WO2003029563A1

WO2003029563A1 - A side to side adjustment bearing

Info

Publication number: WO2003029563A1
Application number: PCT/CN2002/000464
Authority: WO
Inventors: Xiangming Wu; Zhong'en Zhang; Sirong Weng
Original assignee: Shanghai Maglev Transportation Development Co., Ltd
Priority date: 2001-09-28
Filing date: 2002-07-01
Publication date: 2003-04-10
Also published as: HK1045345B; CN1343814A; HK1045345A1; CN1128901C

Abstract

A side to side adjustment bearing, comprising a roof (1), a footstock (2), a ball-pivot (3), a pillar-bolt (4), locknuts (5), lockscrews (52), a pillar-bolt base (6) and a baseplate (7), there are four shoulders (771, 772, 773, 774) around the baseplate (7), the flange (64) of said pillar-bolt base (6) is square or rectangular, and four transverse holes (63) are formed at the corners of the flange (64), there is each a wedge-shaped space (8) between the corresponding sides and the shoulders (771, 773), into the wedge-shaped space (8) can insert a wedge (81) and several isopachous plug gauges (82, 83, 84, 85), four screw holes (71) are formed at the positions of the baseplate (7) which be relative to the transverse holes (63) of the flange (64), then said pillar-bolt base (6) is fixed to the baseplate (7) by the bolts (75) passing through the transverse holes (63) and the screw holes (71).

Description

TECHNICAL FIELD

The present invention relates to an adjustable support, and particularly to a lateral adjustment support for the installation of elevated road beams, rail vehicle track beams, and magnetic suspension railway track beams. technical background

The applicant applied for an invention patent "adjustable support" (application number: 01126627.9, application date: September 4, 2001). The adjustable track beam fixed support, adjustable track beam unidirectional movable support and adjustable track were proposed. The beam bi-directional movable support adopts stud and stud base, lock nut and lock screw and ball hinge system, which solves the problem of vertical adjustment of the support; at the same time, it is composed of a stud base, lower floor and high-strength bolt The level adjustment system also basically solves the problem of lateral adjustment of the support, but the level adjustment system is not perfect, because:

1. The high-strength bolts are used to connect and fix the stud base and the bottom plate. The friction is used to prevent the movement of the support. Although the friction surfaces have been treated, the load is limited, which is not practical for excessive loads. Already.

2. Loosening or tightening of high-strength bolts often requires a torque wrench, which is not easy to operate.

3. This structure is relatively large, and it is difficult to operate in a small space of the track beam support. Summary of the Invention

The technical problem to be solved by the present invention is to overcome the shortcomings of the adjustable support described above, and provide a lateral adjustment support. The support has greater lateral movement resistance, and the lateral adjustment of the support is continuously adjustable within a certain range. Easy operation and reliable locking.

The technical solution of the present invention is:

A lateral adjustment support is composed of a top plate, a top seat, a ball hinge, a stud, and a lock nut. The screw, stud base and base plate are composed of:

① The base plate has convex shoulders on all sides, and the flange of the stud base is square or rectangular and is provided with a transverse waist hole;

② A wedge-shaped space is formed between the two sides of the base flange and the shoulder of the bottom plate, and a wedge and several equal-thickness plugs can be inserted into the two wedge-shaped spaces;

③ A screw hole is provided at the position of the bottom plate relative to the lateral waist hole of the base flange, and the stud base is connected with the bottom plate through the lateral waist hole and the screw hole of the bottom plate with bolts.

The two opposite corners of the bottom plate, that is, the corners close to the two ends of the wide end of the wedge-shaped space, are each provided with a locking bolt seat through a screw.

The included angle of the wedge is 7 °.

The best included angle of the wedge is 3.8 °.

The lateral adjustment range of the wedge is 2.5 mm or more.

The thickness of the said equal thickness plug iron is 2.5mm, 5mm, 10mm, 20mm, respectively.

The advantages of the invention are:

1. The present invention relies on the thrust of the shoulder of the bottom plate to prevent the movement between the base and the bottom plate. The resistance is only related to the thickness and width of the shoulder, and it is no longer provided by the bolt. Therefore, the greater bearing capacity is obtained. Need to design and process a shoulder with appropriate thickness and width can be solved.

2. In the present invention, the included angle of the wedge is 7 °, which is a self-locking included angle, that is, the wedge will not retreat without force, and a lock bolt seat and a lock bolt against the wedge are also provided, which can make the track The beam of the support will not loosen under the high-frequency impact force, so the lateral positioning of the support is reliable.

3. Since the adjustment range of the wedge is 2.5mm, and the thickness of the equal-thickness plug iron is 2.5mm, 5mm, 10mm, 20mm, the support is continuously adjustable in the range of ± 30mm.

4. The adjustment operation is very convenient. Just loosen the anti-loosening bolt, and use the wedge or replace the plug to complete the adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic half sectional view of a lateral adjustment support of the present invention. FIG. 2 is a sectional view of FIG. 1AA. detailed description

FIG. 1 is a half-section schematic diagram of an embodiment of a lateral adjustment support of the present invention. The lateral adjustment support of the present invention includes a top plate 1, a top seat 2, a ball hinge 3, a stud 4, a lock nut 5, a lock screw 52, and a stud base. 6 and bottom plate 7, which are characterized by:

The base plate 7 has protruding shoulders 771, 772, 773, 774 around the flange. The flange 64 of the stud base 6 is square or rectangular and is provided with a transverse waist hole 63. The stud base 6 is placed around the base plate 7. In the recess surrounded by the shoulders, a wedge-shaped space 8 is formed between each side of the base flange 64 and the bottom plate shoulders 771 and 773, and a wedge 81 and four can be inserted into the two wedge-shaped spaces 8. Thick plug irons 82, 83, 84, 85 are provided with screw holes 71 at the position of the bottom plate 7 relative to the lateral waist holes 63 of the base flange 64, and the stud base 6 passes through the lateral waist holes 63 and the bottom plate with bolts 75 The screw hole 71 is connected to the bottom plate 7.

The two opposite corners of the bottom plate 7, that is, the two diagonal corners near the wide end of the wedge-shaped space 8 are provided with an L-shaped lock bolt seat 9 for each of the screws 92 and 93. The lock bolt seat 9 is a wedge-shaped block. An anti-loosening bolt 91 is installed in the direction 81 to prevent the wedge 81 from coming back.

The included angle of the wedge 81 should be equal to or less than 7 °. This is the critical angle at which the wedge can self-lock. The most suitable included angle of the wedge 81 is 3.8 ° to ensure that the wedge can perform under multiple impact pressures. Stable lock. In order to ensure that the wedges 81 do not fall back, the present invention not only selects an appropriate wedge angle, but also installs a lock bolt 91 to ensure foolproofness. Only when it is necessary to adjust the lateral position of the support, the anti-loosening bolt is loosened, and the lateral position of the support can be adjusted by adjusting the longitudinal position of the wedge 81 or / and changing the thick plug iron. In order to achieve continuous adjustment of the lateral position of the lateral adjustment support, the design of the equivalent thick plug is also important. The adjustable range of the wedge designed by the present invention is 2.5mm, and the thicknesses of the corresponding equal-thickness plug irons 82, 83, 84, and 85 are 2.5mm, 5mm, 10mm, and 20mm, respectively, so that the lateral adjustment support can be adjusted. The range is ± 30mm. This adjustment range should also correspond to the lateral waist hole 63 on the flange 64 of the stud base 6.

Because the bottom plate 7 of the track support beam support has been cast with the substructure during the construction of the track beam, the adjustment of the lateral position of the lateral adjustment support is actually adjusting the base 6 and the bottom plate 7 Horizontal position relationship. The adjustment method of the lateral position of the lateral adjustment support of the present invention is as follows −

1. When judging that the support is to be adjusted laterally to the right, loosen the anti-loosening bolts 91 on both sides;

2, first wedge 81 on the right to exit by tapping, or take out one, some two, or even three pieces of thick plug iron, and loosen the bolt 75;

3. Displace base 6 laterally to a suitable position;

4. Place the plug iron taken out from the right side between the plug iron and the wedge in the left wedge-shaped space, so that the left wedge space 8 is filled with the plug iron and the wedge;

5. Tighten the plug on the right wedge to make the base 6 in the correct position;

6. Tighten the lock bolts 91 on both sides and tighten the bolts 75 to complete the adjustment.

Similarly, the lateral adjustment support can also be adjusted by shifting it to the left.

The lateral adjustment mechanism of the lateral adjustment support of the present invention is applicable to both the fixed type support in the "adjustable support" and the unidirectional movable support and the bidirectional movable support.

Claims

Claim

1. A lateral adjustment support, comprising a top plate (1), a top seat (2), a ball hinge (3), a stud (4), a lock nut (5), a lock screw (52), and a stud The base (6) and the bottom plate (7) are composed of:

① The bottom plate (7) is provided with shoulders (771, 772, 773, 774) all around, and the flange (64) of the stud base (6) is square or rectangular and is provided with a transverse waist hole (63);

② A wedge-shaped space (8) is formed between each side of the base flange (64) and the bottom plate shoulders (771, 773), and a wedge (81) and several wedges can be inserted into the two wedge-shaped spaces (8). Equal thickness plug iron (82, 83, 84, 85);

③ A screw hole (71) is provided at a position of the bottom plate (7) opposite to the transverse waist hole (63) of the base flange (64). The stud base (6) passes the transverse waist hole (63) with a bolt (75). ) And the screw holes (71) of the base plate (7) are connected to the base plate.

2. The lateral adjustment support according to claim 1, characterized in that the two opposite corners of the bottom plate (7), that is, the corners near the two corners of the wide end of the wedge-shaped space (8) each pass through screws (92, 93) ) The screw is provided with a lock bolt seat (9), and the lock bolt seat (9) is provided with a lock bolt (91) that prevents the wedge (81) from falling back.

3. The lateral adjustment support according to claim 1, characterized in that the included angle 7 of said wedges. .

4. The lateral adjustment support according to claim 3, wherein the optimal included angle of said wedge is 3.8 °.

5. The lateral adjustment support according to claim 1, characterized in that the lateral adjustment range of the wedge (81) is 2.5 mm or more.

6. The lateral adjustment support according to claim 1, or 2, or 3, or 4, or 5, characterized in that the thickness of said equal thickness plug iron (82, 83, 84, 85) is 2.5 mm, respectively. , 5mm, 10mm, 20mm.