CN215586728U - Self-rotating axe type rock drilling rod - Google Patents
Self-rotating axe type rock drilling rod Download PDFInfo
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- CN215586728U CN215586728U CN202121991697.5U CN202121991697U CN215586728U CN 215586728 U CN215586728 U CN 215586728U CN 202121991697 U CN202121991697 U CN 202121991697U CN 215586728 U CN215586728 U CN 215586728U
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Abstract
The utility model relates to a self-rotating axe type rock drilling rod which comprises a shell and a rock drilling rod, wherein an accommodating cavity is arranged in the shell, an upper rotary table and a lower rotary table are arranged in the accommodating cavity, the upper rotary table and the lower rotary table are arranged at an interval, lifting teeth are arranged on the lower end face of the upper rotary table and the upper end face of the lower rotary table, the rock drilling rod comprises a rod tip and a rotating shaft, the rotating shaft is arranged on the rod tip, a lifting disc is arranged on the rotating shaft, and lifting teeth matched with the lifting teeth are arranged on the upper end face and the lower end face of the lifting disc. The self-rotating axe type rock drilling rod drives the rod tip to rotate by utilizing the falling kinetic energy of the shell of the rock drilling rod and the gravitational potential energy of the rod tip during the processes of drilling and lifting through the alternative meshing of the shell and the upper and lower turnplates of the rod tip, so that the direction of a contact line between the rod tip and rock is changed during repeated drilling, and the damage range and the damage effect of the rock are increased. The axe type rock drilling rod does not need manual intervention in the process of adjusting the rod tip direction, does not need to improve the existing lifting device in the using process, and is simple and easy to implement.
Description
Technical Field
The utility model relates to the field of water conservancy and water transportation engineering, in particular to a self-rotating axe type rock drilling rod.
Background
Dredging is an earth and rockfill work carried out using a dredger or other machine for widening and deepening a water area. When the dredging process encounters large pieces of rock, the digging difficulty is large. The solution is generally achieved by the following methods: firstly, the reamer type dredger has strict control on the excavating depth, does not influence the surrounding environment, and is an ideal underwater rock breaking means when the rock strength is small. However, when the rock strength is high, the use of the reamer type dredger is inefficient and the cutting pick is easily damaged. And secondly, underwater blasting is carried out, the rock breaking method has low requirements on equipment, the efficiency of excavating hard rocks is higher, but the method has serious environmental pollution and needs navigation sealing, and the application conditions are strictly limited. The other method is to use the rock drilling rod to carry out the impact, and the method for breaking the rock by the impact of the rock drilling rod does not influence the passage of the navigation channel and is simple to implement. Particularly, with the attention on the environmental protection problem and the increase of the navigation pressure of the channel, the deep-water deep groove rock drilling technology replaces an underwater blasting process to solve the problem of rock reef treatment faced by a hard foundation groove in the channel dredging engineering. The process of the rock drilling rod is thus of great importance for improving the efficiency of breaking rock.
The rock drilling process is used as a means for breaking the reef by physical chiseling, and the rock drilling rod is lifted to a certain height and then falls freely to fiercely chisel the reef, so that the rock drilling rod is broken and cracked, and the aim of cleaning the reef smoothly is fulfilled. The rock drilling process does not influence the normal berthing of ships and wharf production, does not basically influence the surrounding environment, does not need the approval of related departments, is safe and convenient to implement, has flexible organization, and shows great prospect and application value in reef cleaning engineering which cannot be applied to the blasting process.
The axe type rock drilling rod is in line contact with the rock, has large pressure on the rock, large action range and good rock breaking effect, and is a rock drilling rod type which is more used in a rock drilling process.
When the rock is hard and thick, repeated chiseling needs to be carried out at the same place to achieve the rock breaking effect. In the current repeated chiseling operation, the position and the direction of the line contact between the axe type rock drilling rod and the rock are kept unchanged, the repeated chiseling enables the local rock to be excessively crushed, the influence on the peripheral rock is small, and the chiseling energy is wasted.
Because the length of the tip of the axe type rock drilling rod generally exceeds 1m, if the direction of the tip is changed in repeated chiseling, the direction of an action line of the rock drilling rod for chiseling the rock at the same point is changed, the advantages of large action range and large pressure intensity of the axe type rock drilling rod are fully utilized, and the damage effect to the rock is greatly improved.
SUMMERY OF THE UTILITY MODEL
In order to adjust the direction of the action line of the axe type rock drilling rod in repeated chiseling, the utility model provides the self-rotating axe type rock drilling rod, the rock drilling rod does not need manual intervention in the process of adjusting the rod tip direction, an existing lifting device does not need to be improved in the using process, and the method is simple and easy to implement.
According to one aspect of the utility model, a self-rotating axe type rock drilling rod is provided, and comprises a shell and a rock drilling rod, wherein a containing cavity is arranged in the shell, an upper rotary disc and a lower rotary disc are arranged in the containing cavity, the upper rotary disc and the lower rotary disc are arranged at an interval, lifting teeth are arranged on the lower end face of the upper rotary disc and the upper end face of the lower rotary disc, the rock drilling rod comprises a rod tip and a rotating shaft, the rotating shaft is arranged on the rod tip, a lifting disc is arranged on the rotating shaft, lifting teeth matched with the lifting teeth are arranged on the upper end face and the lower end face of the lifting disc, and the number of the lifting teeth is twice that of the lifting teeth; the lifting disc is clamped between the upper rotating disc and the lower rotating disc.
Preferably, on the basis of the scheme, the top of the rod tip is acute-angled.
On the basis of the scheme, the distance between the lower end face of the upper rotating disc and the upper end face of the lower rotating disc is preferably larger than the height of the lifting disc.
On the basis of the scheme, the lifting tooth preferably comprises an arc-shaped connecting part and a stopping part which is vertically upward, and the connecting part is connected with the stopping part.
On the basis of the scheme, the number of the lifting teeth is preferably 4, and the number of the lifting teeth is preferably two.
According to the self-rotating axe type rock drilling rod, kinetic energy of falling of a shell of the rock drilling rod and gravitational potential energy of a rod tip are respectively utilized by the self-rotating axe type rock drilling rod during chiseling and lifting, the rod tip is driven to rotate through the process that the shell and an upper rotary disc and a lower rotary disc of the rod tip are alternately meshed, so that the direction of a contact line between the rod tip and a rock is changed during repeated chiseling, and the damage range and the damage effect of the rock are increased. The axe type rock drilling rod does not need manual intervention in the process of adjusting the rod tip direction, does not need to improve the existing lifting device in the using process, and is simple and easy to implement.
Drawings
Figure 1 is a block diagram of a self-rotating hatchet rock drilling rod of the present invention;
figure 2 is a cross-sectional view of a self-rotating hatchet rock drilling rod of the present invention;
figure 3 is a side view of a chisel rod of the present invention;
figure 4 is a perspective view of a chisel rod of the present invention;
fig. 5 is a cross-sectional view of the housing of the present invention.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.
Referring to fig. 1, and referring to fig. 2, fig. 3, fig. 4 and fig. 5, the self-rotating axe type rock drilling rod of the present invention includes a housing 10 and a rock drilling rod 20, wherein a receiving cavity is formed in the housing 10, a hole is formed in the top of the housing 10, an upper rotating disk 11 and a lower rotating disk 13 are installed in the receiving cavity, the upper rotating disk 11 and the lower rotating disk 13 are arranged at an interval, lifting teeth 12 are provided on the lower end surface of the upper rotating disk 11 and the upper end surface of the lower rotating disk 13, and the upper rotating disk 11 and the lower rotating disk 13 are arranged asymmetrically and staggered with respect to each other.
The chisel rod 20 comprises a rod tip 21 and a rotating shaft 22, the rotating shaft 22 is arranged on the rod tip 21, the rotating shaft 22 is provided with a lifting disc 23, the upper end face and the lower end face of the lifting disc 23 are provided with lifting teeth 14 matched with the lifting teeth 12, and the number of the lifting teeth 12 is twice that of the lifting teeth 14; the lifting disk 23 is engaged between the upper turntable 11 and the lower turntable 13.
In order to ensure the chiseling effect, the tip 21 of the present invention is formed at an acute angle.
It should be noted that the distance between the lower end surface of the upper rotating disk 11 and the upper end surface of the lower rotating disk 13 is greater than the height of the lifting disk 23, and as shown in the figure, the distance between the lower end surface of the rotating disk and the upper end surface of the lower rotating disk 13 is 1.2 times the height of the lifting disk 23.
When the rock drilling rod falls down to drill rock, the movement of the rock drilling rod is shown in figure 2. During the lowering of the rock drilling rod, the lifting teeth 14 of the lower end face of the lifting disc 23 of the rock drilling rod 20 engage with the lower rotary disc 13 of the housing 10. When the rock drilling rod contacts the rock, the speed of the rock drilling rod 20 is rapidly reduced, and the shell 10 is independent of the rock drilling rod 20 and still maintains a certain speed, so that the lifting teeth 14 on the lower end face of the lifting disc 23 of the rock drilling rod 20 are separated from the lower rotary disc 13 of the shell 10, and the lifting teeth 14 on the upper end faces of the upper rotary disc 11 and the lifting disc 23 are contacted. Because the lifting teeth 14 on the two sides of the chisel rod 20 are symmetrical to each other, the rotary disc of the shell 10 is staggered by a certain angle, and in the process of meshing the upper rotary disc 11, the shell 10 rotates by a certain angle relative to the rod tip 21 along the tooth profile of the rotary disc under the driving of kinetic energy, so that the upper rotary disc 11 of the shell 10 is completely meshed with the lifting teeth 14 on the upper end face of the lifting disc 23. This movement causes the wand tip 21 to change angle relative to the housing 10.
When the rock drilling rod lifts after cutting rock, the movement process of the rock drilling rod is shown in figure 3. Before the rock drill rod is lifted, the lifting teeth 14 on the upper end surface of the lifting disc 23 engage with the upper turntable 11 of the housing 10. The lifting of the rock drilling rod is pulled by the chain, and since the chain is connected to the housing 10, the rod point 21 is independent of the housing 10, so that the housing 10 is lifted before the rod point 21. With the lifting of the housing 10, the lifting teeth 14 on the upper end surface of the lifting disc 23 and the upper lifting disc 11 are separated from each other, and the lower lifting disc 13 and the lifting teeth 14 on the lower end surface of the lifting disc 23 come into contact. Because the rotating discs of the rod tips 21 are symmetrical to each other, the rotating discs of the outer shell 10 are staggered at a certain angle, and in the process of meshing the lower rotating discs 13 and 8, the rod tips 21 rotate relative to the outer shell 10 at a certain angle along the tooth profile of the rotating discs under the driving of gravity, so that the lower rotating discs 13 of the outer shell 10 are completely meshed with the lifting teeth 14 on the lower end faces of the lifting discs 23 of the rod tips 21. This movement causes the wand tip 21 to change angle relative to the housing 10.
The self-rotating axe type rock drilling rod can realize the rotation of the rod tip 21 when repeatedly drilling rocks without manual assistance, greatly improves the damage effect and the working efficiency of the rocks, does not need to improve the existing lifting equipment, is simple and easy to implement
As shown in the drawings, the lifting teeth 12 of the present invention include an arc-shaped connecting portion and a vertically upward stopping portion, the connecting portion is connected to the stopping portion, and preferably, there are 4 lifting teeth 12 and two lifting teeth 14.
According to the self-rotating axe type rock drilling rod, kinetic energy of falling of the shell 10 of the rock drilling rod and gravitational potential energy of the rod tip 21 are respectively utilized by the self-rotating axe type rock drilling rod during chiseling and lifting, the rod tip 21 is driven to rotate through the process that the shell 10 and the upper and lower rotary discs 13 in the rod tip 21 are alternately meshed, so that the direction of a contact line between the rod tip 21 and rocks is changed during repeated chiseling, and the damage range and the damage effect of the rocks are increased. The axe type rock drilling rod does not need manual intervention in the process of adjusting the rod tip 21 direction, does not need to improve the existing lifting device in the using process, and is simple and easy to implement.
Finally, the method of the present application is only a preferred embodiment and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A self-rotating axe type rock drilling rod is characterized by comprising a shell and a rock drilling rod, wherein a containing cavity is arranged in the shell, an upper rotary disc and a lower rotary disc are arranged in the containing cavity, the upper rotary disc and the lower rotary disc are arranged at an interval, lifting teeth are arranged on the lower end face of the upper rotary disc and the upper end face of the lower rotary disc, the rock drilling rod comprises a rod tip and a rotating shaft, the rotating shaft is arranged on the rod tip, the rotating shaft is provided with the lifting discs, lifting teeth matched with the lifting teeth are arranged on the upper end face and the lower end face of each lifting disc, and the number of the lifting teeth is twice that of the lifting teeth; the lifting disc is clamped between the upper rotating disc and the lower rotating disc.
2. A self-rotating hatchet rock drill rod as claimed in claim 1, wherein the tip of said rod tip is acute.
3. A self-rotating axe rock drilling rod as recited in claim 1, wherein a spacing between a lower end surface of the upper turntable and an upper end surface of the lower turntable is greater than a height of the lifting disk.
4. A self-rotating hatchet rock drill rod as claimed in claim 1, wherein said lifting tooth includes a connecting portion in the shape of an arc and a stop portion facing vertically upwards, said connecting portion being connected to said stop portion.
5. A self-rotating axe rock drilling rod as claimed in claim 1, wherein there are 4 lifting teeth and two lifting teeth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121991697.5U CN215586728U (en) | 2021-08-24 | 2021-08-24 | Self-rotating axe type rock drilling rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121991697.5U CN215586728U (en) | 2021-08-24 | 2021-08-24 | Self-rotating axe type rock drilling rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215586728U true CN215586728U (en) | 2022-01-21 |
Family
ID=79882597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121991697.5U Active CN215586728U (en) | 2021-08-24 | 2021-08-24 | Self-rotating axe type rock drilling rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215586728U (en) |
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2021
- 2021-08-24 CN CN202121991697.5U patent/CN215586728U/en active Active
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