An electric drive two-dimensional rotating elastic opening pliers head device

Abstract

The present invention discloses an electric drive two-dimensional rotary elastic opening pliers head device, which relates to the technical field of oil drilling machinery and includes: an assembly bracket; an adjustment bracket movably assembled on the top of the assembly bracket; a connection assembly assembled on the adjustment bracket; a drive unit installed on the connection assembly; a lead screw installed at the output end of the drive unit; a movable frame installed on the lead screw, and when the drive unit works, the movable frame moves along the length direction of the lead screw; two pliers head assemblies are spaced and installed on the movable frame, and the end of the pliers head assembly is hinged to the movable frame; an adjustment assembly is installed at the front end of the connection assembly, and the adjustment assembly is axially connected to the pliers head assembly. The present invention solves the technical problems of poor positioning accuracy and inability to self-lock of the existing pliers head assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of oil drilling machinery, and particularly to an electric-driven two-dimensional rotating elastic opening pliers head device. Background Art

[0002] The electric-driven drill floor manipulator is a multi-functional automation device used on oil drilling platforms. Its main uses include: coupling the kelly with the drill pipe in the mouse hole, moving the kelly into the rat hole, automatically discharging the stands during drilling out, moving the stands to the wellhead during running in, moving the drill pipe from the gate ramp into the mouse hole, and moving the drill pipe from the wellhead or mouse hole to the gate ramp, etc.

[0003] At present, the pliers heads of the existing domestic drill floor manipulators have the following problems: (1) The strength of the pliers head is insufficient, and it is prone to deformation and damage after being impacted; (2) In order to adapt to a larger range of pipe strings, the inner dimension of the chuck is designed to be relatively large, resulting in a large internal gap when clamping the drill pipe, and poor positioning accuracy; (3) Due to the harsh on-site environment, the actuators are prone to failure under impact, without a self-locking function, and the working reliability is poor. Summary of the Invention

[0004] The purpose of the present invention is to provide an electric-driven two-dimensional rotating elastic opening pliers head device to solve at least one of the above technical problems.

[0005] The embodiment of the present application discloses an electric-driven two-dimensional rotating elastic opening pliers head device, including:

[0006] An assembly bracket;

[0007] An adjustment bracket, movably assembled on the top of the assembly bracket;

[0008] A connection component, assembled on the adjustment bracket;

[0009] A drive unit, installed on the connection component;

[0010] A lead screw, installed at the output end of the drive unit;

[0011] A movable frame, installed on the lead screw. When the drive unit works, the movable frame moves along the length direction of the lead screw;

[0012] Two pliers head components, spaced apart and installed on the movable frame, and the end of the pliers head component is connected to the movable frame;

[0013] An adjustment component, installed at the front end of the connection component, and the adjustment component is pivotally connected to the pliers head component.

[0014] By providing a lead screw and a movable frame, the present application enables the movable frame to move stably under the drive of the drive unit, thereby realizing the clamping of the pliers head component and completing the clamping of the drill pipe.

[0015] Based on the above technical solutions, the embodiments of the present application can also be improved as follows:

[0016] Further, it further includes a first rotating shaft and a second rotating shaft; the first rotating shaft is respectively connected to the top of the assembly bracket and the top of the adjustment bracket;

[0017] The second rotating shaft is respectively connected to the top of the connection assembly and the front end of the adjustment bracket. The beneficial effect of this step is that two-dimensional rotation adjustment can be achieved through the two rotating shafts.

[0018] Further, the connection assembly includes a connection seat and a connection frame. The top of the connection seat is connected to the second rotating shaft, and the bottom of the connection frame is connected to the bottom of the connection seat. The beneficial effect of this step is that adjustment is facilitated through the corresponding connection structure.

[0019] Further, the extending direction of the connection frame is parallel to the central axis of the driving unit. The beneficial effect of this step is to ensure the assembly space of subsequent components and avoid interference.

[0020] Further, it further includes a main pusher frame and main pusher rollers. The main pusher frame is installed above the end of the connection assembly, and the main pusher frame is located between the two jaw assemblies; the main pusher rollers are installed at the front end of the main pusher frame. The beneficial effect of this step is that the adjustment and placement of the drill can be facilitated through the corresponding main pusher rollers.

[0021] Further, the adjustment assembly includes:

[0022] Two hinge sliders are installed at intervals at the front end of the connection assembly, and the hinge sliders are axially connected to the jaw assemblies one by one;

[0023] An adjustment block is arranged between the hinge sliders, and the adjustment block is installed on the connection assembly through an adjustment bolt. The beneficial effect of this step is that the adjustment of the clamping size can be achieved through the mutual cooperation of the corresponding hinge sliders and the adjustment block.

[0024] Further, both side surfaces of the adjustment block in contact with the hinge sliders are inclined surfaces. The beneficial effect of this step is that the adjustment of the vertical position of the adjustment block can achieve the adjustment of the distance between the hinge sliders.

[0025] Further, an assembly groove is formed at the top of the hinge slider, a tension spring is arranged inside the assembly groove, one end of the tension spring is connected to the assembly groove, and the other end is connected to the jaw assembly. The beneficial effect of this step is that the structural stability of the jaw assembly can be ensured through the corresponding tension spring.

[0026] Furthermore, the jaw assembly includes:

[0027] A jaw connecting rod connected to the end of the movable frame;

[0028] A jaw seat movably connected to the jaw connecting rod, and the inner side of the jaw seat is pivotally connected to the hinge slider;

[0029] Jaws mounted on the jaw seat;

[0030] Jaw rollers mounted on the inner side of the jaws. The beneficial effect of this step is that it is convenient to replace through corresponding multiple components.

[0031] Furthermore, it further includes a proximity switch assembly mounted at the bottom of the connection assembly.

[0032] One or more technical solutions provided by this application have at least the following technical effects or advantages:

[0033] 1. This application has a corresponding hinge slider for controlling the clamping size. By replacing different hinge sliders subsequently, drill tools of different specifications can be clamped, greatly reducing the gap between the inner diameter of the jaws and the outer diameter of the drill tool and improving the operation accuracy.

[0034] 2. This application adopts a two-dimensional rotation structure design to realize the left and right rotation and upward rotation of the jaw assembly, meeting the requirements of the on-site drill tool suspension deviation.

[0035] 3. When the drill tool is inclined, the tension spring can be forced to open to solve the problem of the drill tool being stuck in the jaws in this case. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0037] Figure 1 It is a schematic structural diagram of an electric drive two-dimensional rotation elastic opening jaw device described in a specific embodiment of the present invention;

[0038] Figure 2 For Figure 1 The schematic diagram after removing the connection frame;

[0039] Figure 3 For Figure 2 The schematic diagram in another direction;

[0040] Reference numerals:

[0041] 1 - Assembly bracket; 2 - Adjustment bracket; 3 - Connection assembly; 4 - Drive unit; 5 - Lead screw; 6 - Movable frame; 7 - Clamp head assembly; 8 - Adjustment assembly; 9 - First rotating shaft; 10 - Second rotating shaft; 11 - Main pusher frame; 12 - Main pusher roller; 13 - Proximity switch assembly;

[0042] 301 - Connection seat; 302 - Connection frame;

[0043] 701 - Clamp head connecting rod; 702 - Clamp head seat; 703 - Jaw; 704 - Jaw roller;

[0044] 801 - Hinge slider; 802 - Adjusting block; 803 - Assembly groove; 804 - Tension spring. Detailed implementation manners

[0045] The embodiments of the technical solutions of the present invention will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention, so they are only examples and cannot be used to limit the protection scope of the present invention.

[0046] It should be noted that unless otherwise specified, the technical terms or scientific terms used in this application should have the ordinary meaning understood by those skilled in the art to which the present invention belongs.

[0047] In the description of this application, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0048] In this application, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] In order to better understand the above technical solutions, the above technical solutions will be described in detail below with reference to the accompanying drawings of the specification and specific implementation manners.

[0050] Embodiment:

[0051] As Figures 1-3As shown in the figure, an embodiment of the present application discloses an electric drive two-dimensional rotary elastic opening and closing jaw device for clamping a drill pipe to complete the placement of the drill pipe. Its specific structure is as follows:

[0052] An assembly bracket 1, with a corresponding through hole opened in the middle of the assembly bracket 1 for assembling the remaining other components;

[0053] An adjustment bracket 2, movably assembled on the top of the assembly bracket 1. The specific connection method can be shaft connection or other movable connection methods, that is, the adjustment bracket 2 can rotate around the Y-axis direction;

[0054] A connection component 3, assembled on the adjustment bracket 2. The assembly form of the connection component 3 and the adjustment bracket 2 is movable assembly, that is, the connection component 3 can rotate around the X-axis direction;

[0055] A drive unit 4, installed on the connection component 3. The drive unit 4 is specifically a brushless DC explosion-proof motor, which uses the motor to provide power;

[0056] A lead screw 5, installed at the output end of the drive unit 4. The lead screw 5 is an existing component for realizing transmission. The lead screw nut on it is connected to the subsequent movable frame 6 to realize stable movement;

[0057] A movable frame 6, installed on the lead screw 5. When the drive unit 4 works, the movable frame 6 moves along the length direction of the lead screw 5. The movable frame 6 is used to connect other components, such as the jaw assembly. When the lead screw 5 moves, it can move back and forth, and the lead screw can realize self-locking;

[0058] Two jaw assemblies 7, installed on the movable frame 6 at intervals, and the end of the jaw assembly 7 is hinged to the movable frame 6;

[0059] An adjustment component 8, installed at the front end of the connection component 3, and the adjustment component 8 is axially connected to the jaw assembly 7.

[0060] The actual working process of the present application is as follows:

[0061] When receiving the corresponding signal, the drive unit 4 starts to work, driving the lead screw 5 to rotate, so that the movable frame 6 moves along the lead screw. When the movable frame 6 moves towards the direction of the drive unit 4, at this time, the jaw assembly 7 is driven by the movable frame 6 to close, so as to clamp the drill pipe; when the movable frame 6 moves away from the drive unit 4, at this time, the jaw assembly 7 releases the drill pipe.

[0062] To achieve the adjustment of the jaw assembly 7 in multiple directions, corresponding rotating shafts can be provided to achieve multi-directional adjustment. This application further includes: a first rotating shaft 9 and a second rotating shaft 10; the first rotating shaft 9 is respectively connected to the top of the assembly bracket 1 and the top of the adjustment bracket 2;

[0063] The second rotating shaft 10 is respectively connected to the top of the connection assembly 3 and the front end of the adjustment bracket 2; the first rotating shaft 9 and the second rotating shaft 10 of this application are perpendicular to each other, so that the rotation directions of each component are different. Specifically, the central axis of the first rotating shaft 9 is parallel to the center line of the driving unit 4. At this time, the adjustment bracket 2 can rotate around the first rotating shaft 9; and the central axis of the second rotating shaft 10 is perpendicular to the central axis of the first rotating shaft 9, so that the connection assembly 3 can complete rotation around the second rotating shaft 10.

[0064] Among them, the connection assembly 3 includes a connection seat 301 and a connection frame 302. The top of the connection seat 301 is connected to the second rotating shaft 10, and the bottom of the connection frame 302 is connected to the bottom of the connection seat 301; the connection assembly 3 in this application is connected by multiple components. The connection method between the connection seat 301 and the connection frame 302 is bolt connection. The structure of the connection frame 302 can be a horizontally placed U-shaped type, which is convenient for connecting other subsequent components.

[0065] Among them, the extending direction of the connection frame 302 is parallel to the central axis of the driving unit 4. At the same time, the lead screw 5 connected to the driving unit 4 passes through the connection frame, and the movable frame 6 is installed on the lead screw 5 and moves freely inside the connection frame 302.

[0066] In an embodiment, this application further includes a main pusher frame 11 and a main pusher roller 12. The main pusher frame 11 is installed above the end of the connection assembly 3, and the main pusher frame 11 is located between the two jaw assemblies 7; the main pusher roller 12 is installed at the front end of the main pusher frame 11; the main pusher roller 12 in this application is used to assist the drill pipe, so that the drill pipe can fall stably and cooperate with the jaw assembly 7 to complete the limit of the drill pipe.

[0067] Among them, the adjustment assembly 8 includes:

[0068] Two hinge sliders 801 are installed at intervals at the front end of the connection assembly 3, and the hinge sliders 801 are axially connected to the jaw assemblies 7 one by one;

[0069] The adjusting block 802 is arranged between the hinge sliders 801, and the adjusting block 802 is installed on the connecting component 3 through adjusting bolts; the adjusting component 8 of the present application can adjust the distance between the two jaw components 7 so as to adapt to drill tools of different sizes; the specific assembly form is that one hinge slider 801 cooperates with one jaw component 7, and corresponding adjusting blocks 802 are arranged on the two hinge sliders 801 to control the distance between the hinge sliders 801, so as to control the closing size of the two jaw components 7.

[0070] Wherein, both side surfaces of the adjusting block 802 in contact with the hinge slider 801 are inclined surfaces. The adjusting block 802 in the present application is connected by adjusting bolts and can move up and down; when the adjusting block 802 moves up and down, since the contact surface between the adjusting block 802 and the hinge slider 801 is an inclined surface, the distance between the two hinge sliders 801 changes, thereby adjusting the closing size of the two jaw components 7.

[0071] In an embodiment, an assembly groove 803 is formed at the top of the hinge slider 801, a tension spring 804 is arranged inside the assembly groove 803, one end of the tension spring 804 is connected to the assembly groove 803, and the other end is connected to the jaw component 7; the present application is provided with a tension spring to provide tension and ensure the stability of the connection of the jaw component.

[0072] In an embodiment, the jaw component 7 includes:

[0073] A jaw connecting rod 701, connected to the end of the movable frame 6;

[0074] A jaw seat 702, movably connected to the jaw connecting rod 701, and the inner side of the jaw seat 702 is pivotally connected to the hinge slider 801;

[0075] Jaw claws 703, installed on the jaw seat 702;

[0076] Jaw claw rollers 704, installed on the inner side of the jaw claws 703; the present application designs the jaw component 7, wherein one end of the jaw connecting rod 701 is connected to the movable frame 6, and the other end is pivotally connected to the jaw seat 702; at the same time, one end of the tension spring 804 is connected to the jaw seat 702, and the other end is connected to the groove wall of the assembly groove 803, so as to ensure the stability of the jaw seat 702, facilitate the subsequent jaw claws 703 to hold the drill tool tightly, and at the same time, the end of the jaw seat 702 is pivotally connected to the hinge slider 801, and the jaw seat 702 is driven to move by the pulling of the jaw connecting rod 701, thereby realizing the movement of the jaw claws 703; the jaw claws 703 can be adjusted and replaced according to customer needs.

[0077] In one embodiment, the present application further includes a proximity switch assembly 13. The proximity switch assembly 13 is installed at the bottom of the connection assembly 3. This proximity switch assembly 13 is an existing component, including a proximity switch, a proximity switch protection block, etc., and is used to determine whether the drill tool has been placed between the two jaw assemblies 7, so as to send a signal. At the same time, a corresponding encoder assembly is also provided at the bottom of the drive unit, which is convenient for subsequent connection to the controller to achieve control.

[0078] The working process of the present application is as follows:

[0079] When placing the drill tool, the proximity switch assembly 13 sends a signal. After the controller receives the signal, it controls the drive unit to rotate, causing the lead screw 5 to rotate synchronously, and at the same time driving the movable frame 6 to move, so that the jaw link 701 pulls the jaw seat 702 to rotate around the hinge slider 801, and then drives the jaws 703 to close and clamp the drill tool. When releasing the drill tool, the movement mode is opposite to the foregoing.

[0080] In the description of the present invention, a large number of specific details are set forth. However, it is understood that the embodiments of the present invention may be practiced without these specific details. In some instances, well-known methods, structures, and technologies are not shown in detail so as not to obscure the understanding of this specification.

[0081] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered by the scope of the claims and the specification of the present invention.

Claims

1. An electric drive two-dimensional rotating elastic opening and closing jaw device, characterized in that, Comprising: Assembly bracket; Adjusting bracket, movably assembled on the top of the assembly bracket; Connection component, assembled on the adjusting bracket; Drive unit, installed on the connection component; Lead screw, installed at the output end of the drive unit; Moving frame, installed on the lead screw, and when the drive unit works, the moving frame moves along the length direction of the lead screw; Two jaw components, installed on the moving frame at intervals, and the end of the jaw component is connected to the moving frame; Adjusting component, installed at the front end of the connection component, and the adjusting component is pivotally connected to the jaw component; The adjusting component includes: Two hinge sliders, installed at the front end of the connection component at intervals, and the hinge sliders are pivotally connected to the jaw components one by one; Adjusting block, arranged between the hinge sliders, and the adjusting block is installed on the connection component through an adjusting bolt; Both side surfaces of the adjusting block in contact with the hinge sliders are inclined surfaces; An assembly groove is formed at the top of the hinge slider, a tension spring is arranged inside the assembly groove, one end of the tension spring is connected to the assembly groove, and the other end is connected to the jaw component.

2. The electric drive two-dimensional rotary elastic opening pliers head device according to claim 1, characterized in that, It further includes a first rotating shaft and a second rotating shaft; the first rotating shaft is respectively connected to the top of the assembly bracket and the top of the adjusting bracket; The second rotating shaft is respectively connected to the top of the connection component and the front end of the adjusting bracket.

3. The electric drive two-dimensional rotary elastic opening pliers head device according to claim 2, characterized in that The connection component includes a connection seat and a connection frame, the top of the connection seat is connected to the second rotating shaft, and the bottom of the connection frame is connected to the bottom of the connection seat.

4. The electric drive two-dimensional rotary elastic opening pliers head device according to claim 3, characterized in that The extending direction of the connection frame is parallel to the central axis of the drive unit.

5. The electric drive two-dimensional rotary elastic opening pliers head device according to claim 1, characterized in that It further includes a main pusher frame and a main pusher roller, the main pusher frame is installed above the end of the connection component, and the main pusher frame is located between the two jaw components; the main pusher roller is installed at the front end of the main pusher frame.

6. The electric drive two-dimensional rotary elastic opening pliers head device according to claim 5, characterized in that The jaw component includes: Jaw connecting rod, connected to the end of the moving frame; Jaw seat, movably connected to the jaw connecting rod, and the inner side of the jaw seat is pivotally connected to the hinge slider; Jaw, installed on the jaw seat; Jaw roller, installed on the inner side of the jaw.

7. The electric drive two-dimensional rotary elastic opening pliers head device according to claim 6, characterized in that It further includes a proximity switch component, and the proximity switch component is installed at the bottom of the connection component.

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