A feeding and discharging mechanism of a power catwalk and a power catwalk thereof

Abstract

The present invention discloses a feeding and discharging mechanism of a power catwalk and a power catwalk thereof, and belongs to the technical field of oil and gas drilling and production equipment. A feeding and discharging mechanism of a power catwalk of the present invention comprises two sets of synchronous pull rod assemblies arranged in parallel; each set of synchronous pull rod assemblies comprises a driving device and a plurality of push plate units capable of lifting and lowering motion, adjacent push plate units are connected by pull rods, and the pull rods can be driven by the driving device to perform reciprocating linear motion, and the push plate units can be linked to perform synchronous lifting and lowering motion; the push plate units of the two sets of synchronous pull rod assemblies correspond to each other to form a plurality of pairs of push plate units; the top of each pair of push plate units is commonly connected with a flap to form a group of flap assembly, and under the action of the lifting and lowering motion of the push plate unit, the flap can perform flipping motion. The feeding and discharging mechanism of the present invention can make all the flaps flip synchronously to any side of the two sides of the feeding and discharging mechanism as required, and can be used to flip drilling tools, which is stable and reliable with high synchronization.

Description

Technical Field

[0001] The invention relates to a material inlet and outlet mechanism of a power catwalk and the power catwalk thereof, belonging to the technical field of oil and gas drilling equipment. Background Art

[0002] The power catwalk is a conveying equipment used in the technical field of oil and gas drilling and production equipment. It can convey the drilling tools on the racks (legs) on both sides of the catwalk body to the drilling floor, and can also convey the drilling tools on the drilling floor to be arranged on the racks (legs) on both sides of the catwalk body; such as Chinese patent CN201520866530.4, a power catwalk; Chinese patent CN201420525189.1, a cylinder-lifting land power catwalk; Chinese patent CN201420660266.4, a rack and pinion drilling rig power catwalk.

[0003] The feeding and discharging mechanism of the power catwalk is used to flip the drilling tools from the racks on both sides of the catwalk body to the V-shaped drilling tool support beam in the middle of the catwalk body; or, it is used to flip the drilling tools on the V-shaped drilling tool support beam in the middle of the catwalk body to the racks on both sides. Through the action of the feeding and discharging mechanism of the power catwalk, the power catwalk can further transport the drilling tools to the drilling table; or, further arrange the drilling tools on the racks on both sides of the catwalk body.

[0004] The V-shaped drill tool support beam and the base (or rack) of the power catwalk are usually equipped with a feed-in and feed-out mechanism. The feed-in and feed-out mechanism installed on the V-shaped drill tool support beam is hereinafter referred to as the first feed-in and feed-out mechanism; the feed-in and feed-out mechanism installed on the base (or rack) on both sides of the V-shaped drill tool support beam is hereinafter referred to as the second feed-in and feed-out mechanism. When it is necessary to flip the drill tool on the rack to the V-shaped drill tool support beam, the second feed-in and feed-out mechanism can be used to flip the drill tool to the V-shaped drill tool support beam; when it is necessary to flip the drill tool on the V-shaped drill tool support beam to the rack, the first feed-in and feed-out mechanism is first used to flip the drill tool to the second feed-in and feed-out mechanism, and then the second feed-in and feed-out mechanism is used to flip the drill tool to the rack.

[0005] There are many structural forms of the feeding and discharging mechanism of the power catwalk. The common feeding and discharging mechanism is composed of 2-3 groups of pushing pipe mechanisms. The action of the feeding and discharging mechanism requires the synchronous action of each group of pushing pipe mechanisms, and each group of pushing pipe mechanisms is driven by a separate actuator. A control system is required to control the synchronous action of the actuator. The structure of this feeding and discharging mechanism is relatively complex, and the synchronization is not ideal. Summary of the invention

[0006] The object of the present invention is to provide a feeding and discharging mechanism of a power catwalk and a power catwalk thereof in view of the above-mentioned problems. The feeding and discharging mechanism of the present invention has a relatively simple structure and higher stability and synchronization.

[0007] The technical solution adopted by the present invention is as follows:

[0008] A feeding and discharging mechanism of a power catwalk comprises two sets of synchronous pull rod assemblies arranged in parallel; each set of synchronous pull rod assemblies comprises a driving device and a plurality of push plate units capable of lifting and lowering motions, adjacent push plate units are connected by pull rods, and the driving device can drive the pull rods to perform reciprocating linear motions and link the push plate units to perform synchronous lifting and lowering motions;

[0009] The push plate units of the two sets of synchronous pull rod assemblies correspond to each other to form multiple pairs of push plate units; the tops of each pair of push plate units are commonly connected with a flap to form a set of flap components, and under the action of the lifting and lowering movement of the push plate units, the flap can be flipped.

[0010] When the feed-in and feed-out mechanism of the power catwalk of the present invention is adopted, since in each set of synchronous tie rod assemblies, the driving device can drive the tie rod to make reciprocating linear motion, and at the same time, the tie rod links the push plate unit to make synchronous lifting motion, the push plate unit connected thereto can make synchronous lifting motion through the action of the tie rod; at the same time, in each set of flap assembly, under the action of the lifting motion of the push plate unit, the flap can make a flipping motion. For the convenience of description, the two sets of synchronous tie rod assemblies are respectively referred to as the first set of synchronous tie rod assemblies and the second set of synchronous tie rod assemblies; in the initial state, the flap is in a low position, and the tie rod of the driving device of the first set of synchronous tie rod assembly makes a linear motion, while the driving device of the second set of synchronous tie rod assembly does not work; at this time, the push plate unit of the first set of synchronous tie rod assembly makes a synchronous lifting motion, so that the flap of each set of flap assembly will be synchronously flipped to one side of the feed-in and feed-out mechanism. Then, the tie rod is driven by the driving device of the first set of synchronous tie rod assembly to make a reverse linear motion, and the feed-in and feed-out mechanism can be restored to the initial state. Similarly, when the driving device of the first set of synchronous pull rod assemblies is not working and the driving device of the second set of synchronous pull rod assemblies drives the pull rods to reciprocate, the flaps can also be synchronously flipped to the other side of the feeding and discharging mechanism. The above-mentioned action process can make all the flaps synchronously flip to any side of the two sides of the feeding and discharging mechanism as required, which can be used to flip the drilling tools; the feeding and discharging mechanism of the power catwalk of the present invention is simpler in structure, more stable and reliable, and has higher synchronization than the prior art push pipe mechanism.

[0011] Optionally, the flap is in the shape of a flat plate or a V-shaped plate. When the flap is in the shape of a flat plate, the material feeding and discharging mechanism of the present invention can be assembled on the base of the power catwalk, and can be used to synchronously flip out the drilling tools thereon. When the flap is in the shape of a V-shaped plate, the material feeding and discharging mechanism of the present invention can be assembled on the V-shaped drilling tool support beam of the power catwalk, and can be used to synchronously flip out the drilling tools thereon.

[0012] Furthermore, in each set of flap assemblies, the flap is hinged to one of the push plate units and slidably connected to the other push plate unit. This can achieve the purpose of flipping the flap when any push plate unit performs a lifting motion. Of course, it is also possible that the flap is slidably connected to both push plate units, but when this design is adopted, the flap has a large degree of freedom, the structure is not stable enough, and the flap is easy to move. If the flap is hinged to both push plate units, then the flap has a small degree of freedom (equal to 0), and it is difficult to achieve the flipping of the flap.

[0013] Further, each push plate unit includes a push rod 1, a push rod 2, a push plate and a base; wherein the middle portion of the push rod 1 is hinged to the middle portion of the push rod 2, the top portion of the push rod 1 is hinged to the push plate, the bottom portion of the push rod 2 is hinged to the base, the bottom portion of the push rod 1 is slidably assembled in a slide groove 1 of the base through a slide rod 1, and the top portion of the push rod 2 is slidably assembled in a slide groove 2 of the push plate through a slide rod 2;

[0014] In each set of synchronous pull rod assembly, the slide rods of adjacent push plate units are connected through the pull rod, so that adjacent push plate units are connected through the pull rod;

[0015] In each set of flap assemblies, the flaps are respectively connected to the push plates of the two push plate units, so that the two push plate units are connected to the flaps together.

[0016] When the specific design of the push plate unit mentioned above is adopted, when the pull rod drives the slide rod 1 to make reciprocating linear motion along the slide groove 2, since the middle part of the push rod 1 is hinged with the middle part of the push rod 2, the top of the push rod 1 is hinged with the push plate, and the bottom of the push rod 2 is hinged with the base, the slide rod 2 will make reciprocating linear motion along the slide groove 2, and the push plate will make a lifting motion relative to the base, so that the flip plate can be flipped under the lifting action of the push plate unit.

[0017] Furthermore, the slide bar 1 is slidably mounted in the slide groove 1 through the bearing 1, and the slide bar 2 is slidably mounted in the slide groove 2 through the bearing 2. When this design is adopted, the slide bar 1 can slide more easily in the slide groove 1, and the slide bar 2 can slide more easily in the slide groove 2, saving energy.

[0018] Furthermore, each push plate unit also includes a connection seat sleeved outside the base, and the connection seat is connected to the slide bar 1. The slide bar 1 is connected to the pull rod through the connection seat, so that the driving device, the pull rod, and the push plate unit of the synchronous pull rod assembly can transmit force on the same axis, so that the connection seat and the pull rod can perform synchronous reciprocating linear motion on the same axis, and then the push plate unit is linked to perform synchronous lifting motion, so that the force transmission is more reliable, ensuring the synchronization of the lifting motion of the push plate unit.

[0019] Furthermore, in each set of flap assembly, a rib plate is provided at the bottom of the flap, and a vertical plate is provided at the top of the push plate of each push plate unit, wherein the top of the vertical plate of one push plate unit is hinged to the rib plate, and the top of the vertical plate of another push plate unit is slidably assembled in the slide groove 3 of the rib plate through the slide rod 3. This achieves the purpose that in each set of flap assembly, the flap is hinged to one push plate unit and slidably connected to the other push plate unit.

[0020] Further, the slide bar 3 is slidably assembled in the slide groove 3 through the bearing 3. When this design is adopted, the slide bar 3 can slide in the slide groove 3 more easily, saving energy.

[0021] Furthermore, the end surface of the rib plate for contacting the drill tool is an arc-shaped surface. The purpose of this design is that when the feed-in and feed-out mechanism of the present invention is assembled on the base of the power catwalk, in actual use, when one of the drill tools is sent to the feed-in and feed-out mechanism by the rack (legs), the other drill tools also need to be arranged on the rack. Thanks to the design of the arc-shaped surface of the rib plate, the arc-shaped surface is in smooth contact with the drill tool on the rack during the flipping process of the flap, avoiding / reducing the horizontal force generated by the two, so as to avoid / reduce the resistance of the flap from the drill tool on the rack, which is conducive to the flipping of the flap.

[0022] A power catwalk adopts the feeding and discharging mechanism of the power catwalk mentioned above.

[0023] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0024] The present invention discloses a feed-in and discharge mechanism of a power catwalk and a power catwalk thereof. The feed-in and discharge mechanism of the present invention can drive the pull rod to make reciprocating linear motion and link the push plate unit to make synchronous lifting motion through a driving device. Under the driving action of the driving devices of the two sets of synchronous pull rod assemblies, all the flaps can be synchronously flipped to any side of the two sides of the feed-in and discharge mechanism as required, and can be used to flip the drilling tool. Compared with the push tube mechanism of the prior art, the feed-in and discharge mechanism of the power catwalk of the present invention has a synchronous motion of a rigid structure, and does not require an additional control system to control and realize the synchronous motion. The feed-in and discharge mechanism of the present invention has a simpler structure, is more stable and reliable, and has higher synchronization. The power catwalk using the feed-in and discharge mechanism of the present invention has the above-mentioned beneficial effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will now be described by way of example with reference to the accompanying drawings, in which:

[0026] Figure 1 It is a structural schematic diagram of the feeding and discharging mechanism of the present invention; wherein the flap is in an unflipped state;

[0027] Figure 2It is a structural schematic diagram of the feeding and discharging mechanism of the present invention; wherein the flap is in a flipping state;

[0028] Figure 3 1. It is a structural schematic diagram of a synchronous pull rod assembly;

[0029] Figure 4 Schematic diagram of the structure of the push plate unit; wherein the push plate unit hides the connecting seat;

[0030] Figure 5 2 is a schematic diagram of the structure of the push plate unit; wherein the push plate unit does not hide the connecting seat;

[0031] Figure 6 is a structural schematic diagram of a flap assembly; wherein the bases of the two push plate units of the flap assembly are connected via a bottom plate;

[0032] Figure 7 It is a structural schematic diagram of a flap assembly; wherein two push plate units of the flap assembly of the flap assembly adopt the same base;

[0033] Figure 8 is a schematic diagram of the structure of the flap assembly; wherein the flap is in an unflipped state;

[0034] Fig. 9 is a structural schematic diagram of the flap assembly; wherein the flap is in a flipping state;

[0035] Fig.10 yes Fig. 9 A magnified image of point A;

[0036] Fig.11 is a front view of the flap assembly, wherein the flap is in an unflipped state;

[0037] Fig.12 is a front view of the flap assembly; wherein the flap is in a state of flipping to one side;

[0038] Fig.13 is a front view of the flap assembly, wherein the flap is in a state of flipping to the other side;

[0039] Fig.14 is a structural schematic diagram of the flap assembly; wherein the flap is in a V-shaped plate shape;

[0040] Fig.15 is a front view of the flap assembly; wherein the flap is in a V-shaped plate shape;

[0041] Fig.16The present invention is a schematic diagram of a power catwalk structure using a feed-in and feed-out mechanism of the present invention; wherein the power catwalk is in a state where a drill tool can be flipped from a feed-in and feed-out mechanism on a V-shaped drill tool support beam to a feed-in and feed-out mechanism on a base; or in other words, the power catwalk is in a state where a drill tool can be flipped from a feed-in and feed-out mechanism on a base to a feed-in and feed-out mechanism on a V-shaped drill tool support beam;

[0042] Fig.17 The present invention is a schematic diagram of a power catwalk structure using the feed and discharge mechanism of the present invention; wherein the power catwalk is in a state where drill tools can be transported from a V-shaped drill tool support beam to a drill table surface; or in other words, the power catwalk is in a state where drill tools can be transported from a drill table surface to a V-shaped drill tool support beam.

[0043] Markings in the figure: 1-driving device, 2-pull rod, 3-push plate unit, 31-push rod one, 311-slide rod one, 312-bearing one, 32-push rod two, 321-slide rod two, 312-bearing two, 33-push plate, 331-slide groove two, 332-limiting ring two, 34-base, 341-slide groove one, 342-limiting ring one, 35-connecting seat, 36-vertical plate, 361-slide rod three, 362-bearing three, 363-hinge point, 4-flap assembly, 41-flap, 42-rib plate, 421-slide groove three, 422-limiting ring three, 423-arc surface, 43-bottom plate, 5-base, 6-V-type drilling tool support beam, 7, 8-feeding and discharging mechanism. DETAILED DESCRIPTION

[0044] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0045] Any feature disclosed in this specification, unless otherwise stated, can be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0046] Embodiment 1

[0047] like Figures 1 to 15 As shown, a feeding and discharging mechanism of a power catwalk of this embodiment includes two sets of synchronous pull rod assemblies arranged in parallel; each set of synchronous pull rod assemblies includes a driving device 1 and a plurality of push plate units 3 that can perform lifting motion, and adjacent push plate units 3 are connected by pull rods 2, and the driving device 1 can drive the pull rods 2 to perform reciprocating linear motion and link the push plate units 3 to perform synchronous lifting motion;

[0048] The push plate units of the two sets of synchronous pull rod assemblies correspond to each other to form multiple pairs of push plate units 3; the top of each pair of push plate units is commonly connected with a flap 41 to form a group of flap components 4, and under the action of the lifting and lowering movement of the push plate unit, the flap can be flipped.

[0049] When the feeding and discharging mechanism of the power catwalk of the present invention is adopted, since in each set of synchronous tie rod assemblies, the driving device 1 can drive the tie rod 2 to make reciprocating linear motion, and at the same time, the tie rod 2 links the push plate unit 3 to make synchronous lifting motion, the push plate unit 3 connected thereto can make synchronous lifting motion through the action of the tie rod; at the same time, in each set of flap assembly 4, under the action of the lifting motion of the push plate unit, the flap can make a flipping motion. For the convenience of description, the two sets of synchronous tie rod assemblies are respectively referred to as the first set of synchronous tie rod assemblies and the second set of synchronous tie rod assemblies; Fig.11 As shown, in the initial state, the flap is in a low position, and the pull rod 2 moves linearly through the driving device 1 of the first set of synchronous pull rod assemblies, while the driving device 1 of the second set of synchronous pull rod assemblies does not work; at this time, the push plate unit 3 of the first set of synchronous pull rod assemblies performs synchronous lifting and lowering movements, so that the flap 41 of each set of flap assembly 4 will be synchronously flipped to one side of the feeding and discharging mechanism, as shown in FIG. Fig.12 As shown. Then, the driving device 1 of the first set of synchronous tie rod assembly drives the tie rod 2 to make a reverse linear motion, and the feeding and discharging mechanism can be restored to the initial state. Similarly, when the driving device 1 of the first set of synchronous tie rod assembly is not working, and the driving device 1 of the second set of synchronous tie rod assembly drives the tie rod 2 to make a reciprocating motion, the flap 41 can also be synchronously flipped to the other side of the feeding and discharging mechanism, as shown. Fig.13 As shown. The above-mentioned action process can make all the flaps 41 flip synchronously to any side of the two sides of the feeding and discharging mechanism as required, which can be used to flip the drilling tool; the feeding and discharging mechanism of the power catwalk of the present invention is simpler in structure, more stable and reliable, and more synchronized than the push pipe mechanism of the prior art. In one embodiment, the flap assembly 4 has 3 groups (each set of synchronous pull rod assembly has 3 push plate units 3), such as Figures 1 to 3 As shown, of course, according to actual needs, there can also be 2, 4 or more groups of flap assemblies 4.

[0050] Optionally, the flap 41 is in the shape of a flat plate or a V-shaped plate. Figures 8 to 13 As shown, the flap 41 is in the shape of a flat plate. The feeding and discharging mechanism of the present invention can be assembled on the base of the power catwalk and can be used to synchronously flip out the drilling tools thereon. Figure 14 to Figure 15 As shown, the flap 41 is in a V-shaped plate shape, and the feed-in and discharge mechanism of the present invention can be assembled to the V-shaped drill tool support beam of the power catwalk, and can be used to synchronously flip out the drill tools thereon.

[0051] Further, such as Figures 8 to 13As shown, in each group of flap assembly 4, the flap 41 is hinged to one of the push plate units 3 and slidably connected to the other push plate unit 3. The purpose of flipping the flap 41 can be achieved when any push plate unit 3 performs lifting motion. Of course, it is also possible that the flap 41 is slidably connected to both push plate units 3, but when this design is adopted, the freedom degree of the flap 41 is too large, the structure is not stable enough, and the flap is easy to move. If the flap 41 is hinged to both push plate units 3, the freedom degree of the flap 41 is too small (equal to 0), and it is difficult to achieve the flipping of the flap 41.

[0052] The present invention further specifically discloses a structural form of a push plate unit 3, which can achieve the purpose of enabling the push plate unit 3 to perform lifting movements. The push plate unit 3 has a scissor-type structure and can also be called a scissor-type push plate unit.

[0053] Further, such as Figures 1 to 5 As shown, each push plate unit 3 includes a push rod 1 31, a push rod 2 32, a push plate 33 and a base 34; wherein the middle portion of the push rod 1 31 is hinged to the middle portion of the push rod 2 32, the top portion of the push rod 1 31 is hinged to the push plate 33, the bottom portion of the push rod 2 32 is hinged to the base 34, the bottom portion of the push rod 1 31 is slidably assembled in a slide groove 1 341 of the base 34 through a slide rod 1 311, and the top portion of the push rod 2 32 is slidably assembled in a slide groove 2 331 of the push plate 33 through a slide rod 2 321;

[0054] In each set of synchronous pull rod assembly, the slide rods 311 of adjacent push plate units 3 are connected through the pull rod 2, so that adjacent push plate units are connected through the pull rod;

[0055] In each set of flap assemblies, the flap 41 is connected to the push plates 33 of the two push plate units respectively, so that the two push plate units are connected to the flap together.

[0056] When the specific design of the push plate unit 3 is adopted, when the pull rod 2 drives the slide bar 1 311 to make reciprocating linear motion along the slide groove 2 331, since the middle part of the push rod 1 31 is hinged with the middle part of the push rod 2 32, the top of the push rod 1 31 is hinged with the push plate 33, and the bottom of the push rod 2 32 is hinged with the base 34, the slide bar 2 321 will make reciprocating linear motion along the slide groove 2 331, and the push plate 33 will make a lifting motion relative to the base 34, so that the flip plate can be flipped under the lifting action of the push plate unit.

[0057] Further, such as Figure 4As shown, the slide bar 1 311 is slidably assembled in the slide groove 1 341 through the bearing 1 312, and the slide bar 2 321 is slidably assembled in the slide groove 2 331 through the bearing 2 322. When this design is adopted, the slide bar 1 311 can slide more easily in the slide groove 1 341 (rolling friction), and the slide bar 2 321 can slide more easily in the slide groove 2 331 (rolling friction), saving energy. Specifically, at the two ends of the slide bar 1 311, two slide grooves 1 341 are provided on the top of the base 34; at the two ends of the slide bar 2 321, two slide grooves 2 331 are provided on the bottom of the push plate 33. Both ends of the slide bar 1 311 are slidably assembled in the two slide grooves 1 341 through the bearing 1 312; both ends of the slide bar 2 321 are slidably assembled in the two slide grooves 2 331 through the bearing 2 322.

[0058] Further, such as Figure 4 As shown, a limiting ring 1 342 is provided inside the slide groove 1 341, and a limiting ring 2 332 is provided inside the slide groove 2 331. This can prevent the bearing 1 312 from sliding out of the slide groove 1 341, and prevent the bearing 2 322 from sliding out of the slide groove 2 331, making the structure of the push plate unit 3 more stable and reliable.

[0059] Further, such as Figure 3 , Figure 5 As shown, each push plate unit 3 also includes a connection seat 35 sleeved on the outside of the base 34, and the connection seat 35 is connected to the slide bar 1 311. The slide bar 1 311 is connected to the pull rod 2 through the connection seat 35, so that the driving device 1, the pull rod 2, and the push plate unit 3 of the synchronous pull rod assembly can transmit force on the same axis, so that the connection seat 35 and the pull rod 2 can perform synchronous reciprocating linear motion on the same axis, and then the push plate unit 3 is linked to perform synchronous lifting motion, and the force transmission is more reliable, ensuring the synchronization of the lifting motion of the push plate unit 3. Specifically, the connection seat 35 is in a square frame shape, and the two ends of the slide bar 1 311 are fixedly connected to the connection seat 35.

[0060] Further, such as Figure 3 , Figure 5 As shown, in each set of synchronous tie rod assemblies, the connection seat 35 of the push plate unit at one end position is connected to the driving device 1 to drive the connection seat 35 and the tie rod 2 to perform synchronous reciprocating linear motion, and link the push plate unit 3 to perform synchronous lifting motion. Optionally, the driving device 1 is a hydraulic telescopic cylinder or an electric telescopic cylinder.

[0061] Alternatively, in one embodiment, Figure 4 , Figure 5As shown, in each push plate unit 3, there are two push rods 1 31 and one push rod 2 32, the push rod 2 32 is sandwiched between two push rods 1 31, and the middle of the two push rods 1 31 is hinged with the middle of the two push rods 2 32. In another embodiment, in each push plate unit 3, there is one push rod 1 31 and two push rods 2 32, the push rod 1 31 is sandwiched between two push rods 2 32, and the middle of the push rod 1 31 is hinged with the middle of the two push rods 2 32. Of course, it is also possible that in each push plate unit 3, there is only one push rod 1 31 and one push rod 2 32.

[0062] Further, such as Figures 8 to 13 As shown, in each set of flap assembly 4, a rib plate 42 is provided at the bottom of the flap 41, and a vertical plate 36 is provided at the top of the push plate 33 of each push plate unit 3, wherein the top of the vertical plate 36 of one push plate unit 3 is hinged to the rib plate 42, and the top of the vertical plate 36 of the other push plate unit 3 is slidably assembled in the slide groove 3 421 of the rib plate 42 through the slide rod 3 361. The purpose of hinged connection of the flap 41 with one push plate unit 3 and slidably connected with the other push plate unit 3 in each set of flap assembly 4 is achieved.

[0063] Further, such as Fig.10 As shown, the slide bar 361 is slidably assembled in the slide groove 3 421 through the bearing 362. When this design is adopted, the slide bar 361 can slide in the slide groove 3 421 more easily (rolling friction), saving energy. Specifically, the rib plate 42 and the vertical plate 36 are respectively composed of two, and the slide bar 361 passes through the two vertical plates 36 and is fixedly connected thereto. The two rib plates 42 are provided with the slide groove 3 421, and both ends of the slide bar 361 are slidably assembled in the two slide grooves 3 421 through the bearing 3 362.

[0064] Further, such as Fig.10 As shown, a limiting ring 3 422 is provided inside the slide bar 3 361. The bearing 3 362 can be prevented from sliding out of the slide groove 3 421, making the structure of the flap assembly 4 more stable and reliable.

[0065] Further, such as Figures 9 to 13 As shown in FIG. 4 , the end surface of the rib plate 42 for contacting the drilling tool is an arc-shaped surface 423. Specifically, as Figures 10 to 13 As shown, the arc surface 423 is close to the slide groove 421. The purpose of this design is to assemble the feeding and discharging mechanism of the present invention to the base of the power catwalk. Fig.13As shown, in actual use, when one of the drill tools is sent to the feeding and discharging mechanism by the rack (leg), the other drill tools need to be arranged on the rack. Thanks to the design of the arc surface 423 of the rib plate 42, the arc surface 423 and the drill tools on the rack are in smooth contact during the flipping process of the flap 41, avoiding / reducing the horizontal force generated by the two, so as to avoid / reduce the resistance of the flap 41 from the drill tools on the rack, which is conducive to the flipping of the flap 41. Preferably, the arc surface 423 is an arc surface with the hinge point 363 of the vertical plate 36 and the rib plate 42 away from the arc surface 423 as the center. In actual use, it is necessary to design the arc surface 521 on the end face of the rib plate 52 that may contact the drill tools on the rack, while the other end face may be designed or not designed with the arc surface 521.

[0066] Alternatively, in one embodiment, Figure 6 As shown, in each set of flap assembly 4, the bases 34 of the two push plate units 3 are connected via a bottom plate 43, so that the bases of the two push plate units form an integral structure. Figure 7 As shown, in each set of flap assembly, the two push plate units use the same base 34 (the base 34 is equivalent to the bottom plate 43). In these two structural forms, the bases 34 of the two push plate units of each set of flap assembly 4 form an integrated structure, making the structure of the flap assembly 4 more stable and also facilitating the assembly of the feeding and discharging mechanism on the catwalk body of the power catwalk.

[0067] Embodiment 2

[0068] A power catwalk of the present embodiment adopts the material feeding and discharging mechanism of a power catwalk of the first embodiment.

[0069] The present invention is mainly to provide a feeding and discharging mechanism of a power catwalk, which can be used to flip drilling tools, has a simpler structure, is more stable and reliable, has higher synchronization, and the synchronous motion is the synchronous motion of a rigid structure. For ease of understanding, this embodiment briefly introduces an example of the arrangement position of the feeding and discharging mechanism of the present invention on the power catwalk. Specifically, it is described as follows.

[0070] like Figure 1 , Figure 2 , Figures 8 to 13 As shown, the flap 41 of the first feeding and discharging mechanism 7 of the present invention is in the shape of a flat plate; the feeding and discharging mechanism 7 can be assembled on the base 5 of the power catwalk (preferably, the bases 5 on both sides of the V-shaped drilling tool support beam 6 are equipped with the feeding and discharging mechanism 7), as shown in FIG. Fig.16 , Fig.17 As shown, it can be used to synchronously flip out the drilling tools on it, such as flipping it onto the rack (leg) or flipping it onto the V-shaped drilling tool support beam 6 (or the feeding and discharging mechanism 8 on the V-shaped drilling tool support beam 6). Figure 14 to Figure 15As shown, the flap 41 of the second feeding and discharging mechanism 8 of the present invention is in the shape of a V-shaped plate; the feeding and discharging mechanism 8 can be assembled to the V-shaped drilling tool support beam 6 of the power catwalk, such as Fig.16 , Fig.17 As shown, it can be used to synchronously flip out the drilling tool thereon, such as flipping it onto the base 5 (or onto the feeding and discharging mechanism 7 on the base 5).

[0071] Those skilled in the art will appreciate that the material feeding and discharging mechanism of the present invention can be applied not only to Fig.16 , Fig.17 The power catwalk of the structure shown can also be applied to power catwalks of other structural forms (such as the power catwalk described in the background technology), and of course can also be applied to other oil and gas drilling and production equipment that requires turning objects, etc., that is, all oil and gas drilling and production equipment that adopts the feeding and discharging mechanism of the present invention, especially the power catwalk, are within the scope of protection requested by the present invention.

[0072] In summary, the feed and discharge mechanism of the power catwalk and its power catwalk of the present invention can drive the pull rod to make reciprocating linear motion and link the push plate unit to make synchronous lifting motion through the driving device. Under the driving action of the driving devices of the two sets of synchronous pull rod assemblies, all the flaps can be synchronously flipped to any side of the two sides of the feed and discharge mechanism as required, and can be used to flip the drilling tools. Compared with the push tube mechanism of the prior art, the feed and discharge mechanism of the power catwalk of the present invention has a synchronous motion of a rigid structure, and no additional control system is required to control the synchronous motion. The feed and discharge mechanism of the present invention has a simpler structure, is more stable and reliable, and has higher synchronization. The power catwalk using the feed and discharge mechanism of the present invention has the above-mentioned beneficial effects.

[0073] The present invention is not limited to the above-mentioned specific embodiments, but extends to any new features or any new combination disclosed in this specification, as well as any new method or process steps or any new combination disclosed.

Claims

1. A feeding and discharging mechanism of a power catwalk, characterized in that: It includes two sets of synchronous pull rod assemblies arranged in parallel; each set of synchronous pull rod assemblies includes a driving device and a plurality of push plate units capable of lifting and lowering motions, and the adjacent push plate units are connected by pull rods, and the driving device can drive the pull rods to perform reciprocating linear motions and link the push plate units to perform synchronous lifting and lowering motions; The push plate units of the two sets of synchronous pull rod assemblies correspond to each other to form multiple pairs of push plate units; the top of each pair of push plate units is commonly connected with a flap to form a set of flap assembly, and under the action of the lifting and lowering movement of the push plate unit, the flap can be turned over; In each set of flap assemblies, the flap is hinged to one of the push plate units and slidably connected to the other push plate unit; Each push plate unit includes a push rod 1, a push rod 2, a push plate and a base; wherein the middle portion of the push rod 1 is hinged to the middle portion of the push rod 2, the top portion of the push rod 1 is hinged to the push plate, the bottom portion of the push rod 2 is hinged to the base, the bottom portion of the push rod 1 is slidably assembled in a slide groove 1 of the base through a slide rod 1, and the top portion of the push rod 2 is slidably assembled in a slide groove 2 of the push plate through a slide rod 2; In each set of synchronous pull rod assembly, the slide rods of adjacent push plate units are connected through the pull rod, so that adjacent push plate units are connected through the pull rod; In each set of flap assemblies, the flaps are respectively connected to the push plates of the two push plate units, so that the two push plate units are connected to the flaps together.

2. A feeding and discharging mechanism of a power catwalk as claimed in claim 1, characterized in that: The flap is in the shape of a flat plate or a V-shaped plate.

3. The feeding and discharging mechanism of a power catwalk according to claim 1, characterized in that: The slide bar 1 is slidably assembled in the slide groove 1 through the bearing 1, and the slide bar 2 is slidably assembled in the slide groove 2 through the bearing 2.

4. The feeding and discharging mechanism of a power catwalk as claimed in claim 1, characterized in that: Each push plate unit also includes a connecting seat sleeved outside the base, and the connecting seat is connected to the sliding rod.

5. The feeding and discharging mechanism of a power catwalk as claimed in claim 1, characterized in that: In each set of flap assemblies, a rib plate is provided at the bottom of the flap, and a vertical plate is provided at the top of the push plate of each push plate unit. The top of the vertical plate of one push plate unit is hinged to the rib plate, and the top of the vertical plate of another push plate unit is slidably assembled in the slide groove three of the rib plate through the slide rod three.

6. A feeding and discharging mechanism of a power catwalk as claimed in claim 5, characterized in that: The slide bar 3 is slidably assembled in the slide groove 3 through the bearing 3.

7. The feeding and discharging mechanism of a power catwalk as claimed in claim 5, characterized in that: The end surface of the rib plate for contacting the drilling tool is an arc-shaped surface.

8. A powered catwalk, characterized in that: A feeding and discharging mechanism of a power catwalk as described in any one of claims 1 to 7 is adopted.

Images