Drilling machine

By introducing a triangular drill frame and a high-frequency water-cooled motor into the drilling machine, the problems of poor verticality and insufficient power in handheld drilling machines have been solved, achieving higher drilling accuracy and safety.

CN224088024UActive Publication Date: 2026-04-07TIANJIN SIFANG INTELLIGENT TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-15
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Existing handheld drilling machines suffer from problems such as poor hole verticality, unsafe operation, and insufficient power during use.

Method used

A triangular drill frame is used as a directional reference, combined with a high-frequency water-cooled motor as a power source, and connected by gear transmission and a reduction gearbox to achieve stable transmission and cooling of the drill bit.

Benefits of technology

It improves the verticality of the opening, enhances operational safety, and provides greater power output.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a drilling machine. A drilling machine is composed of the following components: a drilling frame, and a rack is arranged on the outer side of a vertical rod of the drilling frame; the sliding box is arranged on the outer side of the vertical rod of the drilling frame in a sleeving mode, and the sliding box is in transmission connection with the drilling frame in a gear meshing mode; the reduction gearbox is fixedly connected with the outer side of the sliding box; the high-frequency water-cooled motor is fixedly arranged on the top side of the reduction gearbox, and an output shaft of the high-frequency water-cooled motor is in transmission connection with a driving wheel of the reduction gearbox; and an output shaft of the reduction gearbox is fixedly connected with the drill bit. The drilling machine disclosed by the utility model has the beneficial effects that 1, the triangular drilling frame is adopted and can be used as a reference object in the opening direction, so that the drilling perpendicularity is improved; 2, the triangular drilling rig is adopted, so that a worker can hold the drilling rig more easily during operation, and the safety coefficient of the operator is improved; 3, a high-frequency water-cooled motor is used as power, so that the size is small, the weight is light and the power is large;
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Description

Technical Field

[0001] This utility model relates to a drilling machine. Background Technology

[0002] In the construction industry, drilling operations are frequently required. Currently, drilling machines are used for drilling. A drilling machine is a general term for machinery and equipment that uses a tool that is harder and sharper than the target object to leave a cylindrical hole or cavity in the target object through rotary cutting or rotary extrusion. It is also called a drilling machine, hole punch, eye punch, through hole machine, etc.

[0003] Handheld drilling machines are widely used because they avoid taking up extra operating space and are easy to carry. However, handheld drilling machines have the following shortcomings during use: 1. The drilling direction is controlled by feeling, resulting in poor verticality of the hole; 2. If the hole hits the steel bar, the reaction force can easily cause injury to the operator; 3. Low power. Utility Model Content

[0004] Purpose of the utility model: This utility model addresses the problems existing in the prior art by disclosing a drilling machine. This utility model uses a high-frequency water-cooled motor as its power source, resulting in a small size, light weight, and high power output.

[0005] Technical solution: A drilling machine, comprising the following components:

[0006] A drill frame, wherein a rack is provided on the outer side of the vertical rod of the drill frame;

[0007] A sliding box is fitted onto the outside of the vertical rod of the drill frame, and the sliding box and the drill frame are connected by gear meshing.

[0008] The gearbox is fixedly connected to the outside of the slide box;

[0009] A high-frequency water-cooled motor is fixed on the top side of the gearbox, and the output shaft of the high-frequency water-cooled motor is connected to the drive wheel of the gearbox via a transmission.

[0010] The drill bit is fixedly connected to the output shaft of the gearbox.

[0011] Furthermore, the drill frame is a triangular drill frame.

[0012] Furthermore, the slide box consists of the following components:

[0013] The sliding box housing is fitted onto the outside of the vertical rod of the drill frame;

[0014] A rotating shaft, in which a first gear is fitted, is formed by the mutual compression between the sliding box housing and the vertical rod of the drill frame, causing the first gear to mesh with the rack;

[0015] Two first bearings are respectively sleeved on both ends of the rotating shaft;

[0016] The crank handle is connected at one end to one end of the rotating shaft by means of a pin or by means of a bolt.

[0017] Furthermore, the gearbox is composed of the following components.

[0018] A gearbox base has a drive wheel and a driven wheel inside. A third bearing is fitted on the lower middle part of the side wall of the drive wheel, and a second bearing is fitted on the upper middle part of the side wall of the drive wheel. A first bearing fixing cover is provided at the bottom of the drive wheel. The first bearing fixing cover is connected to the gearbox base by bolts. The driven wheel meshes with the drive wheel and is connected for transmission. The driven wheel is fitted on the outside of the output shaft. A fifth bearing is fitted on the lower middle part of the side wall of the output shaft, and a fourth bearing is fitted on the upper middle part of the side wall of the output shaft. A second bearing fixing cover is provided at the bottom of the output shaft. The second bearing fixing cover is connected to the gearbox base by bolts.

[0019] The bottom side of the gearbox cover is fixed to the top side of the gearbox base by bolts. One end of the output shaft passes through the gearbox cover and is fitted with an end cap. The end cap is connected to the gearbox cover by bolts.

[0020] Furthermore, the output shaft is provided with a hollow water supply channel, the end cover is provided with a gearbox inlet, the gearbox inlet is adapted to the hollow water supply channel of the output shaft, and the drill bit has an inlet in the axis that is adapted to the hollow water supply channel of the output shaft.

[0021] Furthermore, the high-frequency water-cooled motor has a motor water inlet in the upper middle part of its side wall, a motor water outlet in the lower middle part of its side wall, and a flange installed on the output shaft side of the high-frequency water-cooled motor.

[0022] Furthermore, the operating frequency of the high-frequency water-cooled motor is 100-400 Hz.

[0023] Furthermore, the drill bit is generally cylindrical, and its outer diameter is 10cm-100cm.

[0024] Beneficial effects: The drilling machine disclosed in this utility model has the following beneficial effects:

[0025] 1. A triangular drill holder is used, which can serve as a reference for the opening direction and improve the verticality of the hole opening;

[0026] 2. The triangular drill frame is adopted, which makes it easier for workers to grip and improves the safety of the operators.

[0027] 3. It uses a high-frequency water-cooled motor as its power source, which is small in size, light in weight, and powerful. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of a drilling machine disclosed in this utility model.

[0029] Figure 2 This is a schematic diagram of the drill frame.

[0030] Figure 3 This is a schematic diagram of the sliding box.

[0031] Figure 4 This is a schematic diagram of the explosion and disintegration of the slide box.

[0032] Figure 5 This is a schematic diagram of a high-frequency water-cooled motor.

[0033] Figure 6 This is a schematic diagram of a gearbox.

[0034] Figure 7 This is a schematic diagram of a flange.

[0035] Figure 8 This is a schematic diagram of the gearbox cover.

[0036] Figure 9 This is a schematic diagram of the gearbox base.

[0037] Figure 10 This is a schematic diagram of a gearbox with the gearbox cover and gearbox base concealed.

[0038] Figure 11 This is a schematic diagram of the first bearing fixing cover.

[0039] Figure 12 This is a schematic diagram of the second bearing fixing cover.

[0040] Figure 13 This is a schematic diagram of the drive wheel.

[0041] Figure 14 This is a schematic diagram of the driven wheel.

[0042] Figure 15 This is a schematic diagram of the output shaft.

[0043] Figure 16 This is a schematic diagram of the end cap.

[0044] Figure 17 This is a schematic diagram of a drill bit.

[0045] Figure 18 This is a schematic diagram of the axial cross-section of the gearbox.

[0046] in:

[0047] 1-Drill Frame 11-Rack 2-Slide Box 21-Slide box housing 22-First Bearing 23-Rotation axis 24-First Gear 25- Crank handle 3-High-frequency water-cooled motor 31-Motor inlet 32-Motor outlet 41-Flange 4- Gearbox 42- Gearbox cover 43-Gearbox Base 44-First bearing fixing cover 45-Second Bearing Fixing Cover 46-Drive wheel 47-Driven wheel 48-Second Bearing 49-Third Bearing 50-Fourth Bearing 51-Fifth Bearing 52-Output Shaft 53-End Cap 54-Gearbox Inlet 5-Drill Bit Detailed Implementation

[0048] The specific embodiments of this utility model are described in detail below.

[0049] The "range" disclosed in this utility model is defined by a lower limit and an upper limit. A given range is defined by selecting a lower limit and an upper limit, which define the boundaries of a particular range. Ranges defined in this way can include or exclude endpoints and can be arbitrarily combined; that is, any lower limit can be combined with any upper limit to form a range. For example, if a range of 10–50 is listed for a specific parameter, it is also expected that ranges of 10–40 and 20–50 are also included. Furthermore, if the minimum range values ​​are listed as 1 and 2, and the maximum range values ​​are listed as 3, 4, and 5, then the following ranges are all expected: 1–3, 1–4, 1–5, 2–3, 2–4, and 2–5. In this application, unless otherwise stated, the numerical range "a–b" represents a shortened representation of any combination of real numbers between a and b, where a and b are real numbers. For example, the numerical range "0–5" means that all real numbers between "0–5" have been listed herein; "0–5" is merely a shortened representation of these numerical combinations.

[0050] Unless otherwise specified, all embodiments and optional embodiments of this application can be combined to form new technical solutions.

[0051] Unless otherwise specified, all technical features and optional technical features of this application may be combined to form new technical solutions.

[0052] Unless otherwise specified, all steps in this application may be performed sequentially or randomly, preferably sequentially. For example, the method includes steps (a) and (b), indicating that the method may include steps (a) and (b) performed sequentially, or it may include steps (b) and (a) performed sequentially. For example, the mention that the method may also include step (c) indicates that step (c) may be added to the method in any order. For example, the method may include steps (a), (b), and (c), or it may include steps (a), (c), and (b), or it may include steps (c), (a), and (b), etc.

[0053] Unless otherwise specified, the terms "comprising" and "including" as used in this application can be open-ended or closed-ended. For example, "comprising" and "including" can mean that other components not listed may also be included, or that only the listed components may be included.

[0054] Unless otherwise specified, the reaction will proceed under normal temperature and pressure conditions.

[0055] Unless otherwise specified, all parts or percentages are by weight or by weight percentage.

[0056] In this invention, all the substances used are known substances that can be purchased or synthesized by known methods.

[0057] In this invention, all the devices or equipment used are conventional devices or equipment known in the art and are readily available.

[0058] like Figures 1-18 As shown, a drilling machine consists of the following components:

[0059] Drill frame 1, wherein a rack 11 is provided on the outer side of the vertical rod of the drill frame 1;

[0060] The sliding box 2 is sleeved on the outside of the vertical rod of the drill frame 1, and the sliding box 2 and the drill frame 1 are connected by gear transmission.

[0061] The reduction gearbox 4 is fixedly connected to the outside of the slide box 2;

[0062] A high-frequency water-cooled motor 3 is fixed on the top side of the gearbox 4, and the output shaft of the high-frequency water-cooled motor 3 is connected to the drive wheel 46 of the gearbox 4.

[0063] The drill bit 5 is fixedly connected to the output shaft 52 of the gearbox 4.

[0064] Furthermore, the drill frame 1 is a triangular drill frame.

[0065] Furthermore, the slide box 2 is composed of the following components:

[0066] The sliding box housing 21 is sleeved on the outside of the vertical rod of the drill frame 1;

[0067] The rotating shaft 23 has a first gear 24 sleeved in its middle. The first gear 24 meshes with the rack 11 by the mutual compression between the sliding box housing 21 and the vertical rod of the drill frame 1.

[0068] Two first bearings 22 are respectively sleeved on both ends of the rotating shaft 23;

[0069] The crank handle 25 is connected at one end to one end of the rotating shaft 23 by means of a pin or by means of a bolt.

[0070] Furthermore, the gearbox 4 is composed of the following components.

[0071] The gearbox base 43 houses a drive wheel 46 and a driven wheel 47. A third bearing 49 is fitted onto the lower middle part of the side wall of the drive wheel 46, and a second bearing 48 is fitted onto the upper middle part of the side wall of the drive wheel 46. A first bearing fixing cover 44 is provided at the bottom of the drive wheel 46. The first bearing fixing cover 44 is connected to the gearbox base 43 by bolts. The driven wheel 47 meshes with the drive wheel 46 and is connected for transmission. The driven wheel 47 is fitted onto the outside of the output shaft 52. A fifth bearing 51 is fitted onto the lower middle part of the side wall of the output shaft 52, and a fourth bearing 50 is fitted onto the upper middle part of the side wall of the output shaft 52. A second bearing fixing cover 45 is provided at the bottom of the output shaft 52 and is connected to the gearbox base 43 by bolts.

[0072] The bottom side of the gearbox cover 42 is fixed to the top side of the gearbox base 43 by bolts. One end of the output shaft 52 passes through the through hole on the gearbox cover 42 and is fitted with an end cap 53. The end cap 53 is connected to the gearbox cover 42 by bolts.

[0073] Furthermore, the output shaft 52 is provided with a hollow water supply channel, and the end cover 53 is provided with a gearbox inlet 54. The gearbox inlet 54 is adapted to the hollow water supply channel of the output shaft 52, and the drill bit 5 has an inlet in its axis that is adapted to the hollow water supply channel of the output shaft 52. Cooling water enters from the gearbox inlet 54, flows into the hollow water supply channel of the output shaft 52, and then flows into the interior of the drill bit 5 through the inlet in its axis that is adapted to the hollow water supply channel of the output shaft 52. During operation, the drill bit can be cooled by this cooling water.

[0074] Furthermore, the high-frequency water-cooled motor 3 has a motor water inlet 31 on the upper middle part of its side wall and a motor water outlet 32 ​​on the lower middle part of its side wall. A flange 41 is mounted on the output shaft side of the high-frequency water-cooled motor 3. Bolts pass through the threaded holes of the flange 41 of the high-frequency water-cooled motor 3 and connect to the gearbox 4. Water flows into the high-frequency water-cooled motor 3 from the motor water inlet 31, carrying away the heat generated during operation, and then flows out from the motor water outlet 32.

[0075] Furthermore, the high-frequency water-cooled motor 3 operates at a frequency of 100 Hz. In another embodiment, the high-frequency water-cooled motor 3 operates at a frequency of 400 Hz. In another embodiment, the high-frequency water-cooled motor 3 operates at a frequency of 200 Hz. In yet another embodiment, the high-frequency water-cooled motor 3 operates at a frequency of 300 Hz. The high-frequency water-cooled motor 3 achieves greater power within a small size and weight by using a frequency converter to increase the electrical frequency to between 100-400 Hz.

[0076] Further, the drill bit 5 is generally cylindrical, and its outer diameter is 10 cm. In another embodiment, the drill bit 5 is generally cylindrical, and its outer diameter is 100 cm. In another embodiment, the drill bit 5 is generally cylindrical, and its outer diameter is 30 cm. In yet another embodiment, the drill bit 5 is generally cylindrical, and its outer diameter is 80 cm.

[0077] When drilling large holes, the gearbox base 43 and slide box 2 are combined to make the output shaft 52 farther away from the drill frame 1, so that the large drill bit can be installed.

[0078] When drilling small holes, the gearbox cover 42 and the slide box 2 are combined to bring the output shaft 52 closer to the drill holder 1, so that a small drill bit can be installed. The drill bit being closer to the drill holder 1 provides better support.

[0079] The embodiments of this utility model have been described in detail above. However, this utility model is not limited to the above embodiments, and various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of this utility model.

Claims

1. A drilling machine, characterized in that, It consists of the following components: A drill frame, wherein a rack is provided on the outer side of the vertical rod of the drill frame; A sliding box is fitted onto the outside of the vertical rod of the drill frame, and the sliding box and the drill frame are connected by gear meshing. The gearbox is fixedly connected to the outside of the slide box; A high-frequency water-cooled motor is fixed on the top side of the gearbox, and the output shaft of the high-frequency water-cooled motor is connected to the drive wheel of the gearbox via a transmission. The drill bit is fixedly connected to the output shaft of the gearbox.

2. A drilling machine as described in claim 1, characterized in that, The slide box consists of the following components: The sliding box housing is fitted onto the outside of the vertical rod of the drill frame; A rotating shaft, in which a first gear is fitted, is formed by the mutual compression between the sliding box housing and the vertical rod of the drill frame, causing the first gear to mesh with the rack; Two first bearings are respectively sleeved on both ends of the rotating shaft; The crank handle is connected at one end to one end of the rotating shaft by means of a pin or by means of a bolt.

3. A drilling machine as described in claim 1, characterized in that, The gearbox consists of the following components. A gearbox base has a drive wheel and a driven wheel inside. A third bearing is fitted on the lower middle part of the side wall of the drive wheel, and a second bearing is fitted on the upper middle part of the side wall of the drive wheel. A first bearing fixing cover is provided at the bottom of the drive wheel. The first bearing fixing cover is connected to the gearbox base by bolts. The driven wheel meshes with the drive wheel and is connected for transmission. The driven wheel is fitted on the outside of the output shaft. A fifth bearing is fitted on the lower middle part of the side wall of the output shaft, and a fourth bearing is fitted on the upper middle part of the side wall of the output shaft. A second bearing fixing cover is provided at the bottom of the output shaft. The second bearing fixing cover is connected to the gearbox base by bolts. The bottom side of the gearbox cover is fixed to the top side of the gearbox base by bolts. One end of the output shaft passes through the gearbox cover and is fitted with an end cap. The end cap is connected to the gearbox cover by bolts.

4. A drilling machine as described in claim 3, characterized in that, The output shaft is provided with a hollow water supply channel, and the end cover is provided with a gearbox inlet. The gearbox inlet is adapted to the hollow water supply channel of the output shaft, and the drill bit has an inlet in the axis that is adapted to the hollow water supply channel of the output shaft.

5. A drilling machine as described in claim 1, characterized in that, The high-frequency water-cooled motor has a motor water inlet in the upper middle part of its side wall and a motor water outlet in the lower middle part of its side wall. A flange is installed on the output shaft side of the high-frequency water-cooled motor.

6. A drilling machine as described in claim 1, characterized in that, The high-frequency water-cooled motor operates at a frequency of 100-400 Hz.

7. A drilling machine as described in claim 1, characterized in that, The drill bit is cylindrical in shape, and its outer diameter is 10cm-100cm.

8. A drilling machine as described in claim 1, characterized in that, The drill frame is a triangular drill frame.