Drill bit suspension driving mechanism

Abstract

The utility model relates to a drill bit suspension driving mechanism which comprises a hydraulic motor and a hydraulic pump seat, the hydraulic pump seat is used for supporting the hydraulic motor, the hydraulic motor is detachably and fixedly connected with the hydraulic pump seat, an installation seat used for being connected with an excavator operation arm is arranged above the hydraulic pump seat, and a transition piece connected with the hydraulic pump seat is arranged at the bottom of the installation seat. The transition piece is rotatably connected to the bottom of the installation base through a first installation shaft, the hydraulic pump base is rotatably connected to the bottom of the transition piece through a second installation shaft, and the axis of the first installation shaft is perpendicular to the axis of the second installation shaft. The drill bit suspension driving mechanism is endowed with extremely high operation adaptability and operation flexibility through a modularized structural design and a multi-shaft connecting structure, so that the drill bit can be adaptively adjusted in multiple directions according to actual operation requirements, and various complex and changeable working environments can be easily coped with.

Description

Technical Field

[0001] The utility model relates to the technical field of supporting devices of drilling rigs, in particular to a drill bit suspension driving mechanism. Background Art

[0002] Drilling plays a vital role in many fields of modern industry, such as construction, mining and machinery manufacturing. In order to improve the efficiency and accuracy of drilling operations, many studies are devoted to the development of various drill suspension drive mechanisms to meet the growing industrial needs.

[0003] Hydraulic drive technology has occupied a dominant position in the design and application of drill drive mechanisms due to its excellent efficiency and powerful control capabilities. Despite this, the hydraulic drive drill suspension mechanisms on the current market still have limitations in certain design aspects: for example, traditional drill drive mechanisms mostly use a rigid connection method, which limits the adjustment angle of the drill bit and its adaptability to changing working environments. In addition, the connection between the hydraulic motor and the hydraulic pump seat is not flexible enough, which not only increases the complexity of operation, but also may bring potential safety hazards. At the same time, the stability and limit problems of the hydraulic pump seat are also key factors affecting operating efficiency and safety. Summary of the invention

[0004] In order to solve the above problems, the utility model provides a drill bit suspension drive mechanism which improves operation stability and safety.

[0005] In order to achieve the above-mentioned purpose, the drill suspension drive mechanism designed by the utility model includes a hydraulic motor and a hydraulic pump seat, the hydraulic pump seat is used to support the hydraulic motor, the hydraulic motor is detachably fixedly connected to the hydraulic pump seat, a mounting seat for connecting to the excavator operating arm is provided above the hydraulic pump seat, a transition piece connected to the hydraulic pump seat is provided at the bottom of the mounting seat, the transition piece is rotatably connected to the bottom of the mounting seat through a first mounting shaft, the hydraulic pump seat is rotatably connected to the bottom of the transition piece through a second mounting shaft, and the axis of the first mounting shaft and the axis of the second mounting shaft are perpendicular to each other.

[0006] In order to enable the hydraulic motor to obtain balanced supporting force, the transition piece includes a first bushing, a second bushing and a cross mounting plate, the first bushing and the second bushing are both fixed on the cross mounting plate, and the axes of the first bushing and the second bushing are perpendicular to each other, two spaced mounting shaft seats are provided at the bottom of the mounting seat, the first mounting shaft is rotatably connected to the mounting shaft seats, the first bushing is sleeved on the first mounting shaft and located between the two mounting shaft seats, and the second bushing is provided on the second mounting shaft.

[0007] In order to increase the stability of the mechanism during operation, a positioning frame is provided on one side of the mounting seat, the positioning frame is located next to the hydraulic pump seat, and a limiting plate is fixedly installed on the positioning frame toward one side of the hydraulic pump seat, and the side edge of the limiting plate is bent to form at least two limiting edges, and the two limiting edges are respectively located in two relative swinging directions of the hydraulic pump seat.

[0008] In order to protect the hydraulic motor and facilitate hydraulic connection, the hydraulic pump seat includes a base plate and side plates arranged on opposite sides of the base plate. The two side plates cooperate with the base plate to form a space for accommodating the hydraulic motor. The base plate is provided with a first hole for the hydraulic motor output shaft to pass through, and the side plate is provided with a second hole for the hydraulic motor oil pipe to pass through.

[0009] In order to improve the overall rigidity of the hydraulic pump seat, a reinforcing angle plate is fixedly installed at the connection between the side plate and the bottom plate.

[0010] In order to facilitate the installation and replacement of the drill bit, a connecting sleeve for connecting with the drill bit is detachably fixedly connected to the output shaft of the hydraulic motor, and the connecting sleeve is keyed to the output shaft of the hydraulic motor.

[0011] The drill suspension drive mechanism designed by the utility model endows the application with extremely high operational adaptability and operational flexibility through modular structural design and multi-axis connection structure, so that the drill bit can be adaptively adjusted in multiple directions according to actual operational needs, and can easily cope with various complex and changeable working environments. At the same time, the precise limiting system composed of the positioning frame and the limiting plate in the mechanism effectively improves the stability and safety of the operation and significantly reduces the safety risks during operation. The combined effect of these designs not only improves the efficiency and output quality of the drilling operation, but also provides users with a more economical and simple operation method, further optimizing the overall user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural stereogram of the present application;

[0013] Figure 2 is a front plan view of the present application;

[0014] Figure 3 It is a three-dimensional exploded view of the structure of the present application;

[0015] Figure 4 It is a specific usage diagram in one embodiment of the present application.

[0016] Among them: hydraulic motor 1, hydraulic pump seat 2, bottom plate 21, side plate 22, first hole 23, second hole 24, mounting seat 3, mounting shaft seat 31, transition piece 4, first shaft sleeve 41, second shaft sleeve 42, cross mounting plate 43, first mounting shaft 5, second mounting shaft 6, positioning frame 7, limit plate 71, limit edge 72, reinforcing angle plate 8, connecting shaft sleeve 9. DETAILED DESCRIPTION

[0017] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0018] Example 1.

[0019] like Figure 1-4 As shown, the drill suspension drive mechanism described in this embodiment includes a hydraulic motor 1 and a hydraulic pump seat 2, wherein the hydraulic pump seat 2 is used to support the hydraulic motor 1, and the hydraulic motor 1 is detachably fixedly connected to the hydraulic pump seat 2. A mounting seat 3 for connecting to an excavator operating arm is provided above the hydraulic pump seat 2, and a transition piece 4 connected to the hydraulic pump seat 2 is provided at the bottom of the mounting seat 3. The transition piece 4 is rotatably connected to the bottom of the mounting seat 3 via a first mounting shaft 5, and the hydraulic pump seat 2 is rotatably connected to the bottom of the transition piece 4 via a second mounting shaft 6, and the axis of the first mounting shaft 5 and the axis of the second mounting shaft 6 are perpendicular to each other.

[0020] When implementing it, Figure 4 As shown, first, the hydraulic motor 1 and the hydraulic pump seat 2 are first assembled by a detachable fixed connection method (usually using bolts), which is convenient for subsequent maintenance and disassembly. Then, the upper mounting seat 3 of the hydraulic pump seat 2 is connected to the operating arm of the excavator. This step ensures that the drill bit suspension drive mechanism can be hoisted and moved to the working position as a whole. At the same time, the drill bit is designed to be connected to the power output end of the hydraulic motor 1 so as to receive power from the hydraulic motor during operation and perform effective drilling operations.

[0021] During the operation, the operator can use the control function of the excavator operating arm to accurately position the drill suspension drive mechanism, that is, the hydraulic pump seat 2, to the predetermined working position. Subsequently, the hydraulic motor 1 starts and provides the necessary power to drive the drill bit to rotate and advance to perform the drilling task. In this process, the transition piece 4, the first mounting shaft 5 and the second mounting shaft 6 in this embodiment work together. Compared with the traditional rigidly connected drill bit drive mechanism, this design uniquely gives the drill bit driven by the hydraulic motor 1 the ability to micro-move in two vertical planes. This micro-motion design enables the mechanism to maintain continuous drilling action when encountering hard or uneven geological conditions. That is, this micro-motion helps to break the continuity of hard materials such as rocks, reduces the continuous friction between the drill bit and the hard material, and makes the entire drilling process smoother, thereby effectively avoiding the drill bit from getting stuck and reducing the possibility of equipment damage or operation interruption. At the same time, this also reduces the operating burden of the operator because they do not need to frequently adjust the drilling process, thereby improving the comfort and safety of the operation.

[0022] Specifically, if Figure 1 , Figure 2 and Figure 3 As shown, the transition piece 4 includes a first shaft sleeve 41, a second shaft sleeve 42 and a cross mounting plate 43, the first shaft sleeve 41 and the second shaft sleeve 42 are both fixed on the cross mounting plate 43, and the axes of the first shaft sleeve 41 and the second shaft sleeve 42 are perpendicular to each other, and two spaced mounting shaft seats 31 are provided at the bottom of the mounting seat 3, the first mounting shaft 5 is rotatably connected to the mounting shaft seats 31, the first shaft sleeve 41 is sleeved on the first mounting shaft 5 and is located between the two mounting shaft seats 31, and the second shaft sleeve 42 is provided on the second mounting shaft 6.

[0023] In this way, the first sleeve 41 and the second sleeve 42 are fixed on the cross mounting plate 43, and the axes of the two (41, 42) are perpendicular to each other to form a stable cross support structure, and then the mounting shaft seat 31 is used as a basis to allow the first mounting shaft 5 and the second mounting shaft 6 to rotate with the corresponding first sleeve 41 and the second sleeve 42 respectively, which helps to reduce unnecessary vibration and deflection that may be generated by the transition piece 4 during operation, thereby improving the overall stability of the drill bit suspension drive mechanism, especially in the operation scenario when drilling hard materials or uneven geology.

[0024] In some embodiments, Figure 1 , Figure 2 and Figure 3As shown, in order to increase the stability of the mechanism during operation, a positioning frame 7 is provided on one side of the mounting seat 3, and the positioning frame 7 is located beside the hydraulic pump seat 2, and a limiting plate 71 is fixedly installed on the positioning frame 7 toward one side of the hydraulic pump seat 2, and the side edge of the limiting plate 71 is bent to form at least two limiting edges 72, and the two limiting edges 72 are respectively located in two relative swinging directions of the hydraulic pump seat 2.

[0025] In this way, the micro-movement of the hydraulic pump seat 2 is relative to the mounting seat 3. The positioning frame 7 is installed on one side of the mounting seat 3, close to the hydraulic pump seat 2, providing it with a stable reference benchmark. At the same time, a limit plate 71 is fixedly installed on the side of the positioning frame 7 facing the hydraulic pump seat 2. The side edge of the limit plate 71 is bent to form at least two limit edges 72, and these limit edges are respectively located in two relative directions where the hydraulic pump seat 2 may swing (on the side where the non-limiting plate 71 is located). Such a layout ensures that the hydraulic pump seat 2 is effectively constrained by the limit plate 71 and the limit edge 72 in any movement (the micro-movement toward the excavator is constrained by the mounting seat 3 and the excavator operating arm), preventing the drill bit from swinging too much, greatly improving the accuracy and stability of the drilling operation, and ensuring the smooth progress of the operation.

[0026] In some embodiments, Figure 3 As shown, in order to protect the hydraulic motor 1 and facilitate hydraulic connection, the hydraulic pump seat 2 includes a bottom plate 21 and side plates 22 arranged on opposite sides of the bottom plate 21. The two side plates 22 cooperate with the bottom plate 21 to enclose and form a space for accommodating the hydraulic motor 1. The bottom plate 21 is provided with a first hole 23 for the output shaft of the hydraulic motor 1 to pass through, and the side plate 22 is provided with a second hole 24 for the oil pipe of the hydraulic motor 1 to pass through.

[0027] This structural design provides a protective environment for the hydraulic motor 1, preventing it from being affected by external factors such as stone impact and other potential damaging factors. At the same time, the hole positions (23, 24) on the bottom plate 21 and the side plate 22 make the connection between the output shaft of the hydraulic motor 1 and the oil pipe simple and direct, which is convenient for installation and maintenance.

[0028] In some embodiments, Figure 1 and Figure 3 As shown, in order to improve the overall rigidity of the hydraulic pump seat 2, a reinforcing angle plate 8 is fixedly installed at the connection between the side plate 22 and the bottom plate 21. In this embodiment, the addition of the reinforcing angle plate 8 significantly improves the overall rigidity of the hydraulic pump seat 2, making the hydraulic pump seat more stable when bearing the force and pressure generated by the hydraulic motor 1, and reducing deformation or damage caused by vibration or impact.

[0029] In some embodiments, Figure 1 and Figure 3As shown, in order to facilitate the installation and replacement of the drill bit, a connecting sleeve 9 for connecting to the drill bit is detachably fixedly connected to the output shaft of the hydraulic motor 1, and the connecting sleeve 9 is keyed with the output shaft of the hydraulic motor 1. In this embodiment, the detachably fixedly connected connecting sleeve 9 allows the drill bit to be quickly installed and replaced, which greatly reduces the downtime during operation, improves work efficiency, and enables the hydraulic motor 1 to adapt to a variety of drill bits of different specifications and types, thereby enhancing the adaptability and flexibility of the entire drill bit suspension drive mechanism.

[0030] The drill suspension drive mechanism provided in this embodiment has extremely high operational adaptability and operational flexibility through modular structural design and multi-axis connection structure, so that the drill bit can be adaptively adjusted in multiple directions according to actual operational needs, and can easily cope with various complex and changeable working environments. At the same time, the precise limiting system composed of the positioning frame and the limiting plate in the mechanism effectively improves the stability and safety of the operation and significantly reduces the safety risks during operation. The combined effect of these designs not only improves the efficiency and output quality of drilling operations, but also provides users with a more economical and simple operation method, further optimizing the overall user experience.

[0031] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do 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 present invention.

[0032] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A drill bit suspension drive mechanism, comprising a hydraulic motor and a hydraulic pump seat, characterized in that: The hydraulic pump seat is used to support the hydraulic motor, and the hydraulic motor is detachably fixedly connected to the hydraulic pump seat. A mounting seat for connecting to the excavator operating arm is provided above the hydraulic pump seat, and a transition piece connected to the hydraulic pump seat is provided at the bottom of the mounting seat. The transition piece is rotatably connected to the bottom of the mounting seat through a first mounting shaft, and the hydraulic pump seat is rotatably connected to the bottom of the transition piece through a second mounting shaft, and the axis of the first mounting shaft and the axis of the second mounting shaft are perpendicular to each other.

2. The drill bit suspension drive mechanism according to claim 1, characterized in that: The transition piece includes a first shaft sleeve, a second shaft sleeve and a cross mounting plate, the first shaft sleeve and the second shaft sleeve are both fixed on the cross mounting plate, and the axes of the first shaft sleeve and the second shaft sleeve are perpendicular to each other, two spaced mounting shaft seats are provided at the bottom of the mounting seat, the first mounting shaft is rotatably connected to the mounting shaft seats, the first shaft sleeve is sleeved on the first mounting shaft and located between the two mounting shaft seats, and the second shaft sleeve is provided on the second mounting shaft.

3. The drill bit suspension drive mechanism according to claim 1, characterized in that: A positioning frame is provided on one side of the mounting seat, and the positioning frame is located next to the hydraulic pump seat, and a limiting plate is fixedly installed on the positioning frame toward the side of the hydraulic pump seat, and the side edge of the limiting plate is bent to form at least two limiting edges, and the two limiting edges are respectively located in two relative swinging directions of the hydraulic pump seat.

4. The drill bit suspension drive mechanism according to any one of claims 1 to 3, characterized in that: The hydraulic pump seat includes a bottom plate and side plates arranged on opposite sides of the bottom plate. The two side plates cooperate with the bottom plate to enclose a space for accommodating the hydraulic motor. The bottom plate is provided with a first hole for the hydraulic motor output shaft to pass through, and the side plate is provided with a second hole for the hydraulic motor oil pipe to pass through.

5. The drill bit suspension drive mechanism according to claim 4, characterized in that: A reinforcing angle plate is fixedly installed at the connection between the side plate and the bottom plate.

6. The drill bit suspension drive mechanism according to claim 4, characterized in that: A connecting sleeve for connecting with a drill bit is detachably fixedly connected to the output shaft of the hydraulic motor, and the connecting sleeve is keyed to the output shaft of the hydraulic motor.

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