CN218052285U

CN218052285U - Self-centering device for rectangular shaft hole

Info

Publication number: CN218052285U
Application number: CN202222226455.8U
Authority: CN
Inventors: 张立学; 马浩; 仵叔强
Original assignee: China Railway Baoji Bridge Group Co Ltd
Current assignee: China Railway Baoji Bridge Group Co Ltd
Priority date: 2022-08-23
Filing date: 2022-08-23
Publication date: 2022-12-16
Anticipated expiration: 2032-08-23

Abstract

The utility model discloses a rectangle shaft hole is from centring means, including the steel construction track, rectangle shaft hole has been seted up at steel construction track's both ends, and the inner chamber of rectangle shaft hole is provided with from centering mechanism, and from centering mechanism including target base, tapering locating piece, terminal surface locating piece and nut, the tapering locating piece and terminal surface locating piece have been cup jointed respectively to the both ends on target base surface, and one end threaded connection that target base is close to the tapering locating piece has the nut, and the big packing ring has been cup jointed to one side of tapering locating piece and the surface that is located target base, the utility model relates to a rectangle shaft hole is from centering means, based on tapering centering principle, has solved large-scale steel construction track Liang Juxing shaft hole centering detection and measurement, does not have the problem of specialized tool, according to the actual operation operating mode, design exempts from lifting device, can the small and exquisite simple from centering means of manual operation, easy operation has improved the efficiency; the positioning precision is high, and the detection and measurement of the workpiece are ensured.

Description

Self-centering device for rectangular shaft hole

Technical Field

The utility model relates to a rectangle shaft hole is from centring means technical field, specifically is a rectangle shaft hole is from centring means.

Background

The precision detection of the large steel structure track beam in urban rail transit is a key point in manufacturing, the whole detection of the large steel structure track beam still belongs to a blank in China, reference methods, tools and equipment are unavailable, and a detection scheme and an auxiliary tool need to be designed independently.

Because steel construction track roof beam structure size is very big, and the round pin shaft hole is the rectangle, when detecting, adopts the formula of running through rectangle location axle, needs supplementary hoisting equipment, and installation, adjustment, dismantlement all can be very consuming time to there is the operation potential safety hazard.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rectangle shaft hole is from centring means to solve and to provide in the above-mentioned background art because steel construction track roof beam structure size is very big, and the round pin shaft hole is the rectangle, when detecting, adopts run-through rectangle location axle, needs supplementary hoisting equipment, and installation, adjustment, dismantlement all can be very consuming time, and exist the problem of operation potential safety hazard.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a rectangle shaft hole is from centring means, includes the steel construction track, the rectangle shaft hole has been seted up at the orbital both ends of steel construction, the inner chamber in rectangle shaft hole is provided with from centring means, from centring means including mark target base, tapering locating piece, terminal surface locating piece and nut, tapering locating piece and terminal surface locating piece have been cup jointed respectively to the both ends on mark target base surface, mark one end threaded connection that the target base is close to the tapering locating piece has the nut, big packing ring has been cup jointed on one side of tapering locating piece and the surface that is located mark target base.

By using the rectangular shaft hole self-centering device in the technical scheme, the problem that a large steel structure rail Liang Juxing shaft hole centering detection and measurement is free of special tools is solved based on the taper centering principle, hoisting-free equipment is designed according to actual operation conditions, the device can be manually operated, is small and simple, is simple to operate, and improves the efficacy; the positioning precision is high, and the detection and measurement of the workpiece are ensured.

Preferably, the end face positioning block is connected with a large-end centering sleeve in an interference fit manner at the sleeve joint of the target base.

Preferably, the connection part of the taper positioning block and the target base is connected with a small-end centering sleeve in an interference fit manner.

Preferably, a spring washer is sleeved on the surface of the target base between the nut and the large washer.

Preferably, the taper positioning block and the end face positioning block are both of a cross structure.

Preferably, the opposite sides of the taper positioning block and the end face positioning block are both provided with grooves.

Preferably, the taper positioning block and the end face positioning block are respectively positioned at two sides of the rectangular shaft hole.

Preferably, the target base comprises an inserting column and a plug, and one end of the inserting column is fixedly connected with the plug.

Preferably, the inserting column comprises three connecting rods, and the three connecting rods are connected in sequence.

Preferably, the diameters of the three connecting rods decrease from left to right in sequence.

Compared with the prior art, the beneficial effects of the utility model are that:

firstly, a taper positioning block is positioned in a rectangular shaft hole, force is properly applied (pushed or copper bar is flicked) to enable the taper positioning block to be closely attached to the four-surface hole diameter of the rectangular shaft hole, then an end face positioning block is stably and closely attached to the other end face of the rectangular shaft hole, then the end face positioning block penetrates through a target base, a large washer, an elastic pad and a nut are sequentially installed, and then the nut is properly screwed, so that the problem that a special tool is not needed in the centering detection and measurement of the large steel structure rail Liang Juxing shaft hole is solved based on the taper centering principle, a hoisting-free device is designed according to the actual operation condition, a small and simple self-centering device which can be manually operated is simple to operate, and the efficiency is improved; the positioning precision is high, and the detection and measurement of the workpiece are ensured.

Drawings

FIG. 1 is a connection diagram of the present invention and a local part of a steel structure rail;

FIG. 2 is an exploded view of the present invention;

FIG. 3 is a schematic structural view of the present invention;

fig. 4 is a cross-sectional view of the present invention.

In the figure: 1. a steel structure track; 2. a rectangular shaft hole; 3. a self-centering mechanism; 4. a target base; 5. a taper positioning block; 6. an end face positioning block; 7. a large end centering sleeve; 8. a small end centering sleeve; 9. a large washer; 10. a spring pad; 11. a nut; 12. inserting a column; 13. a plug; 14. a connecting rod; 15. and (4) a groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Embodiment 1, please refer to and draw together 1-4, the utility model provides a rectangle shaft hole is from centring means, including steel structure track 1, rectangle shaft hole 2 has been seted up at steel structure track 1's both ends, the inner chamber in rectangle shaft hole 2 is provided with from centring means 3, from centring means 3 including mark target base 4, tapering locating piece 5, terminal surface locating piece 6 and nut 11, taper locating piece 5 and terminal surface locating piece 6 have been cup jointed respectively to the both ends on mark target base 4 surface, one end threaded connection that mark target base 4 is close to tapering locating piece 5 has nut 11, one side of tapering locating piece 5 just is located the surface of mark target base 4 and has cup jointed big packing ring 9.

During the use, with tapering locating piece 5 location to rectangular shaft hole 2 in, proper application of force (push away or the bar copper flicks) makes it closely paste with the four sides aperture in rectangular shaft hole 2, notice not too tight, if the tension lock is dead, should use outside bar copper reverse flick, make it withdraw from, then steadily closely paste another terminal surface in rectangular shaft hole 2 with terminal surface locating piece 6, connect gradually tip centering sleeve 8 and main aspects centering sleeve 7 at the inner chamber interference fit of tapering locating piece 5 and terminal surface locating piece 6 immediately, penetrate mark target base 4 again, and install big packing ring 9 in proper order, bullet pad 10 and nut 11, it can to appropriately screw nut 11 again.

The end face positioning block 6 is connected with a large end centering sleeve 7 in interference fit with the sleeve joint of the target base 4.

During the use, big end centering sleeve 7 is used for the buffering of the cup joint department of terminal surface locating piece 6 and mark target base 4.

The joint of the taper positioning block 5 and the target base 4 is connected with a small end centering sleeve 8 in an interference fit manner.

When the taper positioning block is used, the small end centering sleeve 8 is used for buffering the connection part of the taper positioning block 5 and the target base 4.

And an elastic cushion 10 is sleeved on the surface of the target base 4 between the nut 11 and the large washer 9.

When the spring washer is used, the spring washer 10 is equivalent to a spring with one coil, and is pressed by the nut 11 to prevent the nut 11 from loosening.

The taper positioning block 5 and the end face positioning block 6 are both in a cross structure.

When in use, the device is used for closely attaching the apertures on four sides of the rectangular shaft hole 2.

The taper positioning block 5 and the end face positioning block 6 are respectively positioned at two sides of the rectangular shaft hole 2.

Target base 4 is including inserting post 12 and plug 13, the one end fixedly connected with plug 13 of inserting post 12, and insert post 12 and include three connecting rod 14, and three connecting rod 14 connects gradually, and the diameter of three connecting rod 14 reduces from left to right in proper order.

When in use, the target base 4 is penetrated, the large washer 9, the elastic pad 10 and the nut 11 are sequentially installed, and then the nut 11 is appropriately screwed.

When the device is used, firstly, the taper positioning block 5 is positioned in the rectangular shaft hole 2, force is applied properly (pushed or tapped by a copper rod) to enable the taper positioning block to be tightly attached to the four-side hole diameter of the rectangular shaft hole 2, if the taper positioning block is not tightened, if the taper positioning block is tightened, the external copper rod is tapped reversely to enable the taper positioning block to be withdrawn, then the end face positioning block 6 is stably and tightly attached to the other end face of the rectangular shaft hole 2, then the small end centering sleeve 8 and the large end centering sleeve 7 are sequentially connected to the inner cavities of the taper positioning block 5 and the end face positioning block 6 in an interference fit mode, then the target base 4 is penetrated, the large washer 9, the elastic washer 10 and the nut 11 are sequentially installed, and then the nut 11 is screwed properly.

Embodiment 2, please refer to fig. 1-4, the utility model provides a rectangle shaft hole is from centring means, including steel construction track 1, rectangle shaft hole 2 has been seted up at steel construction track 1's both ends, the inner chamber of rectangle shaft hole 2 is provided with from centring means 3, from centring means 3 including mark target base 4, tapering locating piece 5, terminal surface locating piece 6 and nut 11, tapering locating piece 5 and terminal surface locating piece 6 have been cup jointed respectively to the both ends on mark target base 4 surface, mark target base 4 is close to one end threaded connection of tapering locating piece 5 and has nut 11, big packing ring 9 has been cup jointed on the surface that one side of tapering locating piece 5 just is located mark target base 4.

The taper positioning block 5 and the end face positioning block 6 are both of a cross structure.

The opposite sides of the taper positioning block 5 and the end face positioning block 6 are both provided with grooves 15.

When in use, the target base 4 is penetrated, the large washer 9, the elastic pad 10 and the nut 11 are sequentially arranged, and then the nut 11 is properly screwed, thus the target is obtained

During the specific use, recess 15 has all been seted up to the opposite side of tapering locating piece 5 and terminal surface locating piece 6, can be so that tapering locating piece 5 and terminal surface locating piece 6 and the more laminating of the both ends side in rectangle shaft hole 2, guarantee the stability of tapering locating piece 5 and terminal surface locating piece 6 connection.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a rectangle shaft hole is from centring means, includes steel construction track (1), its characterized in that: rectangle shaft hole (2) have been seted up at the both ends of steel construction track (1), the inner chamber of rectangle shaft hole (2) is provided with from centering mechanism (3), from centering mechanism (3) including mark target base (4), tapering locating piece (5), terminal surface locating piece (6) and nut (11), tapering locating piece (5) and terminal surface locating piece (6) have been cup jointed respectively to the both ends on mark target base (4) surface, the one end threaded connection that mark target base (4) are close to tapering locating piece (5) has nut (11), big packing ring (9) have been cup jointed on the surface that one side of tapering locating piece (5) just is located mark target base (4).

2. The rectangular shaft hole self-centering device of claim 1, wherein: the end face positioning block (6) is connected with a large-end centering sleeve (7) in an interference fit manner at the sleeve joint of the target base (4).

3. The rectangular axle bore self-centering device of claim 1, wherein: and the joint of the taper positioning block (5) and the target base (4) is connected with a small-end centering sleeve (8) in an interference fit manner.

4. The rectangular axle bore self-centering device of claim 1, wherein: and an elastic pad (10) is sleeved on the surface of the target base (4) between the nut (11) and the large washer (9).

5. The rectangular shaft hole self-centering device of claim 1, wherein: the taper positioning block (5) and the end face positioning block (6) are both of a cross structure.

6. The rectangular axle bore self-centering device of claim 1, wherein: and grooves (15) are formed in the opposite sides of the taper positioning block (5) and the end face positioning block (6).

7. The rectangular shaft hole self-centering device of claim 1, wherein: the taper positioning block (5) and the end face positioning block (6) are respectively positioned at two sides of the rectangular shaft hole (2).

8. The rectangular axle bore self-centering device of claim 1, wherein: target base (4) are including inserting post (12) and plug (13), the one end fixedly connected with plug (13) of inserting post (12).

9. The rectangular axle hole self-centering device of claim 8, wherein: the inserting column (12) comprises three connecting rods (14), and the three connecting rods (14) are connected in sequence.

10. The rectangular axle hole self-centering device of claim 9, wherein: the diameters of the three connecting rods (14) are reduced from left to right in sequence.