CN215053374U

CN215053374U - Multi-arm rock digging reamer

Info

Publication number: CN215053374U
Application number: CN202120977556.1U
Authority: CN
Inventors: 刘吉国; 张伟; 杨星; 李德军; 张富华
Original assignee: Tianjin Tanggu Xinhai Ship Engineering Co ltd
Current assignee: Tianjin Tanggu Xinhai Ship Engineering Co ltd
Priority date: 2021-05-08
Filing date: 2021-05-08
Publication date: 2021-12-07
Anticipated expiration: 2031-05-08

Abstract

The utility model discloses a multi-arm rock-digging reamer, which comprises a reamer ring and a reamer shaft hub, a plurality of reamer tool arms, be provided with a plurality of installation lug on the outer wall of reamer shaft hub, the one end of reamer tool arm all is provided with the mounting groove with installation lug adaptation, the one end that the mounting groove was kept away from to the reamer tool arm is connected with fixed lug, a plurality of supplies fixed lug male fixed orifices has been seted up at reamer tool ring top, a plurality of arc fixed slot has still been seted up to the bottom of reamer tool ring, every arc fixed slot all is located between two adjacent fixed orificess, arc fixed slot and fixed orifices intercommunication, reamer tool ring bottom still is provided with the retainer plate, be provided with the rotatory mounting of a plurality of on the retainer plate, rotatory mounting is including connecting vertical axis and arc fixed axle, arc fixed axle and arc fixed slot shape adaptation, set up the spacing hole that supplies the arc fixed axle to get into on the retainer plate. The utility model has the advantages of convenient and fast use, capability of replacing each reamer arm and prolonging the service life.

Description

Multi-arm rock digging reamer

Technical Field

The utility model relates to a dredge engineering technical field, in particular to multi-arm rock digging reamer.

Background

The dredger is a special ship for dredging water channels and river silt, and is usually positioned by using a positioning column, a reamer is placed on a bridge frame at a proper depth, and continuous cutting of a medium is realized through swinging of a bow at a certain angle and rotation of the reamer.

At present, the reamer that the dredge adopted adopts the general type reamer of six arms more, and the general type reamer of six traditional arms includes reamer sword circle, reamer shaft hub, reamer sword arm and reamer sword tooth and constitutes, can cause certain damage to reamer sword arm when excavating some stereoplasm soil for a long time, because reamer sword arm welds between reamer sword circle and reamer shaft hub, the use of whole reamer is influenced in a sword arm damage, has reduced life.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a multi-arm rock digging reamer, it has the swift convenience of use, can change every reamer sword arm, has prolonged life's advantage.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a multi-arm rock-digging reamer comprises a reamer cutter ring, a reamer shaft hub, a plurality of reamer cutter arms and a plurality of reamer cutter teeth, wherein a plurality of mounting lugs are arranged on the outer wall of the reamer shaft hub and are uniformly distributed along the circumferential direction of the reamer shaft hub, one end of each reamer cutter arm is provided with a mounting groove matched with the mounting lugs, the mounting grooves and the mounting lugs are also provided with fixing structures, the fixing structures are used for fixing the reamer cutter arms and the mounting lugs, one end, far away from the mounting grooves, of each reamer cutter arm is connected with a fixing lug, the top of the reamer cutter ring is provided with a plurality of fixing holes for the insertion of the fixing lugs, the fixing grooves are uniformly distributed along the circumferential direction of the reamer cutter ring, the bottom of each reamer cutter ring is also provided with a plurality of arcs, and each arc fixing groove is positioned between two adjacent fixing holes, the arc-shaped fixing groove is communicated with the fixing hole, the bottom of the reamer ring is also provided with a fixing ring, a plurality of rotary fixing pieces evenly arranged along the circumferential direction of the fixing ring are arranged on the fixing ring, the rotary fixing piece comprises a connecting vertical shaft and an arc-shaped fixing shaft, one end of the connecting vertical shaft is connected with the fixing ring and is perpendicular to the fixing ring, the other end of the connecting vertical shaft is connected with the end part of the arc-shaped fixing shaft, the arc-shaped fixed shaft is matched with the arc-shaped fixed groove in shape, the fixed lug is provided with a limit hole for the arc-shaped fixed shaft to enter, a plurality of upper bolt holes are arranged on the reamer ring, a plurality of lower bolt holes are arranged on the fixing ring, when the upper bolt hole and the lower bolt hole are in opposite positions, the arc-shaped fixing shaft is inserted into the limiting hole, and the lower bolt hole is connected with a fixing bolt in a threaded manner.

Further setting: the fixing structure comprises a dismounting groove formed in the mounting lug and a dismounting hole formed in the mounting groove, a dismounting bolt is connected in a threaded mode in the dismounting hole, the mounting lug is located in the mounting groove, the dismounting hole is communicated with the dismounting groove, and the dismounting bolt is in threaded connection with the dismounting groove.

Further setting: the one end that the bolt hole kept away from last bolt hole still seted up down and sheltered from the circular slot, the diameter that shelters from the circular slot is greater than the diameter of bolt hole down, shelter from the inslot and be provided with and shelter from the dog.

Further setting: the reamer is characterized in that a plurality of reamer tooth seats are installed on the outer edge of the reamer arm, reamer teeth are installed on the reamer tooth seats, and included angles between the reamer teeth and the tangent direction of the reamer ring are 45 degrees.

Further setting: six reamer tooth seats are arranged on each reamer arm.

To sum up, the utility model discloses following beneficial effect has: when the reamer receives the impact of stereoplasm soil and causes the damage in the use, only need earlier with fixing bolt from last bolt hole back-out, make the position of reamer sword circle and retainer plate not fixed, then rotate the retainer plate again and drive rotatory mounting and rotate, make the arc fixed axle leave from spacing hole, then the dismouting bolt that corresponds the reamer sword arm that will damage back-out from the dismouting groove, then take out the reamer sword arm that this damaged and make the installation lug leave the mounting groove and can renew, need not to change whole reamer, the service life is prolonged, and the cost is reduced. The mounting groove of a new reamer arm is aligned to the mounting lug, the mounting lug is enabled to enter the mounting groove, then the mounting lug is enabled to be fixedly connected with the mounting groove through threads by rotating the mounting bolt, then the fixing lug is inserted into the fixing hole, the fixing ring is rotated to enable the arc-shaped fixing shaft to be inserted into the limiting hole, and the fixing bolt is rotated to enable the arc-shaped fixing shaft to be fixedly connected with the upper bolt hole, so that the mounting can be put into use again. The setting of sheltering from the circular slot and sheltering from the dog forms to fixing bolt and shelters from, and it is downthehole to avoid the gravel and sand among the reamer working process to get into down the bolt, influences fixing bolt's rotation.

Drawings

FIG. 1 is a schematic view of the overall structure of the embodiment;

FIG. 2 is a schematic view of the whole structure of the embodiment after the fixing ring is hidden;

FIG. 3 is a bottom view of the embodiment at the reamer ring;

FIG. 4 is a schematic view showing the structure of the upper and lower bolt holes in the embodiment;

fig. 5 is a schematic view of a fixing structure in the embodiment.

In the figure, 1, a reamer ring; 2. a reamer hub; 3. a reamer arm; 4. a reamer tooth holder; 5. reamer teeth; 6. fixing the bump; 7. an arc-shaped fixing groove; 8. a stationary ring; 9. connecting a vertical shaft; 10. an arc-shaped fixed shaft; 11. a limiting hole; 12. a lower bolt hole; 13. an upper bolt hole; 14. fixing the bolt; 15. shielding the circular groove; 16. a stop block is shielded; 17. mounting a bump; 18. and (6) disassembling and assembling the bolts.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b):

as shown in fig. 1, 2 and 3, a multi-arm rock drilling reamer comprises a reamer ring 1, a reamer hub 2, a plurality of reamer arms 3 and a plurality of reamer teeth 5, wherein the outer wall of the reamer hub 2 is provided with a plurality of mounting bumps 17, the mounting bumps 17 are uniformly distributed along the circumferential direction of the reamer hub 2, one end of each reamer arm 3 is provided with a mounting groove matched with the mounting bumps 17, the mounting grooves and the mounting bumps 17 are also provided with fixing structures for fixing the reamer arms 3 and the mounting bumps 17, one end of each reamer arm 3, which is far away from the mounting grooves, is connected with a fixing bump 6, the top of the reamer ring 1 is provided with a plurality of fixing holes for inserting the fixing bumps 6, the fixing grooves are uniformly distributed along the circumferential direction of the reamer ring 1, the bottom of the reamer ring 1 is also provided with a plurality of arc fixing grooves 7, each arc fixing groove 7 is positioned between two adjacent fixing holes, arc fixed slot 7 and fixed orifices intercommunication, 1 bottom of reamer sword circle still is provided with retainer plate 8, be provided with the even rotatory mounting that sets up of a plurality of along 8 circumference of retainer plate on the retainer plate 8, rotatory mounting is including connecting vertical axis 9 and arc fixed axle 10, the one end of connecting vertical axis 9 is connected and perpendicular to retainer plate 8 with retainer plate 8, the other end and the end connection of arc fixed axle 10, arc fixed

axle

10 and 7 shape adaptations of arc fixed slot, set up the spacing hole 11 that supplies arc fixed axle 10 to get into on the fixed lug 6, a plurality of last bolt holes 13 have been seted up on the reamer sword circle 1, a plurality of lower bolt holes 12 have been seted up on the retainer plate 8, it all is when just right the position with lower bolt hole 12 to go up bolt hole 13, arc fixed axle 10 all inserts spacing hole 11 in, lower bolt hole 12 female connection has fixing bolt 14.

As shown in fig. 1, 4 and 5, the fixing structure includes a mounting groove formed on the mounting protrusion 17 and a mounting hole formed on the mounting groove, the mounting hole is internally threaded with a mounting bolt 18, when the mounting protrusion 17 is located in the mounting groove, the mounting hole is communicated with the mounting groove, and the mounting bolt 18 is threaded with the mounting groove. The one end that bolt hole 13 was kept away from to bolt hole 12 still seted up down and sheltered from circular slot 15, sheltered from the diameter that circular slot 15 is greater than bolt hole 12 down, sheltered from the inslot and be provided with and shelter from dog 16. Install a plurality of reamer toothholders 4 on the outward flange of reamer sword arm 3, reamer sword tooth 5 is installed on reamer toothholder 4, and the contained angle of reamer sword tooth 5 and 1 tangential direction of reamer ring is 45 degrees. Six reamer tooth holders 4 are arranged on each reamer arm 3.

The utility model discloses the theory of operation: when the reamer receives the impact of stereoplasm soil and causes the damage in the use, only need earlier 14 from last bolt holes 13 back-outs of fixing bolt, make reamer sword circle 1 not fixed with the position of retainer plate 8, then rotate retainer plate 8 and drive rotatory mounting and rotate again, make arc fixed axle 10 leave from spacing hole 11, then 18 back-outs of dismouting bolt that reamer sword arm 3 that will damage corresponds from the dismouting groove, then take out the reamer sword arm 3 that makes this damage and make installation lug 17 leave the mounting groove and can change reamer sword arm 3, need not to change whole reamer, the service life is prolonged, and the cost is reduced. The mounting groove of a new reamer arm 3 is aligned with the mounting lug 17, the mounting lug 17 is enabled to enter the mounting groove, then the mounting bolt 18 is rotated to enable the mounting lug to be fixedly connected with the mounting groove through threads, then the fixing lug 6 is inserted into the fixing hole, the fixing ring 8 is rotated to enable the arc-shaped fixing shaft 10 to be inserted into the limiting hole 11, and the fixing bolt 14 is rotated to enable the arc-shaped fixing shaft to be fixedly connected with the upper bolt hole 13, so that the mounting can be carried out again.

The above-described embodiments do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the above-described embodiments should be included in the protection scope of the technical solution.

Claims

1. A multi-arm rock-digging reamer comprises a reamer cutter ring (1), a reamer shaft hub (2), a plurality of reamer cutter arms (3) and a plurality of reamer cutter teeth (5), and is characterized in that a plurality of mounting lugs (17) are arranged on the outer wall of the reamer shaft hub (2), the mounting lugs (17) are uniformly distributed along the circumferential direction of the reamer shaft hub (2), one end of each reamer cutter arm (3) is provided with a mounting groove matched with the mounting lugs (17), the mounting grooves and the mounting lugs (17) are also provided with fixing structures, each fixing structure is used for fixing the reamer cutter arms (3) and the mounting lugs (17), one end of each reamer cutter arm (3) far away from the mounting grooves is connected with a fixing lug (6), the top of the reamer cutter ring (1) is provided with a plurality of fixing holes for the fixing lugs (6) to be inserted into, the reamer comprises a reamer cutter ring (1), fixing grooves, a plurality of arc-shaped fixing grooves (7) are formed in the bottom of the reamer cutter ring (1) and are evenly distributed along the circumferential direction of the reamer cutter ring (1), each arc-shaped fixing groove (7) is located between every two adjacent fixing holes, the arc-shaped fixing grooves (7) are communicated with the fixing holes, a fixing ring (8) is further arranged at the bottom of the reamer cutter ring (1), a plurality of rotary fixing pieces evenly arranged along the circumferential direction of the fixing ring (8) are arranged on the fixing ring (8), each rotary fixing piece comprises a connecting vertical shaft (9) and an arc-shaped fixing shaft (10), one end of the connecting vertical shaft (9) is connected with the fixing ring (8) and is perpendicular to the fixing ring (8), the other end of the connecting vertical shaft is connected with the end of the arc-shaped fixing shaft (10), and the arc-shaped fixing shaft (10) is matched with the arc-shaped fixing grooves (7) in shape, the reamer is characterized in that a limiting hole (11) for the arc-shaped fixing shaft (10) to enter is formed in the fixing lug (6), a plurality of upper bolt holes (13) are formed in the reamer ring (1), a plurality of lower bolt holes (12) are formed in the fixing ring (8), the upper bolt holes (13) and the lower bolt holes (12) are all located right at the position, the arc-shaped fixing shaft (10) is inserted into the limiting hole (11), and the lower bolt holes (12) are connected with fixing bolts (14) in an inner thread mode.

2. The multi-arm rock reamer of claim 1, wherein the fixing structure comprises a mounting groove formed on the mounting lug (17) and a mounting hole formed on the mounting groove, a mounting bolt (18) is screwed in the mounting hole, the mounting hole is communicated with the mounting groove when the mounting lug (17) is positioned in the mounting groove, and the mounting bolt (18) is screwed in the mounting groove.

3. The multi-arm rock reamer of claim 1, wherein the end of the lower bolt hole (12) remote from the upper bolt hole (13) is further provided with a shielding circular groove (15), the diameter of the shielding circular groove (15) is larger than that of the lower bolt hole (12), and a shielding block (16) is arranged in the shielding circular groove.

4. The multi-arm rock reamer as claimed in claim 1, wherein the reamer teeth seats (4) are mounted on the outer edge of the reamer arm (3), the reamer teeth (5) are mounted on the reamer seats (4), and the included angle between the reamer teeth (5) and the tangential direction of the reamer ring (1) is 45 degrees.

5. A multi-arm rock reamer according to claim 4, wherein there are six reamer seats (4) on each reamer arm (3).