Rotary locking mechanism and method for rotary table and engineering equipment

Abstract

The invention provides a rotary table rotation locking mechanism which comprises a rotary table, a lower frame and a locking mechanism, and the rotary table is rotatably arranged on the lower frame; the locking mechanism comprises a locking piece and a butt joint structure, and the locking piece comprises a locking part matched with the butt joint structure; the locking part has a locking direction and an unlocking direction which are opposite, and the locking part can move in the locking direction and the unlocking direction; when the locking part moves in the locking direction, the locking part can be connected with the butt joint structure so as to limit rotation of the rotary table relative to the lower vehicle frame. When the locking part moves in the unlocking direction, the locking part can be separated from the butt joint structure. According to the rotary table rotation locking mechanism, the rotary table can be conveniently locked, operation is easy, the locking mechanism does not need to be detached and stored independently when the rotary table is not locked, and the locking mechanism is prevented from being lost. The invention further provides a rotary table rotation locking method and engineering equipment.

Description

Technical Field

[0001] The invention relates to the technical field of turntable locking structures, and in particular to a turntable rotation locking mechanism and method and engineering equipment. Background Art

[0002] A rotary drilling rig is a commonly used type of construction machinery. When a rotary drilling rig is drilling, the position of the turntable needs to be fixed to limit the rotation of the turntable relative to the lower frame, thereby ensuring the accuracy and safety of the drilling.

[0003] like Figure 1 As shown, the locking mechanism 6 on the current rotary drilling rig generally includes a connecting rod 61, two limit pins 62 and two spring pins 63. When the turntable 1 needs to be locked, one end of the connecting rod 61 is fixed to the turntable 1 through the limit pin 62 and locked with the spring pin 63, and the other end of the connecting rod 61 is fixed to the lower frame 2 through the limit pin 62 and locked with the spring pin 63, thereby fixing the position of the turntable 1.

[0004] However, the locking mechanism 6 has many parts and components, and the disassembly and assembly steps are relatively complicated, which is inconvenient to operate. Moreover, when there is no need to lock the turntable 1, the locking mechanism 6 needs to be removed and stored separately, which is not only inconvenient to store, but also has the risk of being lost. Summary of the invention

[0005] The purpose of the present invention is to provide a turntable rotation locking mechanism, method and engineering equipment, aiming to solve or at least partially solve the shortcomings of the above-mentioned background technology. The turntable rotation locking mechanism can conveniently lock the turntable, is simple to operate, and when the turntable is not locked, the locking mechanism does not need to be removed and stored separately, thereby avoiding the loss of the locking mechanism.

[0006] The present invention provides a turntable rotation locking mechanism, comprising a turntable, a lower frame and a locking mechanism, wherein the turntable is rotatably arranged on the lower frame; the locking mechanism comprises a locking member and a docking structure, wherein the locking member is arranged on the first one of the turntable and the lower frame, and the docking structure is arranged on the second one of the turntable and the lower frame; the locking member comprises a locking portion matched with the docking structure;

[0007] The locking portion has opposite locking and unlocking directions, and the locking portion can move along the locking direction and the unlocking direction; when the locking portion moves along the locking direction, the locking portion can engage with the docking structure to limit the rotation of the turntable relative to the lower frame; when the locking portion moves along the unlocking direction, the locking portion can disengage from the docking structure.

[0008] Further, the docking structure is a pin hole provided on the second one, and the locking portion is a pin shaft plugged into and matched with the pin hole;

[0009] When the pin shaft moves along the locking direction, the pin shaft can be inserted into the pin hole; when the pin shaft moves along the unlocking direction, the pin shaft can be disengaged from the pin hole.

[0010] Furthermore, the locking member further comprises a guide cylinder, the guide cylinder being fixed to the first one; the locking portion is disposed in the guide cylinder, and the locking portion can be telescopically moved along the axial direction of the guide cylinder;

[0011] The locking mechanism has a locking state and an unlocking state; when the locking mechanism is in the locking state, part of the locking portion extends out of the guide cylinder and engages with the docking structure; when the locking mechanism is in the unlocking state, the locking portion retracts into the guide cylinder and disengages from the docking structure.

[0012] Furthermore, a guide groove is provided on the side wall of the guide cylinder, and the guide groove extends along the axial direction of the guide cylinder; an operating part is fixedly provided on the locking part, and the operating part extends out of the guide cylinder through the guide groove; when the operating part is manipulated to move along the guide groove, the locking part can move along the axial direction of the guide cylinder.

[0013] Furthermore, a first limiting groove is further provided on the side wall of the guide cylinder, and the first limiting groove is communicated with the guide groove; when the locking mechanism is in a locked state, the operating part can be restricted in the first limiting groove after moving into the first limiting groove;

[0014] And / or, a second limiting groove is further provided on the side wall of the guide cylinder, and the second limiting groove is connected to the guide groove; when the locking mechanism is in an unlocked state, the operating part can be restricted in the second limiting groove after moving into the second limiting groove.

[0015] Further, the first limiting groove includes a first transverse groove extending horizontally and a first vertical groove extending downwardly from the first transverse groove, the first transverse groove is connected to the guide groove, and the first vertical groove is connected to the first transverse groove; when the locking mechanism is in a locked state, the operating part can be moved into the first vertical groove through the first transverse groove and then be restricted in the first vertical groove;

[0016] Alternatively, the first limiting groove includes a first inclined groove extending obliquely; when the locking mechanism is in a locked state, the operating part can be restricted in the first inclined groove after moving into the first inclined groove.

[0017] Furthermore, the locking member also includes a driving device, which is fixed to the first one; the driving device is connected to the locking portion, and the driving device is used to drive the locking portion to move along the locking direction and the unlocking direction.

[0018] Furthermore, the locking member further comprises a support frame, the support frame is fixed to the first one, and the locking portion is slidably connected to the support frame.

[0019] The present invention also provides a turntable rotation locking method based on the turntable rotation locking mechanism as described above, the turntable rotation locking method comprising:

[0020] When locking the turntable, first align the locking portion with the docking structure along the locking direction, then drive the locking portion to move along the locking direction so that the locking portion engages with the docking structure, thus completing the locking of the turntable;

[0021] When the turntable is unlocked, the locking portion is driven to move along the unlocking direction so that the locking portion is disengaged from the docking structure, thereby completing the unlocking of the turntable.

[0022] The present invention also provides an engineering equipment, comprising the turntable rotation locking mechanism as described above.

[0023] The turntable rotation locking mechanism provided by the present invention is provided with a locking mechanism, wherein the locking mechanism includes a locking piece and a docking structure, and the locking piece includes a locking portion that cooperates with the docking structure. The locking portion is moved along a locking direction or an unlocking direction to engage or disengage the locking portion from the docking structure, thereby achieving locking or unlocking of the turntable. The locking mechanism is not only simple to operate, without the need to disassemble and assemble the locking mechanism each time it is used, but also does not need to be removed and stored separately when the turntable is not locked, thereby avoiding loss of the locking mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The figure is a schematic diagram of the connection structure between the locking mechanism, the turntable and the lower frame in the prior art.

[0025] Figure 2 It is a structural schematic diagram of a locking mechanism in the prior art.

[0026] Figure 3 It is a structural schematic diagram of the turntable rotation locking mechanism in the first embodiment of the present invention when the locking mechanism is in a locked state.

[0027] Figure 4 It is a structural schematic diagram of the turntable rotation locking mechanism in the first embodiment of the present invention when the locking mechanism is in the unlocked state.

[0028] Figure 5Schematic diagram of the structure of the locking member in the first embodiment of the present invention.

[0029] Figure 6 for Figure 5 Schematic diagram of the explosion structure.

[0030] Figure 7 FIG. 1 is a schematic diagram of the structure of the operating portion in the first embodiment of the present invention.

[0031] Figure 8 It is a schematic structural diagram of the guide cylinder in the first embodiment of the present invention.

[0032] Fig. 9 It is a schematic structural diagram of a guide cylinder in another embodiment of the present invention.

[0033] Fig.10 It is a schematic structural diagram of a guide cylinder in another embodiment of the present invention.

[0034] Fig.11 It is a schematic structural diagram of a guide cylinder in another embodiment of the present invention.

[0035] Fig.12 Schematic cross-sectional view of a locking member in the second embodiment of the present invention. DETAILED DESCRIPTION

[0036] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0037] The terms "first", "second", "third", "fourth" and the like (if any) in the description and claims of the present invention are used to distinguish similar objects and are not necessarily used to describe a particular sequence or order.

[0038] The directional words such as up, down, left, right, front, back, top, bottom, etc. (if any) involved in the specification and claims of the present invention are defined by the positions of the structures in the drawings and the positions of the structures relative to each other, and are only for the clarity and convenience of expressing the technical solution. It should be understood that the use of directional words should not limit the scope of protection claimed in this application.

[0039] First embodiment

[0040] like Figures 3 to 6 As shown, the first embodiment of the present invention provides a turntable slewing locking mechanism, comprising a turntable 1, a lower frame 2 and a locking mechanism (not numbered in the figure), wherein the turntable 1 is located above the lower frame 2 and is rotatably disposed on the lower frame 2, that is, the turntable 1 can rotate relative to the lower frame 2. Specifically, the turntable 1 is rotatably connected to the lower frame 2 via a slewing bearing 3.

[0041] The locking mechanism includes a locking member 4 and a docking structure 5, the locking member 4 is arranged on the first one of the turntable 1 and the lower frame 2, and the docking structure 5 is arranged on the second one of the turntable 1 and the lower frame 2; that is, the locking member 4 is arranged on one of the turntable 1 and the lower frame 2, and the docking structure 5 is arranged on the other one of the turntable 1 and the lower frame 2.

[0042] The locking member 4 includes a locking portion 41 that matches the docking structure 5. The locking portion 41 is movably connected to the first one (specifically, movably connected), and the locking portion 41 can move relative to the first one. The locking portion 41 has opposite locking directions S1 and unlocking directions S2, and the locking portion 41 can move relative to the first one along the locking direction S1 and the unlocking direction S2. In this embodiment, the locking direction S1 is the direction in which the locking portion 41 approaches the docking structure 5, and the unlocking direction S2 is the direction in which the locking portion 41 moves away from the docking structure 5.

[0043] The locking mechanism has a locked state and an unlocked state. Figure 3 As shown, when the locking portion 41 moves along the locking direction S1, after the locking portion 41 moves to a certain position, the locking portion 41 can engage with the docking structure 5, that is, the locking mechanism is in a locked state, and the locking mechanism can limit the rotation of the turntable 1 relative to the lower frame 2, that is, the turntable 1 cannot rotate relative to the lower frame 2 at this time; Figure 4 As shown, when the locking portion 41 moves along the unlocking direction S2, after the locking portion 41 moves to a certain position, the locking portion 41 can be disengaged from the docking structure 5, that is, the locking mechanism is in an unlocked state, and at this time the locking mechanism cannot limit the rotation of the turntable 1 relative to the lower frame 2, that is, at this time the turntable 1 can rotate relative to the lower frame 2.

[0044] The turntable rotation locking mechanism provided in the present embodiment is provided with a locking mechanism, wherein the locking mechanism includes a locking member 4 and a docking structure 5, wherein the locking member 4 includes a locking portion 41 matched with the docking structure 5, and the locking portion 41 is moved along the locking direction S1 or the unlocking direction S2 to engage or disengage the locking portion 41 with the docking structure 5, thereby achieving the locking or unlocking of the turntable 1; the locking mechanism is not only simple to operate, without the need to disassemble and assemble the locking mechanism each time it is used, but also the locking mechanism does not need to be removed and stored separately when the turntable 1 is not locked, thereby avoiding the loss of the locking mechanism.

[0045] Furthermore, if Figure 3 and Figure 4As shown, in this embodiment, the locking member 4 is arranged on the lower frame 2, and the docking structure 5 is arranged on the turntable 1 (that is, the first one is the lower frame 2, and the second one is the turntable 1), so that when the locking member 4 is arranged on the turntable 1, the locking member 4 can be prevented from interfering with other components during the rotation of the turntable 1 as much as possible. Of course, in other embodiments, when the locking member 4 does not interfere with other components during the rotation of the turntable 1, the locking member 4 can also be arranged on the turntable 1, and the docking structure 5 is arranged on the lower frame 2.

[0046] Furthermore, if Figures 3 to 6 As shown, in this embodiment, the docking structure 5 is a latch hole 51 provided on the second party (i.e., the latch hole 51 is provided on the turntable 1), and the locking portion 41 is a pin shaft 411 plugged into and matched with the latch hole 51. The size of the latch hole 51 matches the size of the pin shaft 411 to prevent the pin shaft 411 from shaking in the latch hole 51 after the pin shaft 411 is plugged into the latch hole 51. In this embodiment, the latch hole 51 is a round hole, the pin shaft 411 is a cylindrical structure, and the diameter of the latch hole 51 is equal to the outer diameter of the pin shaft 411, or the diameter of the latch hole 51 is slightly larger than the outer diameter of the pin shaft 411. Of course, in other embodiments, the pin shaft 411 and the latch hole 51 may also be other shapes and structures.

[0047] When the pin 411 moves along the locking direction S1, the pin 411 can be inserted into the pin hole 51, so that the locking mechanism is in a locked state; when the pin 411 moves along the unlocking direction S2, the pin 411 can be disengaged from the pin hole 51 (i.e., the pin 411 is no longer inserted into the pin hole 51), so that the locking mechanism is in an unlocked state. Of course, in other embodiments, the docking structure 5 and the locking portion 41 can also be other structures.

[0048] Specifically, in this embodiment, the locking direction S1 and the unlocking direction S2 of the locking portion 41 are parallel to the vertical direction, that is, the locking direction S1 and the unlocking direction S2 are perpendicular to the rotation direction of the turntable 1, the locking direction S1 is the vertical upward direction, and the unlocking direction S2 is the vertical downward direction. The pin shaft 411 is arranged to extend in the vertical direction, and the pin shaft 411 can move vertically up and down. When the pin shaft 411 moves upward, the pin shaft 411 can be inserted into the pin hole 51; when the pin shaft 411 moves downward, the pin shaft 411 can be disengaged from the pin hole 51.

[0049] Furthermore, if Figure 3 and Figure 4 As shown, in this embodiment, the turntable 1 includes a rotating base plate 11 , and the latch hole 51 is disposed on the rotating base plate 11 .

[0050] Furthermore, if Figures 3 to 6As shown, in this embodiment, the locking member 4 also includes a guide cylinder 42, which is a hollow structure and is fixed to the first one; specifically, the guide cylinder 42 is fixed to the lower frame 2 (of course, in other embodiments, when the locking member 4 is disposed on the turntable 1, the guide cylinder 42 is fixed to the turntable 1). The locking portion 41 is disposed in the guide cylinder 42, and the locking direction S1 and the unlocking direction S2 of the locking portion 41 are parallel to the axial direction of the guide cylinder 42 (that is, the axial direction of the guide cylinder 42 is parallel to the vertical direction, that is, the guide cylinder 42 is arranged to extend vertically), and the locking portion 41 can be telescopically moved relative to the guide cylinder 42 along the axial direction of the guide cylinder 42, thereby realizing the movable connection between the locking portion 41 and the lower frame 2.

[0051] When the locking mechanism is in a locked state, part of the locking portion 41 extends out of the guide tube 42 and engages with the docking structure 5; when the locking mechanism is in an unlocked state, the locking portion 41 partially or completely retracts into the guide tube 42 and disengages from the docking structure 5.

[0052] Specifically, in this embodiment, the guide cylinder 42, on the one hand, guides the telescopic movement of the locking portion 41, and on the other hand, transmits torque and connects the locking portion 41 with the lower frame 2 (when the locking mechanism is in the locked state, the torque applied by the turntable 1 to the locking portion 41 will be transmitted to the lower frame 2 via the guide cylinder 42, thereby limiting the rotation of the turntable 1 relative to the lower frame 2). The guide cylinder 42 is a cylindrical structure, and the inner diameter of the guide cylinder 42 matches the outer diameter of the locking portion 41 (pin 411), thereby preventing the locking portion 41 and the guide cylinder 42 from shaking when the locking mechanism is in the locked state and affecting the locking effect. In this embodiment, the inner diameter of the guide cylinder 42 is slightly larger than the outer diameter of the locking portion 41; or, the inner diameter of the guide cylinder 42 is equal to the outer diameter of the locking portion 41.

[0053] Furthermore, if Figures 3 to 6 As shown, in this embodiment, the locking portion 41 has a first end 41A and a second end 41B opposite to each other, and the first end 41A is closer to the docking structure 5 than the second end 41B. When the locking portion 41 telescopically moves along the axial direction of the guide cylinder 42, the second end 41B is always located in the guide cylinder 42 to prevent the locking portion 41 from being separated from the guide cylinder 42. When the locking mechanism is in a locked state, the first end 41A extends out of the guide cylinder 42 and engages with the docking structure 5; when the locking mechanism is in an unlocked state, the first end 41A is partially or completely retracted into the guide cylinder 42 and separated from the docking structure 5.

[0054] Furthermore, if Figures 3 to 6 As shown, in this embodiment, the guide cylinder 42 is provided with an opening 420 at least at one end close to the docking structure 5 , and the locking portion 41 can extend out of the guide cylinder 42 or retract into the guide cylinder 42 through the opening 420 .

[0055] Furthermore, if Figure 3 and Figure 4 As shown, in this embodiment, the guide cylinder 42 is welded and fixed to the lower frame 2 by the reinforcing ribs 44 (that is, the guide cylinder 42 and the reinforcing ribs 44 are welded and fixed, and the reinforcing ribs 44 and the lower frame 2 are welded and fixed), and the number of the reinforcing ribs 44 is multiple, and the multiple reinforcing ribs 44 are arranged at intervals around the circumference of the guide cylinder 42, thereby improving the connection strength between the guide cylinder 42 and the lower frame 2. Of course, in other embodiments, the guide cylinder 42 and the lower frame 2 can also be connected by bolts or the like.

[0056] Furthermore, if Figures 3 to 6 and Figure 8 As shown, in this embodiment, a guide groove 421 is provided on the side wall of the guide cylinder 42, and the guide groove 421 extends along the axial direction of the guide cylinder 42 (that is, the guide groove 421 extends along the locking direction S1 and the unlocking direction S2 of the locking portion 41). An operating portion 43 is fixedly provided on the locking portion 41, and the operating portion 43 extends out of the guide cylinder 42 through the guide groove 421 (that is, one end of the operating portion 43 is fixedly connected to the locking portion 41, and the other end passes through the guide groove 421 and extends out of the guide cylinder 42). When the operating portion 43 is manipulated to move along the guide groove 421, the operating portion 43 can drive the locking portion 41 to move along the axial direction of the guide cylinder 42, so that the locking mechanism is switched between the locked state and the unlocked state.

[0057] Specifically, in this embodiment, the operating part 43 is a handle, and the locking mechanism is a manual operating mechanism. When the operating part 43 is operated to move in the guide groove 421 along the locking direction S1, the operating part 43 drives the locking part 41 to move in the locking direction S1, and when the operating part 43 moves to the top position of the guide groove 421, the locking part 41 engages with the docking structure 5; when the operating part 43 is operated to move in the guide groove 421 along the unlocking direction S2, the operating part 43 drives the locking part 41 to move in the unlocking direction S2, so that the locking part 41 is disengaged from the docking structure 5, and finally the operating part 43 moves to the bottom position of the guide groove 421. At the same time, in this embodiment, along the axial direction of the guide cylinder 42, both ends of the guide groove 421 do not penetrate the guide cylinder 42, so that the operating part 43 will not fall out of the guide groove 421, that is, the locking part 41 will not be disengaged from the guide cylinder 42.

[0058] Furthermore, if Figure 6 and Figure 7As shown, in this embodiment, the operating portion 43 is fixed to the locking portion 41 by threaded connection to facilitate assembly. Specifically, an external thread 431 is provided on the side wall of one end of the operating portion 43, and a threaded hole 412 is provided on the locking portion 41, and the external thread 431 is connected to the threaded hole 412 by threading; at the same time, the operating portion 43 is a cylindrical rod-shaped structure, and a screw block 432 is fixed on the other end of the operating portion 43. The screw block 432 is specifically in the shape of a square block, and the screw block 432 is used for a screwing tool (such as a wrench, etc.) to tighten the external thread 431 on the operating portion 43 into the threaded hole 412 (because the operating portion 43 is cylindrical, it is not convenient for the screwing tool to directly screw the operating portion 43). Of course, in other embodiments, the operating portion 43 can also be fixed to the locking portion 41 by other means, such as by welding.

[0059] Furthermore, if Figures 3 to 6 and Figure 8 As shown, in this embodiment, a first limiting groove 422 is further provided on the side wall of the guide cylinder 42, and the first limiting groove 422 is connected to the guide groove 421; specifically, the first limiting groove 422 is connected to one end of the guide groove 421 along the locking direction S1 (in this embodiment, that is, the first limiting groove 422 is connected to the top of the guide groove 421). When the locking mechanism is in the locked state, the operating part 43 can move from the guide groove 421 to the first limiting groove 422, and then be restricted in the first limiting groove 422, that is, at this time, the operating part 43 is restricted in the first limiting groove 422 and cannot move (or can only move slightly), so that the locking part 41 can remain in the locked state.

[0060] Furthermore, if Figures 3 to 6 and Figure 8 As shown, in this embodiment, the first limiting groove 422 includes a first transverse groove 4221 extending horizontally (i.e., extending along the circumference of the guide cylinder 42) and a first vertical groove 4222 extending downward from the first transverse groove 4221. The length of the first vertical groove 4222 is much smaller than the length of the guide groove 421. The first transverse groove 4221 is connected to the guide groove 421, and the first vertical groove 4222 is connected to the first transverse groove 4221. When the locking mechanism is in a locked state, the operating portion 43 can move from the guide groove 421 through the first transverse groove 4221 to the first vertical groove 4222 and then be restricted in the first vertical groove 4222. In this way, under the action of the self-weight of the operating portion 43 and the locking portion 41, the operating portion 43 will automatically remain in the first vertical groove 4222. Even if the locking portion 41 is subjected to lateral and longitudinal forces, the operating portion 43 will only move slightly in the first vertical groove 4222 and will not escape from the first vertical groove 4222.

[0061] Specifically, in this embodiment, the first vertical groove 4222 extends vertically downward (of course, the first vertical groove 4222 may also extend obliquely downward), one end of the first transverse groove 4221 is connected to the top of the guide groove 421, and the other end of the first transverse groove 4221 is connected to the first vertical groove 4222. Of course, in other embodiments, the first vertical groove 4222 and the first transverse groove 4221 may also be arranged in other forms.

[0062] like Fig.11 As shown, in another embodiment, the first limiting groove 422 includes a first inclined groove 4223 extending obliquely downward, and the first inclined groove 4223 is connected to the guide groove 421. When the locking mechanism is in a locked state, the operating portion 43 can be moved from the guide groove 421 to the first inclined groove 4223 and then be restricted in the first inclined groove 4223. Under the action of the self-gravity of the operating portion 43 and the locking portion 41, the operating portion 43 is automatically retained in the first inclined groove 4223. Of course, the first limiting groove 422 can also be other forms of structures.

[0063] like Fig. 9 As shown, in another embodiment, a second limiting groove 423 is further provided on the side wall of the guide cylinder 42, and the second limiting groove 423 is connected to the guide groove 421; specifically, the second limiting groove 423 is connected to one end of the guide groove 421 along the unlocking direction S2 (that is, the second limiting groove 423 is connected to the bottom end of the guide groove 421). When the locking mechanism is in the unlocking state, the operating part 43 can move from the guide groove 421 to the second limiting groove 423, and then be restricted in the second limiting groove 423, so that the locking part 41 can be better maintained in the unlocking state. Due to the self-gravity of the operating part 43 and the locking part 41, the operating part 43 will automatically remain in the second limiting groove 423 without moving up and down.

[0064] like Fig. 9 As shown, as an embodiment, the second limiting groove 423 includes a horizontally extending second transverse groove 4231, and the second transverse groove 4231 is connected to the guide groove 421; when the locking mechanism is in an unlocked state, the operating part 43 can move from the guide groove 421 to the second transverse groove 4231 and then be restricted in the second transverse groove 4231.

[0065] like Fig.10As shown, as another embodiment, the second limiting groove 423 includes a second horizontal groove 4231 extending horizontally and a second vertical groove 4232 extending downward from the second horizontal groove 4231 (the second vertical groove 4232 may extend vertically downward or obliquely downward), the second horizontal groove 4231 is connected to the guide groove 421, and the second vertical groove 4232 is connected to the second horizontal groove 4231. When the locking mechanism is in the unlocked state, the operating portion 43 can be moved from the guide groove 421 through the second horizontal groove 4231 to the second vertical groove 4232, and then be restricted in the second vertical groove 4232.

[0066] like Fig.11 As shown in the figure, as another embodiment, the second limiting groove 423 includes a second inclined groove 4233 extending obliquely downward, and the second inclined groove 4233 is connected to the guide groove 421. When the locking mechanism is in the unlocked state, the operating part 43 can move from the guide groove 421 to the second inclined groove 4233 and then be restricted in the second inclined groove 4233. Of course, in other embodiments, the second limiting groove 423 can also be other forms of structures.

[0067] It should be noted that when the locking member 4 is arranged on the turntable 1, the structure of the first limiting groove 422 and the second limiting groove 423 on the guide cylinder 42 needs to be adjusted accordingly so that the operating part 43 can be maintained in the first limiting groove 422 or the second limiting groove 423 under the action of gravity.

[0068] Furthermore, in this embodiment, the number of the locking member 4 and the docking structure 5 are both one. In other embodiments, the number of the locking member 4 and the docking structure 5 can also be multiple; when the turntable 1 is locked, the multiple locking members 4 are locked with the multiple docking structures 5 one by one.

[0069] Furthermore, in the present embodiment, the entire locking member 4 is made of high-strength steel (eg, Q355B high-strength structural steel), so that the locking member 4 has good structural strength.

[0070] The embodiment of the present invention further provides a turntable rotation locking method based on the turntable rotation locking mechanism as described above, the turntable rotation locking method comprising:

[0071] When locking the turntable 1, first align the locking portion 41 with the docking structure 5 along the locking direction S1, and then drive the locking portion 41 to move along the locking direction S1 so that the locking portion 41 engages with the docking structure 5, thus completing the locking of the turntable 1;

[0072] When the turntable 1 is unlocked, the locking portion 41 is driven to move along the unlocking direction S2 so that the locking portion 41 is disengaged from the docking structure 5 , thereby completing the unlocking of the turntable 1 .

[0073] As an implementation mode, the locking portion 41 is aligned with the docking structure 5 along the locking direction S1 (in this embodiment, the locking portion 41 is aligned with the docking structure 5 up and down), specifically, the turntable 1 can be controlled to rotate a certain angle until the locking portion 41 is aligned with the docking structure 5 along the locking direction S1, and then the turntable 1 is controlled to stop rotating. For example, when the turntable rotation locking mechanism is applied to a rotary drilling rig, the mast column of the rotary drilling rig can be controlled to be aligned (that is, the mast column is rotated to the front of the vehicle body). Since the locking mechanism is installed corresponding to this working condition, when the mast column is aligned, the locking portion 41 and the docking structure 5 will also be aligned accordingly.

[0074] As an embodiment, the above-mentioned driving the locking part 41 to move along the locking direction S1 and driving the locking part 41 to move along the unlocking direction S2 can be achieved by manually driving the locking part 41 to move (i.e., the driving method described in the first embodiment) or by mechanically driving the locking part 41 to move (i.e., the driving method described in the second embodiment described below).

[0075] The embodiment of the present invention further provides an engineering equipment, including the above-mentioned rotary table rotation locking mechanism. The engineering equipment can be a rotary drilling rig or other equipment that needs to lock the rotary table 1 under certain working conditions.

[0076] The following takes the turntable rotation locking mechanism used in the rotary drilling rig as an example to specifically explain the working process of the turntable rotation locking mechanism:

[0077] (1) When the turntable 1 of the rotary drilling rig needs to be rotated, the operating part 43 is moved downward along the guide groove 421 to the bottom of the guide groove 421 and rests on the bottom wall of the guide groove 421. At this time, the pin shaft 411 is retracted into the guide cylinder 42 and disengaged from the pin hole 51 on the turntable 1. The turntable 1 can rotate horizontally relative to the lower frame 2 without interference.

[0078] (2) When the turntable 1 of the rotary drilling rig needs to be fixed (for example, when the rotary drilling rig is performing a drilling operation, the position of the turntable 1 needs to be fixed to ensure the accuracy and safety of the drilling), the operating part 43 is moved upward along the guide groove 421 to the top of the guide groove 421, and then the operating part 43 is horizontally rotated a certain angle so that the operating part 43 is restricted in the first limit groove 422. At this time, the top end of the pin shaft 411 extends out of the guide cylinder 42 and is inserted into the pin hole 51 on the turntable 1, thereby locking the turntable 1. At this time, the turntable 1 cannot rotate relative to the lower frame 2.

[0079] The turntable rotation locking mechanism provided in this embodiment is not only easy to operate, but also does not need to be disassembled and assembled each time when used. Moreover, when the turntable 1 is not locked, the locking mechanism does not need to be removed and stored separately, thereby preventing the locking mechanism from being lost. At the same time, the locking mechanism has a simple structure, low manufacturing and maintenance costs, and high stability and safety in use.

[0080] Second embodiment

[0081] like Fig.12 As shown, the turntable rotation locking mechanism provided by the second embodiment of the present invention is substantially the same as that of the first embodiment, except that the structure of the locking member 4 is different and the driving method is different.

[0082] Specifically, in this embodiment, the locking member 4 further includes a driving device 45, and the driving device 45 is fixed to the first one; specifically, the driving device 45 is fixed to the lower frame 2 (of course, in other embodiments, when the locking member 4 is disposed on the turntable 1, the driving device 45 is fixed to the turntable 1). The driving device 45 is connected to the locking portion 41, and the driving device 45 is used to drive the locking portion 41 to move along the locking direction S1 and the unlocking direction S2, so that the locking portion 41 is engaged with or disengaged from the docking structure 5.

[0083] Specifically, in this embodiment, the driving device 45 can be a linear driving mechanism such as an electric cylinder, a pneumatic cylinder, an oil cylinder, a linear guide module, a gear rack module, etc. The docking structure 5 is a pin hole 51 provided on the turntable 1, the locking portion 41 is a pin shaft 411 plugged into the pin hole 51, and the driving device 45 is connected to the pin shaft 411. When the driving device 45 drives the pin shaft 411 to move along the locking direction S1, the pin shaft 411 can be plugged into the pin hole 51, thereby locking the turntable 1; when the driving device 45 drives the pin shaft 411 to move along the unlocking direction S2, the pin shaft 411 can be disengaged from the pin hole 51, thereby unlocking the turntable 1. At the same time, since the driving device 45 itself has a self-locking function (i.e., a position limiting function), the driving device 45 can automatically keep the pin shaft 411 in the locked position or the unlocked position, without the need to use other components or structures to keep the position of the pin shaft 411.

[0084] Furthermore, if Fig.12As shown, in this embodiment, the locking member 4 also includes a support frame 46, and the support frame 46 is fixed to the first one (lower frame 2), and can be fixed by welding, screwing, etc.; the locking portion 41 is slidably connected to the support frame 46, that is, the locking portion 41 can slide relative to the support frame 46 along the locking direction S1 and the unlocking direction S2. Since after the locking mechanism locks the turntable 1, the locking portion 41 will be more subjected to the horizontal shear force of the turntable 1, by providing the support frame 46, the support frame 46 can support the locking portion 41, and the force received by the locking portion 41 can be transmitted to the lower frame 2 through the support frame 46, reducing the force received by the driving device 45, thereby reducing or avoiding damage to the driving device 45 (if the support frame 46 is not provided, the force received by the locking portion 41 will be fully applied to the driving device 45, which is easy to cause damage to the driving device 45).

[0085] Furthermore, if Fig.12 As shown, in this embodiment, the support frame 46 is provided with a through hole 460 for the locking portion 41 to pass through, and the locking portion 41 is slidably connected to the inner wall of the through hole 460. The support frame 46 is a tubular structure (specifically, a cylindrical structure), and the support frame 46 covers the driving device 45, thereby providing a shielding protection for the driving device 45. Of course, in other embodiments, the support frame 46 can also be in other structural forms.

[0086] Furthermore, if Fig.12 As shown, in this embodiment, a linear bearing 47 is provided in the through hole 460, the linear bearing 47 is fixed to the support frame 46, the locking portion 41 passes through the linear bearing 47, and the locking portion 41 is slidably connected to the linear bearing 47. The linear bearing 47 can guide the telescopic movement of the locking portion 41 and reduce the friction resistance and wear of the locking portion 41 when moving.

[0087] Furthermore, in this embodiment, the turntable rotation locking mechanism also includes a control unit (not shown) and a switching device (not shown), and the control unit is connected to the driving device 45 and the switching device respectively; the control unit is used to control the telescopic movement of the driving device 45 after receiving the instruction of the switching device, thereby controlling the extension or retraction of the locking portion 41, and then locking or unlocking the locking mechanism (that is, the switching device can control the locking mechanism to switch between the locked state and the unlocked state). The control unit can be the original control device of the rotary drilling rig, or it can be an additional control device; the switching device can be a control element such as a button, a knob, or an instrument arranged in the cab of the rotary drilling rig.

[0088] The other structures and working principles of this embodiment are the same or similar to those of the first embodiment and are not described in detail here.

[0089] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A turntable rotation locking mechanism, characterized in that: The invention comprises a turntable (1), a lower frame (2) and a locking mechanism, wherein the turntable (1) is rotatably arranged on the lower frame (2); the locking mechanism comprises a locking member (4) and a docking structure (5), wherein the locking member (4) is arranged on the first one of the turntable (1) and the lower frame (2), and the docking structure (5) is arranged on the second one of the turntable (1) and the lower frame (2); the locking member (4) comprises a locking portion (41) matched with the docking structure (5); The locking portion (41) has opposite locking directions (S1) and unlocking directions (S2), and the locking portion (41) is movable along the locking direction (S1) and the unlocking direction (S2); When the locking portion (41) moves along the locking direction (S1), the locking portion (41) can engage with the docking structure (5) to limit the rotation of the turntable (1) relative to the lower frame (2); when the locking portion (41) moves along the unlocking direction (S2), the locking portion (41) can disengage from the docking structure (5).

2. The turntable rotation locking mechanism according to claim 1, characterized in that: The docking structure (5) is a pin hole (51) provided on the second one, and the locking portion (41) is a pin shaft (411) plugged into and matched with the pin hole (51); When the pin shaft (411) moves along the locking direction (S1), the pin shaft (411) can be inserted into the pin hole (51); when the pin shaft (411) moves along the unlocking direction (S2), the pin shaft (411) can be disengaged from the pin hole (51).

3. The turntable rotation locking mechanism according to claim 1 or 2, characterized in that: The locking member (4) further comprises a guide cylinder (42), wherein the guide cylinder (42) is fixed to the first member; the locking portion (41) is arranged in the guide cylinder (42), and the locking portion (41) can be telescopically moved along the axial direction of the guide cylinder (42); The locking mechanism has a locking state and an unlocking state; when the locking mechanism is in the locking state, part of the locking portion (41) extends out of the guide tube (42) and engages with the docking structure (5); when the locking mechanism is in the unlocking state, the locking portion (41) retracts into the guide tube (42) and disengages from the docking structure (5).

4. The turntable rotation locking mechanism according to claim 3, characterized in that: A guide groove (421) is provided on the side wall of the guide cylinder (42), and the guide groove (421) extends along the axial direction of the guide cylinder (42); an operating portion (43) is fixedly provided on the locking portion (41), and the operating portion (43) extends out of the guide cylinder (42) through the guide groove (421); when the operating portion (43) is manipulated to move along the guide groove (421), the locking portion (41) can move along the axial direction of the guide cylinder (42).

5. The turntable rotation locking mechanism according to claim 4, characterized in that: A first limiting groove (422) is also provided on the side wall of the guide cylinder (42), and the first limiting groove (422) is communicated with the guide groove (421); when the locking mechanism is in a locked state, the operating portion (43) can be restricted in the first limiting groove (422) after moving into the first limiting groove (422); And / or, a second limiting groove (423) is further provided on the side wall of the guide cylinder (42), and the second limiting groove (423) is connected to the guide groove (421); when the locking mechanism is in an unlocked state, the operating part (43) can be restricted in the second limiting groove (423) after moving into the second limiting groove (423).

6. The turntable rotation locking mechanism according to claim 5, characterized in that: The first limiting groove (422) comprises a first transverse groove (4221) extending horizontally and a first vertical groove (4222) extending downward from the first transverse groove (4221), the first transverse groove (4221) being connected to the guide groove (421), and the first vertical groove (4222) being connected to the first transverse groove (4221); when the locking mechanism is in a locked state, the operating portion (43) can be moved into the first vertical groove (4222) through the first transverse groove (4221) and then be restricted in the first vertical groove (4222); Alternatively, the first limiting groove (422) includes a first inclined groove (4223) extending obliquely; when the locking mechanism is in a locked state, the operating portion (43) can be restricted in the first inclined groove (4223) after moving into the first inclined groove (4223).

7. The turntable rotation locking mechanism according to claim 1 or 2, characterized in that: The locking member (4) further comprises a driving device (45), wherein the driving device (45) is fixed to the first member; the driving device (45) is connected to the locking portion (41), and the driving device (45) is used to drive the locking portion (41) to move along the locking direction (S1) and the unlocking direction (S2).

8. The turntable rotation locking mechanism according to claim 7, characterized in that: The locking member (4) further comprises a support frame (46), the support frame (46) being fixed to the first one, and the locking portion (41) being slidably connected to the support frame (46).

9. A turntable rotation locking method based on the turntable rotation locking mechanism according to any one of claims 1 to 8, characterized in that: The turntable rotation locking method comprises: When locking the turntable (1), the locking portion (41) is first aligned with the docking structure (5) along a locking direction (S1), and then the locking portion (41) is driven to move along the locking direction (S1) so that the locking portion (41) is engaged with the docking structure (5), thereby completing the locking of the turntable (1); When the turntable (1) is unlocked, the locking portion (41) is driven to move along the unlocking direction (S2), so that the locking portion (41) is disengaged from the docking structure (5), thereby completing the unlocking of the turntable (1).

10. An engineering equipment, characterized in that: It comprises a turntable rotation locking mechanism as claimed in any one of claims 1 to 8.

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