Pipe twisting device and pipe twisting machine
By designing a limit mechanism and a reversing valve control system on the pipe rolling machine, automatic pipe rolling operation is achieved, solving the problems of complex operation and high cost of existing pipe rolling machines, and improving construction efficiency and adaptability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-04-10
AI Technical Summary
Existing pipe rolling machines require manual control of the sleeve angle during long-term shutdowns or concrete pouring, which is complicated to operate, affects construction efficiency, and has high equipment costs, making it difficult to meet various construction needs.
A pipe-rolling device was designed, comprising a clamping mechanism, a first pipe-rolling cylinder, a second pipe-rolling cylinder, a linkage mechanism, and a slide box. A limit mechanism is used to control the reversing valve to achieve automatic pipe-rolling operation. The pipe-rolling angle can be adjusted by adjusting the limit mechanism. Combined with electromagnetic, hydraulic, or pneumatic reversing valves, an automatic pipe-rolling function can be achieved.
It simplifies the pipe rolling operation and improves construction efficiency. It has a simple, stable and reliable structure, low equipment cost, and can adapt to various pipe rolling operation needs.
Smart Images
Figure CN224106408U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of tube rubbing device and tube rubbing machine, belong to engineering machinery technical field. BACKGROUND
[0002] Full casing method is one of pile foundation hole-forming methods, with good hole-forming quality, high single-pile bearing capacity, no slurry pollution in dry hole operation and other advantages, especially suitable for hole-forming operation of quicksand, silt and underground river and other geology. The construction equipment of full casing method mainly includes two categories of rotary drilling rig and tube rubbing machine. The rotary drilling rig is used to drive the casing during casing construction, and the casing construction diameter and depth are greatly limited due to the small torque and pressure capacity of the rotary drilling rig. Auxiliary equipment such as a vibration hammer and a crane is often needed for casing construction, which has problems such as high equipment investment, complicated construction process, and poor economy. The tube rubbing machine is an engineering equipment specially used for full casing bored pile construction. It uses two tube rubbing oil cylinders to reciprocate and stretch to twist the casing, so that the casing bottom cutter cuts the rock-soil and drills the casing into the stratum. Compared with the rotary drilling rig, the tube rubbing machine has the characteristics of simple structure, easy to use, and low price. The existing tube rubbing machine needs to rely on the operator to control the rotating casing according to the casing construction depth to select a reasonable tube rubbing angle to shake the casing to prevent the casing from being stuck and difficult to start the pull-out operation. The shaking pipe operation process is complex, which not only needs to rely on the construction experience of workers, but also needs the operator to manually operate the hydraulic reversing valve control handle for a long time and at a high frequency, which is easy to cause fatigue of the workers and affect the construction efficiency. SUMMARY
[0003] The utility model aims at overcoming the above-mentioned shortcomings, providing a kind of tube rubbing device and tube rubbing machine, with automatic shaking pipe function, and tube rubbing angle is adjustable, simple structure, stable and reliable, low equipment cost, high construction efficiency.
[0004] The utility model aims at overcoming the above-mentioned shortcomings, providing a kind of tube rubbing device and tube rubbing machine, with automatic shaking pipe function, and tube rubbing angle is adjustable, simple structure, stable and reliable, low equipment cost, high construction efficiency.
[0005] A tube rubbing device includes a clamping mechanism, a first tube rubbing oil cylinder, a second tube rubbing oil cylinder, a connecting rod mechanism and a sliding box. An arc-shaped first protective cover and a second protective cover are respectively arranged on the piston rods of the first tube rubbing oil cylinder and the second tube rubbing oil cylinder. A reversing valve for controlling the synchronous extension and retraction of the first tube rubbing oil cylinder and the second tube rubbing oil cylinder is arranged on the cylinder body of the first tube rubbing oil cylinder or the second tube rubbing oil cylinder. A limiting mechanism for controlling the reversing action of the reversing valve is arranged on the first protective cover or the second protective cover corresponding to the oil cylinder.
[0006] Further, the limiting mechanism comprises mounting holes symmetrically arranged at two ends of the first protective cover or the second protective cover, limiting rods respectively mounted in the mounting holes at the two ends, and a shifting rod arranged on the reversing valve and used for controlling the reversing of the reversing valve.
[0007] Further, the mounting holes are symmetrically arranged in N groups, and the distance between the mounting holes in adjacent groups is S.
[0008] Further, the N value is 4-6, and the S value is 30-50 mm.
[0009] Further, the reversing valve is one of an electromagnetic reversing valve, a hydraulic reversing valve and a pneumatic reversing valve.
[0010] Further, the rod cavity and the rodless cavity of the first pipe rolling oil cylinder are connected in parallel with the rodless cavity and the rod cavity of the second pipe rolling oil cylinder, and then connected in parallel with the oil outlet ends of the first multi-way valve and the second multi-way valve; the two control ends of the first multi-way valve and the second multi-way valve are connected in parallel and then connected with the output end of the reversing valve.
[0011] Further, the two control ends of the first multi-way valve and the second multi-way valve are connected in parallel through the first switching valve and the second switching valve.
[0012] Further, the sliding box comprises a frame, a second pin shaft horizontally arranged at two sides of the frame, a first pin shaft vertically arranged in the frame, and a sliding plate rotatably sleeved on the second pin shaft.
[0013] A pipe rolling machine is installed with any one of the pipe rolling devices.
[0014] Compared with the prior art, the pipe rolling device has the following beneficial effects:
[0015] The pipe rolling device comprises a limiting mechanism arranged on the protective cover of the pipe rolling oil cylinder, the limiting mechanism is used for flexibly adjusting the telescopic stroke of the pipe rolling oil cylinder, changing the pipe rolling angle, and meeting different pipe laying operation requirements; the limiting mechanism is used for automatically controlling the reversing of the reversing valve, realizing automatic pipe rolling operation, making the pipe rolling operation more convenient, improving the construction efficiency, and meeting various pipe laying operation requirements.
[0016] The pipe rolling machine has the advantages that the telescopic amplitude of the pipe rolling oil cylinder is limited by adjusting the limiting mechanism, the pipe rolling angle is adjusted, the pipe rolling operation is automatic, the structure is simple, the device is stable and reliable, the equipment cost is low, and the construction efficiency is high. BRIEF DESCRIPTION OF DRAWINGS
[0017] Fig. 1 Fig. 1 is a structural schematic view of the pipe rolling device.
[0018] Fig. 2 It is the schematic view of the clamping mechanism structure of the pipe rubbing device of the utility model.
[0019] Fig. 3 It is the front view of the first protective cover of the pipe rubbing device of the utility model.
[0020] Fig. 4 It is the schematic view of the first protective cover structure of the pipe rubbing device of the utility model.
[0021] Fig. 5 It is the schematic view of the automatic pipe rubbing hydraulic circuit of the pipe rubbing device of the utility model.
[0022] Fig. 6 It is the schematic view of the sliding box structure of the pipe rubbing device of the utility model.
[0023] Fig. 7 It is the schematic view of the sliding box frame structure of the pipe rubbing device of the utility model.
[0024] Among them:
[0025] Clamping mechanism 1, first pipe rubbing oil cylinder 2, second pipe rubbing oil cylinder 3, connecting rod mechanism 4, sliding box 5, first multi-way valve 6, second multi-way valve 7;
[0026] First protective cover 21, reversing valve 22, second protective cover 31, frame 51, sliding plate 52, first pin shaft 53;
[0027] Mounting hole 211, limiting rod 212, push rod 221, first switching valve 222, second switching valve 223, second pin shaft 511. Specific implementation Example 1:
[0028] See Figs. 1-7 The pipe rubbing device of the utility model contains clamping mechanism 1, first pipe rubbing oil cylinder 2, second pipe rubbing oil cylinder 3, connecting rod mechanism 4 and sliding box 5, and the first protective cover 21 and the second protective cover 31 of arc shape are respectively arranged on the piston rod of first pipe rubbing oil cylinder 2 and second pipe rubbing oil cylinder 3;
[0029] The reversing valve 22 for controlling the synchronous extension and retraction of the first pipe rolling oil cylinder 2 and the second pipe rolling oil cylinder 3 is arranged on the cylinder body of the first pipe rolling oil cylinder 2 or the second pipe rolling oil cylinder 3, and the limiting mechanism for controlling the reversing action of the reversing valve 22 is arranged on the first protective cover 21 or the second protective cover 31 corresponding to the oil cylinder. The reversing valve 22 is one of an electromagnetic reversing valve, a hydraulic reversing valve or a pneumatic reversing valve; if the reversing valve 22 is installed on the cylinder body of the first pipe rolling oil cylinder 2, the limiting mechanism is correspondingly installed on the first protective cover 21; if the reversing valve 22 is installed on the cylinder body of the second pipe rolling oil cylinder 3, the limiting mechanism is correspondingly installed on the second protective cover 31;
[0030] In the embodiment, the limiting mechanism comprises mounting holes 211 symmetrically arranged at both ends of the first protective cover 21, limiting rods 212 respectively installed in the mounting holes 211 at both ends, and a shifting rod 221 arranged on the reversing valve 22 for controlling the reversing of the reversing valve 22; the mounting holes 211 are threaded holes, and the limiting rods 212 are installed in the mounting holes 211 by screwing; the shifting rod 221 is limited by the limiting rods 212 at both ends, so as to control the reversing of the reversing valve 22. In other embodiments, the mounting holes 211 can also be arranged on the second protective cover 31, and the corresponding reversing valve 22 is installed on the cylinder body of the second pipe rolling oil cylinder 3;
[0031] The mounting holes 211 are symmetrically arranged in N groups, the distance between the mounting holes in adjacent groups is S, and the limiting rods 212 are correspondingly installed in any one of the mounting holes 211 in the first group to the Nth group; the value of N is 4-6, and the value of S is 30-50 mm. When the limiting rods 212 are installed in the mounting holes 211 in the first group, the distance between the two limiting rods 212 is the largest, the stroke of the pipe rolling oil cylinder is the largest, the pipe rolling angle is the largest, and the sleeve can be driven to be pressed down and pulled up; when the limiting rods 212 are installed in the mounting holes 211 in the Nth group, the distance between the two limiting rods 212 is the shortest, the stroke of the pipe rolling oil cylinder is the smallest, the pipe rolling angle is the smallest, and the pipe rolling operation can be performed, so as to prevent the sleeve from being trapped and difficult to be pulled up when the machine stops for a long time or waits for concrete pouring. The position of the mounting hole 211 can be flexibly selected according to the actual construction operation situation, and the pipe rolling angle can be adjusted;
[0032] The rod cavity and the rodless cavity of the first pipe rolling oil cylinder 2 are connected in parallel with the rodless cavity and the rod cavity of the second pipe rolling oil cylinder 3 respectively, and then connected in parallel with the oil outlet ends of the first multi-way valve 6 and the second multi-way valve 7, so as to ensure that the extension and retraction actions of the two pipe rolling oil cylinders are opposite and simultaneously and synchronously operated at the same speed; the two control ends of the first multi-way valve 6 and the second multi-way valve 7 are connected in parallel and then connected with the output end of the reversing valve 22, which is controlled by the reversing valve 22; the two control ends of the first multi-way valve 6 and the second multi-way valve 7 are connected in parallel through the first switching valve 222 and the second switching valve 223 respectively, so that the two-way hydraulic oil of the first multi-way valve 6 and the second multi-way valve 7 is combined and synchronously driven to drive the two pipe rolling oil cylinders, which greatly improves the pipe rolling driving capacity and the pipe rolling torque and meets the construction requirements of various casing operations.
[0033] The sliding box 5 comprises a frame 51, second pin shafts 511 horizontally arranged on both sides of the frame 51, a first pin shaft 53 vertically arranged in the frame 51, and a sliding plate 52 rotatably sleeved on the second pin shaft 511; the sliding box 5 is slidably arranged on the base fixing seat of the pipe rolling machine through the sliding plate 52; the connecting rod mechanism 4 is hingedly connected between the clamping mechanism 1 and the first pin shaft 53 of the sliding box 5; when the clamping mechanism 1 tightly grips the casing and performs reciprocating pipe rolling action, the connecting rod mechanism 4 generates a pulling action on the clamping mechanism 1, so that the clamping mechanism 1 is more stable and reliable when subjected to the reciprocating and torsional pipe rolling of the first pipe rolling oil cylinder 2 and the second pipe rolling oil cylinder 3. Embodiment 2:
[0034] Referring to Figs. 1-2 The pipe rolling machine disclosed by the utility model is provided with the pipe rolling device disclosed in embodiment 1, the first mounting seat 11 of the hinged pipe rolling oil cylinder and the second mounting seat 12 of the hinged connecting rod mechanism 4 are arranged on the clamping mechanism 1, a variable-diameter block is installed through the bolt 13, different variable-diameter blocks can be installed according to casings with different diameters, and the construction requirements can be met; the extension and retraction range of the pipe rolling oil cylinder is limited through the adjusting limiting mechanism, and then the pipe rolling angle is adjusted, the pipe rolling function is automatic, the structure is simple, stable and reliable, the equipment cost is low, and the construction efficiency is high.
[0035] In addition, it should be noted that the above specific embodiments are only an optimized scheme of the patent, and any changes or improvements made by the person skilled in the art according to the above concept are within the protection scope of the patent.
Claims
1. A pipe twister device comprising a clamping mechanism (1), a first pipe twister cylinder (2), a second pipe twister cylinder (3), a connecting rod mechanism (4) and a sliding box (5), characterized in that: First and second arc-shaped protective covers (21) and (31) are respectively arranged on the piston rods of the first and second pipe rolling oil cylinders (2) and (3); a reversing valve (22) for controlling the synchronous extension and retraction of the first and second pipe rolling oil cylinders (2) and (3) is arranged on the cylinder body of the first or second pipe rolling oil cylinder (2) or (3), and a limiting mechanism for controlling the reversing action of the reversing valve (22) is arranged on the first or second protective cover (21) or (31) corresponding to the oil cylinder.
2. The tube wringing device of claim 1, wherein: The limiting mechanism comprises mounting holes (211) symmetrically arranged at both ends of the first or second protective cover (21) or (31), limiting rods (212) respectively mounted in the mounting holes (211) at both ends, and a shifting rod (221) arranged on the reversing valve (22) for controlling the reversing of the reversing valve (22); the shifting rod (221) is limited by the limiting rods (212) at both ends, thereby achieving the reversing control of the reversing valve (22).
3. A tube wringing device according to claim 2, wherein: The mounting holes (211) are symmetrically arranged in N groups, and the distance between the mounting holes in adjacent groups is S; the limiting rods (212) are correspondingly mounted in any one of the mounting holes (211) in the first group to the Nth group.
4. A tube wringing device according to claim 3, wherein: The value of N is 4-6, and the value of S is 30-50 mm.
5. The tube wringing device of claim 1, wherein: The reversing valve (22) is one of an electromagnetic reversing valve, a hydraulic reversing valve and a pneumatic reversing valve.
6. The tube wringing device of claim 1, wherein: The rod cavity and the rodless cavity of the first pipe rolling oil cylinder (2) are connected in parallel with the rodless cavity and the rod cavity of the second pipe rolling oil cylinder (3), and then connected in parallel with the oil outlet ends of the first and second multi-way valves (6) and (7); the two control ends of the first and second multi-way valves (6) and (7) are connected in parallel and then connected with the output end of the reversing valve (22).
7. A tube wringing device according to claim 6, wherein: The two control ends of the first and second multi-way valves (6) and (7) are connected in parallel through the first and second switching valves (222) and (223).
8. The tube wringing device of claim 1, wherein: The sliding box (5) comprises a frame (51), second pin shafts (511) horizontally arranged at both sides of the frame (51), a first pin shaft (53) vertically arranged in the frame (51), and a sliding plate (52) rotatably sleeved on the second pin shaft (511).
9. A pipe threading machine characterized by: The pipe rolling device of any one of claims 1-8 is installed.