CN209780764U - Bolt-fixed roller bit for quick-change rotary digging - Google Patents
Bolt-fixed roller bit for quick-change rotary digging Download PDFInfo
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- CN209780764U CN209780764U CN201920588472.1U CN201920588472U CN209780764U CN 209780764 U CN209780764 U CN 209780764U CN 201920588472 U CN201920588472 U CN 201920588472U CN 209780764 U CN209780764 U CN 209780764U
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Abstract
The utility model relates to a roller bit technical field specifically is a bolt fastening's quick change formula is dug soon and is used roller bit, including bottom plate, bit leg and bit, the bit leg hub connection that the bit leg established has the bit, and the bolt hole has been seted up to the upper surface both sides of bottom plate, and the inside locking elastic gasket that is provided with of draw-in groove that port department seted up on the bolt hole, the bolt hole inside run through there is the bolt, and bolt head end lower surface is equipped with the preforming, and beneficial effect is: the utility model discloses a two bolts and a brill section of thick bamboo carry out fixed connection, and it is all comparatively convenient to install and change, and the inside locking elastic gasket that is provided with of draw-in groove that the port was seted up on the bolt hole, and the bottom surface of draw-in groove cooperates the card through the concave burr of rectangle tooth with locking elastic gasket's lower surface and establishes, and the lower surface of the preforming that the bolt upper end was established is through the unsmooth line cooperation card of zigzag and is established, has guaranteed like this the utility model discloses under high-speed rotatory work, the difficult emergence of bolt is not hard up.
Description
Technical Field
The utility model relates to a roller bit technical field specifically is a bolt fastening's quick change formula is dug soon and is used roller bit.
Background
With the wide application of the rotary excavating gear wheel cylinder drill. Accordingly, the demand of the roller cone drill bit as a main cutting tool of the barrel drill is increasing, but at present, the conventional roller cone drill bit in the market is directly welded on the wall of the barrel drill for use, so that the difficulty of replacing the roller cone drill bit is increased, any effective positioning structure is not provided, the uniformity and the standard of the position of the roller cone drill bit on the drill barrel cannot be effectively ensured, and if the roller cone drill bit is fixed on the drill barrel through the conventional common bolt, the roller cone drill bit rotates at a high speed during working, so that the roller cone drill bit is easily loosened, and the roller cone drill bit which works in a loosening state is easily abraded.
disclosure of Invention
An object of the utility model is to provide a bolt fastening's quick change formula is dug soon and is used roller bit to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a roller bit for a bolt-fixed quick-change rotary digging comprises a bottom plate, a bit leg and a bit head, wherein the upper surface of the bottom plate is integrally formed with the bit leg, one side of the bit leg is provided with an inclined bit mounting surface, the bit mounting surface of the bit leg is integrally formed with a bit leg shaft, the bit leg shaft is perpendicular to the bit mounting surface of the bit leg, a mounting shaft hole is formed in the mounting surface of the bit head, the bit leg shaft is matched and connected with the mounting shaft hole of the bit head, the outer wall of the upper end part of the bit leg shaft and the inner wall of the mounting shaft hole of the bit head are provided with corresponding ball grooves, balls are arranged in the ball grooves, an oil duct is arranged in the bit leg shaft, a plurality of annular oil storage grooves are arranged in the middle of the inner wall of the mounting shaft hole formed in the bit head, bolt holes are formed in two sides of the upper surface of the bottom, the bolt hole is internally penetrated by a bolt, the lower surface of the bolt head end of the bolt is integrally formed with a pressing sheet, the lower surface middle part of the bottom plate is integrally formed with a positioning pin, and the positioning pin is perpendicular to the lower surface of the bottom plate.
Preferably, the oil passage penetrates through the upper end of the bit leg shaft, and penetrates out along the side wall of the bit leg.
Preferably, the opening of the installation shaft hole of the tooth head is provided with a sealing groove, a sealing ring is arranged in the sealing groove, and the sealing ring is tightly attached to the outer wall of the tooth palm shaft.
preferably, the bottom surface of the clamping groove is provided with rectangular tooth clamping concave grains, the rectangular tooth convex grains on the lower surface of the anti-loosening elastic gasket are matched with the rectangular tooth concave grains on the bottom surface of the clamping groove in a clamping mode, and the rectangular tooth convex grains on the lower surface of the anti-loosening elastic gasket are clamped.
Preferably, the upper surface of the anti-loosening elastic gasket is provided with sawtooth convex patterns, the lower surface of the pressing sheet is provided with sawtooth concave patterns, and the sawtooth convex patterns arranged on the pressing sheet are matched and clamped with the sawtooth concave patterns on the upper surface of the anti-loosening elastic gasket.
Compared with the prior art, the beneficial effects of the utility model are that:
1. The utility model is fixedly connected with the drill cylinder through two bolts, and the positioning pin arranged on the lower surface of the bottom plate is inserted into the positioning pin hole arranged on the drill cylinder in a matching way, so that the installation and the replacement are both convenient and fast, and the structural stability is strong;
2. The utility model discloses in, the inside locking elastic gasket that is provided with of draw-in groove that the port was seted up on the bolt hole, the bottom surface of draw-in groove cooperates the card through the concave burr of rectangle tooth with locking elastic gasket's lower surface and establishes, and the lower surface of the preforming that the bolt upper end was established cooperates the card through the zigzag asperity and establishes, has guaranteed like this the utility model discloses under high-speed rotatory work, the difficult emergence of bolt is not hard up.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the present invention;
Fig. 3 is a front view of the structure of the present invention;
fig. 4 is a side sectional view of the structure of the present invention.
In the figure: the anti-loosening device comprises a bottom plate 1, a bit leg 2, a bit head 3, a bit leg shaft 4, a positioning pin 5, a bolt hole 6, a clamping groove 7, a bolt 8, an anti-loosening elastic gasket 9, a pressing sheet 10, an oil duct 11 and an oil storage tank 12.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 4, the present invention provides a technical solution: a quick-change rotary drill bit for bolt fixing comprises a base plate 1, a bit leg 2 and a bit head 3, as shown in a combined drawing 1 and a combined drawing 4, wherein the bit leg 2 is integrally formed on the upper surface of the base plate 1, an inclined bit mounting surface is arranged on one side of the bit leg 2, a bit leg shaft 4 is integrally formed on the bit mounting surface of the bit leg 2, the bit leg shaft 4 is perpendicular to the bit mounting surface of the bit leg 2, a mounting shaft hole is formed in the mounting surface of the bit head 3, the bit leg shaft 4 is matched and connected with the mounting shaft hole of the bit head 3, the lower part of the back of the bit leg 2 is inwardly contracted by 3-5 degrees in the vertical direction, and meanwhile, bottom row alloy of the bit head 3 is higher than the highest point of the bit leg 2, so that the bit leg 2 is effectively prevented from being worn
referring to fig. 1 and 4, the outer wall of the upper end of the bit leg shaft 4 and the inner wall of the installation shaft hole of the bit head 3 are provided with corresponding ball grooves, balls are arranged in the ball grooves, an oil duct 11 is arranged in the bit leg shaft 4, the oil duct 11 penetrates through the upper end of the bit leg shaft 4, the oil duct 11 penetrates out along the side wall of the bit leg 2, lubricating oil can enter the joint of the bit leg shaft 4 and the installation shaft hole of the bit head 3 along the oil duct 11 and lubricate and cool the balls, the middle part of the inner wall of the installation shaft hole arranged in the bit head 3 is provided with a plurality of annular oil storage grooves 12, some lubricating oil can be remained, the joint of the installation shaft hole of the bit head 3 and the bit leg shaft 4 is lubricated and supplemented, abrasion is reduced, a sealing groove is arranged at the opening of the installation shaft hole of the bit head 3, a sealing ring is arranged in the sealing groove, the sealing ring is tightly attached to the, and prevent the ash powder from entering the joint of the installation shaft hole of the bit head 3 and the bit leg shaft 4 to cause blockage.
As shown in fig. 1, bolt holes 6 have been opened on both sides of the upper surface of the bottom plate 1, a slot 7 has been opened at the upper port of the bolt hole 6, rectangular teeth-locking concave grooves have been opened on the bottom surface of the slot 7, a locking elastic pad 9 is provided inside the slot 7, lower rectangular teeth convex patterns of the locking elastic pad 9, and rectangular teeth convex patterns of the lower surface of the locking elastic pad 9 and rectangular teeth concave grooves of the bottom surface of the slot 7 are engaged, so that the locking elastic pad 9 does not deflect inside the slot 7, a bolt 8 penetrates through the bolt hole 6, the bottom plate 1 can be fixedly mounted on a drill barrel through two bolts 8, which is convenient to install and replace, a pressing plate 10 is integrally formed on the lower surface of the bolt head end of the bolt 8, a saw-tooth convex pattern is provided on the upper surface of the locking elastic pad 9, a saw-tooth concave pattern is provided on the lower surface of the pressing plate 10, when the bolt 8 is connected with the drill And, no deflection takes place between preforming 10 and locking resilient pad piece 9 this moment, then has guaranteed the utility model discloses under high-speed rotatory work, the difficult emergence of bolt 8 is not hard up, and bottom plate 1's lower surface middle part integrated into one piece has locating pin 5, and 5 perpendicular bottom plate 1's of locating pin lower surface settings are equipped with the locating pin hole on the drill barrel equally, and the locating pin 5 cooperation is installed on the locating pin hole that the rotary drum was seted up, has guaranteed the utility model discloses structural stability after the installation.
The working principle is as follows: when the utility model is installed, two bolts 8 penetrate through two bolt holes 6 formed in the bottom plate 1, the two bolts 8 are fixedly connected with the drill cylinder, and the positioning pin 5 arranged on the lower surface of the bottom plate 1 is inserted into the positioning pin hole formed in the drill cylinder in a matching way, so that the installation and the replacement are both convenient, and the structural stability is strong; the locking elastic gasket 9 is arranged in the clamping groove 7 formed in the upper port of the bolt hole 6, the bottom surface of the clamping groove 7 and the lower surface of the locking elastic gasket 9 are matched and clamped through the rectangular tooth concave-convex pattern, and the lower surface of the pressing sheet 10 arranged at the upper end of the bolt 8 and the upper surface of the locking elastic gasket 9 are matched and clamped through the sawtooth-shaped concave-convex pattern, so that the bolt 8 is not easy to loosen under the high-speed rotation work of the utility model; as shown in fig. 4, the lubricating oil can enter the joint of the installation shaft hole formed by the bit leg shaft 4 and the bit 3 along the oil duct 11, and lubricate and cool the ball, and the middle part of the inner wall of the installation shaft hole formed by the bit 3 is provided with a plurality of annular oil storage tanks 12, and the oil storage tanks 12 can retain some lubricating liquid to lubricate and supplement the joint of the installation shaft hole of the bit 3 and the bit leg shaft 4, so as to reduce wear.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a bolt fastening's quick change formula is dug soon and is used roller bit, includes bottom plate (1), bit leg (2) and bit (3), its characterized in that: the upper surface of the bottom plate (1) is integrally formed with a bit leg (2), one side of the bit leg (2) is provided with an inclined drill bit mounting surface, the drill bit mounting surface of the bit leg (2) is integrally formed with a bit leg shaft (4), the bit leg shaft (4) is perpendicular to the drill bit mounting surface of the bit leg (2), a mounting shaft hole is formed in the mounting surface of the bit head (3), the bit leg shaft (4) is in fit connection with the mounting shaft hole of the bit head (3), the outer wall of the upper end portion of the bit leg shaft (4) and the inner wall of the mounting shaft hole of the bit head (3) are provided with corresponding ball grooves, balls are arranged in the ball grooves, an oil duct (11) is formed in the bit leg shaft (4), the middle portion of the inner wall of the mounting shaft hole formed in the bit head (3) is provided with a plurality of annular oil storage grooves (12), bolt holes (6) are formed in two sides of the upper surface of the bottom plate (1), and, draw-in groove (7) inside is provided with locking resilient pad (9), and bolt hole (6) inside runs through there is bolt (8), and the bolt head end lower surface integrated into one piece of bolt (8) has preforming (10), the lower surface middle part integrated into one piece of bottom plate (1) has locating pin (5), and the lower surface setting of locating pin (5) perpendicular bottom plate (1).
2. The bolt-fixed roller bit for the rotary excavating with the quick change according to claim 1, wherein: the oil duct (11) penetrates through the upper end of the bit leg shaft (4), and the oil duct (11) penetrates out along the side wall of the bit leg (2).
3. The bolt-fixed roller bit for the rotary excavating with the quick change according to claim 1, wherein: the opening of the installation shaft hole of the bit head (3) is provided with a sealing groove, a sealing ring is arranged in the sealing groove, and the sealing ring is tightly attached to the outer wall of the bit leg shaft (4).
4. The bolt-fixed roller bit for the rotary excavating with the quick change according to claim 1, wherein: rectangular tooth card concave lines are arranged on the bottom surface of the clamping groove (7), rectangular tooth convex lines are arranged on the lower surface of the anti-loosening elastic gasket (9), and the rectangular tooth convex lines on the lower surface of the anti-loosening elastic gasket (9) are matched with the rectangular tooth concave lines on the bottom surface of the clamping groove (7) to be clamped.
5. The bolt-fixed roller bit for the rotary excavating with the quick change according to claim 1, wherein: the upper surface of the anti-loosening elastic gasket (9) is provided with sawtooth convex patterns, the lower surface of the pressing sheet (10) is provided with sawtooth concave patterns, and the sawtooth convex patterns arranged on the pressing sheet (10) are matched and clamped with the sawtooth concave patterns on the upper surface of the anti-loosening elastic gasket (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920588472.1U CN209780764U (en) | 2019-04-27 | 2019-04-27 | Bolt-fixed roller bit for quick-change rotary digging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920588472.1U CN209780764U (en) | 2019-04-27 | 2019-04-27 | Bolt-fixed roller bit for quick-change rotary digging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209780764U true CN209780764U (en) | 2019-12-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920588472.1U Active CN209780764U (en) | 2019-04-27 | 2019-04-27 | Bolt-fixed roller bit for quick-change rotary digging |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112605676A (en) * | 2020-12-25 | 2021-04-06 | 南京宁庆数控机床制造有限公司 | Automatic clamping mechanism for cutter and operation method thereof |
| CN112832686A (en) * | 2020-07-23 | 2021-05-25 | 中石化江钻石油机械有限公司 | Quick-change roller bit and rotary drilling rig |
-
2019
- 2019-04-27 CN CN201920588472.1U patent/CN209780764U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112832686A (en) * | 2020-07-23 | 2021-05-25 | 中石化江钻石油机械有限公司 | Quick-change roller bit and rotary drilling rig |
| CN112605676A (en) * | 2020-12-25 | 2021-04-06 | 南京宁庆数控机床制造有限公司 | Automatic clamping mechanism for cutter and operation method thereof |
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