A steel wire pre-tightening column combined frame press

Abstract

The present invention relates to the technical field of hydraulic press pre-tightening structure, and proposes a steel wire pre-tightening column combined frame type press, comprising a frame, a telescopic cylinder arranged on the frame, and a workbench arranged on the frame and located below the telescopic cylinder, the frame comprising an upper crossbeam and a lower crossbeam, the telescopic cylinder is arranged on the upper crossbeam, the workbench is arranged on the lower crossbeam, and there are a plurality of columns symmetrically arranged at both ends of the upper crossbeam and the lower crossbeam for connecting the upper crossbeam and the lower crossbeam, and the columns are all provided with an annular groove, and the pre-tightening wire is wound in the annular groove for providing pre-tightening force for the upper crossbeam and the lower crossbeam. Through the above technical scheme, the problem that the frame of the existing hydraulic press in the related art has a bulky body and occupies a large area is solved.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic press pre-tightening structures, and in particular to a steel wire pre-tightening column combined frame type press. Background Art

[0002] At present, the hydraulic press structure is divided into: frame type, prestressed tie rod type and prestressed wire winding type.

[0003] In practical applications, prestressed tie rod presses usually increase the total cross-sectional area of ​​bolt tie rods to obtain higher prestress. However, large-tonnage hydraulic presses require larger cross-sectional areas of prestressed tie rods. The increase in cross-sectional area reduces the yield strength of the tie rods, and the cross-sectional force on the rods is uneven. The stress gradually increases from the center to the surface, reducing the use effect of the core of the prestressed tie rods.

[0004] The prestressed wire winding press uses wire to be pre-tightened by winding it from the outside of the frame. Each wire cross section is evenly stressed. Compared with the prestressed tie rod, the prestressed wire material has a large yield strength, high utilization rate and light weight. However, the wire is wound across the semicircular beam, and the pre-tightening force is transmitted from the arc surface of the semicircular beam to the bottom surface of the semicircular beam. The hydraulic cylinder can only be installed on the bottom surface of the upper semicircular beam, which increases the height of the press body.

[0005] The above two pre-tightening methods both have the problem of bulky body and large occupied area, and both have their own advantages and disadvantages. It is difficult to take both advantages into account in actual use. Summary of the invention

[0006] The present invention provides a steel wire pre-tightening column combined frame type press, which solves the problem that the frame of the existing hydraulic press in the related art has a bulky body and occupies a large area.

[0007] The technical solution of the present invention is as follows:

[0008] A wire pre-tightening column combined frame press comprises a frame, a telescopic cylinder arranged on the frame, and a workbench arranged on the frame and located below the telescopic cylinder.

[0009] An upper crossbeam and a lower crossbeam, the telescopic cylinder is arranged on the upper crossbeam, and the workbench is arranged on the lower crossbeam.

[0010] There are several columns, which are symmetrically arranged at both ends of the upper beam and the lower beam, and are used to connect the upper beam and the lower beam. The columns all have an annular groove.

[0011] The pre-tightening wire is wound in the annular groove and is used to provide pre-tightening force for the upper cross beam and the lower cross beam.

[0012] As a further technical solution, the upper crossbeam and the lower crossbeam both have a connecting tube, and both ends of the column have crossbeam mounting holes, and the crossbeam mounting holes are arranged in coordination with the connecting tube.

[0013] As a further technical solution, the column includes

[0014] A winding seat, wherein the beam mounting hole is located on the winding seat,

[0015] There are two baffles, which are arranged at both ends of the winding seat. The winding seat and the two baffles form the annular groove. The baffles are used to prevent the pre-tightening wire from falling off.

[0016] A preload adjusting component is arranged on the winding seat, the preload wire passes through the preload adjusting component, and the preload adjusting component is used to adjust the tension of the preload wire.

[0017] As a further technical solution, the winding seat has an axial hole and a threading hole connected to the axial hole, and the preload wire passes through the axial hole through the threading hole. The preload force adjustment component includes

[0018] A rotating shaft is rotatably arranged in the shaft hole,

[0019] The fastener is arranged on the rotating shaft and rotates with the rotating shaft. The pre-tightening wire is wound on the winding seat, and both ends of the pre-tightening wire are arranged on the fastener. After the rotating shaft rotates, the fastener drives the pre-tightening wire to be wound on the rotating shaft. After winding, the tension of the pre-tightening wire is adjusted.

[0020] A ratchet wheel is arranged on the rotating shaft and rotates with the rotating shaft.

[0021] A pawl is arranged in the shaft hole in cooperation with the ratchet wheel to prevent the rotating shaft from reversing.

[0022] As a further technical solution, the fastener comprises

[0023] The support seat is arranged on the rotating shaft and rotates with the rotating shaft.

[0024] The clamping members are provided with two, which are symmetrically arranged on both sides of the rotating shaft and are both rotatably arranged on the supporting seat, and are respectively used to clamp the two ends of the pre-tightening wire.

[0025] As a further technical solution, the support seat has an avoidance groove, the clamping member is arranged in the avoidance groove, and a wire threading gap is provided between the clamping member and the avoidance groove.

[0026] As a further technical solution, the clamping member includes

[0027] A rotating member is rotatably arranged on the support seat, and the rotating member has two symmetrically arranged sliding grooves.

[0028] A first sliding block, the first sliding block is semicircular and is slidably disposed in one of the sliding grooves,

[0029] The second slider is semicircular and is slidably arranged in another slide groove. The plane end of the first slider and the plane end of the second slider are matched and arranged. After the first slider and the second slider slide, the two plane ends are used to clamp the preload wire end.

[0030] A threaded rod is passed through the ends of the first slider and the second slider. After the threaded rod is rotated, it is used to adjust the distance between the first slider and the second slider. After the first slider and the second slider are clamped, the wire threading gap is located between the two and the rotating shaft.

[0031] As a further technical solution, the winding seat includes

[0032] The first adjustment seat and the second adjustment seat are both provided with the crossbeam mounting hole, the axial hole is located on the first adjustment seat and / or the second adjustment seat, and the two have hooks that cooperate with each other, the first adjustment seat is provided with a slot, and the second adjustment seat is provided with a protrusion, and the slot and the protrusion are provided in cooperation with each other.

[0033] As a further technical solution, the hook has a receiving surface, and the receiving surfaces of the two hooks are matched.

[0034] The working principle and beneficial effects of the present invention are:

[0035] In the present invention, in order to solve the problem that the frame of the existing hydraulic press in the related art has a bulky body and occupies a large area, a steel wire pre-tightening column combined frame type press is designed, specifically, a telescopic cylinder is set on the upper crossbeam, a workbench is set on the lower crossbeam, the two ends of the upper crossbeam and the lower crossbeam are connected by columns, and pre-tightening wires are respectively wound on the columns at both ends of the upper crossbeam and the lower crossbeam. The pre-tightening wire can be a steel wire, and the pre-tightening wire is wound in an annular groove. When the hydraulic press is at rest, the pre-tightening wire generates a pre-tightening force on the column; when the hydraulic press is loaded with rated pressure, the rated pressure of the upper and lower crossbeams of the frame transmitted by the oil cylinder and the workbench is transmitted to the column through the crossbeam, and the column is subjected to the transmitted working load to generate tensile stress, which is offset by the pre-tightening wire wound on the column to avoid the column from being tensilely fractured. This scheme combines the advantages of low height and small size of prestressed tie rod hydraulic press and high utilization rate of uniform force of prestressed wire winding hydraulic press; while using steel wire to increase the preload force of the frame, it solves the problem of high installation height caused by the winding form of existing prestressed wire winding press, and is suitable for promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0037] Figure 1 It is a schematic diagram of the structure of the present invention;

[0038] Figure 2 This is a schematic diagram of the structure of the rotating shaft and the first and second sliders of the present invention;

[0039] Figure 3 for Figure 2 A schematic diagram of the structure of part A;

[0040] Figure 4 This is a schematic diagram of the support base structure of the present invention;

[0041] Figure 5 for Figure 4 Schematic diagram of the structure of part B;

[0042] Figure 6 It is a schematic diagram of the ratchet pawl structure of the present invention;

[0043] Figure 7 for Figure 6 Schematic diagram of the C part structure;

[0044] Figure 8 It is a schematic diagram of the side cross-sectional structure of the present invention;

[0045] Fig. 9 for Figure 8 Schematic diagram of the D part structure;

[0046] Fig.10 This is a schematic diagram of the shaft structure;

[0047] In the figure: 1, frame, 2, telescopic cylinder, 3, workbench, 4, upper beam, 5, lower beam, 6, column, 7, annular groove, 8, preload wire, 9, connecting tube, 10, beam mounting hole, 11, winding seat, 12, baffle, 13, preload force adjustment component, 14, shaft hole, 15, threading hole, 16, rotating shaft, 17, fastener, 18, ratchet, 19, pawl, 20, supporting seat, 21, clamping member, 22, avoidance groove, 23, threading gap, 24, rotating member, 25, slide groove, 26, first slider, 27, second slider, 28, threaded rod, 29, first adjustment seat, 30, second adjustment seat, 31, hook claw, 32, slot, 33, protrusion, 34, receiving surface. DETAILED DESCRIPTION

[0048] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] like Figures 1 to 10 As shown, this embodiment proposes

[0050] A wire pre-tightening column 6 combined frame press, comprising a frame 1, a telescopic cylinder 2 arranged on the frame 1, and a workbench 3 arranged on the frame 1 and located below the telescopic cylinder 2. The frame 1 comprises

[0051] The upper crossbeam 4 and the lower crossbeam 5, the telescopic cylinder 2 is arranged on the upper crossbeam 4, and the workbench 3 is arranged on the lower crossbeam 5,

[0052] There are several columns 6, which are symmetrically arranged at both ends of the upper beam 4 and the lower beam 5, and are used to connect the upper beam 4 and the lower beam 5. The columns 6 have an annular groove 7.

[0053] The pre-tightening wire 8 is wound in the annular groove 7 and is used to provide a pre-tightening force for the upper cross beam 4 and the lower cross beam 5 .

[0054] In this embodiment, in order to solve the problem that the frame of the existing hydraulic press in the related art has a bulky body and occupies a large area, a steel wire pre-tightening column 6 combined frame type press is designed, specifically, the telescopic cylinder 2 is arranged on the upper crossbeam 4, the workbench 3 is arranged on the lower crossbeam 5, the two ends of the upper crossbeam 4 and the lower crossbeam 5 are connected by the column 6, and the pre-tightening wire 8 is respectively wound on the columns 6 at both ends of the upper crossbeam 4 and the lower crossbeam 5. The pre-tightening wire 8 can be a steel wire, and the pre-tightening wire 8 is wound in the annular groove 7. When the hydraulic press is at rest, the pre-tightening wire 8 generates a pre-tightening force on the column 6; when the hydraulic press is loaded with rated pressure, the oil cylinder and the workbench 3 transmit the rated pressure of the upper and lower crossbeams 5 of the frame 1, which is transmitted to the column 6 through the crossbeam, and the column 6 is subjected to the transmitted working load to generate tensile stress, which is offset by the pre-tightening wire 8 wound on the column 6 to prevent the column 6 from being tensilely broken. This solution combines the advantages of low height and small size of the prestressed tie rod hydraulic press and high utilization rate of uniform force of the prestressed wire winding hydraulic press; while using steel wire to increase the prestressing force of the frame 1, it solves the problem of high installation height caused by the winding form of the existing prestressed wire winding press, and is suitable for promotion.

[0055] Furthermore, both the upper crossbeam 4 and the lower crossbeam 5 have a connecting tube 9 , and both ends of the column 6 have crossbeam mounting holes 10 , and the crossbeam mounting holes 10 are arranged in coordination with the connecting tube 9 .

[0056] The function of quick installation is achieved by connecting the tube 9 and the beam mounting hole 10, and at the same time, the two can be connected more closely to increase the structural strength.

[0057] Further, the column 6 includes

[0058] The winding seat 11, the beam mounting hole 10 is located on the winding seat 11,

[0059] There are two baffles 12, which are arranged at both ends of the winding seat 11. The winding seat 11 and the two baffles 12 form an annular groove 7. The baffles 12 are used to prevent the pre-tightening wire 8 from falling off.

[0060] The preload force adjustment component 13 is arranged on the winding seat 11 , and the preload wire 8 passes through the preload force adjustment component 13 . The preload force adjustment component 13 is used to adjust the tension of the preload wire 8 .

[0061] In this embodiment, the pre-tensioning wire 8 is prone to being stretched and lengthened after being used for a period of time, resulting in insufficient pre-tensioning force, which in turn causes a certain degree of damage to the equipment. In order to ensure that the pre-tensioning force is always maintained, a column 6 is provided. By providing a pre-tensioning force adjustment component 13 on the winding seat 11, the pre-tensioning force of the steel wire can be adjusted, such as by adjusting the tension of the pre-tensioning wire 8 by winding the pre-tensioning wire 8 on the pre-tensioning force adjustment component 13. The tension can also be adjusted by re-winding the pre-tensioning wire 8, but direct re-winding is time-consuming and laborious.

[0062] Furthermore, the winding seat 11 has an axial hole 14 and a threading hole 15 connected to the axial hole 14, and the preload wire 8 passes through the axial hole 14 through the threading hole 15. The preload force adjustment component 13 includes

[0063] The rotating shaft 16 is rotatably disposed in the shaft hole 14.

[0064] The fastener 17 is arranged on the rotating shaft 16 and rotates with the rotating shaft 16. The pre-tightening wire 8 is wound on the winding seat 11, and both ends of the pre-tightening wire 8 are arranged on the fastener 17. After the rotating shaft 16 rotates, the fastener 17 drives the pre-tightening wire 8 to be wound on the rotating shaft 16. After winding, the tension of the pre-tightening wire 8 is adjusted.

[0065] The ratchet 18 is disposed on the rotating shaft 16 and rotates with the rotating shaft 16.

[0066] The pawl 19 cooperates with the ratchet wheel 18 to be disposed in the shaft hole 14 to prevent the rotating shaft 16 from reversing.

[0067] In this embodiment, in order to increase the adjustment efficiency, a preload adjustment component 13 is provided. Specifically, the winding seat 11 is first provided on the upper crossbeam 4 and the lower crossbeam 5, and the side baffle 12 is provided on the winding seat 11. The rotating shaft 16 is then rotated and provided on the winding seat 11. The preload wire 8 is then pulled onto the winding seat 11. First, one end of the preload wire 8 is provided on the fastener 17 located on one side of the winding seat 11. The preload wire 8 passes through the threading hole 15 and then bypasses the other side of the winding seat 11. It passes through the threading hole 15 again and enters the shaft hole 14. Finally, the other end is also fixed on the fastener 17. Several preload wires 8 are provided on the fastener 17 in the same way. The setting is completed. After completion, the rotating shaft 16 is rotated, and the pre-tightening wire 8 is wound around the rotating shaft 16 through the fastener 17. The number of turns of the pre-tightening wire 8 wound around the rotating shaft 16 is adjusted by rotation, and then the pre-tightening force is adjusted. The rotation of the rotating shaft 16 can be driven by a motor, or it can be manually rotated by setting a turntable. However, manual rotation is likely to lead to insufficient pre-tightening force. After the rotation is completed, a ratchet 18 is set on the rotating shaft 16, and the ratchet 18 set in the shaft hole 14 prevents the rotating shaft 16 from reversing, resulting in failure of the pre-tightening force. Finally, the baffle 12 on the other side is set on the winding seat 11. Through this solution, the practicality and service life of the equipment can be further improved, and the adjustment efficiency of the pre-tightening wire 8 can be increased.

[0068] Furthermore, the fastener 17 includes

[0069] The support seat 20 is disposed on the rotating shaft 16 and rotates with the rotating shaft 16.

[0070] There are two clamping members 21 , which are symmetrically arranged on both sides of the rotating shaft 16 and are both rotatably arranged on the supporting seat 20 , and the two are used to clamp the two ends of the pre-tightening wire 8 respectively.

[0071] Furthermore, the support seat 20 has an escape groove 22 , the clamping member 21 is disposed in the escape groove 22 , and a threading gap 23 is defined between the clamping member 21 and the escape groove 22 .

[0072] Furthermore, the clamping member 21 includes

[0073] The rotating member 24 is rotatably disposed on the support seat 20, and the rotating member 24 has two symmetrically disposed slide grooves 25.

[0074] The first slider 26 is semicircular and is slidably disposed in a slide groove 25.

[0075] The second slider 27 is semicircular and is slidably arranged in another slide groove 25. The plane end of the first slider 26 and the plane end of the second slider 27 are matched. After the first slider 26 and the second slider 27 slide, the two plane ends are used to clamp the end of the pre-tightening wire 8.

[0076] The threaded rod 28 is passed through the ends of the first slider 26 and the second slider 27. After the threaded rod 28 is rotated, it is used to adjust the distance between the first slider 26 and the second slider 27. After the first slider 26 and the second slider 27 are clamped, the threading gap 23 is located between the two and the rotating shaft 16.

[0077] In the present embodiment, in order to realize the rapid tightening of the pre-tightening wire 8, a structure is designed, specifically, the pre-tightening wire 8 is passed through the wire threading hole 15 and placed between the first slider 26 and the second slider 27, and the pre-tightening wire 8 is clamped by the first slider 26 and the second slider 27 by rotating the threaded rod 28. After clamping, the first slider 26 and the second slider 27 are rotated by rotating the rotating member 24, and the pre-tightening wire 8 is passed through the wire threading gap 23 and first wound around the first slider 26 and the second slider 27 after rotation. After one end of the pre-tightening wire 8 is fixed, the rotating shaft 16 is rotated so that the other clamping member 21 fixes the other end of the pre-tightening wire 8 in the same way, and the other end of the pre-tightening wire 8 is also wound around the other clamping member 21 to realize the fixation of the two ends. After the fixing is completed, the rotating shaft 16 is rotated so that the pre-tightening wires 8 at both ends are wound around the rotating shaft 16 to adjust the pre-tightening force. The efficiency of the adjustment can be further improved through this scheme.

[0078] Further, the winding seat 11 includes

[0079] The first adjustment seat 29 and the second adjustment seat 30 are both provided with a crossbeam mounting hole 10. The axial hole 14 is located on the first adjustment seat 29 and / or the second adjustment seat 30. The two have mutually cooperating hooks 31. The first adjustment seat 29 is provided with a slot 32, and the second adjustment seat 30 is provided with a protrusion 33. The slot 32 and the protrusion 33 are provided in a coordinated manner.

[0080] Furthermore, the hook 31 has a receiving surface 34 , and the receiving surfaces 34 of the two hooks 31 are matched with each other.

[0081] In the present embodiment, in order to prevent the column 6 from being damaged and the upper beam 4 and the lower beam 5 from being damaged after the pre-tightening wire 8 breaks, a winding seat 11 is provided, and the clamping connection is achieved through the hook claw 31 on the first adjustment seat 29 and the second adjustment seat 30. When the pre-tightening wire 8 breaks, it can be clamped in time and connected through the hook claw 31. The hook claw 31 has an arc-shaped bent edge and has a buffering force to avoid damage to the column 6. At the same time, in order to achieve positioning between the first adjustment seat 29 and the second adjustment seat 30, a clamping groove 32 and a protrusion 33 are provided to achieve the guiding positioning function. The safety of the equipment is further improved through this solution.

[0082] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A wire pre-tightening column combined frame press, comprising a frame (1), a telescopic cylinder (2) arranged on the frame (1), and a workbench (3) arranged on the frame (1) and located below the telescopic cylinder (2), characterized in that: The frame (1) comprises An upper crossbeam (4) and a lower crossbeam (5), the telescopic cylinder (2) being arranged on the upper crossbeam (4), and the workbench (3) being arranged on the lower crossbeam (5), There are a plurality of upright posts (6) symmetrically arranged at both ends of the upper crossbeam (4) and at both ends of the lower crossbeam (5), and used to connect the upper crossbeam (4) and the lower crossbeam (5). The upright posts (6) all have an annular groove (7). A pre-tightening wire (8) is wound in the annular groove (7) and is used to provide a pre-tightening force for the upper crossbeam (4) and the lower crossbeam (5). The upper crossbeam (4) and the lower crossbeam (5) both have a connecting tube (9), and both ends of the upright column (6) have crossbeam mounting holes (10), and the crossbeam mounting holes (10) are arranged in cooperation with the connecting tube (9). The column (6) comprises A winding seat (11), wherein the crossbeam mounting hole (10) is located on the winding seat (11). The baffle plates (12) are provided in two pieces and are arranged at both ends of the winding seat (11). The winding seat (11) and the two baffle plates (12) enclose the annular groove (7). The baffle plates (12) are used to prevent the pre-tightening wire (8) from falling off. A preload adjusting component (13) is arranged on the winding seat (11), the preload wire (8) passes through the preload adjusting component (13), and the preload adjusting component (13) is used to adjust the tension of the preload wire (8). The winding seat (11) has an axial hole (14) and a threading hole (15) connected to the axial hole (14); the preload wire (8) passes through the axial hole (14) through the threading hole (15); and the preload force adjustment component (13) comprises A rotating shaft (16) is rotatably disposed in the shaft hole (14). The fastener (17) is arranged on the rotating shaft (16) and rotates with the rotating shaft (16). The pre-tightening wire (8) is wound on the winding seat (11), and both ends of the pre-tightening wire (8) are arranged on the fastener (17). After the rotating shaft (16) rotates, the fastener (17) drives the pre-tightening wire (8) to be wound on the rotating shaft (16). After winding, the tension of the pre-tightening wire (8) is adjusted. A ratchet wheel (18) is arranged on the rotating shaft (16) and rotates along with the rotating shaft (16). A ratchet pawl (19) is arranged in the shaft hole (14) in cooperation with the ratchet wheel (18) and is used to prevent the rotating shaft (16) from rotating in reverse.

2. A wire pre-tightening column combined frame press according to claim 1, characterized in that: The fastener (17) comprises The support seat (20) is arranged on the rotating shaft (16) and rotates along with the rotating shaft (16). The clamping members (21) have two parts, which are symmetrically arranged on both sides of the rotating shaft (16) and are both rotatably arranged on the supporting seat (20), and are respectively used to clamp the two ends of the pre-tightening wire (8).

3. The wire pre-tightening column combined frame press according to claim 2, characterized in that: The support seat (20) has an escape groove (22), the clamping piece (21) is arranged in the escape groove (22), and a threading gap (23) is provided between the clamping piece (21) and the escape groove (22).

4. A wire pre-tightening column combined frame press according to claim 3, characterized in that: The clamping member (21) comprises A rotating member (24) is rotatably disposed on the support seat (20), wherein the rotating member (24) has two symmetrically disposed slide grooves (25). A first sliding block (26), the first sliding block (26) is semicircular and is slidably disposed in one of the sliding grooves (25), The second slider (27) is semicircular and is slidably arranged in another slide groove (25). The plane end of the first slider (26) and the plane end of the second slider (27) are matched with each other. After the first slider (26) and the second slider (27) slide, the two plane ends are used to clamp the end of the pre-tightening wire (8). A threaded rod (28) is inserted through the ends of the first slider (26) and the second slider (27). When the threaded rod (28) is rotated, it is used to adjust the distance between the first slider (26) and the second slider (27). When the first slider (26) and the second slider (27) are clamped, the threading gap (23) is located between the first slider (26) and the second slider (27) and the rotating shaft (16).

5. The wire pre-tightening column combined frame press according to claim 1, characterized in that: The winding seat (11) comprises The first adjustment seat (29) and the second adjustment seat (30) are both provided with the crossbeam mounting hole (10), the shaft hole (14) is located on the first adjustment seat (29) and / or the second adjustment seat (30), and the two have hooks (31) that cooperate with each other, the first adjustment seat (29) is provided with a slot (32), and the second adjustment seat (30) is provided with a protrusion (33), and the slot (32) and the protrusion (33) are provided in a cooperative manner.

6. A wire pre-tightening column combined frame press according to claim 5, characterized in that: The hook (31) has a receiving surface (34), and the receiving surfaces (34) of the two hooks (31) are arranged in a coordinated manner.

Images