Drilling positioning sleeve and rotary drilling machine
Through the layered drilling positioning sleeve, the inner snail can be detached, the middle snail can be rotatable, and the outer snail has lubricating channels, which solves the problem of high maintenance costs of traditional positioning sleeves and achieves flexible rotation and reduces wear.
Patent Information
- Application Number
- CN202422499466.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-16
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-10-16
AI Technical Summary
The traditional integrated drilling positioning sleeve needs to be replaced as a whole after wear, resulting in high maintenance costs and easy to stagnate, affecting the positioning effect.
The outer snail, middle snail and inner snail structure is adopted. The inner snail can be detached, the middle snail can be rotatable, the outer snail has a lubricating channel, and the outer snail can be rolled between the outer snail and the middle snail, and the inner snail can be detached and connected through a threaded pair.
Reduces maintenance costs and avoids overall replacement. The middle trap rotates smoothly, reduces wear and improves the service life and maintenance efficiency of the positioning sleeve.
Smart Images
Figure CN223282015U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of drilling machines, in particular to a drilling positioning sleeve for a rotary drill and the rotary drill. Background Art
[0002] Currently, the drilling locating sleeves used in rotary drills are generally made of one-piece steel. Although relatively inexpensive to manufacture, the inner wall of the locating sleeve needs to be replaced as a whole when it wears out. Furthermore, as the integral locating sleeve rotates, the outer wall wears away the surfaces of contacting parts, requiring replacement over time, resulting in high subsequent maintenance costs. Furthermore, traditional locating sleeves are prone to binding during rotation, affecting the positioning effect.
[0003] Therefore, there is an urgent need for a drilling positioning sleeve and a rotary drill that can reduce subsequent maintenance costs. Utility Model Content
[0004] The utility model aims to provide a drilling positioning sleeve and a rotary drill, aiming to solve the technical problem of high subsequent maintenance cost of traditional integral drilling positioning sleeves.
[0005] To achieve the above objectives, in a first aspect, the present invention provides a drilling positioning sleeve, comprising an outer ring sleeve, a middle ring sleeve and an inner ring sleeve which are sequentially sleeved, wherein the middle ring sleeve can be rotatably sleeved in the outer ring sleeve, and the inner ring sleeve can be detachably sleeved in the middle ring sleeve;
[0006] A lubrication channel is provided in the outer ring for providing lubrication medium for the rotation between the outer ring and the middle ring.
[0007] As a further improvement of the above solution, balls and / or rollers are rollably arranged between the outer ring and the middle ring, so that the middle ring can be rotatably arranged in the outer ring.
[0008] As a further improvement of the above solution, a lubricating oil filling nozzle is provided at one end of the lubrication channel, and the other end extends to the gap between the outer ring and the middle ring.
[0009] As a further improvement of the above solution, the outer ring comprises an outer ring sleeve and an outer flange arranged at one end of the outer ring sleeve, and the outer flange is provided with a connection structure connected to the drilling rig;
[0010] Preferably, the connection structure is at least two notches provided on the edge of the outer flange, and correspondingly, a limit block is provided on the drilling rig for being clamped at the notches to prevent the drilling rig from rotating when the drill rod of the drilling rig rotates.
[0011] As a further improvement of the above solution, the middle ring sleeve includes a middle ring sleeve body, and a mounting groove matching the balls and / or rollers is provided in the middle of the outer wall of the middle ring sleeve body;
[0012] Sealing grooves are respectively provided at both ends of the outer wall of the middle ring sleeve body, and sealing rings are respectively provided in the sealing grooves to prevent dust from entering and lubricating medium from leaking.
[0013] As a further improvement of the above solution, the inner ring includes an inner ring sleeve and an inner flange arranged at one end of the inner ring sleeve. The inner flange is pressed onto the top of the middle ring and is detachably connected to the middle ring through a threaded pair.
[0014] As a further improvement to the above solution, a plurality of through holes are evenly distributed on the edge of the inner flange, and correspondingly, a threaded hole is provided on the top of the middle trap that matches the through holes;
[0015] The inner ring is detachably sleeved in the middle ring by screws.
[0016] In a second aspect, the present invention further provides a rotary drill, comprising the drilling positioning sleeve provided in the first aspect.
[0017] Since the utility model adopts the above technical solution, the beneficial effects of this application are:
[0018] The utility model provides a drilling positioning sleeve, comprising an outer ring sleeve, a middle ring sleeve and an inner ring sleeve which are sequentially sleeved, the middle ring sleeve being rotatably sleeved in the outer ring sleeve, and the inner ring sleeve being detachably sleeved in the middle ring sleeve; a lubrication channel is provided in the outer ring sleeve for providing a lubricating medium for the rotation between the outer ring sleeve and the middle ring sleeve; in the utility model, the drilling positioning sleeve is arranged as an outer ring sleeve, a middle ring sleeve and an inner ring sleeve which are sequentially sleeved, firstly, the inner ring sleeve and the middle ring sleeve are detachably connected, when the inner ring sleeve which contacts the drill pipe is worn, only the inner ring sleeve needs to be replaced, and there is no need to replace the entire drilling positioning sleeve, thereby reducing subsequent maintenance costs; secondly, the middle ring sleeve is rotatably sleeved in the outer ring sleeve, and the outer ring sleeve is relatively fixed and does not rotate, so that the outer ring sleeve which contacts with other parts of the drilling rig does not cause wear on the surface of the contacting parts, thereby reducing the later maintenance costs of the drilling rig; furthermore, a lubrication channel is provided in the outer ring sleeve, so that the rotation of the middle ring sleeve is smoother and more flexible. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the implementation methods or the description of the prior art. Obviously, the drawings described below are only some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.
[0020] Figure 1 This is a three-dimensional schematic diagram of a drilling positioning sleeve disclosed in the utility model;
[0021] Figure 2 This is a top view of a drilling positioning sleeve disclosed in the utility model;
[0022] Figure 3 for Figure 2 BB cross-sectional view (without the lifting ring);
[0023] Figure 4 This is a schematic diagram of a main view of a drilling positioning sleeve disclosed in the utility model;
[0024] Figure 5 for Figure 4 AA cross-sectional view of ;
[0025] Figure 6 This is a three-dimensional schematic diagram of the outer ring disclosed in the utility model;
[0026] Figure 7 This is a cross-sectional schematic diagram of the middle trap disclosed in the present utility model;
[0027] Figure 8 This is a three-dimensional schematic diagram of the inner ring disclosed in the utility model;
[0028] Figure 9 This is a schematic cross-sectional view of the inner ring disclosed in the present utility model;
[0029] Figure 10 It is a partial three-dimensional schematic diagram of a rotary drill disclosed in the utility model.
[0030] Reference numerals:
[0031] 0. Drilling positioning sleeve; 01. Drill rod; 02. Drilling platform; 03. Limit block;
[0032] 1. Outer ring; 11. Outer sleeve; 12. Outer flange; 13. Notch;
[0033] 2. Middle ring sleeve; 21. Middle ring sleeve body; 22. Mounting groove; 23. Sealing groove;
[0034] 3. Inner ring; 31. Inner sleeve; 32. Inner flange; 33. Through hole; 34. Screw;
[0035] 4. Lubrication channel; 5. Ball; 6. Roller; 7. Lubricating oil filling nozzle; 8. Sealing ring.
[0036] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0038] It should be noted that all directional indications (such as up, down, etc.) in the implementation mode of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0039] In addition, in this utility model, the terms "first," "second," etc. are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one of such features.
[0040] Moreover, the technical solutions between the various embodiments of the present invention can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.
[0041] Example 1
[0042] See also Figures 1-9 The utility model provides a drilling positioning sleeve, comprising an outer ring sleeve 1, a middle ring sleeve 2 and an inner ring sleeve 3 which are sequentially sleeved, wherein the middle ring sleeve 2 can be rotatably sleeved in the outer ring sleeve 1, and the inner ring sleeve 3 can be detachably sleeved in the middle ring sleeve 2;
[0043] A lubrication channel 4 is provided in the outer ring 1. In this embodiment, two lubrication channels 4 are provided on the inner wall of the outer ring 1. One end of each lubrication channel 4 is provided with a lubricating oil filling nozzle 7, and the other end extends to the gap between the outer ring 1 and the middle ring 2, for providing lubricating medium for the rotation between the outer ring 1 and the middle ring 2;
[0044] In the present invention, the drilling positioning sleeve 0 is configured to be sequentially sleeved with an outer ring sleeve 1, a middle ring sleeve 2 and an inner ring sleeve 3. First, the inner ring sleeve 3 and the middle ring sleeve 2 are detachably connected. When the inner ring sleeve 3 in contact with the drill rod 01 is worn, only the inner ring sleeve 3 needs to be replaced, and there is no need to replace the drilling positioning sleeve 0 as a whole, thereby reducing subsequent maintenance costs; secondly, the middle ring sleeve 2 is rotatably sleeved in the outer ring sleeve 1, and the outer ring sleeve 1 is relatively fixed and does not rotate, so that the outer ring sleeve 1 in contact with other parts of the drilling rig will not cause wear on the surface of the contacting parts, thereby reducing the later maintenance costs of the drilling rig; furthermore, a lubrication channel 4 is provided in the outer ring sleeve 1, so that the rotation of the middle ring sleeve 2 is smoother and more flexible.
[0045] As a preferred embodiment, see Figure 3 and Figure 5 , balls 5 and / or rollers 6 are rollably arranged between the outer ring 1 and the middle ring 2, so that the middle ring 2 can be rotatably arranged in the outer ring 1;
[0046] Specifically, in this embodiment, a group of balls 5 and two groups of rollers 6 are provided between the outer ring 1 and the middle ring 2, and the group of rollers 6 and the two groups of rollers 6 are arranged between the outer ring 1 and the middle ring 2 from top to bottom, so that the middle ring 2 can rotate relative to the outer ring 1 and can ensure smooth and flexible rotation between the two.
[0047] As a preferred embodiment, see Figure 2 and Figure 6 The outer ring 1 includes an outer ring sleeve 11 and an outer flange 12 provided at one end of the outer ring sleeve 11, and the outer flange 12 is provided with a connection structure connected to the drilling rig;
[0048] Preferably, the connection structure is provided with at least two notches 13 on the side of the outer flange 12, and correspondingly, a limit block 03 is provided on the drilling rig for being clamped at the notches 13 to prevent the drilling rig from rotating when the drill rod 01 rotates;
[0049] In some preferred embodiments, the outer ring 1 can be fixedly installed with the relevant components of the drilling rig by means of a threaded pair, or positioning holes can be provided on the outer flange 12 to achieve fixed installation with the relevant components of the drilling rig by means of latches;
[0050] In this embodiment, the inlet of the lubrication channel 4 is provided on the upper surface of the outer flange 12 , and the lubricating oil filling nozzle 7 is provided on the outer flange 12 .
[0051] As a preferred embodiment, see Figure 7The middle ring sleeve 2 includes a middle ring sleeve body 21, and a mounting groove 22 matching the balls 5 and / or rollers 6 is provided in the middle of the outer wall of the middle ring sleeve body 21; specifically, in this embodiment, three mounting grooves 22 are provided at intervals on the outer wall of the middle ring sleeve body 21, which are respectively used to mount one group of rollers 6 and two groups of rollers 6; correspondingly, mounting grooves 22 for balls 5 and / or rollers 6 matching the mounting grooves 22 are provided on the inner wall of the outer ring sleeve 11;
[0052] In some preferred embodiments, a rolling bearing may be provided between the outer ring 1 and the inner ring 3 to enable rotation between the inner ring 3 and the outer ring 1;
[0053] Sealing grooves 23 are respectively provided at both ends of the outer wall of the middle ring sleeve body 21 , and sealing rings 8 are respectively provided in the sealing grooves 23 to prevent dust from entering and lubricating medium from leaking.
[0054] As a preferred embodiment, see Figure 8 and Figure 9 The inner ring 3 includes an inner ring sleeve 31 and an inner flange 32 provided at one end of the inner ring sleeve 31. The inner flange 32 is pressed onto the top of the middle ring 2 and is detachably connected to the middle ring 2 through a threaded pair.
[0055] Specifically, a plurality of through holes 33 are evenly distributed on the edge of the inner flange 32, and correspondingly, a threaded hole corresponding to the through holes 33 is provided on the top of the middle ring 2; the inner ring 3 is detachably mounted in the middle ring 2 by screws 34; and is detachably connected to the middle ring 2 by a threaded pair, which is simple to process and low in cost, and is more portable in subsequent changes to the inner ring 3, which can be replaced by simply removing the screws 34.
[0056] Example 2
[0057] See also Figure 10 The present invention further provides a rotary drill, comprising a drill rod 01, a drilling platform 02, and the drilling positioning sleeve 0 provided in Example 1; the drilling positioning sleeve 0 is arranged on the drilling platform 02, and the drill rod 01 passes through the through hole 33 of the inner ring 3 of the drilling positioning sleeve 0; in this embodiment, a limit block 03 is provided on the drilling platform 02, and the limit block 03 is correspondingly clamped at the corresponding notch 13 of the drilling positioning sleeve 0, is arranged on the drilling platform 02, and limits its rotation;
[0058] The inner ring 3 and the middle ring 2 are detachably connected. When the inner ring 3 in contact with the drill rod 01 is worn, only the inner ring 3 needs to be replaced, and there is no need to replace the entire drilling positioning sleeve 0, thereby reducing subsequent maintenance costs; secondly, the middle ring 2 is rotatably sleeved in the outer ring 1, and the outer ring 1 is relatively fixed and does not rotate, so that the outer ring 1 in contact with other parts of the drilling rig does not cause wear on the surface of the contacting parts, thereby reducing the subsequent maintenance costs of the drilling rig; furthermore, a lubrication channel 4 is provided in the outer ring 1, which makes the rotation of the middle ring 2 smoother and more flexible.
[0059] The above are only preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. All equivalent structural transformations made based on the contents of the present invention specification and drawings, or direct / indirect applications in other related technical fields, within the scope of the present invention are included in the patent protection scope of the present invention.
Claims
1. A drilling positioning sleeve, characterized in that: It comprises an outer ring, a middle ring and an inner ring which are sequentially sleeved, wherein the middle ring can be rotatably sleeved in the outer ring, and the inner ring can be detachably sleeved in the middle ring; A lubrication channel is provided in the outer ring for providing lubrication medium for the rotation between the outer ring and the middle ring.
2. A drilling positioning sleeve according to claim 1, characterized in that: Balls and / or rollers are rollably arranged between the outer ring and the middle ring, so that the middle ring can be rotatably arranged in the outer ring.
3. A drilling positioning sleeve according to claim 1 or 2, characterized in that: One end of the lubrication channel is provided with a lubricating oil filling nozzle, and the other end extends to the gap between the outer ring and the middle ring.
4. A drilling positioning sleeve according to claim 1 or 2, characterized in that: The outer ring comprises an outer ring sleeve and an outer flange arranged at one end of the outer ring sleeve. The outer flange is provided with a connection structure connected to a drilling rig.
5. A drilling positioning sleeve according to claim 4, characterized in that: The connection structure is at least two notches provided on the edge of the outer flange. Correspondingly, a limit block for being clamped at the notches is provided on the drilling rig.
6. The drilling positioning sleeve according to claim 2, characterized in that: The middle ring sleeve comprises a middle ring sleeve body, and a mounting groove matching the balls and / or rollers is provided in the middle of the outer wall of the middle ring sleeve body; Sealing grooves are respectively provided at both ends of the outer wall of the middle ring sleeve body, and sealing rings are respectively provided in the sealing grooves.
7. A drilling positioning sleeve according to claim 1 or 2, characterized in that: The inner ring comprises an inner ring sleeve and an inner flange arranged at one end of the inner ring sleeve. The inner flange is pressed onto the top of the middle ring and is detachably connected to the middle ring through a threaded pair.
8. The drilling positioning sleeve according to claim 7, characterized in that: The inner flange is evenly distributed with a plurality of through holes. Correspondingly, the top of the middle ring is provided with threaded holes that match the through holes. The inner ring is detachably mounted in the middle ring by screws.
9. A rotary drill, characterized in that: The invention comprises a drilling positioning sleeve as described in any one of claims 1 to 8.