Variable-diameter hydraulic square drill

Abstract

The utility model discloses a variable-diameter hydraulic square drill, and relates to the technical field of drilling equipment. The variable-diameter hydraulic square drill comprises a cover plate, two sets of shells are arranged at the bottom of the cover plate, the cover plate and the two sets of shells are jointly provided with at least two sets of first bolt holes, the two sets of shells can be installed on the cover plate through bolts of the corresponding first bolt holes, and two sets of reinforcing plates are arranged between the two sets of shells. The two sets of reinforcing plates and the two sets of shells are jointly provided with at least two sets of second bolt holes, and the two sets of reinforcing plates can be installed on the two sets of shells through bolts of the corresponding second bolt holes. According to the variable-diameter hydraulic square drill, through cooperation of the cover plate, the shells and the first bolt holes, the distance between the two sets of shells, namely the distance between the first drilling tool and the second drilling tool on the two sides, can be adjusted by disassembling and assembling bolts and adjusting the mounting positions of the two sets of shells on the cover plate, the machining ruler of the square drill is changed, and multiple hole diameters can be machined through one drilling tool; and the practicability of the square drill is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling equipment, in particular to a hydraulic square drill with a variable diameter. Background Art

[0002] The rotary drilling square hole drill is a drill tool specially used for making square holes in materials by rotary drilling. It combines the characteristics of rotary cutting and square hole drill bits, and can complete the drilling of square holes efficiently and accurately.

[0003] The drill tools on some existing square drills are arranged in a fixed manner, and the positions of the drill tools are fixed, which means that the square drill can only process square holes of fixed sizes. This causes the drill tools to be replaced for different processing requirements, which is very costly. Therefore, we propose a variable diameter hydraulic square drill. Utility Model Content

[0004] The utility model aims to provide a hydraulic square drill with a variable diameter, which can solve the problem that the processing size of some existing square drills is limited.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a variable diameter hydraulic square drill, comprising:

[0006] The cover plate has two groups of shells at its bottom. The cover plate and the two groups of shells are both provided with at least two groups of first bolt holes. The two groups of shells can be bolted to the cover plate through the corresponding first bolt holes.

[0007] Preferably, two groups of reinforcement plates are arranged between the two groups of shells, and at least two groups of second bolt holes are commonly opened on the two groups of reinforcement plates and the two groups of shells. The two groups of reinforcement plates can be bolted to the two groups of shells through the corresponding second bolt holes.

[0008] Preferably, a group of first drilling tools are provided on the front and rear sides of the two groups of shells, and a group of second drilling tools are provided on one side of the two groups of shells.

[0009] Preferably, three groups of drivers are provided on the two groups of housings, and the output shafts of each group of drivers are fixedly connected to the corresponding first drilling tool and second drilling tool.

[0010] Preferably, at least two groups of drill teeth are fixedly mounted on the outer surfaces of the first drill tool and the second drill tool on the two groups of the housing.

[0011] Preferably, at least two groups of oil pipes are fixedly connected to the top of the cover plate, one end of each group of oil pipes is fixedly connected to a group of three-way ball valves, and the other end of each group of oil pipes is communicated with the actuators of each driver.

[0012] Preferably, a mechanical connection square head is fixedly installed on the top of the cover plate, and at least two groups of reinforcing ribs are fixedly installed on the outer surface of the mechanical connection square head, and each group of reinforcing ribs is fixedly installed on the top of the cover plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] (1) The variable diameter hydraulic square drill can adjust the installation positions of the two groups of shells on the cover plate by disassembling and assembling bolts through the cooperation of the cover plate, the shell and the first bolt hole, thereby adjusting the distance between the two groups of shells, that is, the distance between the first drilling tool and the second drilling tool on both sides, and changing the processing size of the square drill. This solves the problem that the drilling tools on some existing square drills are arranged in a fixed manner and the positions of the drilling tools are fixed, resulting in the square drill being able to only process square holes of fixed sizes, causing the drilling tools to need to be replaced for different processing requirements, which is costly, and improves the practicality of the square drill.

[0015] (2) The variable diameter hydraulic square drill, through the cooperation of the reinforcing plate and the second bolt hole, can adjust the distance between the two groups of shells by correspondingly replacing the reinforcing plate of the corresponding size and connecting the two groups of shells through the second bolt hole to reinforce the connection between the two groups of shells, thereby improving the stability of the square drill, ensuring the use effect of the square drill, and facilitating the promotion and use of the square drill. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0017] Figure 1 It is a top perspective view of the utility model;

[0018] Figure 2 It is a bottom-up stereogram of the present utility model;

[0019] Figure 3 It is a partial top perspective view of the utility model.

[0020] Figure numerals: 1. cover plate; 2. shell; 3. first drilling tool; 4. second drilling tool; 5. driver; 6. first bolt hole; 7. reinforcement plate; 8. second bolt hole; 9. drill tooth; 10. oil pipe; 11. three-way ball valve; 12. mechanical connection square head; 13. reinforcing rib. DETAILED DESCRIPTION

[0021] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0022] See also Figure 1-3 The utility model provides a technical solution: a variable diameter hydraulic square drill, comprising a cover plate 1, two groups of shells 2 are arranged at the bottom of the cover plate 1, at least two groups of first bolt holes 6 are commonly opened on the cover plate 1 and the two groups of shells 2, the two groups of shells 2 can be bolted to the cover plate 1 through the corresponding first bolt holes 6, two groups of reinforcing plates 7 are arranged between the two groups of shells 2, at least two groups of second bolt holes 8 are commonly opened on the two groups of reinforcing plates 7 and the two groups of shells 2, the two groups of reinforcing plates 7 can be bolted to the two groups of shells 2 through the corresponding second bolt holes 8, through the cooperation of the reinforcing plates 7 and the second bolt holes 8, when the distance between the two groups of shells 2 is adjusted, the reinforcing plates 7 of corresponding sizes are correspondingly replaced, and connected between the two groups of shells 2 through the second bolt holes 8, so as to reinforce the connection between the two groups of shells 2, thereby improving the stability of the square drill, ensuring the use effect of the square drill, and facilitating the promotion and use of the square drill.

[0023] Furthermore, a group of first drilling tools 3 are arranged on the front and rear sides of the two groups of shells 2, a group of second drilling tools 4 are arranged on one side of the two groups of shells 2, and three groups of drivers 5 are arranged on the two groups of shells 2. The drivers 5 are motors and transmissions. The output shafts of each group of drivers 5 are fixedly connected to the corresponding first drilling tools 3 and second drilling tools 4. At least two groups of drill teeth 9 are fixedly installed on the outer surfaces of the first drilling tools 3 and second drilling tools 4 on the two groups of shells 2. At least two groups of oil pipes 10 are fixedly connected to the top of the cover plate 1. One end of each group of oil pipes 10 is fixedly connected to a group of three-way ball valves 11. The other end of each group of oil pipes 10 is communicated with the actuators of each driver 5. The top of the cover plate 1 is fixedly installed with a mechanical connection. A square head 12 is connected, and at least two groups of reinforcing ribs 13 are fixedly installed on the outer surface of the mechanically connected square head 12. Each group of reinforcing ribs 13 is fixedly installed on the top of the cover plate 1. Through the cooperation of the cover plate 1, the shell 2 and the first bolt hole 6, the installation position of the two groups of shells 2 on the cover plate 1 can be adjusted by disassembling the bolts, and then the distance between the two groups of shells 2, that is, the distance between the first drilling tool 3 and the second drilling tool 4 on both sides is adjusted, and the processing size of the square drill is changed. This solves the problem that the drilling tools on some existing square drills are fixed in arrangement and the positions of the drilling tools are fixed, resulting in the square drill only being able to process square holes of fixed sizes, causing the drilling tools to need to be replaced for different processing requirements, which is costly, and improves the practicability of the square drill.

[0024] Working principle: Before use, adjust the distance between the two groups of shells 2, and install the two groups of shells 2 to the bottom of the cover plate 1 through bolts and the first bolt holes 6, and select two groups of reinforcement plates 7 of corresponding sizes, and install them between the two groups of shells 2 through bolts and the second bolt holes 8. When the distance between the two groups of shells 2 is changed again, it is sufficient to replace the reinforcement plates 7 of different sizes. When in use, the rotary drilling rig is connected to the mechanical connecting square head 12, and the oil pipe 10 is connected to the oil pipe of the hydraulic station or the rotary drilling rig through the three-way ball valve 11, thereby driving each driver 5 to start, and each driver 5 drives each first drilling tool 3 and second drilling tool 4 to rotate to drill holes.

[0025] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A variable diameter hydraulic square drill, characterized in that: include: A cover plate (1) is provided with two groups of shells (2) at its bottom, and at least two groups of first bolt holes (6) are provided on the cover plate (1) and the two groups of shells (2), and the two groups of shells (2) can be bolted to the cover plate (1) through the corresponding first bolt holes (6).

2. The variable diameter hydraulic square drill according to claim 1, characterized in that: Two groups of reinforcing plates (7) are arranged between the two groups of shells (2); at least two groups of second bolt holes (8) are commonly provided on the two groups of reinforcing plates (7) and the two groups of shells (2); the two groups of reinforcing plates (7) can be bolted to the two groups of shells (2) via the corresponding second bolt holes (8).

3. The variable diameter hydraulic square drill according to claim 2, characterized in that: A set of first drilling tools (3) is provided on the front and rear sides of the two sets of shells (2), and a set of second drilling tools (4) is provided on one side of the two sets of shells (2).

4. The variable diameter hydraulic square drill according to claim 3, characterized in that: Three sets of drivers (5) are provided on the two sets of housings (2), and the output shaft of each set of drivers (5) is fixedly connected to the corresponding first drilling tool (3) and second drilling tool (4).

5. The variable diameter hydraulic square drill according to claim 4, characterized in that: At least two groups of drill teeth (9) are fixedly mounted on the outer surfaces of the first drill tool (3) and the second drill tool (4) on the two groups of housings (2).

6. The variable diameter hydraulic square drill according to claim 5, characterized in that: At least two groups of oil pipes (10) are fixedly connected to the top of the cover plate (1), one end of each group of oil pipes (10) is fixedly connected to a group of three-way ball valves (11), and the other end of each group of oil pipes (10) is in communication with the actuators of each driver (5).

7. The variable diameter hydraulic square drill according to claim 6, characterized in that: A mechanical connection square head (12) is fixedly mounted on the top of the cover plate (1), and at least two groups of reinforcing ribs (13) are fixedly mounted on the outer surface of the mechanical connection square head (12), and each group of reinforcing ribs (13) is fixedly mounted on the top of the cover plate (1).

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