CN217266974U - Hydraulic clamping device for bridge rotator - Google Patents

Abstract

The utility model relates to a hydraulic pressure clamping device that bridge rotor was used, including first jack, be equipped with the cylinder body on the first jack and advance oil pipe and the cylinder body returns oil pipe, be equipped with the hydraulic drive unit in the first jack, the cylinder body advances oil pipe and returns oil pipe through the hydraulic drive unit with the cylinder body and is linked together, it does not be equipped with the haplopore anchor to equally divide on the hydraulic drive unit, first jack is equipped with second jack and third jack on one side of keeping away from the haplopore anchor in proper order, it is equipped with porous anchor respectively to equally divide on second jack and the third jack, it does not be equipped with the tool holder group to equally divide in porous anchor and the haplopore anchor, be equipped with first reset sleeve pipe on the tool holder group on the porous anchor, be equipped with first clamp plate on the first reset sleeve pipe between the tool holder group on the porous anchor and the corresponding first clamp plate. This product can be before the process of turning effectual regulation steel strand wires rate of tension. The utility model discloses adjust, convenient to use, have extensive market prospect.

Description

Hydraulic clamping device for bridge rotator

Technical Field

The utility model relates to a hydraulic equipment field that bridge rotator was used, concretely relates to hydraulic pressure clamping device that bridge rotator was used.

Background

The bridge rotation construction refers to a construction method for positioning a bridge structure in place through rotation after prefabrication of the bridge structure at a non-designed axis position is completed. It can convert the operation over the obstacle into the operation on the shore or near the ground. According to the rotation direction of the bridge structure, it can be divided into a vertical swivel construction method, a horizontal swivel construction method and a method combining horizontal swivel and vertical swivel. The flat-turn method is most applied, and is mainly applied to the situation that the support cannot be made on the upper crossing canyons, rivers, railways, expressways and the like. The turning system consists of a lower rotary table, an upper rotary table, a spherical hinge, a slideway and a traction system, wherein the turning process is realized by forming a rotating couple through pulling a traction cable which is also called a steel strand by a continuous jack.

The bridge that the in-process of turning needs many steel strands to make a concerted effort jointly will take the bridge of turning to preset the position usually, many steel strands lack effectual rate of tension adjusting device before by the centre gripping among the prior art, this will lead to turning the in-process many steel strands atress at the bridge and uneven, the too big steel strand of atress very easily takes place cracked accident and leads to the bridge to turn unable normal clear, and there is the cracked steel strand of potential safety hazard emergence to hinder the site operation personnel easily after the fracture in addition, there is the drawback technically, lead to product market to lack the popularization nature.

Disclosure of Invention

The utility model provides a hydraulic clamping device that bridge that can effectual regulation steel strand wires rate of tension was used before the process of turning is changeed for overcome defect among the prior art.

The utility model adopts the technical proposal that: a hydraulic clamping device for a bridge rotator comprises a first jack, wherein a cylinder body oil inlet pipe and a cylinder body oil return pipe are arranged on the first jack, a hydraulic driving unit is arranged in the first jack, the cylinder body oil inlet pipe and the cylinder body oil return pipe are communicated through the hydraulic driving unit, the hydraulic drive unit on equally divide and do not be provided with the haplopore anchor, first jack has set gradually second jack and third jack on keeping away from the one side of haplopore anchor, equally divide on second jack and the third jack and do not be provided with porous anchor, equally divide in porous anchor and the haplopore anchor and do not be provided with the instrument clamping piece group, on the porous anchor the instrument clamping piece group on be provided with first reset sleeve pipe, be provided with first clamp plate on the first reset sleeve pipe, on the porous anchor the instrument clamping piece group and corresponding first clamp plate between first reset sleeve pipe on be provided with first reset spring.

Preferably, the hydraulic drive unit include the driving tube mounting groove that piston driving tube and first jack set up, be provided with oil feed capping and oil return capping on the piston driving tube in the driving tube mounting groove, the piston driving tube include tubulose portion and piston portion, piston portion be located in the driving tube mounting groove between oil feed capping and the oil return capping.

Preferably, the number of the hydraulic drive units is several.

Preferably, first jack be provided with first pressure cover in the serving of being close to oil feed capping, be provided with first pressure pipe in the first pressure cover, first pressure pipe offsets with the oil feed capping, first jack be provided with the second in the serving of being close to oil return capping and press the cover, be provided with the second in the second pressure cover and press the pipe, the second is pressed and is pressed the pipe and the oil return capping offsets, equally divide between first pressure cover and the first jack and between first jack and the second pressure cover and do not pass through first bolt fastening.

Preferably, oil feed capping and the driving tube mounting groove between and between driving tube mounting groove and the oil return capping equally divide and do not be provided with first sealing washer, oil feed capping and piston driving tube between and equally divide between piston driving tube and the oil return capping and do not be provided with the second sealing washer, piston portion and driving tube mounting groove be provided with the third sealing washer.

Preferably, the second pressing sleeve is provided with a single-hole anchor mounting sleeve on one side far away from the first jack, the single-hole anchor is mounted in the single-hole anchor mounting sleeve, the tool clamping sheet group mounted in the single-hole anchor is provided with a second reset sleeve, the second reset sleeve is provided with a second pressing plate, and a second reset spring is arranged on the second reset sleeve between the second pressing plate and the tool clamping sheet group mounted in the single-hole anchor

Preferably, first pressure cover be provided with fixed cover keeping away from one of first jack one, be provided with the stopper on the first pressure cover, pass through the second bolt fastening between stopper and the fixed cover, first jack, second jack and third jack are located the coaxial line, the second jack is located between first jack and the third jack, be provided with support post between fixed cover and the second jack and third jack are equallyd divide respectively.

Preferably, the second pressing plate and the single-hole anchor mounting sleeve as well as the multi-hole anchor and the corresponding first pressing plate are respectively provided with a threaded lead screw, and the threaded lead screws on two sides of the second pressing plate and the threaded lead screws on two sides of the first pressing plate are respectively provided with adjusting nuts.

The utility model has the advantages that: at first, the utility model discloses an effectual regulation steel strand wires rate of tension before the process of turning, the too big steel strand wires emergence cracked accident of atress of having avoided a plurality of to be used for the work of turning because the atress is inhomogeneous and lead to has effectively avoided because the incident that the steel strand wires fracture and take place.

Secondly, second clamp plate and haplopore anchor installation sheathe in and equally divide between porous anchor and the corresponding first clamp plate and do not be provided with the screw lead screw, equally divide on the screw lead screw of second clamp plate both sides and the screw lead screw of first clamp plate both sides and do not be provided with adjusting nut. The compression amount of the first return spring is convenient to adjust by adjusting the position of the first pressure plate on the corresponding threaded lead screw; and the position of the second pressure plate on the corresponding threaded lead screw is adjusted so as to adjust the compression amount of the second return spring.

Finally, the number of the first sealing ring, the second sealing ring and the third sealing ring of the utility model is at least one, and the first sealing ring, the second sealing ring and the third sealing ring adopt O-shaped sealing rings made of rubber materials and/or Y-shaped sealing rings made of rubber materials; the sealing effect is improved.

The utility model has the advantages of simple structure, convenient operation, design benefit has improved work efficiency greatly, has fine social and economic benefits, is the product of easily using widely.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the first jack, the limiting block and the fixing sleeve of the present invention.

Fig. 3 is a partially enlarged schematic view of detail a of fig. 2.

Detailed Description

As shown in fig. 1, 2 and 3, a hydraulic clamping device for a bridge rotation body comprises a first jack 1, wherein a cylinder body oil inlet pipe 2 and a cylinder body oil return pipe 3 are arranged on the first jack 1, a hydraulic driving unit is arranged in the first jack 1, the cylinder body oil inlet pipe 2 is communicated with the cylinder body oil return pipe 3 through the hydraulic driving unit, single-hole anchors 4 are respectively arranged on the hydraulic driving unit, a second jack 5 and a third jack 6 are sequentially arranged on one side of the first jack 1 away from the single-hole anchors 4, porous anchors 7 are respectively arranged on the second jack 5 and the third jack 6, tool clamping piece groups are respectively arranged in the porous anchors 7 and the single-hole anchors 4, and the tool clamping piece groups are two-piece tool clamping pieces or three-piece tool clamping pieces sold in the market; the tool clamping sheet group on the porous anchor 7 is provided with a first reset sleeve 8, the first reset sleeve 8 is provided with a first pressing plate 9, and the first reset sleeve 8 between the tool clamping sheet group on the porous anchor 7 and the corresponding first pressing plate 9 is provided with a first reset spring 10.

The number of the hydraulic drive units is several. Each hydraulic driving unit comprises a piston driving pipe 11 and a driving pipe mounting groove 12 arranged on the first jack 1, an oil inlet groove cover 13 and an oil return groove cover 14 are arranged on the piston driving pipe 11 in the driving pipe mounting groove 12, the piston driving pipe 11 comprises a tubular part and a piston part, the piston part is positioned in the driving pipe mounting groove 12 between the oil inlet groove cover 13 and the oil return groove cover 14, and the inner cavities of the driving pipe mounting grooves 12 between a plurality of piston parts and the oil inlet groove covers 13 are communicated with an oil inlet pipe 2 of the cylinder body; the inner cavity of the driving pipe installation groove 12 between the plurality of piston parts and the oil return groove cover 14 is communicated with the oil return pipe 3 of the cylinder body.

A first pressing sleeve 15 is arranged at one end, close to the oil inlet groove cover 13, of the first jack 1, a first pressing pipe 16 is arranged in the first pressing sleeve 15, the first pressing pipe 16 abuts against the oil inlet groove cover 13, and the first pressing pipe 16 abuts against the oil inlet groove cover 13 to limit the oil inlet groove cover 13; a second pressing sleeve 17 is arranged at one end, close to the oil return groove cover 14, of the first jack 1, a second pressing pipe 18 is arranged in the second pressing sleeve 17, the second pressing pipe 18 abuts against the oil return groove cover 14, and the second pressing pipe 18 abuts against the oil return groove cover 14 to limit the oil return groove cover 14; the first pressing sleeve 15 and the first jack 1 and the second pressing sleeve 17 are fixed through first bolts 19 respectively. The first pressing sleeve 15 or the second pressing sleeve 17 can be conveniently detached from the first jack 1 for maintenance.

Oil feed capping 13 and between the driving tube mounting groove 12 and between driving tube mounting groove 12 and the oil return capping 14 equally divide and do not be provided with first sealing washer 20, oil feed capping 13 and between piston driving tube 11 and equally divide between piston driving tube 11 and the oil return capping 14 and do not be provided with second sealing washer 21, piston portion and driving tube mounting groove 12 be provided with third sealing washer 22. The number of the first sealing ring 20, the second sealing ring 21 and the third sealing ring 22 is at least one, and the first sealing ring 20, the second sealing ring 21 and the third sealing ring 22 are O-shaped sealing rings made of rubber materials and/or Y-shaped sealing rings made of rubber materials.

The second press sleeve 17 is provided with a single-hole anchor mounting sleeve 23 on one side far away from the first jack 1, the single-hole anchor 4 is mounted in the single-hole anchor mounting sleeve 23, the single-hole anchor 4 is mounted in the single-hole anchor, a second reset sleeve 24 is arranged on the tool clamping piece set, a second pressing plate 25 is arranged on the second reset sleeve 24, and the second pressing plate 25 and the single-hole anchor 4 are mounted in the second reset sleeve 24 between the tool clamping piece sets and is provided with a second reset spring 26.

The first pressing sleeve 15 is provided with a fixed sleeve 27 at one end far away from the first jack 1, the first pressing sleeve 15 is provided with a limit block 28 and a limit groove, the limit groove is annular, and the limit block 28 is of an arc-shaped structure; the limiting block 28 and the fixing sleeve 27 are fixed through a second bolt 29, the first jack 1, the second jack 5 and the third jack 6 are located on the same axis, the second jack 5 is located between the first jack 1 and the third jack 6, and the supporting columns 30 are respectively arranged between the fixing sleeve 27 and the second jack 5 and between the second jack 5 and the third jack 6.

And threaded lead screws 31 are respectively arranged on the second pressing plate 25 and the single-hole anchor mounting sleeve 23 and between the multi-hole anchor 7 and the corresponding first pressing plate 9, and adjusting nuts 32 are respectively arranged on the threaded lead screws 31 on two sides of the second pressing plate 25 and the threaded lead screws 31 on two sides of the first pressing plate 9. The compression amount of the first return spring 10 is convenient to adjust by adjusting the position of the first pressure plate 9 on the corresponding threaded lead screw 31; adjusting the position of the second pressure plate 25 on the respective threaded lead screw 31 facilitates adjusting the amount of compression of the second return spring 26.

The using method of the product is as follows: as shown in fig. 1, 2, and 3, before the actual bridge turning operation, the tension of a plurality of steel strands should be adjusted, and the specific tension adjustment process of the steel strands is as follows:

step 1, hydraulic oil is conveyed to an oil inlet pipe 2 of the cylinder body, the steel strand which is not tensioned in the plurality of steel strands moves towards a second pressing plate 25 under the clamping of the corresponding single-hole anchor 4 and the tool clamping piece group driven by the corresponding hydraulic driving unit, the corresponding hydraulic driving unit on the steel strand which is tensioned in the plurality of steel strands is driven to be stationary, and when the preset position is reached, the hydraulic oil conveying to the oil inlet pipe 2 of the cylinder body is stopped.

And 2, delivering hydraulic oil to the oil return pipe 3 of the cylinder body, enabling the hydraulic driving unit corresponding to the untensioned steel strand to reset, enabling the corresponding tool clamping piece group to slide on the untensioned steel strand under the driving of the second reset spring 26 on the corresponding second reset sleeve 24 until all the single-hole anchors 4 driven by the hydraulic driving unit reset into the single-hole anchor mounting sleeve 23, and enabling all the second reset springs 26 to reset to the same state.

And (3) repeating the processes of the step (1) and the step (2) in sequence until the tensity of all the steel strands is consistent. The process of adjusting the tension of a plurality of steel strands is completed.

After the adjustment process of a plurality of steel strands is completed, the formal driving process of the bridge rotation body can be started, and the specific process is as follows: step 1, the second jack 5 drives the corresponding porous anchor 7 to move, the tool clamping piece groups installed on the porous anchor 7 drive the steel strands to move synchronously, and the third jack 6 is not driven in the process, so that the tool clamping piece groups installed on the porous anchor 7 corresponding to the third jack 6 slide on the steel strands due to resistance brought by the corresponding first return spring 10.

Step 2, the piston part of the second jack 5 is reset, and at the moment, the corresponding tool clamping piece group of the second jack 5 slides on the steel strand under the action of the elastic force of the corresponding first reset spring 10; meanwhile, the third jack 6 is driven, and the corresponding porous anchor 7 on the third jack 6 drives the corresponding tool clamping piece group to clamp and drive the plurality of steel strands to synchronously move.

Step 3, the piston part of the third jack 6 is reset, and at the moment, the corresponding tool clamping piece group of the third jack 6 slides on the steel strand under the action of the elastic force of the corresponding first reset spring 10; meanwhile, the second jack 5 is driven, and the corresponding porous anchor 7 on the second jack 5 drives the corresponding tool clamping piece group to clamp and drive the plurality of steel strands to synchronously move.

And (5) repeatedly and sequentially operating the step (2) and the step (3) until the bridge rotates to the preset position.

Through this embodiment, realized effectual regulation steel strand wires rate of tension before the process of turning, avoided a plurality of to be used for the steel strand wires of turning work because the atress is inhomogeneous and the too big steel strand wires of atress that leads to take place cracked accident, effectively avoided because the incident that the steel strand wires fracture and take place.

The utility model discloses a hydraulic pressure clamping device that bridge rotator was used that satisfies the hydraulic equipment field worker needs that bridge rotator was used makes the utility model discloses extensive market prospect has.

Claims (8)

1. The utility model provides a hydraulic clamping device that bridge rotor was used which characterized in that: comprises a first jack (1), a cylinder body oil inlet pipe (2) and a cylinder body oil return pipe (3) are arranged on the first jack (1), a hydraulic drive unit is arranged in the first jack (1), the cylinder body oil inlet pipe (2) is communicated with the cylinder body oil return pipe (3) through the hydraulic drive unit, the hydraulic drive unit is respectively provided with a single-hole anchor (4), the first jack (1) is sequentially provided with a second jack (5) and a third jack (6) on one side far away from the single-hole anchor (4), the second jack (5) and the third jack (6) are respectively provided with a multi-hole anchor (7), the multi-hole anchor (7) and the single-hole anchor (4) are respectively provided with a tool clamping piece group, the tool clamping piece group on the multi-hole anchor (7) is provided with a first reset sleeve (8), and the first reset sleeve (8) is provided with a first pressing plate (9), a first return spring (10) is arranged on a first return sleeve (8) between the tool clamping sheet group on the porous anchor (7) and the corresponding first pressure plate (9).

2. The hydraulic clamping device for a bridge swivel of claim 1, wherein: the hydraulic drive unit include driving tube mounting groove (12) that set up on piston driving tube (11) and first jack (1), be provided with oil feed capping (13) and oil return capping (14) on piston driving tube (11) in driving tube mounting groove (12), piston driving tube (11) include tubulose portion and piston portion, the piston portion be located driving tube mounting groove (12) between oil feed capping (13) and oil return capping (14).

3. The hydraulic clamping device for a bridge swivel of claim 1, wherein: the number of the hydraulic drive units is a plurality.

4. The hydraulic clamping device for a bridge swivel of claim 2, wherein: first jack (1) serve and be provided with first pressure cover (15) being close to one of oil feed capping (13), be provided with first pressure pipe (16) in first pressure cover (15), first pressure pipe (16) and oil feed capping (13) offset, first jack (1) serve and be provided with second pressure cover (17) being close to oil return capping (14), be provided with the second in second pressure cover (17) and press pipe (18), the second is pressed pipe (18) and is offset with oil return capping (14), first pressure cover (15) and first jack (1) and second are pressed and are equallyd divide between cover (17) and do not fix through first bolt (19).

5. The hydraulic clamping device for a bridge swivel of claim 2, wherein: oil feed capping (13) and between driving tube mounting groove (12) and oil return capping (14) equally divide and do not be provided with first sealing washer (20), oil feed capping (13) and piston driving tube (11) between and between piston driving tube (11) and oil return capping (14) equally divide and do not be provided with second sealing washer (21), piston portion and driving tube mounting groove (12) be provided with third sealing washer (22).

6. The hydraulic clamping device for a bridge swivel of claim 4, wherein: the second press sleeve (17) one side of keeping away from first jack (1) be provided with haplopore anchor installing sleeve (23), haplopore anchor (4) install in haplopore anchor installing sleeve (23), install in haplopore anchor (4) the instrument clamp group on be provided with second reset sleeve pipe (24), be provided with second clamp plate (25) on second reset sleeve pipe (24), install in second clamp plate (25) and haplopore anchor (4) the instrument clamp group between second reset sleeve pipe (24) on be provided with second reset spring (26).

7. The hydraulic clamping device for a bridge swivel of claim 4, wherein: first pressure cover (15) serve and be provided with fixed cover (27) keeping away from one jack (1), be provided with stopper (28) on first pressure cover (15), it is fixed through second bolt (29) between stopper (28) and fixed cover (27), first jack (1), second jack (5) and third jack (6) are located the coaxial line, second jack (5) are located between first jack (1) and third jack (6), it divide equally between fixed cover (27) and second jack (5) and third jack (6) and do not be provided with support post (30).

8. The hydraulic clamping device for a bridge swivel of claim 6, wherein: and the second pressing plate (25) and the single-hole anchor mounting sleeve (23) and the space between the multi-hole anchor (7) and the corresponding first pressing plate (9) are respectively provided with a threaded lead screw (31), and the threaded lead screws (31) on the two sides of the second pressing plate (25) and the threaded lead screws (31) on the two sides of the first pressing plate (9) are respectively provided with an adjusting nut (32).

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