Anchor rod construction auxiliary device and anchor rod drilling rig

Abstract

The anchor rod construction auxiliary device comprises a clamp, a clamp oil cylinder and a liquid distribution plate, the clamp oil cylinder is connected with the clamp, a clamp body and the clamp oil cylinder are installed on the liquid distribution plate, the liquid distribution plate is provided with a first rodless cavity flow channel and a first rod cavity flow channel, and the first rodless cavity flow channel is communicated with the first rodless cavity flow channel. A hydraulic control one-way valve is arranged in the first rod cavity flow channel, oil is supplied to the rod cavity through the first rod cavity flow channel so that the clamp can be in a clamping state, the hydraulic control one-way valve limits backflow of hydraulic oil in the rod cavity, and oil is supplied to the rodless cavity through the first rodless cavity flow channel so that the clamp can be in a loosening state. And part of hydraulic oil in the first rodless cavity flow channel flows to a pilot oil way of the hydraulic control one-way valve, so that the hydraulic control one-way valve is released from limitation. The hydraulic control one-way valve is arranged, so that the clamp has a self-locking function, it is ensured that when the clamp clamps the anchor rod and oil supply is stopped, the clamp can stably clamp the anchor rod all the time, and the effectiveness of construction operation is improved.

Description

Technical Field

[0001] The invention relates to the technical field of mining machinery, and in particular to an anchor construction auxiliary device and an anchor drilling frame. Background Art

[0002] Anchor drilling rigs are indispensable equipment in mines, tunnels and underground projects. They are mainly used to install and fix anchors to ensure the stability and safety of the project. In anchor drilling rigs, clamps are usually installed on the drilling frame of the drilling rig, and their opening and closing movements are controlled by hydraulic or mechanical means. The main function of the clamp is to firmly clamp the anchor during the drilling process to prevent the anchor from sliding or deflecting during high-speed rotation and advancement.

[0003] In the related art, when the clamp is closed and the oil supply to the clamp cylinder stops, the clamp is in an unstable state that can be moved by external force. At this time, during the operation of the drilling rig, due to the lack of continuous pressure maintenance, the clamp is easily affected by external vibration and force, resulting in insufficient clamping force and failure to effectively clamp the anchor rod, thus affecting the normal operation of the drilling rig. Summary of the invention

[0004] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] To this end, an embodiment of the present invention provides an anchor construction auxiliary device to solve the problem that the clamping force is easily affected.

[0006] The anchor bolt construction auxiliary device of the embodiment of the present invention comprises a clamp, a clamp oil cylinder and a liquid distribution plate, wherein the clamp oil cylinder is connected to the clamp, the clamp oil cylinder is used to drive the clamp to clamp and release, the clamp oil cylinder has a rodless chamber and a rod chamber, the clamp body and the clamp oil cylinder are installed on the liquid distribution plate, the liquid distribution plate has a first rodless chamber flow channel connected to the rodless chamber and a first rod chamber flow channel connected to the rod chamber, a hydraulically controlled one-way valve is arranged in the first rod chamber flow channel, and the first rodless chamber flow channel is also connected to the pilot oil circuit of the hydraulically controlled one-way valve;

[0007] Supplying oil to the rod chamber through the first rod chamber flow channel to keep the clamp in a clamped state, and the hydraulically controlled one-way valve restricts the hydraulic oil in the rod chamber from flowing back;

[0008] Oil is supplied to the rodless chamber through the first rodless chamber flow channel to put the clamp in a loosened state, and part of the hydraulic oil in the first rodless chamber flow channel flows to the pilot oil circuit of the hydraulically controlled one-way valve to release the restriction of the hydraulically controlled one-way valve.

[0009] The anchor construction auxiliary device of the embodiment of the present invention is provided with a hydraulically controlled one-way valve so that the clamp has a self-locking function, ensuring that when the clamp clamps the anchor and stops supplying oil, the clamp can always stably clamp the anchor, thereby improving the effectiveness of the construction operation.

[0010] In some embodiments, the hydraulically controlled one-way valve has port a, port b and port c. The hydraulic oil in the first rod chamber flow channel flows into from port b of the hydraulically controlled one-way valve and opens the hydraulically controlled one-way valve to supply oil to the rod chamber through port a of the hydraulically controlled one-way valve. Part of the hydraulic oil in the first rodless chamber flow channel flows into from port c of the hydraulically controlled one-way valve and opens the hydraulically controlled one-way valve to allow the hydraulic oil in the rod chamber to flow back through ports a and b of the hydraulically controlled one-way valve in turn.

[0011] In some embodiments, the clamp cylinder has a second rodless chamber flow channel connected to the rodless chamber and a second rod chamber flow channel connected to the rod chamber, the second rodless chamber flow channel is connected to the first rodless chamber flow channel, and the second rod chamber flow channel is connected to the first rod chamber flow channel.

[0012] In some embodiments, the clamp cylinder has a supporting portion, and corresponding first mounting holes are provided on the supporting portion and the liquid distribution plate, and a first connecting member is assembled in the first mounting hole to connect the supporting portion with the liquid distribution plate.

[0013] In some embodiments, a guard plate is further included, wherein the guard plate is mounted on the liquid distribution plate, and the clamp cylinder is located between the guard plate and the liquid distribution plate.

[0014] In some embodiments, corresponding second mounting holes are provided on the guard plate and the liquid distribution plate, and a second connecting member is installed in the second mounting hole to connect the guard plate with the liquid distribution plate.

[0015] In some embodiments, the liquid distribution plate has a first end face and a second end face arranged opposite to each other along its thickness direction, the clamp, the clamp cylinder and the guard plate are installed on the first end face of the liquid distribution plate, and a rodless cavity oil pipe interface and a rod cavity oil pipe interface are provided on the second end face of the liquid distribution plate, the rodless cavity oil pipe interface is connected to the first rodless cavity flow channel, and the rod cavity oil pipe interface is connected to the first rod cavity flow channel.

[0016] In some embodiments, both the rodless cavity oil pipe interface and the rod cavity oil pipe interface are provided with an annular sealing groove, and a sealing ring is provided in the sealing groove.

[0017] An embodiment of the present invention further provides an anchor drilling stand.

[0018] The anchor drill frame of the embodiment of the present invention comprises:

[0019] A drill frame body, the drill frame body comprising a primary frame and a secondary frame, the primary frame being slidable along its length direction, and the secondary frame being slidably arranged on the primary frame along the length direction of the primary frame;

[0020] A clamp assembly, wherein the clamp assembly includes a rod cavity oil pipe, a rodless cavity oil pipe and the anchor construction auxiliary device described in any one of the above embodiments, wherein the anchor construction auxiliary device is installed on the secondary skeleton, the rod cavity oil pipe is connected to the rod cavity of the anchor construction auxiliary device, and the rodless cavity oil pipe is connected to the rodless cavity of the anchor construction auxiliary device.

[0021] In some embodiments, the oil pipe with a rod cavity and the oil pipe without a rod cavity both include an inner tube and an outer tube that are slidable relative to each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of an anchor construction auxiliary device according to an embodiment of the present invention.

[0023] Figure 2 1 is a first schematic diagram of the internal flow channel of the liquid distribution plate according to an embodiment of the present invention.

[0024] Figure 3 4 is a second schematic diagram of the internal flow channel of the liquid distribution plate according to an embodiment of the present invention.

[0025] Figure 4 3 is a third schematic diagram of the internal flow channel of the liquid distribution plate according to an embodiment of the present invention.

[0026] Figure 5 Schematic diagram of a hydraulically controlled one-way valve according to an embodiment of the present invention.

[0027] Figure 6 It is a schematic diagram of the hydraulic principle of the clamp cylinder according to an embodiment of the present invention.

[0028] Figure 7 Schematic diagram of the internal flow channel of the clamp cylinder according to an embodiment of the present invention.

[0029] Figure 8 Schematic diagram of the second end surface of the liquid distribution plate according to an embodiment of the present invention.

[0030] Fig. 9 Schematic diagram of the structure of the guard plate of the embodiment of the present invention.

[0031] Fig.10 Schematic diagram of the initial state of the anchor drilling frame according to the embodiment of the present invention.

[0032] Fig.11 Schematic diagram of the unfolded state of the anchor drilling rack according to an embodiment of the present invention.

[0033] Reference numerals:

[0034] 1-clamp, 2-clamp cylinder, 201-rodless chamber, 202-rod chamber, 203-second rodless chamber flow channel, 204-second rod chamber flow channel, 205-support part, 3-liquid distribution plate, 301-first rodless chamber flow channel, 302-first rod chamber flow channel, 303-hydraulic control one-way valve, 3031-pilot oil circuit, 304-first end face, 305-second end face, 306-rodless chamber oil pipe interface, 307-rod chamber oil pipe interface, 4-guard plate, 5-primary skeleton, 6-secondary skeleton, 7-clamp oil pipe, 701-inner tube, 702-outer tube. DETAILED DESCRIPTION

[0035] 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.

[0036] The anchor construction auxiliary device according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0037] like Figures 1 to 8 As shown, the anchor bolt construction auxiliary device according to the embodiment of the present invention comprises a clamp 1 , a clamp cylinder 2 and a liquid distribution plate 3 .

[0038] The clamp oil cylinder 2 is connected to the clamp 1, and the clamp oil cylinder 2 is used to drive the clamp 1 to clamp and release. The clamp oil cylinder 2 has a rodless chamber 201 and a rod chamber 202. The clamp 1 body and the clamp oil cylinder 2 are installed on the liquid distribution plate 3. The liquid distribution plate 3 has a first rodless chamber flow channel 301 connected to the rodless chamber 201 and a first rod chamber flow channel 302 connected to the rod chamber 202. A hydraulically controlled one-way valve 303 is provided in the first rodless chamber flow channel 301, and the first rodless chamber flow channel 301 is also connected to the pilot oil circuit 3031 of the hydraulically controlled one-way valve 303.

[0039] Oil is supplied to the rod chamber 202 through the first rod chamber flow channel 302 to clamp the clamp 1. The oil supply is stopped after the clamp 1 is clamped. At this time, the hydraulically controlled one-way valve 303 is in a closed state. Under the limiting action of the hydraulically controlled one-way valve 303, the hydraulic oil in the rod chamber 202 will not flow back.

[0040] Oil is supplied to the rodless chamber 201 through the first rodless chamber flow channel 301 to loosen the clamp 1. At this time, part of the hydraulic oil in the first rodless chamber flow channel 301 flows to the pilot oil circuit 3031 of the hydraulically controlled one-way valve 303, thereby opening the hydraulically controlled one-way valve 303 to release the restriction of the hydraulically controlled one-way valve 303 and allow the hydraulic oil in the rod chamber 202 to flow back and be discharged.

[0041] Therefore, the anchor construction auxiliary device of the embodiment of the present invention, by setting the hydraulically controlled one-way valve 303, enables the clamp 1 to have a self-locking function, ensuring that when the clamp 1 clamps the anchor and stops supplying oil, the clamp 1 can always stably clamp the anchor, thereby improving the effectiveness of the construction operation.

[0042] In some embodiments, Figures 2 to 6 As shown, the hydraulically controlled one-way valve 303 has a port a, a port b and a port c.

[0043] When oil is supplied to the rod chamber 202 of the clamp oil cylinder 2, the hydraulic oil in the first rod chamber flow channel 302 flows into the rod chamber 202 from the port b of the hydraulic control check valve 303 and opens the hydraulic control check valve 303, and then supplies oil to the rod chamber 202 through the port a of the hydraulic control check valve 303. After the oil supply stops, the hydraulic control check valve 303 is closed, thereby ensuring that the hydraulic oil in the rod chamber 202 does not flow back, so as to lock the clamp 1.

[0044] When oil is supplied to the rodless chamber 201 of the clamp cylinder 2, part of the hydraulic oil in the first rodless chamber flow channel 301 flows to the c port of the hydraulically controlled one-way valve 303, so that the c port of the hydraulically controlled one-way valve 303 is in a high-pressure state, and the hydraulically controlled one-way valve 303 is opened to allow the hydraulic oil in the rod chamber 202 to flow from the a port of the hydraulically controlled one-way valve 303 to the b port, thereby realizing the reflux of the hydraulic oil in the rod chamber 202.

[0045] In some embodiments, Figure 7 As shown, the clamp cylinder 2 has a second rodless chamber flow channel 203 connected to the rodless chamber 201 and a second rod chamber flow channel 204 connected to the rod chamber 202. The second rodless chamber flow channel 203 is connected to the first rodless chamber flow channel 301, and the second rod chamber flow channel 204 is connected to the first rod chamber flow channel 302.

[0046] It can be understood that the first rodless cavity flow channel 301 and the second rodless cavity flow channel 203 together constitute the oil supply flow channel of the rodless cavity 201 of the anchor construction auxiliary device of the embodiment of the present invention, and the first rod cavity flow channel 302 and the second rod cavity flow channel 204 together constitute the oil supply flow channel of the rod cavity 202 of the anchor construction auxiliary device of the embodiment of the present invention, thereby improving the integrity of the device.

[0047] Alternatively, if Figure 1 and Figure 7 As shown, the clamp oil cylinder 2 has support parts 205 located on both sides thereof, and corresponding first mounting holes are provided on the support parts 205 and the liquid distribution plate 3, and first connecting members are installed in the first mounting holes to detachably connect the support parts 205 to the liquid distribution plate 3. For example, the first mounting holes are screw holes, and the first connecting members are bolts, which ensure that the clamp oil cylinder 2 is tightly pressed on the liquid distribution plate 3.

[0048] Furthermore, if Fig. 9As shown, the anchor construction auxiliary device of the embodiment of the invention also includes a guard plate 4, which is installed on the liquid distribution plate 3, and the clamp cylinder 2 is located between the guard plate 4 and the liquid distribution plate 3, so as to protect the clamp cylinder 2.

[0049] Alternatively, if Fig. 9 As shown, corresponding second mounting holes are provided on the guard plate 4 and the liquid distribution plate 3, and second connecting members are installed in the second mounting holes, so that the guard plate 4 is detachably connected to the liquid distribution plate 3. Similarly, for example, the second mounting hole is a screw hole, and the second connecting member is a bolt, so as to ensure that the guard plate 4 is tightly pressed on the liquid distribution plate 3.

[0050] In some embodiments, Figures 1 to 9 As shown, the liquid distribution plate 3 has a first end surface 304 and a second end surface 305 which are arranged opposite to each other along the thickness direction thereof.

[0051] The clamp 1, the clamp oil cylinder 2 and the guard plate 4 are mounted on the first end surface 304 of the liquid distribution plate 3. A rodless cavity oil pipe interface 306 and a rod cavity oil pipe interface 307 are provided on the second end surface 305 of the liquid distribution plate 3. The rodless cavity oil pipe interface 306 is connected to the first rodless cavity flow channel 301, and the rod cavity oil pipe interface 307 is connected to the first rod cavity flow channel 302, so as to facilitate external oil pipe connection.

[0052] Furthermore, both the rodless cavity oil pipe interface 306 and the rod cavity oil pipe interface 307 are provided with an annular sealing groove, and a sealing ring is provided in the sealing groove, so as to ensure the sealing performance of the external oil pipe.

[0053] The anchor drill stand according to the embodiment of the present invention will be described below with reference to the accompanying drawings.

[0054] like Fig. 9 and Fig.10 As shown, the anchor drill frame according to the embodiment of the present invention comprises a drill frame body and a clamp 1 assembly.

[0055] The drilling frame body comprises a primary frame 5 and a secondary frame 6. The primary frame 5 is slidable along its length direction, and the secondary frame 6 is slidably arranged on the primary frame 5 along its length direction.

[0056] The clamp 1 assembly includes two clamp oil pipes 7 and an anchor construction auxiliary device in any of the above embodiments. The clamp oil pipes 7 are respectively a rod cavity oil pipe and a rodless cavity oil pipe, the anchor construction auxiliary device is installed on the secondary frame 6, the end of the rod cavity oil pipe is installed in the rod cavity oil pipe interface 307 of the anchor construction auxiliary device, and the end of the rodless cavity oil pipe is installed in the rodless cavity oil pipe interface 306 of the anchor construction auxiliary device.

[0057] Optionally, both the oil pipe with a rod cavity and the oil pipe without a rod cavity include an inner tube 701 and an outer tube 702 that can slide relative to each other, so that when the clamp cylinder 2 moves along with the secondary skeleton 6, it drives the outer tube 702 and the inner tube 701 to slide relative to each other.

[0058] It can be understood that after the primary skeleton 5 is unfolded, during the movement of the secondary skeleton 6 on the primary skeleton 5, the secondary skeleton 6 drives the clamp cylinder 2 and the clamp 1 to move, and at the same time drives the clamp oil pipe 7 to retract and retract, thereby realizing normal oil supply to the clamp cylinder 2 through the retractable clamp oil pipe 7.

[0059] Therefore, the anchor drill rack of the embodiment of the present invention adopts the clamp oil pipe 7 in the form of a telescopic sleeve structure, which can move synchronously with the secondary skeleton 6, thereby avoiding the problem of the external oil pipe being easily hung up, and improving the reliability and safety of the device operation.

[0060] 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.

[0061] 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.

[0062] 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.

[0063] 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.

[0064] 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.

[0065] 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 construction auxiliary device, characterized in that: It comprises a clamp, a clamp oil cylinder and a liquid distribution plate, wherein the clamp oil cylinder is connected to the clamp, the clamp oil cylinder is used to drive the clamp to clamp and release, the clamp oil cylinder has a rodless chamber and a rod chamber, the clamp body and the clamp oil cylinder are mounted on the liquid distribution plate, the liquid distribution plate has a first rodless chamber flow channel connected to the rodless chamber and a first rod chamber flow channel connected to the rod chamber, a hydraulically controlled one-way valve is arranged in the first rod chamber flow channel, and the first rodless chamber flow channel is also connected to the pilot oil circuit of the hydraulically controlled one-way valve; Supplying oil to the rod chamber through the first rod chamber flow channel to keep the clamp in a clamped state, and the hydraulically controlled one-way valve restricts the hydraulic oil in the rod chamber from flowing back; Oil is supplied to the rodless chamber through the first rodless chamber flow channel to put the clamp in a loosened state, and part of the hydraulic oil in the first rodless chamber flow channel flows to the pilot oil circuit of the hydraulically controlled one-way valve to release the restriction of the hydraulically controlled one-way valve.

2. The anchor construction auxiliary device according to claim 1, characterized in that: The hydraulically controlled one-way valve has ports a, b and c. The hydraulic oil in the first rod chamber flow channel flows into from port b of the hydraulically controlled one-way valve and opens the hydraulically controlled one-way valve to supply oil to the rod chamber through port a of the hydraulically controlled one-way valve. Part of the hydraulic oil in the first rodless chamber flow channel flows into from port c of the hydraulically controlled one-way valve and opens the hydraulically controlled one-way valve to allow the hydraulic oil in the rod chamber to flow back through ports a and b of the hydraulically controlled one-way valve in turn.

3. The anchor construction auxiliary device according to claim 1, characterized in that: The clamp cylinder has a second rodless chamber flow channel connected to the rodless chamber and a second rod chamber flow channel connected to the rod chamber, the second rodless chamber flow channel is connected to the first rodless chamber flow channel, and the second rod chamber flow channel is connected to the first rod chamber flow channel.

4. The anchor construction auxiliary device according to any one of claims 1 to 3, characterized in that: The clamp oil cylinder has a supporting portion, and corresponding first mounting holes are provided on the supporting portion and the liquid distribution plate, and a first connecting member is assembled in the first mounting hole to connect the supporting portion with the liquid distribution plate.

5. The anchor construction auxiliary device according to claim 4, characterized in that: It also includes a guard plate, which is installed on the liquid distribution plate, and the clamp cylinder is located between the guard plate and the liquid distribution plate.

6. The anchor construction auxiliary device according to claim 5, characterized in that: The guard plate and the liquid distribution plate are provided with corresponding second mounting holes, and a second connecting member is installed in the second mounting hole to connect the guard plate with the liquid distribution plate.

7. The anchor construction auxiliary device according to claim 6, characterized in that: The liquid distribution plate has a first end face and a second end face arranged opposite to each other along its thickness direction, the clamp, the clamp cylinder and the guard plate are installed on the first end face of the liquid distribution plate, and a rodless cavity oil pipe interface and a rod cavity oil pipe interface are provided on the second end face of the liquid distribution plate, the rodless cavity oil pipe interface is connected to the first rodless cavity flow channel, and the rod cavity oil pipe interface is connected to the first rod cavity flow channel.

8. The anchor construction auxiliary device according to claim 7, characterized in that: An annular sealing groove is provided in the rodless cavity oil pipe interface and the rod cavity oil pipe interface, and a sealing ring is provided in the sealing groove.

9. An anchor drilling stand, characterized in that: include: A drill frame body, the drill frame body comprising a primary frame and a secondary frame, the primary frame being slidable along its length direction, and the secondary frame being slidably arranged on the primary frame along the length direction of the primary frame; A clamp assembly, the clamp assembly comprising a rod cavity oil pipe, a rodless cavity oil pipe and an anchor construction auxiliary device according to any one of claims 1 to 8, the anchor construction auxiliary device being mounted on the secondary skeleton, the rod cavity oil pipe being connected to the rod cavity of the anchor construction auxiliary device, and the rodless cavity oil pipe being connected to the rodless cavity of the anchor construction auxiliary device.

10. The anchor drilling stand according to claim 9, characterized in that: The oil pipe with a rod cavity and the oil pipe without a rod cavity both include an inner tube and an outer tube which are relatively slidable.

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