Drill shank sleeve based on iron notch drill

Abstract

The utility model relates to the technical field of iron notch drilling machines, in particular to a bit shank sleeve based on an iron notch drilling machine, which comprises a bit shank sleeve main body, a first connecting groove is formed at one end of the bit shank sleeve main body, and a second connecting groove is formed at the other end of the bit shank sleeve main body; the convex block is arranged on the drill rod; according to the utility model, the convex block is arranged in the radial direction of the drill rod, then the connecting groove matched with the convex block is formed in the bit shank sleeve main body, and the convex block is matched with the connecting groove, so that concentrated stress points at the joint of the drill rod and the bit shank sleeve main body are dispersed into a plurality of stress points; the pressure at the joint of the drill rod and the bit shank sleeve main body is dispersed by dispersing stress points, so that the risk of deformation of the drill rod at the joint of the drill rod and the bit shank sleeve main body is reduced, and the problem that the drill rod is difficult to take out and replace from the bit shank sleeve due to deformation of the drill rod, so that the working efficiency of an iron notch drill is low is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a machine of opening iron mouth technical field especially a kind of drill collar based on machine of opening iron mouth. BACKGROUND

[0002] Machine of opening iron mouth is a kind of commonly used equipment of ironworks, and its main function is to open iron mouth at certain angle, so that molten iron can flow out from passage smoothly.

[0003] Machine of opening iron mouth is mainly composed of rotary part and drilling part. Among them, drilling part includes drill collar and drill rod, and drill collar is an important sleeve installed at the tail of drill rod, which is responsible for connecting and fixing drill rod and percussion rod (in machine of opening iron mouth, one end of percussion rod is connected with rock drill, and rock drill is a key component for driving drill rod to drill). Drill rod realizes crushing operation by cooperating with drill bit (set at the head of drill rod). In the operation process of machine of opening iron mouth, the rotary power and impact force generated by rock drill need to be transmitted to drill rod through percussion rod and drill collar, so as to drive drill bit to carry out crushing operation.

[0004] In the prior art, a slot is formed in the inside of drill collar, and a protrusion is arranged on the slot, which is used to realize the connection between drill rod and drill collar. The specific implementation is that a groove matched with the protrusion is formed at the tail of drill rod, i.e. at the end connected with drill collar, drill rod is inserted into the slot, and then drill rod is rotated to make the protrusion inserted into the groove of drill rod, so as to realize the connection between drill rod and drill collar.

[0005] However, it is found in actual operation that, since the connection between drill rod and drill collar is realized by a groove and a protrusion, and the hardness of drill collar is higher than that of drill rod, there is a problem that the stress points of drill rod and drill collar are too concentrated (in the working process, the stress points of drill rod and drill collar are mainly concentrated at the connection, i.e. the position of groove and protrusion), which leads to the deformation of drill rod at the connection between drill rod and drill collar due to excessive pressure, so that drill rod is stuck in drill collar and is not easy to be taken out or replaced, thereby causing the problem of low working efficiency of machine of opening iron mouth. INVENTION CONTENTS

[0006] The purpose of the utility model is to provide a drill collar based on machine of opening iron mouth to solve the problems raised in the above background.

[0007] The technical scheme adopted by the utility model is:

[0008] A drill collar based on machine of opening iron mouth, comprising:

[0009] A drill collar main body, one end of which is provided with a first connecting groove, and the other end is provided with a second connecting groove;

[0010] A convex block is arranged on the drill rod, and the convex block is matched with the second connecting slot to realize the connection of the drill rod and the drill rod tail sleeve body.

[0011] Wherein,

[0012] A force perpendicular to the axis of the drill rod is applied to generate a torque to drive the convex block to rotate by a certain angle, so that the convex block is clamped with the second connecting slot, thereby dispersing the concentrated stress point of the connection between the drill rod and the drill rod tail sleeve body into multiple stress points.

[0013] Optionally, the second connecting slot comprises:

[0014] A first slot is arranged at one end of the drill rod tail sleeve body and matched with the convex block and the drill rod.

[0015] A second slot is arranged at one end of the first slot and penetrates the first slot, and the second slot is matched with the drill rod.

[0016] A fixed slot is arranged in the radial direction of the first slot and penetrates the first slot, and the fixed slot is matched with the convex block.

[0017] Optionally, the drill rod tail abuts against one end of the second slot.

[0018] Optionally, the fixed slot comprises:

[0019] A first fixed slot is arranged in the radial direction of the first slot;

[0020] A second fixed slot is arranged in the radial direction of the first slot opposite to the first fixed slot.

[0021] Optionally, the circumferential angle of the first fixed slot and the second fixed slot is 49.5 degrees to 50.5 degrees.

[0022] Optionally, the convex block comprises:

[0023] A first convex block is arranged on the drill rod;

[0024] A second convex block is arranged on the drill rod opposite to the first convex block.

[0025] Optionally, the first convex block, the second convex block and the drill rod are located on the same horizontal plane.

[0026] Optionally, the first convex block is clamped with the first fixed slot, the second convex block is clamped with the second fixed slot, or the first convex block is clamped with the second fixed slot, and the second convex block is clamped with the first fixed slot.

[0027] Optionally, a flame baffle is integrally formed in the radial direction of the shank sleeve body.

[0028] Optionally, the shank sleeve body is made of high-strength alloy steel.

[0029] Compared with the prior art, the utility model has the beneficial effects that:

[0030] In the utility model, the convex block is arranged in the radial direction of the drill rod, then a connecting groove matched with the convex block is formed in the shank sleeve body, the concentrated stress point of the drill rod and the shank sleeve body is dispersed into multiple stress points through the mutual cooperation of the convex block and the connecting groove, the pressure of the drill rod and the shank sleeve body is dispersed through the mode of the dispersed stress point, thereby the risk of the deformation of the drill rod at the connecting position of the drill rod and the shank sleeve body is reduced, the drill rod is not taken out from the shank sleeve and replaced due to the deformation, thereby the problem of low work efficiency of the iron mouth opening machine is solved. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0032] Figure 1 It is a sectional view of the shank sleeve body and the flame baffle in the present application.

[0033] Figure 2 It is a structure schematic view of the convex block and the drill rod in the present application.

[0034] REFERENCE NUMERALS:

[0035] 1, shank sleeve body; 11, first connecting groove; 12, second connecting groove; 121, first insertion groove; 122, second insertion groove; 123, first fixed slot; 124, second fixed slot;

[0036] 2, flame baffle;

[0037] 3, convex block; 31, first convex block; 32, second convex block;

[0038] 4, drill rod; 41, tail part; 42, head part. DETAILED DESCRIPTION

[0039] In the present utility model, the terms "first", "second" are only used for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.

[0040] In view of the fact that the stress point of the drill rod and the drill tail sleeve is too concentrated in the prior art, the end of the drill rod and the drill tail sleeve is prone to deformation, the drill rod is stuck in the drill tail sleeve and is not easy to take out, thereby causing the problem of low working efficiency of the iron mouth opening machine.

[0041] As shown in Figures 1-2 The utility model discloses an embodiment provides a drill tail sleeve based on iron mouth opening machine, include: drill tail sleeve main part 1, flame baffle 2 and lug 3.

[0042] Among them, the first connecting groove 11 is set up in the inside of one end of drill tail sleeve main part 1, the first connecting groove 11 extends along the direction of one end of drill tail sleeve main part 1 to the other end, and the groove wall of the first connecting groove 11 is provided with internal threads. The first connecting groove 11 is configured to realize the main place of connection of the drill tail sleeve main part 1 and the vibrating rod (not shown in the figure).

[0043] The second connecting groove 12 is set up in the inside of the other end of drill tail sleeve main part 1, and the second connecting groove 12 extends along the direction of the other end of drill tail sleeve main part 1 to the first connecting groove 11. The second connecting groove 12 is configured to realize the main place of connection of the drill tail sleeve main part 1 and the drill rod 4. Preferably, the drill tail sleeve main part 1 is made of high-strength alloy structural steel.

[0044] The flame baffle 2 is integrally formed in the radial direction of the drill tail sleeve main part 1, and is mainly configured to block the splashing of molten iron generated during the opening of the iron mouth to prevent the splashing of the molten iron from causing damage to other components. As a preferred embodiment, the flame baffle 2 is arranged above the second connecting groove 12. Preferably, the flame baffle 2 is made of A3 steel.

[0045] The lug 3 is arranged on the drill rod 4 and adjacent to the tail portion 41 of the drill rod 4, and the lug 3 cooperates with the second connecting groove 12 to realize the detachable connection of the drill rod 4 and the drill tail sleeve main part 1.

[0046] A force perpendicular to the axis of the drill rod 4 is applied to the drill rod 4, thereby generating a torque to drive the lug 3 to rotate by a certain angle, so that the lug 3 is clamped with the second connecting groove 12. The concentrated stress points at the connection of the drill rod 4 and the drill tail sleeve main part 1 are dispersed into multiple stress points through the cooperation of the lug 3 and the second connecting groove 12, and the pressure at the connection of the drill rod 4 and the drill tail sleeve main part 1 is dispersed in the form of dispersed stress points, thereby reducing the risk of deformation at the connection of the drill rod 4 and the drill tail sleeve main part 1.

[0047] Specifically, as shown in Figure 2 The protruding block 3 comprises a first protruding block 31 and a second protruding block 32.

[0048] The first protruding block 31 is arranged in the radial direction adjacent to the tail 41 of the drill rod 4. The second protruding block 32 is arranged in the radial direction opposite to the first protruding block 31 and adjacent to the tail 41 of the drill rod 4.

[0049] Preferably, the first protruding block 31, the drill rod 4 and the second protruding block 32 in the embodiment are located in the same horizontal plane. The arrangement of the first protruding block 31, the drill rod 4 and the second protruding block 32 in the same horizontal plane improves the uniformity of the force received by the first protruding block 31, the drill rod 4 and the second protruding block 32, thereby prolonging the service life of the first protruding block 31, the drill rod 4 and the second protruding block 32.

[0050] In the embodiment, the shapes of the first protruding block 31 and the second protruding block 32 are preferably columnar bodies. Preferably, the first protruding block 31 and the second protruding block 32 are made of 45 steel.

[0051] As shown in Figure 1 The second connecting groove 12 comprises a first insertion groove 121, a second insertion groove 122, a first fixed slot 123 and a second fixed slot 124.

[0052] The first insertion groove 121 and the second insertion groove 122 are sequentially arranged in the insertion direction of the tail 41 of the drill rod 4.

[0053] The first insertion groove 121 is adapted to the first protruding block 31, the drill rod 4 and the second protruding block 32, and the first protruding block 31, the drill rod 4 and the second protruding block 32 can freely pass through the first insertion groove 121.

[0054] The second insertion groove 122 is adapted to the drill rod 4, and the drill rod 4 can freely pass through the second insertion groove 122.

[0055] The first fixed slot 123 and the second fixed slot 124 are oppositely arranged in the radial direction adjacent to the second insertion groove 122 of the first insertion groove 121. The first fixed slot 123 and the second fixed slot 124 are respectively adapted to the first protruding block 31 and the second protruding block 32. The first protruding block 31 is clamped with the first fixed slot 123 to form a first stress point. The second protruding block 32 is clamped with the second fixed slot 124 to form a second stress point. Of course, the first protruding block 31 can also be clamped with the second fixed slot 124 to form a first stress point, and the second protruding block 32 can also be clamped with the first fixed slot 123 to form a second stress point.

[0056] In use, first, the chattering rod is placed in the first connecting groove 11, the connection between the chattering rod and the drill rod 4 is realized through the thread, then the drill rod 4 is held by hand, the first protrusion 31, the drill rod 4 and the second protrusion 32 are placed in the first insertion groove 121 in the direction of the first insertion groove 121 until the first protrusion 31 and the second protrusion 32 correspond to the first fixed slot 123 and the second fixed slot 124 respectively, then a force perpendicular to the axis of the drill rod 4 is applied to the drill rod 4, thereby generating a torque to drive the first protrusion 31 and the second protrusion 32 to rotate by a certain angle until the first protrusion 31 and the second protrusion 32 are clamped in the first fixed slot 123 and the second fixed slot 124 respectively, realizing the connection between the drill rod 4 and the drill rod 4. When the iron mouth opening machine is in the working state, the clamping positions of the first protrusion 31 and the first fixed slot 123 and the second protrusion 32 and the second fixed slot 124 will become the main two stress points. If the drill rod 4 is to be detached from the drill rod 4, the drill rod 4 is rotated in the opposite direction, and then the drill rod 4 is pulled out of the drill rod 4 along the direction of the first insertion groove 121.

[0057] Further, as a preferred embodiment, the circumferential angle of the first fixed slot 123 and the second fixed slot 124 is approximately 49.5 degrees to 50.5 degrees. The angle in this range can ensure that the drill rod 4 can be clamped in the drill rod 4 and facilitate the quick installation and disassembly of the drill rod 4.

[0058] Further, in order to further disperse the pressure at the connection between the drill rod 4 and the drill rod 4, in the present embodiment, the distance between the protrusion 3 and the tail 41 of the drill rod 4 is matched with the length of the second insertion groove 122, that is, the tail 41 of the drill rod 4 abuts against one end of the second insertion groove 122 adjacent to the first connecting groove 11, forming a third stress point. By increasing the stress point, the pressure at the connection between the drill rod 4 and the drill rod 4 is maximally dispersed.

[0059] Finally, it should be noted that the above description is only a preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features. Any modification, equivalent substitution, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A shank sleeve for a machine based on open mouth, characterized in that, The utility model relates to a drill rod tail sleeve main body, a drill rod tail sleeve main body and a drill rod are connected through a convex block, and the drill rod tail sleeve main body is provided with a first connecting groove and a second connecting groove. The utility model discloses a drill rod tail sleeve main body, a drill rod tail sleeve main body and a drill rod are connected through a convex block, and the drill rod tail sleeve main body is provided with a first connecting groove and a second connecting groove. Wherein, A force vertical to the drill rod axis is applied to the drill rod, and then a torque is generated to drive the convex block to rotate by a certain angle, so that the convex block is clamped with the second connecting groove, thereby dispersing the concentrated stress point of the connection between the drill rod and the drill rod tail sleeve main body into multiple stress points. The second connecting groove comprises:

2. The sleeve according to claim 1, characterized in that A first insertion groove is provided at one end of the drill rod tail sleeve main body and is matched with the convex block and the drill rod. A second insertion groove is provided at one end of the first insertion groove and is matched with the drill rod. A fixing slot is provided in the radial direction of the first insertion groove and is matched with the convex block. The drill rod tail is abutted at one end of the second insertion groove.

3. The sleeve according to claim 2, wherein The fixing slot comprises:

4. The sleeve of claim 2 wherein, A first fixing slot is provided in the radial direction of the first insertion groove. A second fixing slot is provided in the radial direction of the first insertion groove and is matched with the first fixing slot. The circumferential angle of the first fixing slot and the second fixing slot is 49.5 degrees to 50.5 degrees.

5. The sleeve according to claim 4, wherein The convex block comprises:

6. The sleeve of claim 4 wherein, A first convex block is provided on the drill rod. A second convex block is provided on the drill rod and is matched with the first convex block. The first convex block, the second convex block and the drill rod are located on the same horizontal plane.

7. The sleeve according to claim 6, wherein The first convex block is clamped with the first fixing slot, the second convex block is clamped with the second fixing slot, or the first convex block is clamped with the second fixing slot, and the second convex block is clamped with the first fixing slot.

8. The sleeve of claim 6 wherein, A flame baffle is integrally formed in the radial direction of the drill rod tail sleeve main body.

9. The sleeve of claim 1 wherein, The drill rod tail sleeve main body is made of high-strength alloy steel.

10. The sleeve of claim 1 wherein, ​

Images