CN210105763U - Sliding guide device for inner tower and outer tower of telescopic drilling tower - Google Patents

Abstract

The utility model discloses a telescopic internal and external pylon sliding guide device for boring tower, including interior pylon (1) and outer pylon (2), interior pylon cover is established in outer pylon guide rail (201), set up leading wheel assembly (4) on the interior pylon, interior pylon is through leading wheel assembly and outer pylon guide rail (201) sliding connection. The guide wheel assembly comprises a support (408) fixedly connected with the inner tower, two eccentric sleeves (405) are arranged on the support in parallel through clearance fit, one end of each eccentric sleeve is provided with an end cover (4051), the support and the end covers are provided with a plurality of adjusting holes (4052), and the support and the end covers are fixedly connected through second bolts (415) penetrating through the adjusting holes; first shafts (406) are respectively arranged in the two eccentric sleeves in an interference fit mode, and rollers (409) are respectively arranged at one ends of the two first shafts through bearings. The utility model discloses the destruction that the inside and outside tower direct contact friction of having avoided flexible rig caused, and then prolonged the rig life-span.

Description

Sliding guide device for inner tower and outer tower of telescopic drilling tower

Technical Field

The utility model relates to a rig of rig, especially a telescopic rig is with inside and outside pylon sliding guide device.

Background

The full-hydraulic geothermal well drilling machine is suitable for various construction processes such as air down-the-hole hammer impact drilling, slurry rotary cutting drilling, air foam drilling and the like, and is widely applied to drilling ground source heat pump air-conditioning holes, water wells, monitoring wells, dewatering wells and other drilling projects. The inner tower 1 of the telescopic tower type geothermal well drilling machine in the market can slide in the track of the outer tower 2 (as shown in figures 1 and 2), and can meet the construction requirement of a 6-meter drilling tool, so that the auxiliary time can be shortened, and the drilling efficiency can be improved, but the inner tower guide rail 101 (as shown in figure 3) of the inner tower 1 and the outer tower guide rail 201 (as shown in figure 4) of the outer tower 2 are in direct contact sliding friction without a wear-resistant device in the relative sliding process. Because the contact surfaces of the inner tower guide rail 101 and the outer tower guide rail 201 are blank surfaces and have large frictional resistance, the inner tower guide rail 101 and the outer tower guide rail 201 are quickly worn, and even the bad condition that the contact surfaces of the guide rails are directly damaged by abnormal wear occurs.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to the above-mentioned problem that current flexible tower exists, provide one kind and can avoid inside and outside tower direct contact friction, the telescopic derrick of extension rig life-span is with inside and outside pylon sliding guide device.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: the utility model provides a telescopic internal and external pylon sliding guide device for boring tower, includes interior pylon and outer pylon, and interior pylon cover is established in outer pylon guide rail, set up the leading wheel assembly on the interior pylon, interior pylon is through leading wheel assembly and outer pylon guide rail sliding connection.

Furthermore, the guide wheel assembly comprises a support fixedly connected with the inner tower frame, two eccentric sleeves are arranged on the support in parallel through clearance fit, one end of each eccentric sleeve is provided with an end cover, the support and the end cover are provided with a plurality of adjusting holes, and the support and the end cover are fixedly connected through second bolts penetrating through the adjusting holes; the two eccentric sleeves are internally provided with first shafts in interference fit respectively, and one ends of the two first shafts are provided with rollers through bearings respectively.

Furthermore, a second shaft is fixedly arranged at one end of the support, side rollers are mounted on the second shaft through bearings, the first shaft is perpendicular to the second shaft, so that the two rollers are respectively contacted with two opposite surfaces of the outer tower guide rail, and the side rollers are contacted with the side surface of the outer tower guide rail.

Furthermore, the other end of the support is fixedly connected with a mud scraping block through a first bolt, the mud scraping block is as high as the mounting height of the side roller, and the mud scraping block is in contact with the side face of the outer tower guide rail.

Further, a spacer bush is arranged between the mud scraping block and the first bolt.

Furthermore, the outer end of the roller is provided with a gland, and the inner end of the roller is provided with a felt sealing ring.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a set up the leading wheel assembly between pylon guide rail and outer pylon guide rail including, make interior pylon guide rail and outer pylon guide rail realize sliding connection through the leading wheel assembly to can avoid the destruction that inside and outside pylon direct contact friction caused, and then prolonged the rig life-span.

2. The utility model discloses a central distance that two eccentric sleeves have realized two gyro wheels is adjustable to it is adjustable to make the direction width, has reached and has reduced the guide rail required precision.

3. The utility model discloses set up the gland in the outer end of gyro wheel, the inner sets up the felt sealing washer for it is dustproof can be good.

4. The utility model discloses support and interior tower pass through bolted connection, make its dismouting simple and convenient.

Drawings

Fig. 1 is a partial structural view of a telescopic derrick.

Fig. 2 is a sectional view a-a of fig. 1.

FIG. 3 is a main cross-sectional view of the inner tower of the telescoping rig.

FIG. 4 is a main cross-sectional view of an outer tower of the telescoping rig.

Fig. 5 is a front view structural diagram of an embodiment of the sliding guide device for the inner tower and the outer tower of the telescopic drill tower of the present invention.

Fig. 6 is a left side view of fig. 5.

Fig. 7 is a sectional view a-a of fig. 5.

Fig. 8 is a sectional view B-B of fig. 5.

Fig. 9 is a front view structural diagram of the guide wheel assembly of the present invention.

Fig. 10 is a top view of fig. 9.

Fig. 11 is a sectional view a-a of fig. 9.

Fig. 12 is a sectional view taken along line B-B of fig. 10.

Fig. 13 is a drawing of the eccentric sleeve component of the present invention.

In the figure: 1. an inner tower; 2. an outer tower; 3. a feed pulley assembly; 4. a guide wheel assembly; 101. an inner tower rail; 201. an outer tower rail; 401. pressing a plate; 402. scraping mud blocks; 403. a first bolt; 404. a spacer sleeve; 405. an eccentric sleeve; 406. a first shaft; 407. a felt sealing ring; 408. a support; 409. a roller; 410. a gland; 411. a cylindrical roller bearing; 412. a second shaft; 413. a side roller; 414. a bearing with a dust cover on one side; 415. a second bolt; 4051. an end cap; 4052. and adjusting the hole.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

As shown in fig. 5-8, the present invention provides an embodiment of an internal and external tower sliding guide device for a telescopic drilling tower, which comprises an internal tower 1 and an external tower 2, wherein the internal tower 1 is sleeved on the external tower 2, and the internal tower 1 is provided with a guide wheel assembly 4, and the internal tower 1 is slidably connected to an external tower guide rail 201 of the external tower 2 via the guide wheel assembly 4.

As shown in fig. 9-13, the guide wheel assembly 4 of the present invention includes a support 408 connected to the inner tower 1 via a bolt, two first shafts 406 are mounted on the support 408 in parallel via two eccentric sleeves 405, and a roller 409 is mounted at one end of each of the two first shafts 406 via a cylindrical roller bearing 411. The outer end of the roller 409 is provided with a gland 410, and the inner end is provided with a felt sealing ring 407. An end cover 4051 is arranged at one end of each of the two eccentric sleeves 405, the two eccentric sleeves 405 are installed with the shaft 406 in a clearance fit mode, the two eccentric sleeves 405 can freely rotate around the central axes of the two eccentric sleeves 405, and after the two eccentric sleeves 405 rotate to a proper position, the two eccentric sleeves 405 and the support 408 are connected and fixed through the second bolt 415, so that the purpose of adjusting the central positions of the two first shafts 406 which are installed in parallel is achieved, the central distance between the two rollers 409 is adjusted, deformation occurring in the welding process of the outer tower guide rail 201 is compensated, smooth assembly of the drilling tower is guaranteed, the gap between the inner tower 1 and the outer tower 2 is reduced, and the guiding precision of the tower is improved. One end of the support 408 is fixedly connected with the mud scraping block 402 through a first bolt 403, and a spacer 404 is arranged between the mud scraping block 402 and the first bolt 403; a second shaft 412 is fixedly arranged at the other end of the support 408, a side roller 413 is arranged on the second shaft 412 through a bearing 414 with a dust cover on one surface, the first shaft 406 is arranged perpendicular to the second shaft 412, two rollers 409 are respectively contacted with two opposite surfaces of the outer tower guide rail 201, and the side roller 413 is contacted with the side surface of the outer tower guide rail 201.

During the use, adjust two eccentric sleeves 405 to suitable position earlier, and fixed with second bolt 415, two gyro wheels 409 that make leading wheel assembly 4 on the interior pylon 1 contact respectively with two opposite faces of outer pylon guide rail 201, side gyro wheel 413 and the side contact of outer pylon guide rail 201, make like this and be rolling friction between the three face of leading wheel assembly 4 on the flexible in-process interior pylon 1 and outer pylon guide rail 201 contact, thereby reduced the wearing and tearing of inside and outside pylon 1, 2 guide rails, increased its life.

The utility model discloses on pylon 3 including well leading wheel assembly 4 is fixed with the bolt, easy dismounting is convenient for maintain, change each part in leading wheel assembly 4. The second bolt 415 prevents the eccentric sleeve 405 from freely rotating and sliding out after being adjusted in position. The cylindrical roller bearing 411 is large in bearing capacity and long in service life, the gland 410 limits bearing displacement and can be sealed and dustproof, the felt sealing ring 407 plays a role in dust prevention and sealing, the bearing 414 with the dustproof cover on one side can better prevent dust, the mud scraping block 402 is made of a copper wire asbestos brake tape material, and soil impurities shown by the outer tower rail 201 can be cleaned in time. Because the mud scraping block 402 is soft, the steel spacer 404 can ensure that the bolt 403 is not easy to loosen.

Claims (6)

1. The utility model provides a telescopic internal and external pylon sliding guide device for boring tower, includes interior pylon (1) and outer pylon (2), and interior pylon cover is established in outer pylon guide rail (201), its characterized in that sets up leading wheel assembly (4) on the interior pylon, interior pylon is through leading wheel assembly and outer pylon guide rail (201) sliding connection.

2. The sliding guide device for the inner tower and the outer tower of the telescopic drilling tower as claimed in claim 1, wherein the guide wheel assembly comprises a support (408) fixedly connected with the inner tower, two eccentric sleeves (405) are arranged on the support in parallel through clearance fit, an end cover (4051) is arranged at one end of each eccentric sleeve, a plurality of adjusting holes (4052) are arranged on the support and the end cover, and the support and the end cover are fixedly connected through second bolts (415) penetrating through the adjusting holes; first shafts (406) are respectively arranged in the two eccentric sleeves in an interference fit mode, and rollers (409) are respectively arranged at one ends of the two first shafts through bearings.

3. The sliding guide device for inner and outer towers of telescopic drilling tower as claimed in claim 2, wherein a second shaft (412) is fixedly arranged at one end of the support, a side roller (413) is arranged on the second shaft through a bearing, the first shaft is arranged perpendicular to the second shaft, so that the two rollers (409) are respectively contacted with two opposite surfaces of the outer tower guide rail, and the side roller is contacted with the side surface of the outer tower guide rail.

4. The sliding guide device for the inner tower and the outer tower of the telescopic drilling tower as claimed in claim 3, wherein the other end of the support is fixedly connected with a mud scraping block (402) through a first bolt (403), the mud scraping block and the side roller are installed at the same height, and the mud scraping block is in contact with the side surface of the guide rail of the outer tower.

5. The sliding guide for inner and outer towers of telescopic drilling tower according to claim 4, wherein a spacer (404) is provided between the mud scraping block and the first bolt.

6. The sliding guide for inner and outer towers of telescopic drill tower according to claim 2, wherein the rollers are provided with a gland (410) at the outer end and felt sealing rings (407) at the inner end.

Images