Guide roller and supporting ring plate type guider

Abstract

A guide roller and supporting ring plate type guider comprises a barrel, circular end plates cover the two ends of the barrel respectively, a balance weight is arranged in an inner cavity of the barrel, two ring plates are welded to the outer side of the barrel in a sleeving mode, and a plurality of guide seats are installed on the opposite side faces of the two ring plates at intervals respectively. A guide roller is arranged between the two opposite guide bases in the axial direction of the barrel, the two ends of the guide roller are rotationally installed on the two guide bases respectively, the multiple guide rollers are evenly distributed in the circumferential direction of the barrel at intervals, and the sides, away from the barrel, of the multiple guide rollers can roll on the well wall at the same time; the outer diameter of the annular plates is larger than that of the end plates, abrasion-resistant rings are installed on the opposite side faces of the two annular plates respectively, and the abrasion-resistant rings extend towards the outer sides of the annular plates and cover the outer arc faces of the annular plates. The contact range of the guider and the well wall is enlarged, the guider is protected, and abrasion is reduced.

Description

Technical Field

[0001] The invention relates to the field of guides for vertical shaft drilling machines, and in particular to a guide roller plus supporting ring plate type guide. Background Art

[0002] The guide is the core component of the drilling system of the shaft drilling rig and is the key to ensuring the stable operation of the drilling system. By properly arranging the guide above and below the drill pipe, the eccentricity of the entire drilling system during operation can be reduced as much as possible, the working stability of the drilling system can be improved, and the progress and quality of the shaft construction can be guaranteed.

[0003] In actual use, the existing guide has a small contact area with the well wall. When the well wall rock partially falls off or the well wall is irregular, the guide roller is easy to sink into the depression of the well wall during the rotation of the drill bit, thereby frequently hitting the edge of the depressed well wall, causing large amplitude of the drill bit, and the drilling rig speed cannot be increased, which in turn affects the drilling efficiency; and it will cause the guide support and guide roller to often suffer from severe wear and tear, and the support and roller need to be replaced frequently. Summary of the invention

[0004] The purpose of the present invention is to provide a guide roller plus supporting ring plate type guide, which increases the contact range between the guide and the well wall and protects the guide to reduce wear.

[0005] The technical solution adopted by the present invention to solve the above technical problems is: a guide roller plus supporting ring plate type guider used for connecting to the drill pipe of a vertical shaft drilling rig, comprising a cylinder, two ends of the cylinder are respectively covered with circular end plates, the surfaces of the end plates are welded to the ends of the cylinder, a counterweight is arranged in the inner cavity of the cylinder, two ring plates are sleeved on the outer side of the cylinder, the inner arc surface of the ring plate is welded to the outer wall of the cylinder, the two ring plates are arranged at intervals along the axial direction of the cylinder, a plurality of guide seats are respectively installed at intervals on the opposite sides of the two ring plates, a guide roller is arranged between the two guide seats opposite to the axial direction of the cylinder, the two ends of the guide roller are respectively rotatably installed on the two guide seats, the plurality of guide rollers are evenly spaced along the circumference of the cylinder, and the plurality of guide rollers can roll on the well wall at the same time away from the side of the cylinder; the outer diameter of the ring plate is larger than the outer diameter of the end plate, and the opposite sides of the two ring plates are respectively installed with wear-resistant rings, which extend toward the outer side of the ring plate and cover the outer arc surface of the ring plate.

[0006] Preferably, the wear-resistant ring includes a wear-resistant plate portion and a connecting plate portion, the wear-resistant plate portion covers the outer arc surface of the ring plate, the connecting plate portion is pressed onto the side surface of the ring plate, and connecting bolts are provided on the connecting plate portion and the ring plate.

[0007] According to the above technical solution, the beneficial effects of the present invention are: The guide of the present invention has two ring plates welded on the cylinder, and multiple guide seats are respectively installed on the two ring plates, and multiple guide rollers are installed between the two ring plates through the guide seats, so that the position of the guide roller relative to the cylinder along the axial direction can be controlled and raised, thereby increasing the contact range of the guide with the well wall in the circumferential direction, effectively solving the problem of large amplitude of the drill tool in the well wall depression encountered by the guide in the prior art, thereby enhancing the stability of the drill tool system, and further improving the drilling efficiency. In addition, a wear-resistant ring is installed on the outer side of the ring plate, and the wear-resistant ring covers the outer arc surface of the ring plate. When the well wall rock partially falls off and the well wall is irregular, during the rotation of the drill tool, the guide roller is easy to fall into the well wall depression, resulting in the roller losing contact with the well wall, so that when the guide and the drill rod are deflected in the hole, the wear-resistant ring will collide with the well wall, thereby protecting the guide roller, the ring plate and the end plate and other components, reducing wear, thereby reducing the number of replacements of on-site spare parts, and significantly improving the overall economic efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is an axial schematic diagram of the guide of the present invention; Figure 2 for Figure 1 AA cross-sectional view of .

[0009] Markings in the figure: 1. end plate, 2. cylinder, 3. counterweight, 4. ring plate, 5. guide seat, 6. guide roller, 7. wear-resistant ring. DETAILED DESCRIPTION

[0010] With reference to the accompanying drawings, the specific implementation is as follows: like Figure 1 , 2 As shown, a guide roller plus support ring plate type guide includes a cylinder 2, and circular end plates 1 are respectively provided at both ends of the cylinder 2. The surface of the end plate 1 is welded to the end of the cylinder 2. A counterweight 3 is provided in the inner cavity of the cylinder 2. When in use, the end plates 1 on both sides are respectively connected to two sections of drill pipes of a vertical shaft drilling rig, thereby lengthening the drill pipe. Since the lengthened drill pipe is too long, the drill pipe is prone to deflection and vibration during the drilling process, so the guide also plays a role in contacting the well wall for guidance.

[0011] like Figure 2 As shown, two ring plates 4 are sleeved on the outer side of the cylinder 2, the inner arc surface of the ring plate 4 is welded to the outer wall of the cylinder 2, the two ring plates 4 are arranged at intervals along the axial direction of the cylinder 2, and a plurality of guide seats 5 are installed at intervals on the opposite sides of the two ring plates 4, and the plurality of guide seats 5 on the same ring plate 4 are evenly spaced along the circumference of the ring plate 4.

[0012] like Figure 1 , 2As shown, a guide roller 6 is provided between two guide seats 5 which are opposite to each other along the axial direction of the cylinder 2. Both ends of the guide roller 6 are rotatably mounted on the two guide seats 5 respectively. A plurality of guide rollers 6 are evenly spaced along the circumference of the cylinder 2. A plurality of guide rollers 6 can roll on the well wall at the same time on the side away from the cylinder 2.

[0013] like Figure 2 As shown, the outer diameter of the ring plate 4 is larger than the outer diameter of the end plate 1, and wear-resistant rings 7 are respectively installed on the opposite sides of the two ring plates 4, and the wear-resistant rings 7 extend toward the outside of the ring plate 4 and cover the outer arc surface of the ring plate 4. In this embodiment, the wear-resistant ring 7 includes a wear-resistant plate part and a connecting plate part, the wear-resistant plate part covers the outer arc surface of the ring plate 4, the connecting plate part is pressed on the side of the ring plate 4, and connecting bolts are cooperated to penetrate the connecting plate part and the ring plate 4. Through this structure, the wear-resistant material required for the wear-resistant ring 7 can be reduced, and since the connecting plate part adopts a steel plate of ordinary strength, it is also easier to process a through hole for penetrating the bolts.

[0014] It should be noted that the above embodiments are only used to illustrate the invention, but the present invention is not limited to the above application fields and embodiments. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention fall within the protection scope of the present invention.

Claims

1. A guide roller plus support ring plate guider, used for connecting with a drill pipe of a vertical shaft drilling rig, characterized in that: The invention comprises a cylinder (2), wherein both ends of the cylinder (2) are respectively covered with circular end plates (1), the surfaces of the end plates (1) are welded to the ends of the cylinder (2), a counterweight (3) is arranged in the inner cavity of the cylinder (2), two ring plates (4) are sleeved on the outer side of the cylinder (2), the inner arc surface of the ring plate (4) is welded to the outer wall of the cylinder (2), the two ring plates (4) are arranged at intervals along the axial direction of the cylinder (2), and a plurality of guide seats (5) are respectively installed at intervals on the opposite sides of the two ring plates (4), and two guide seats (5) opposite to each other along the axial direction of the cylinder (2) are arranged at intervals. A guide roller (6) is provided between the seats (5), and both ends of the guide roller (6) are rotatably mounted on the two guide seats (5), and a plurality of guide rollers (6) are evenly spaced and distributed along the circumference of the cylinder (2), and a side of the plurality of guide rollers (6) away from the cylinder (2) can roll on the well wall at the same time; the outer diameter of the ring plate (4) is greater than the outer diameter of the end plate (1), and wear-resistant rings (7) are respectively installed on the opposite sides of the two ring plates (4), and the wear-resistant rings (7) extend toward the outside of the ring plate (4) and cover the outer arc surface of the ring plate (4).

2. The guide roller plus support ring plate type guider according to claim 1, characterized in that: The wear-resistant ring (7) comprises a wear-resistant plate portion and a connecting plate portion, the wear-resistant plate portion covers the outer arc surface of the ring plate (4), the connecting plate portion is pressed onto the side surface of the ring plate (4), and connecting bolts are cooperatively provided on the connecting plate portion and the ring plate (4).

Images