Drill bit of heading machine

Abstract

The utility model relates to the technical field of heading machines, in particular to a heading machine drill bit which comprises a protective cover, a sliding groove is formed in the protective cover, a pushing block is connected in the sliding groove in a sliding mode, a limiting ring is fixedly installed at one end of the pushing block, and a positioning assembly is arranged in the limiting ring. A limiting ring is clamped in the positioning assembly, a drill bit is fixedly installed in the limiting ring, a pushing assembly is arranged in the pushing block, a mounting groove is formed in the top of the protection cover, a cleaning assembly is arranged in the mounting groove, and a sealing cover is fixedly installed at the top of the mounting groove. By means of the arrangement of a limiting ring, a positioning assembly and a limiting ring, in the using process, a worker inserts a drill bit into the limiting ring, then the positioning assembly installs the drill bit through the limiting ring, the efficiency of the worker for rapidly installing the drill bit is improved, and the time of the worker for carrying the drill bit is shortened.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of heading machine, concretely relates to a heading machine drill bit. BACKGROUND

[0002] The heading machine is a machine for digging a tunnel on a flat ground, and the heading machine has various types, is divided into an ordinary machine and a tunnel heading machine according to an operation object, is divided into an open type heading machine and a shield type heading machine according to an operation mode, and mainly comprises a walking mechanism, a working mechanism, a loading mechanism and a transfer mechanism. With the walking mechanism advancing forward, the cutting head in the working mechanism continuously breaks rock, and the broken rock is transported away. The heading machine has the advantages of safety, high efficiency and good tunneling quality, and a drill bit is arranged at the front end of the heading machine.

[0003] The drill bit of the heading machine disclosed in the publicity number CN220769467U, although, including main drill bit and support block, support block is located below main drill bit, main drill bit upper end is provided with installation slot, installation slot is matched with auxiliary drill bit, installation slot bottom end is provided with two positioning grooves, the both sides of auxiliary drill bit lower end are fixed with positioning block inserted into positioning groove, main drill bit middle part is through with insertion slot communicated with installation slot, auxiliary drill bit lower end middle part is fixed with insertion rod inserted into insertion slot, main drill bit and support block are equipped with locking assembly;The utility model discloses a main drill bit and auxiliary drill bit are combined into a whole heading drill bit, when the drill bit works, the auxiliary drill bit is equivalent to the most front end, so when the auxiliary drill bit is seriously worn, only the auxiliary drill bit needs to be replaced, and the whole drill bit does not need to be replaced, so compared with the prior art, the drill bit replacement and maintenance cost is lower, and it is economical and practical.

[0004] In the process of using the drill bit, the drill bit and the hard object underground collide, which is easy to damage, and the drill bit is inconvenient to replace after being damaged, and the drill bit is exposed to the outside world for a long time during storage, and the rainwater in the outside world can corrode the drill bit, reducing the service life of the drill bit. UTILITY MODEL CONTENTS

[0005] In view of the above-mentioned shortcomings of the prior art, the utility model provides a heading machine drill bit, which can effectively solve the problem that the drill bit and the hard object underground collide in the process of using the drill bit in the prior art, which is easy to damage, and the drill bit is inconvenient to replace after being damaged, and the drill bit is exposed to the outside world for a long time during storage, and the rainwater in the outside world can corrode the drill bit, reducing the service life of the drill bit.

[0006] To achieve the above purpose, the utility model realizes the following technical scheme:

[0007] The utility model provides a kind of heading machine drill bit, including protective cover, the inside of protective cover is equipped with sliding slot, the inside sliding connection of sliding slot has push block, the one end of push block is fixedly installed with limit ring, the inside of limit ring is provided with positioning assembly, the inside of positioning assembly is connected with limit ring, the inside fixed mounting of limit ring has drill bit, the inside of push block is provided with push assembly, the top of protective cover is equipped with installation groove, the inside of installation groove is provided with cleaning assembly, the top fixed mounting of installation groove has sealing cover.

[0008] The positioning assembly includes a positioning ring fixedly installed inside the limit ring, four corners inside the positioning ring are fixedly installed with telescopic rods, springs are sleeved on the surfaces of the telescopic rods, and clamping plates are fixedly installed at one end of the telescopic rods.

[0009] The spacing between the limit rings and the size of the clamping plates are matched, and sliding blocks are arranged on the surface of the clamping plates.

[0010] The push assembly includes a servo motor fixedly installed at the inner bottom of the protective cover, a threaded rod is fixedly installed at the output end of the servo motor, the threaded rod rotates in the inside of the push block, a guide rod is fixedly installed on one side of the back of the push block, a support ring is slidably connected to the surface of the guide rod, and the support ring is fixedly installed in the inside of the protective cover.

[0011] A guide groove is formed on the surface of the support ring, the size of the guide groove is matched with the size of the guide rod, and the guide rod slides in the inside of the support ring.

[0012] The cleaning assembly includes an air suction pump fixedly installed on one side of the top of the protective cover, a guide pipe is fixedly installed at the output end of the air suction pump, connecting pipes are fixedly installed on both sides of the guide pipe, and a plurality of air outlets are fixedly installed at the bottom of the connecting pipes.

[0013] An embedding groove is formed in the inside of the air outlet, and a filter screen is fixedly installed in the inside of the embedding groove.

[0014] Compared with the prior art, the technical scheme provided by the utility model has the following beneficial effects:

[0015] 1. By arranging the limit ring, the positioning assembly and the limit ring, the drill bit is inserted into the inside of the limit ring during use, and then the positioning assembly installs the drill bit through the limit ring, thereby improving the efficiency of quickly installing the drill bit by personnel and reducing the time of carrying the drill bit by personnel.

[0016] 2. By using the protective frame, push block, and push assembly together, the operator opens the push assembly during use. The protective cover then guides the push block, and the push assembly pushes the push block out through the protective cover. This improves the protection of the drill bit and reduces the risk of corrosion caused by prolonged exposure to the outside environment. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Fig. 1 This is a structural diagram of the present invention;

[0019] Fig. 2 This is an exploded structural diagram of the present invention;

[0020] Fig. 3 This is a structural diagram of the driving component of this utility model;

[0021] Fig. 4 This is a structural diagram of the positioning component of this utility model.

[0022] Reference numerals: 1. Protective cover; 2. Push block; 3. Limiting ring; 4. Positioning assembly; 41. Positioning ring; 42. Telescopic rod; 43. Spring; 44. Clamping plate; 5. Restricting ring; 6. Drill bit; 7. Pushing assembly; 71. Servo motor; 72. Threaded rod; 73. Guide rod; 74. Support ring; 8. Cleaning assembly; 81. Exhaust pump; 82. Guide tube; 83. Connecting tube; 84. Air outlet; 9. Sealing cover. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0024] The present invention will be further described below with reference to the embodiments.

[0025] Example: Refer to Figs. 1 to 4The utility model provides an excavator drill bit, including the protection cover 1, the inside of protection cover 1 is seted up with the sliding slot, the inside sliding connection has the push block 2 in the sliding slot, and one end of push block 2 is fixedly installed with the limit ring 3, and the inside of limit ring 3 is provided with the positioning assembly 4, and the inside of positioning assembly 4 is clamped with the restriction ring 5, and the inside of restriction ring 5 is fixedly installed with the drill bit 6;

[0026] With the setting of restriction ring 5, in the process of using, the limit ring 5 will be limited to the clamping plate 44, and in the process of limiting, the clamping plate 44 will be clamped between the limit ring 5.

[0027] The inside of push block 2 is provided with push assembly 7, and the top of protection cover 1 is provided with installation groove, and the inside of installation groove is provided with cleaning assembly 8, and the top of installation groove is fixedly installed with sealing cover 9.

[0028] Embodiment one:

[0029] Positioning assembly 4 includes the positioning ring 41 fixedly installed in the inside of limit ring 3, and the four corners in the inside of positioning ring 41 are fixedly installed with telescopic rod 42, and spring 43 is sleeved on the surface of telescopic rod 42, and one end of telescopic rod 42 is fixedly installed with clamping plate 44, and the spacing between restriction ring 5 is adapted to the size of clamping plate 44, and the surface of clamping plate 44 is provided with sliding block;

[0030] In the process of using, personnel will be inserted into the inside of limit ring 3 drill bit 6, then the limit ring 5 on drill bit 6 will be extruded to clamping plate 44, after clamping plate 44 is extruded, the spring 43 behind it will be extruded to clamping plate 44 through telescopic rod 42, and clamping plate 44 will enter between limit ring 5, and clamping plate 44 installs drill bit 6.

[0031] Embodiment two:

[0032] Push assembly 7 includes servo motor 71 fixedly installed in the inside bottom of protection cover 1, and the output end of servo motor 71 is fixedly installed with threaded rod 72, and threaded rod 72 rotates in the inside of push block 2, and the back of push block 2 is fixedly installed with guide rod 73, and guide rod 73 is slidably connected with support ring 74 on the surface, and support ring 74 is fixedly installed in the inside of protection cover 1, and the surface of support ring 74 is provided with guide groove, and the size of guide groove is adapted to the size of guide rod 73, and guide rod 73 slides in the inside of support ring 74;

[0033] In the process of using, personnel will be connected to power supply, and the output end will drive threaded rod 72 to rotate, and threaded rod 72 will drive push block 2 to move in the inside of protection cover 1 when rotating, and the guide rod 73 on the back of push block 2 will guide push block 2 through support ring 74, and the protection of drill bit 6 is improved.

[0034] Embodiment three:

[0035] The cleaning assembly 8 comprises an exhaust pump 81 fixedly installed on one side of the top of the protective cover 1, an output end of the exhaust pump 81 is fixedly installed with a guide pipe 82, both sides of the guide pipe 82 are fixedly installed with connecting pipes 83, the bottom of the connecting pipes 83 is fixedly installed with a plurality of air outlets 84, an embedded groove is arranged in the inside of the air outlet 84, and a filter screen is fixedly installed in the embedded groove;

[0036] In use, the personnel open the exhaust pump 81, after opening the exhaust pump 81, the personnel wind energy can enter the inside of the connecting pipe 83 through the guide pipe 82, then the wind energy blows downward through the air outlet 84, blows the dust on the surface of the drill bit 6 in the protective cover 1, and improves the cleanliness of the drill bit 6.

[0037] Working principle: the drill bit 6 is inserted into the inside of the limiting ring 3, then the limiting ring 5 on the drill bit 6 extrudes the clamping plate 44, after the clamping plate 44 is extruded, the spring 43 behind the clamping plate 44 extrudes the clamping plate 44 forward through the telescopic rod 42, the clamping plate 44 enters between the limiting rings 5, the clamping plate 44 installs the drill bit 6, after the drill bit 6 is installed and used, the personnel connect the power supply to the servo motor 71, the output end of the servo motor 71 drives the threaded rod 72 to rotate, when the threaded rod 72 rotates, the push block 2 moves in the inside of the protective cover 1, the guide rod 73 at the back of the push block 2 guides the push block 2 through the supporting ring 74, improves the protection of the drill bit 6, finally the drill bit 6 enters the inside of the protective cover 1, opens the exhaust pump 81, after opening the exhaust pump 81, the personnel wind energy enters the inside of the connecting pipe 83 through the guide pipe 82, then the wind energy blows downward through the air outlet 84, blows the dust on the surface of the drill bit 6 in the protective cover 1.

[0038] The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the protection scope of the technical solutions of the embodiments of the present application.

Claims

1. A heading machine drill bit comprising a protective cover (1), characterized in that: The inside of the protective cover (1) is provided with a sliding groove, the inside of the sliding groove is slidably connected with a push block (2), one end of the push block (2) is fixedly installed with a limiting ring (3), the inside of the limiting ring (3) is provided with a positioning assembly (4), the inside of the positioning assembly (4) is clamped with a limiting ring (5), the inside of the limiting ring (5) is fixedly installed with a drill bit (6), the inside of the push block (2) is provided with a pushing assembly (7), the top of the protective cover (1) is provided with a mounting groove, the inside of the mounting groove is provided with a cleaning assembly (8), the top of the mounting groove is fixedly installed with a sealing cover (9).

2. A boring head according to claim 1, characterized in that The positioning assembly (4) includes a positioning ring (41) fixedly installed in the limiting ring (3), four corners in the positioning ring (41) are fixedly installed with telescopic rods (42), the surfaces of the telescopic rods (42) are sleeved with springs (43), one end of the telescopic rod (42) is fixedly installed with a clamping plate (44).

3. A boring head according to claim 2, characterized in that The spacing between the limiting rings (5) and the size of the clamping plate (44) are matched, and the surface of the clamping plate (44) is provided with a sliding block.

4. A boring head according to claim 1, characterized in that The pushing assembly (7) includes a servo motor (71) fixedly installed at the inner bottom of the protective cover (1), the output end of the servo motor (71) is fixedly installed with a threaded rod (72), the threaded rod (72) rotates in the inside of the push block (2), one side of the back of the push block (2) is fixedly installed with a guide rod (73), the surface of the guide rod (73) is slidably connected with a supporting ring (74), and the supporting ring (74) is fixedly installed in the inside of the protective cover (1).

5. A boring head according to claim 4, wherein, The surface of the supporting ring (74) is provided with a guide groove, the size of the guide groove and the size of the guide rod (73) are matched, and the guide rod (73) slides in the inside of the supporting ring (74).

6. A boring head according to claim 1, wherein, The cleaning assembly (8) includes an air suction pump (81) fixedly installed on one side of the top of the protective cover (1), the output end of the air suction pump (81) is fixedly installed with a guide pipe (82), the two sides of the guide pipe (82) are fixedly installed with a connecting pipe (83), and the bottom of the connecting pipe (83) is fixedly installed with a plurality of air outlets (84).

7. A boring head according to claim 6, wherein, The inside of the air outlet (84) is provided with an embedding groove, and the inside of the embedding groove is fixedly installed with a filter screen.

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