Hydraulic elastic open type anti-loose clamping mechanism for automatic drilling machine

Abstract

The utility model discloses a hydraulic elastic open type anti-loose clamping mechanism for an automatic drilling machine. The hydraulic elastic open type anti-loose clamping mechanism comprises a bottom plate, a clamping device and a clamping shackle device. The clamp holder comprises a first clamp holder mounting plate, a second clamp holder mounting plate and the like; the clamping shackle device comprises a first clamping shackle device connecting plate, a second clamping shackle device connecting plate and the like; a first nut mounting groove is formed in the first clamp holder welding body, the first oil cylinder short mounting bolt and the first oil cylinder long mounting bolt are further sleeved with self-locking gaskets, pressing plates are mounted on the first clamp holder mounting plate and the second clamp holder mounting plate, and set screws are mounted in set screw mounting grooves. The relative position of the hexagonal slotted nut is fixed through a cotter pin; according to the utility model, the loosening of the oil cylinder screw under vibration and impact load can be effectively prevented, the reliability of the hydraulic elastic open type compact clamping mechanism is improved, even if the screw is broken, the screw can be quickly replaced, the drilling efficiency is ensured, and the automatic and intelligent propulsion of a coal mine drilling machine is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to a drilling rig technical field, concretely relates to a hydraulic loose type open type anti-loose clamping mechanism for automatic drilling rig. BACKGROUND

[0002] The current drilling and excavating equipment with higher automation degree commonly adopts the hydraulic loose type open type clamping mechanism, the mechanism adopts the way of two-end oil pressure clamping and hydraulic loosening, has the characteristics of large opening amount and can realize the top opening. However, in order to be as compact as possible in structure and small in size, the conventional hydraulic loose type clamping mechanism generally threads on the clamping mechanism welded body, connects the clamping cylinder and the clamping mechanism welded body through a screw, in the drilling process, due to the simple structure of the clamping mechanism, complex stress, large clamping pressure, high use frequency, and vibration and impact load when loosening and clamping the drill rod each time, the clamping mechanism cylinder screw on both sides is loosened or broken frequently, the drill rod is not clamped tightly, the buckle cannot be normally unloaded, and the drilling rig is forced to stop. At the same time, according to the field use feedback, the bolt loosening or breaking is not easy to be perceived, and even the bolt may fly to both sides suddenly, which seriously affects the production safety. In addition, once the screw is broken, it is difficult to take out the broken screw inside the thread of the clamping mechanism welded body, which causes great inconvenience to the downhole maintenance. These problems seriously restrict the production efficiency, and directly affect the popularization of the automatic drilling rig. Therefore, how to improve the reliability of the clamping mechanism under vibration and impact load becomes a bottleneck problem in the application and popularization of the automatic drilling rig. SUMMARY

[0003] In view of the defects in the prior art, the utility model aims at providing a hydraulic loose type open type anti-loose clamping mechanism for automatic drilling rig, solving the problem that the screw of the clamping mechanism in the prior art is easy to be loosened or broken frequently and seriously affects the production safety.

[0004] In order to solve the above technical problems, the utility model adopts the following technical scheme: a hydraulic loose type open type anti-loose clamping mechanism for automatic drilling rig, a bottom plate, a clamp and a clamp buckle remover installed side by side on the bottom plate.

[0005] The clamp comprises a pair of first clamp mounting plates and second clamp mounting plates installed in parallel on the bottom plate, and first clamp welded bodies and second clamp welded bodies installed between the first clamp mounting plates and the second clamp mounting plates.

[0006] The clamp further comprises first clamping pieces installed on the first clamp welded bodies through first cylinder mounting bolts and second clamping pieces installed on the second clamp welded bodies through first cylinder mounting bolts.

[0007] The clamping shackle device comprises a first clamping shackle connecting plate and a second clamping shackle connecting plate which are installed in parallel on the base plate.

[0008] The clamping shackle device further comprises a first clamping shackle mounting plate and a second clamping shackle mounting plate which are installed in parallel on the base plate, and a first clamping shackle welding body and a second clamping shackle welding body which are installed between the first clamping shackle mounting plate and the second clamping shackle mounting plate.

[0009] The clamping shackle device further comprises a first clamping shackle piece installed on the first clamping shackle welding body through a second oil cylinder installation bolt and a second clamping shackle piece installed on the second clamping shackle welding body through a second oil cylinder installation bolt.

[0010] The first oil cylinder installation bolt comprises a first oil cylinder short installation bolt and a first oil cylinder long installation bolt, the first oil cylinder short installation bolt is used for fixing the first clamping piece and the first clamping device welding body and the second clamping piece and the second clamping device welding body, and the first oil cylinder long installation bolt penetrates through the first clamping device welding body and the second clamping device welding body to fix the first clamping piece, the first clamping device welding body, the second clamping piece and the second clamping device welding body.

[0011] The first clamping device welding body is provided with a first nut installation slot on the side facing the second clamping device welding body, and the width of the nut of the first oil cylinder short installation bolt is the same as the width of the first nut installation slot and is located in the first nut installation slot.

[0012] The second clamping device welding body is provided with a second nut installation slot on the side facing the first clamping device welding body, and the width of the nut of the first oil cylinder short installation bolt is the same as the width of the second nut installation slot and is located in the second nut installation slot.

[0013] The first oil cylinder short installation bolt and the first oil cylinder long installation bolt are further sleeved with a self-locking washer.

[0014] The first clamping device mounting plate and the second clamping device mounting plate are further respectively provided with a pressing plate at both ends in the length direction, and the pressing plate is in contact with the first oil cylinder short installation bolt.

[0015] The first clamping piece and the second clamping piece are further provided with a tight bolt installation slot, and a tight bolt is installed in the tight bolt installation slot, and the tight bolt is used for fixing the relative position of the first oil cylinder short installation bolt.

[0016] The first oil cylinder long installation bolt is installed with a hexagonal slotted nut, and the hexagonal slotted nut fixes the relative position through a split pin.

[0017] The connection and installation relationship of the first clamping shackle mounting plate, the second clamping shackle mounting plate, the first clamping shackle welded body, the second clamping shackle welded body, the first clamping shackle component, and the second clamping shackle component is the same as the installation relationship of the corresponding components in the clamp.

[0018] This utility model also has the following technical features:

[0019] The first clamping component includes a first clamping cylinder mounted on the welded body of the first clamping device via a short mounting bolt, and a first clamping device slip mounted on the first clamping cylinder. The first clamping device slip is connected to the first clamping cylinder via a slip connecting seat.

[0020] The first clamping cylinder is connected to the slip connecting seat by a pin, and the slip connecting seat is connected to the first clamping slip by bolts.

[0021] The second clamping component includes a second clamping cylinder mounted on the welded body of the second clamper via a short mounting bolt of the first cylinder, and a second clamping slip mounted on the second clamping cylinder. The second clamping slip is connected to the second clamping cylinder via a slip connecting seat.

[0022] The second clamping cylinder is connected to the slip connecting seat by a pin, and the slip connecting seat is connected to the second clamping slip by bolts.

[0023] The fastener screw mounting slots are formed on the first clamping cylinder and the second clamping cylinder.

[0024] A drill pipe clamping cavity is formed between the first clamp slip and the second clamp slip.

[0025] Both the first clamping plate and the second clamping plate are provided with drill rod clamping grooves, and the drill rod clamping cavity and the drill rod clamping groove are arranged coaxially.

[0026] The first clamping shackle mounting plate is rotatably connected to the first clamping shackle connecting plate, and the second clamping shackle mounting plate is rotatably connected to the second clamping shackle connecting plate.

[0027] A tilting cylinder is also hinged to one side of the first clamping shackle mounting plate and the second clamping shackle mounting plate.

[0028] The first clamping and unslipping component includes a first clamping and unslipping cylinder mounted on the first clamping and unslipping welded body via a second cylinder mounting bolt and a first clamping and unslipping slip mounted on the first clamping and unslipping cylinder. The second clamping and unslipping component includes a second clamping and unslipping cylinder mounted on the second clamping and unslipping welded body via a second cylinder mounting bolt and a second clamping and unslipping slip mounted on the second clamping and unslipping cylinder.

[0029] The first clamping shackle slip is connected to the first clamping shackle cylinder via a slip connector, and the second clamping shackle slip is connected to the second clamping shackle cylinder via a slip connector.

[0030] A drill pipe clamping and uncoupling cavity is formed between the first clamping and uncoupling slip and the second clamping and uncoupling slip.

[0031] The first clamping shackle connecting plate and the second clamping shackle connecting plate are provided with a first through hole, and the first clamping shackle mounting plate and the second clamping shackle mounting plate are provided with a second through hole.

[0032] The first through hole, the second through hole, the drill rod clamping and uncoupling cavity, and the drill rod clamping cavity are arranged coaxially.

[0033] A fixing plate mounting block is respectively installed on the top of the first clamping shackle connecting plate and the second clamping shackle connecting plate, and a fixing plate is also installed on the fixing plate mounting block.

[0034] The first clamping shackle mounting plate and the second clamping shackle mounting plate are respectively connected to a first extension section and a second extension section on the same side. A tilting cylinder mounting shaft is connected between the first extension section and the second extension section. The tilting cylinder is hinged to the tilting cylinder mounting shaft.

[0035] Compared with the prior art, this utility model has the following technical effects:

[0036] (I) The hydraulic loosening and tightening type open anti-loosening clamping mechanism for automated drilling rigs provided by this utility model can not only effectively prevent the cylinder screws from loosening under vibration and impact loads, and improve the reliability of the hydraulic loosening and tightening type open compact clamping mechanism itself, but also can be quickly replaced even if the screws break, ensuring drilling efficiency and promoting the automation and intelligence of coal mine drilling rigs.

[0037] (II) The present invention provides a hydraulic loosening and tightening type open anti-loosening clamping mechanism for automated drilling rigs, which has a simple structure, convenient operation, safety and reliability and strong adaptability. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the overall structure of an automated drilling rig hydraulic loosening and tightening type open anti-loosening clamping mechanism according to the present invention.

[0039] Figure 2 This is a schematic diagram of the clamping device structure of this utility model.

[0040] Figure 3 This is a schematic diagram of the clamp of this utility model without the first clamp mounting plate.

[0041] Figure 4This is a cross-sectional view of the clamping device of this utility model.

[0042] Figure 5 This is a cross-sectional view of the clamping and unhooking device of this utility model.

[0043] The meanings of the labels in the attached diagram are as follows:

[0044] 1-Base plate, 2-Clamper, 3-Clamping unscrewer.

[0045] 2-1-First clamp mounting plate, 2-2-Second clamp mounting plate, 2-3-First clamp welded body, 2-4-Second clamp welded body, 2-5-First clamping component, 2-6-Second clamping component, 2-7-First nut mounting slot, 2-8-Second nut mounting slot, 2-9-Self-locking washer, 2-10-Pressure plate, 2-11-Set screw, 2-12-Hexagonal slotted nut, 2-13-Cocker pin.

[0046] 3-1-First clamping shackle connecting plate, 3-2-Second clamping shackle connecting plate, 3-3-First clamping shackle mounting plate, 3-4-Second clamping shackle mounting plate, 3-5-First clamping shackle welded body, 3-6-Second clamping shackle welded body, 3-7-First clamping shackle component, 3-8-Second clamping shackle component, 3-9-Tilting cylinder, 3-10-First through hole, 3-11-Second through hole, 3-12-Fixed plate mounting block, 3-13-Fixed plate, 3-14-First extension section, 3-15-Second extension section, 3-16-Tilting cylinder mounting shaft.

[0047] 2-5-1-First clamping cylinder, 2-5-2-First clamping slip, 2-6-1-Second clamping cylinder, 2-6-2-Second clamping slip.

[0048] 3-7-1-First clamping shackle cylinder, 3-7-2-First clamping shackle slip, 3-8-1-Second clamping shackle cylinder, 3-8-2-Second clamping shackle slip.

[0049] The specific content of this utility model will be further explained in detail below with reference to the embodiments. Detailed Implementation

[0050] Unless otherwise specified, all components in this invention are made from components known in the prior art.

[0051] The following are specific embodiments of the present invention. It should be noted that the present invention is not limited to the following specific embodiments. All equivalent modifications made based on the technical solutions of this application fall within the protection scope of the present invention.

[0052] Example 1:

[0053] This embodiment provides a hydraulically adjustable open-type anti-loosening clamping mechanism for automated drilling rigs, such as... Figures 1-5 As shown, it includes a base plate 1 and a clamp 2 and a clamping unhooker 3 mounted side by side on the base plate 1, wherein the base plate 1 is fixed to the feed body of the drilling rig by bottom bolts.

[0054] The clamp 2 includes a pair of first clamp mounting plates 2-1 and second clamp mounting plates 2-2 mounted in parallel on the base plate 1, and a first clamp welding body 2-3 and a second clamp welding body 2-4 mounted between the first clamp mounting plates 2-1 and the second clamp mounting plates 2-2.

[0055] The first clamp mounting plate 2-1 and the second clamp mounting plate 2-2 are welded onto the base plate 1.

[0056] The clamp 2 further includes a first clamping member 2-5 mounted on the first clamping member welded body 2-3 by a first hydraulic cylinder mounting bolt, and a second clamping member 2-6 mounted on the second clamping member welded body 2-4 by a first hydraulic cylinder mounting bolt.

[0057] The clamping and unscrewing device 3 includes a first clamping and unscrewing device connecting plate 3-1 and a second clamping and unscrewing device connecting plate 3-2, which are mounted in parallel on the base plate 1.

[0058] The first clamping and unscrewing device connecting plate 3-1 and the second clamping and unscrewing device connecting plate 3-2 are welded onto the base plate 1.

[0059] It also includes a pair of first clamping shackle mounting plates 3-3 and second clamping shackle mounting plates 3-4 mounted in parallel on the base plate 1, and a first clamping shackle welded body 3-5 and a second clamping shackle welded body 3-6 installed between the first clamping shackle mounting plates 3-3 and second clamping shackle mounting plates 3-4.

[0060] The first clamping shackle welding body 3-5 and the second clamping shackle welding body 3-6 are welded onto the base plate 1.

[0061] The clamping and unhooking device 3 further includes a first clamping and unhooking component 3-7 mounted on the first clamping and unhooking welded body 3-5 by a second cylinder mounting bolt, and a second clamping and unhooking component 3-8 mounted on the second clamping and unhooking welded body 3-6 by a second cylinder mounting bolt.

[0062] The first cylinder mounting bolt includes a short mounting bolt and a long mounting bolt. The short mounting bolt is used to fix the first clamping member 2-5 to the first clamping welded body 2-3, and the second clamping member 2-6 to the second clamping welded body 2-4. The long mounting bolt passes through the first clamping welded body 2-3 and the second clamping welded body 2-4 to fix the first clamping member 2-5, the first clamping welded body 2-3, the second clamping member 2-6, and the second clamping welded body 2-4.

[0063] The second cylinder mounting bolt includes a short mounting bolt and a long mounting bolt. The short mounting bolt is used to fix the first clamping shackle 3-7 and the first clamping shackle welded body 3-5, as well as the second clamping shackle 3-8 and the second clamping shackle welded body 3-6. The long mounting bolt passes through the first clamping shackle welded body 3-5 and the second clamping shackle welded body 3-6 to fix the first clamping shackle 3-7, the first clamping shackle welded body 3-5, the second clamping shackle 3-8, and the second clamping shackle welded body 3-6.

[0064] The first clamp welding body 2-3 is provided with a first nut mounting groove 2-7 on the side facing the second clamp welding body 2-4. The width of the nut of the first cylinder short mounting bolt is the same as the width of the first nut mounting groove 2-7 and is located in the first nut mounting groove 2-7.

[0065] The second clamp welding body 2-4 is provided with a second nut mounting groove 2-8 on the side facing the first clamp welding body 2-3. The width of the nut of the first cylinder short mounting bolt is the same as the width of the second nut mounting groove 2-8 and is located in the second nut mounting groove 2-8.

[0066] Self-locking washers 2-9 are also fitted onto the short mounting bolt and the long mounting bolt of the first hydraulic cylinder.

[0067] In this embodiment, one screw uses a set (2) of self-locking washers 2-9.

[0068] Pressure plates 2-10 are respectively installed at both ends of the first clamp mounting plate 2-1 and the second clamp mounting plate 2-2 along the length direction, and the pressure plates 2-10 are in contact with the short mounting bolts of the first oil cylinder.

[0069] The first clamping member 2-5 and the second clamping member 2-6 are also provided with fastening screw mounting grooves, and set screws 2-11 are installed in the fastening screw mounting grooves. The set screws 2-11 are used to fix the relative position of the cylinder mounting bolts.

[0070] The first clamp welding body 2-3 and the second clamp welding body 2-4 are connected by a first hydraulic cylinder long mounting bolt. A hexagonal slotted nut 2-12 is installed on the first hydraulic cylinder long mounting bolt, and the relative position of the hexagonal slotted nut 2-12 is fixed by a cotter pin 2-13.

[0071] The nut side of the short mounting bolt for the first hydraulic cylinder mainly adopts a double anti-loosening method, which uses a slot to tighten the nut and matches a self-locking washer.

[0072] A pressure plate is installed on the outer side of the bolt head of the short mounting bolt of the first hydraulic cylinder, using a triple anti-loosening method that restricts axial rotation with a self-locking washer and a set screw.

[0073] The first hydraulic cylinder's long mounting bolts are secured using a combination of bolts, self-locking washers, hexagonal slotted nuts, and cotter pins to prevent loosening.

[0074] Even if the screws become slightly loose due to long-term vibration, since the screws are installed through holes, there is no possibility of broken screws becoming embedded in the welded body of the clamp and being unable to be removed, thus facilitating maintenance and disassembly.

[0075] The anti-loosening method for the mounting bolts of the second hydraulic cylinder is the same as that for the mounting bolts of the first hydraulic cylinder.

[0076] This invention not only effectively prevents the cylinder screws from loosening under vibration and impact loads, improving the reliability of the hydraulic tightening and loosening open compact clamping mechanism, but also allows for quick replacement even if the screws break, ensuring drilling efficiency and facilitating the automation and intelligentization of coal mine drilling rigs.

[0077] The connection and installation relationship of the first clamping shackle mounting plate 3-3, the second clamping shackle mounting plate 3-4, the first clamping shackle welded body 3-5, the second clamping shackle welded body 3-6, the first clamping shackle component 3-7, and the second clamping shackle component 3-8 is the same as the installation relationship of the corresponding components in the clamp 2.

[0078] A third nut mounting groove is provided on the first clamping shackle welding body 3-5 facing the second clamping shackle welding body 3-6. The width of the nut of the second cylinder short mounting bolt is the same as the width of the third nut mounting groove and is located in the third nut mounting groove.

[0079] The second clamping shackle welding body 3-6 has a fourth nut mounting groove on the side facing the first clamping shackle welding body 3-5. The width of the nut of the second cylinder short mounting bolt is the same as the width of the fourth nut mounting groove and is located in the fourth nut mounting groove.

[0080] The short mounting bolt and the long mounting bolt of the second cylinder are also fitted with self-locking washers.

[0081] The first clamping shackle mounting plate 3-3 and the second clamping shackle mounting plate 3-4 are respectively equipped with pressure plates at both ends along the length direction, and the pressure plates are in contact with the short mounting bolts of the second hydraulic cylinder.

[0082] The first clamping shackle 3-7 and the second clamping shackle 3-8 are also provided with fastening screw mounting grooves, and set screws are installed in the fastening screw mounting grooves. The set screws are used to fix the relative position of the short mounting bolt of the second hydraulic cylinder.

[0083] The second cylinder is mounted on a long mounting bolt with a hexagonal slotted nut, which is fixed in position by a cotter pin; the anti-loosening method of the clamping shackle 3 is exactly the same as that of the clamping device 2.

[0084] As a preferred embodiment:

[0085] The first clamping member 2-5 includes a first clamping cylinder 2-5-1 mounted on the first clamper welded body 2-3 via a first cylinder short mounting bolt, and a first clamper slip 2-5-2 mounted on the first clamping cylinder 2-5-1, such as... Figure 4 As shown, the first clamping slip 2-5-2 is connected to the first clamping cylinder 2-5-1 via a slip connecting seat.

[0086] The first clamping cylinder 2-5-1 is connected to the slip connecting seat by a pin, and the slip connecting seat is connected to the first clamping slip 2-5-2 by bolts.

[0087] The second clamping member 2-6 includes a second clamping cylinder 2-6-1 mounted on the second clamper welded body 2-4 via a first cylinder short mounting bolt, and a second clamping slip 2-6-2 mounted on the second clamping cylinder 2-6-1. For example... Figure 4 As shown, the second clamping slip 2-6-2 is connected to the second clamping cylinder 2-6-1 via a slip connecting seat.

[0088] The second clamping cylinder 2-6-1 is connected to the slip connecting seat by a pin, and the slip connecting seat is connected to the second clamping slip 2-6-2 by bolts.

[0089] The bottoms of the first clamping cylinder 2-5-1 and the second clamping cylinder 2-6-1 are fixed by the long mounting bolt of the first cylinder.

[0090] The fastener screw mounting slots are formed on the first clamping cylinder 2-5-1 and the second clamping cylinder 2-6-1.

[0091] A drill pipe clamping cavity is formed between the first clamping slip 2-5-2 and the second clamping slip 2-6-2.

[0092] Both the first clamping plate 2-1 and the second clamping plate 2-2 are provided with drill rod clamping grooves, and the drill rod clamping cavity and the drill rod clamping groove are arranged coaxially.

[0093] During clamping, the drill pipe passes through the drill pipe clamping groove and the drill pipe clamping cavity, and is clamped by the first clamping slip 2-5-2 and the second clamping slip 2-6-2.

[0094] As a preferred embodiment:

[0095] The first clamping shackle mounting plate 3-3 is rotatably connected to the first clamping shackle connecting plate 3-1, and the second clamping shackle mounting plate 3-4 is rotatably connected to the second clamping shackle connecting plate 3-2.

[0096] The first clamping shackle mounting plate 3-3 and the second clamping shackle mounting plate 3-4 are also hinged to one side with a tilting cylinder 3-9; the tilting cylinder 3-9 is used to adjust the rotation of the first clamping shackle mounting plate 3-3 and the second clamping shackle mounting plate 3-4.

[0097] As a preferred embodiment:

[0098] The first clamping and shackle component 3-7 includes a first clamping and shackle cylinder 3-7-1 mounted on the first clamping and shackle welded body 3-5 via a second cylinder short mounting bolt, and a first clamping and shackle slip 3-7-2 mounted on the first clamping and shackle cylinder 3-7-1; as Figure 5 As shown, the first clamping shackle cylinder 3-7-1 is connected to the slip connecting seat by a pin, and the slip connecting seat is connected to the first clamping shackle slip 3-7-2 by bolts.

[0099] The second clamping shackle component 3-8 includes a second clamping shackle cylinder 3-8-1 mounted on the second clamping shackle welded body 3-6 via a second cylinder short mounting bolt, and a second clamping shackle slip 3-8-2 mounted on the second clamping shackle cylinder 3-8-1; the second clamping shackle cylinder 3-8-1 is connected to the slip connecting seat by a pin, and the slip connecting seat is connected to the second clamping shackle slip 3-8-2 by bolts.

[0100] The bottoms of the first clamping shackle cylinder 3-7-1 and the second clamping shackle cylinder 3-8-1 are fixed by the second cylinder long mounting bolt.

[0101] The fastener screw mounting slots are formed on the first clamping shackle cylinder 3-7-1 and the second clamping shackle cylinder 3-8-1.

[0102] The first clamping and uncoupling slip 3-7-2 and the second clamping and uncoupling slip 3-8-2 form a drill pipe clamping and uncoupling cavity.

[0103] The first clamping shackle connecting plate 3-1 and the second clamping shackle connecting plate 3-2 are provided with a first through hole 3-10, and the first clamping shackle mounting plate 3-3 and the second clamping shackle mounting plate 3-4 are provided with a second through hole 3-11.

[0104] The first through hole 3-10, the second through hole 3-11, the drill rod clamping and uncoupling cavity, and the drill rod clamping cavity are arranged coaxially.

[0105] During uncoupling, the drill rod passes through the first through hole 3-10, the drill rod clamping uncoupling cavity, and the second through hole 3-11, and is clamped by the first clamping uncoupling slip 3-7-2 and the second clamping uncoupling slip 3-8-2 to perform uncoupling.

[0106] The slips are all connected to the hydraulic cylinder via slip seats.

[0107] As a preferred embodiment:

[0108] The first clamping shackle connecting plate 3-1 and the second clamping shackle connecting plate 3-2 are respectively equipped with a fixing plate mounting block 3-12 on their tops. The fixing plate mounting block 3-12 is also equipped with a fixing plate 3-13. Since the first clamping shackle connecting plate 3-1 and the second clamping shackle connecting plate 3-2 are only fixed at the bottom and left open at the top, the fixing plate 3-13 is mainly used to transmit axial force and prevent the first clamping shackle connecting plate 3-1 and the second clamping shackle connecting plate 3-2 from deforming.

[0109] As a preferred embodiment:

[0110] The first clamping shackle mounting plate 3-3 and the second clamping shackle mounting plate 3-4 are respectively connected to the first extension section 3-14 and the second extension section 3-15 on the same side. The first extension section 3-14 and the second extension section 3-15 are connected to the tilting cylinder mounting shaft 3-16. The tilting cylinder 3-9 is hinged to the tilting cylinder mounting shaft 3-16.

[0111] The specific working process of this utility model:

[0112] The following details the structure of the clamp as an example:

[0113] The first clamping cylinder 2-5-1 flange has two sets of cylinder mounting bolts, each matched with a self-locking washer and a standard nut, symmetrically installed on both sides of the first clamping device welded body 2-3. To make the clamping device structure compact and prevent the standard nuts from loosening, a first nut mounting groove 2-7 is opened at the nut mounting location on the upper row of the clamping device welded body. The groove width matches the nut width and is as small as possible so that the nut cannot rotate after being locked in.

[0114] When installing the upper cylinder mounting bolt, insert the self-locking washer and nut into the first nut mounting groove 2-7 in sequence and tighten the nut. Then, pass the other self-locking washer and cylinder mounting bolt through the flange through hole of the first clamping cylinder 2-5-1, the through hole of the first clamping welded body 2-3, the self-locking washer and the ordinary nut in sequence and tighten them.

[0115] After installing the cylinder mounting bolts, to prevent them from loosening, a pressure plate 2-10 is pressed onto the end face of the cylinder mounting bolts. The pressure plate 2-10 is screwed onto the first clamp mounting plate 2-1 and the second clamp mounting plate 2-2 to tighten the cylinder mounting bolts. This not only prevents the cylinder mounting bolts from loosening but also avoids the possibility of them breaking and flying out to both sides. Furthermore, after the pressure plate 2-10 is installed, the set screw 2-11 is passed through the flange of the first clamping cylinder 2-5-1 and tightened until its tip engages with the cylinder mounting bolt to prevent it from loosening. When the cylinder mounting bolts become slightly loose due to long-term vibration and need tightening, the pressure plate 2-10 does not need to be removed. The tool end can be passed through the pre-drilled hole in the pressure plate 2-10 and engaged in the screw slot to tighten the cylinder mounting bolt. Even if the cylinder mounting bolt breaks, since it is installed through a through hole, there is no risk of the broken screw becoming embedded in the welded body of the clamp, thus facilitating maintenance and disassembly.

[0116] The two sets of long mounting bolts for the first clamping cylinder 2-5-1 flange pass sequentially through the self-locking washer, the flange of the first clamping cylinder 2-5-1, the welded body 2-3 of the first clamping device, the flange of the second clamping cylinder 2-6-1 on the other side, the self-locking washer, the hexagonal slotted nut 2-12, and the cotter pin 2-13, fixing the cylinder to both sides of the welded body of the clamping device. Because the cotter pin is then passed through the through hole of the threaded end of the long screw and locked in the slot of the hexagonal slotted nut after tightening the hexagonal slotted nut, relative rotation between the hexagonal slotted nut and the long screw is prevented, thus achieving an anti-loosening effect. Even if the long screw breaks, it is extremely convenient to remove and replace it from one side.

[0117] The above technical solutions are only preferred embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be conceived by those skilled in the art without creative effort within the technical scope disclosed in this utility model are covered within the protection scope of this utility model.

Claims

1. A hydraulic tensioning type open anti-loosening clamping mechanism for an automated drilling rig, comprising a base plate (1) and a clamping device (2) and a clamping uncoupling device (3) mounted side by side on the base plate (1); The clamp (2) includes a pair of first clamp mounting plates (2-1) and second clamp mounting plates (2-2) mounted in parallel on the base plate (1), and a first clamp welding body (2-3) and a second clamp welding body (2-4) mounted between the first clamp mounting plate (2-1) and the second clamp mounting plate (2-2). The clamp (2) further includes a first clamping member (2-5) mounted on the first clamping member welded body (2-3) by the first cylinder mounting bolt and a second clamping member (2-6) mounted on the second clamping member welded body (2-4) by the first cylinder mounting bolt. The clamping and unscrewing device (3) includes a first clamping and unscrewing device connecting plate (3-1) and a second clamping and unscrewing device connecting plate (3-2) that are mounted in parallel on the base plate (1). The clamping shackle device (3) further includes a pair of first clamping shackle mounting plates (3-3) and second clamping shackle mounting plates (3-4) mounted parallel to each other on the base plate (1), and a first clamping shackle welding body (3-5) and a second clamping shackle welding body (3-6) mounted between the first clamping shackle mounting plate (3-3) and the second clamping shackle mounting plate (3-4); The clamping shackle device (3) further includes a first clamping shackle component (3-7) mounted on the first clamping shackle welded body (3-5) by a second hydraulic cylinder mounting bolt, and a second clamping shackle component (3-8) mounted on the second clamping shackle welded body (3-6) by a second hydraulic cylinder mounting bolt, characterized in that, The first cylinder mounting bolt includes a first cylinder short mounting bolt and a first cylinder long mounting bolt. The first cylinder short mounting bolt is used to fix the first clamping member (2-5) to the first clamping welded body (2-3), and the second clamping member (2-6) to the second clamping welded body (2-4). The first cylinder long mounting bolt passes through the first clamping welded body (2-3) and the second clamping welded body (2-4) to fix the first clamping member (2-5), the first clamping welded body (2-3), the second clamping member (2-6), and the second clamping welded body (2-4). The first clamp welding body (2-3) is provided with a first nut mounting groove (2-7) on the side facing the second clamp welding body (2-4). The width of the nut of the first cylinder short mounting bolt is the same as the width of the first nut mounting groove (2-7) and is located in the first nut mounting groove (2-7). The second clamp welding body (2-4) is provided with a second nut mounting groove (2-8) on the side facing the first clamp welding body (2-3). The width of the nut of the first cylinder short mounting bolt is the same as the width of the second nut mounting groove (2-8) and is located in the second nut mounting groove (2-8). Self-locking washers (2-9) are also fitted on the short mounting bolt and the long mounting bolt of the first cylinder. The first clamp mounting plate (2-1) and the second clamp mounting plate (2-2) are also equipped with pressure plates (2-10) at both ends along the length direction, and the pressure plates (2-10) are in contact with the short mounting bolts of the first hydraulic cylinder. The first clamping member (2-5) and the second clamping member (2-6) are also provided with fastening screw mounting grooves, and set screws (2-11) are installed in the fastening screw mounting grooves. The set screws (2-11) are used to fix the relative position of the short mounting bolts of the first hydraulic cylinder. A hexagonal slotted nut (2-12) is installed on the long mounting bolt of the first oil cylinder, and the hexagonal slotted nut (2-12) is fixed in relative position by a cotter pin (2-13); The connection and installation relationship of the first clamping shackle mounting plate (3-3), the second clamping shackle mounting plate (3-4), the first clamping shackle welded body (3-5), the second clamping shackle welded body (3-6), the first clamping shackle component (3-7), and the second clamping shackle component (3-8) is the same as the installation relationship of the corresponding components in the clamp (2).

2. The hydraulic tensioning type open anti-loosening clamping mechanism for automated drilling rigs as described in claim 1, characterized in that, The first clamping component (2-5) includes a first clamping cylinder (2-5-1) mounted on the first clamping welded body (2-3) via a first cylinder short mounting bolt, and a first clamping slip (2-5-2) mounted on the first clamping cylinder (2-5-1). The first clamping slip (2-5-2) is connected to the first clamping cylinder (2-5-1) via a slip connecting seat. The first clamping cylinder (2-5-1) is connected to the slip connecting seat by a pin, and the slip connecting seat is connected to the first clamping slip (2-5-2) by bolts; The second clamping component (2-6) includes a second clamping cylinder (2-6-1) mounted on the welded body (2-4) of the second clamper via a short mounting bolt of the first cylinder, and a second clamping slip (2-6-2) mounted on the second clamping cylinder (2-6-1). The second clamping slip (2-6-2) is connected to the second clamping cylinder (2-6-1) via a slip connecting seat. The second clamping cylinder (2-6-1) is connected to the slip connecting seat by a pin, and the slip connecting seat is connected to the second clamping slip (2-6-2) by bolts; The fastener screw mounting slots are formed on the first clamping cylinder (2-5-1) and the second clamping cylinder (2-6-1); A drill pipe clamping cavity is formed between the first clamping slip and the second clamping slip (2-6-2); Both the first clamping plate (2-1) and the second clamping plate (2-2) are provided with drill rod clamping grooves, and the drill rod clamping cavity and the drill rod clamping groove are arranged coaxially.

3. The hydraulic tensioning type open anti-loosening clamping mechanism for automated drilling rigs as described in claim 1, characterized in that, The first clamping shackle mounting plate (3-3) is rotatably connected to the first clamping shackle connecting plate (3-1), and the second clamping shackle mounting plate (3-4) is rotatably connected to the second clamping shackle connecting plate (3-2). The first clamping shackle mounting plate (3-3) and the second clamping shackle mounting plate (3-4) are also hinged to one side with a tilting cylinder (3-9).

4. The hydraulic tensioning type open anti-loosening clamping mechanism for automated drilling rigs as described in claim 2, characterized in that, The first clamping shackle component (3-7) includes a first clamping shackle cylinder (3-7-1) mounted on the first clamping shackle welded body (3-5) by a second cylinder mounting bolt and a first clamping shackle slip (3-7-2) mounted on the first clamping shackle cylinder (3-7-1). The second clamping shackle component (3-8) includes a second clamping shackle cylinder (3-8-1) mounted on the second clamping shackle welded body (3-6) by a second cylinder mounting bolt and a second clamping shackle slip (3-8-2) mounted on the second clamping shackle cylinder (3-8-1). The first clamping uncoupling slip (3-7-2) and the second clamping uncoupling slip (3-8-2) form a drill pipe clamping uncoupling cavity; The first clamping shackle connecting plate (3-1) and the second clamping shackle connecting plate (3-2) are provided with a first through hole (3-10), and the first clamping shackle mounting plate (3-3) and the second clamping shackle mounting plate (3-4) are provided with a second through hole (3-11). The first through hole (3-10), the second through hole (3-11), the drill rod clamping and unhooking cavity, and the drill rod clamping cavity are arranged coaxially.

5. The hydraulic tensioning type open anti-loosening clamping mechanism for automated drilling rigs as described in claim 1, characterized in that, The first clamping shackle connecting plate (3-1) and the second clamping shackle connecting plate (3-2) are respectively equipped with a fixing plate mounting block (3-12), and a fixing plate (3-13) is also installed on the fixing plate mounting block (3-12).

6. The hydraulic tensioning type open anti-loosening clamping mechanism for automated drilling rigs as described in claim 3, characterized in that, The first clamping shackle mounting plate (3-3) and the second clamping shackle mounting plate (3-4) are respectively connected to a first extension section (3-14) and a second extension section (3-15) on the same side. A tilting cylinder mounting shaft (3-16) is connected between the first extension section (3-14) and the second extension section (3-15). The tilting cylinder (3-9) is hinged to the tilting cylinder mounting shaft (3-16).

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