CN211081760U - Rotating arm structure of rock drill - Google Patents
Rotating arm structure of rock drill Download PDFInfo
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- CN211081760U CN211081760U CN201921875951.8U CN201921875951U CN211081760U CN 211081760 U CN211081760 U CN 211081760U CN 201921875951 U CN201921875951 U CN 201921875951U CN 211081760 U CN211081760 U CN 211081760U
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Abstract
The utility model provides a rotor arm structure of rock drill, is including setting up the manipulator on the rotor arm, the rotor arm meets with actuating mechanism, be provided with the adapter sleeve between rotor arm and the actuating mechanism, this adapter sleeve is including the flange that docks that has first pilot hole, the first casing that has the second pilot hole and the second casing that has the third pilot hole, the both sides of first casing meet with flange and second casing seal respectively, first pilot hole, second pilot hole and third pilot hole coaxial line set up and communicate each other, flange meets with actuating mechanism, cartridge is in the second pilot hole after the tip of rotor arm passes the third pilot hole, the aperture of third pilot hole is greater than the aperture of second pilot hole. The expansion device comprises a positioning ring arranged in a second expansion hole, wherein the positioning ring is sleeved on a rotating arm and is in compression joint with an expansion sleeve, and more than two screws penetrate through the positioning ring and are in threaded connection with the expansion sleeve. The utility model has the characteristics of easy operation.
Description
Technical Field
The utility model relates to a rotor arm structure of rock drill.
Background
Chinese patent document No. CN 203347713U discloses, in 2013, 12 and 18, an automatic drill rod changing mechanism for a hydraulic drill carriage, which includes a push beam, a tray, a top cover, and a shifting device fixed on a fixed bracket on the push beam, a main rotating shaft connected between the tray and the top cover, the main rotating shaft being in transmission connection with a hydraulic motor in the shifting device, at least two rotating discs fixed on the main rotating shaft, a groove for storing a drill rod on the rotating discs, a drill rod magazine composed of the tray, the top cover, the main rotating shaft, and the rotating discs, an angle sensor mounted on the rotating discs for detecting an angle position, a drill rod supporter and a drill rod clamper fixed on the push beam and located at one side of the tray, and center lines of the drill rod supporter and the drill rod clamper being coaxial with a center of a rock drill; the bionic manipulator mechanism is arranged on the push beam and corresponds to the drill rod warehouse to fetch and store, and comprises two manipulators and a swing arm mechanism. The automatic drill rod changing mechanism of the hydraulic drill carriage is complex in structure and difficult to operate.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an easy rock drill's rotor arm structure of operating to overcome the weak point among the prior art.
The rotary arm structure of the rock drill is structurally characterized in that a connecting sleeve is arranged between the rotary arm and the driving mechanism and comprises a butt flange with a first assembling hole, a first shell with a second assembling hole and a second shell with a third assembling hole, the two sides of the first shell are respectively connected with the butt flange and the second shell in a sealing mode, the first assembling hole, the second assembling hole and the third assembling hole are coaxially arranged and communicated with each other, the butt flange is connected with the driving mechanism, the end portion of the rotary arm penetrates through the third assembling hole and then is inserted into the second assembling hole, and the aperture of the third assembling hole is larger than that of the second assembling hole.
Furthermore, the rotating arm structure of the rock drill further comprises an expansion sleeve, the third assembling hole comprises a first expansion hole and a second expansion hole which are coaxially arranged and are communicated with each other, the aperture of the first expansion hole is larger than that of the second assembling hole, the aperture of the second expansion hole is larger than that of the first expansion hole, and the first expansion hole is arranged between the second assembling hole and the second expansion hole; the expansion sleeve is arranged in the first expansion hole and sleeved on the rotating arm.
Furthermore, the rotor arm structure of rock drill still includes the holding ring that sets up in the second expands tight hole, and this holding ring cover is established on the rotor arm and the crimping is on the tight cover that expands, and the holding ring is passed to the more than two screws and is expanded tight cover threaded connection.
Furthermore, the length value of the expansion sleeve is greater than that of the first expansion hole, the end part of the expansion sleeve protrudes out of the first expansion hole, and the positioning ring in the second expansion hole is in compression joint with the expansion sleeve.
Further, the outer diameter of the positioning ring is smaller than the inner diameter of the second expansion hole.
Furthermore, a first key groove is formed in the inner wall of the second assembling hole, a second key groove is formed in the outer wall of the end portion of the rotating arm, and the positioning key is inserted into the first key groove and the second key groove respectively.
Further, the butt flange, the first shell and the second shell are of an integrally formed structure.
Furthermore, more than two manipulators are arranged on the rotating arm.
Further, the driving mechanism is a speed reducer.
The utility model provides a be provided with the adapter sleeve between rotor arm and the actuating mechanism, this adapter sleeve includes the docking flange that has first pilot hole, the first casing that has the second pilot hole and the second casing that has the third pilot hole, the both sides of first casing respectively with docking flange and second casing sealed meet, first pilot hole, second pilot hole and third pilot hole coaxial line set up and communicate each other, docking flange meets with the actuating mechanism, the tip of rotor arm passes the cartridge behind the third pilot hole in the second pilot hole, the aperture of third pilot hole is greater than the aperture of second pilot hole; the third assembling hole comprises a first expansion hole and a second expansion hole which are coaxially arranged and are mutually communicated, the aperture of the first expansion hole is larger than that of the second assembling hole, the aperture of the second expansion hole is larger than that of the first expansion hole, and the first expansion hole is arranged between the second assembling hole and the second expansion hole; the expansion sleeve is arranged in the first expansion hole and sleeved on the rotating arm; the rotating arm can be quickly assembled and disassembled through the connecting sleeve and the expansion sleeve, so that the assembling and disassembling strength is reduced; and when the installation position of the rotating arm needs to be adjusted, especially when the length of the rotating arm is not suitable, the rapid adjustment can be carried out through the design scheme, so that the strength of design, installation and maintenance is reduced.
The utility model discloses a theory of operation: the expansion sleeve is sleeved on the rotating arm, the butt flange is used for fixedly connecting the expansion sleeve with other components, if the butt flange is connected with the speed reducing mechanism, the expansion sleeve is sleeved on the rotating arm, after a high-strength bolt on the positioning ring is screwed, an expansion block on the expansion sleeve expands and deforms, huge holding force is generated between the outer wall of the expansion block and the inner wall of the connecting sleeve, and between the inner wall of the expansion block and the outer wall of the rotating arm, so that the expansion block is pressed on the rotating arm, gaps between the expansion sleeve and the rotating arm and between the expansion sleeve and the connecting sleeve are filled, operation steps between the expansion sleeve and the rotating arm are simplified, and the work efficiency of assembly of the expansion sleeve is improved.
The butt flange, the first shell and the second shell in the utility model are of an integrated structure; on the basis of ensuring enough intensity, the whole width and the length of the connecting sleeve body are reduced, so that the product is more compact.
The inner wall of the second assembling hole is provided with the first key groove, the first key groove is positioned on one side of the inner wall of the second assembling hole, and the first key groove is arranged along the axial direction of the second assembling hole; a second key groove corresponding to the first key groove is formed in the rotating arm, and a positioning key is arranged between the first key groove and the second key groove; after the rotating arm is installed into the connecting sleeve body, the positioning key is knocked in between the first key groove and the second key groove, so that the rotating arm serving as the rotating shaft cannot shift, and the assembling precision is improved.
To sum up, the utility model has the characteristics of easy operation.
Drawings
Fig. 1 is a schematic view of a three-dimensional structure of a connection sleeve in an embodiment of the present invention.
Fig. 2 is an axial sectional view of the connecting sleeve.
Fig. 3 is an enlarged view of fig. 2 taken along line a-a.
Fig. 4 is a partial schematic view of the present invention in use.
Fig. 5 is an enlarged partial cross-sectional view of P-P in fig. 4.
In the figure: 1 is the adapter sleeve, 2 is flange, 2.1 is first pilot hole, 3 is first casing, 3.1 is the second pilot hole, 3.1.1 is first keyway, 4 is the second casing, 4.1 is the third pilot hole, 4.1.1 is the first tight hole that expands, 4.1.2 is the second tight hole that expands, 5.1 is the holding ring, 5.2 is the tight cover that expands, 6 is the rotor arm, 6.1 is the second keyway, 7 is the manipulator, 8 is actuating mechanism.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
Referring to fig. 1-5, the rotating arm structure of the rock drill comprises a manipulator 7 arranged on a rotating arm 6, wherein the rotating arm 6 is connected with a driving mechanism 8, a connecting sleeve 1 is arranged between the rotating arm 6 and the driving mechanism 8, the connecting sleeve 1 comprises a butt flange 2 with a first assembling hole 2.1, a first shell 3 with a second assembling hole 3.1 and a second shell 4 with a third assembling hole 4.1, two sides of the first shell 3 are respectively connected with the butt flange 2 and the second shell 4 in a sealing manner, the first assembling hole 2.1, the second assembling hole 3.1 and the third assembling hole 4.1 are coaxially arranged and communicated with each other, the butt flange 2 is connected with the driving mechanism 8, the end part of the rotating arm 6 penetrates through the third assembling hole 4.1 and then is inserted into the second assembling hole 3.1, and the aperture of the third assembling hole 4.1 is larger than that of the second assembling hole 3.1.
In the present embodiment, the expansion sleeve 5.2 is i-shaped, and the second housing 4 is in the shape of an inverted cone.
The rotating arm structure of the rock drill further comprises an expansion sleeve 5.2 and an expansion sleeve 5.2, the third assembling hole 4.1 comprises a first expansion hole 4.1.1 and a second expansion hole 4.1.2 which are coaxially arranged and are communicated with each other, the aperture of the first expansion hole 4.1.1 is larger than that of the second assembling hole 3.1, the aperture of the second expansion hole 4.1.2 is larger than that of the first expansion hole 4.1.1, and the first expansion hole 4.1.1 is arranged between the second assembling hole 3.1 and the second expansion hole 4.1.2; the expansion sleeve 5.2 is arranged in the first expansion hole 4.1.1 and sleeved on the rotating arm 6.
The rotor arm structure of rock drill still includes the holding ring 5.1 that sets up in the second tight hole 4.1.2 that expands, and this holding ring 5.1 cover is established on rotor arm 6 and the crimping is on expanding tight cover 5.2, and the screw that more than two pass holding ring 5.1 and expand tight cover 5.2 threaded connection.
The length value L2 of the expansion sleeve 5.2 is greater than the length value L1 of the first expansion hole 4.1.1, the end of the expansion sleeve 5.2 protrudes out of the first expansion hole 4.1.1, and the positioning ring 5.1 in the second expansion hole 4.1.2 is pressed on the expansion sleeve 5.2.
The outer diameter of the positioning ring 5.1 is smaller than the inner diameter of the second expansion hole 4.1.2.
The inner wall of the second assembly hole 3.1 is provided with a first key groove 3.1.1, the outer wall of the end part of the rotating arm 6 is provided with a second key groove 6.1, and the positioning key is respectively inserted into the first key groove 3.1.1 and the second key groove 6.1.
The butt flange 2, the first shell 3 and the second shell 4 are of an integrally formed structure.
The rotating arm 6 is provided with more than two manipulators 7.
The driving mechanism 8 is a speed reducer.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. A rotating arm structure of a rock drill comprises a mechanical arm (7) arranged on a rotating arm (6), wherein the rotating arm (6) is connected with a driving mechanism (8), and is characterized in that a connecting sleeve (1) is arranged between the rotating arm (6) and the driving mechanism (8), the connecting sleeve (1) comprises a butt flange (2) with a first assembling hole (2.1), a first shell (3) with a second assembling hole (3.1) and a second shell (4) with a third assembling hole (4.1), two sides of the first shell (3) are respectively connected with the butt flange (2) and the second shell (4) in a sealing way, the first assembling hole (2.1), the second assembling hole (3.1) and the third assembling hole (4.1) are coaxially arranged and communicated with each other, the butt flange (2) is connected with the driving mechanism (8), the end part of the rotating arm (6) passes through the third assembling hole (4.1) and then is inserted into the second assembling hole (3.1), the aperture of the third assembly hole (4.1) is larger than that of the second assembly hole (3.1).
2. The rotor arm structure of the rock drill according to claim 1, characterized in that the rotor arm structure further comprises an expansion sleeve (5.2), the third assembly hole (4.1) comprises a first expansion hole (4.1.1) and a second expansion hole (4.1.2) which are coaxially arranged and are communicated with each other, the aperture of the first expansion hole (4.1.1) is larger than that of the second assembly hole (3.1), the aperture of the second expansion hole (4.1.2) is larger than that of the first expansion hole (4.1.1), and the first expansion hole (4.1.1) is arranged between the second assembly hole (3.1) and the second expansion hole (4.1.2); the expansion sleeve (5.2) is arranged in the first expansion hole (4.1.1) and sleeved on the rotating arm (6).
3. The rotor arm structure of the rock drill according to claim 2, characterized in that it further comprises a positioning ring (5.1) arranged in the second expansion hole (4.1.2), the positioning ring (5.1) is sleeved on the rotor arm (6) and pressed on the expansion sleeve (5.2), and more than two screws penetrate through the positioning ring (5.1) and are in threaded connection with the expansion sleeve (5.2).
4. A rotor arm structure in accordance with claim 3, c h a r a c t e r i z e d in that the length (L2) of the expansion sleeve (5.2) is greater than the length (L1) of the first expansion hole (4.1.1), that the end of the expansion sleeve (5.2) protrudes through the first expansion hole (4.1.1), and that the positioning ring (5.1) located in the second expansion hole (4.1.2) is pressed against the expansion sleeve (5.2).
5. The rotor arm structure of rock drilling machines according to claim 4, characterized in that the outer diameter of the positioning ring (5.1) is smaller than the inner diameter of the second expansion hole (4.1.2).
6. The rotor arm structure of the rock drill according to claim 2, characterized in that the inner wall of the second assembly hole (3.1) is provided with a first key slot (3.1.1), the outer wall of the end part of the rotor arm (6) is provided with a second key slot (6.1), and the positioning key is respectively inserted into the first key slot (3.1.1) and the second key slot (6.1).
7. The rotor arm structure of rock drilling machines according to claim 1, characterized in that the counterflange (2), the first housing (3) and the second housing (4) are of one-piece construction.
8. The rotor arm structure of rock drilling machines according to claim 1, characterized in that the rotor arm (6) is provided with more than two manipulators (7).
9. A rotor arm structure of a rock drilling machine according to claim 1, characterized in that the driving mechanism (8) is a reducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921875951.8U CN211081760U (en) | 2019-10-31 | 2019-10-31 | Rotating arm structure of rock drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921875951.8U CN211081760U (en) | 2019-10-31 | 2019-10-31 | Rotating arm structure of rock drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211081760U true CN211081760U (en) | 2020-07-24 |
Family
ID=71630347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921875951.8U Active CN211081760U (en) | 2019-10-31 | 2019-10-31 | Rotating arm structure of rock drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211081760U (en) |
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2019
- 2019-10-31 CN CN201921875951.8U patent/CN211081760U/en active Active
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