Efficient sawing auxiliary device for hollow anchor rod body and sawing method

Abstract

The invention discloses a hollow anchor rod body efficient saw cutting auxiliary device and a saw cutting method.The auxiliary device comprises a bundling device and a clamping tool, and the bundling device comprises eight connecting blocks; wherein the first connecting block and the second connecting block, the third connecting block and the fourth connecting block, the fifth connecting block and the sixth connecting block, and the seventh connecting block and the eighth connecting block are respectively connected through welding; the second connecting block, the fourth connecting block and the sixth connecting block are respectively connected with a seventh connecting block, a fifth connecting block and an eighth connecting block; the opening angle of the left clamping block and the right clamping block of the clamping tool is equal to the included angle of the first connecting block and the seventh connecting block. By designing the hexagonal bundling auxiliary device, anchor rod bodies are bundled into a regular hexagonal structure; then, a wedge-shaped pressing tool is designed to be matched with a sawing machine hydraulic device to pre-tighten the side faces and the tops of the bundled anchor rod bodies; and then the sawing machine is started for sawing, so that efficient sawing of the rod bodies of the bundled anchor rods can be completed.

Description

Technical Field

[0001] The invention relates to the field of anchoring and supporting, and in particular to a high-efficiency sawing auxiliary device and a sawing method for a hollow anchor rod body, which are used to improve the sawing efficiency of the hollow anchor rod body. Background Art

[0002] Anchor support technology is widely used in coal mines, tunnels, mines and other fields, and the demand for metal anchors is relatively large. According to the actual requirements of the construction project, the anchor rod body needs to be sawed into different lengths. Most sawing machines used for sawing the anchor rod body use top and side hydraulic devices to limit the object to be sawed. Since the surface of the anchor rod body has corrugated threads, the gaps between the rod bodies cannot be compressed during conventional bundling and sawing, and they will rotate during sawing, resulting in teeth breaking, making it impossible to saw in bundles, and the efficiency of single-row sawing of the anchor rod body is very low. Therefore, in order to solve the problem that the anchor rod bodies are directly bundled, the rod bodies cannot be compressed, and the bundled anchor rod bodies cannot be sawed, the present invention designs a tooling to assist in the bundling and sawing of the anchor rod bodies, so that the rod bodies can be compressed against each other without rotation, thereby achieving efficient sawing of the anchor rod bodies. Summary of the invention

[0003] In order to overcome the above-mentioned shortcomings of the prior art, the present invention proposes a high-efficiency sawing auxiliary device and a sawing method for a hollow anchor rod body.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a hollow anchor rod body efficient sawing auxiliary device, including a bundling device and a clamping tool, the bundling device includes eight connecting blocks, wherein: the first connecting block and the second connecting block, the third connecting block and the fourth connecting block, the fifth connecting block and the sixth connecting block, the seventh connecting block and the eighth connecting block are respectively connected by welding; the second connecting block, the fourth connecting block and the sixth connecting block are respectively connected to the seventh connecting block, the fifth connecting block and the eighth connecting block; the opening angle of the left and right clamping blocks of the clamping tool is equal to the angle between the first connecting block and the seventh connecting block.

[0005] The present invention also provides a sawing method based on the hollow anchor rod body efficient sawing auxiliary device, comprising the following steps:

[0006] Step 1, assembling the baling device: determine the number of baling devices required according to the length of the anchor rod, use the U-shaped grooves provided on the seventh connecting block, the fifth connecting block, and the eighth connecting block to adjust the length of each side of the baling device, and use bolts and nuts for pre-tightening;

[0007] Step 2: Put the anchor rod body into the baling device so that the cross section of the rod body put into the baling device is in the shape of a regular hexagon;

[0008] Step 3: Use steel straps to pre-tighten the anchor rods in the bundling device: Wrap the steel straps around the anchor rods for one week, and then use a steel strapping machine to shrink the steel straps to bundle the anchor rods so that the bundled anchor rods still maintain a regular hexagonal shape after being separated from the bundling device;

[0009] Step 4: Anchor rod hoisting: Use a crane to hoist the bundled anchor rod bodies onto the sawing machine roller table and adjust the positions of the bundled anchor rod bodies;

[0010] Step 5: Install the clamping tool: install the clamping tool on the left and right sides of the bundled anchor rod body;

[0011] Step 6: Hydraulic clamping: Start the hydraulic clamping program of the sawing machine to tighten the bundled anchor rods from the left and right sides and the top, so as to apply uniform pressure to each side of the bundled anchor rods;

[0012] Step 7, start sawing: start the sawing program of the sawing machine to saw the bundled anchor rod bodies.

[0013] Compared with the prior art, the present invention has the following positive effects:

[0014] The present invention bundles the anchor rod bodies into a regular hexagonal structure by designing a hexagonal bundling auxiliary device; then pre-tightens the side surfaces of the bundled anchor rod bodies by designing a wedge-shaped pressing tool and cooperating with a hydraulic device of a sawing machine, and then starts the sawing machine to saw, thereby completing efficient sawing of the bundled anchor rod bodies. The specific advantages are as follows:

[0015] 1. The tying device is designed as an adjustable structure, and the number of anchor rod bodies to be bundled is expandable: The sides of the device are designed as adjustable structures. During use, the sides of the tying device can be adjusted to the corresponding length according to the specific number of anchor rod bodies to be bundled. The tying device is suitable for tying different numbers of anchor rod bodies.

[0016] 2. The tooling processing technology is simple and the cost is low: the bundling device and the clamping tooling can be processed by cutting, drilling, tapping, milling U-shaped holes, welding, etc. Each process is simple and efficient, so the processability is good and the production cost is low.

[0017] 3. The bundling method is simple and efficient: put the anchor rods to be bundled into the bundling device one by one, and then use an ordinary steel strapping machine to pre-tighten the rods to complete the bundling.

[0018] 4. The anchor rod body is firmly bundled and clamped with good stability: by using the bundling device, the anchor rod body is bundled into a regular hexagonal structure, and then clamped using the clamping tooling in conjunction with the hydraulic device of the sawing machine, effective pre-tightening is formed between adjacent rod bodies, and the rod body will not rotate during sawing.

[0019] 5. The efficiency of anchor rod bundle sawing is high: the anchor rods are bundled into a regular hexagonal structure and sawed in bundles. A large number of anchor rods can be sawed at one time, which effectively reduces the auxiliary time of anchor rod transportation, sawing position adjustment, anchor clamping, etc., improves the sawing efficiency and reduces the sawing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will now be described by way of example with reference to the accompanying drawings, in which:

[0021] Figure 1 is a front view of the baling device of the present invention;

[0022] Figure 2 is a side view of the baling device of the present invention;

[0023] Figure 3 The schematic diagram of using the tying device to tie anchor rods;

[0024] Figure 4 This is a schematic diagram of the sawing machine pre-tightening and sawing the bundled anchor rods;

[0025] Figure 5 It is a schematic diagram of the traditional bundling method;

[0026] Figure 6 It is a schematic diagram of the bundling method of the present invention;

[0027] Reference numerals in the figures include:

[0028] The first connecting block 1, the second connecting block 2, the third connecting block 3, the fourth connecting block 4, the fifth connecting block 5, the sixth connecting block 6, the seventh connecting block 7, the eighth connecting block 8, bolts 9, nuts 10, steel belts 11, clamping tools 12, side hydraulic devices 13, top hydraulic devices 14, and saw blades 15. DETAILED DESCRIPTION

[0029] The bundling device of the present invention has a structure as follows: Figure 1 and Figure 2As shown, an adjustable structural design is adopted, including components such as connecting blocks and bolts. The connecting blocks are connected by welding, and U-shaped holes are processed inside to form an adjustable regular hexagonal frame. The size of the regular hexagonal frame can be adjusted according to the number of anchor rods to be bundled. Bolts and nuts are used to fix the regular hexagonal frame to form a stable bundling structure. The specific details are as follows: the device consists of a first connecting block 1, a second connecting block 2, a third connecting block 3, a fourth connecting block 4, a fifth connecting block 5, a sixth connecting block 6, a seventh connecting block 7, and an eighth connecting block 8. Among them, the first connecting block 1 and the second connecting block 2, the third connecting block 3 and the fourth connecting block 4, the fifth connecting block 5 and the sixth connecting block 6, the seventh connecting block 7 and the eighth connecting block 8 are respectively connected by welding, and the angle between the two connecting blocks welded together is 120 degrees. Two threaded holes are processed on each of the second connecting block 2, the fourth connecting block 4 and the sixth connecting block 6, and a U-shaped groove is processed in the middle of the fifth connecting block 5, the seventh connecting block 7 and the eighth connecting block 8. The second connecting block 2 and the seventh connecting block 7, the fourth connecting block 4 and the fifth connecting block 5, the sixth connecting block 6 and the eighth connecting block 8 are connected by bolts and can be moved in the U-shaped groove. After adjusting to the appropriate position, the bolts 9 and nuts 10 can be used for pre-tightening to complete the assembly of the baling device. After the assembly is completed, the angles between the first connecting block 1 and the seventh connecting block 7, the seventh connecting block 7 and the eighth connecting block 8, the third connecting block 3 and the fifth connecting block 5, and the fifth connecting block 5 and the eighth connecting block 8 are all 120 degrees.

[0030] Figure 3 The diagram is a diagram of using a tying device to tie anchor rod bodies. First, adjust each connection block to a suitable position and pre-tighten them with bolts and nuts, then put the anchor rod bodies into the tying device one by one, and use a steel strapping machine to shrink the steel strap 11 to pre-tighten the rod bodies, and the tying operation of the rod bodies can be completed.

[0031] Figure 4This is a diagram showing the sawing of bundled anchor rods. First, the anchor rods are placed in the bundling device, and the size of the device is adjusted to arrange the anchor rods in a regular hexagonal shape. Then, the bundled anchor rods are pre-tightened with steel belts to form a solid bundling structure. Next, the bundled anchor rods are transferred to the sawing machine, and the sides and tops of the anchor rods are pre-tightened using the clamping fixture and the hydraulic device of the sawing machine. Finally, the sawing machine is started for sawing, achieving efficient and stable sawing of the anchor rods. The specific details are as follows: the bundled anchor rods are transferred to the sliding roller of the sawing machine, and the clamping fixtures 12 are respectively installed on the sides of the bundled anchor rods. The clamping fixtures are designed to have a 120° opening structure, which can fit well with the sides of the bundled anchor rods. Starting the hydraulic device 13 on the side of the sawing machine can effectively pre-tighten the sides of the bundled anchor rods. The clamping fixture is designed to be an asymmetric structure with a lower opening height at the upper end, that is, the upper opening height h1 is less than the lower opening height h2, and the height difference is not greater than half of the outer diameter of the anchor rod to be sawed, so as to ensure that the hydraulic device 14 at the top of the sawing machine can directly apply load to the uppermost anchor rod without applying load to the clamping fixture 12. Through the above method, the freedom of the bundled anchor rods in four directions can be effectively restricted, and the rod body at the center of the bundle is also firmly pressed. Finally, the sawing program of the sawing machine is started, and the saw blade 15 begins to saw the anchor rods.

[0032] The baling method and sawing method using the auxiliary device of the present invention:

[0033] 1) Bundling method

[0034] a) Assembling the baling device: Determine the number of baling devices required according to the length of the anchor rod. Adjust each side of the baling device to the corresponding length and pre-tighten it with bolts and nuts.

[0035] b) Putting in the anchor rod bodies: Putting a certain number of anchor rod bodies into the baling device in sequence, so that the rod bodies put into the baling device are in the shape of a regular hexagon.

[0036] c) Use steel strapping for pre-tightening: Wrap the steel strapping around the anchor rod, and then use a steel strapping machine to shrink the steel strapping to bundle the anchor rod body so that the bundled anchor rod body still maintains a regular hexagonal shape after being separated from the bundling device.

[0037] 2) Sawing method

[0038] a) Anchor lifting: Use a crane to lift the bundled anchor rods onto the sawing machine roller table and adjust the position of the bundled anchor rods.

[0039] b) Install the clamping fixture: Install the clamping fixture on the side of the bundled anchor rod body.

[0040] c) Hydraulic clamping: Start the hydraulic clamping program of the sawing machine to tighten the sides and top of the bundled anchor rods.

[0041] d) Start sawing: Start the sawing program of the sawing machine to saw the bundled anchor rod bodies.

[0042] Working principle of the present invention:

[0043] When using the traditional bundling method, the anchor rods are arranged freely without constraints and have irregular shapes. Directly bundling with steel belts 11 cannot constrain all the rods on the edge, resulting in gaps between the rods, which cannot be effectively compressed. Figure 5 In addition, if a clamping fixture of a single shape is designed, it cannot adapt to all irregularly shaped bundled rods. The pressure applied by the hydraulic device on the side and top of the sawing machine cannot completely constrain the rod. When sawing, the rod will be rotated and teeth will be broken, and the rod sawing operation cannot be completed.

[0044] The innovation of the present invention is that the anchor rod bodies are first placed in the bundling device, and the anchor rod bodies are closely contacted with each other through the structural restrictions of the bundling device to form a regular hexagonal arrangement, such as Figure 6 In this way, the steel belt can effectively compress the rods on each side, and evenly transfer the pressure brought by the steel belt to the inner rods, so that all the rods are firmly tied, as shown in Fig. Figure 6 At the same time, since the bundled anchor rods are arranged in a regular hexagon, the designed clamping fixture combined with the hydraulic device can apply uniform pressure to each side, such as Figure 6 As shown in c), the stability of the bundled anchor rod bodies is further enhanced to ensure that the anchor rod bodies will not rotate during the sawing process.

Claims

1. A high-efficiency sawing auxiliary device for a hollow anchor rod body, characterized in that: It comprises a bundling device and a clamping tool, wherein the bundling device comprises eight connecting blocks, wherein: the first connecting block and the second connecting block, the third connecting block and the fourth connecting block, the fifth connecting block and the sixth connecting block, the seventh connecting block and the eighth connecting block are respectively connected by welding; the second connecting block, the fourth connecting block and the sixth connecting block are respectively connected to the seventh connecting block, the fifth connecting block and the eighth connecting block; the opening angle of the left and right clamping blocks of the clamping tool is equal to the included angle between the first connecting block and the seventh connecting block.

2. The hollow anchor rod body efficient sawing auxiliary device according to claim 1, characterized in that: The angles between the first connecting block and the second connecting block, the third connecting block and the fourth connecting block, the fifth connecting block and the sixth connecting block, and the seventh connecting block and the eighth connecting block welded together are all 120 degrees.

3. The hollow anchor rod body efficient sawing auxiliary device according to claim 1, characterized in that: The included angles between the first connecting block and the seventh connecting block, the seventh connecting block and the eighth connecting block, the third connecting block and the fifth connecting block, and the fifth connecting block and the eighth connecting block are all 120 degrees.

4. The hollow anchor rod body efficient sawing auxiliary device according to claim 1, characterized in that: U-shaped grooves are provided on the seventh connecting block, the fifth connecting block and the eighth connecting block, and the positions of the second connecting block, the fourth connecting block and the sixth connecting block fixed on the seventh connecting block, the fifth connecting block and the eighth connecting block can be adjusted through the U-shaped grooves.

5. The hollow anchor rod body efficient sawing auxiliary device according to claim 4, characterized in that: The second connecting block, the fourth connecting block and the sixth connecting block are connected to the seventh connecting block, the fifth connecting block and the eighth connecting block respectively through bolts.

6. The hollow anchor rod body efficient sawing auxiliary device according to claim 5, characterized in that: Two threaded holes are respectively processed on the second connecting block, the fourth connecting block and the sixth connecting block.

7. The hollow anchor rod body efficient sawing auxiliary device according to claim 1, characterized in that: The opening angles of the two left and right clamping blocks of the clamping fixture are both 120 degrees.

8. The hollow anchor rod body efficient sawing auxiliary device according to claim 1, characterized in that: The opening height h1 of the upper end of the clamping fixture is smaller than the opening height h2 of the lower end.

9. The hollow anchor rod body efficient sawing auxiliary device according to claim 1, characterized in that: The clamping tool is connected to a hydraulic device on the side of the sawing machine.

10. A sawing method based on the hollow anchor rod body efficient sawing auxiliary device according to claim 1, characterized in that: The steps include: Step 1, assembling the baling device: determine the number of baling devices required according to the length of the anchor rod, use the U-shaped grooves provided on the seventh connecting block, the fifth connecting block, and the eighth connecting block to adjust the length of each side of the baling device, and use bolts and nuts for pre-tightening; Step 2: Put the anchor rod body into the baling device so that the cross section of the rod body put into the baling device is in the shape of a regular hexagon; Step 3: Use steel straps to pre-tighten the anchor rods in the bundling device: Wrap the steel straps around the anchor rods for one week, and then use a steel strapping machine to shrink the steel straps to bundle the anchor rods so that the bundled anchor rods still maintain a regular hexagonal shape after being separated from the bundling device; Step 4: Anchor rod hoisting: Use a crane to hoist the bundled anchor rod bodies onto the sawing machine roller table and adjust the positions of the bundled anchor rod bodies; Step 5: Install the clamping tool: install the clamping tool on the left and right sides of the bundled anchor rod body; Step 6: Hydraulic clamping: Start the hydraulic clamping program of the sawing machine to tighten the bundled anchor rods from the left and right sides and the top, so as to apply uniform pressure to each side of the bundled anchor rods; Step 7, start sawing: start the sawing program of the sawing machine to saw the bundled anchor rod bodies.

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