Integral frame type oil cylinder transmission miniature tunnel traction drilling machine

Abstract

The utility model belongs to the technical field of traction drilling machines, and particularly relates to an integral frame type oil cylinder transmission miniature tunnel traction drilling machine which comprises a machine frame and is characterized by further comprising a push-pull mechanism, a rotating torque power device, a clamping device, a leveling tensioning device, an oil cylinder rear support, a push-pull oil cylinder, a front jacking force base and a special drilling tool which are arranged on the machine frame. Main operation functions of the device are achieved through the ingenious structural design, meanwhile, the boundary dimension of a traditional mechanism is reduced, the machining and manufacturing cost is reduced, the construction efficiency is improved, and the device can be conveniently used in a narrow space. The equipment can be placed in a 1360 mm square foundation pit and a DN1500 round foundation pit to construct at least, and the limit placement size is broken through under the condition that large torque and large push-pull force output are guaranteed; and meanwhile, the push-pull mechanism is provided with a multi-stage push-pull stroke increasing mechanism, so that double setting of the moving stroke is realized within the minimum mounting distance, the construction efficiency is improved, and the structural space occupation ratio is saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of traction drilling rigs, and in particular relates to an integral frame type oil cylinder driven micro tunnel traction drilling rig. Background Art

[0002] With the continuous development and progress of social science and technology, the urban population is becoming increasingly dense, and the construction of national basic pipeline networks is becoming increasingly intensive. In some cities, the pipelines laid earlier need to be replaced or re-laid due to insufficient excess diameter in the initial design, and some pipelines have reached the end of their service life or are damaged. Due to the dense urban population, the large number of vehicles and pedestrians on the roads, and the relatively small design size of indoor pipes, construction has brought huge difficulties and challenges. The existing mature trenchless horizontal directional drilling technology can no longer meet the needs. Therefore, in order to solve the problem of replacing old pipelines in the city, it is urgent to design and manufacture underground construction equipment that can be used in confined spaces. This project has huge market prospects. Utility Model Content

[0003] To solve the problems raised in the above background technology, the utility model provides an integral frame type oil cylinder driven micro tunnel traction drilling rig, comprising a frame, a push-pull mechanism arranged on the frame, a rotary torque power device, a clamping device, a leveling and tightening device, an oil cylinder rear support, a push-pull oil cylinder, a front jacking seat, and a special drilling tool.

[0004] As an integral frame type oil cylinder driven micro tunnel traction drilling rig of the utility model, preferably, the frame is a frame type welded structural member, which is used to support the entire machine equipment and provide a forward and backward moving track for the push-pull mechanism.

[0005] As an integral frame type oil cylinder driven micro tunnel traction drilling rig of the utility model, preferably, the push-pull mechanism includes a push-pull base, a stop clamping plate, upper and lower wear-resistant plates and a lower hook plate. The push-pull base is a plate welded component, and a fixed platform of a rotary torque power device is installed in the middle part of the push-pull base. Two through holes are designed on both sides of the push-pull base, which can provide moving space for the cylinder body of the push-pull oil cylinder.

[0006] As an integral frame type oil cylinder driven micro tunnel traction drilling rig of the utility model, preferably, the stop clamping plate is used to be installed in conjunction with the push-pull oil cylinder, and the stop clamping plate is placed in the clamping groove of the push-pull base to achieve locking of the oil cylinder barrel and the push-pull base. Two step planes are processed on both sides of the bottom surface of the push-pull base for installing the upper wear-resistant plate, so that the upper wear-resistant plate contacts the upper plane of the frame, avoiding friction damage caused by direct contact between the push-pull base and the frame during relative movement.

[0007] As the utility model discloses a whole frame type oil cylinder transmission micro tunnel traction drill, preferably, the lower wear plate is placed in the lower hook plate groove, the upper surface of the lower hook plate coincides with the lower plane of the upper wear plate and is fixed in the base screw mounting hole by screws, the upper plane of the lower wear plate coincides with the lower guide rail of the frame, and the lower hook plate is used to limit the up-down and left-right position of the push-pull mechanism on the frame, so that the push-pull mechanism can only move forward and backward on the frame rail.

[0008] As the utility model discloses a whole frame type oil cylinder transmission micro tunnel traction drill, preferably, the rotary torque power device is driven by a low-speed large-torque plunger motor, and the gripper device is provided with a buckle device for disassembling drill rods and drilling tools.

[0009] As the utility model discloses a whole frame type oil cylinder transmission micro tunnel traction drill, preferably, the leveling and tensioning device is used for leveling the frame, fixing the frame in the front-rear direction and tensioning adjustment, the leveling and tensioning device is composed of a base, a shaft head and an adjusting screw rod, one end of the shaft head is provided with a ball head structure and is matched with a ball head groove of the base, so that the shaft head can rotate in the groove of the base, the other end of the shaft head is provided with an internal thread structure, the thread of the adjusting screw rod can be screwed into the shaft head and is locked at the end, so that the shaft head and the screw rod can rotate together.

[0010] The rear support of the oil cylinder comprises a supporting vertical plate, a wear plate and left-right limiting plates, the inner hole of the supporting vertical plate is matched with a positioning step at the rear end of the push-pull oil cylinder cylinder, and is fixed and mounted at the rear end of the push-pull oil cylinder cylinder by screws, the upper surface of the wear plate coincides with the bottom surface of the supporting vertical plate, and the lower surface coincides with the upper surface of the frame guide rail, the left-right limiting plates are mounted on the two side surfaces of the supporting vertical plate and coincide with the two side surfaces of the frame guide rail, so that the push-pull oil cylinder moves linearly along the frame guide rail under the action of the rear support, the push-pull oil cylinder provides linear motion power of the equipment, the end surface of the cylinder of the push-pull oil cylinder is arranged on the surface of the frame guide rail, the ear ring of the oil cylinder piston rod of the push-pull oil cylinder is fixedly mounted on the front jacking seat by a pin shaft, the cylinder body of the push-pull oil cylinder is provided with a positioning groove, and the positioning groove is matched with a stop clamping plate to limit the relative position of the oil cylinder cylinder and the push-pull base.

[0011] The front jacking seat is welded and fixed to the front end of the frame, and the ear ring of the push-pull oil cylinder is fixed, so that the oil cylinder ear ring position is fixed, and the cylinder does linear extension and contraction, the special drilling tool comprises a drill rod, a guide drill bit and a cutting expansion head, the drill rod is a special rod tool processed from thick-walled pipe material, the rod body is provided with male and female tapered threads at both ends, the threads mainly play the roles of torque transmission and tension, a flat screw is processed on the outer circle of the rod body close to the male and female buckle end, and is used to lock the clamping plate, a guide carbon rod is arranged in the guide drill bit, is used for guiding hole construction before new pipeline laying, and the cutting expansion head is welded with a cutting alloy cutter head to cut the stratum in stages, so that corresponding circular holes are formed.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] The device is mainly used for realizing the operation function, reducing the size of the traditional mechanism, reducing the manufacturing cost, improving the construction efficiency, and being convenient to use in a small space. BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the utility model, and constitute a part of the specification, and are used to explain the utility model together with embodiments of the utility model, and do not constitute the limitation to the utility model.

[0015] Figure 1 It is the structural schematic diagram of the utility model;

[0016] In the drawing:

[0017] Frame; 2, push-pull mechanism; 3, rotating torque power device; 4, gripper device; 5, leveling tension device; 6, oil cylinder rear support; 7, push-pull oil cylinder; 8, front top force seat; 9, special drilling tool. DETAILED DESCRIPTION

[0018] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. EMBODIMENT

[0019] As Figure 1 indicated;

[0020] A whole frame type oil cylinder transmission micro tunnel traction drill machine, comprising a frame 1.

[0021] In this embodiment: to solve the technical problems existing in the prior art, as disclosed in the above BACKGROUND, "due to the large urban population density, the road traffic and pedestrian are more, and the indoor pipe diameter design size is relatively small, which brings great difficulties and challenges to the construction, and the existing mature non-excavation horizontal directional drilling technology cannot meet the demand, therefore, in order to solve the problem of replacing the old pipeline in the city, it is urgent to design and manufacture the underground construction equipment applicable to the narrow space, and the project has great market prospect", in combination with the actual use, this problem is obviously a real problem and is relatively difficult to solve, therefore, in order to solve this technical problem, an overall frame type oil cylinder transmission micro tunnel traction drill is provided on the basis.

[0022] As Figure 1 shown in the figure;

[0023] In combination with the above, the push-pull mechanism 2, the rotary torque power device 3, the gripper device 4, the leveling and tensioning device 5, the oil cylinder rear support 6, the push-pull oil cylinder 7, the front jacking force seat 8 and the special drill 9 arranged on the rack 1 are further included.

[0024] In an optional embodiment, the rack 1 is a frame type tailor-welded structure, which is mainly characterized by supporting the whole machine equipment and providing the moving track of the push-pull mechanism 2.

[0025] In an optional embodiment, the push-pull mechanism 2 mainly includes a push-pull base, a stop clamping plate, an upper wear plate and a lower hook plate; the push-pull base is a tailor-welded plate, a fixed platform of the rotary torque power device 3 is designed to be installed in the middle part of the base, both sides of the base are designed as two through holes, which can provide moving space for the cylinder body of the push-pull oil cylinder 7, the stop clamping plate is used to be installed in cooperation with the push-pull oil cylinder 7, the stop clamping plate is placed in the clamping groove of the push-pull base, so as to lock the cylinder barrel and the push-pull base; two stepped planes are processed on the bottom surface of the push-pull base, which are used to install the upper wear plate, so that the upper wear plate is in contact with the upper plane of the rack 1, avoiding the friction damage caused by the direct contact between the push-pull base and the rack 1 during the relative movement; the lower wear plate is placed in the groove of the lower hook plate, the upper surface of the lower hook plate is coincided with the lower plane of the upper wear plate and is fixed in the screw installation hole of the base by screws, the upper plane of the lower wear plate is coincided with the lower guide rail of the rack 1, and the push-pull mechanism 2 is limited in the up-down and left-right directions on the rack 1 by the lower hook plate, so that it can only move forward and backward on the rack track.

[0026] In an optional embodiment, the rotary torque power device 3 is characterized by adopting a low-speed large-torque plunger motor to drive, which provides ten thousand two hundred newton-meters of torsional force for the equipment, drives the circumferential movement of the drill pipe and drill, and thus makes the reaming drill perform the cutting movement on the soil layer or the old pipeline.

[0027] In an optional embodiment, the clamp device 4 is a special unhooking device for disassembling the drill rod drill tool. During the construction jacking or back dragging process, the drill rod drill tool needs to be connected to or disassembled from the machine one by one. The drill rod drill tool is connected through a taper specification thread. Due to the reaction force generated in the construction torsional cutting process, the threads of the two drill rods are screwed tighter and tighter. Artificial disassembly with ordinary tools is not easy and the efficiency is low. The clamp device can be easily disassembled.

[0028] In an optional embodiment, the leveling tensioning device 5 is used to level the rack 1 and fix the tension adjustment in the front and rear directions of the rack 1. The leveling tensioning device 5 is composed of a base, a shaft head and an adjusting screw rod. One end of the shaft head is a ball head structure matched with the ball head groove of the base to enable the shaft head to rotate in the groove of the base. The other end of the shaft head is an internal thread structure. The thread of the adjusting screw rod can be screwed into the internal thread of the shaft head and the end is dead, so that the shaft head and the screw rod can rotate together. Therefore, when the adjusting screw rod moves relative to the threaded fixed plate welded on the rack 1, the lifting of the base is driven, and the function of adjusting the height of the rack 1 is achieved.

[0029] In an optional embodiment, the oil cylinder rear support 6 includes a support stand, a wear plate and left and right limiting plates. The inner hole of the support stand is matched with the rear end positioning step of the cylinder barrel of the push-pull oil cylinder 7, and is fixedly installed on the rear end of the cylinder barrel of the push-pull oil cylinder 7 by screws. The upper surface of the wear plate coincides with the bottom surface of the support stand, and the lower surface coincides with the upper surface of the rack guide rail. The left and right limiting plates are installed on the two side surfaces of the support stand and coincide with the two side surfaces of the rack 1 guide rail, so that the push-pull oil cylinder 7 moves linearly along the rack guide rail under the action of the rear support 6.

[0030] In an optional embodiment, the push-pull oil cylinder 7 provides linear motion power for the equipment. The cylinder barrel end face of the push-pull oil cylinder 7 is installed on the rack 1 guide rail surface together with the rear support 6. The oil cylinder piston rod ear ring is fixedly installed on the front top force seat 8 through a pin shaft. The push-pull oil cylinder 7 cylinder body is designed and processed with a positioning groove. The oil cylinder groove is used in cooperation with a stop clamping plate to limit the relative position of the oil cylinder cylinder and the push-pull base.

[0031] In an optional embodiment, the front top force seat 8 is welded and fixed to the front end of the rack 1 to fix the push-pull oil cylinder 7 ear ring, so that the oil cylinder ear ring position is fixed and the cylinder barrel moves linearly.

[0032] In an optional embodiment, the special drilling tool 9 is divided into a drill rod, a guide drill bit and a cutting expansion head; the drill rod is a special rod tool processed by thick-walled pipe, the rod body is processed with male and female taper threads at both ends, the threads mainly play a role of transmitting torque and tension, the outer circle of the rod body is processed with a flat end near the male and female buckle end, which is used to lock the clamping plate; the guide drill bit is internally placed with a control direction carbon rod, which is used for hole guiding construction before new pipeline laying; the cutting expansion head is welded with a cutting alloy cutter head, which is used for cutting stratum in stages to form a corresponding size of circular hole, facilitating pipeline dragging.

[0033] The ingenious structural design realizes the main operation function of the device, reduces the size of the traditional mechanism, reduces the processing manufacturing cost, improves the construction efficiency, and makes the device convenient to use in a small space. The device can be placed in a square foundation pit with a size of 1360mm and a circular foundation pit with DN1500 for construction. In the case of ensuring large torque and large pushing and pulling force output, the limit placement size is broken through. Meanwhile, the pushing and pulling mechanism is designed with multiple pushing and pulling stroke increasing mechanisms, so that double setting moving stroke can be realized in the smallest installation distance, the construction efficiency is improved, and the structure space proportion is saved.

[0034] Finally, it should be noted that: the above is only the preferred embodiment of the utility model, and is not used to limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced equivalently. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. An integral frame type oil cylinder driven micro tunnel traction drilling rig, comprising a frame (1), characterized in that: It also includes a push-pull mechanism (2), a rotary torque power device (3), a clamping device (4), a leveling and tightening device (5), a cylinder rear support (6), a push-pull cylinder (7), a front jacking seat (8), and a special drilling tool (9) arranged on the frame (1).

2. The integral frame type oil cylinder driven micro tunnel traction drilling rig according to claim 1, characterized in that: The frame (1) is a frame-type welded structural component, which is used to support the entire equipment and provide a forward and backward moving track for the push-pull mechanism (2).

3. The integral frame type oil cylinder driven micro tunnel traction drilling rig according to claim 1, characterized in that: The push-pull mechanism (2) comprises a push-pull base, a stop plate, upper and lower wear-resistant plates, and a lower hook plate. The push-pull base is a plate-welded component, and a fixed platform for a rotary torque power device (3) is installed in the middle of the push-pull base. Two through holes are designed on both sides of the push-pull base to provide a moving space for the cylinder body of the push-pull oil cylinder (7).

4. The integral frame type oil cylinder driven micro tunnel traction drilling rig according to claim 3, characterized in that: The stop plate is used to cooperate with the push-pull oil cylinder (7) for installation. The stop plate is placed in the card slot of the push-pull base to achieve locking of the oil cylinder barrel and the push-pull base. Two step planes are processed on both sides of the bottom surface of the push-pull base for installing the upper wear-resistant plate, so that the upper wear-resistant plate contacts the upper plane of the frame (1) to avoid friction damage caused by direct contact between the push-pull base and the frame (1) during relative movement.

5. The integral frame type oil cylinder driven micro tunnel traction drilling rig according to claim 3, characterized in that: The lower wear-resistant plate is placed in the groove of the lower hook plate, the upper surface of the lower hook plate coincides with the lower plane of the upper wear-resistant plate and is fixed to the screw mounting hole of the base with screws, the upper plane of the lower wear-resistant plate coincides with the lower guide rail of the frame (1), and the push-pull mechanism (2) is limited on the upper, lower, left, and right sides of the frame (1) by the lower hook plate, so that it can only move forward and backward on the frame rail.

6. The integral frame type oil cylinder driven micro tunnel traction drilling rig according to claim 1, characterized in that: The rotary torque power device (3) is driven by a low-speed, high-torque plunger motor, and the clamp device (4) is configured as a breaker device for disassembling drill rods and drilling tools.

7. The integral frame type oil cylinder driven micro tunnel traction drilling rig according to claim 1, characterized in that: The leveling and tightening device (5) is used to level the frame (1) and to adjust the frame (1) in a fixed tensioning manner in the front and rear directions. The leveling and tightening device (5) is composed of a base, a shaft head and an adjusting screw. One end of the shaft head is a ball head structure that cooperates with the ball head groove of the base so that the shaft head rotates in the base groove. The other end of the shaft head is an internal thread structure. The thread of the adjusting screw can be screwed into the interior of the shaft head and the end is fixed, so that the shaft head and the screw can rotate together.

8. The integral frame type oil cylinder driven micro tunnel traction drilling rig according to claim 1, characterized in that: The oil cylinder rear support (6) includes a support vertical plate, a wear-resistant plate and left and right limit plates. The inner hole of the support vertical plate cooperates with the positioning step of the rear end of the push-pull oil cylinder (7) and is fixed to the rear end of the push-pull oil cylinder (7) with screws. The upper surface of the wear-resistant plate coincides with the bottom surface of the support vertical plate, and the lower surface coincides with the upper surface of the frame guide rail. The left and right limit plates are installed on both sides of the support vertical plate and coincide with both sides of the frame (1) guide rail, so that the push-pull oil cylinder (7) is positioned at the rear support (6). Under the action of the push-pull oil cylinder (7), the equipment moves linearly along the frame guide rail. The push-pull oil cylinder (7) provides linear motion power for the equipment. The cylinder end face of the push-pull oil cylinder (7) and the rear support (6) are installed on the guide rail surface of the frame (1). The cylinder piston rod earring of the push-pull oil cylinder (7) is fixedly installed on the front jacking seat (8) through a pin shaft. A positioning groove is provided on the cylinder body of the push-pull oil cylinder (7). The positioning groove cooperates with the stop plate to limit the relative position of the cylinder barrel and the push-pull base.

9. The integral frame type oil cylinder driven micro tunnel traction drilling rig according to claim 1, characterized in that: The front jacking seat (8) is welded and fixed to the front end of the frame (1), and fixes the earring of the push-pull oil cylinder (7), so that the position of the oil cylinder earring is fixed and the cylinder barrel performs linear telescopic movement. The special drilling tool (9) is divided into a drill rod, a guide drill bit and a cutting expansion head. The drill rod is a special rod for processing thick-walled pipe materials. Both ends of the rod body are processed with male and female taper threads. The threads mainly play the role of transmitting torque and tensioning force. The outer circle of the rod is processed near the male and female buckle ends to lock the card. A control carbon rod is placed inside the guide drill bit for the construction of the guide hole before the laying of the new pipeline. The cutting expansion head is welded with a cutting alloy cutter head for graded cutting of the stratum to form a circular hole of corresponding specifications.

Images