and the die stock 2. Wherein, a plurality of trunnions 21 are arranged on the die stock 2 so as to realize the rotation of the die stock 2. Preferably, the trunnion 21 is a plurality of and along the circumferential interval evenly distributed of die stock 2 to ensure pivoted stability between swivel sleeve 3 and die stock 2, can't drive die stock 2 along with its synchronous rotation when avoiding swivel sleeve 3 to rotate. The trunnion 21 may be a cylindrical structure or a tubular structure extending on the outer wall of the die set 2, or may be other structures, which is not limited in this embodiment.

The rotary sleeve 3 is arranged above the die stock 2, and a plurality of clamping grooves 31 which are arranged in one-to-one correspondence with the trunnions 21 are arranged at the bottom of the rotary sleeve 3 and used for being clamped on the corresponding trunnions 21. Specifically, the rotary sleeve 3 is a hollow tubular structure with an open end (the lower end shown in fig. 1) on the inner wall, and the bottom of the rotary sleeve is sleeved outside the die stock 2 and clamped on the corresponding trunnion 21 through the clamping groove 31, so that the trunnion 21 is driven to synchronously rotate along with the rotation of the rotary sleeve 3, and further the die stock 2 and the dies 1 fixed on the die stock 2 are driven to synchronously rotate along with the rotation, thereby realizing the threading of the anchor bolt 7. Wherein, the slot 31 corresponds to the trunnion 21, and when the trunnion 21 is a cylinder or a tubular structure extending on the outer wall of the die stock 2, the slot 31 is a U-shaped notch structure arranged at the bottom of the rotary sleeve 3 and the width thereof is equal to or slightly larger than the outer diameter of the trunnion 21. In order to avoid interference between the rotating sleeve 3 and the screw 8, preferably, the rotating sleeve 3 is provided with a yielding hole 32 for yielding the screw 8, wherein, for the convenience of installation and use of the rotating sleeve 3, the yielding hole 32 is arranged at the bottom of the rotating sleeve 3, and may be of a U-shaped notch structure and has a width equal to or slightly larger than the outer diameter of the screw 8. The engagement between the locking slot 31 of the rotary sleeve 3 and the trunnion 21 of the die set 2 can be adjusted in different directions of the rotary sleeve 3 to ensure the stability of the rotation thereof.

The rotary driving mechanism 4 is arranged on the rotary sleeve 3, and the rotary driving mechanism 4 is in transmission connection with the rotary sleeve 3 and used for driving the rotary sleeve 3 to rotate so as to drive the die holder 2 and the die 1 to synchronously rotate along with the rotary sleeve 3 and repair the external threads on the foundation bolt 7. Specifically, the rotary driving mechanism 4 is driven to rotate by external force, so that the rotary sleeve 3 synchronously rotates along with the rotary driving mechanism 4 under the action of the rotary driving mechanism 4, and further the dies 1 fixed on the die holder 2 and the die holder 2 synchronously rotate along with the rotary driving mechanism, and the threading of the foundation bolt 7 is realized.

The anti-deviation middle tube 5 is sleeved outside the die set frame 2, and the anti-deviation middle tube 5 is connected with the die set frame 2, so that the dies 1 on the die set frame 2 and the foundation bolts 7 are coaxially arranged, centering deviation between the dies 1 and the foundation bolts 7 is avoided, and accuracy and stability of threading of the dies 1 are further ensured. Specifically, the anti-deviation middle tube 5 may be an internal hollow tubular structure with an open end (the upper end as shown in fig. 1), and the lower end of the anti-deviation middle tube 5 is also an open end so as to be clamped outside the anchor bolt 7, thereby realizing the coaxiality between the die 1 and the anchor bolt 7; preferably, in order to ensure the coaxial arrangement between the die 1 and the anchor bolt 7, a reducing 52 is arranged at the bottom of the anti-deviation middle pipe 5 and is clamped on the outer wall of the anchor bolt 7; the throat 52 may be concentrically constricted with the anti-deviation middle tube 5, i.e. the throat 52 is coaxial with the anti-deviation middle tube 5, to further ensure the coaxial arrangement between the dies 1 and the anchor bolts 7. In order to ensure the stability of the threading of the device, the bottom of the deviation-proof middle tube 5 is preferably provided with a chip discharge opening 51 for discharging chips generated by threading of the threading die 1 so as to avoid accumulation of the chips in the deviation-proof middle tube 5, wherein the chip discharge opening 51 can be arranged at the bottom of the reducing opening 52. Wherein, the deviation-proof middle tube 5 is sleeved outside the die stock 2, so that the die stock 2 is partially arranged in the deviation-proof middle tube 5. In order to facilitate the detachment and installation between the anti-deviation middle pipe 5 and the die stock 2, preferably, the anti-deviation middle pipe 5 is in threaded connection with the die stock 2, that is, an inner thread is arranged on the inner wall of the anti-deviation middle pipe 5, and an outer thread in threaded connection with the inner thread on the anti-deviation middle pipe 5 is arranged on the outer wall of the bottom of the die stock 2. Wherein, prevent that inclined to one side well pipe 5 and die holder 2 threaded connection enclose to establish and be inside hollow casing to enclose die 1 in the casing.

Bearing structure 6 sets up the top at rotary driving mechanism 4, and, bearing structure 6 is connected with rotary driving mechanism 4, be used for handheld so that threading die 1 rotates for bearing structure 6, can hold up bearing structure 6 on one hand, perhaps bearing structure 6 fixes on other fixed spare parts, another hand drive rotary driving mechanism 4 rotates for bearing structure 6, rotate with driving swivel casing 3, and then drive threading die frame 2 and threading die 1 along with swivel casing 3 synchronous revolution, thereby realize the restoration to the external screw thread on rag bolt 7.

With continued reference to fig. 1 and 2, the rotary drive mechanism 4 includes: a nut 41 and a wrench 42; wherein,

the nut 41 is disposed on top of the rotary sleeve 3. In particular, the nut 41 may be a hexagonal nut fixed on the top wall of the rotary sleeve 3. The top wall of the rotary sleeve 3 may also be provided with a through hole to avoid interference with other components, especially the handle bolt 61 of the support structure 6.

The wrench 42 is sleeved outside the nut 41 and is clamped on the outer wall of the nut 41 to rotate the nut 41 by an external force to drive the rotary sleeve 3 to rotate. Specifically, the wrench 42 corresponds to the nut 41, and the wrench 42 rotates the nut 41 by using the principle of leverage, and the nut 41 can be rotated by applying an external force to one end of the handle 421 of the wrench 42. When the threading tool is used, external force is applied to the handle 421 along the thread rotating direction of threading of the die 1, so that the nut 41 can be screwed, the rotating sleeve 3 rotates along with the nut 41, and threading is further realized. The wrench 42 can also be sleeved outside the handle 62 of the supporting structure 6 in the non-use state to avoid the nut 41 being screwed by misoperation.

With continued reference to fig. 1 and 2, the support structure 6 includes: a handle bolt 61 and a handle 62; wherein,

the threaded column 611 of the handle bolt 61 includes a straight bar section 6111 disposed below the head 612 of the handle bolt 61 and a threaded section 6112 disposed below the straight bar section 6111, and the threaded section 6112 is threadedly connected to the nut 41 of the rotary drive mechanism 4. Specifically, the handle bolt 61 includes a threaded post 611 and a head 612 of unitary construction, the head 611 being configured to press against a top end of the handle 62 to capture the handle 62 between the head 612 and the nut 41, the threaded post 611 being disposed on a bottom wall (relative to the position shown in fig. 1) of the head 612 and being disposed coaxially with the head 612. The straight rod section 6111 and the threaded section 6112 of the threaded column 611 are of an integral structure, the threaded section 6112 is arranged on one side of the head 612 and connected with the head 612 through the straight rod section 6111, and of course, the outer wall of the straight rod section 6111 can also be provided with an external thread, which is not limited in this embodiment. The threaded section 6112 is in threaded connection with the nut 41 to fix the handle bolt 61 and further limit the handle 62.

The handle 62 is located between the head 612 of the handle bolt 61 and the nut 41 and is sleeved outside the straight rod section 6111, and the handle 62 is rotatably connected with the straight rod section 6111 for handheld stability in order to ensure threading of the die 1, so that the handle 62 can be held by one hand, the wrench 42 is driven by the other hand to rotate, so that the nut 41 and the rotary sleeve 3 are driven to rotate synchronously, the die holder 2 is driven, the die 1 is driven, and the middle pipe 5 is prevented from rotating synchronously along with the die, and therefore the external thread on the foundation bolt 7 is repaired through the die 1. In this embodiment, handle bolt 61, handle 62, nut 41, rotary sleeve 3, die holder 2, die 1, prevent inclined to one side all can coaxial setting to well pipe 5 to avoid the decomposition of spare part to external force, and then improve the utilization ratio of external force, reduce staff's labour.

In this embodiment, the handle 62 is sleeved on the handle bolt 61 and can rotate freely, so that friction between the handle 62 and the palm is not caused when the wrench 42 drives the rotary sleeve 3 to rotate, and the handle 62 is arranged to ensure the stability and labor saving of the device in the using process.

In summary, the foundation bolt repairing device provided in this embodiment is configured to conveniently rotate the die 1 by sleeving the die holder 2 on the outer side of the die 1, and the die holder 2 is provided with a plurality of trunnions 21 to rotatably connect the die holder 2 and the rotary sleeve 3; through the rotary sleeve 3 arranged above the die set 2, the bottom of the rotary sleeve is provided with a plurality of clamping grooves 31 which are arranged corresponding to the trunnions 21 one by one and are used for being clamped on the corresponding trunnions 21 so as to enable the die set 2 and the rotary sleeve 3 to synchronously rotate, the combination form between the clamping grooves 31 and the trunnions 21 can adjust the rotary sleeve 3 in different directions, the die set 2 is ensured to be always aligned with the foundation bolts 7, the stress action surface of the die 1 is moved upwards to the upper part of the rotary sleeve 3, and the interference of the operation of a repair part below and the foundation bolts beside is avoided; through the rotary driving mechanism 4 that sets up in swivel sleeve 3 top, it is connected with swivel sleeve 3 transmission for drive swivel sleeve 3 rotates, in order to drive die stock 2 and die 1 along with swivel sleeve 3 synchronous revolution, in order to realize the restoration to the external screw thread on rag bolt 7. Compared with the prior art, this application shifts up rotary driving mechanism 4's position, especially set up in rotary sleeve 3's top, in order to avoid rotary driving mechanism 4 drive rotary sleeve 3, interference between die 1 and the rag bolt on every side when die frame 2 and die 1 rotate, and simultaneously, die frame 2 cover is established in the outside of die 1, and establish through the card between rotary sleeve 3 and the die frame 2 and be connected, do not carry out structural change to die 1, compare among the prior art welded steel pipe, the condition of drive power decomposition has been avoided, even if it is all used for driving die 1 rotation to rotary driving mechanism 4's external force, that is to say this application compares the welded steel pipe and leads to the rotation moment to decompose, can save a large amount of labours, improve the efficiency of mantle fiber.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A rag bolt prosthetic devices, characterized by, includes:

a screw die (1);

the die rack (2) is sleeved outside the die (1) and connected with the die (1), and a plurality of trunnions (21) are arranged on the die rack;

the bottom of the rotary sleeve (3) arranged above the die stock (2) is provided with a plurality of clamping grooves (31) which are arranged corresponding to the trunnions (21) one by one and are used for being clamped on the corresponding trunnions (21);

the rotary driving mechanism (4) is arranged above the rotary sleeve (3) and is in transmission connection with the rotary sleeve (3) and used for driving the rotary sleeve (3) to rotate so as to drive the die block (2) and the dies (1) to synchronously rotate along with the rotary sleeve (3) and repair the external threads on the foundation bolt (7);

the anti-deviation middle pipe (5) is sleeved outside the die stock (2) and is in threaded connection with the die stock (2) so that dies on the die stock (2) and the foundation bolts (7) are coaxially arranged; a cutting chip discharge port (51) is formed in the bottom of the anti-deviation middle pipe (5) and used for discharging chips generated by threading of the die (1);

the supporting structure (6) is arranged above the rotary driving mechanism (4) and is connected with the rotary driving mechanism (4) for holding by hand to enable the screw die (1) to rotate relative to the supporting structure (6);

the rotary drive mechanism (4) comprises:

a nut (41) provided on the top wall of the rotary sleeve (3);

the wrench (42) is sleeved outside the nut (41) and is clamped on the outer wall of the nut (41) to rotate the nut (41) through external force to drive the rotary sleeve (3) to rotate;

the support structure (6) comprises:

the handle bolt (61) is provided with a threaded column (611) which comprises a straight rod section (6111) arranged below the head (612) of the handle bolt (61) and a threaded section (6112) arranged below the straight rod section (6111), and the threaded section (6112) is in threaded connection with a nut (41) of the rotary driving mechanism (4);

the handle (62) is positioned between the head (612) of the handle bolt (61) and the nut (41) and sleeved outside the straight rod section (6111), is rotatably connected with the straight rod section (6111), and is used for holding by hand to ensure the stability of threading of the screw die (1).

2. The anchor bolt repairing apparatus according to claim 1,

and a necking (52) is arranged at the bottom of the deviation prevention middle pipe (5) and used for being clamped on the outer wall of the foundation bolt (7).

3. The anchor bolt repairing apparatus according to claim 1,

threading die (1) with follow through a plurality of between threading die frame (2) screw (8) that threading die frame (2) circumference set up are connected, and, be provided with hole of stepping down (32) on rotatory sleeve pipe (3), be used for right screw (8) step down.

4. The anchor bolt repairing apparatus according to claim 1,

the number of the trunnions (21) is two, and the trunnions are arranged along the radial direction of the die stock (2).