Bridge pile foundation rotary drilling hole-forming stone-removing device

Abstract

The utility model discloses a bridge pile foundation rotary digging hole-forming stone removing device, relates to the technical field of bridge construction, and aims to solve the technical problems that a clamping jaw of an existing stone removing device needs to be driven by equipment to be opened, and a wire is prone to being damaged in the stone removing process, and comprises a self-adjusting mechanism and a clamping mechanism arranged on the self-adjusting mechanism. The clamping mechanism comprises a first rotating arm and a second rotating arm, stone taking clamping jaws are arranged at the lower end of the first rotating arm and the lower end of the second rotating arm, the self-adjusting mechanism comprises a metal block in sliding connection with the first rotating arm and the second rotating arm, and limiting plates are symmetrically installed at the lower end of the metal block; and a positioning plate is arranged at the upper end of the metal block. The utility model has the advantages that the clamping jaw can be automatically opened to adapt to the size of a stone, the stone-taking clamping jaw can be stably and accurately operated, the stone-taking precision is improved, additional mechanical driving is not needed, the problem that a lead is easy to damage during deep hole operation is avoided, and the stone-taking efficiency and convenience are greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge construction technical field more specifically, relate to a kind of bridge pile foundation rotary excavating hole stone taking device. BACKGROUND

[0002] Bridge pile foundation rotary excavating hole is a common bridge foundation construction technology. It utilizes the power head of rotary drilling rig to drive drill rod and drill bit to rotate, cuts rock-soil, and forms pile hole by the spiral blade of drill bit to bring drill cuttings out of hole. This technology has the advantages of fast hole-forming speed, high precision, good environmental protection and strong adaptability, and can operate under various geological conditions, such as clay, sandy soil and soft rock, and is widely used in various bridge construction. It is an important foundation construction method to ensure the stability and safety of bridge structure.

[0003] During the bridge construction excavation process, some large-diameter stones may be encountered. In order to prevent wear and tear and damage to the drill bit, the stone needs to be removed. The current stone taking device for bridge pile foundation rotary excavating hole is hoisted into the hole by a rope. The clamping jaws of the stone taking device need to be driven by equipment. If the hole is deep, the equipment needs to be set with a long wire. During use, the long wire is easy to wear and tear, causing damage to the wire, which is not conducive to the stone taking work in the hole. In view of this, we propose a bridge pile foundation rotary excavating hole stone taking device. UTILITY MODEL CONTENT

[0004] The utility model aims to overcome the shortcomings of the prior art, adapt to the actual needs, and provide a bridge pile foundation rotary excavating hole stone taking device to solve the technical problem that the clamping jaws of the current stone taking device need to be driven open by equipment, which is easy to cause damage to the wire during the stone taking process.

[0005] To solve the above technical problems, the utility model provides the following technical scheme: a bridge pile foundation rotary excavating hole stone taking device, comprising a self-adjusting mechanism and a clamping mechanism arranged on the self-adjusting mechanism, the clamping mechanism comprising a first rotating arm and a second rotating arm, the first rotating arm and the second rotating arm being rotatably connected to each other, the lower ends of the first rotating arm and the second rotating arm being provided with stone clamping jaws, the self-adjusting mechanism comprising a metal block slidably connected to the first rotating arm and the second rotating arm, the lower end of the metal block being symmetrically provided with a limiting plate, the upper end of the metal block being provided with a positioning plate, the positioning plate being arranged in an inverted U shape.

[0006] Preferably, the width of the middle position of the first rotating arm is greater than the width of the middle position of the second rotating arm, a rotating opening is formed in the middle position of the first rotating arm, and the middle position of the second rotating arm is rotatably installed in the rotating opening.

[0007] Preferably, the stone taking clamp jaw elongated shaft direction comprises in sequence a wrapping part, a clamping part and a supporting part, the wrapping part is curved outwardly from top to bottom, the clamping part is located at the end of the wrapping part, the supporting part is arranged at the end of the clamping part, and the supporting part is curved outwardly in the form of a hook, a mounting hole is arranged at the lower end of the supporting part, and a ball is arranged in the mounting hole.

[0008] Preferably, the metal block is in the form of an isosceles triangle with the two side end faces being inclined, and the size of the metal block in the horizontal direction gradually increases with the increase of the height from bottom to top.

[0009] Preferably, the upper end of the first rotating arm and the second rotating arm is rotatably arranged with a limiting sliding block, and the inclined surface of the metal block is arranged with a limiting sliding groove.

[0010] Preferably, the upper end of the metal block is equidistantly arranged with a fixing rope, a round hole is arranged at the upper end of the positioning plate, a hoisting rope is arranged in the round hole, and the end of the fixing rope is connected with the hoisting rope.

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

[0012] 1. The metal block structure, the isosceles triangle formed by the two end inclined surfaces of the metal block and the sliding connection of the metal block with the first rotating arm and the second rotating arm are designed, the stone taking clamp jaw can be automatically opened to adapt to the size of the stone, the limiting sliding block and the limiting sliding groove of the inclined surface of the metal block are matched, the movement track of the rotating arm when being opened and folded is accurately limited, the stone taking clamp jaw can be stably and accurately operated, the stone taking precision is improved, the problem that the guide wire is easily damaged in deep hole operation is avoided, the stone taking efficiency and convenience are greatly improved, and the problem that the clamp jaw of the current stone taking device is not convenient to automatically open to adapt to the size of the stone is solved.

[0013] 2. The supporting part and the ball structure are designed, when the device contacts the stone, the supporting part which is curved outwardly in the form of a hook can first adhere to the surface of the stone to provide stable support for the clamp jaw, the setting of the ball can reduce the friction between the supporting part and the stone, the supporting part can be conveniently moved on the stone, the clamp jaw can be opened, the clamp jaw is prevented from shaking and tilting during the opening process, and the stone taking clamp jaw can stably clamp the stone. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a front view structural schematic diagram of the utility model;

[0015] Figure 2 It is a local view structural schematic diagram of the utility model;

[0016] Figure 3The utility model discloses a clamping jaw opening structure schematic view;

[0017] Figure 4 The utility model discloses a clamping jaw structure schematic view;

[0018] Figure 5 The utility model discloses a first use state schematic view;

[0019] Figure 6 The utility model discloses a second use state schematic view.

[0020] Mark explanation: 100, clamping mechanism, 101, first rotating arm, 102, second rotating arm, 103, stone taking clamping jaw, 1031, wrapping part, 1032, clamping part, 1033, support part, 1034, ball, 104, limit sliding block, 200, self -adjusting mechanism, 201, metal block, 202, limit sliding slot, 203, limit board, 204, positioning plate, 205, fixed rope, 206, hoisting rope. Specific implementation

[0021] As Figures 1 to 5 The utility model discloses a bridge pile foundation rotary digging hole stone taking device, including self -adjusting mechanism 200 and the clamping mechanism 100 of self -adjusting mechanism 200 upper setting, clamping mechanism 100 includes first rotating arm 101 and second rotating arm 102, and first rotating arm 101 and second rotating arm 102 are rotatably connected, and the lower end of first rotating arm 101 and second rotating arm 102 is provided with stone taking clamping jaw 103, and self -adjusting mechanism 200 includes the metal block 201 of sliding connection with first rotating arm 101 and second rotating arm 102, and the lower end of metal block 201 is symmetrically installed with limit board 203, and the upper end of metal block 201 is provided with positioning plate 204, and positioning plate 204 is provided with inverted U type. The utility model can make the clamping jaw open automatically and adapt the size of stone block, and the movement track of the opening and folding of rotating arm is accurately limited, so that stone taking clamping jaw 103 can be stably and accurately operated, the stone taking precision is improved, additional mechanical drive is not needed, the problem that the guide wire is easily damaged in deep hole operation is avoided, and the stone taking efficiency and convenience are greatly improved.

[0022] Specifically, the middle position width of the first rotating arm 101 is greater than the middle width of the second rotating arm 102, a rotating port is formed in the middle position of the first rotating arm 101, and the second rotating arm 102 is rotatably installed in the rotating port. The first rotating arm 101 and the second rotating arm 102 are provided, so that the stone taking clamping jaw 103 can be easily opened.

[0023] Further, the extension axis direction of the stone taking clamp jaw 103 sequentially comprises a wrapping part 1031, a clamping part 1032 and a supporting part 1033. The wrapping part 1031 is curved outward from top to bottom in an arc shape. The clamping part 1032 is located at the end of the wrapping part 1031. The supporting part 1033 is arranged at the end of the clamping part 1032, and the supporting part 1033 is curved outward in a hook shape in the extension axis direction. The lower end of the supporting part 1033 is provided with a mounting hole, and a ball 1034 is arranged in the mounting hole. When the device contacts the stone, the supporting part 1033 curved outward in a hook shape can first adhere to the surface of the stone, providing stable support for the clamp jaw. The arrangement of the ball 1034 can reduce the friction between the supporting part 1033 and the stone, and can facilitate the movement of the supporting part 1033 on the stone, so as to cooperate with the opening of the stone taking clamp jaw 103, prevent the clamp jaw from shaking and tilting during the opening process, and enable the wrapping part 1031 and the clamping part 1032 of the stone taking clamp jaw 103 to stably clamp the stone.

[0024] It is worth mentioning that the two side end faces of the metal block 201 are inclined, and the size of the metal block 201 gradually increases in the horizontal direction as the height increases from bottom to top, and the metal block 201 as a whole constitutes an isosceles triangle. The isosceles triangle formed by the two end inclined surfaces of the metal block 201, and the ingenious design of the sliding connection of the metal block 201 with the first rotating arm 101 and the second rotating arm 102, realize the automatic opening of the clamp jaw to adapt to the size of the stone, so that the stone taking clamp jaw 103 can be stably and accurately operated, improve the stone taking precision, and avoid the problem of easy damage of the guide wire during deep hole operation without additional mechanical driving.

[0025] It is worth mentioning that the upper end of the first rotating arm 101 and the second rotating arm 102 is rotatably installed with a limiting sliding block 104, and the inclined surface of the metal block 201 is provided with a limiting sliding groove 202, and the limiting sliding block 104 is slidingly installed in the limiting sliding groove 202. The limiting sliding block 104 cooperates with the limiting sliding groove 202 of the inclined surface of the metal block 201 to accurately limit the movement trajectory of the opening and closing of the rotating arm.

[0026] It is worth noting that the upper end of the metal block 201 is equidistantly provided with a fixed rope 205, a round hole is formed in the upper end of the positioning plate 204, a hoisting rope 206 is arranged in the round hole, and the end of the fixed rope 205 is connected with the hoisting rope 206. The metal block 201 is connected with the hoisting rope 206 in the round hole of the inverted U-shaped positioning plate 204 through the equidistant fixed rope 205. This connection mode ensures the stability of the device during hoisting, facilitates the accurate hoisting of the device to the specified position in the pile hole by the construction personnel, prevents the device from shaking and deviating during hoisting, and ensures the safe and efficient development of the stone taking operation.

[0027] Working principle: the embodiment provides a bridge pile foundation rotary excavating hole stone taking device, when using, first through hoisting rope 206 hoists and transports the whole device to the position of bridge pile foundation hole needing to take stone, the setting of fixed rope 205 ensures the stability during the device descending, when the device descends to the height of stone, first stone clamping jaw 103 supports the device (such as Figure 5 ), with hoisting rope 206 continuing to descend, metal block 201 will continue to descend and extrude first rotating arm 101 and second rotating arm 102 due to self weight, and metal block 201 can continue to descend due to the setting of the inclined surface of both sides of metal block 201, first rotating arm 101 and second rotating arm 102 are automatically rotated and opened by the sliding connection with metal block 201 and the inclined surface of both sides of metal block 201, the hook-shaped arc of support part 1033 bending outward cooperates with ball 1034, which can facilitate the opening of two stone clamping jaws 103, so that two stone clamping jaws 103 can be opened to adapt to the size of stone, and the device will descend to make stone clamping jaw 103 located outside the stone (such as Figure 6 ), then hoisting equipment pulls hoisting rope 206 upward, metal block 201 will move upward under stress, limiting sliding block 104 will slide downward in limiting sliding groove 202, first rotating arm 101 and second rotating arm 102 will rotate inward due to the inclined surface of metal block 201, so that first rotating arm 101 and second rotating arm 102 drive stone clamping jaw 103 to close inward, tightly clamp the stone, finally hoist the whole device together with the stone out of the pile foundation hole, complete the stone taking work.

[0028] The embodiment of the utility model discloses the better embodiment, but is not limited to this, the ordinary skill of the art, easily understand the spirit of the utility model according to the above embodiment, and make different extension and change, but as long as do not depart from the spirit of the utility model, all are within the protection scope of the utility model.

Claims

1. A bridge pile foundation rotary excavating stone-removing device, characterized in that, The utility model relates to a self -adjusting mechanism (200) and the clamping mechanism (100) of setting on the self -adjusting mechanism (200), the clamping mechanism (100) includes first rotary arm (101) and second rotary arm (102), first rotary arm (101) and second rotary arm (102) are rotatably connected each other, and the lower end of first rotary arm (101) and second rotary arm (102) is provided with stone clamping jaw (103), the self -adjusting mechanism (200) includes the metal block (201) of sliding connection with first rotary arm (101) and second rotary arm (102), the lower end of metal block (201) is symmetrically installed with limit plate (203), and the upper end of metal block (201) is provided with locating plate (204), and the locating plate (204) is provided with inverted U type.

2. The bridge pile foundation rotary excavating stone taking device according to claim 1, characterized in that, The middle position width of the first rotary arm (101) is greater than the middle width of the second rotary arm (102), and the first rotary arm (101) is provided with a rotating port in the middle position.

3. The bridge pile foundation rotary excavating stone taking device according to claim 2, characterized in that, The stone clamping jaw (103) includes a wrapping portion (1031), a clamping portion (1032), and a supporting portion (1033) in sequence along the extension axis of the stone clamping jaw (103), the wrapping portion (1031) is curved outward from top to bottom, the clamping portion (1032) is located at the end of the wrapping portion (1031), the supporting portion (1033) is arranged at the end of the clamping portion (1032), and the supporting portion (1033) is curved outward in the form of a hook along the extension axis, and a mounting hole is arranged at the lower end of the supporting portion (1033).

4. The bridge pile foundation rotary excavating stone taking device according to claim 3, characterized in that, The metal block (201) is in the form of an isosceles triangle as a whole.

5. The bridge pile foundation rotary excavating stone taking device according to claim 4, characterized in that, The upper end of the first rotary arm (101) and the second rotary arm (102) is rotatably provided with a limiting sliding block (104), and the inclined surface of the metal block (201) is provided with a limiting sliding groove (202), and the limiting sliding block (104) is slidably arranged in the limiting sliding groove (202).

6. The bridge pile foundation rotary excavating stone taking device according to claim 5, characterized in that, The upper end of the metal block (201) is equidistantly provided with a fixing rope (205), a round hole is arranged at the upper end of the locating plate (204), a hoisting rope (206) is arranged in the round hole, and the end of the fixing rope (205) is connected with the hoisting rope (206).

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