Anchor rod drill boom and pipe distribution method thereof

Abstract

The invention discloses an anchor rod drill boom and a pipe distribution method thereof.The anchor rod drill boom comprises a first-stage framework and a drill box, a liquid distribution plate is arranged on the first-stage framework, the drill box is slidably arranged on the first-stage framework, a pipeline combing plate is arranged on the drill box, and the pipeline combing plate and a pipeline connector of the liquid distribution plate are consistent in height in the thickness direction of the first-stage framework; the drilling box is provided with two sliding limiting positions, the distance between the two limiting positions of the pipeline carding plate is s, and the distance between the pipeline connector of the liquid distribution plate and the pipeline connector of the pipeline carding plate at any limiting position is s / 2. By optimizing the position of the liquid distribution plate, the pipeline is shortest under the condition that the working and using requirements of the drill boom are met. And meanwhile, the pipeline carding plate is additionally arranged on the drill box and is used for carding and aligning the pipelines, and the pipeline connectors of the pipeline carding plate and the liquid distribution plate are consistent in height in the thickness direction of the drill boom, so that the pipelines are prevented from being twisted in the movement process of the drill box, the risk that the pipelines are hung off is reduced, and the use performance and safety of the drill boom are improved.

Description

Technical Field

[0001] The invention relates to the technical field of mining machinery, and in particular to an anchor drill arm and a pipe laying method thereof. Background Art

[0002] With the development of mineral resources, anchor drill arm, as an important drilling equipment, plays an important role in the fields of tunnel excavation, chamber construction, mineral resource exploration, etc. However, the anchor drill arm technology in the related technology has certain problems in the actual application process. For example, the pipeline from the liquid distribution plate to the drill box is freely connected, the pipe length is long and the distribution is messy, resulting in the pipe length required for the drill box at the bottom of the drill arm and the drill box at the top of the drill arm being inconsistent, and the pipe length is long. In addition, the pipeline is not combed and the distribution is messy, which makes the risk of the pipeline hanging up during the movement of the drill box greater. Summary of the invention

[0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0004] To this end, an embodiment of the present invention provides an anchor drill boom, which has the characteristics of high stability and high safety.

[0005] The anchor drill arm of the embodiment of the present invention comprises: a primary frame and a drill box, the primary frame is provided with a liquid distribution plate, the drill box is slidably arranged on the primary frame along the length direction of the primary frame, the drill box is provided with a pipeline combing plate, the pipeline combing plate and the liquid distribution plate are connected via pipelines, and the pipeline interface of the pipeline combing plate and the pipeline interface of the liquid distribution plate are consistent in height in the thickness direction of the primary frame;

[0006] The drill box has two extreme positions on the primary frame, one of which is when the drill box slides to a position adjacent to the bottom end of the primary frame, and the other is when the drill box slides to a position adjacent to the top end of the primary frame. In the length direction of the primary frame, the distance between the pipeline interface of the pipeline combing plate at the two extreme positions is s, and the distance between the pipeline interface of the liquid distribution plate and the pipeline interface of the pipeline combing plate at any of the extreme positions is s / 2.

[0007] The anchor drill arm of the embodiment of the present invention optimizes the position of the liquid distribution plate to make the pipe lengths required for the drill box to be located at the two extreme positions consistent, and to make the pipes as short as possible while meeting the working requirements of the drill arm. At the same time, a pipe combing plate is installed on the drill box to comb and align the pipes, so that the pipe interfaces derived from the drill box are oriented in the same direction, and the pipe interfaces of the pipe combing plate and the liquid distribution plate are highly consistent in the thickness direction of the drill arm, thereby avoiding the twisting of the pipes during the movement of the drill box, reducing the risk of the pipes being hung up, and improving the performance and safety of the drill arm.

[0008] In some embodiments, the primary skeleton includes a primary bottom plate, a primary top plate and a sliding portion connecting the two, the sliding portion includes a support plate, a slide rail fixing sleeve, a sliding column and a support oil cylinder, the bottom end of the support plate is connected to the primary bottom plate, the slide rail fixing sleeve is arranged at the top end of the support plate, the slide rail fixing sleeve has a first sliding hole, the sliding column slides through the first sliding hole, the end of the sliding column away from the primary bottom plate is connected to the primary top plate, the cylinder barrel of the support oil cylinder is connected to the primary bottom plate, and the piston rod of the support oil cylinder is connected to the primary top plate.

[0009] In some embodiments, a secondary skeleton is also included, and the secondary skeleton includes a secondary bottom plate, a secondary top plate, a first guide column and a second guide column, both ends of the first guide column and both ends of the second guide column are respectively connected to the secondary bottom plate and the secondary top plate, the drill box is arranged on the first guide column, and the drill box can slide between the secondary bottom plate and the secondary top plate, the slide rail fixing sleeve has a second sliding hole, the second guide column slides through the second sliding hole, and the secondary skeleton can slide between the primary bottom plate and the primary top plate.

[0010] In some embodiments, a secondary cylinder is also included, which includes a cylinder rod, a primary cylinder barrel and a secondary cylinder barrel, wherein both ends of the primary cylinder barrel are respectively connected to the secondary bottom plate and the secondary top plate, one end of the cylinder rod is slidably disposed in the primary cylinder barrel, and the other end of the cylinder rod is connected to the primary bottom plate, the secondary cylinder barrel is sleeved on the primary cylinder barrel, and the secondary cylinder barrel is connected to the drill box.

[0011] In some embodiments, a transmission assembly is provided on the secondary cylinder, and the transmission assembly includes bearings provided at both ends of the secondary cylinder, a chain wrapped around the bearings, and a chain fixing block connecting the chain to the secondary frame, and the drill box is connected to the chain.

[0012] An embodiment of the present invention further provides a pipe laying method for an anchor drill arm, and the pipe laying method is used for the anchor drill arm described in any one of the above embodiments.

[0013] The pipe laying method of the anchor drill arm according to the embodiment of the present invention comprises:

[0014] In the thickness direction of the primary skeleton, determine the distance d between the pipeline interface of the liquid distribution plate and the pipeline interface of the pipeline combing plate at any of the extreme positions;

[0015] The pipeline between the pipeline combing plate and the liquid distribution plate is a hydraulic pipeline, and the minimum bending radius r of the hydraulic pipeline is determined;

[0016] The length l0 of the hydraulic pipeline is given according to the relationship between r and d, and the final length l of the hydraulic pipeline is the sum of l0 and ε, where ε is the correction amount.

[0017] In some embodiments, when r<d / 2, the relationship is satisfied:

[0018]

[0019] In some embodiments, when r=d / 2, the relationship is satisfied:

[0020]

[0021] In some embodiments, when d / 2<r≤d, the relationship is satisfied:

[0022]

[0023] In some embodiments, when r>d, the relationship is satisfied:

[0024] BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic structural diagram of an anchor drill arm according to an embodiment of the present invention.

[0026] Figure 2 It is a schematic structural diagram of the unfolding of the anchor drill arm according to an embodiment of the present invention.

[0027] Figure 3 It is a schematic structural diagram of a primary skeleton of an embodiment of the present invention.

[0028] Figure 4 It is a schematic structural diagram of a slide rail fixing sleeve according to an embodiment of the present invention.

[0029] Figure 5 It is a schematic diagram of the structure of the secondary skeleton of an embodiment of the present invention.

[0030] Figure 6 It is a cross-sectional schematic diagram of an anchor drill arm according to an embodiment of the present invention.

[0031] Figure 7 It is a cross-sectional schematic diagram of the unfolded anchor drill arm according to an embodiment of the present invention.

[0032] Figure 8 It is a first length schematic diagram of the hydraulic pipeline of an embodiment of the present invention.

[0033] Fig. 9 Schematic diagram of the second length of the hydraulic pipeline according to the embodiment of the present invention.

[0034] Fig.10Schematic diagram of the third length of the hydraulic pipeline according to the embodiment of the present invention.

[0035] Fig.11 4 is a schematic diagram of the fourth length of the hydraulic pipeline according to an embodiment of the present invention.

[0036] Reference numerals:

[0037] 1-primary frame, 11-liquid distribution plate, 12-primary bottom plate, 13-primary top plate, 14-support plate, 15-slide rail fixing sleeve, 151-first slide hole, 152-second slide hole, 16-sliding column, 17-support oil cylinder,

[0038] 2-drill box, 21-pipeline combing plate, 201-first limit position, 202-second limit position,

[0039] 3-Hydraulic pipeline,

[0040] 4-secondary frame, 41-secondary bottom plate, 42-secondary top plate, 43-first guide column, 44-second guide column,

[0041] 5-secondary oil cylinder, 51-cylinder rod, 52-primary cylinder barrel, 53-secondary cylinder barrel, 531-bearing, 532-chain, 533-chain fixing block. DETAILED DESCRIPTION

[0042] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0043] The anchor drill arm according to the embodiment of the present invention will be described below with reference to the accompanying drawings.

[0044] like Figures 1 to 7 As shown, the anchor drill arm of the embodiment of the present invention includes: a primary frame 1 and a drill box 2.

[0045] A liquid distribution plate 11 is provided on the primary skeleton 1, and a drill box 2 is slidably provided on the primary skeleton 1 along the length direction of the primary skeleton 1. A pipeline combing plate 21 is provided on the drill box 2. The pipeline combing plate 21 and the liquid distribution plate 11 are connected via pipelines. The pipeline between the pipeline combing plate 21 and the liquid distribution plate 11 is a hydraulic pipeline 3. The pipeline interfaces of the pipeline combing plate 21 and the liquid distribution plate 11 have the same height in the thickness direction of the primary skeleton 1.

[0046] The anchor drill arm of the embodiment of the present invention is equipped with a pipeline combing plate 21 on the drill box 2 to comb and align the hydraulic pipeline 3, so that the pipeline interfaces derived from the drill box 2 are in the same direction, and the pipeline interfaces of the pipeline combing plate 21 and the liquid distribution plate 11 are highly consistent in the thickness direction of the drill arm, thereby avoiding twisting of the hydraulic pipeline 3 during the movement of the drill box 2, reducing the risk of the hydraulic pipeline 3 being disconnected, and improving the performance and safety of the drill arm.

[0047] The drill box 2 has two extreme positions on the primary frame 1, which are a first extreme position 201 and a second extreme position 202. The first extreme position 201 is when the drill box 2 slides to a position adjacent to the bottom end of the primary frame 1, and the second extreme position 202 is when the drill box 2 slides to a position adjacent to the top end of the primary frame 1.

[0048] Moreover, in the length direction of the primary skeleton 1, the distance between the pipeline interface of the pipeline combing plate 21 at two extreme positions is s, and the distance between the liquid distribution plate 11 and the pipeline interface of the pipeline combing plate 21 at any extreme position is s / 2.

[0049] The anchor drill arm of the embodiment of the present invention optimizes the position of the liquid distribution plate 11 so that the pipe lengths required for the drill box 2 to be located at two extreme positions are consistent, and the length of the hydraulic pipeline 3 is moderate while meeting the working requirements of the drill arm, thereby avoiding the problem of the hydraulic pipeline 3 being too long.

[0050] In some embodiments, Figures 1 to 4 As shown, the primary frame 1 includes a primary bottom plate 12 , a primary top plate 13 and a sliding portion connecting the two, and the sliding portion includes a support plate 14 , a slide rail fixing sleeve 15 , a sliding column 16 and a supporting cylinder 17 .

[0051] The bottom end of the support plate 14 is connected to the primary bottom plate 12, the slide rail fixing sleeve 15 is arranged at the top end of the support plate 14, the slide rail fixing sleeve 15 has a first sliding hole 151, the sliding column 16 slides through the first sliding hole 151, the end of the sliding column 16 away from the primary bottom plate 12 is connected to the primary top plate 13, the cylinder barrel of the support cylinder 17 is connected to the primary bottom plate 12, and the piston rod of the support cylinder 17 is connected to the primary top plate 13.

[0052] It is understandable that during the drilling operation, the primary roof 13 is used to contact the coal wall, provide stable support for the drill arm, and ensure the safety and efficiency of the drilling operation. When the height of the drill arm needs to be adjusted, the sliding column 16 can slide up and down in the slide rail fixing sleeve 15 by controlling the extension and contraction of the support cylinder 17, thereby changing the position of the primary roof 13.

[0053] In some embodiments, Figures 1 to 5As shown, the anchor drill arm also includes a secondary frame 4, which includes a secondary bottom plate 41, a secondary top plate 42, a first guide column 43 and a second guide column 44. The two ends of the first guide column 43 are respectively connected to the secondary bottom plate 41 and the secondary top plate 42, and the two ends of the second guide column 44 are respectively connected to the secondary bottom plate 41 and the secondary top plate 42.

[0054] The drill box 2 is slidably mounted on the first guide column 43 through the drill box 2 fixing sleeve, and the drill box 2 slides axially between the secondary bottom plate 41 and the secondary top plate 42. The slide rail fixing sleeve 15 has a second slide hole 152, and the second guide column 44 slides through the second slide hole 152, and the secondary frame 4 slides axially between the primary bottom plate 12 and the primary top plate 13.

[0055] It can be understood that the primary frame 1, the secondary frame 4 and the drill box 2 all move axially to ensure the linearity and stability of the drilling action and avoid unexpected movement, thereby improving the accuracy of drilling and the installation quality of the anchor rod.

[0056] In some embodiments, Figure 6 and Figure 7 As shown, the anchor drill arm further includes a secondary oil cylinder 5 , and the secondary oil cylinder 5 includes a cylinder rod 51 , a primary cylinder barrel 52 and a secondary cylinder barrel 53 .

[0057] The two ends of the primary cylinder 52 are respectively connected to the secondary bottom plate 41 and the secondary top plate 42. One end of the cylinder rod 51 is slidably disposed in the primary cylinder 52. The other end of the cylinder rod 51 is connected to the primary bottom plate 12. The secondary cylinder 53 is sleeved on the primary cylinder 52, and the secondary cylinder 53 is connected to the drill box 2.

[0058] It can be understood that the oil cylinder rod 51 extends so that the primary cylinder 52 drives the secondary frame 4 to slide, and the secondary cylinder 53 slides on the primary cylinder 52 to drive the drill box 2 to slide. Specifically, the primary bottom plate 12 has an oil inlet and return channel connected to the secondary oil cylinder 5, which controls the forward and backward movement of the secondary oil cylinder 5 respectively.

[0059] Alternatively, if Figure 6 and Figure 7 As shown, a transmission assembly is provided on the secondary cylinder 53, and the transmission assembly includes bearings 531 arranged at both ends of the secondary cylinder 53, a chain 532 wrapped around the bearing 531, and a chain fixing block 533 connecting the chain 532 to the secondary frame 4, and the drill box 2 is connected to the chain 532.

[0060] It is understandable that during the sliding of the secondary cylinder 53 , since the chain 532 is connected to the secondary frame 4 through the chain fixing block 533 , the chain 532 is driven to rotate around the bearing 531 , thereby driving the drill box 2 to slide on the secondary frame 4 .

[0061] Since the height of the borehole may vary from the ground to a higher rock surface during construction of underground engineering, tunnel excavation or slope stabilization, the drill box 2 can be moved from the bottom to the top of the drill arm, thereby ensuring effective drilling operations at different heights.

[0062] The pipe laying method of the anchor drill arm according to an embodiment of the present invention will be described below in conjunction with the accompanying drawings. The pipe laying method is used for the anchor drill arm in any of the above embodiments.

[0063] The pipe laying method of the anchor drill arm according to the embodiment of the present invention comprises:

[0064] In the thickness direction of the primary skeleton 1, the distance d between the pipeline interface of the liquid distribution plate 11 and the pipeline interface of the pipeline combing plate 21 at any extreme position is determined.

[0065] The pipeline between the pipeline combing plate 21 and the liquid distribution plate 11 is the hydraulic pipeline 3, and the minimum bending radius r of the hydraulic pipeline 3 is determined.

[0066] The length l0 of the hydraulic pipeline 3 is given according to the relationship between r and d, and the final length l of the hydraulic pipeline 3 is the sum of l0 and ε, where ε is the correction amount.

[0067] Alternatively, if Figure 8 As shown, when r<d / 2, the relationship is satisfied:

[0068]

[0069] Alternatively, if Fig. 9 As shown, when r = d / 2, the relationship is satisfied:

[0070]

[0071] Alternatively, if Fig.10 As shown, when d / 2<r≤d, the relationship is satisfied:

[0072]

[0073] Alternatively, if Fig.11 As shown, when r>d, the relationship is satisfied:

[0074]

[0075] Therefore, according to the minimum bending radius of the hydraulic pipeline 3 and the relative position of the liquid distribution plate 11 and the pipeline combing plate 21, a design method for the shortest length of the hydraulic pipeline 3 is proposed. Under the premise of ensuring the reliability of the hydraulic pipeline 3, the redundant length of the pipeline is reduced, the problem of hanging pipes can be effectively solved, the pressure loss and energy consumption of the hydraulic system can be effectively reduced, the working efficiency of the hydraulic system is improved, and the service life of the pipeline is extended.

[0076] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0077] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0078] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0079] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0080] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0081] Although the above embodiments have been shown and described, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.

Claims

1. An anchor drill arm, characterized in that: include: A primary frame and a drill box, wherein a liquid distribution plate is provided on the primary frame, the drill box is slidably arranged on the primary frame along the length direction of the primary frame, and a pipeline combing plate is provided on the drill box, the pipeline combing plate and the liquid distribution plate are connected via pipelines, and the pipeline interface of the pipeline combing plate and the pipeline interface of the liquid distribution plate are at the same height in the thickness direction of the primary frame; The drill box has two extreme positions on the primary frame, one of which is when the drill box slides to a position adjacent to the bottom end of the primary frame, and the other is when the drill box slides to a position adjacent to the top end of the primary frame. In the length direction of the primary frame, the distance between the pipeline interface of the pipeline combing plate at the two extreme positions is s, and the distance between the pipeline interface of the liquid distribution plate and the pipeline interface of the pipeline combing plate at any of the extreme positions is s / 2.

2. The anchor drill arm according to claim 1, characterized in that: The primary skeleton includes a primary bottom plate, a primary top plate and a sliding portion connecting the two, the sliding portion includes a support plate, a slide rail fixing sleeve, a sliding column and a support oil cylinder, the bottom end of the support plate is connected to the primary bottom plate, the slide rail fixing sleeve is arranged at the top end of the support plate, the slide rail fixing sleeve has a first sliding hole, the sliding column slides through the first sliding hole, the end of the sliding column away from the primary bottom plate is connected to the primary top plate, the cylinder barrel of the support oil cylinder is connected to the primary bottom plate, and the piston rod of the support oil cylinder is connected to the primary top plate.

3. The anchor drill arm according to claim 2, characterized in that: It also includes a secondary skeleton, which includes a secondary bottom plate, a secondary top plate, a first guide column and a second guide column. Both ends of the first guide column and both ends of the second guide column are respectively connected to the secondary bottom plate and the secondary top plate. The drill box is arranged on the first guide column. The drill box can slide between the secondary bottom plate and the secondary top plate. The slide rail fixing sleeve has a second sliding hole. The second guide column slides through the second sliding hole. The secondary skeleton can slide between the primary bottom plate and the primary top plate.

4. The anchor drill arm according to claim 3, characterized in that: It also includes a secondary oil cylinder, which includes a cylinder rod, a primary cylinder barrel and a secondary cylinder barrel. The two ends of the primary cylinder barrel are respectively connected to the secondary bottom plate and the secondary top plate. One end of the cylinder rod is slidably arranged in the primary cylinder barrel, and the other end of the cylinder rod is connected to the primary bottom plate. The secondary cylinder barrel is mounted on the primary cylinder barrel, and the secondary cylinder barrel is connected to the drill box.

5. The anchor drill arm according to claim 4, characterized in that: The secondary cylinder is provided with a transmission assembly, which includes bearings arranged at both ends of the secondary cylinder, a chain wrapped around the bearings, and a chain fixing block connecting the chain to the secondary frame, and the drill box is connected to the chain.

6. A method for laying pipes for an anchor drill arm, characterized in that: The pipe laying method is used for the anchor drill arm according to any one of claims 1 to 5, and the pipe laying method comprises: In the thickness direction of the primary skeleton, determine the distance d between the pipeline interface of the liquid distribution plate and the pipeline interface of the pipeline combing plate at any of the extreme positions; The pipeline between the pipeline combing plate and the liquid distribution plate is a hydraulic pipeline, and the minimum bending radius r of the hydraulic pipeline is determined; The length l0 of the hydraulic pipeline is given according to the relationship between r and d, and the final length l of the hydraulic pipeline is the sum of l0 and ε, where ε is the correction amount.

7. The method for laying pipes for an anchor drill arm according to claim 6, characterized in that: When r<d / 2, the relationship is satisfied:

8. The method for laying pipes for an anchor drill arm according to claim 6, characterized in that: When r = d / 2, the relationship is satisfied:

9. The method for laying pipes for an anchor drill arm according to claim 6, characterized in that: When d / 2<r≤d, the relationship is satisfied:

10. The method for laying pipes for an anchor drill arm according to claim 6, characterized in that: When r>d, the relationship is satisfied:

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