Segmented anchor grouting device for hot cast anchor inhaul cable

Abstract

The utility model relates to a segmented anchor grouting device for a hot cast anchor inhaul cable, and belongs to the technical field of bridge inhaul cables. Comprising a casting anchorage device, the casting anchorage device comprises a mold body and a side casting body, and an inner cavity of the mold body is divided into a first casting cavity and a second casting cavity which are arranged up and down; a communicating opening is formed in the side face of the small end of the mold body and connected with a side pouring body, and a side pouring gate is formed in the top of the side pouring body; an inner cavity of the side pouring body serves as a side pouring channel, the side pouring gate and the side pouring channel are communicated with the first casting cavity, and a leaking stoppage piece is arranged at the small end of the mold body. The casting anchorage device comprises two casting parting parts which are symmetrically arranged, and positioning holes and connecting holes are formed in the casting parting parts respectively. Positioning pins are inserted into the positioning holes; bolts are arranged in the connecting holes in a penetrating mode. The problem of insufficient casting caused by a long alloy liquid flowing path is avoided, and the long-term creep resistance and fatigue resistance of the anchoring casting body are improved.

Description

Technical Field

[0001] This utility model relates to a segmented anchoring device for hot-cast anchor cables, belonging to the field of bridge cable technology. Background Technology

[0002] In bridges and building structures, anchorages at both ends of load-bearing parallel steel wire cables are generally secured using hot-cast anchors or cold-cast anchors. Hot-cast anchors involve casting molten low-melting-point zinc-based alloy into the anchorage. After solidification, the alloy bonds with the high-strength steel wire to form an alloy anchor casting, thereby achieving anchorage of the high-strength steel wire.

[0003] The conventional method for hot-cast cable anchors involves completely filling the anchor cup with a zinc-copper alloy (98% zinc, 2% copper). This zinc-copper alloy possesses good strength and corrosion resistance. However, it has the following drawbacks: 1. Poor resistance to long-term creep; 2. Due to the long flow path of the alloy liquid after it is poured from the large end of the anchor cup, insufficient alloy casting at the small end is likely; 3. The high hardness of the alloy results in poor fatigue resistance of the cable wire at the small end of the anchor cone cavity. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a segmented anchoring device for hot-cast anchor cables, which avoids the problem of insufficient casting due to the long flow path of the alloy liquid, and improves the long-term creep resistance and fatigue resistance of the anchor casting.

[0005] The technical solution adopted by this utility model to solve the above problems is as follows: a segmented anchoring device for hot-cast anchor cables, including a casting anchor, the casting anchor including a mold body and a side casting body, the inner cavity of the mold body is divided into a first casting cavity and a second casting cavity arranged vertically, the first casting cavity being located below the second casting cavity; a connecting port is opened on the side of the small end of the mold body, the connecting port connecting to the side casting body, and a side casting port is provided on the top of the side casting body; the inner cavity of the side casting body serves as a side casting channel, the side casting port and the side casting channel are connected to the first casting cavity, and a leak-stopping component is provided at the small end of the mold body; a first casting body is provided in the first casting cavity; and a second casting body is provided in the second casting cavity.

[0006] The casting anchor consists of two symmetrically arranged casting partings, each with a positioning hole and a connecting hole. A positioning pin is inserted into the positioning hole, and a bolt is inserted into the connecting hole to achieve a fixed connection between the two casting partings.

[0007] The parting surface of the cast anchor is located on the longitudinal axis of the cable wire bundle.

[0008] The leak-sealing component is a leak-sealing clamp.

[0009] The wall thickness of the mold body is 10-30mm, and the internal cavity size of the mold body matches the internal cavity size of the cable anchor cup.

[0010] The first casting is made of a low-melting-point zinc-based alloy, and the second casting is made of a zinc-copper alloy, a zinc-copper-aluminum alloy, or a zinc-copper-titanium alloy.

[0011] Compared with existing technologies, the advantages of this utility model are as follows: A segmented casting device for hot-cast anchor cables, wherein the first and second casting bodies are combined to form a conical alloy casting body, avoids the problem of insufficient casting due to the long flow path of the alloy liquid, and improves the long-term creep resistance and fatigue resistance of the anchor casting body. The use of a sealing plate or sealing material prevents alloy liquid leakage, ensuring casting quality. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of a segmented anchoring device for hot-cast anchor cables according to an embodiment of the present invention;

[0013] Figure 2 This is a top view of a segmented anchoring device for hot-cast anchor cables according to an embodiment of the present invention;

[0014] Figure 3 This is a schematic diagram of the casting process;

[0015] Figure 4 A schematic diagram of the anchoring alloy casting after casting is completed, cooling is achieved, and the gate residue is cleaned up.

[0016] Figure 5 A schematic diagram showing the completed assembly of the anchor cup and the anchoring alloy casting.

[0017] In the figure, 1 is the casting anchor, 101 is the mold body, 102 is the side casting body, 103 is the connecting port, 2 is the bolt, 3 is the positioning pin, 4 is the leak-stopping clamp, 5 is the second casting body, 6 is the first casting body, 7 is the cable wire bundle, and 8 is the anchor cup. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0019] like Figure 1 , 2As shown in this embodiment, a segmented anchoring device for hot-cast anchor cables includes a casting anchor 1. The casting anchor 1 includes a mold body 101 and a side-casting body 102. The inner cavity of the mold body 101 is divided into a first casting cavity and a second casting cavity arranged vertically, with the first casting cavity located below the second casting cavity. A connecting port 103 is opened on the side of the small end of the mold body 101, connecting the connecting port 103 to the side-casting body 102. The top of the side-casting body 102 is provided with a side-casting port. The inner cavity of the side-casting body 102 serves as a side-casting channel, and the side-casting port, the side-casting channel, and the first casting cavity are connected. A leak-stopping clamp 4 is provided at the small end of the mold body 101 for leak-stopping during casting.

[0020] The cast anchor 1 consists of two symmetrically arranged cast parting pieces. Each parting piece has positioning holes and multiple connecting holes. The two partsing pieces align and a positioning pin 3 is inserted into the positioning hole, ensuring precise assembly. After assembly, bolts 2 are inserted into the connecting holes to securely connect the two partsing pieces. The parting surface of the cast anchor is located on the longitudinal axis of the cable.

[0021] The aforementioned sealing clamp can be replaced by filling the space between the inner hole of the small end of the mold body and the outer diameter of the cable with sealing material.

[0022] The wall thickness of the mold body is 10-30mm, and the internal cavity size of the mold body is designed and matched according to the internal cavity size of the cable anchor cup.

[0023] Operation process:

[0024] like Figure 3 As shown, step one: install the casting anchor on the end of the cable wire bundle 7 that has been split and dispersed, and fill the gap between the inner hole of the small end of the mold body and the outer diameter of the cable wire bundle with sealing material or install a sealing clamp.

[0025] Step 2: Erect the assembled and fixed cast anchor and cable end so that the cable end (i.e. the large end of the cast anchor) is arranged vertically upward.

[0026] Step 3: Pour the first molten alloy liquid into the side gating body through the side gating gate and then into the first casting cavity. Observe the liquid level height at the side gating gate during pouring. Control the liquid level height in the first casting cavity according to the principle of equal height of communicating vessels. Stop pouring when the liquid level height at the side gating gate reaches the designated position, thereby forming the first casting body 6.

[0027] Step 4: Pour the second molten alloy liquid into the second casting cavity through the large end of the mold body until the alloy liquid level in the second casting cavity reaches the designated position, then stop pouring to form the second casting body 5.

[0028] like Figure 4As shown, step five: after cooling, remove the casting anchor and clean up the solidified residue formed in the side casting channel to obtain a conical alloy casting composed of a first casting body and a second casting body.

[0029] like Figure 5 As shown, step six: Assemble the anchor cup 8, which is pre-attached to the cable, by fitting it into the conical alloy casting. Insert the conical alloy casting into the inner cavity of the anchor cup, ensuring a tight fit. Due to the shape matching between the conical alloy casting and the inner cavity of the anchor cup, a robust anchoring structure is formed after assembly.

[0030] The first molten alloy uses pure zinc or a low-melting-point zinc-based alloy such as zinc-tin. The second molten alloy uses a zinc-copper alloy, a zinc-copper-aluminum alloy, or a zinc-copper-titanium alloy.

[0031] The first and second castings are combined to form a conical alloy casting, which avoids the problem of insufficient casting due to the long flow path of the molten alloy, and improves the long-term creep resistance and fatigue resistance of the anchor casting. Leakage of the molten alloy is prevented by sealing plates or sealing materials, ensuring casting quality.

[0032] In addition to the above embodiments, this utility model also includes other implementation methods. All technical solutions formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of this utility model.

Claims

1. A segmented anchoring device for hot-cast anchor cables, characterized in that: The system includes a casting anchor, which comprises a mold body and a side-casting body. The mold body has an internal cavity divided into a first casting cavity and a second casting cavity arranged vertically, with the first casting cavity located below the second casting cavity. A connecting opening is provided on the side of the small end of the mold body, which connects to the side-casting body. The top of the side-casting body has a side-sprue. The internal cavity of the side-casting body serves as a side-casting channel, and the side-sprue and the side-sprue channel are connected to the first casting cavity. A leak-stopping component is provided at the small end of the mold body. A first casting body is provided in the first casting cavity, and a second casting body is provided in the second casting cavity.

2. A segmented grouting device for hot cast anchor cables as claimed in claim 1, characterized in that: The casting anchor consists of two symmetrically arranged casting partings, each with a positioning hole and a connecting hole. A positioning pin is inserted into the positioning hole, and a bolt is inserted into the connecting hole to achieve a fixed connection between the two casting partings.

3. A segmented grouting device for hot cast anchor cables as claimed in claim 2, characterized in that: The parting surface of the cast anchor is located on the longitudinal axis of the cable wire bundle.

4. A segmented grouting device for hot cast anchor cables as claimed in claim 1, characterized in that: The leak-sealing component is a leak-sealing clamp.

5. A segmented anchoring device for hot cast anchoring of cables according to claim 1, characterized in that: The wall thickness of the mold body is 10-30mm, and the internal cavity size of the mold body matches the internal cavity size of the cable anchor cup.

6. A segmented grouting device for hot cast anchor cables as claimed in claim 1, characterized in that: The first casting is made of a low-melting-point zinc-based alloy, and the second casting is made of a zinc-copper alloy, a zinc-copper-aluminum alloy, or a zinc-copper-titanium alloy.

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