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A flexible connection device at the tail end of a pressurized oil cylinder and a rotary drilling rig

A pressurized oil cylinder, flexible connection technology, applied in drill pipe, drill pipe, earthwork drilling and other directions, can solve problems such as deviation, pressurized oil cylinder barrel, long piston rod, etc., to improve service life, improve working conditions, Long service life effect

Active Publication Date: 2020-05-01
SANY HEAVY IND CO LTD (CN)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to meet the needs of the pressurization stroke, the cylinder barrel and piston rod of the pressurized oil cylinder are very long, and there is a certain deviation after being assembled into the oil cylinder assembly

Method used

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  • A flexible connection device at the tail end of a pressurized oil cylinder and a rotary drilling rig
  • A flexible connection device at the tail end of a pressurized oil cylinder and a rotary drilling rig
  • A flexible connection device at the tail end of a pressurized oil cylinder and a rotary drilling rig

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1, with reference to figure 1 and figure 2 as shown,

[0031] see figure 1 , figure 1 Shown is a partial schematic view of the rotary drilling rig 10 provided in this embodiment. This type of rotary drilling rig 10 belongs to the cylinder pressurization method, which includes a flexible connection device 100 at the tail end of the pressurized cylinder, a mast 200 , a pressurized cylinder 300 , a power head carriage 500 and a guide rail 600 .

[0032] The guide rail 600 is fixed on the mast 200 , and the length direction of the guide rail 600 is the same as the length direction of the mast 200 . The power head carriage 500 is slidably connected to the guide rail 600 . The pressurized oil cylinder 300 includes a cylinder barrel 310 and a piston rod 320 , and the piston rod 320 is connected with the power head carriage 500 . The piston rod 320 protrudes from the head of the cylinder 310 and can move telescopically relative to the cylinder 310 under the act...

Embodiment 2

[0056] Embodiment 2 refers to image 3 as shown,

[0057] The implementation principle and technical effect of the flexible connection device at the tail end of the pressurized oil cylinder provided by the embodiment of the present invention are basically the same as those of Embodiment 1. For a brief description, reference can be made to Embodiment 1 for what is not mentioned in this embodiment. Corresponding content.

[0058] This embodiment provides a flexible connection device at the tail end of the pressurized oil cylinder, and the difference from Embodiment 1 is that the flexible connection device at the tail end of the pressurized oil cylinder not only includes the first limiting member 130 but also the second limiting member 140 . The structure of the second limiting member 140 is the same as that of the first limiting member 130 , and the second limiting member 140 also has a through hole whose diameter is larger than the outer diameter of the connecting rod 400 and ...

Embodiment 3

[0059] Embodiment 3 refers to Figure 4 as shown,

[0060] The implementation principle and technical effect of the flexible connection device at the tail end of the pressurized cylinder provided by the embodiment of the present invention are basically the same as those of Embodiment 1. For a brief description, reference can be made to Embodiment 1 for the parts not mentioned in this embodiment. Corresponding content.

[0061]This embodiment provides a flexible connection device at the tail end of a pressurized oil cylinder. The difference from Embodiment 1 is that the first stopper 130 is omitted, and the first hole segment 111a and the second hole segment 111b of the installation hole 111 are In exchange, the first hole segment 111 a with a larger hole diameter is closer to the pressurized oil cylinder 300 . In this embodiment, the shape of the shock-absorbing elastic member 120 is also different from that of Embodiment 1. In this embodiment, the shape of the shock-absorbi...

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Abstract

The invention provides a pressurizing oil cylinder tail end flexible connecting device and a rotary drilling rig. The pressurizing oil cylinder tail end flexible connecting device comprises a connecting seat, a damping elastic member and a connecting rod suitable for connecting a mast of the rotary drilling rig with the tail end of a pressurizing oil cylinder, the connecting seat comprises a firstconnecting portion and a second connecting portion, the first connecting portion is provided with a mounting hole, and the second connecting portion is used for being connected with the mast of the rotary drilling rig. The damping elastic member is fixed in the mounting hole and provided with a buffering hole for containing the connecting rod and can be abutted against the outer wall of the connecting rod to lower vibration of the pressurizing oil cylinder. The device can effectively absorb vibration and impact of the pressurizing oil cylinder during working, and the problem that the connecting device and fixing bolts are prone to being damaged can be improved; working conditions of sealing structure inside the pressurizing oil cylinder can be improved, and service life of the pressurizing oil cylinder is prolonged. Therefore, service life of the rotary drilling rig is longer.

Description

technical field [0001] The invention relates to the field of rotary drilling rigs, in particular to a flexible connection device at the tail end of a pressurized oil cylinder and a rotary drilling rig. Background technique [0002] At present, when the rotary drilling rig is working, the drilling tool needs the drilling rig to provide pressure to achieve efficient soil cutting and loading. There are two common pressurization methods, cylinder pressurization and winch pressurization. The cylinder pressurization structure is simple and easy to install, but the pressurization stroke is limited. Hoist pressurization can realize full-stroke pressurization, but the structure is complex and cumbersome to assemble and disassemble. Both pressurization methods have their own advantages and disadvantages, and are widely used. [0003] When the oil cylinder pressurization structure is used, the front end of the piston rod of the oil cylinder is connected with the power head carriage,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B19/086
CPCE21B19/086
Inventor 陈国广王龙刚于卓伟
Owner SANY HEAVY IND CO LTD (CN)
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