CN219276202U

CN219276202U - Beam structure of bridge type stone cutting machine

Info

Publication number: CN219276202U
Application number: CN202320219671.1U
Authority: CN
Inventors: 蔡建华; 高河森; 郑晓波; 杨起淳
Original assignee: Fujian Joborn Machinery Co ltd
Current assignee: Fujian Joborn Machinery Co ltd
Priority date: 2023-02-15
Filing date: 2023-02-15
Publication date: 2023-06-30
Anticipated expiration: 2033-02-15

Abstract

The utility model provides a beam structure of a bridge type stone cutting machine, which comprises a beam, wherein the beam comprises a steel plate frame, a pre-buried pipe and a concrete layer, the pre-buried pipe is arranged in the steel plate frame and used for forming a transmission shaft installation space, the concrete layer is poured between the steel plate frame and the pre-buried pipe, prestressed steel wires are arranged in the concrete layer along the length direction of the beam, anchors are arranged at two ends of the beam, and clamping pieces used for fixing the two ends of the prestressed steel wires are arranged on the anchors. The utility model can effectively improve the tensile strength and the compressive strength of the cross beam of the bridge cutting machine, adopts the prestressed steel wire to replace the transverse screw steel of the traditional cross beam, stretches the prestressed steel wire by the hydraulic jack after the welding of the peripheral steel plate frame is finished, and can still maintain certain prestress after the pretension component is removed because the prestressed steel wire has very high tensile strength and certain elastic deformation.

Description

Beam structure of bridge type stone cutting machine

Technical Field

The utility model relates to the technical field of bridge type stone cutting machines, in particular to a beam structure of a bridge type stone cutting machine.

Background

At present, bridge type stone cutting machines for stone processing are required to cut stones with larger and larger lengths, and the number of saw blades used in cutting is large, so that the requirements on the cross section size, the length and the self weight of the cross beam are larger and larger. In order to meet the dead weight requirement, if the thickness of the steel or cast iron is simply increased, the cost is higher. Therefore, the existing beam is generally welded by adopting peripheral steel materials, a certain amount of screw steel is distributed in an inner cavity, the screw steel is filled with concrete, and a transmission shaft space is reserved in the middle, so that the beam self-weight requirement can be met, a large amount of steel can be saved, the cost is saved, but the compressive strength of the concrete filled in the beam is high, but the tensile strength is very low, under the action of self weight and external load, the tensile stress is generated in the concrete, so that the concrete cracks, the bearing capacity and the stability of the beam are influenced, and the bridge type stone cutting machine for integrally casting the beam is also caused to have a bridge type cutting time life and stone cutting precision which are inferior to those of the bridge type stone cutting machine for integrally casting the beam.

Disclosure of Invention

The utility model aims at overcoming the defects, and provides a beam structure of a bridge type stone cutting machine with high compressive strength and high tensile strength.

The utility model solves the technical problems by adopting the scheme that: the utility model provides a bridge type stonecutter's crossbeam structure, includes the crossbeam, the crossbeam includes steel sheet frame, locates the embedded pipe that is used for forming transmission shaft installation space in the steel sheet frame and pours the concrete layer between steel sheet frame and embedded pipe, be equipped with prestressed wire along the length direction of crossbeam in the concrete layer, the both ends of crossbeam are equipped with the ground tackle, be equipped with the clamping piece that is used for fixing prestressed wire both ends on the ground tackle.

Further, in order to uniformly improve the tensile strength of the cross beam everywhere; six anchors are respectively arranged at two ends of the cross beam, the six anchors are respectively a first anchor, a second anchor, a third anchor, a fourth anchor, a fifth anchor and a sixth anchor, the first anchor is arranged at the left upper corner of the cross beam, the second anchor is arranged at the right upper corner of the cross beam, the third anchor is arranged at the left lower corner of the cross beam, the fourth anchor is arranged at the right lower corner of the cross beam, the fifth anchor and the sixth anchor are respectively arranged in the middle of the left side of the cross beam and the middle of the right side of the cross beam, an included angle formed between the fifth anchor and the first anchor is 150 degrees, an included angle formed between the fifth anchor and the second anchor and an included angle formed between the fifth anchor and the fourth anchor are 150 degrees, six groups of prestressed steel wires are correspondingly arranged, each group of prestressed steel wires is provided with six prestressed steel wires, and the six prestressed steel wires are circumferentially distributed on the anchors.

Further, in order to enhance the connection strength of the prestressed steel wire and the concrete layer, the tensile strength of the concrete layer is indirectly improved, the cracking of the concrete layer is prevented or delayed, and the use strength and the precision of the concrete layer are ensured; and grooves for enhancing the connection strength of the prestressed steel wire and the concrete layer are formed in the prestressed steel wire.

Further, in order to improve the structural strength of the concrete layer, the compressive strength of the cross beam is improved; and a plurality of deformed steel bars are further arranged in the concrete layer, and the length direction of the deformed steel bars is perpendicular to the length direction of the prestressed steel wires.

Further, in order to pre-tension the steel bars, the steel bars are pre-stressed to form pre-stressed steel bars; the bridge type stone cutting machine beam structure further comprises a pretensioning component which is detachably arranged on the outer side of the anchor and used for pretensioning the prestressed reinforcement, the pretensioning component comprises a hydraulic jack, a pressing sheet and a pretensioning anchor, the pressing sheet is arranged on the outer side of the anchor, the hydraulic jack is arranged on the outer side of the pressing sheet, the pretensioning anchor is arranged on the outer side of the hydraulic jack, and a clamping piece used for fixing the end part of the prestressed reinforcement is arranged on the pretensioning anchor.

Compared with the prior art, the utility model has the following advantages: the utility model can effectively improve the tensile strength and the compressive strength of the cross beam of the bridge cutting machine, adopts the prestressed steel wire to replace the transverse screw steel of the traditional cross beam, stretches the prestressed steel wire by using the hydraulic jack after the welding of the peripheral steel plate frame is finished, and can still maintain certain prestress after the pretension component is removed because the prestressed steel wire has very high tensile strength and certain elastic deformation, after the pretension component is removed, the redundant prestressed steel wire is cut off, the cross beam is poured with concrete through a pouring opening after the pretension is finished, the prestressed steel wire can improve the connection strength with the concrete layer by scoring or forming grooves and the like on the surface, thereby improving the tensile strength of the concrete layer, preventing or delaying the cracking of the concrete layer, ensuring the use strength and the precision, and the pouring opening is designed at one end of the cross beam, and the concrete is poured into the cross beam through the pouring opening after the steel frame of the whole cross beam is welded and fixed, so that the better pouring effect can be achieved.

Drawings

The utility model is further described below with reference to the accompanying drawings in conjunction with examples:

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a view in the direction K of FIG. 1;

FIG. 3 is a cross-sectional view of the structure of the present utility model;

FIG. 4 is a schematic view of the structure of an anchor;

fig. 5 is a schematic view of the structure of the pretensioning assembly.

In the figure: a steel plate frame 1; pouring port 101; an embedded pipe 2; a concrete layer 3; a prestressed steel wire 4; an anchor 5; a clip 6; a screw steel 7; a hydraulic jack 8; tabletting 9; pretensioning the anchor 10.

Detailed Description

The present utility model is described in detail below with reference to the attached drawings and specific examples of the specification:

specific examples: as shown in fig. 1-5, this embodiment provides a beam structure of bridge type stonecutter, including the crossbeam, the crossbeam includes steel sheet frame 1, locates in the steel sheet frame 1 and is used for forming the pre-buried pipe 2 of transmission shaft installation space and pour concrete layer 3 between steel sheet frame 1 and pre-buried pipe 2, and steel sheet frame 1 comprises four curb plates and two end covers that are located the curb plate left and right sides, is equipped with the pouring mouth 101 that is used for pouring concrete to steel sheet frame 1 on one of them end cover, be equipped with prestressing steel wire 4 along the length direction of crossbeam in the concrete layer 3, the both ends of crossbeam are equipped with ground tackle 5, be equipped with on the ground tackle 5 and be used for fixing the clamping piece 6 of prestressing steel wire 4 both ends.

In this embodiment, in order to uniformly increase the tensile strength of the beam everywhere; six anchors 5 are respectively arranged at two ends of the cross beam, the six anchors 5 are respectively a first anchor, a second anchor, a third anchor, a fourth anchor, a fifth anchor and a sixth anchor, the first anchor is arranged at the left upper corner of the cross beam, the second anchor is arranged at the right upper corner of the cross beam, the third anchor is arranged at the left lower corner of the cross beam, the fourth anchor is arranged at the right lower corner of the cross beam, the fifth anchor and the sixth anchor are respectively arranged in the middle of the left side of the cross beam and in the middle of the right side of the cross beam, an included angle formed between the fifth anchor and the first anchor is 150 degrees, an included angle formed between the fifth anchor and the second anchor is 150 degrees, the sixth anchor is correspondingly arranged between the fifth anchor and the fourth anchor, each group of prestressed steel wires 4 is provided with six groups, and six prestressed steel wires 4 are circumferentially distributed on the anchors 5.

In the embodiment, in order to enhance the connection strength of the prestressed steel wire 4 and the concrete layer 3, the tensile strength of the concrete layer 3 is indirectly improved, the cracking of the concrete layer 3 is prevented or delayed, and the use strength and the precision of the concrete layer are ensured; the prestressed steel wire 4 is provided with a groove for enhancing the connection strength of the prestressed steel wire 4 and the concrete layer 3.

In the present embodiment, in order to improve the structural strength of the concrete layer 3, the compressive strength of the cross member is thereby improved; a plurality of deformed steel bars 7 are further arranged in the concrete layer 3, and the length direction of the deformed steel bars 7 is perpendicular to the length direction of the prestressed steel wires 4.

In this embodiment, in order to pre-tension the reinforcing bars, the reinforcing bars are pre-stressed to form pre-stressed reinforcing bars; the bridge type stone cutting machine beam structure further comprises a pretensioning component which is detachably arranged on one side of the beam and used for pretensioning prestressed reinforcement, the pretensioning component comprises a hydraulic jack 8, a pressing piece 9 and a pretensioning anchor 10, the pressing piece 9 is arranged on the outer side of the anchor 5, the hydraulic jack 8 is arranged on the outer side of the pressing piece 9, the pretensioning anchor 10 is arranged on the outer side of the hydraulic jack 8, and a clamping piece 6 used for fixing the end portion of the prestressed steel wire 4 is arranged on the pretensioning anchor 10.

According to the utility model, the tensile strength and the compressive strength of the bridge cutting machine beam can be effectively improved, the prestressed steel wire 4 is adopted to replace the transverse screw steel 7 of the traditional beam, after the welding of the peripheral steel plate frame 1 is finished, the hydraulic jack 8 is used for tensioning the prestressed steel wire 4, as the prestressed steel wire 4 has very high tensile strength and a certain elastic deformation, after the pretension component is removed, the prestressed steel wire 4 can still maintain a certain prestress, after the pretension is finished, the redundant prestressed steel wire 4 is cut off, the beam is poured with concrete through the pouring opening 101 to form the concrete layer 3, the prestressed steel wire 4 can be notched or formed with grooves and the like on the surface, the connection strength with the concrete layer 3 is improved, the tensile strength of the concrete layer 3 is further improved, the cracking of the concrete layer 3 is prevented or delayed, the use strength and the precision are ensured, in addition, the pouring opening 101 is designed at one end of the beam, and after the steel frame of the whole beam is welded and fixed, the concrete is poured into the beam through the pouring opening 101, the better pouring effect can be achieved.

The foregoing description is only exemplary embodiments of the present utility model, and is not intended to limit the scope of the utility model, but rather, the equivalent structures or equivalent processes disclosed in the present specification and the accompanying drawings, or the direct or indirect application in other related technical fields, are all included in the scope of the present utility model.

Claims

1. The utility model provides a bridge type stonecutter's crossbeam structure which characterized in that: the novel transmission shaft comprises a cross beam, wherein the cross beam comprises a steel plate frame, a pre-buried pipe arranged in the steel plate frame and used for forming a transmission shaft installation space, and a concrete layer poured between the steel plate frame and the pre-buried pipe, prestressed steel wires are arranged in the concrete layer along the length direction of the cross beam, anchoring devices are arranged at two ends of the cross beam, and clamping pieces used for fixing two ends of the prestressed steel wires are arranged on the anchoring devices.

2. The bridge stonecutter beam structure of claim 1, wherein: six anchors are respectively arranged at two ends of the cross beam, the six anchors are respectively a first anchor, a second anchor, a third anchor, a fourth anchor, a fifth anchor and a sixth anchor, the first anchor is arranged at the left upper corner of the cross beam, the second anchor is arranged at the right upper corner of the cross beam, the third anchor is arranged at the left lower corner of the cross beam, the fourth anchor is arranged at the right lower corner of the cross beam, the fifth anchor and the sixth anchor are respectively arranged in the middle of the left side of the cross beam and the middle of the right side of the cross beam, an included angle formed between the fifth anchor and the first anchor is 150 degrees, an included angle formed between the fifth anchor and the second anchor and an included angle formed between the fifth anchor and the fourth anchor are 150 degrees, six groups of prestressed steel wires are correspondingly arranged, each group of prestressed steel wires is provided with six prestressed steel wires, and the six prestressed steel wires are circumferentially distributed on the anchors.

3. The bridge stonecutter beam structure of claim 1, wherein: and grooves for enhancing the connection strength of the prestressed steel wire and the concrete layer are formed in the prestressed steel wire.

4. The bridge stonecutter beam structure of claim 1, wherein: and a plurality of deformed steel bars are further arranged in the concrete layer, and the length direction of the deformed steel bars is perpendicular to the length direction of the prestressed steel wires.

5. The bridge stonecutter beam structure of claim 1, wherein: the bridge type stone cutting machine beam structure further comprises a pretensioning component which is detachably arranged on the outer side of the anchor and used for pretensioning the prestressed reinforcement, the pretensioning component comprises a hydraulic jack, a pressing sheet and a pretensioning anchor, the pressing sheet is arranged on the outer side of the anchor, the hydraulic jack is arranged on the outer side of the pressing sheet, the pretensioning anchor is arranged on the outer side of the hydraulic jack, and a clamping piece used for fixing the end part of the prestressed reinforcement is arranged on the pretensioning anchor.