Ash removing and dust falling type drilling device
By integrating dust removal pipes and water spray pipes in the drilling device, the problem of dust overflow from drilling holes is solved, construction efficiency and safety are improved, and technical support is provided for the disposal of dangerous rocks.
Patent Information
- Application Number
- CN202421151168.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-24
- Publication Date
- 2024-12-27
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
During slope support construction, dust overflow caused by drilling leads to harsh environment, low construction speed and efficiency, and additional hole cleaning treatment is required, affecting the efficiency of dangerous rock disposal.
A dust-clearing and dust-reducing drilling device was designed, and dust-removing pipes were installed in the drill rod, spraying heads and dust-reducing branch pipes, and dust-reducing branch pipes were used to suck and spray dust-and-water mist simultaneously through the flare-shaped vacuum suction port and dust-collection port structure. , realize effective reduction of dust.
It effectively avoids the hazards of dust overflow, improves construction efficiency, reduces the post-hole cleaning steps, protects the health of construction personnel, and improves technical support for dangerous rock disposal.
Smart Images
Figure CN222253885U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of drilling equipment and relates to a dust-cleaning and dust-reducing type drilling device. Background Art
[0002] Due to the large undulations in the mountainous terrain, there are many dangerous rocks on the slopes. In addition, most of my country is in the subtropical monsoon climate zone, with high temperatures and heavy rains in summer. Most of the western regions are located in the Pacific Ring of Fire and Earthquake Belt, and geological activities are frequent. Therefore, the number of highway cutting slopes and foundation pit support projects in my country has increased significantly, and problems such as slope instability and collapse are becoming increasingly serious.
[0003] When carrying out slope support construction, it is necessary to drill holes first, and then clean the holes before installing anchor rods and other components, and carry out subsequent support construction. The dust generated during drilling will lead to a bad working environment, and drilling first and then cleaning the dust will also slow down the construction speed and reduce efficiency. Therefore, how to quickly drill and empty the holes and provide technical support to speed up the disposal of dangerous rocks is of great significance to the reinforcement of dangerous rocks. Utility Model Content
[0004] In view of this, the utility model provides a dust-cleaning and dust-reducing drilling device to solve the above problems. The utility model installs a dust removal pipe for sucking away dust in the drill rod, so that during the drilling process, the dust generated will be sucked away simultaneously, effectively avoiding the dust spillage that harms the health of construction workers. At the same time, there is no need to clean the hole separately at a later stage, which effectively improves the construction efficiency and provides technical support for accelerating the disposal of dangerous rocks.
[0005] The utility model discloses a dust cleaning and dust reduction drilling device, comprising a drill bit and a drill rod, wherein the drill bit is detachably mounted on the axial front end of the drill rod, the drill rod is provided with a through middle channel along the central axis, a dust removal pipe for sucking out dust is installed in the middle channel, the axial front end of the dust removal pipe is a trumpet-shaped dust suction port which is larger at the front and smaller at the rear, the front end periphery of the dust suction port is conformably fitted to the wall surface of the middle channel, a dust suction chamber is formed between the dust suction port and the drill bit, and the drill bit is provided with a first through hole along the central axis for connecting the dust suction chamber with the outside.
[0006] Furthermore, it also includes a water spray pipe and a nozzle, a pressure equalizing chamber is arranged in the dust suction port, the nozzle is arranged on the inner wall surface of the dust suction port and is connected with the pressure equalizing chamber, the front end of the water spray pipe is installed on the outer wall surface of the dust suction port and is connected with the pressure equalizing chamber, the water spray pipe is used to transport water to the pressure equalizing chamber, and the nozzle is used to spray the water in the pressure equalizing chamber into the dust suction chamber.
[0007] Furthermore, the water spray pipe is also provided with a dust reduction branch pipe, which is connected to the dust removal pipe and is located at the axial rear side of the dust suction port.
[0008] Furthermore, a plurality of water spray pipes are provided, and the plurality of water spray pipes are evenly distributed along the circumference of the dust removal pipe.
[0009] Furthermore, the drill rod is provided with a plurality of dust collection ports, and the dust collection ports are arranged at a position between the dust suction port and the drill bit, and the plurality of dust collection ports are arranged in an array at the front of the drill rod.
[0010] Furthermore, the dust removal pipe and the plurality of water spray pipes are axially extended to the outside of the drill rod, and the rear end periphery of the drill rod is radially extended inward to form a supporting flange for supporting the dust removal pipe and the plurality of water spray pipes.
[0011] Furthermore, it also includes a first swivel bearing and a second swivel bearing, the dust suction port is attached to and installed in the middle channel through the first swivel bearing, the second swivel bearing is installed on the supporting flange and is outermostly mounted on the multiple water spray pipes, and the dust removal pipe and the multiple water spray pipes are installed in the middle channel rotatably relative to the drill rod through the first swivel bearing and the second swivel bearing.
[0012] Furthermore, it also includes a water chamber with a water inlet cavity, the water chamber is installed at the axial rear part of the dust removal pipe, the rear ends of the multiple water spray pipes are connected to the water chamber and communicated with the water inlet cavity, and the water chamber is also provided with a water inlet.
[0013] Furthermore, a plurality of the nozzles are provided, and the plurality of the nozzles are arranged in an array on the inner wall surface of the dust suction port.
[0014] Furthermore, it also includes a drilling rig, which includes a water pump, a vacuum cleaner and a driver. The water pump is connected to the water inlet for pumping water into the water chamber, the vacuum cleaner is connected to the dust removal pipe, a driving gear is installed at the rear of the drill rod, and the driver is used to output power to the drill rod through the driving gear to drive the drill rod to rotate.
[0015] Beneficial effects of the utility model:
[0016] The utility model discloses a dust-cleaning and dust-reducing drilling device, in which a dust-removing pipe for sucking away dust is installed in the drill rod, so that during the drilling process, the dust generated will be sucked away synchronously, effectively avoiding dust spillage and endangering the health of construction workers, and at the same time, there is no need to clean the hole separately in the later stage, which effectively improves the construction efficiency and provides technical support for accelerating the disposal of dangerous rocks; a water spraying pipe is installed on the outside of the dust-removing pipe, and a nozzle and a dust-reducing branch pipe are set, and water mist is sprayed into the dust-removing chamber and the dust-removing pipe synchronously during the drilling process, further achieving the purpose of dust suppression and dust reduction, and being more environmentally friendly; the dust collecting port is set so that the dust outside the hole drill bit can also be collected in the dust-removing chamber and discharged at the same time. The utility model can effectively reduce dust, protect manual safety, and has a higher drilling emptying efficiency, which provides technical support for accelerating the disposal of dangerous rocks. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the structure of the utility model;
[0018] Figure 2 This is the main view of the drill pipe;
[0019] Figure 3 This is the front view of the installation structure of the dust removal pipe and the water spray pipe;
[0020] Figure 4 This is the right side view of the dust removal pipe;
[0021] Figure 5 for Figure 1 A partial enlarged view of the middle A;
[0022] Figure 6 for Figure 1 A partial enlarged view of point B in the middle;
[0023] Figure 7 for Figure 3 Cross-sectional view at CC. DETAILED DESCRIPTION
[0024] It should be noted that in the description of this specification, the terms "upper", "lower", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In this embodiment, the axial direction is defined as the axial direction of the drill rod, and the radial direction is defined as the diameter direction of the drill rod. In this embodiment, the side facing the position to be drilled during use is defined as the front.
[0025] As shown in the figure, the utility model discloses a dust-clearing and dust-reducing drilling device, including a drill bit 2 and a drill rod 1, wherein the drill bit 2 is detachably mounted on the axial front end of the drill rod 1, the drill rod 1 is provided with a through middle channel along the central axis, a dust removal pipe 3 for sucking out dust is installed in the middle channel, the axial front end of the dust removal pipe 3 is a trumpet-shaped dust suction port 15 with a larger front and a smaller rear, the front edge of the dust suction port 15 is conformably fitted to the wall surface of the middle channel, a dust suction chamber is formed between the dust suction port 15 and the drill bit 2, and the drill bit 2 is provided with a first through hole along the central axis for connecting the dust suction chamber with the outside. The dust removal pipe 3 has a trumpet-shaped dust suction port 15, and the front edge of the dust suction port 15 can be fitted to the inner wall surface of the middle channel, which can ensure that the dust and debris generated in the drill bit 2 during the drilling process can all enter the dust removal pipe 3 and be discharged, and the first through hole is to facilitate dust to enter the dust suction chamber. A dust removal pipe 3 for sucking away dust is installed in the drill rod 1, so that the dust generated during the drilling process will be sucked away simultaneously, effectively avoiding dust spillage that harms the health of construction workers. At the same time, there is no need to clean the hole separately later, which effectively improves the construction efficiency, speeds up the drilling efficiency, and provides technical support for accelerating the disposal of dangerous rocks.
[0026] In this embodiment, a water spray pipe 4 and a nozzle 16 are also included. A pressure equalizing chamber 10 is provided in the dust suction port 15. The nozzle 16 is provided on the inner wall surface of the dust suction port 15 and is connected to the pressure equalizing chamber 10. The front end of the water spray pipe 4 is installed on the outer wall surface of the dust suction port 15 and is connected to the pressure equalizing chamber 10. The water spray pipe 4 is used to transport water to the pressure equalizing chamber 10, and the nozzle 16 is used to spray the water in the pressure equalizing chamber 10 to the dust suction chamber. In this embodiment, the dust suction port 15 is a trumpet-shaped structure with a cavity, which has inner and outer wall surfaces. There are multiple water spray pipes 4, and the multiple water spray pipes 4 are evenly distributed along the circumference of the dust removal pipe 3. In this embodiment, there are multiple nozzles 16, and the multiple nozzles 16 are arranged in an array on the inner wall surface of the dust suction port 15. As shown in the figure, four nozzles are arranged in this embodiment. The four nozzles can pump water for dust reduction into the pressure equalization chamber 10 more quickly at the same time. The pressure equalization chamber 10 ensures that each nozzle 16 can spray out equal pressure and amount of water. Combined with the multiple nozzles 16 arranged in a circular array, it ensures that the water can be evenly sprayed into the dust suction chamber and the nozzle 16, effectively reducing the harm of dust and making the construction environment more friendly.
[0027] In this embodiment, the water spray pipe 4 is also provided with a dust reduction branch pipe 12, which is connected to the dust removal pipe 3 and is located at the axial rear side of the dust suction port 15. As shown in the figure, a plurality of dust reduction branch pipes 12 are also provided, and the function of the dust reduction branch pipe 12 is to spray water into the dust removal pipe 3 to reduce dust. Although the dust suction port 15 is provided with a nozzle 16, it is avoided that due to the large amount of dust and ash, further water spraying is avoided to ensure the dust reduction effect.
[0028] In this embodiment, the drill rod 1 is provided with a plurality of dust collecting ports 6, which are arranged between the dust suction port 15 and the drill bit 2, and the plurality of dust collecting ports 6 are arranged in an array at the front of the drill rod 1. As shown in the figure, in this embodiment, eight dust collecting ports 6 are arranged in an array along the circumferential direction. The dust collecting ports 6 are arranged so that the dust removal pipe 3 can suck the dust outside the drill bit 2 into the dust suction chamber and discharge it at the same time during the drilling process. In this embodiment, the dust collecting ports 6 are arranged obliquely, and the axis of each dust collecting port 6 is parallel to the inner wall surface of the dust suction port 15. Such an arrangement can ensure that the dust can be sucked in more smoothly.
[0029] In this embodiment, the dust removal pipe 3 and the plurality of water spray pipes 4 are both extended axially to the outside of the drill rod 1, and the rear end periphery of the drill rod 1 is extended radially inward to form a support flange 14 for supporting the dust removal pipe 3 and the plurality of water spray pipes 4. In this embodiment, a first slewing bearing 11 and a second slewing bearing 13 are also included, the dust suction port 15 is attached to and installed in the middle channel through the first slewing bearing 11, the second slewing bearing 13 is installed on the support flange 14 and is sheathed on the plurality of water spray pipes 4, and the dust removal pipe 3 and the plurality of water spray pipes 4 are installed in the middle channel through the first slewing bearing 11 and the second slewing bearing 13 so as to be rotatable relative to the drill rod 1. Since the drill rod 1 needs to rotate together with the drill bit 2 to achieve the drilling work, and in order to ensure that the dust cleaning and dust reduction work is carried out more smoothly and stably, the dust removal pipe 3 and the multiple water spray pipes 4 are installed in the drill rod 1 through the first slewing bearing 11 and the second slewing bearing 13 to ensure that the dust removal pipe 3 and the multiple water spray pipes 4 are fixed during the rotation of the drill rod 1.
[0030] In this embodiment, a water chamber 5 having a water inlet chamber 8 is also included, the water chamber 5 is installed at the rear part of the axial direction of the dust removal pipe 3, the rear ends of the plurality of water spray pipes 4 are connected to the water chamber 5 and communicate with the water inlet chamber 8, and the water chamber 5 is also provided with a water inlet 9. Since there are a plurality of water spray pipes 4, compared with connecting the plurality of water spray pipes 4 to the water pumping device at the same time, a water chamber 5 is provided, water is first pumped to the water chamber 5, and then uniformly flows to each water spray pipe 4, which can further simplify the structure, and the water chamber 5 also plays the role of supporting the plurality of water spray pipes 4 in the radial direction, making the structure more stable.
[0031] In this embodiment, a drilling rig is also included, and the drilling rig includes a water pump, a dust collector and a driver. The water pump is connected to the water inlet 9 for pumping water into the water chamber 5, and the dust collector is connected to the dust removal pipe 3. A driving gear 7 is installed at the rear of the drill rod 1, and the driver is used to output power to the drill rod 1 through the driving gear 7 to drive the drill rod 1 to rotate. The driver can be a driving member such as a motor, which transmits power to the driving gear 7 through gear transmission. The driving gear 7 drives the drill rod 1 to rotate, and then drives the drill bit 2 to rotate synchronously to achieve power transmission and ensure that the drilling work is carried out normally. The water pump is used to pump water for dust reduction into the water chamber 5 through the water inlet 9, and also ensures that the water pressure in the water spray pipe 4 can meet the working requirements to ensure that water can be sprayed normally. The dust collector is connected to the end of the dust removal pipe 3 to suck out the dust and debris generated during the drilling process to achieve the purpose of drilling dust cleaning. The components of the drilling rig can select components with different working powers according to the actual water spraying volume requirements, the drill bit 2 speed requirements and the amount of ash, which is understandable to technicians in this technical field and will not be elaborated here.
[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.
Claims
1. A dust-clearing and dust-reducing drilling device, characterized in that: The utility model comprises a drill bit and a drill rod, wherein the drill bit is detachably mounted on the axial front end of the drill rod, the drill rod is provided with a through middle channel along the central axis, a dust removal pipe for sucking out dust is installed in the middle channel, the axial front end of the dust removal pipe is a trumpet-shaped dust suction port which is larger at the front and smaller at the back, the front end periphery of the dust suction port is conformally fitted to the wall surface of the middle channel, a dust suction chamber is formed between the dust suction port and the drill bit, and the drill bit is provided with a first through hole along the central axis for connecting the dust suction chamber with the outside.
2. The dust-clearing and dust-reducing drilling device according to claim 1 is characterized in that: It also includes a water spray pipe and a nozzle. A pressure equalizing chamber is arranged in the dust suction port. The nozzle is arranged on the inner wall surface of the dust suction port and is connected to the pressure equalizing chamber. The front end of the water spray pipe is installed on the outer wall surface of the dust suction port and is connected to the pressure equalizing chamber. The water spray pipe is used to transport water to the pressure equalizing chamber, and the nozzle is used to spray the water in the pressure equalizing chamber into the dust suction chamber.
3. The dust-clearing and dust-reducing drilling device according to claim 2 is characterized in that: The water spray pipe is also provided with a dust reduction branch pipe, which is connected to the dust removal pipe and is located at the axial rear side of the dust suction port.
4. The dust-clearing and dust-reducing drilling device according to claim 2 is characterized in that: A plurality of water spray pipes are provided, and the plurality of water spray pipes are evenly distributed along the circumference of the dust removal pipe.
5. The dust-clearing and dust-reducing drilling device according to claim 1, characterized in that: The drill rod is provided with a plurality of dust collecting ports, which are arranged between the dust suction port and the drill bit, and the plurality of dust collecting ports are arranged in an array at the front of the drill rod.
6. The dust-clearing and dust-reducing drilling device according to claim 2, characterized in that: The dust removal pipe and the plurality of water spray pipes are both axially extended to the outside of the drill rod, and the rear end periphery of the drill rod is radially extended inward to form a supporting flange for supporting the dust removal pipe and the plurality of water spray pipes.
7. The dust-clearing and dust-reducing drilling device according to claim 6 is characterized in that: It also includes a first swivel bearing and a second swivel bearing. The dust suction port is attached to and installed in the middle channel through the first swivel bearing. The second swivel bearing is installed on the supporting flange and is outer-mounted on the multiple water spray pipes. The dust removal pipe and the multiple water spray pipes are installed in the middle channel through the first swivel bearing and the second swivel bearing so as to be rotatable relative to the drill rod.
8. The dust-clearing and dust-reducing drilling device according to claim 6, characterized in that: It also includes a water chamber with a water inlet cavity, which is installed at the axial rear part of the dust removal pipe. The rear ends of multiple water spray pipes are connected to the water chamber and communicated with the water inlet cavity. The water chamber is also provided with a water inlet.
9. The dust-clearing and dust-reducing drilling device according to claim 2, characterized in that: There are multiple nozzles, and the multiple nozzles are arranged in an array on the inner wall surface of the dust suction port.
10. The dust-clearing and dust-reducing drilling device according to claim 8, characterized in that: It also includes a drilling rig, which includes a water pump, a vacuum cleaner and a driver. The water pump is connected to the water inlet for pumping water into the water chamber. The vacuum cleaner is connected to the dust removal pipe. A driving gear is installed at the rear of the drill rod. The driver is used to output power to the drill rod through the driving gear to drive the drill rod to rotate.