Connecting device for drilling rod of tapping machine

Abstract

The utility model relates to a connecting device for a tapping machine drill rod, which relates to the technical field of blast furnace tapping machines and comprises a connecting seat, one end of the connecting seat is provided with a connecting groove, the top of the connecting seat is provided with a connecting hole, the connecting hole is communicated with the connecting groove, and the connecting hole penetrates through the bottom of the connecting seat. A connecting groove is formed in the top wall of the connecting seat, a connecting hole is formed in the top wall of the connecting seat, a connecting pin is jointly arranged in the connecting groove and the connecting hole, an inserting groove is formed in the connecting pin and located outside the connecting seat, an inserting plate is detachably arranged in the inserting groove and slidably connected with the top wall of the connecting seat, and a fastening assembly is arranged between the inserting plate and the connecting seat and used for making the inserting plate abut against the interior of the inserting groove. The method has the effects that the pin plate falling condition is reduced, and the blast furnace operates normally.

Description

Technical Field

[0001] The utility model relates to the technical field of blast furnace opening machines, in particular to a connecting device for a drill rod of an opening machine. Background Art

[0002] In blast furnace production, fully hydraulic opening machines are mostly used in front of the blast furnace. At present, in order to facilitate the replacement of drill rods on the fully hydraulic opening machines, the drill rods are usually installed on the fully hydraulic opening machines by plugging them into pin plates and sleeves.

[0003] In the related art, a Chinese patent with publication number CN201183800Y provides a blast furnace opening machine takeover, which includes a sleeve, and the interior of the sleeve is a two-stage stepped hollow structure. One section of the hollow structure inside the sleeve is a drill rod section, and the drill rod section is threaded to connect the drill rod. The other section of the hollow structure inside the sleeve is a drill rod section, and a pin hole is provided on the drill rod section. A drill rod is inserted in the drill rod section, and a groove is provided on the drill rod. A pin plate is inserted in the groove and the pin hole. A keyhole is provided on the pin plate, and a lock buckle is inserted in the keyhole. The end of the drill rod with the groove is inserted into the drill rod section of the sleeve, and then the pin plate is inserted into the groove and the pin hole, and the keyhole on the pin plate is located outside the sleeve. Finally, the lock buckle passes through the keyhole, so that the lock buckle abuts against the outside of the sleeve, and then the pin plate is limited on the sleeve.

[0004] In the process of implementing the present application, the inventors found that there are at least the following problems in this technology: when the opening machine body rotates and strikes at high speed, the lock buckle is easy to slip out of the keyhole, causing the pin plate to fall off and the drill rod to be stuck in the iron mouth. The iron mouth can only be opened by burning oxygen, resulting in too long opening time, causing a large amount of slag and iron to accumulate in the furnace, resulting in an increase in pressure difference, affecting the smooth operation of the blast furnace. Utility Model Content

[0005] In order to reduce the situation of pin plate falling off and ensure the normal operation of the blast furnace, the present application provides a connecting device for the drill rod of an opening machine.

[0006] The present application provides a connection device for a drill pipe of an opening machine, which adopts the following technical solution:

[0007] A connection device for a drill rod of an opening machine comprises a connection seat, a connection groove is provided on one end of the connection seat, a connection hole is provided on the top of the connection seat, the connection hole and the connection groove are communicated with each other, the connection hole passes through the bottom of the connection seat, a connection pin is provided in the connection groove and the connection hole, a slot is provided on the connection pin, the slot is located outside the connection seat, a plug plate is detachably provided in the slot, the plug plate is slidably connected to the top wall of the connection seat, a fastening component is provided between the plug plate and the connection seat, and the fastening component is used to make the plug plate abut against the slot.

[0008] By adopting the above technical scheme, the end of the drill rod with the groove is inserted into the connecting groove, and then the connecting pin is inserted into the connecting hole and the groove. When the connecting pin connects the drill rod and the connecting seat together, the plug plate on the connecting seat is slid to insert the plug plate into the slot, and then the plug plate is pressed against the slot through the fastening component, and then the plug plate limits the connecting pin, so that the connecting pin is not easy to move. When the opening machine body rotates and strikes at high speed, the plug plate is not easy to move and be damaged, which reduces the possibility of the connecting pin falling off, thereby reducing the possibility of blast furnace failure due to the falling of the drill rod.

[0009] Preferably, the fastening assembly comprises a group of fastening springs, which are symmetrically arranged on both sides of the plug board, one end of the fastening spring is fixedly connected to the side wall of the plug board, and the other end of the fastening spring is fixedly connected to the connecting seat.

[0010] By adopting the above technical solution, the tightening spring applies a pulling force to the plug board, and when the plug board is inserted into the slot, the outer wall of the plug board and the inner wall of the slot abut against each other, thereby making it difficult for the plug board to be separated from the slot.

[0011] Preferably, a spring seat is fixedly arranged at one end of the fastening spring, and the spring seat is fixedly arranged on the top wall of the connecting seat. The spring seat is located on both sides of the connecting hole, and a spring plate is commonly arranged on the other end of the fastening spring, and the spring plate is fixedly connected to the side of the plug plate away from the slot.

[0012] By adopting the above technical solution, the tightening spring applies a downward pulling force to the spring plate, and the spring plate applies a downward pushing force to the plug plate, thereby making the plug plate press against the slot and the connecting seat, thereby increasing the friction between the plug plate and the slot, and also increasing the friction between the plug plate and the connecting seat, making it difficult for the plug plate to move.

[0013] Preferably, a slide groove is provided on the top of the connecting seat, a slider is slidably arranged in the slide groove, and the top wall of the slider is fixedly connected to the bottom wall of the plug board.

[0014] By adopting the above technical solution, the plug plate is slidably set in the slide groove through the slider, and then the plug plate is slidably installed on the top wall of the connecting seat. At the same time, the slider limits the plug plate, so that the plug plate moves along the setting direction of the slide groove.

[0015] Preferably, a group of limit grooves are provided on the inner wall of the slide groove, the limit grooves are arranged opposite to each other, limit blocks are slidably arranged in the limit grooves, and the opposite surfaces of the limit blocks are fixedly connected to the sliding block.

[0016] By adopting the above technical solution, when the plug plate drives the slider to slide in the slide groove, the slider drives the limit block to slide in the limit groove, and the limit block makes it difficult for the slider to escape from the slide groove, thereby making it difficult for the plug plate to fall off the connecting seat.

[0017] Preferably, a limit head is fixedly provided on one end of the connecting pin away from the slot, and the limit head is located below the connecting seat.

[0018] By adopting the above technical solution, when the plug board is inserted into the slot, the top wall of the limit head and the bottom wall of the connecting seat abut against each other, so that the connecting pin is inserted into the connecting seat, reducing the possibility of the connecting pin falling off.

[0019] Preferably, the size of the limit head is larger than the size of the connecting hole, and the top wall of the limit head abuts against the bottom wall of the connecting seat.

[0020] By adopting the above technical solution, since the diameter of the limit head is larger than the diameter of the connecting hole, it is convenient for the limit head and the connecting seat to abut against each other, making it difficult for the limit head to enter the connecting hole.

[0021] Preferably, a connecting sleeve is fixedly disposed on the connecting seat, and the connecting sleeve is communicated with the connecting groove.

[0022] By adopting the above technical solution, the end of the drill rod with the groove is passed through the connecting sleeve and inserted into the connecting groove of the connecting seat. The connecting sleeve increases the contact area between the drill rod and the connecting seat, thereby improving the connection strength between the drill rod and the connecting seat. At the same time, the connecting sleeve provides support for the drill rod and reduces the bending of the drill rod.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. By setting the connection seat, connection groove, connection hole, connection pin, slot, plug plate and fastening assembly, the situation of connection pin falling off is reduced, thereby reducing the situation of blast furnace failure caused by drill pipe falling;

[0025] 2. By setting a fastening spring, the outer wall of the plug board and the inner wall of the slot are abutted against each other, so that the plug board is not easily separated from the slot;

[0026] 3. By setting the spring seat and the spring plate, the plug plate is not easy to move. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of a connection device for a drill rod of an opening machine in an embodiment of the present application.

[0028] Figure 2 It is a cross-sectional view showing the connection relationship between the connecting pin and the plug plate in the embodiment of the present application.

[0029] Figure 3 It is a cross-sectional view showing the connection relationship between the drill rod and the connecting seat in the embodiment of the present application.

[0030] Figure 4 It is a cross-sectional view showing the positional relationship between the connecting groove and the connecting hole in the embodiment of the present application.

[0031] Figure 5 It is a schematic diagram showing the positional relationship between the plug plate and the fastening spring in the embodiment of the present application.

[0032] Figure 6 It is a cross-sectional view showing the connection relationship between the plug board and the connecting socket in the embodiment of the present application.

[0033] Explanation of the accompanying drawings: 1. Connecting seat; 11. Connecting groove; 12. Connecting hole; 2. Connecting pin; 21. Slot; 3. Insert plate; 4. Fastening assembly; 41. Fastening spring; 411. Spring seat; 412. Spring plate; 5. Slider; 51. Slide groove; 6. Limit block; 61. Limit groove; 7. Limit head; 8. Connecting sleeve; 9. Drill rod; 91. Groove. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-6 This application is described in further detail.

[0035] The present application embodiment discloses a connection device for a drill pipe of an opening machine. Figures 1 to 4 , which comprises a connecting seat 1, a connecting groove 11 is provided on one end of the connecting seat 1 along the length direction, and the connecting groove 11 is for inserting a drill rod 9. A connecting hole 12 is provided on the top of the connecting seat 1 along the height direction, and the connecting hole 12 passes through the bottom of the connecting seat 1. The connecting hole 12 is communicated with the connecting groove 11, and a connecting pin 2 is inserted into both the connecting hole 12 and the connecting groove 11. A slot 21 is provided on one side of the connecting pin 2 close to the top along the width direction, and the slot 21 is located above the connecting hole 12. A plug-in plate 3 is detachably provided in the slot 21, and the plug-in plate 3 is slidably connected to the top wall of the connecting seat 1, and a fastening assembly 4 is installed between the plug-in plate 3 and the connecting seat 1, and the fastening assembly 4 is used to make the plug-in plate 3 abut against the slot 21. Insert one end of the drill rod 9 with the groove 91 into the connecting groove 11, and then insert the connecting pin 2 into the connecting hole 12 and the groove 91. After the connecting pin 2 plugs the drill rod 9 and the connecting seat 1 together, the plug plate 3 on the connecting seat 1 is slid to insert the plug plate 3 into the slot 21, and then the plug plate 3 is pressed against the slot 21 by the fastening assembly 4, so that the plug plate 3 limits the connecting pin 2, making it difficult for the connecting pin 2 to move. When the opening machine body rotates and strikes at high speed, the plug plate 3 is not easy to move or be damaged, which reduces the possibility of the connecting pin 2 falling off, thereby reducing the possibility of blast furnace failure caused by the falling of the drill rod 9.

[0036] In order to make the plugboard 3 not easily separated from the slot 21, refer to Figures 1 to 5The fastening assembly 4 includes a group of fastening springs 41, which are symmetrically mounted on both sides of the plug board 3 and are arranged obliquely. A spring seat 411 is mounted on one end of the fastening spring 41, which is welded on the top wall of the connecting seat 1, and the spring seat 411 is located on both sides of the connecting hole 12. A spring plate 412 is mounted on the other end of the fastening spring 41, and the spring plate 412 is welded to the side of the plug board 3 away from the slot 21. The fastening spring 41 applies an oblique downward pulling force to the spring plate 412, and the spring plate 412 applies an oblique downward thrust to the plug board 3. When the plug board 3 is inserted into the slot 21, the plug board 3 is pressed against the slot 21 and the connecting seat 1 under the action of the fastening spring 41, which increases the friction between the plug board 3 and the slot 21 on the one hand, and increases the friction between the plug board 3 and the connecting seat 1 on the other hand. In this way, the plug board 3 is not easy to move, and the plug board 3 is not easy to separate from the slot 21.

[0037] In order to slide the plug board 3 onto the top wall of the connecting seat 1, refer to Figures 1 to 6 A slide groove 51 is provided at the top of the connecting seat 1 along the length direction, and a slider 5 is slidably arranged in the slide groove 51, and the outer wall of the slider 5 is fitted with the inner wall of the slide groove 51. The top wall of the slider 5 is flush with the top wall of the connecting seat 1, and the top wall of the slider 5 is integrally formed with the bottom wall of the plug board 3. A group of limit grooves 61 are provided on the inner wall of the slide groove 51 along the length direction, and the limit grooves 61 are arranged oppositely. A limit block 6 is slidably arranged in the limit groove 61, and the outer wall of the limit block 6 is fitted with the inner wall of the limit groove 61, and the opposite surface of the limit block 6 is welded to the slider 5. The plug board 3 is slidably arranged in the slide groove 51 by the slider 5, so that the plug board 3 is slidably installed on the top wall of the connecting seat 1. At the same time, the slider 5 limits the plug board 3, so that the plug board 3 moves along the direction in which the slide groove 51 is set. When the plug board 3 drives the slider 5 to slide in the slide groove 51, the slider 5 drives the limit block 6 to slide in the limit groove 61. The limiting block 6 prevents the sliding block 5 from being easily separated from the sliding groove 51 , thereby preventing the plug board 3 from falling off the connecting seat 1 .

[0038] In order to reduce the possibility of the connecting pin 2 falling off, refer to Figure 1 and Figure 2 , a limit head 7 is installed on the bottom end of the connecting pin 2, and the limit head 7 is located below the connecting seat 1. The size of the limit head 7 is larger than the size of the connecting hole 12, and the top wall of the limit head 7 abuts against the bottom wall of the connecting seat 1. Since the diameter of the limit head 7 is larger than the diameter of the connecting hole 12, it is not easy for the limit head 7 to enter the connecting hole 12, which makes it easier for the limit head 7 to abut against the connecting seat 1. When the plug board 3 is inserted into the slot 21, the top wall of the limit head 7 abuts against the bottom wall of the connecting seat 1, so that the connecting pin 2 is inserted into the connecting seat 1, reducing the possibility of the connecting pin 2 falling off.

[0039] In order to improve the connection strength between the drill rod 9 and the connecting seat 1, refer to Figures 1 to 6The connecting seat 1 is integrally formed with a connecting sleeve 8, and the connecting sleeve 8 is connected to the connecting groove 11. After the end of the drill rod 9 with the groove 91 passes through the connecting sleeve 8, the end of the drill rod 9 with the groove 91 is inserted into the connecting groove 11 of the connecting seat 1. The connecting sleeve 8 increases the contact area between the drill rod 9 and the connecting seat 1, and the connecting sleeve 8 provides support for the drill rod 9, thereby improving the connection strength between the drill rod 9 and the connecting seat 1.

[0040] The implementation principle of the connection device for the drill rod of the opening machine in the embodiment of the present application is as follows: after passing the end of the drill rod 9 with the groove 91 through the connecting sleeve 8, the end of the drill rod 9 with the groove 91 is inserted into the connecting groove 11 of the connecting seat 1. Then pull the spring plate 412 so that the spring plate 412 drives the plug plate 3 away from the connecting hole 12. When the connecting hole 12 is fully exposed, the connecting pin 2 is passed through the connecting hole 12 and the groove 91. After the connecting pin 2 plugs the drill rod 9 and the connecting seat 1 together, the fastening spring 41 drives the plug plate 3 to move along the connecting seat 1 for reset, so that the plug plate 3 is inserted into the slot 21 under the action of the fastening spring 41, and then the plug plate 3 limits the connecting pin 2, so that the connecting pin 2 is not easy to move. When the opening machine body rotates and strikes at high speed, the plug plate 3 is limited by the fastening spring 41, the slider 5 and the limit block 6 and is not easy to move, which reduces the situation of the connecting pin 2 falling off, and thus reduces the situation of blast furnace failure caused by the falling of the drill rod 9.

[0041] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A connecting device for a drill pipe of an opening machine, comprising a connecting seat (1), a connecting groove (11) being provided on one end of the connecting seat (1), characterized in that: The top of the connection seat (1) is provided with a connection hole (12), the connection hole (12) and the connection groove (11) are communicated with each other, the connection hole (12) passes through the bottom of the connection seat (1), the connection groove (11) and the connection hole (12) are provided with a connection pin (2), the connection pin (2) is provided with a slot (21), the slot (21) is located outside the connection seat (1), a plug plate (3) is detachably provided in the slot (21), the plug plate (3) is slidably connected to the top wall of the connection seat (1), a fastening component (4) is provided between the plug plate (3) and the connection seat (1), the fastening component (4) is used to make the plug plate (3) abut against the slot (21).

2. A connection device for a drill pipe of a splitter according to claim 1, characterized in that: The fastening assembly (4) comprises a group of fastening springs (41), wherein the fastening springs (41) are symmetrically arranged on both sides of the plug board (3), one end of the fastening spring (41) is fixedly connected to the side wall of the plug board (3), and the other end of the fastening spring (41) is fixedly connected to the connecting seat (1).

3. A connection device for a drill pipe of a splitter according to claim 2, characterized in that: A spring seat (411) is fixedly arranged at one end of the fastening spring (41), and the spring seat (411) is fixedly arranged on the top wall of the connecting seat (1). The spring seat (411) is located on both sides of the connecting hole (12). A spring plate (412) is commonly arranged on the other end of the fastening spring (41), and the spring plate (412) is fixedly connected to a side of the plug board (3) away from the slot (21).

4. A connection device for a drill pipe of a splitter according to claim 1, characterized in that: A sliding groove (51) is provided on the top of the connecting seat (1), a sliding block (5) is slidably arranged in the sliding groove (51), and the top wall of the sliding block (5) is fixedly connected to the bottom wall of the plug board (3).

5. A connection device for a drill pipe of a splitter according to claim 4, characterized in that: A group of limiting grooves (61) are provided on the inner wall of the slide groove (51), the limiting grooves (61) are arranged opposite to each other, limiting blocks (6) are slidably arranged in the limiting grooves (61), and the opposite surface of the limiting block (6) is fixedly connected to the slide block (5).

6. A connection device for a drill pipe of a splitter according to claim 1, characterized in that: A limit head (7) is fixedly provided on one end of the connecting pin (2) away from the slot (21), and the limit head (7) is located below the connecting seat (1).

7. A connection device for a drill pipe of a splitter according to claim 6, characterized in that: The size of the limiting head (7) is larger than the size of the connecting hole (12), and the top wall of the limiting head (7) abuts against the bottom wall of the connecting seat (1).

8. The connecting device for a drill pipe of a splitter according to claim 1, characterized in that: A connecting sleeve (8) is fixedly arranged on the connecting seat (1), and the connecting sleeve (8) and the connecting groove (11) are communicated with each other.

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