CN-114963913-B - Automatic filling device for engineering blasting blastholes

CN114963913BCN 114963913 BCN114963913 BCN 114963913BCN-114963913-B

Abstract

The invention discloses an automatic filling device for engineering blasting blastholes, and belongs to the field of engineering blasting. The device is integrally arranged on a rock drilling trolley or a charging trolley and is applied as a filling structure. The device comprises a shell, a stemming pipe, a baffle and the like, wherein a filling port is formed in the upper portion of the shell, the size of the filling port corresponds to that of the stemming pipe, a power mechanism is connected with a transmission rod through a power rod, a power wheel, a transmission bearing group, a cam I and a cam II to provide rotary power for the transmission rod, the upper end of a pneumatic rod is connected with the shell of the transmission bearing group, the lower end of the pneumatic rod is connected with the shell, the pneumatic rod provides power for the transmission rod to move up and down, a front bearing group is positioned near the filling port and is nested in the shell, and is sleeved on the transmission rod through an inner linear bearing.

Inventors

ZHANG ZHIYU
LI HENG
MA JUNJIE
LI ZHUO
HUANG YONGHUI
LI HONGCHAO
WANG JIANGUO
LI XIANGLONG

Assignees

昆明理工大学
昆明理工大学

Dates

Publication Date: 20260421
Application Date: 20220329
Priority Date: 20220329

Claims (7)

1. The automatic filling device for the engineering blasting blastholes is characterized by comprising a shell (1), a stemming pipe (2), a baffle plate (3), a pipe bin cover (4), a transmission rod (6), a filling port (7), a front bearing group (8), an air pressure rod (9), a cam I (10), a cam II (11), a power wheel (12), a transmission bearing group (13), a power rod (14), a spring (15), a positioning bearing (16) and an air vent (31); The device comprises a shell (1), a filling port (7), a power mechanism, a spring (15), two linear bearings (27), a transmission rod (6), a transmission bearing group (16) and a bearing group, wherein the filling port (7) is arranged at the upper part of the shell (1), the size of the filling port (7) corresponds to that of a stemming pipe (2), the stemming pipe (2) is plugged into the shell (1) through the filling port (7), a baffle (3) is arranged at the top of the stemming pipe (2), the top of the baffle (3) is connected with the transmission rod (6), a pipe bin cover (4) is arranged at the position of the filling port (7), the power mechanism is connected with the transmission rod (6) through a power rod (14), a power wheel (12), a transmission bearing group (13), a cam I (10) and a cam II (11) to provide rotary power for the transmission rod (6), the upper end of the air pressure rod (9) is fixed with the shell of the transmission bearing group (13), the lower end of the air pressure rod (9) provides power for the transmission rod (6), the front bearing group (8) is positioned at one end of the filling port (7), is integrally embedded and fixed at the tail of the shell (1), and is nested on the transmission rod (6) through the linear bearings (27); The transmission bearing group (13) comprises a transmission bearing I (22), a transmission gear (23), a transmission bearing II (24), an inner hexagonal transmission bearing (25) and a connecting device (21), wherein the transmission bearing I (22), the transmission gear (23) and the transmission bearing II (24) are nested and fixed on the connecting device (21), the inner diameter of the connecting device (21) is larger than that of a transmission rod (6), the diameters of the transmission bearing I (22) and the transmission bearing II (24) are consistent with the inner diameter of a bearing group shell, and the transmission bearing II is ensured to be embedded with the bearing group shell; The front bearing group (8) comprises a ball bearing I (26) and a linear bearing (27), wherein the ball bearing I (26) is a one-way bearing, the ball bearing I (26) is opposite to the rotation allowed by the inner hexagonal ball bearing (20) and the inner hexagonal transmission bearing (25), namely, if the ball bearing I (26) can only rotate clockwise, the inner hexagonal ball bearing (20) and the inner hexagonal transmission bearing (25) can only rotate anticlockwise, and if the ball bearing I (26) rotates clockwise, the inner hexagonal ball bearing (20) and the inner hexagonal transmission bearing (25) can not rotate at the moment, and power is transmitted to the transmission rod (6).
2. The automatic filling device for engineering blasting blastholes according to claim 1, wherein the diameter of the shell (1) is slightly smaller than the diameter of the drilled hole, and the head part is provided with an annular bayonet.
3. The automatic filling device for engineering blasting blastholes according to claim 1, wherein the pipe bin cover (4) is connected with the edge of the filling opening (7) through a hinge (5).
4. The automatic filling device for engineering blasting blastholes according to claim 1, wherein the baffle plate (3) is internally provided with an air hole (31).
5. The automatic filling device for the engineering blasting blastholes is characterized in that the cam I (10) is sleeved on the transmission rod (6), the locking device comprises two screws (17) and two sliding blocks I (18), and after the screws (17) are screwed down, the width of a gap between the two sliding blocks I (18) is smaller than the width of the transmission rod (6), so that the locking device can lock the transmission rod.
6. The automatic filling device for engineering blasting blastholes according to claim 1, wherein the cam II (11) is sleeved on the transmission rod (6) through a fixed inner hexagonal ball bearing (20), and the whole formed by the cam II and the cam II can freely slide on the transmission rod (6).
7. The automatic filling device for engineering blasting blastholes according to claim 1, wherein the positioning bearing (16) comprises a ball bearing II (28), a sliding block II (29) and a taper screw (30), one end of the positioning bearing is fixed by a spring (15), the positioning bearing is integrally sleeved at the tail part of the transmission rod (6), and the sliding block II (29) can be compressed by screwing the taper screw (30), so that the bearing is fixed at the tail part of the transmission rod (6).

Description

Automatic filling device for engineering blasting blastholes Technical Field The invention relates to an automatic filling device for engineering blasting blastholes, and belongs to the field of engineering blasting. Background In China, the industries related to blasting operation are more, and engineering blasting technology is more and more widely applied to the fields of quarries, mines, bridges, tunnels, blasting demolition and the like. In the blasting operation process, the blast hole needs to be filled after the charging, and the filled quality directly influences the blasting effect, if the filling is too soft, the explosive energy can be excessively dissipated in the air, so that the blast hole punching phenomenon is generated, the blasting effect is poor and the blocking rate is high. In addition, the quality of good blast hole filling can reduce the specific explosive consumption to a certain extent. Currently, in most blasting and tamping sites, workers are required to perform tamping operations of blast holes manually or by means of partial tools. The invention discloses a device capable of solving the problem of automatic filling universality, high efficiency and economy of engineering blasting blastholes, which is characterized by huge workload in the filling process and lower working efficiency, which can influence the filling quality. Disclosure of Invention The invention aims to provide an automatic filling device for engineering blasting blastholes, which can be matched with a charging trolley or a rock drilling trolley for use and provides an automatic filling device for blasthole filling links in engineering blasting operation. The technical scheme includes that the automatic filling device for the engineering blasting blasthole comprises a shell 1, a stemming pipe 2, a baffle plate 3, a pipe bin cover 4, a transmission rod 6, a filling port 7, a front bearing set 8, an air pressure rod 9, a cam I10, a cam II11, a power wheel 12, a transmission bearing set 13, a power rod 14, a spring 15, a positioning bearing 16 and an air vent 31, wherein the filling port 7 is arranged at the upper part of the shell 1, the size of the filling port 7 corresponds to that of the stemming pipe 2, the stemming pipe 2 is plugged into the shell 1 through the filling port 7, the baffle plate 3 is arranged at the top of the stemming pipe 2, the top of the baffle plate 3 is connected with the transmission rod 6, the pipe bin cover 4 is arranged at the filling port 7, a power mechanism is connected with the transmission rod 6 through the power rod 14, the power wheel 12, the transmission bearing set 13, the cam I10 and the cam II11, the transmission rod 6 is provided with rotary power, the upper end of the air pressure rod 9 is connected with the shell of the transmission bearing set 13, the lower end of the air pressure rod 9 is connected with the shell 1, the air pressure rod 9 provides lower motion for the transmission rod 6, the front bearing set 8 is positioned at the two ends of the transmission rod 6 and the transmission bearing set 16 through the linear bearings and the two ends of the transmission bearing set 15 are respectively nested at the two ends of the transmission bearing set 16. In this embodiment, the diameter of the casing 1 is slightly smaller than the diameter of the drilled hole, and the head has an annular bayonet. In this embodiment, the tube bin cover 4 is connected with the edge of the filling opening 7 through a hinge 5. The baffle 3 in this embodiment has a vent 31 therein. The cam I10 is sleeved on the transmission rod 6, the locking device comprises two screws 17 and two sliding blocks I18, after the screws 17 are screwed, the width of a gap between the two sliding blocks I18 is smaller than the width of the transmission rod 6, and the locking device can be ensured to lock the transmission rod. In this embodiment, the cam II 11 is sleeved on the transmission rod 6 through an inner hexagonal ball bearing 20 fixed inside, and the whole formed by the cam II and the transmission rod can slide on the transmission rod 6 freely. The transmission bearing group 13 in this embodiment includes a transmission bearing I22, a transmission gear 23, a transmission bearing II 24, and an inner hexagonal transmission bearing 25, where the transmission bearing I22, the transmission gear 23, the transmission bearing II 24, the inner hexagonal transmission bearing 25, and the connection device 21, the transmission bearing I22, the transmission gear 23, the transmission bearing II 24 are all nested and fixed on the connection device 21, the inner diameter of the connection device 21 is greater than the transmission rod 6, the diameters of the transmission bearing I22 and the transmission bearing II 24 are identical to the inner diameter of the bearing group shell, and the connection device is guaranteed to be embedded with the bearing group shell. The inner hexagonal transmission bearing 25 is a one-way