Quick connection device for modified anchor drill bit

Abstract

The present invention relates to a quick connection device for an anchor-changing machine drill bit, which includes a steel ball and a connection seat. The connection seat is installed on the connection pipe of the anchor-changing machine. The connection seat is provided with a connection hole, a sliding hole and a locking hole, and the steel ball is movably inserted into the locking hole; the driving block is slidably inserted into the sliding hole, and both ends are provided with a pressing-in inclined surface or a pressing-in arc surface; the connection sleeve is fixed on the connection seat and is arranged opposite to the sliding hole; the driving spring is located between the driving block and the connection sleeve; the locking sleeve is provided with a locking ring and a release ring, is slidably inserted on the connection seat and is arranged opposite to the locking hole; the tail of the drill bit is provided with a driving hole and an anti-disengagement hole, and the height of the drill bit is not higher than the height of the rail surface. This quick connection device for the anchor-changing machine drill bit realizes the rotation following of the drill bit through the driving block and the driving hole, and realizes the locking and loosening of the drill bit through the locking sleeve and the steel ball. The disassembly and assembly of the drill bit are convenient, rapid, highly safe, and do not affect the passage of trains. The drilling efficiency is high, the drill bit is not easily damaged, and the service life is long.

Description

Technical Field

[0001] The present invention relates to an anchor-changing machine, in particular to a quick connection device for the drill bit of the anchor-changing machine. Background Art

[0002] When the bolts for anchoring the railway tracks on the concrete sleeper tracks are damaged, an anchor-changing machine is usually used to drill holes, remove the damaged bolts, and then pour new bolts. Since a lot of anchor-changing work is carried out on the railway in normal use, when a train passes by, the work needs to be stopped. The existing anchor-changing machines need to pull out the drill bit together when the train comes, and then re-insert it into the hole to continue drilling after the train leaves. This method has the following problems:

[0003] 1. The time for pulling out the drill bit is relatively long, and for high-speed bullet trains, this maintenance method has a greater safety risk;

[0004] 2. The drill bit is easily damaged during the process of inserting and pulling out the drill bit. Summary of the Invention

[0005] In order to solve the above problems, the present invention provides a quick connection device for the drill bit of an anchor-changing machine that is not easy to damage the drill bit, can quickly separate the anchor-changing machine from the drill bit, and is also convenient for loading the drill bit. The specific technical solution is as follows:

[0006] The quick connection device for the drill bit of the anchor-changing machine includes a steel ball, and further includes: a connection seat, the connection seat is installed on the connection pipe of the anchor-changing machine, the connection seat is provided with a connection hole, a sliding hole and a locking hole, the sliding hole and the locking hole are both communicated with the connection hole, and the steel ball is movably inserted into the locking hole; a driving block, the driving block is slidably inserted into the sliding hole, and both ends of the driving block are provided with a pressing-in inclined surface or a pressing-in arc surface; a connection sleeve, the connection sleeve is fixed on the connection seat and is arranged opposite to the sliding hole; a driving spring, the driving spring is located between the driving block and the connection sleeve; a locking sleeve, the locking sleeve is provided with a locking ring and a releasing ring, the locking sleeve is slidably inserted on the connection seat and is arranged opposite to the locking hole; a drill bit, the tail of the drill bit is provided with a driving hole and an anti-detachment hole, and the height of the drill bit is not higher than the height of the rail surface; when locking the drill bit, the tail of the drill bit is inserted into the connection hole, the driving spring makes the driving block movably inserted into the driving hole, and the locking ring makes the steel ball inserted into the anti-detachment hole; when releasing the drill bit, the drill bit is pulled out when the locking sleeve slides to a position where the releasing ring corresponds to the steel ball.

[0007] By adopting the above technical solution, when drilling a hole for anchor modification, first slide the release ring to a position relative to the steel ball, then insert the tail of the drill bit into the connecting hole, and the tail of the drill bit automatically presses the driving block into the sliding hole. When the driving hole and the driving block are completely corresponding, the driving block is inserted into the driving hole to achieve the positioning of the drill bit, and then move the locking ring of the locking sleeve to a position relative to the steel ball, so that the steel ball retaining part is pressed into the locking hole, the steel ball cannot move, and thus the drill bit cannot be disassembled; when the drill bit needs to be removed, move the release ring to a position corresponding to the steel ball, then pull out the drill bit, and the drill bit presses the driving block into the sliding hole. The drill bit is very convenient to disassemble and assemble, and the connection is reliable, so that the drill bit can rotate synchronously with the anchor modification machine.

[0008] The height of the drill bit is not higher than the height of the rail surface, so it will not interfere with the wheels when the train is running, will not affect the passage of the train, and avoid safety accidents.

[0009] Since the drill bit can be quickly separated from the anchor machine, the safety is greatly improved. The drill bit does not leave the anchor hole, which will not cause damage or destruction to the drill bit, thereby increasing the service life of the drill bit.

[0010] Preferably, a positioning block is provided on the driving block, a positioning groove is provided in the sliding hole, and the positioning block corresponds to the positioning groove.

[0011] By adopting the above technical solution, the positioning block and the positioning groove are used to limit the depth of the driving block inserted into the connecting hole, thereby preventing the driving block from being separated from the sliding hole.

[0012] Preferably, the driving block is provided with at least one spring hole, and the driving spring is movably inserted into the spring hole.

[0013] By adopting the above technical solution, the spring hole facilitates the installation of the driving spring and enables the driving spring to maintain a good working condition.

[0014] Preferably, it also includes: a locking spring, which is movably inserted into the connecting seat; a first fixing ring, which is installed on the connecting seat and is located at one end of the locking sleeve; a spring ring is provided on the locking sleeve, and the locking spring is movably located in the spring ring, and the two ends of the locking spring are respectively connected to the first fixing ring and the bottom of the spring ring.

[0015] By adopting the above technical solution, the locking spring enables the locking sleeve to keep the locking ring and the steel ball relatively arranged, thereby preventing the locking sleeve from sliding freely and causing the ring and the steel ball to be loosened and relatively arranged, resulting in failure to lock the drill bit.

[0016] It also includes a retaining ring, which is installed in the first fixing groove of the connecting seat and is located above the first fixing ring.

[0017] By adopting the above technical solution, the snap ring is convenient to install and will not come off due to vibration, ensuring that the first fixing ring always presses the locking spring inside the spring ring and guaranteeing the reliable connection between the drill bit and the connecting seat.

[0018] Preferably, the connecting seat is further provided with a fixing hole, and the fixing hole is connected to the connecting pipe through a pin.

[0019] By adopting the above technical solution, the fixing hole and the pin provide good radial connection, ensuring the stable transmission of the torque of drilling.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The quick connection device for the anchor-changing machine drill bit provided by the present invention realizes the rotation following of the drill bit through the driving block and the driving hole, and realizes the locking and loosening of the drill bit through the locking sleeve and the steel ball. The disassembly and assembly of the drill bit are convenient, rapid, highly safe, and do not affect the passage of the train, improving the drilling efficiency. At the same time, the drill bit is not easily damaged, extending the service life of the drill bit. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of the quick connection device for the anchor-changing machine drill bit;

[0023] Figure 2 is a cross-sectional view of the quick connection device for the anchor-changing machine drill bit;

[0024] Figure 3 is Figure 2 a partial enlarged view of I in

[0025] Figure 4 is an exploded view of the quick connection device for the anchor-changing machine drill bit;

[0026] Figure 5 is a schematic structural diagram of the connecting seat;

[0027] Figure 6 is a cross-sectional view of the connecting seat;

[0028] Figure 7 is a connection schematic diagram of the drill bit. DETAILED DESCRIPTION OF THE INVENTION

[0029] The present invention will be further described below in conjunction with the accompanying drawings.

[0030] As Figures 1 to 7As shown in the figure, the quick connection device for the anchor-changing machine bit includes a steel ball 31, a connecting seat 1, a driving block 22, a connecting sleeve 21, a driving spring 23, a locking sleeve 32 and a bit 4; the connecting seat 1 is installed on the connecting pipe 51 of the anchor-changing machine. The connecting seat 1 is provided with a fixing hole 15, a connecting hole 18, a sliding hole 12 and a locking hole 14. The connecting hole 18 is used to insert the bit 4. The fixing hole 15 is connected to the connecting pipe 51 on the anchor-changing machine through a pin 29. The sliding hole 12 and the locking hole 14 communicate with the connecting hole 18. The steel ball 31 is movably inserted into the locking hole 14. The locking hole 14 is provided with a limiting ring 141 at one end of the connecting hole 18, and the limiting ring 141 prevents the steel ball 31 from falling off. The sliding hole 12 is provided with a positioning groove 13 at the end of the outer circular surface of the connecting seat 1; the driving block 22 is a rectangular block, and the driving block 22 is slidably inserted into the sliding hole 12. Both sides of the end of the driving block 22 located in the connecting hole 18 are provided with a pressing-in inclined surface 221 or a pressing-in arc surface. The other end of the driving block 22 is symmetrically provided with two positioning blocks 223, and the positioning blocks 223 are arranged opposite to the positioning groove 13 and are movably inserted into the positioning groove 13; the connecting sleeve 21 is fixed on the connecting seat 1 by screws and is arranged opposite to the sliding hole 12; the driving spring 23 is located between the driving block 22 and the connecting sleeve 21; the locking sleeve 32 is located above the connecting sleeve 21. The locking sleeve 32 is provided with a locking ring 321 and a release ring 322. The locking sleeve 32 is slidably inserted into the connecting seat 1 and is arranged opposite to the locking hole 14. The inner diameter of the locking ring 321 matches the outer diameter of the connecting seat 1. The inner diameter of the release ring 322 is larger than the inner diameter of the locking ring 321. The locking ring 321 and the release ring 322 are connected by an arc transition. The release ring 322 is located below the locking ring 321. When the steel ball 31 moves into the release ring 322, the steel ball 31 will not protrude into the interior of the connecting hole 18, which is convenient for pulling out the bit 4; the tail of the bit 4 is provided with a driving hole 41 and an anti-detachment hole 42, and the height of the bit 4 is not higher than the height of the rail surface; when locking the bit 4, the tail of the bit 4 is inserted into the connecting hole 18, the driving spring 23 makes the driving block 22 movably inserted into the driving hole 41, and the locking ring 321 makes the steel ball 31 inserted into the anti-detachment hole 42; when loosening the bit 4, the bit 4 is pulled out when the locking sleeve 32 slides to the position where the release ring 322 corresponds to the steel ball 31.

[0031] When drilling a hole for anchor modification, first slide the release ring 322 to a position relative to the steel ball 31, then insert the tail of the drill bit 4 into the connecting hole 18, and the tail of the drill bit 4 automatically presses the driving block 22 into the sliding hole 12 by pressing the inclined surface 221, and when the driving hole 41 completely corresponds to the driving block 22, the driving block 22 is inserted into the driving hole 41 to achieve the positioning of the drill bit 4, and then move the locking ring 321 of the locking sleeve 32 to a position relative to the steel ball 31, so that the steel ball 31 is kept partially pressed in the locking hole 14, and the steel ball 31 cannot move, thereby making the drill bit 4 unable to be disassembled; when the drill bit 4 needs to be removed, move the release ring 322 to a position corresponding to the steel ball 31, and then pull out the drill bit 4, and the drill bit 4 presses the driving block 22 into the sliding hole 12 by pressing the inclined surface 221. The assembly and disassembly of the drill bit 4 is very convenient, and the connection is reliable, so that the drill bit 4 can rotate synchronously with the anchor modification machine.

[0032] The height of the drill bit 4 is not higher than the height of the rail surface, so it will not interfere with the wheels when the train is running, will not affect the passage of the train, and avoid safety accidents.

[0033] Since the drill bit 4 can be quickly separated from the anchor machine, the safety is greatly improved, and the drill bit 4 does not leave the anchor hole, which will not cause damage or destruction to the drill bit 4, thereby improving the service life of the drill bit 4.

[0034] The positioning block 223 and the positioning groove 13 are used to limit the depth of the driving block 22 inserted into the connecting hole 18 to prevent the driving block 22 from being separated from the sliding hole 12 .

[0035] The fixing hole 15 and the pin 29 provide a good radial connection, ensuring that the drilling torque can be stably transmitted.

[0036] In some embodiments, two spring holes 222 are symmetrically provided on the driving block 22, and the driving spring 23 is movably inserted into the spring holes 222. The spring holes 222 facilitate the installation of the driving spring 23 and enable the driving spring 23 to maintain a good working state, and the two symmetrical driving springs 23 can improve stability.

[0037] In some embodiments, it also includes a locking spring 33, a first fixing ring 35 and a retaining ring 34, the locking spring 33 is movably inserted into the connecting seat 1; the first fixing ring 35, the first fixing ring 35 is installed on the connecting seat 1 and is located at one end of the locking sleeve 32; a spring ring 323 is provided on the locking sleeve 32, the spring ring 323 is located above the locking ring 321, and a shoulder is provided at the bottom of the spring ring 323; the locking spring 33 is movably located in the spring ring 323, and the two ends of the locking spring 33 are respectively connected to the shoulders of the first fixing ring 35 and the spring ring 323.

[0038] The clamping ring 34 is installed in the first fixing groove 16 of the connecting base 1 and is located above the first fixing ring 35;

[0039] The locking spring 33 enables the locking sleeve 32 to keep the locking ring 321 relative to the steel ball 31 to prevent the locking sleeve 32 from sliding freely, causing the ring 322 to be released relative to the steel ball 31, resulting in failure to lock the drill bit 4.

[0040] The retaining ring 34 is easy to install and will not be moved due to vibration, thereby ensuring that the first fixing ring 35 always presses the locking spring 33 into the spring ring 323 to ensure a reliable connection between the drill bit 4 and the connecting seat 1.

[0041] The technical principle of the present invention is described above in conjunction with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations herein, those skilled in the art can associate other specific implementations of the present invention without paying creative labor, and these methods will fall within the protection scope of the claims of the present invention.

Claims

1. The quick connection device for the anchor drill bit, comprising a steel ball (31), is characterized in that Further comprising: A connecting seat (1), the connecting seat (1) is installed on the connecting pipe (51) of the anchor-changing machine, the connecting seat (1) is provided with a connecting hole (18), a sliding hole (12) and a locking hole (14), the sliding hole (12) and the locking hole (14) are both communicated with the connecting hole (18), and the steel ball (31) is movably inserted into the locking hole (14); A driving block (22), the driving block (22) is slidably inserted into the sliding hole (12), and both ends of the driving block (22) are provided with pressing-in inclined surfaces (221) or pressing-in arc surfaces; A connecting sleeve (21), the connecting sleeve (21) is fixed on the connecting seat (1) and is arranged opposite to the sliding hole (12); A driving spring (23), the driving spring (23) is located between the driving block (22) and the connecting sleeve (21); A locking sleeve (32), the locking sleeve (32) is provided with a locking ring (321) and a release ring (322), the locking sleeve (32) is slidably inserted on the connecting seat (1) and is arranged opposite to the locking hole (14); A drill bit (4), the tail of the drill bit (4) is provided with a driving hole (41) and an anti-detachment hole (42), and the height of the drill bit (4) is not higher than the height of the rail surface; When locking the drill bit (4), the tail of the drill bit (4) is inserted into the connecting hole (18), the driving spring (23) makes the driving block (22) movably inserted into the driving hole (41), and the locking ring (321) makes the steel ball (31) inserted into the anti-detachment hole (42); When loosening the drill bit (4), when the locking sleeve (32) slides to the release ring (322) corresponding to the steel ball (31), the drill bit (4) is pulled out.

2. The quick connection device for the anchor-changing machine bit according to claim 1, characterized in that, The driving block (22) is provided with a positioning block (223), and the sliding hole (12) is provided with a positioning groove (13), and the positioning block (223) corresponds to the positioning groove (13); The positioning block (223) and the positioning groove (13) are used to limit the depth of the driving block (22) inserted into the connecting hole (18).

3. The quick connection device for the anchor-changing machine bit according to claim 1, characterized in that, The driving block (22) is provided with at least one spring hole (222), and the driving spring (23) is movably inserted into the spring hole (222).

4. The quick connection device for the anchor-changing machine drill bit according to claim 1, characterized in that, Further comprising: A locking spring (33), the locking spring (33) is movably inserted on the connecting seat (1); A first fixing ring (35), the first fixing ring (35) is installed on the connecting seat (1) and is located at one end of the locking sleeve (32); The locking sleeve (32) is provided with a spring ring (323), the locking spring (33) is movably located in the spring ring (323), and both ends of the locking spring (33) are respectively connected to the first fixing ring (35) and the bottom of the spring ring (323).

5. The quick connection device for the anchor-changing machine drill bit according to claim 4, characterized in that, Further comprising a snap ring (34), the snap ring (34) is installed in the first fixing groove (16) of the connecting seat (1) and is located above the first fixing ring (35).

6. The quick connection device for the anchor-changing machine drill bit according to claim 1, wherein, The connecting seat (1) is further provided with a fixing hole (15), and the fixing hole (15) is connected to a connecting pipe (51) through a pin (29).

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