CN212177038U

CN212177038U - Horizontal drilling machine for secondary lining and primary support concrete of tunnel

Info

Publication number: CN212177038U
Application number: CN202020853745.3U
Authority: CN
Inventors: 苗建青; 李金雷; 常春辉; 朱高云; 王朝星; 白尚本; 高玉飞
Original assignee: No 1 Engineering Co Ltd of CCCC First Highway Engineering Co Ltd
Current assignee: No 1 Engineering Co Ltd of CCCC First Highway Engineering Co Ltd
Priority date: 2020-05-21
Filing date: 2020-05-21
Publication date: 2020-12-18
Anticipated expiration: 2030-05-21

Abstract

The utility model belongs to a horizontal drilling machine that is used for two linings in tunnel and first concrete comprises motor, drilling rod and drill bit. The vertical middle part of portal is equipped with vertical branch, the vertical sliding sleeve sliding fit that has fastening screw or fix on vertical branch, the front end of vertical sliding sleeve is fixed as an organic whole with the rear end of the horizontal push rod of horizontally, the front end of horizontal push rod is held on the tunnel wall of drill bit upper end through the voussoir top, horizontal sliding sleeve sliding fit is on horizontal push rod, the motor passes through motor fixed disk and bolt fastening on the lower terminal surface of horizontal sliding sleeve, the motor passes through the drilling rod and drives the drill bit rotation, the front portion upper end of vertical branch is equipped with the wire rope ring and passes through the wire rope ring, wire rope is connected with the nail ring of fixing on opposite tunnel wall. The utility model discloses can guarantee the quality of drilling with the horizontal drilling rig of self-control, have simple structure, construction cost low, labour saving and time saving, the efficiency of construction is high, convenient and fast, stability is good and factor of safety is high advantage.

Description

Horizontal drilling machine for secondary lining and primary support concrete of tunnel

Technical Field

The utility model belongs to a horizontal drilling machine that is used for two linings in tunnel and first concrete.

Background

When the secondary lining and the primary concrete or the tunnel wall of the tunnel are horizontally drilled in the tunnel site construction process, more manpower is required to be invested in drilling by adopting a traditional pneumatic drilling machine, the horizontal positioning of a drilling rod in the drilling process cannot be guaranteed, the drilled hole is difficult to form a horizontal shape and is accurate in positioning, and the qualified rate of the drilled hole is less than 20%. This is due to the large vibration and poor stability of pneumatic drills, which are difficult to control by personnel.

Disclosure of Invention

The utility model aims at designing a horizontal drilling machine that is used for two linings in tunnel and just props up concrete, can guarantee the quality of drilling with the horizontal drilling machine of self-control, have simple structure, construction cost low, labour saving and time saving, the efficiency of construction is high, convenient and fast, stability is good and the advantage that factor of safety is high.

Therefore, the utility model is composed of a motor, a drill rod and a drill bit. The lower end of the portal is fixed on a drilling machine supporting platform in the tunnel through a fixed flange plate and a bolt. The vertical middle part of the portal frame is provided with a vertical supporting rod. The vertical sliding sleeve with the fastening screw is matched with or fixed on the vertical supporting rod in a sliding way. The front end of the vertical sliding sleeve and the rear end of the horizontal push rod are fixed into a whole. The front end of the transverse push rod is supported on the tunnel wall at the upper end of the drill bit through a wedge block. The transverse sliding sleeve is matched on the transverse push rod in a sliding mode, the motor is fixed on the lower end face of the transverse sliding sleeve through the motor fixing disc and the bolt, and the motor drives the drill bit to rotate through the drill rod. The upper end of the front part of the vertical supporting rod is provided with a steel wire rope ring and is connected with a nail ring fixed on the opposite tunnel wall through the steel wire rope ring and a steel wire rope.

Push handles are arranged on two sides of the upper end of the transverse sliding sleeve. The inner end part of the fastening screw is in threaded connection with the vertical sliding sleeve and then props against the corresponding side surface of the vertical supporting rod. The included angle between the vertical supporting rod and the transverse push rod is 90 degrees.

The cross section of the vertical supporting rod or the transverse push rod is rectangular. And the side surfaces of the vertical supporting rod and the transverse push rod are provided with dimension scale marks.

Above-mentioned structural design has reached the utility model discloses a purpose.

The utility model discloses can guarantee the quality of drilling with the horizontal drilling rig of self-control, have simple structure, construction cost low, labour saving and time saving, the efficiency of construction is high, convenient and fast, stability is good and factor of safety is high advantage.

The utility model discloses guaranteed that the drilling position satisfies the design requirement, the horizontal push rod has not only played the effect of direction and fixed drilling rod, but also can accurately calculate out the drilling depth according to size scale mark, and the self-control horizontal drilling machine flexible operation, it is convenient to remove, can be to tunnel drilling position quick construction; and the homemade horizontal drilling machine has good operation stability, small damage to the second lining and the lining, large diameter compared with the traditional manual drilling, high efficiency, less manual investment, less disturbance to the second lining, high safety factor, and high qualified rate of drilling holes up to 99.9 percent, thereby improving the standardized construction level.

Drawings

Fig. 1 is a schematic structural diagram of a drilling machine part of the present invention.

Fig. 2 is a schematic view of a partial structure of the gantry of the present invention.

Fig. 3 is a schematic view of the cross-sectional structure a-a in fig. 1.

Detailed Description

As shown in fig. 1 to 3, a horizontal drilling machine for tunnel secondary lining and primary concrete is composed of a motor 8, a drill rod 9 and a drill bit 10. The lower end of the portal 2 is fixed on a drilling machine supporting platform 11 in the tunnel through a fixing flange 7 and bolts. The longitudinal middle part of the portal frame is provided with a vertical supporting rod 21, and the two can be butted through bolts or welding. A vertical sliding sleeve 5 with a fastening screw 6 is matched with or fixed on the vertical supporting rod in a sliding way. The inner end part of the fastening screw is in threaded connection with the vertical sliding sleeve and then props against the corresponding side surface of the vertical supporting rod; when the fastening screw rod is tightly propped against the corresponding side surface of the vertical supporting rod, the vertical sliding sleeve is fixedly arranged on the vertical supporting rod, otherwise, the position of the vertical sliding sleeve on the vertical supporting rod can be adjusted so as to adjust the height of the transverse push rod and the drill hole.

The front end of the vertical sliding sleeve and the rear end of the horizontal transverse push rod 4 are fixed into a whole by welding. The included angle between the vertical supporting rod and the transverse push rod is 90 degrees. The front end of the transverse push rod is supported on the tunnel wall at the upper end of the drill bit through a wedge block. The transverse sliding sleeve 3 is matched on the transverse push rod in a sliding way. The motor is fixed on the lower end face of the transverse sliding sleeve through a motor fixing plate 13 and bolts 14, and each bolt is in threaded connection with the lower end face of the transverse sliding sleeve. The motor drives the drill bit to rotate through the drill rod. The upper end of the front part of the vertical supporting rod is provided with a steel wire rope ring 1. One end of the steel wire rope is fixed on the steel wire rope ring, and the other end of the steel wire rope is fixed on the nail ring on the opposite tunnel wall so as to stabilize the vertical supporting rod.

And push handles 12 are arranged on two sides of the upper end of the transverse sliding sleeve and used for moving and jacking the transverse sliding sleeve, the drill rod and the drill bit.

The cross section of the vertical supporting rod or the transverse push rod is rectangular. The side surfaces of the vertical supporting rod and the transverse push rod are provided with dimension scale marks 15 so as to conveniently position the vertical sliding sleeve and the transverse sliding sleeve and grasp the drilling depth of the drill bit.

When the drilling machine supporting platform is used, the drilling machine supporting platform is fixed by the cross-shaped buckles at intervals of 30cm by adopting phi 48 steel pipes, and the drilling machine supporting platform is positioned on the ground of a drilling machine working surface. In field use, the drilling operation can be completed by 1 person, the drilling height can be adjusted by adjusting the position of the wall-adjusting vertical sliding sleeve on the vertical supporting rod, and the drilling position is ensured to meet the design requirement. Drill bits with the diameter of 160 mm, the diameter of 110 mm and the like are adopted for drilling, and the drill bits are driven by a motor with the diameter of 3kw for drilling. The motor is started, the motor drives the drill bit to rotate through the drill rod, the push handle is pushed by hands to drive the transverse sliding sleeve, the motor, the drill rod and the drill bit to rotate and move forwards along the transverse push rod, the rotary drill bit is in contact with the tunnel wall to complete drilling on the tunnel wall, the transverse push rod not only plays a role in guiding and fixing the drill rod, but also can determine the drilling depth in time through the size scale marks on the transverse push rod.

In a word, the utility model discloses can guarantee the quality of drilling with the horizontal drilling rig of self-control, have simple structure, construction cost low, labour saving and time saving, the efficiency of construction is high, convenient and fast, stability is good and factor of safety is high advantage. Can be popularized and used.

Claims

1. A horizontal drilling machine for tunnel secondary lining and primary support concrete is composed of a motor, a drill rod and a drill bit, and is characterized in that: the lower extreme of portal passes through mounting flange and bolt fastening on the rig supporting platform in the tunnel, the vertical middle part of portal is equipped with vertical branch, the vertical sliding sleeve sliding fit that has fastening screw or fix on vertical branch, the front end of vertical sliding sleeve is fixed as an organic whole with the rear end of horizontal push rod, the front end of horizontal push rod is held on the tunnel wall of drill bit upper end through the voussoir top, horizontal sliding sleeve sliding fit is on horizontal push rod, the motor passes through the motor fixed disk and the bolt fastening is on the lower terminal surface of horizontal sliding sleeve, the motor passes through the drilling rod and drives the drill bit rotation, the anterior upper end of vertical branch is equipped with the wire rope ring and passes through the wire rope ring, wire rope is connected with the nail ring of fixing on.

2. The horizontal drilling rig for tunnel secondary lining and primary concrete according to claim 1, wherein: push handles are arranged on two sides of the upper end of the transverse sliding sleeve.

3. The horizontal drilling rig for tunnel secondary lining and primary concrete according to claim 1, wherein: the inner end part of the fastening screw is in threaded connection with the vertical sliding sleeve and then props against the corresponding side surface of the vertical supporting rod.

4. The horizontal drilling rig for tunnel secondary lining and primary concrete according to claim 1, wherein: the included angle between the vertical supporting rod and the transverse push rod is 90 degrees.

5. The horizontal drilling rig for tunnel secondary lining and primary concrete according to claim 1, wherein: the cross section of the vertical supporting rod or the transverse push rod is rectangular.

6. The horizontal drilling rig for tunnel secondary lining and primary concrete according to claim 1, wherein: and the side surfaces of the vertical supporting rod and the transverse push rod are provided with dimension scale marks.