Combined milling cone

Abstract

The utility model discloses a combined type milling cone which comprises a milling cone rod, a first alloy block, milling cone sleeves and a step ring, the upper surface of the step ring is in threaded connection with a second fixing bolt, an installation ring is arranged on the upper surface of the step ring, a plurality of limiting rods are fixedly connected to the lower surface of the installation ring, and the milling cone rod is sleeved with the plurality of milling cone sleeves. Insertion grooves are formed in the side faces of the taper milling sleeves, the first alloy blocks are installed in the insertion grooves, the outer portions of the limiting rods are slidably connected with the interiors of the first alloy blocks, the lower surfaces of the taper milling rods are in threaded connection with first fixing bolts, the lower ends of the taper milling rods are sleeved with bottom caps, and the taper milling sleeves are matched with the limiting rods through second fixing bolts, installation rings and the limiting rods. When the first alloy blocks are seriously abraded, the first alloy blocks of the corresponding parts can be independently replaced, overall replacement is not needed, the taper mill is economical, and the length of the taper mill can be adjusted within an allowable range according to needs through mutual cooperation of the first fixing bolts, the bottom caps and the reserved grooves.

Description

TECHNICAL FIELD

[0001] The utility model relates to oilfield downhole tool technical field, concretely is a combined milling cone. BACKGROUND

[0002] The milling cone is an important repair tool in the overhaul well construction, and can utilize the external tooth milling shoe or the hard alloy block or the tungsten steel powder surfacing hardness, can gradually the scale, burrs, burrs etc.

[0003] The existing milling cone can cause the alloy block to wear seriously after long-term use, needs to replace integrally, and the length of the milling cone is inconvenient to adjust according to specific needs, the utility model device, when the alloy block wears seriously, can replace the alloy block of corresponding part individually, need not to replace integrally, is more economical and can adjust the length of the milling cone within the allowable range as required. UTILITY MODEL CONTENTS

[0004] The utility model discloses a kind of combined milling cone, solve in long-term use can cause the alloy block to wear seriously, need to replace integrally, the problem of higher economic cost and the length of the milling cone is inconvenient to adjust according to specific needs.

[0005] To achieve the above-mentioned purpose, provide a kind of combined milling cone, including: milling cone rod, first alloy block, milling cone sleeve and step ring, the second fixed bolt is connected on the upper surface of the step ring, the mounting ring is arranged on the upper surface of the step ring, the lower surface of the mounting ring is fixedly connected with multiple limit rods, multiple milling cone sleeves are all sleeved in the outside of milling cone rod, multiple milling cone sleeve sides are all provided with slot, the first alloy block is installed in the inside of slot, the limit rod outside is slidably connected with the inside of first alloy block, by the cooperation of second fixed bolt, mounting ring and limit rod, when first alloy block wears seriously, corresponding part of first alloy block can be replaced individually, need not to replace integrally, it is more economical to save economy;

[0006] The lower surface of the milling cone rod is connected with the first fixed bolt, the bottom cap is sleeved at the lower end of the milling cone rod, the inside of the bottom cap is connected with the outside of the first fixed bolt, the inside of the bottom cap is provided with reserved slot, the inside of the reserved slot is slidably connected with the lower end of the limit rod, by the cooperation of first fixed bolt, bottom cap and reserved slot, the length of the milling cone can be adjusted within the allowable range as required.

[0007] According to the combined milling cone, the upper part of the milling cone rod is a cylinder, and the lower part of the milling cone rod is a cuboid. The lower part of the milling cone rod is a cuboid, which can prevent the milling cone sleeve from rotating and make the installation more stable.

[0008] According to the combined milling cone, the plurality of milling cone sleeve sides are provided with a plurality of guide grooves, and the adjacent two milling cone sleeves are attached to each other, the guide grooves facilitate the discharge of the polishing debris, and the milling cone sleeves are attached to each other, which is beneficial to increase the integrity of the device.

[0009] According to the combined milling cone, the bottom cap side surface is fixedly connected with a second alloy block, and the bottom cap is internally provided with a mounting groove, so that the bottom cap can adapt to the length surface of the milling cone rod in the mounting groove when the length of the milling cone is adjusted.

[0010] According to the combined milling cone, the milling cone rod upper surface is provided with a mounting hole, and the milling cone rod side surface is provided with a fixing hole, so that the device can be conveniently mounted and fixed.

[0011] According to the combined milling cone, the step ring inner wall is fixedly connected with the upper part of the milling cone rod, and the step ring lower surface is attached to the upper surface of the milling cone sleeve, so that the integrity of the device is better.

[0012] According to the combined milling cone, the plurality of milling cone sleeves are the same in shape and size, the size of the insertion slot is matched with the size of one end of the first alloy block, and the stability of the installation of the alloy block is increased.

[0013] According to the combined milling cone, the size of the reserved slot is matched with the size of the limiting rod, and the size of the upper end of the bottom cap is the same as the size of the milling cone sleeve, so that the limiting rod can be limited by the reserved slot, and the stability of the installation of the first alloy block is increased.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. When the first alloy block is seriously worn, the second fixing bolt is disassembled, the limiting of the mounting ring is released, the mounting ring and the limiting rod are conveniently pulled out, the first alloy block of the damaged part is pulled out from the insertion slot, the milling cone does not need to be replaced as a whole, only the damaged part is replaced, and the economy is saved.

[0016] 2. When the length of the milling cone needs to be changed, the first fixing bolt is disassembled, the limiting of the bottom cap and the second alloy block is released, the number of the milling cone sleeves is conveniently reduced or increased, then the first fixing bolt of the corresponding length is mounted, the bottom cap is fixed, the change of the length of the limiting rod in the bottom cap is conveniently adapted through the reserved slot, the length of the milling cone can be adjusted within the allowed range according to the needs of the staff, and the economy is saved.

[0017] The additional aspects and advantages of the utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0018] The utility model further illustrates below combining the drawings and examples;

[0019] Figure 1 It is the sectional view of a combined milling cone of the utility model;

[0020] Figure 2 It is the sectional view of a combined milling cone of the utility model;

[0021] Figure 3 It is the sectional view of a combined milling cone of the utility model;

[0022] Figure 4 It is a combined milling cone of the utility model Figure 1 The enlarged view of A place in the utility model.

[0023] In the drawing: 1, milling cone rod, 2, step ring, 3, first alloy block, 4, second alloy block, 5, milling cone sleeve, 6, insertion slot, 7, limiting rod, 8, mounting ring, 9, bottom cap, 10, first fixed bolt, 11, second fixed bolt, 12, flow guide groove, 14, reserved slot. Specific implementation

[0024] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative efforts belong to the range of protection of the utility model.

[0025] Please refer to Figures 1-4 The utility model embodiment provides a kind of technical scheme: a combined milling cone, comprising: milling cone rod 1, first alloy block 3, milling cone sleeve 5 and step ring 2, step ring 2 upper surface is connected with second fixed bolt 11 by screw thread, second fixed bolt 11 is used to fixed mounting ring 8, step ring 2 upper surface is provided with mounting ring 8, the lower surface of mounting ring 8 is fixedly connected with multiple limiting rods 7, limiting rod 7 is used to limit first alloy block 3, multiple milling cone sleeves 5 are all sleeved in the outside of milling cone rod 1, multiple milling cone sleeves 5 side are all provided with insertion slot 6, first alloy block 3 is installed in insertion slot 6 inside, insertion slot 6 facilitates the installation of first alloy block 3, limiting rod 7 outside and first alloy block 3 inside are slidably connected;

[0026] The lower surface of the milling cone rod 1 is threadedly connected with the first fixing bolt 10, the first fixing bolt 10 can be adjusted according to the need, the lower end of the milling cone rod 1 is sleeved with the bottom cap 9, which is convenient to adapt to the length change of the milling cone, the inside of the bottom cap 9 is threadedly connected with the outside of the first fixing bolt 10, the inside of the bottom cap 9 is provided with the reserved slot 14, the reserved slot 14 can adapt to the length change of the limiting rod 7 caused by the adjustment of the milling cone, and the inside of the reserved slot 14 is slidably connected with the lower end of the limiting rod 7.

[0027] The upper part of the milling cone rod 1 is a cylinder, and the lower part of the milling cone rod 1 is a cuboid, which can prevent the milling cone sleeve 5 from rotating, a plurality of flow guide grooves 12 are formed in the side surface of each of the milling cone sleeves 5, the two adjacent milling cone sleeves 5 are attached to each other, the side surface of the bottom cap 9 is fixedly connected with the second alloy block 4, the inside of the bottom cap 9 is provided with the mounting slot, the mounting slot is used for adapting to the length adjustment of the milling cone, the upper surface of the milling cone rod 1 is provided with the mounting hole, which is convenient to be mounted with the rotating shaft, the side surface of the milling cone rod 1 is provided with the fixing hole, which is used for mounting the auxiliary component and fixing the milling cone, the inner wall of the stepped ring 2 is fixedly connected with the upper part of the milling cone rod 1, the lower surface of the stepped ring 2 is attached to the upper surface of the milling cone sleeve 5, the plurality of milling cone sleeves 5 are the same in shape and size, the size of the insertion slot 6 is matched with the size of one end of the first alloy block 3, the size of the reserved slot 14 is matched with the size of the limiting rod 7, and the size of the upper end of the bottom cap 9 is the same as that of the milling cone sleeve 5.

[0028] Working principle: in use, the milling cone rod 1 is mounted on the rotating shaft, when the first alloy block 3 on the milling cone is seriously worn, the second fixing bolt 11 can be disassembled, then the mounting ring 8 and the limiting rod 7 are pulled out, then the damaged first alloy block 3 is pulled out from the inside of the insertion slot 6, the milling cone does not need to be replaced as a whole, only the damaged part is replaced, which is favorable for saving the economy, when the length of the milling cone needs to be changed, the first fixing bolt 10 can be disassembled, the bottom cap 9 and the second alloy block 4 are disassembled, then the number of the milling cone sleeves 5 is reduced or increased, then the bottom cap 9 is mounted by using the first fixing bolt 10 with the corresponding length, the reserved slot 14 is convenient to adapt to the length change of the limiting rod 7 in the inside of the bottom cap 9, the length of the milling cone can be adjusted within the allowable range according to the need of the staff, and the economy is saved.

[0029] The embodiments of the utility model are explained in detail above by combining with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by the ordinary skilled in the art without departing from the purpose of the utility model.

Claims

1. A modular milling cone comprising: The milling cone rod (1), the first alloy block (3), the milling cone sleeve (5) and the step ring (2) are characterized in that the upper surface of the step ring (2) is threadedly connected with a second fixing bolt (11), the upper surface of the step ring (2) is provided with a mounting ring (8), the lower surface of the mounting ring (8) is fixedly connected with a plurality of limiting rods (7), a plurality of the milling cone sleeves (5) are all sleeved outside the milling cone rod (1), a plurality of the milling cone sleeves (5) are all provided with a plurality of insertion grooves (6) on the side surfaces, the first alloy block (3) is installed in the insertion grooves (6), and the limiting rods (7) are in sliding connection with the first alloy block (3) inside. The lower surface of the milling cone rod (1) is threadedly connected with a first fixing bolt (10), the lower end of the milling cone rod (1) is sleeved with a bottom cap (9), the inside of the bottom cap (9) is threadedly connected with the outside of the first fixing bolt (10), the inside of the bottom cap (9) is provided with a reserved groove (14), and the inside of the reserved groove (14) is in sliding connection with the lower end of the limiting rod (7).

2. A modular milling cone as claimed in claim 1, wherein: The upper part of the milling cone rod (1) is a cylinder, and the lower part of the milling cone rod (1) is a cuboid.

3. A modular milling cone as in claim 1, wherein: The side surfaces of the plurality of milling cone sleeves (5) are all provided with a plurality of flow guide grooves (12), and the two milling cone sleeves (5) close to each other are in mutual adhesion.

4. A modular milling cone as defined in claim 1, wherein: The side surface of the bottom cap (9) is fixedly connected with a second alloy block (4), and the inside of the bottom cap (9) is provided with a mounting groove.

5. A modular milling cone as defined in claim 1, wherein: The upper surface of the milling cone rod (1) is provided with a mounting hole, and the side surface of the milling cone rod (1) is provided with a fixing hole.

6. A modular milling cone as defined in claim 1, wherein: The inner wall of the step ring (2) is fixedly connected with the upper part of the milling cone rod (1), and the lower surface of the step ring (2) is in adhesion with the upper surface of the milling cone sleeve (5).

7. A modular milling cone as in claim 1, wherein: The plurality of milling cone sleeves (5) are the same in shape and size, and the size of the insertion groove (6) is matched with the size of one end of the first alloy block (3).

8. A modular milling cone as in claim 1, wherein: The size of the reserved groove (14) is matched with the size of the limiting rod (7), and the size of the upper end of the bottom cap (9) is the same as the size of the milling cone sleeve (5).

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