CN217602588U - Hydraulic spiral drill arm of drill jumbo - Google Patents
Hydraulic spiral drill arm of drill jumbo Download PDFInfo
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- CN217602588U CN217602588U CN202221630542.3U CN202221630542U CN217602588U CN 217602588 U CN217602588 U CN 217602588U CN 202221630542 U CN202221630542 U CN 202221630542U CN 217602588 U CN217602588 U CN 217602588U
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Abstract
The utility model relates to a hydraulic pressure auger arm of drill jumbo belongs to mine drill jumbo equipment technical field. The technical scheme is as follows: piston body and inside and outside screw sleeve are whole to be welded and are constituteed the piston, and reciprocating motion is done to the piston under the promotion of cavity hydraulic oil about in the gyration cylinder body, simultaneously because the ring gear is fastened and can not rotate for the mounting on the internal conical surface, under the vice cooperation of spiral spline, rotary motion (similar lead screw mechanism) is also done to the piston when doing linear motion, because the vice one of spiral spline is opposite with the vice two rotations of spiral spline, and the rotation axis is the equidirectional rotation under the vice cooperation of spiral spline. The utility model discloses an actively the effect: the strength and the rigidity of the root of the drill boom are enhanced in the using state of the drill boom, the characteristic that the hollow shaft has better rigidity is utilized, the rigidity of the drill boom is increased, the stability of the working supporting environment of the hydraulic rock drill is improved, and the hydraulic rock drill is suitable for the tunnel construction environment with smaller height size.
Description
Technical Field
The utility model relates to a hydraulic pressure spiral drill arm of drill jumbo belongs to mine drill jumbo equipment technical field.
Background
The rock drilling jumbo is rock drilling equipment for tunnel and underground engineering by adopting drilling and blasting method. The drilling machine can move and support a plurality of rock drills to drill holes simultaneously. The drill boom of the drill jumbo in the prior art generally adopts the traditional square tube appearance or solid shaft type, and the hydraulic spiral cylinder is installed at the front section of the drill boom, so that the rigidity, the length dimension and the radial dimension of the drill boom are mutually contradictory, and the drill boom is not suitable for the tunnel construction environment with smaller height dimension.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a hydraulic pressure spiral drill boom of drill jumbo hangs the end inside with hydraulic pressure spiral cylinder integration at the drill boom, strengthens the intensity and the rigidity of its root under the drill boom user state, utilizes the better characteristics of hollow shaft rigidity again, has increased drill boom rigidity, is favorable to increasing hydraulic rock drill's work support environmental stability, solves the above-mentioned problem that the background art exists.
The technical scheme of the utility model is that:
a hydraulic spiral drill boom of a drill jumbo comprises a rotary cylinder body, a support pipe body, a rotary shaft, an inner gear ring, a piston body and inner and outer screw sleeves, wherein the piston body is arranged in the rotary cylinder body and reciprocates in the rotary cylinder body; the inner gear ring is annular, a first spiral inner spline is arranged on the inner hole wall of the inner gear ring, a first spiral outer spline and a second spiral inner spline which are opposite in spiral direction are respectively arranged on the excircle and the inner hole of the inner and outer spiral sleeves, the inner and outer spiral sleeves are inserted into the inner hole of the inner gear ring, and the first spiral outer spline of the inner and outer spiral sleeves is connected with the first spiral inner spline of the inner gear ring in a matching way; the rotary shaft consists of a rotary shaft screw shaft, a screw shaft jacket and a rotary shaft hollow pipe, the rear end of the rotary shaft hollow pipe is fixedly provided with the screw shaft jacket, the front end of the screw shaft jacket is closed, the rear end of the screw shaft jacket is provided with an opening, the rotary shaft screw shaft is fixed in the screw shaft jacket, the rotary shaft screw shaft, the screw shaft jacket and the rear part of the rotary shaft hollow pipe are all arranged in the branch pipe body, an annular space is arranged between the rotary shaft screw shaft and the screw shaft jacket, the inner screw sleeve and the outer screw sleeve are inserted into the annular space, a screw inner spline II of the inner screw sleeve and a screw outer spline II outside the rotary shaft screw shaft are connected in a matched mode, and the screw shaft jacket is fastened on the outer side of the inner screw sleeve through a supporting nut and a supporting bolt.
The piston body is provided with a piston guide ring and a piston combined seal, the piston guide ring guides the piston body, the piston body divides the inside of the rotary cylinder body into a left cavity and a right cavity, and the piston combined seal is used for sealing to prevent hydraulic oil in the left cavity or the right cavity of the rotary cylinder body from overflowing to the adjacent cavities.
The rear end of the branch pipe body is pressed on the inner gear ring, a mounting groove is formed in the inner wall of the rear end of the branch pipe body, the supporting nut is arranged in the mounting groove, thrust washers are arranged between the supporting nut and the inner gear ring and between the supporting nut and the side wall of the mounting groove, and the supporting bolt penetrates through the supporting nut to fasten the outer sleeve of the screw shaft on the outer side of the inner and outer screw sleeves.
An O-shaped ring is arranged on the outer wall of the branch pipe body and is positioned below the inner hexagonal screw; the inner wall of the branch pipe body is provided with a branch pipe body seal and a branch pipe body guide ring. The O-shaped ring and the branch pipe body are sealed to form an oil cylinder sealing space to seal the rotary cylinder body. And a rotating shaft guide ring, a branch pipe body guide ring and a rotating shaft guide ring are arranged on the outer wall of the rotating shaft to form radial positioning of the rotating shaft.
The end part of the front end of the branch pipe body is provided with a round nut and a round nut anti-loosening washer, the round nut is annular and is arranged on the outer side of the rotating shaft, and the round nut anti-loosening washer is arranged between the end part of the front end of the branch pipe body and the round nut. The arrangement of the round nut and the round nut anti-loose washer can prevent the radial deviation of the branch pipe body.
The front end of the rotating shaft is provided with a plurality of inner hexagon screws, and the inner hexagon screws are connected with relevant parts in an installing manner and output rotating torque.
The outer ring of the inner gear ring is in a circular truncated cone shape matched with the inner conical surface.
The rear ends of the inner and outer spiral sleeves are sealed through a sealing plug.
The spiral direction of a first spiral external spline of the internal and external spiral sleeves is the same as that of a first spiral internal spline of the internal gear ring, and the first spiral external spline is matched with the first spiral internal spline to form a first spiral spline pair; the spiral direction of a second spiral inner spline of the inner spiral sleeve and the spiral direction of a second spiral outer spline of the spiral shaft are the same, and the second spiral inner spline and the second spiral outer spline are matched to form a second spiral spline pair; and because the spiral direction of the first spiral external spline of the internal and external spiral sleeve is opposite to that of the second spiral internal spline, the first spiral spline pair and the second spiral spline pair are two spiral spline matching pairs with opposite spiral directions.
Piston body and inside and outside screw shell integral welding constitute the piston, and reciprocating motion is done to the piston under the promotion of cavity hydraulic oil about in the gyration cylinder body, simultaneously because the ring gear is fastened and can not rotate for the mounting on the internal conical surface, under the vice cooperation of spiral spline, rotary motion (similar lead screw mechanism) is also done to the piston when doing linear motion, because the vice one of spiral spline and the vice two rotations of spiral spline are opposite, and the revolving axle is the equidirectional rotation under the vice cooperation of spiral spline.
The utility model discloses an actively the effect: the strength and the rigidity of the root of the drill boom are enhanced in the using state of the drill boom, the characteristic that the hollow shaft has better rigidity is utilized, the rigidity of the drill boom is increased, the stability of the working supporting environment of the hydraulic rock drill is improved, and the hydraulic rock drill is suitable for the tunnel construction environment with smaller height size.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is an enlarged view of the portion A in FIG. 1;
FIG. 3 is a schematic view of the piston structure of the present invention;
FIG. 4 is a schematic view showing a partial structure of a rotating shaft according to the present invention;
FIG. 5 is an enlarged view of portion B of FIG. 1;
in the figure: the device comprises a rotary cylinder body 1, a piston guide ring 2, a piston combined seal 3, an O-shaped ring 4, an inner hexagonal screw 5, a branch pipe body 6, a rotary shaft guide ring 7, a round nut anti-loose washer 8, a round nut 9, an inner hexagonal screw 10, a rotary shaft 11, a rotary shaft spiral shaft 111, a spiral shaft outer sleeve 112, a rotary shaft hollow pipe 113, a dust ring 12, a branch pipe body seal 13, a branch pipe body guide ring 14, a thrust gasket 15, a support nut 16, an inner gear ring 17, a piston body 18, an inner and outer spiral sleeve 19, a seal plug 20, a linear oil cylinder pin shaft 21 and a drill boom rotating pin shaft 22.
Detailed Description
The invention is further described with reference to the following figures and examples:
a hydraulic spiral drill boom of a drill jumbo comprises a rotary cylinder body 1, a branch cylinder body 6, a rotary shaft 11, an inner gear ring 17, a piston body 18 and an inner and outer spiral sleeve 19, wherein the piston body 18 is arranged in the rotary cylinder body 1, the piston body 18 reciprocates in the rotary cylinder body 1, the inner and outer spiral sleeve 19 is of a sleeve structure with an opening at the front end and a closed rear end, the rear end of the inner and outer spiral sleeve 19 is fixed on the piston body 18, the inner wall of the opening at the front end of the rotary cylinder body 1 is an inner conical surface, the inner gear ring 17 is matched and arranged at the inner conical surface, the rear end of the branch cylinder body 6 is fixed at the front end of the rotary cylinder body 1 through an inner hexagon screw 5, and the inner gear ring 17 is tightly pressed on the inner conical surface; the inner gear ring 17 is annular, a first spiral inner spline is arranged on the inner hole wall of the inner gear ring 17, a first spiral outer spline and a second spiral inner spline which are opposite in spiral direction are respectively arranged on the excircle and the inner hole of the inner and outer spiral sleeves 19, the inner and outer spiral sleeves 19 are inserted into the inner hole of the inner gear ring 17, and the first spiral outer spline of the inner and outer spiral sleeves 19 is connected with the first spiral inner spline of the inner gear ring 17 in a matching manner; the rotating shaft 11 consists of a rotating shaft screw shaft 111, a screw shaft jacket 112 and a rotating shaft hollow pipe 113, the rear end of the rotating shaft hollow pipe 113 is fixedly provided with the screw shaft jacket 112, the front end of the screw shaft jacket 112 is sealed and provided with an opening at the rear end, the rotating shaft screw shaft 111 is fixed in the screw shaft jacket 112, the rotating shaft screw shaft 111, the screw shaft jacket 112 and the rear part of the rotating shaft hollow pipe 113 are all arranged in the branch pipe body 6, an annular space is arranged between the rotating shaft screw shaft 111 and the screw shaft jacket 112, the inner screw sleeve 19 and the outer screw sleeve 19 are inserted into the annular space, the spiral inner spline II of the inner screw sleeve 19 and the spiral outer spline II outside the rotating shaft screw shaft 111 are in matching connection, and the screw shaft jacket 112 is fastened outside the inner screw sleeve 19 through a supporting nut 16 and a supporting bolt.
The piston body 18 is provided with a piston guide ring 2 and a piston combined seal 3, the piston guide ring guides the piston body, the piston body divides the inside of the rotary cylinder body into a left cavity and a right cavity, and the piston combined seal is used for sealing to prevent hydraulic oil in the left cavity or the right cavity of the rotary cylinder body from overflowing to the adjacent cavities.
The rear end of the branch pipe body 6 is tightly pressed on the inner gear ring 17, the inner wall of the rear end of the branch pipe body 6 is provided with a mounting groove, the supporting nut 16 is arranged in the mounting groove, thrust washers 15 are arranged between the supporting nut 16 and the inner gear ring 17 and between the supporting nut 16 and the side wall of the mounting groove, the supporting bolt penetrates through the supporting nut 16, the screw shaft outer sleeve 112 is fastened on the outer sides of the inner and outer screw sleeves 19, and the rotary shaft 11 is axially positioned.
An O-shaped ring 4 is arranged between the branch pipe body 6 and the rotary cylinder body 1, and the O-shaped ring 4 is positioned below the inner hexagon screw 5; a branch pipe body seal 13 and a branch pipe body guide ring 14 are arranged between the branch pipe body 6 and the screw shaft outer sleeve 112; a rotating shaft guide ring 7 is arranged between the branch pipe body 6 and the rotating shaft hollow pipe 113. The O-shaped ring 4 and the branch pipe body seal 13 form an oil cylinder sealing space to seal the rotary cylinder body. The branch pipe body guide ring 14 and the revolving shaft guide ring 7 radially position the revolving shaft 11.
The front end of the branch pipe body 6 is in threaded connection with a round nut 9 and a round nut lock washer 8, the round nut 9 is annular and is arranged on the outer side of the rotating shaft 11, and the branch pipe body 6 is prevented from radial deviation.
The front end (output end) of the rotating shaft 11 is provided with a plurality of socket head cap screws 10 which are connected with relevant parts in an installing way and can output rotating torque.
The outer ring of the inner gear ring 17 is in a circular truncated cone shape matched with the inner conical surface, the inner conical surface is in matched contact with the circular truncated cone-shaped outer ring of the inner gear ring 17, and the inner conical surface is matched with the branch pipe body 6 to axially position the inner gear ring 17.
The rear ends of the inner and outer screw sleeves 19 are sealed by a sealing plug 20.
In the present embodiment, with reference to fig. 1-5:
the rotary cylinder body 1, the piston combined seal 3, the branch pipe body 6, the branch pipe body seal 13 and the rotary shaft 11 form an oil cylinder body together.
The piston is formed by integrally welding a piston body 18 and an inner and outer screw sleeve 19. The piston body 18 is arranged in the rotary cylinder body 1, and a piston guide ring 2 and a piston combined seal 3 are arranged on the piston body. The outer circle of the inner and outer spiral sleeve 19 is provided with a first right-handed external spline, an inner hole is provided with a first left-handed internal spline, an inner hole of the inner gear ring 17 is provided with a second right-handed internal spline, the outer surface of the rotary shaft spiral shaft 111 is provided with a second left-handed external spline, the spiral directions of the first spiral external spline and the first spiral internal spline are the same, the first spiral spline and the second spiral external spline are mutually matched to form a first spiral spline pair, the spiral directions of the second spiral internal spline and the second spiral external spline are the same, the first spiral spline pair and the second spiral spline pair are mutually matched to form a second spiral spline pair, and the first spiral spline pair and the second spiral spline pair have opposite spiral directions because the first spiral external spline pair and the second spiral internal spline pair have opposite spiral directions.
The front end of the rotary cylinder body 1 is opened, the inner wall of the opening is an inner conical surface, the space enclosed by the inner conical surface is in a circular truncated cone shape with a large front and a small back and is consistent with the shape of the inner gear ring 17, the inner gear ring 17 is pressed on the inner conical surface of the rotary cylinder body by the branch pipe body 6 through the inner hexagon screws 5 to form axial and radial positioning of the inner gear ring 17 and realize fastening by means of friction force, and a right-handed inner spline I is processed on an inner hole of the inner gear ring 17.
The rotating shaft is composed of a rotating shaft screw shaft 111, a screw shaft jacket 112 and a rotating shaft hollow tube 113 which are welded together. The outer surface of the rotating shaft screw shaft 111 is provided with a left-hand external spline II, and the outer sleeve 112 of the rotating screw shaft is provided with a plurality of threaded holes along the circumferential direction. The inner wall of the rear end of the branch pipe body 6 is provided with a mounting groove, a supporting nut 16 is arranged in the mounting groove, thrust washers 15 are arranged between the supporting nut 16 and an inner gear ring 17 and between the supporting nut 16 and the side wall of the mounting groove, supporting bolts are in threaded connection with threaded holes of the supporting nut 16 and a rotary screw shaft outer sleeve 112, the screw shaft outer sleeve 112 is fastened on the outer sides of an inner screw sleeve 19 and an outer screw sleeve 19, and the rotary shaft 11 is axially positioned. The branch pipe body 6 is provided with an O-shaped ring 4 and a branch pipe body seal 13 to form an oil cylinder sealing space for sealing the rotary cylinder body 1 and avoiding oil leakage. The branch pipe body 6 is provided with a branch pipe body guide ring 14 and a rotating shaft guide ring 7 to form radial positioning of the rotating shaft. The rightmost end of the rotating shaft 11 is provided with a plurality of socket head cap screws 10, and the socket head cap screws 10 are responsible for installation connection of related parts and output of rotating torque.
The utility model discloses a concrete action principle:
under the condition that oil is fed into the right cavity of the rotary cylinder body 1, the piston body 18 linearly moves leftwards, the inner and outer spiral sleeves 19 are driven to move leftwards, and relative rotary motion between the inner gear ring 17 and the rotary shaft 11 is formed under the action of the first spiral spline pair.
Because the inner gear ring 17 is pressed and fixed on the inner conical surface of the rotary cylinder body 1, the inner and outer screw sleeves 19 rotate clockwise (seen from the output end of the drill boom) while moving leftwards. Under the action of the second helical spline pair, the rotary shaft 11 synchronously rotates clockwise (seen from the output end of the drill boom) relative to the inner gear ring 17 and the rotary cylinder body 1. The two clockwise rotations are superimposed to form the clockwise rotation output (seen from the boom output) of the swivel shaft 11.
Under the condition of oil feeding of the left cavity of the rotary cylinder body, when the piston body 18 moves linearly rightwards, the inner and outer spiral sleeves 19 are driven to move rightwards, and relative rotary motion between the inner gear ring 17 and the rotary shaft 11 is formed under the action of the first spiral spline pair.
Because the inner gear ring 17 is pressed and fixed on the rotary cylinder body 1, the inner and outer screw sleeves 19 rotate anticlockwise (seen from the output end of the drill boom). Under the action of the spiral spline pair II, the rotary shaft 11 synchronously rotates anticlockwise (seen from the output end of the drill boom) relative to the inner gear ring 17 and the rotary cylinder body 1. The two counterclockwise rotations are superimposed to form a counterclockwise rotation output (as viewed from the boom output end) of the swivel shaft 11.
The above two cases form the rotation output of the rotary shaft 11 with respect to the rotary cylinder body.
The utility model discloses hang on drill boom swivel pin axle 22, drill boom swivel pin axle 22 sets up on the drill boom of drill jumbo, with the help of the promotion of sharp hydro-cylinder round pin axle 21 and the outside sharp hydro-cylinder that adds in addition, forms the every single move swing around drill boom swivel pin axle.
Claims (9)
1. The utility model provides a hydraulic pressure spiral drill arm of drill jumbo which characterized in that: the piston comprises a rotary cylinder body (1), branch pipe bodies (6), a rotary shaft (11), an inner gear ring (17), a piston body (18) and inner and outer screw sleeves (19), wherein the piston body (18) is arranged in the rotary cylinder body (1), the piston body (18) reciprocates in the rotary cylinder body (1), the inner and outer screw sleeves (19) are of a sleeve structure with an opening at the front end and a closed rear end, the rear ends of the inner and outer screw sleeves (19) are fixed on the piston body (18), the inner wall of the opening at the front end of the rotary cylinder body (1) is an inner conical surface, the inner gear ring (17) is arranged at the inner conical surface in a matching manner, the rear end of the branch pipe body (6) is fixed at the front end of the rotary cylinder body (1) through an inner hexagon screw (5), and the inner gear ring (17) is tightly pressed on the inner conical surface; the inner gear ring (17) is annular, a first spiral inner spline is arranged on the inner hole wall of the inner gear ring (17), a first spiral outer spline and a second spiral inner spline which are opposite in spiral direction are respectively arranged on the excircle and the inner hole of the inner and outer spiral sleeves (19), the inner and outer spiral sleeves (19) are inserted into the inner hole of the inner gear ring (17), and the first spiral outer spline of the inner and outer spiral sleeves (19) is connected with the first spiral inner spline of the inner gear ring (17) in a matching manner; the rotary shaft (11) consists of a rotary shaft screw shaft (111), a screw shaft jacket (112) and a rotary shaft hollow pipe (113), the screw shaft jacket (112) is fixedly arranged at the rear end of the rotary shaft hollow pipe (113), the front end of the screw shaft jacket (112) is closed, the rear end of the rotary shaft screw shaft (111) is opened, the rotary shaft screw shaft (111) is fixed in the screw shaft jacket (112), the rotary shaft screw shaft (111), the screw shaft jacket (112) and the rear part of the rotary shaft hollow pipe (113) are all arranged in the branch pipe body (6), an annular space is arranged between the rotary shaft screw shaft (111) and the screw shaft jacket (112), the inner and outer screw sleeves (19) are inserted into the annular space, the inner and outer screw splines two of the inner and outer screw sleeves (19) are connected with the outer screw splines two outside the rotary shaft screw shaft (111) in a matching manner, and the screw shaft jacket (112) is fastened outside the inner and outer screw sleeves (19) through supporting nuts (16) and supporting bolts.
2. A hydraulic auger arm for a rock drilling rig according to claim 1 wherein: and the piston body (18) is provided with a piston guide ring (2) and a piston combined seal (3).
3. A hydraulic auger arm for a rock drilling rig according to claim 1 wherein: the rear end of the branch pipe body (6) is pressed on the inner gear ring (17), a mounting groove is formed in the inner wall of the rear end of the branch pipe body (6), the supporting nut (16) is arranged in the mounting groove, thrust washers (15) are arranged between the supporting nut (16) and the inner gear ring (17) and between the supporting nut (16) and the side wall of the mounting groove, and the supporting bolt penetrates through the supporting nut (16) to fasten the outer sleeve (112) of the screw shaft outside the inner and outer screw sleeves (19).
4. A hydraulic auger arm for a rock drilling rig according to claim 1 or 3, wherein: an O-shaped ring (4) is arranged on the outer wall of the branch pipe body (6), and the O-shaped ring (4) is positioned below the inner hexagonal screw (5); the inner wall of the branch pipe body (6) is provided with a branch pipe body seal (13) and a branch pipe body guide ring (14).
5. A hydraulic auger arm for a rock drilling rig according to claim 1 or 3, wherein: and a rotating shaft guide ring (7) is arranged on the outer wall of the rotating shaft (11).
6. A hydraulic auger arm for a rock drilling rig according to claim 1 or 3, wherein: the end part of the front end of the branch pipe body (6) is provided with a round nut (9) and a round nut anti-loosening washer (8), the round nut (9) is annular and is arranged on the outer side of the rotating shaft (11), and the round nut anti-loosening washer (8) is arranged between the end part of the front end of the branch pipe body (6) and the round nut (9).
7. A hydraulic auger arm for a rock-drilling jumbo according to claim 1 or 3, wherein: the spiral direction of the spiral external spline I of the internal and external spiral sleeve (19) is the same as that of the spiral internal spline I of the internal gear ring (17), and the spiral direction of the spiral internal spline II of the internal and external spiral sleeve (19) is the same as that of the spiral external spline II of the rotary shaft spiral shaft (111).
8. A hydraulic auger arm for a rock drilling rig according to claim 1 or 3, wherein: the outer ring of the inner gear ring (17) is in a circular truncated cone shape matched with the inner conical surface.
9. A hydraulic auger arm for a rock-drilling jumbo according to claim 1 or 3, wherein: the rear ends of the inner and outer screw sleeves (19) are sealed by a sealing plug (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221630542.3U CN217602588U (en) | 2022-06-28 | 2022-06-28 | Hydraulic spiral drill arm of drill jumbo |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221630542.3U CN217602588U (en) | 2022-06-28 | 2022-06-28 | Hydraulic spiral drill arm of drill jumbo |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217602588U true CN217602588U (en) | 2022-10-18 |
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ID=83590710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221630542.3U Active CN217602588U (en) | 2022-06-28 | 2022-06-28 | Hydraulic spiral drill arm of drill jumbo |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217602588U (en) |
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2022
- 2022-06-28 CN CN202221630542.3U patent/CN217602588U/en active Active
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