High-performance basin type support with replaceable friction pair

Abstract

The utility model discloses a high-performance basin type support with a replaceable friction pair, which comprises an upper steel plate, a plane sliding plate, a middle steel plate and a lower bottom basin which are sequentially arranged along the height direction, a hoop is arranged on the peripheral side of the middle steel plate, and a rear fixing barrier strip and two side fixing barrier strips are arranged on the lower end face of the upper steel plate. The rear fixing barrier strip and the two side face fixing barrier strips are each provided with a clamping groove capable of containing a mirror face stainless steel plate. The mirror surface stainless steel plate is fixed below the upper steel plate through two fixing bolts; the distance between the two fixing bolts is larger than the diameter of the hoop. When the mirror surface stainless steel plate needs to be detached, the support is jacked, and a gap of 3-5 mm is reserved between the mirror surface stainless steel plate of the support and the plane sliding plate and used for taking out the fixing bolts and drawing out the mirror surface stainless steel plate. The device is simple in structure and convenient to adjust.

Description

Technical Field

[0001] The utility model relates to the field of road bridge bearings, in particular to a high-performance pot-type bearing with replaceable friction pairs. Background Art

[0002] In the application of pot-type bearings in actual bridges, with the annual increase in traffic volume and heavy-load traffic, the use environment has become increasingly harsh, resulting in many defects such as premature wear of the sliding plate and rust of steel parts. Through the mechanical property test study of the replaced bearings, it was found that the main defect was severe wear of the friction pair, while the steel parts did not suffer obvious performance damage. The "Highway Bridge Technical Condition Assessment Standard" (JTG / T H21-2011) lists that when the exposed height of the bearing is less than 0.2mm, it will cause damage to other parts. The friction pair of the bearing (a friction system composed of friction between the flat sliding plate and the mirror stainless steel plate) will fall out after severe wear during the working process, affecting driving safety. At the same time, the friction pair of the pot-type bearing has a short life, posing a great threat to traffic safety. Therefore, the bearing needs to be replaced. However, it is difficult to remove the bearing when replacing it, and it is difficult to hoist the bearing. The replacement of the bearing requires not only the lifting of the beam body, but also the excavation and re-casting of the concrete around the original anchor rod. According to incomplete statistics, the cost of bearing replacement is 10 to 20 times of the bearing cost. Therefore, a high-performance pot bearing with replaceable friction pair that can directly replace the flat slide plate and the mirror stainless steel plate and is easy to operate is proposed. Utility Model Content

[0003] In view of the technical problems existing in the background technology, the utility model provides a high-performance pot-type bearing with replaceable friction pairs that can directly replace the flat slide plate and the mirror stainless steel plate, and is easy to operate and convenient. To achieve the above purpose, the utility model provides the following technical solutions:

[0004] A high-performance pot-type support with replaceable friction pairs, comprising an upper steel plate, a flat slide plate, an intermediate steel plate and a lower bottom pot arranged in sequence along the height direction, a hoop arranged on the peripheral side of the intermediate steel plate, a rear fixed baffle and two side fixed baffles arranged on the lower end surface of the upper steel plate, the rear fixed baffle and the two side fixed baffles are both provided with a slot capable of accommodating a mirror stainless steel plate; the mirror stainless steel plate is fixed below the upper steel plate by two fixing bolts; the spacing between the two fixing bolts is greater than the diameter of the hoop;

[0005] When the mirror stainless steel plate needs to be disassembled, the support is lifted, and a 3-5 mm gap is left between the mirror stainless steel plate of the support and the flat slide plate 7 for taking out the fixing bolts and pulling out the mirror stainless steel plate.

[0006] The middle steel plate is composed of three discs with different diameters arranged coaxially, the diameters of the three discs increase successively along the height direction, the disc in the middle of the middle steel plate is provided with a number of circular openings and a corresponding number of rectangular openings at equal intervals along the circumferential direction, and arc-shaped chamfers are provided on both sides of the rectangular openings;

[0007] The hoop is in the shape of a circular ring, and a plurality of arc-shaped strips matching the corresponding circular openings of the middle steel plate are arranged at equal intervals on one end surface of the hoop along the circumferential direction; each arc-shaped strip is provided with a cylinder matching the corresponding circular opening of the middle steel plate;

[0008] When the support is working, each cylinder on the hoop is stuck into the corresponding circular opening of the middle steel plate, and the height of the upper end surface of the hoop is higher than the height of the upper end surface of the middle steel plate; when the flat slide needs to be disassembled, the support is lifted, the hoop is lifted, the cylinder on the hoop is separated from the corresponding circular opening of the middle steel plate, the hoop is rotated, and the arc-shaped strip on the hoop falls into the corresponding rectangular opening on the middle steel plate, and the upper surface of the hoop is flush with the upper surface of the middle steel plate.

[0009] Preferably, the length of the arc-shaped strip is smaller than the rectangular opening.

[0010] Preferably, the inner diameter of the hoop is larger than the diameter above the middle steel plate.

[0011] Preferably, a rubber plate is installed between the middle steel plate and the lower bottom basin, and a circle of brass sealing ring is arranged on the rubber plate.

[0012] Preferably, the number of the circular openings is 4.

[0013] The beneficial effects of the utility model are:

[0014] (1) Compared with the traditional pot-type bearing, if the friction pair is excessively worn, directly replacing the bearing requires a cost 10 to 20 times the bearing cost. However, this high-performance pot-type bearing with replaceable friction pair can directly replace the flat slide plate and mirror stainless steel plate, greatly reducing the waste of manpower and material resources;

[0015] (2) When the flat slide plate and the mirror stainless steel plate need to be replaced, it is easy to remove the flat slide plate and the mirror stainless steel plate, saving the time for maintenance and replacement;

[0016] (3) This high-performance pot-type bearing with replaceable friction pair greatly extends the service life of the bearing and saves related resources;

[0017] (4) This high-performance pot-type bearing with replaceable friction pair effectively protects traffic safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1This is a schematic diagram of the external structure of the high-performance pot-type support of the utility model;

[0019] Figure 2 It is a schematic diagram of the internal structure of the high-performance pot-type support of the utility model (working state);

[0020] Figure 3 This is a schematic diagram of the internal structure of the high-performance pot-type support of the utility model (replacement status);

[0021] Figure 4 This is a schematic diagram of the structure of the mirror stainless steel plate in the utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the middle steel plate in the utility model;

[0023] Figure 6 It is a structural schematic diagram of the ferrule in the utility model;

[0024] In the figure, 1-upper steel plate, 2-side fixed baffle, 3-rear fixed baffle, 4-mirror stainless steel plate, 5-fixing bolt, 6-hoop, 6-1 cylinder, 6-2-arc-shaped strip, 7-flat slide plate, 8-lower bottom basin, 9-rubber plate, 10-brass sealing ring, 11-middle steel plate, 11-1-circular opening, 11-2-rectangular opening, 11-3-chamfer. DETAILED DESCRIPTION

[0025] Combination Figure 1-Figure 6 The utility model discloses a high-performance basin-type support with replaceable friction pair, comprising an upper steel plate 1, a flat slide plate 7, an intermediate steel plate 11 and a lower bottom basin 8 arranged in sequence along the height direction; a rear fixed baffle 3 and two side fixed baffles 2 are arranged on the lower end surface of the upper steel plate 1, and a card slot capable of accommodating a mirror stainless steel plate 4 is provided on the rear fixed baffle 3 and the two side fixed baffles 2;

[0026] The side fixing baffle 2 and the rear fixing baffle 3 are welded to the upper steel plate 1 as a whole, and after the mirror stainless steel plate 4 is fixed to the side fixing baffle 2 and the rear fixing baffle 3, two fixing bolts 5 are used to firmly fix the mirror stainless steel plate 4 to the upper steel plate 1. The distance between the two fixing bolts 6 must be greater than the diameter of the hoop 6.

[0027] When it is necessary to disassemble the mirror stainless steel plate 4, the support is lifted, and a 3-5 mm gap is left between the mirror stainless steel plate 4 of the support and the flat slide plate 7 for taking out the fixing bolts 6 and pulling out the mirror stainless steel plate 4.

[0028] The middle steel plate 11 is composed of three discs of different diameters arranged coaxially. The diameters of the three discs increase in sequence along the height direction. The disc in the middle of the middle steel plate is provided with four circular openings 11-1 and four rectangular openings 11-2 at equal intervals along the circumferential direction. The rectangular openings 11-2 are provided with circular arc chamfers on both sides. The lathe finishing is fast and convenient. Figure 5 .

[0029] The hoop 6 is in the shape of a circular ring, and four arc-shaped strips 6-2 are arranged at equal intervals in the hoop 6, and a cylinder 6-1 is arranged on the arc-shaped strip 6-2. Figure 6 , wherein the length of the arc-shaped strip 6-2 of the hoop 6 is slightly smaller than the rectangular opening 11-2 of the middle steel plate 11, so that the hoop 6 can be lifted when the flat slide plate 7 is replaced; the diameter of the cylindrical body 6-1 of the hoop 6 is slightly smaller than the circular opening 11-1 of the middle steel plate 11, so that the positioning when the slide plate 7 is replaced is convenient. At the same time, the inner diameter of the hoop 6 is slightly larger than the diameter above the middle steel plate 11, so as to prevent dust and debris from entering the gap of the support during operation, causing the hoop 6 and the middle steel plate 11 to get stuck, and avoid the inconvenience when replacing the slide plate.

[0030] A rubber plate 9 is installed between the middle steel plate 11 and the lower bottom basin 8 , and a circle of brass sealing ring 10 is arranged on the rubber plate 9 .

[0031] like Figure 1-Figure 6 As shown, the working principle and process of the utility model are as follows:

[0032] When assembling this high-performance pot-type support with replaceable friction pairs, insert the mirror stainless steel plate 4 between the side fixed baffle 2 and the rear fixed baffle 3, and then use bolts 5 to firmly fix the mirror stainless steel plate 4 to the bottom of the upper steel plate 1, as shown in FIG. Figure 1-Figure 2 shown.

[0033] like Figure 2 As shown, when the support is working, each cylinder 6-1 on the hoop 6 is inserted into the corresponding circular opening 11-1 of the middle steel plate 11, and the height of the upper end surface of the hoop 6 is higher than the height of the upper end surface of the middle steel plate 11;

[0034] In the case that the mirror stainless steel plate 4 and the flat slide plate 7 are worn too much, first lift the support (upper bottom plate 8 and mirror stainless steel plate 4), and when there is a 3-5mm gap between the mirror stainless steel plate 4 of the support and the flat slide plate 7, first, take out the bolt 5, pull out the worn mirror stainless steel plate 4, replace it with a new mirror stainless steel plate 4, and then tighten the bolt 5;

[0035] Then, the hoop 6 is unscrewed to make the cylindrical body 6-1 on the hoop 6 separate from the circular opening 11-1 of the middle steel plate 11, and then the hoop 6 is rotated to make the arc-shaped strip 6-2 on the hoop 6 align with the rectangular opening 11-2 on the middle steel plate 11, and then it is dropped. Figure 3 As shown, at this time, the hoop 6 is flush with the middle steel plate 11, the worn flat slide plate 7 is removed, and a new flat slide plate 7 is installed. Then the hoop 6 is lifted up to make the arc-shaped strip 6-2 on the hoop 6 separate from the rectangular opening 11-2 of the middle steel plate 11, and then the hoop 6 is rotated to make the cylinder 6-1 on the hoop 6 align with the circular opening 11-1 of the middle steel plate 11, and then the hoop 6 is dropped to restore the state as shown in FIG. Figure 2 working status.

[0036] Finally, cancel the lifting of the support and complete the replacement of the support friction pair.

Claims

1. A high-performance pot-type bearing with replaceable friction pair, comprising an upper steel plate, a flat slide plate, an intermediate steel plate and a lower bottom pot arranged in sequence along the height direction, a hoop arranged on the peripheral side of the intermediate steel plate, characterized in that: A rear fixed baffle and two side fixed baffles are provided on the lower end surface of the upper steel plate, and a slot capable of accommodating the mirror stainless steel plate is provided on the rear fixed baffle and the two side fixed baffles; the mirror stainless steel plate is installed under the upper steel plate by two fixing bolts; the spacing between the two fixing bolts is greater than the diameter of the hoop; When the mirror stainless steel plate needs to be removed, the support is lifted, and a 3-5mm gap is left between the mirror stainless steel plate of the support and the flat slide plate for removing the fixing bolts and pulling out the mirror stainless steel plate.

2. The high-performance pot-type bearing with replaceable friction pair according to claim 1 is characterized in that: The middle steel plate is composed of three discs with different diameters arranged coaxially, the diameters of the three discs increase successively along the height direction, the disc in the middle of the middle steel plate is provided with a number of circular openings and a corresponding number of rectangular openings at equal intervals along the circumferential direction, and arc-shaped chamfers are provided on both sides of the rectangular openings; The hoop is in the shape of a circular ring, and a plurality of arc-shaped strips matching the corresponding circular openings of the middle steel plate are arranged at equal intervals on one end surface of the hoop along the circumferential direction; each arc-shaped strip is provided with a cylinder matching the corresponding circular opening of the middle steel plate; When the support is working, each cylinder on the hoop is stuck into the corresponding circular opening of the middle steel plate, and the height of the upper end surface of the hoop is higher than the height of the upper end surface of the middle steel plate; when the flat slide needs to be disassembled, the support is lifted, the hoop is lifted, the cylinder on the hoop is separated from the corresponding circular opening of the middle steel plate, the hoop is rotated, and the arc-shaped strip on the hoop falls into the corresponding rectangular opening on the middle steel plate, and the upper surface of the hoop is flush with the upper surface of the middle steel plate.

3. The high-performance pot-type bearing with replaceable friction pair according to claim 2 is characterized in that: The length of the arc-shaped strip is smaller than the rectangular opening.

4. The high-performance pot-type bearing with replaceable friction pair according to claim 1 is characterized in that: The inner diameter of the hoop is larger than the diameter above the middle steel plate.

5. The high-performance pot-type bearing with replaceable friction pair according to claim 1 is characterized in that: A rubber plate is installed between the middle steel plate and the lower bottom basin, and a circle of brass sealing ring is arranged on the rubber plate.

6. The high-performance pot-type bearing with replaceable friction pair according to claim 2 is characterized in that: The number of the circular openings is 4.

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