Overall tensioning tool for steel strand stay cable

Abstract

The utility model discloses a steel strand stay cable integral tensioning tool, the steel strand stay cable integral tensioning tool comprises a tensioning support frame, a tensioning rod and a center hole jack, one end of the tensioning support frame is connected with a connecting disc, the tensioning support frame surrounds outside a protective end cover and a support cylinder, the protective end cover is provided with a positioning hole, and the center hole jack is connected with the tensioning rod. One end of the tensioning rod extends into the positioning hole, a step is formed at one end of the tensioning rod and used for being tightly attached to the end face of the protective end cover, and the center hole jack shell is installed on the tensioning supporting frame. The integral tensioning tool for the steel strand stay cable solves the problem that in the prior art, a heavy protection end cover cannot be sleeved with a heavy supporting cylinder.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tensioning tool, in particular to a whole tensioning tool for steel strand cable-stayed rope. BACKGROUND

[0002] Chinese patent discloses a cable-stayed rope with an application number of CN202120299495.8, which comprises a rope body, a fastening device, a shockproof device, a sealing device, a clamping device, a protective end cover, an anchor plate, a support cylinder, a protective cylinder and a protective sleeve, the protective sleeve surrounds all the rope bodies, one end of the protective sleeve is connected with the protective cylinder, the protective cylinder is connected to the anchor plate through the support cylinder, the side of the anchor plate away from the protective cylinder is covered by the protective end cover, the connecting part of the protective cylinder and the protective sleeve is provided with the fastening device, the fastening device is used for binding all the rope bodies together, the shockproof device for the rope body to pass through is installed in the end of the protective cylinder close to the protective sleeve, the sealing device is installed in the other end of the protective cylinder, the sealing device is used for preventing water from entering into the support cylinder, the support cylinder, the anchor plate and the protective end cover are all passed through by the rope body, the first anticorrosion layer is filled in the gap between the protective end cover and the rope body. The connecting disc is fixed on the outer wall of the support cylinder.

[0003] Although the cable-stayed rope solves the problem of poor corrosion resistance in the prior art, the cable-stayed rope still has the following disadvantages: during assembly, the support cylinder provided with the anchor plate and the clamping device needs to be pushed close to each other, at this time, the clamping device has clamped the steel strand, therefore, the support cylinder is particularly heavy, and how to insert the relatively heavy support cylinder into the relatively heavy protective end cover is an urgent problem to be solved. CONTENT OF THE UTILITY MODEL

[0004] The utility model provides a whole tensioning tool for steel strand cable-stayed rope, which solves the problem that the relatively heavy support cylinder cannot be sleeved on the relatively heavy protective end cover in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] The utility model discloses a kind of steel strand stay cable integral tensioning tool, the steel strand stay cable integral tensioning tool is used for steel strand stay cable, the steel strand stay cable includes: cable body, fastening device, protective cylinder, support cylinder, anchor plate, clamping device, protective end cover, compression plate and connecting disc, cable body is at least three or more, all cable body is fastened by fastening device, fastening device is installed in protective cylinder one end, protective cylinder other end is connected to support cylinder one end, anchor plate is connected in support cylinder middle part, anchor plate is provided with the perforation for each cable body to pass through, clamping device is installed in perforation, clamping device is used to be clamped cable body under the inner wall extrusion of perforation, the end of support cylinder close to protective cylinder projects with connecting disc, the connecting place of support cylinder and anchor plate is covered by protective end cover, the end of anchor plate that protrudes support cylinder is connected with compression plate, and clamping device is pressed in anchor plate by compression plate;The steel strand stay cable integral tensioning tool includes: tensioning support frame, tensioning rod and through core jack, tensioning support frame one end is connected with connecting disc, tensioning support frame is surrounded in protective end cover and support cylinder outside, protective end cover is provided with positioning hole, positioning hole is for tensioning rod one end to extend, tensioning rod one end forms step, and step is used to be close to protective end cover end face, and through core jack shell is installed on tensioning support frame.

[0007] Preferably, a position indicating mechanism is installed on the tensioning rod, an elastic member is connected between the position indicating mechanism and the tensioning rod, the first end of the position indicating mechanism is used to be close to the compression plate, a notch is provided on the end of the tensioning rod away from the protective end cover, the second end of the position indicating mechanism is extended into the notch, and the elastic member is used to make the second end of the position indicating mechanism away from the notch.

[0008] Preferably, the position indicating mechanism is a rod-shaped structure.

[0009] Preferably, the tensioning support frame includes a first support ring, a second support ring and an intermediate connecting rib, the first support ring is connected with the connecting disc, the first support ring is connected with the second support ring through at least three intermediate connecting ribs, and the through core jack shell is installed on the second support ring.

[0010] Preferably, a connecting piece is connected on the connecting disc, the connecting piece is connected on the connecting disc through a screw, the connecting piece limits the first support ring from being separated from the connecting disc, and limits the first support ring from rotating relative to the connecting disc.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] Before tensioning, the anchor plate is sleeved outside the cable body, and the anchor plate has been connected with the supporting cylinder, there is a connecting bolt passing through the anchor plate, one end of the connecting bolt is located in the supporting cylinder and has been screwed with the first nut. When tensioning, first, the clamping device is sleeved outside the cable body, and the clamping device is placed in the anchor plate; then, the pressing plate is sleeved outside the connecting bolt; then, the tensioning support frame in the whole tensioning tool of the steel strand cable is connected with the connecting disc; then, the through jack is started to extend, the push ring connected with the tensioning rod in the through jack is pressed on the pressing plate, the pressing plate presses the clamping device in the anchor plate, as the clamping device is pressed into the anchor plate, since the hole provided in the anchor plate for the clamping device to extend into is an anchor hole, the anchor hole is a conical table structure, the more the clamping device is pressed into the anchor plate, the more the clamping device clamps the cable body, so that the anchoring strength is ensured; then, the through jack is started to retract, there is enough space between the push ring on the tensioning rod and the pressing plate for the protective end cover to be placed; then, the through jack is started to extend, the tensioning rod of the through jack passes through the protective end cover, the step on the tensioning rod presses the protective end cover outside the anchor plate; finally, the anchor plate is connected with the protective end cover by using the external bolt structure, or the protective end cover is welded with the anchor plate. In the above process, the length of the tensioning support frame is adjusted, so that there is enough space between the push ring and the pressing plate for the protective end cover to be placed, without disassembling the tensioning support frame to cause operation trouble and long operation time, then the protective end cover can be ensured to be pressed outside the anchor plate, and the operation difficulty caused by manually keeping the position of the protective end cover when connecting the protective end cover with the anchor plate is avoided.

[0013] Other advantages, objects and features of the present application will be apparent from the following description, and will be understood by those skilled in the art. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic view of the whole tensioning tool of the steel strand cable.

[0015] Figure 2 It is Figure 1 It is an enlarged view of the tensioning support frame.

[0016] The drawings show: cable body 11, fastening device 12, protective cylinder 13, supporting cylinder 14, anchor plate 15, clamping device 16, protective end cover 17, pressing plate 18, connecting disc 19, tensioning support frame 21, first supporting ring 211, second supporting ring 212, intermediate connecting rib 213, tensioning rod 22, through jack 23, push ring 24, in-place indicating mechanism 31, elastic member 32. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, purposes and effects of the present application more clear and easy to understand, the present application will be further described below in combination with the drawings and specific embodiments:

[0018] As Figure 1 and Figure 2 shown, the utility model discloses a kind of steel strand cable-stayed cable overall tensioning tool, the steel strand cable-stayed cable overall tensioning tool is used for steel strand cable-stayed cable, the steel strand cable-stayed cable includes: cable body 11, fastening device 12, protective cylinder 13, support cylinder 14, anchor plate 15, clamping device 16, protective end cap 17, compression plate 18 and connecting disc 19, cable body 11 is at least three or more, all cable body 11 is fastened by fastening device 12, fastening device 12 is installed in protective cylinder 13 one end, protective cylinder 13 other end is connected to support cylinder 14 one end, anchor plate 15 is connected in the middle part of support cylinder 14, anchor plate 15 is provided with the perforation for each cable body 11 to pass through, clamping device 16 is installed in the perforation, clamping device 16 is used to be clamped cable body 11 in the inner wall of perforation extrusion, the end of support cylinder 14 close to protective cylinder 13 protrudes with connecting disc 19, the connecting place of support cylinder 14 and anchor plate 15 is covered by protective end cap 17, the end of anchor plate 15 protruding from support cylinder 14 is connected with compression plate 18, and compression plate 18 is pressed in anchor plate 15 with clamping device 16;The steel strand cable-stayed cable overall tensioning tool includes: tensioning support frame 21, tensioning rod 22 and through-hole jack 23, tensioning support frame 21 one end is connected with connecting disc 19, and tensioning support frame 21 is surrounded outside protective end cap 17 and support cylinder 14, and protective end cap 17 is provided with positioning hole, and the positioning hole is used for the one end of tensioning rod 22 to extend into, and the one end of tensioning rod 22 forms step, and the step is used to be attached to the end face of protective end cap 17, and the shell of through-hole jack 23 is installed on tensioning support frame 21.

[0019] Positioning indicating mechanism 31 is installed on tensioning rod 22, and elastic member 32 is connected between positioning indicating mechanism 31 and tensioning rod 22, and the first end of positioning indicating mechanism 31 is used to be attached to compression plate 18, and the one end of tensioning rod 22 away from protective end cap 17 is provided with notch, and the second end of positioning indicating mechanism 31 is extended into the notch, and elastic member 32 is used to make the second end of positioning indicating mechanism 31 away from the notch. By observing whether positioning indicating mechanism 31 emerges from the notch, whether compression plate 18 is pressed in place can be observed.

[0020] Positioning indicating mechanism 31 is rod-shaped structure.

[0021] Tensioning support frame 21 includes: first support ring 211, second support ring 212 and intermediate connecting rib 213, first support ring 211 is connected with connecting disc 19, and first support ring 211 is through at least three intermediate connecting ribs 213, and the shell of through-hole jack 23 is installed on second support ring 212. First support ring 211 realizes the connection with connecting disc 19, and second support ring 212 provides installation base for through-hole jack 23.

[0022] A connecting piece is connected on the connecting disc 19, the connecting piece is connected on the connecting disc 19 through screw, the connecting piece limits the first support ring 211 from being separated from the connecting disc 19 and limits the first support ring 211 from rotating relative to the connecting disc 19.

[0023] Finally, it is explained that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the technical solutions of the present application. They should be covered in the scope of the claims of the present application.

Claims

1. A whole tensioning tool for steel strand cable-stayed cable, characterized in that, The steel strand cable overall tensioning tool is used for a steel strand cable, and the steel strand cable comprises a cable body, a fastening device, a protection cylinder, a support cylinder, an anchor plate, a clamping device, a protection end cover, a pressing plate and a connecting disc, the cable body is at least three or more, all the cable bodies are fastened by the fastening device, the fastening device is installed at one end of the protection cylinder, the other end of the protection cylinder is connected to one end of the support cylinder, the anchor plate is connected in the middle of the support cylinder, the anchor plate is provided with a through hole for each cable body to pass through, the clamping device is installed in the through hole and used for clamping the cable body under the extrusion of the inner wall of the through hole, the end of the support cylinder close to the protection cylinder is provided with the connecting disc, the connecting position of the support cylinder and the anchor plate is covered by the protection end cover, the end of the anchor plate protruding from the support cylinder is connected with the pressing plate, and the pressing plate presses the clamping device in the anchor plate. The steel strand cable overall tensioning tool comprises a tensioning support frame, a tensioning rod and a through jack, one end of the tensioning support frame is connected with the connecting disc, the tensioning support frame surrounds the outside of the protection end cover and the support cylinder, the protection end cover is provided with a positioning hole, the positioning hole is used for the tensioning rod to extend into one end, one end of the tensioning rod is formed with a step, the step is used for abutting against the end surface of the protection end cover, and the through jack shell is installed on the tensioning support frame.

2. The steel strand stay cable integrated tensioning tool according to claim 1, characterized in that, A position indicating mechanism is installed on the tensioning rod, an elastic member is connected between the position indicating mechanism and the tensioning rod, the first end of the position indicating mechanism is used for abutting against the pressing plate, the end of the tensioning rod away from the protection end cover is provided with a notch, the notch is used for the second end of the position indicating mechanism to extend into, and the elastic member is used for making the second end of the position indicating mechanism away from the notch.

3. The steel strand stay cable integrated tensioning tool according to claim 2, characterized in that, The position indicating mechanism is a rod-shaped structure.

4. The steel strand stay cable integrated tensioning tool according to claim 1, characterized in that, The tensioning support frame comprises a first support ring, a second support ring and an intermediate connecting rib, the first support ring is connected with the connecting disc, the first support ring is connected with the second support ring through the at least three intermediate connecting ribs, and the through jack shell is installed on the second support ring.

5. The steel strand stay cable integrated tensioning tool according to claim 4, characterized in that, A connecting piece is connected on the connecting disc, the connecting piece is connected on the connecting disc through a screw, the connecting piece limits the first support ring from being separated from the connecting disc and limits the first support ring from rotating relative to the connecting disc.

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