A mobile device for a drill tank
By replacing the guide wheel with a cylindrical roller bearing in the moving mechanism of the drill box, the problem of severe wear of the copper bushing was solved, rolling friction was achieved, service life was extended, and stability and safety were improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CCTEG COAL MINING RES INST
- Filing Date
- 2024-12-20
- Publication Date
- 2026-07-21
AI Technical Summary
In the existing technology, the copper sleeve of the drill box of the drilling rig has a short service life due to the sliding friction between the guide wheel and the copper sleeve, which increases the construction cost and affects the construction progress.
The guide wheel is replaced with a sealed cylindrical roller bearing to achieve rolling friction, thereby reducing friction and extending the service life of the device. The design of the positioning sleeve and retaining ring prevents liquid splashing and maintains the lubrication of the bearing.
It significantly reduces friction, extends the service life of the device, reduces wear and energy consumption, and improves the stability and safety of the device.
Smart Images
Figure CN119777965B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of mining machinery technology, and in particular to a moving device for a drill box. Background Technology
[0002] With the increasing number of infrastructure and underground engineering projects, anchor drilling rigs are being used more and more widely in construction. In related technologies, the movement of the drill box on the feed cylinder of the drilling rig is typically achieved using the following structure: a shaft is installed on the peripheral wall of the cylinder, a copper sleeve is fitted onto the shaft, and a guide wheel is located outside the copper sleeve. A chain is directly wound around the guide wheel, driving the guide wheel to rotate, thereby realizing the feed movement of the drill box. In this structure, the copper sleeve and the mounting shaft are relatively stationary, while the guide wheel and the copper sleeve rotate relative to each other.
[0003] However, the relative rotation between the guide wheel and the copper bushing generates sliding friction. Furthermore, because the copper bushing is relatively soft, this sliding friction easily leads to severe wear, resulting in a short service life. This not only increases construction costs, but the frequent replacement of the copper bushing also affects the construction schedule. Summary of the Invention
[0004] The present invention aims to at least partially solve one of the technical problems in the related art.
[0005] Therefore, embodiments of the present invention propose a moving device for a drill box, which improves the motion structure of the drill box to solve the problem of short service life of copper bushings in related technologies.
[0006] The moving device for the drill box according to an embodiment of the present invention includes:
[0007] The frame includes a fixed frame, a movable frame, and a secondary hydraulic cylinder. The secondary hydraulic cylinder includes a cylinder rod, a primary cylinder, and a secondary cylinder. One end of the cylinder rod is connected to the fixed frame, and the other end of the cylinder rod is slidably installed inside the primary cylinder. The primary cylinder is connected to the movable frame, and the secondary cylinder is slidably installed on the primary cylinder.
[0008] A movable component includes a fixed component, a transmission component, and two rotating components. The two rotating components are respectively located at both ends of the secondary cylinder. The transmission component is rotatably mounted around the two rotating components. The transmission component is connected to the movable frame through the fixed component. Each rotating component includes a mounting shaft, a positioning sleeve, and a roller bearing mounted on the mounting shaft. The roller bearing is located on the side of the positioning sleeve away from the secondary cylinder and contacts the positioning sleeve. The transmission component is mounted around the roller bearing.
[0009] The moving device for the drill box in this embodiment of the invention uses a sealed cylindrical roller bearing instead of the guide wheel in the related technology, and changes the sliding friction between the guide wheel and the copper sleeve in the related technology to the rolling friction of the bearing, which significantly reduces the friction and improves the service life of the device.
[0010] In some embodiments, the outer edge of the positioning sleeve has a chamfer, and the chamfer of the positioning sleeve is located at the end of the positioning sleeve near the secondary cylinder.
[0011] The movable device for the drill box in this embodiment of the invention has a beveled shape in the positioning sleeve that prevents external liquid from splashing onto the bearing and allows the liquid to flow down by gravity, thereby improving the service life of the bearing.
[0012] In some embodiments, the rotating member further includes a retaining ring connected to the end of the mounting shaft away from the secondary cylinder, and the roller bearing contacts the retaining ring.
[0013] In some embodiments, the outer edge of the retaining ring has a chamfer, and the chamfer is located at the end of the retaining ring away from the secondary cylinder.
[0014] In some embodiments, the guide angle of the positioning sleeve and the guide angle of the retaining ring are greater than or equal to 30° and less than or equal to 60°.
[0015] In some embodiments, the rotating element further includes a screw that passes through the retaining ring and connects to the end of the mounting shaft away from the secondary cylinder.
[0016] In some embodiments, the screws are multiple and are spaced apart around the central axis of the mounting shaft.
[0017] In some embodiments, the connection between the fastener and the movable frame is located in the middle of the movable frame.
[0018] In some embodiments, there are two moving components, which are respectively disposed opposite to each other on both sides of the secondary cylinder.
[0019] In some embodiments, the fixing frame is slidable, and the sliding direction of the fixing frame is consistent with the extension and retraction direction of the secondary hydraulic cylinder. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the initial state of the moving device for the drill box according to an embodiment of the present invention.
[0021] Figure 2 This is a schematic diagram of the working state of the moving device for the drill box according to an embodiment of the present invention.
[0022] Figure 3This is a schematic diagram of the structure of the secondary hydraulic cylinder according to an embodiment of the present invention.
[0023] Figure 4 This is a cross-sectional schematic diagram of the secondary hydraulic cylinder according to an embodiment of the present invention.
[0024] Figure 5 This is an exploded view of the rotating component structure according to an embodiment of the present invention.
[0025] Figure label:
[0026] 1-Fixed frame, 2-Modible frame, 3-Secondary cylinder, 301-Cylinder rod, 302-First-stage cylinder barrel, 303-Secondary cylinder barrel, 4-Fixed component, 5-Transmission component, 6-Rotating component, 601-Mounting shaft, 602-Positioning sleeve, 603-Roller bearing, 604-Retaining ring, 605-Screw, 7-Drill box. Detailed Implementation
[0027] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.
[0028] The following describes a moving device for a drill box according to an embodiment of the present invention with reference to the accompanying drawings.
[0029] like Figures 1 to 5 As shown, the mobile device for the drill box in this embodiment of the invention includes a frame and a mobile component.
[0030] The frame includes a fixed frame 1, a movable frame 2, and a secondary hydraulic cylinder 3. Optionally, both the fixed frame 1 and the movable frame 2 are composed of a base plate and a top plate, as well as a support plate connecting the two. The support plate of the fixed frame 1 is a telescopic plate, and its sliding design allows the position of the drill box 7 to be adjusted according to different construction needs, increasing the applicability and flexibility of the device. The movable frame 2 moves between the base plate and the top plate of the fixed frame 1.
[0031] The extension and retraction direction of the secondary cylinder 3 is consistent with that of the fixed frame 1. The secondary cylinder 3 includes a cylinder rod 301, a primary cylinder 302, and a secondary cylinder 303. One end of the cylinder rod 301 is connected to the base plate of the fixed frame 1, and the other end of the cylinder rod 301 is slidably installed inside the primary cylinder 302. The two ends of the primary cylinder 302 are respectively connected to the base plate and the top plate of the movable frame 2, that is, the cylinder rod 301 slides through the base plate of the movable frame 2 and connects to the base plate of the fixed frame 1. The secondary cylinder 303 is slidably installed on the primary cylinder 302. The length of the secondary cylinder 303 is greater than half the distance between the base plate and the top plate of the movable frame 2, and the secondary cylinder 303 moves between the base plate and the top plate of the movable frame 2.
[0032] For example, during construction, the top plate of the fixed frame 1 gradually extends until it contacts the rock wall. Then, the cylinder rod 301 of the secondary cylinder 3 extends, causing the primary cylinder 302 to drive the movable frame 2 from the bottom plate of the fixed frame 1 to the top plate of the fixed frame 1, until the top plate of the movable frame 2 contacts the top plate of the fixed frame 1. Then, the secondary cylinder 303 of the secondary cylinder 3 moves from the bottom plate of the movable frame 2 to the top plate of the movable frame 2. Alternatively, the secondary cylinder 303 moves first, followed by the primary cylinder 302.
[0033] The moving assembly includes a fixed component 4, a transmission component 5, and two rotating components 6. The two rotating components 6 are respectively located at both ends of the secondary cylinder 303. The transmission component 5 is rotatably mounted around the two rotating components 6, and is connected to the support plate of the movable frame 2 via the fixed component 4. Furthermore, the drill box 7 is mounted on the transmission component 5, thereby enabling the transmission component 5 to drive the drill box 7 to move.
[0034] Optionally, the transmission component 5 is a flexible transmission structure such as a chain or belt, and the fixing component 4 is a fixing block, which is fixed to the movable frame 2 and the transmission component 5 by bolt connection. Preferably, when the transmission component 5 is a chain, as the secondary cylinder 303 moves from the bottom plate of the movable frame 2 to the bottom plate of the movable frame 2, the chain rotates simultaneously with the movement of the secondary cylinder 303 under the positioning action of the fixing component 4.
[0035] like Figure 1 As shown, in the initial state, the drill box 7 is located at the bottom of the device. Figure 2 As shown, in the working state, the drill box 7 is moved to the top of the device by the extension and retraction of the fixed frame 1, the extension and retraction of the secondary cylinder 3, and the rotation of the chain.
[0036] Understandably, in underground engineering, tunnel excavation, or slope stabilization construction, the drilling height may vary from the ground surface to higher rock faces. The drill box 7 can move from the bottom to the top, ensuring effective drilling operations at different heights.
[0037] Optionally, the rotating component 6 includes a mounting shaft 601, a positioning sleeve 602 and a roller bearing 603 mounted on the mounting shaft 601. The roller bearing 603 is located on the side of the positioning sleeve 602 away from the secondary cylinder 303. The roller bearing 603 contacts the positioning sleeve 602, and the transmission component 5 surrounds the roller bearing 603.
[0038] Therefore, the moving device for the drill box in this embodiment of the invention, by using cylindrical roller bearings 603 instead of guide wheels in related technologies, realizes rolling friction instead of sliding friction, which greatly reduces the coefficient of friction, reduces energy consumption, reduces wear, and extends the service life of the device.
[0039] In some embodiments, such as Figure 4and Figure 5 As shown, the rotating component 6 also includes a retaining ring 604, which is connected to the end of the mounting shaft 601 away from the secondary cylinder 303, and the roller bearing 603 is in contact with the retaining ring 604.
[0040] Understandably, the retaining ring 604 prevents the roller bearing 603 from moving axially on the mounting shaft 601 due to vibration or axial force, thus avoiding bearing detachment or displacement. Furthermore, the retaining ring 604 and the locating sleeve 602 together seal the roller bearing 603, preventing lubricant leakage, maintaining the internal lubrication of the bearing, and also preventing external liquids from splashing onto the bearing.
[0041] Optionally, such as Figure 4 and Figure 5 As shown, the rotating component 6 also includes a screw 605, which passes through the retaining ring 604 and connects to the end of the mounting shaft 601 away from the secondary cylinder 303. Specifically, the retaining ring 604 has a through hole, and the end of the mounting shaft 601 has a mounting hole. The screw 605 passes through the through hole of the retaining ring 604 and is installed in the mounting hole of the mounting shaft 601, thereby facilitating the disassembly and assembly of the retaining ring 604 and simplifying the installation and maintenance process of the roller bearing 603.
[0042] Furthermore, there are multiple screws 605, which are spaced apart around the central axis of the mounting shaft 601. The uniform distribution of the multiple screws 605 helps to disperse pressure and improve the durability of the structure.
[0043] In some embodiments, such as Figure 4 and Figure 5 As shown, the outer edge of the positioning sleeve 602 has a chamfer, and the chamfer of the positioning sleeve 602 is located at the end of the positioning sleeve 602 closer to the secondary cylinder 303. Furthermore, the outer edge of the retaining ring 604 also has a chamfer, and the chamfer of the retaining ring 604 is located at the end of the retaining ring 604 furthest from the secondary cylinder 303.
[0044] Understandably, the retaining ring 604 and the positioning sleeve 602 are used to prevent surrounding liquids with a certain viscosity and easy crystallization from splashing onto the roller bearing 603, allowing the liquid to flow naturally down the guide angle under gravity, thus preventing the roller bearing 603 from jamming and improving the safety and stability of the device operation.
[0045] Optionally, the chamfer of the positioning sleeve 602 and the chamfer of the retaining ring 604 are greater than or equal to 30° and less than or equal to 60° to avoid problems such as the liquid not flowing down due to the angle being too small and stress concentration caused by the angle being too large.
[0046] In some embodiments, such as Figure 1 and Figure 2 As shown, the connection between the fixing part 4 and the movable frame 2 is located in the middle of the movable frame 2.
[0047] Understandably, placing the connection point between the fixing component 4 and the movable frame 2 in the middle of the movable frame 2 helps to evenly distribute the force, reduce structural deformation caused by eccentric loading, and thus improve the stability and service life of the entire moving device. More importantly, calculations show that the drill box 7 can slide from the bottom to the top of the movable frame 2, effectively utilizing the overall length of the movable frame 2.
[0048] And, as Figure 3 As shown, there are two moving components, which are respectively disposed on both sides of the secondary cylinder 303.
[0049] Understandably, the design of symmetrically arranging two moving components on both sides of the secondary cylinder 303 ensures the balance of the drill box 7 during movement and reduces vibration and noise caused by uneven weight distribution.
[0050] Therefore, the optimized position of the fixing component 4 and the symmetrical arrangement of the moving components have enhanced the mechanical strength and durability of the entire device, making it adaptable to complex and ever-changing construction environments.
[0051] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.
[0052] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0053] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0054] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0055] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0056] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.
Claims
1. A moving device for a drill box, characterized in that, include: The frame includes a fixed frame, a movable frame, and a secondary hydraulic cylinder. The secondary hydraulic cylinder includes a cylinder rod, a primary cylinder, and a secondary cylinder. One end of the cylinder rod is connected to the fixed frame, and the other end of the cylinder rod is slidably installed inside the primary cylinder. The primary cylinder is connected to the movable frame, and the secondary cylinder is slidably installed on the primary cylinder. A movable component includes a fixed component, a transmission component, and two rotating components. The two rotating components are respectively located at both ends of the secondary cylinder. The transmission component is rotatably mounted around the two rotating components. The transmission component is connected to the movable frame through the fixed component. Each rotating component includes a mounting shaft, a positioning sleeve, and a roller bearing mounted on the mounting shaft. The roller bearing is located on the side of the positioning sleeve away from the secondary cylinder and contacts the positioning sleeve. The transmission component is mounted around the roller bearing. When the transmission component is a chain, as the secondary cylinder moves from the bottom plate of the movable frame to the top plate of the movable frame, the chain rotates simultaneously with the movement of the secondary cylinder under the positioning action of the fixed component.
2. The moving device for the drill box according to claim 1, characterized in that, The outer edge of the positioning sleeve has a chamfer, and the chamfer of the positioning sleeve is located at the end of the positioning sleeve near the secondary cylinder.
3. The moving device for the drill box according to claim 2, characterized in that, The rotating component also includes a retaining ring, which is connected to the end of the mounting shaft away from the secondary cylinder, and the roller bearing is in contact with the retaining ring.
4. The moving device for the drill box according to claim 3, characterized in that, The outer edge of the retaining ring has a chamfer, and the chamfer is located at the end of the retaining ring away from the secondary cylinder.
5. The moving device for the drill box according to claim 4, characterized in that, The guide angle of the positioning sleeve and the guide angle of the retaining ring are greater than or equal to 30° and less than or equal to 60°.
6. The moving device for the drill box according to claim 4, characterized in that, The rotating component also includes a screw that passes through the retaining ring and connects to the end of the mounting shaft away from the secondary cylinder.
7. The moving device for a drill box according to claim 6, characterized in that, The screws are multiple and are spaced apart around the central axis of the mounting shaft.
8. The moving device for the drill box according to claim 1, characterized in that, The connection between the fixing member and the movable frame is located in the middle of the movable frame.
9. The moving device for a drill box according to claim 1, characterized in that, The moving assembly has two components, which are respectively disposed opposite to each other on both sides of the secondary cylinder.
10. The moving device for a drill box according to claim 1, characterized in that, The fixed frame is slidable, and the sliding direction of the fixed frame is consistent with the extension and retraction direction of the secondary hydraulic cylinder.