Connecting Structure between Curved Arm and Hydraulic Cylinder of a Hydraulic Clay Gun

Abstract

The present invention provides a connecting structure between a crank arm and a hydraulic cylinder of a hydraulic clay gun, belonging to the technical field of blast furnace metallurgy ironmaking. It includes a docking seat rotatably arranged at the end of the crank arm. Bases are fixedly connected to the side wall of the docking seat and the movable end of the hydraulic cylinder respectively. A docking adjustment member is arranged on the side wall of the base, and a two-way plug-in member is arranged at the movable end of the docking adjustment member. The positions of the two two-way plug-in members are adjusted through the docking adjustment members on the two bases, so as to adjust the position difference when the docking seat is connected to the movable end of the hydraulic cylinder, ensuring the accuracy of the connection position of the two two-way plug-in members. A two-way telescopic member composed of a sleeve and two traction columns is used to traction the cylinder body part of the hydraulic cylinder. At the same time, a frame body composed of an elastic telescopic member and a support inner arm improves the stability of the sleeve, thereby increasing the traction force of the cylinder body part of the hydraulic cylinder.

Description

Technical Field

[0001] The present invention relates to the technical field of blast furnace metallurgical ironmaking, and specifically to a connecting structure between a crank arm and a hydraulic cylinder of a hydraulic clay gun. Background Art

[0002] A hydraulic clay gun is an essential front-of-furnace equipment in the smelting industry, used to quickly and accurately block the tapping hole after tapping, enabling the blast furnace to quickly enter the next cycle of operation. Compared with mechanical clay guns, hydraulic clay guns have the characteristics of light weight, simple structure, stable operation, reliable performance, high efficiency, convenient operation, and low price, and are ideal front-of-furnace equipment for large, medium, and small ironmaking plants. In the structure of a hydraulic clay gun, the hydraulic cylinder is connected to the two side plates of the crank arm through an oil cylinder cross beam;

[0003] The crank arm needs to rotate continuously during normal operation, which results in relative movement between the oil cylinder cross beam and the side plate. During the relative movement process, the connecting part is affected by wear. At this time, a copper sleeve is usually provided between the two, and in order to avoid excessive wear of the copper sleeve, an oil injection joint is also provided to regularly lubricate through the oil injection joint.

[0004] However, during the actual operation process, it is inevitable that there will be negligence and the situation of failure to lubricate regularly in a timely manner, which will cause wear and damage of the copper sleeve, and then lead to the equipment being unable to work normally, affecting the production efficiency and continuity of the blast furnace.

[0005] A connecting structure between a crank arm and a hydraulic cylinder of a hydraulic clay gun is disclosed in the related technology (publication number: CN102839245A). The disclosed technical solution: compared with the prior art, the connecting structure between the crank arm and the hydraulic cylinder of the hydraulic clay gun uses a self-lubricating copper sleeve instead of a common copper sleeve. The self-lubricating copper sleeve is a combined part of copper-based material and graphite material. Graphite material is a good lubricating material. In this way, even if there is a phenomenon of lubricating oil cut-off, wear can be well avoided. It not only has a simple structure and is easy to implement, but also has a long service life and reliable operation.

[0006] In the above-disclosed technical solution, it is found that there are the following problems in the related technology: The operation of the hydraulic clay gun requires powerful power to drive the movement of the crank arm to achieve various actions of the clay gun, such as aligning the nozzle with the tapping hole and extruding the clay to block the tapping hole. The hydraulic cylinder converts the pressure energy of hydraulic oil into mechanical energy, providing powerful thrust and pulling force for the crank arm, enabling it to overcome various resistances and complete the corresponding work tasks. Therefore, the stability of the position where the hydraulic cylinder is located directly affects the accuracy of the firing position of the clay gun. Once the position of the hydraulic cylinder is offset due to loosening of the connecting components, resulting in the tapping hole not being accurately blocked, for this reason, we propose a new connecting structure between the crank arm and the hydraulic cylinder of the hydraulic clay gun.

[0007] It should be noted that the information disclosed in the above background art section is only used to enhance the understanding of the background art section of the present application, and thus may include prior art information that is not known to those of ordinary skill in the art and does not constitute the prior art. Summary of the Invention

[0008] The present invention aims to solve at least one of the technical problems existing in the prior art or related technologies. To solve the problem of the firm connection between the hydraulic cylinder and the toggle arm in the above prior art, the present invention provides a connection structure between the toggle arm and the hydraulic cylinder of a hydraulic mud gun, which uses a connection component that is convenient for disassembly and assembly and a firm traction structure of the hydraulic cylinder body to achieve the effect of improving the firm connection between the hydraulic cylinder and the toggle arm. The specific technical solution is as follows:

[0009] A connection structure between the toggle arm and the hydraulic cylinder of a hydraulic mud gun, including a docking seat rotatably arranged at the end of the toggle arm. Bases are fixedly connected to the side walls of both the docking seat and the movable end of the hydraulic cylinder. A docking adjustment member is arranged on the side wall of the base, and a two-way plug-in member is arranged at the movable end of the docking adjustment member;

[0010] Traction columns are rotatably arranged on the outer wall of the cylinder body of the hydraulic cylinder and on the side wall of the toggle arm. A sleeve is connected to the side wall of the toggle arm through an elastic telescopic member. The sleeve simultaneously sleeves outside the two traction columns, and a linkage locking member for simultaneously locking the telescopic states of the two traction columns is arranged on the outer wall of the sleeve;

[0011] A support outer arm is rotatably arranged on the base where the hydraulic cylinder is located. A support inner arm is rotatably connected to the outer wall of the elastic telescopic member. The support outer arm sleeves outside the support inner arm, and a point-by-point self-locking member is arranged between the inner cavity of the support inner arm and the support outer arm.

[0012] In the above technical solution, the docking adjustment member includes a groove opened on the base. A lead screw is rotatably arranged in the inner cavity of the groove. An alignment adjustment seat fixedly connected to the two-way plug-in member is threadedly connected to the outer wall of the lead screw. A deviation prevention guide rod parallel to the lead screw is embedded in the inner cavity of the groove, and a deviation prevention guide seat fixedly connected to the two-way plug-in member is sleeved on the outer wall of the deviation prevention guide rod.

[0013] The two-way plug-in member includes an outer frame fixedly connected to the alignment adjustment seat and the deviation prevention guide seat. A plug-in lock shell is slidably arranged on the inner wall of the outer frame. A reset locking member is arranged on the plug-in lock shell, and a feed docking assembly for adjusting the extending position of the reset locking member is arranged inside the outer frame.

[0014] The reset locking component includes a semicircular groove provided inside the plug-in lock shell, the inner wall of the semicircular groove is rotatably provided with a semicircular lock core, the circumferential outer wall of the semicircular lock core is fixedly connected with an unlocking rod extending out of the outside of the plug-in lock shell, the outer wall of the plug-in lock shell is fixedly connected with a plug-in pushing cone connected to the semicircular groove, the outer wall of the unlocking rod is rotatably connected to an outer rod located in the inner cavity of the plug-in lock shell, the inner wall of the plug-in lock shell is rotatably connected to an inner rod, and the outer rod is sleeved on the outside of the inner rod, and the outer wall of the inner rod is sleeved with a first elastic member.

[0015] The outer wall of the plug-in lock shell is provided with a clearance groove, and the unlocking rod extends out of the outside of the plug-in lock shell after passing through the clearance groove. The outer wall of the plug-in lock shell is fixedly connected to a locking rod, and the end of the unlocking rod outside the plug-in lock shell is fixedly connected to a sleeve, and the sleeve is sleeved on the outside of the locking rod by providing a through groove running through the inner cavity, and the outer wall of the locking rod is threadedly connected to a locking seat that rests on the sleeve.

[0016] The feed docking assembly includes an outer cylinder rotatably arranged in the inner cavity of the outer frame, the end of the outer cylinder is threadedly connected to a stud, the end of the stud is fixedly connected to a spherical part, the side wall of the plug-in lock housing is fixedly connected to an outer cover sleeved on the outside of the spherical part, the outer wall of the outer cylinder is sleeved with a driven gear, and the outer wall of the outer frame is rotatably provided with a driving gear meshing with the driven gear.

[0017] The linkage locking member includes a trapezoidal seat fixedly connected to the outer wall of the sleeve, and a push bar is slidably provided on the inclined surfaces of both sides of the trapezoidal seat. The end of the push bar close to the traction column is symmetrically fixed to the base column, and the outer wall of the base column is sleeved with a clamping column, and the clamping column and the base column are connected by a second elastic member.

[0018] A locking disk extending into the inner cavity of the sleeve is symmetrically rotated on the outer wall of the sleeve, and two groups of teeth that are plugged into the clamping column are evenly opened on the outer wall of the locking disk in the circumferential direction, and the tooth grooves of the two groups of circumferential teeth are staggered. The outer wall of the traction column is evenly opened in the longitudinal direction with tooth grooves that mesh with the teeth. A locking drive component that drives the two propulsion bars to move in the same direction at the same time is provided on the outer wall of the trapezoidal seat.

[0019] The locking drive component includes two meshing adjustment gears rotatably arranged on the side wall of the trapezoidal seat, and a propulsion gear and a driving gear respectively meshing with the two adjustment gears are rotatably arranged on the side wall of the trapezoidal seat, and racks respectively meshing with the propulsion gear and the driving gear are arranged on the side walls of the two propulsion bars.

[0020] The point-by-point self-locking member includes a double-headed elastic piece fixed to the bottom end of the inner support arm. The inner wall of the outer support arm is longitudinally and uniformly provided with spherical card slots, and spherical card members engaged with the spherical card slots are fixedly installed at both ends of the double-headed elastic piece.

[0021] The elastic telescopic member includes an outer support cylinder rotatably arranged on the curved arm. An inner support rod is rotatably arranged on the outer wall of the sleeve, and the outer support cylinder is sleeved outside the inner support rod. A third elastic member is sleeved on the outer wall of the inner support rod and located between the sleeve and the outer support cylinder.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows: The connection structure between the curved arm and the hydraulic cylinder of this hydraulic clay gun:

[0023] First, the positions of the two double-way plug-in connectors are adjusted through the docking adjustment members on the two bases, so as to adjust the position difference that appears when the docking seat is connected to the movable end of the hydraulic cylinder, ensuring the accuracy of the connection position of the two double-way plug-in connectors, thus bringing convenience to the operation during the installation process of the hydraulic cylinder.

[0024] Second, during the process of the movable end of the hydraulic cylinder telescoping and moving to adjust the angle of the curved arm, the cylinder body part of the hydraulic cylinder is pulled by the double-way telescopic member composed of the sleeve and the two traction columns. At the same time, the stability of the sleeve is improved through the frame body composed of the elastic telescopic member and the inner support arm, thereby increasing the traction force on the cylinder body part of the hydraulic cylinder.

[0025] Third, after the movable end of the hydraulic cylinder drives the curved arm to be adjusted to the accurate angle, the position is locked through the point-by-point self-locking member between the inner support arm and the outer support arm. The stability of the position where the hydraulic cylinder is located is improved through the formed frame body, thereby increasing the stability of the hydraulic cylinder and playing a protective effect on the hydraulic cylinder.

[0026] Fourth, when the distance is not sufficient to ensure the connection between the hydraulic cylinder and the docking seat, the position of the plug-in lock shell is adjusted through the feeding docking component. As the two plug-in lock shells move relative to each other on the inner walls of the two outer frames, and then are connected through the reset locking member, when the hydraulic cylinder is connected to the curved arm, the errors that appear can be eliminated in time, thus bringing convenience to the operation process of relevant personnel.

[0027] Fifth, when connecting the movable end of the hydraulic cylinder to the docking seat, the two plug-in lock shells are respectively pushed to move relative to each other through the feeding docking component on the outer frame. After the plug-in pushing cone slides into the plug-in lock shell, the semi-circular lock core is pushed to rotate through the inclined surface of the cone. When the two semi-circular lock cores are in contact with each other, at this time, using the elastic force of the first elastic member, the two semi-circular lock cores are reset and rotated, thereby connecting the two plug-in lock shells. When unlocking is required, the unlocking rods on each plug-in lock shell are pulled respectively, and then the two plug-in lock shells are moved towards each other to disconnect the hydraulic cylinder from the curved arm.

[0028] 6. After the two plug-in lock shells are plugged in relative to each other, screw the locking seat on the outer wall of the locking rod to lock the position of the unlocking rod to avoid accidentally touching the unlocking rod, thereby ensuring the stability of the hydraulic cylinder and the crank arm after docking.

[0029] 7. Since the two retractable and elastic clamping columns can be retracted and deformed, one of the clamping columns is clamped on one group of tooth grooves, and the other clamping column is clamped on the teeth as it is compressed. Through the staggered teeth and the two retractable clamping columns, the position of the traction column can be further locked, reducing the error in the locking process. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the structure of the hydraulic mud gun after installation of the connecting structure of the crank arm and the hydraulic cylinder of the present invention;

[0031] Figure 2 This is a structural schematic diagram of a connection structure between a crank arm and a hydraulic cylinder of a hydraulic mud gun of the present invention;

[0032] Figure 3 It is a structural schematic diagram of the docking adjustment component and the bidirectional connector of the present invention;

[0033] Figure 4 It is a schematic exploded view of the structure of the bidirectional connector part of the present invention;

[0034] Figure 5 It is a structural schematic diagram of the bidirectional connector of the present invention when docking;

[0035] Figure 6 It is a structural schematic diagram of the sleeve and the linkage locking component of the present invention;

[0036] Figure 7 It is a schematic exploded view of the structure of the sleeve and the linkage locking component of the present invention;

[0037] Figure 8 This is a schematic exploded view of the structure of the point-by-point self-locking component of the present invention;

[0038] Figure 9 for Figure 2 A local enlarged view of point A;

[0039] Figure 10 for Figure 4 A partial enlarged view of point B;

[0040] Figure 11 for Figure 4 A partial enlarged view of point C;

[0041] Figure 12 for Figure 7Partial enlarged view at D;

[0042] Figure 13 For Figure 7 Partial enlarged view at E;

[0043] Wherein, Figures 1 to 13 The corresponding relationship between the reference numerals and the component names in [] is as follows: 1 - crank arm, 2 - hydraulic cylinder, 3 - base, 4 - docking seat, 5 - docking adjustment member, 51 - groove, 52 - lead screw, 53 - anti - deviation guide rod, 54 - alignment adjustment seat, 55 - anti - deviation seat, 6 - two - way plug - in member, 61 - outer frame, 62 - plug - in lock housing, 63 - reset locking member, 631 - semi - circular groove, 632 - semi - circular lock core, 633 - unlocking rod, 634 - notch, 635 - plug - in pushing cone, 636 - outer rod, 637 - inner rod, 638 - first elastic member, 64 - feed docking assembly, 641 - outer cylinder, 642 - driven gear, 643 - sliding column, 644 - chute, 645 - spherical member, 646 - stud, 647 - driving gear, 648 - sector cover, 649 - outer cover, 650 - through hole, 7 - point - by - point self - locking member, 71 - double - headed elastic piece, 72 - spherical card slot, 73 - spherical card member, 8 - locking drive member, 81 - steering gear, 82 - propulsion gear, 83 - driving gear, 84 - rack, 9 - linkage locking member, 91 - trapezoidal seat, 92 - propulsion bar, 93 - base column, 94 - clamping column, 95 - second elastic member, 96 - locking disc, 97 - tooth, 98 - tooth socket, 99 - protective cover, 910 - perforation, 911 - slot hole, 912 - guide groove, 913 - guide block, 10 - traction column, 11 - sleeve, 12 - elastic telescopic member, 13 - supporting outer arm, 14 - supporting inner arm, 15 - third elastic member, 16 - relief groove, 17 - locking rod, 18 - socket, 19 - locking seat, 20 - through slot, 21 - inner support rod, 22 - outer support cylinder. Detailed implementation manners

[0044] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0045] Next, in combination with specific implementation cases and attached Figure 1 - attached Figure 13 The present invention will be further described, but the present invention is not limited to these embodiments.

[0046] A connecting structure between the crank arm and the hydraulic cylinder of a hydraulic mud gun, including a docking seat 4 rotatably arranged at the end of the crank arm 1. One end of the crank arm 1 of the hydraulic mud gun rotates longitudinally on the pedestal of the hydraulic mud gun. Bearings are embedded and installed on the inner walls on both sides of the other end of the crank arm 1. Both ends of the shaft body are embedded and installed inside the two bearings. The docking seat 4 is fixedly sleeved on the outer wall of the shaft body through an installation hole opened through the inner cavity, so that the docking seat 4 is hinged to the end of the crank arm 1. Bases 3 are fixedly connected to the side wall of the docking seat 4 and the movable end of the hydraulic cylinder 2 respectively.

[0047] The cylinder end of the hydraulic cylinder 2 is hinged to the pedestal of the hydraulic mud gun. By connecting the movable end of the hydraulic cylinder 2 to the docking seat 4, the movable end of the hydraulic cylinder 2 extends and moves to adjust the angle of the crank arm 1, which is adjusted according to the firing position of the hydraulic mud gun to ensure the accuracy of the treatment of the tapping hole. A docking adjustment member 5 is arranged on the side wall of the base 3, and a two-way plug-in member 6 is arranged at the movable end of the docking adjustment member 5. The base 3 is fixedly installed at the movable end of the hydraulic cylinder 2, and the base 3 is also fixedly installed at the free end of the docking seat 4.

[0048] With the above structure, the positions of the two two-way plug-in members 6 are adjusted through the docking adjustment members 5 on the two bases 3, so that when the docking seat 4 is connected to the movable end of the hydraulic cylinder 2, the position difference that appears is adjusted, ensuring the accuracy of the connection positions of the two two-way plug-in members 6, thus bringing convenience to the operation during the installation process of the hydraulic cylinder 2.

[0049] Traction columns 10 are rotatably arranged on the outer wall of the cylinder of the hydraulic cylinder 2 and the side wall of the crank arm 1. Rotating shafts are installed on the outer wall of the cylinder of the hydraulic cylinder 2 and the side wall of the crank arm 1 through brackets, so that the two traction columns 10 are respectively hinged to the cylinder body of the crank arm 1 and the hydraulic cylinder 2. The side wall of the crank arm 1 is connected to a sleeve 11 through an elastic telescopic member 12. The sleeve 11 is simultaneously sleeved outside the two traction columns 10, and a linkage locking member 9 for simultaneously locking the extended lengths of the two traction columns 10 is arranged on the outer wall of the sleeve 11.

[0050] The sleeve 11 is a cylindrical structure with a through inner cavity. One end of each of the two traction columns 10 is hinged to the outer wall of the cylinder of the hydraulic cylinder 2 and the crank arm 1 respectively, and the other ends of the two traction columns 10 both extend into the inside of the sleeve 11, so that the two traction columns 10 slide on the inner wall of the sleeve 11 by fitting from both ends. The sleeve 11 and the two traction columns 10 form a two-way telescopic member, and at the same time, the sleeve 11 and the crank arm 1 are respectively hinged to both ends of the elastic telescopic member 12.

[0051] A support outer arm 13 is rotatably arranged on the base where the hydraulic cylinder 2 is located. A support inner arm 14 is rotatably connected to the outer wall of the elastic telescopic member 12. The support outer arm 13 is sleeved outside the support inner arm 14, and a point-by-point self-locking member 7 is arranged between the inner cavity of the support inner arm 14 and the support outer arm 13.

[0052] One end of the supporting outer arm 13 is sleeved on the outer wall of the shaft body through a connecting piece. The shaft body rotates on the pedestal where the hydraulic cylinder 2 is located, so that one end of the supporting outer arm 13 rotates on the pedestal where the hydraulic cylinder 2 is located. The other end of the supporting outer arm 13 is sleeved outside one end of the supporting inner arm 14. The other end of the supporting inner arm 14 is sleeved on the outside of the shaft body through a connecting piece. The shaft body rotates on the outer wall of the outer supporting cylinder 22 through a bracket. Thus, both ends of the telescopic member formed by the supporting inner arm 14 and the supporting outer arm 13 are hinged to the outer supporting cylinder 22 and the pedestal where the hydraulic cylinder 2 is located respectively. During the process of the supporting inner arm 14 telescopically sliding inside the inner wall of the supporting outer arm 13, it is gradually self-locked through the point-by-point self-locking member 7.

[0053] With the above structure, during the process of the movable end of the hydraulic cylinder 2 telescopically moving to adjust the angle of the crank arm 1, the cylinder body part of the hydraulic cylinder 2 is pulled by the bidirectional telescopic member formed by the sleeve 11 and the two traction columns 10. At the same time, the stability of the sleeve 11 is improved through the frame body formed by the elastic telescopic member 12 and the supporting inner arm 14, thereby increasing the traction force of the cylinder body part of the hydraulic cylinder 2.

[0054] After the movable end of the hydraulic cylinder 2 drives the crank arm 1 to be adjusted to the accurate angle, it is locked at this position through the point-by-point self-locking member 7 between the supporting inner arm 14 and the supporting outer arm 13. The stability of the position where the hydraulic cylinder 2 is located is improved through the formed frame body, and further the stability of the hydraulic cylinder 2 is increased, playing a protective effect on the hydraulic cylinder 2.

[0055] Among them, the docking adjustment member 5 includes a groove 51 opened on the base 3. A lead screw 52 is rotatably arranged in the inner cavity of the groove 51. The outer wall of the lead screw 52 is threadedly connected with an alignment adjustment seat 54 fixedly connected to the bidirectional plug-in member 6. A deviation-preventing guide rod 53 parallel to the lead screw 52 is embedded in the inner cavity of the groove 51. The outer wall of the deviation-preventing guide rod 53 is sleeved with a deviation-preventing seat 55 fixedly connected to the bidirectional plug-in member 6. The groove 51 is opened along the center position in the radial direction of the base 3. Bearings are embedded and installed on the inner walls on both sides of the groove 51. Both ends of the lead screw 52 are respectively embedded and installed inside the two bearings, and both ends of the lead screw 52 respectively extend out of the base 3. The lead screw 52 is operated through the part extending out of the base 3.

[0056] The deviation-preventing guide rod 53 is fixedly embedded and installed on the inner wall of the groove 51, so that the deviation-preventing guide rod 53 and the lead screw 52 are in parallel positions. The alignment adjustment seat 54 is connected to the lead screw 52 through a threaded through hole opened in the inner cavity. The deviation-preventing seat 55 is movably sleeved on the outside of the deviation-preventing guide rod 53 through a through hole opened in the inner cavity.

[0057] With the above mechanism, when adjusting the position of the double-sided connector 6, the alignment adjustment base 54 is driven to move the double-sided connector 6 by rotating the lead screw 52. At the same time, the double-sided connector 6 drives the anti-deviation guide seat 55 to slide along the outer wall of the anti-deviation guide rod 53, preventing the position deviation of the double-sided connector 6 and ensuring the accuracy of the adjusted position.

[0058] It should be noted that the double-sided connector 6 includes an outer frame 61 fixedly connected to the alignment adjustment base 54 and the anti-deviation guide seat 55. A plug-in lock housing 62 is slidably arranged on the inner wall of the outer frame 61. The plug-in lock housing 62 slides along the inner wall of the outer frame 61. On both sides of the surface of the plug-in lock housing 62, sliding columns 643 are vertically and fixedly installed. On both sides of the surface of the outer frame 61, chutes 644 extending into the inner cavity are provided. When the plug-in lock housing 62 slides along the inner wall of the outer frame 61, the plug-in lock housing 62 drives the sliding columns 643 to slide along the inner wall of the chutes 644. The sliding fit between the sliding columns 643 and the chutes 644 ensures the stability of the moving direction of the plug-in lock housing 62.

[0059] A reset locking member 63 is arranged on the plug-in lock housing 62, and a feeding docking assembly 64 for adjusting the extending position of the reset locking member 63 is arranged inside the outer frame 61. The extending length of the plug-in lock housing 62 is adjusted through the feeding docking assembly 64.

[0060] With the above structure, when two double-sided connectors 6 are connected, when the distance is not sufficient to ensure the connection between the hydraulic cylinder 2 and the docking seat 4, the position of the plug-in lock housing 62 is adjusted through the feeding docking assembly 64. As the two plug-in lock housings 62 move relative to each other along the inner walls of the two outer frames 61 and are then connected through the reset locking member 63, when the hydraulic cylinder 2 is connected to the crank arm 1, the errors that occur can be eliminated in a timely manner, which brings convenience to the operation process of relevant personnel.

[0061] In addition, the reset locking member 63 includes a semi-circular groove 631 opened inside the plug-in lock housing 62. A semi-circular lock core 632 is rotatably arranged in contact with the inner wall of the semi-circular groove 631. An unlocking rod 633 extending outside the plug-in lock housing 62 is fixedly connected to the circumferential outer wall of the semi-circular lock core 632. A plug-in pushing cone 635 connected to the semi-circular groove 631 is fixedly connected to the outer wall of the plug-in lock housing 62. The plug-in pushing cone 635 is fixed on the side of the plug-in lock housing 62 away from the base 3. A semi-circular groove 631 is opened on the surface of the plug-in pushing cone 635 extending into the plug-in lock housing 62. The semi-circular lock core 632 is inclined and in contact with the inner wall of the semi-circular groove 631 by the elastic force of the first elastic member 638.

[0062] The outer wall of the unlocking rod 633 is rotatably connected to an outer rod 636 located inside the insertion lock housing 62. The inner wall of the insertion lock housing 62 is rotatably connected to an inner rod 637, and the outer rod 636 is sleeved outside the inner rod 637. A first elastic member 638 is sleeved on the outer wall of the inner rod 637. The outer rod 636 fits and slides telescopically on the outer wall of the inner rod 637. The first elastic member 638 can compress a spring. The two ends of the first elastic member 638 are respectively fixed to the end of the outer rod 636 and the inner wall of the insertion lock housing 62. At the same time, the first elastic member 638 fits and slides telescopically on the outer wall of the inner rod 637. A structure composed of the inner rod 637, the outer rod 636, and the first elastic member 638 exerts a force on the unlocking rod 633, causing the unlocking rod 633 to slide along the inner wall of the semi-circular groove 631. A notch 634 for the movement space of the unlocking rod 633 is opened on the outer wall of the semi-circular groove 631, so that the outer wall of the unlocking rod 633 fits on the inner wall of one side of the notch 634 and extends to the relief groove 16 to extend outside the insertion lock housing 62.

[0063] With the above structure, when connecting the movable end of the hydraulic cylinder 2 to the docking seat 4, after the two double-sided connectors 6 are adjusted to the alignment position, the feed docking components 64 on the outer frame 61 respectively push the two insertion lock housings 62 to move relatively, so that the insertion push cones 635 on the two double-sided connectors 6 slide into each other's interiors in a fitting manner. After the insertion push cone 635 slides into the insertion lock housing 62, the semi-circular lock core 632 is pushed to rotate by the tapered inclined surface. At this time, the unlocking rod 633 causes the outer rod 636 and the inner rod 637 to be stretched by the action of the semi-circular lock core 632, causing the first elastic member 638 to generate an elastic force. When the two semi-circular lock cores 632 fit together, the elastic force of the first elastic member 638 is used at this time to cause the two semi-circular lock cores 632 to rotate back to their original positions, thereby connecting the two insertion lock housings 62.

[0064] When unlocking is required, the unlocking rods 633 on each insertion lock housing 62 are respectively pulled, and then the two insertion lock housings 62 are moved towards each other to separate the movable end of the hydraulic cylinder 2 from the crank arm 1.

[0065] In addition, a relief groove 16 is formed in the outer wall of the plug-in lock housing 62. The unlocking rod 633 extends out of the plug-in lock housing 62 after passing through the relief groove 16. A locking rod 17 is fixedly connected to the outer wall of the plug-in lock housing 62. A socket base 18 is fixedly connected to the end of the unlocking rod 633 located outside the plug-in lock housing 62. The socket base 18 is sleeved on the outside of the locking rod 17 through a through groove 20 formed in the through cavity. A locking seat 19 that abuts against the socket base 18 is threadedly connected to the outer wall of the locking rod 17. The socket base 18 is fixedly installed at the end of the unlocking rod 633 located outside the plug-in lock housing 62, and a through groove 20 with sufficient space is formed in the inner cavity of the socket base 18, so that the socket base 18 can move on the outside of the locking rod 17 through the through groove 20. Due to the limitation of the semicircular lock core 632 by the notch 634, and the unlocking rod 633 is fixedly connected to the semicircular lock core 632, the unlocking rod 633 is limited in the initial position along with the semicircular lock core 632. An external thread is formed on the part of the locking rod 17 that passes through the outside of the socket base 18.

[0066] With the above structure, after the two plug-in lock housings 62 are inserted into each other, the locking seat 19 is screwed on the outer wall of the locking rod 17 to lock the position of the unlocking rod 633, avoiding accidental contact with the unlocking rod 633, thereby ensuring the stability after the hydraulic cylinder 2 is docked with the crank arm 1.

[0067] Furthermore, the feeding and docking assembly 64 includes an outer cylinder 641 rotatably arranged in the inner cavity of the outer frame 61. A stud 646 is threadedly connected to the end of the outer cylinder 641. The outer cylinder 641 rotates on the inner wall of the outer frame 61 through a bearing. A threaded hole is formed on the other side of the outer cylinder 641, so that the stud 646 is connected to the outer cylinder 641. A spherical member 645 is fixedly connected to the end of the stud 646. An outer cover 649 sleeved on the outside of the spherical member 645 is fixedly connected to the side wall of the plug-in lock housing 62. The spherical member 645 rotates inside the outer cover 649.

[0068] A driven gear 642 is sleeved on the outer wall of the outer cylinder 641. A driving gear 647 meshing with the driven gear 642 is rotatably arranged on the outer wall of the outer frame 61. A through hole 650 is formed on the side wall of the outer frame 61. The through hole 650 is covered by a sector-shaped cover 648. The driving gear 647 rotates on the inner wall of the sector-shaped cover 648 through a central shaft. The central shaft of the driving gear 647 extends out of the sector-shaped cover 648. The driven gear 642 is fixedly sleeved on the outer wall of the outer cylinder 641 through a central mounting hole. The driving gear 647 passes through the through hole 650 and meshes with the driven gear 642.

[0069] With the above structure, when adjusting the position of the insertion and pushing cone 635 to drive the docking of the two insertion lock housings 62, rotate the central axis extending outside the fan-shaped cover 648, so that the driving gear 647 drives the driven gear 642 to rotate, so that the outer cylinder 641 rotates, so that the stud 646 threadedly connected to the outer cylinder 641 drives the spherical member 645 to rotate and move, so that the outer cover 649 drives the insertion lock housing 62 to move.

[0070] The linkage locking member 9 includes a trapezoidal seat 91 fixedly connected to the outer wall of the sleeve 11. The trapezoidal seat 91 is obliquely fixed on the outer wall of the sleeve 11. The two inclined surfaces of the trapezoidal seat 91 are both slidably provided with push bars 92. The inclined surface of the trapezoidal seat 91 is an uphill inclined surface from right to left. A T-shaped guide groove 912 is formed in the inclined surface of the trapezoidal seat 91. A T-shaped guide block 913 is fixedly installed at the bottom of the push bar 92, so that the push bar 92 is attached to the inclined surface of the trapezoidal seat 91 and slides through the sliding fit of the guide block 913 and the guide groove 912.

[0071] Base columns 93 are symmetrically fixedly connected to the end of the push bar 92 close to the traction column 10. A clamping column 94 is sleeved on the outer wall of the base column 93, and the clamping column 94 is connected to the base column 93 through a second elastic member 95. The clamping column 94 fits and slides telescopically on the outer wall of the base column 93. The second elastic member 95 can be a compression spring, so that the two ends of the second elastic member 95 are respectively fixed to the inner wall of the clamping column 94 and the end of the base column 93;

[0072] Locking discs 96 extending into the inner cavity of the sleeve 11 are symmetrically rotatably arranged on the outer wall of the sleeve 11. Two groups of teeth 97 inserted with the clamping columns 94 are evenly arranged in the circumferential direction on the outer wall of the locking disc 96. The tooth grooves of the two groups of circumferential teeth 97 are staggered. Two protective covers 99 are symmetrically and fixedly installed on the upper and lower sides of the outer wall of the sleeve 11. A slot hole 911 extending into the inner cavity of the sleeve 11 is formed at the position where the two protective covers 99 cover the outer wall of the sleeve 11. The locking disc 96 is rotatably installed through a central axis inside each protective cover 99. The locking disc 96 is fixedly sleeved on the outer wall of the central axis through a mounting hole formed in the center. The central axis rotates inside the protective cover 99. Two groups of side-by-side teeth 97 are formed on the outer circumferential wall of each locking disc 96, and the two transverse teeth 97 at the same position are in a staggered position, that is, the teeth 97 and the tooth grooves are in a side-by-side transverse position.

[0073] The outer wall of the traction column 10 is longitudinally and evenly provided with tooth grooves 98 that mesh with the teeth 97. Two rows of staggered pressure grooves 98 are provided on the outer wall of the sleeve 11, so that the two rows of tooth grooves 98 mesh with two groups of circumferential teeth 97 at the same time. A locking drive member 8 for driving the two push bars 92 to displace in the same direction at the same time is provided on the outer wall of the trapezoidal seat 91. After the hydraulic cylinder 2 drives the crank arm 1 to be adjusted to the accurate position, the two push bars 92 are driven by the locking drive member 8 to move along the inclined surfaces of the two trapezoidal seats 91 towards the shield 99, so that the clamping columns 94 pass through the through holes 910 on the shield 99 and simultaneously touch the teeth 97 of the locking disc 96.

[0074] With the above structure, the two telescopic and elastic clamping columns 94 can be telescoped and deformed, so that one clamping column 94 is clamped on one group of tooth grooves, and the other clamping column 94 is clamped on the teeth 97 with compression. Through the staggered teeth 97 and the two telescopic clamping columns 94, the position of the traction column 10 can be further locked, the error in the locking process can be reduced, and the stability of the position where the hydraulic cylinder 2 is located can be guaranteed.

[0075] The locking drive member 8 includes two meshing direction-adjusting gears 81 rotatably provided on the side wall of the trapezoidal seat 91. A push gear 82 and a drive gear 83 that are respectively meshed with the two direction-adjusting gears 81 are rotatably provided on the side wall of the trapezoidal seat 91, and racks 84 that are respectively meshed with the push gear 82 and the drive gear 83 are provided on the side walls of the two push bars 92. The two direction-adjusting gears 81 and the push gear 82 rotate on the trapezoidal seat 91 through central shafts, and the drive gear 83 is fixedly sleeved on the outer wall of the output shaft of the motor through an installation hole opened in the center. The motor is electrically connected to an external power supply through a wire.

[0076] The two direction-adjusting gears 81 are located between the push gear 82 and the drive gear 83. The drive gear 83 meshes with one of the direction-adjusting gears 81, this direction-adjusting gear 81 meshes with the other direction-adjusting gear 81, the other direction-adjusting gear 81 meshes with the push gear 82, and racks 84 are fixedly installed on the side walls of the two push bars 92 and near the lower ends, so that the two racks 84 mesh with the drive gear 83 and the push gear 82 on both sides of the trapezoidal seat 91 respectively. Through the four sequentially meshing gears, the two push bars 92 slide along the inclined surfaces of the trapezoidal seat 91 at the same time.

[0077] The point-by-point self-locking component 7 includes a double-headed elastic piece 71 fixedly connected to the bottom end of the support inner arm 14. Spherical card slots 72 are longitudinally and evenly formed on the inner wall of the support outer arm 13. Spherical fasteners 73 engaged with the spherical card slots 72 are fixedly installed at both ends of the double-headed elastic piece 71. During the process of the hydraulic cylinder 2 adjusting the angle of the crank arm 1, with the displacement of each part, the support inner arm 14 drives the double-headed elastic piece 71 to move inside the support outer arm 13, so that both ends of the double-headed elastic piece 71 drive the spherical fasteners 73 to slide through the spherical card slots 72 in sequence.

[0078] With the above structure, after the angle of the crank arm 1 is adjusted, the double-headed elastic piece 71 drives the two spherical fasteners 73 to be embedded inside the corresponding spherical card slots 72, thereby locking the position of the support inner arm 14. Through the self-locking of each position, the various frame parts are stably supported, and thus the stability between the hydraulic cylinder 2 and the crank arm is ensured.

[0079] The elastic telescopic component 12 includes an outer support cylinder 22 rotatably arranged on the crank arm 1. An inner support rod 21 is rotatably arranged on the outer wall of the sleeve 11, and the outer support cylinder 22 is sleeved outside the inner support rod 21. A third elastic member 15 located between the sleeve 11 and the outer support cylinder 22 is sleeved on the outer wall of the inner support rod 21. The outer support cylinder 22 and the inner support rod 21 form a telescopic component. The third elastic member 15 can be a compression spring, and both ends of the third elastic member 15 are respectively fixed on the outer walls of the outer support cylinder 22 and the sleeve 11.

[0080] For the connection structure between the crank arm and the hydraulic cylinder of a hydraulic mud gun in this embodiment, the working principle is as follows: When connecting the movable end of the hydraulic cylinder 2 with the docking seat 4, by rotating the lead screw 52, the alignment adjustment seat 54 drives the double-sided plug-in member 6 to move, and the two double-sided plug-in members 6 are adjusted to be on the same straight line.

[0081] Then rotate the central axis extending outside the sector-shaped cover 648, so that the driving gear 647 drives the driven gear 642 to rotate, so that the outer cylinder 641 rotates, so that the stud 646 threadedly connected to the outer cylinder 641 drives the spherical member 645 to rotate and move, so that the outer cover 649 drives the plug-in lock housing 62 to move, and the plug-in pushing cones 635 on the two double-sided plug-in members 6 slide into each other's interiors in a fitting manner.

[0082] After the plug-in pushing cone 635 slides into the plug-in lock housing 62, the semi-circular lock core 632 is pushed to rotate by the tapered inclined surface. At this time, the unlocking rod 633 stretches the outer rod 636 and the inner rod 637 under the action of the semi-circular lock core 632, so that the first elastic member 638 generates an elastic force. When the two semi-circular lock cores 632 are in contact with each other, at this time, using the elastic force of the first elastic member 638, the two semi-circular lock cores 632 are reset to rotate, thereby connecting the two plug-in lock housings 62.

[0083] After the two plug-in lock housings 62 are plugged together, the locking seat 19 is screwed on the outer wall of the locking rod 17 to lock the position of the unlocking rod 633 and prevent accidental contact with the unlocking rod 633.

[0084] When unlocking is required, the unlocking rods 633 on the respective plug-in lock housings 62 are pulled respectively, and then the two plug-in lock housings 62 are moved towards each other to separate the movable end of the hydraulic cylinder 2 from the crank arm 1.

[0085] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "center", "both ends", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation of the present invention.

[0086] In addition, the terms "first", "second", "third", "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third", "fourth" may explicitly or implicitly include at least one of such features.

[0087] In the present invention, unless otherwise clearly defined and limited, the terms "installed", "set", "connected", "fixed", "swivelly connected", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. Unless otherwise clearly limited, for those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0088] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A connecting structure between the crank arm and the hydraulic cylinder of a hydraulic mud gun, characterized in that: It includes a docking seat (4) rotatably arranged at the end of the crank arm (1). A base (3) is fixedly connected to the side wall of the docking seat (4) and the movable end of the hydraulic cylinder (2). A docking adjustment member (5) is arranged on the side wall of the base (3), and a two-way plug-in member (6) is arranged at the movable end of the docking adjustment member (5). A traction column (10) is rotatably arranged on the outer wall of the cylinder body of the hydraulic cylinder (2) and the side wall of the crank arm (1). A sleeve (11) is connected to the side wall of the crank arm (1) through an elastic telescopic member (12). The sleeve (11) is sleeved outside both of the traction columns (10) at the same time, and a linkage locking member (9) for simultaneously locking the telescopic states of the two traction columns (10) is arranged on the outer wall of the sleeve (11). A support outer arm (13) is rotatably arranged on the base where the hydraulic cylinder (2) is located. A support inner arm (14) is rotatably connected to the outer wall of the elastic telescopic member (12). The support outer arm (13) is sleeved outside the support inner arm (14), and a point-by-point self-locking member (7) is arranged between the inner cavity of the support inner arm (14) and the support outer arm (13). The docking adjustment member (5) includes a groove (51) opened on the base (3). A lead screw (52) is rotatably arranged in the inner cavity of the groove (51). An alignment adjustment seat (54) fixedly connected to the two-way plug-in member (6) is threadedly connected to the outer wall of the lead screw (52). An anti-deviation guide rod (53) parallel to the lead screw (52) is embedded in the inner cavity of the groove (51). An anti-deviation guide seat (55) fixedly connected to the two-way plug-in member (6) is sleeved on the outer wall of the anti-deviation guide rod (53). The two-way plug-in member (6) includes an outer frame (61) fixedly connected to the alignment adjustment seat (54) and the anti-deviation guide seat (55). A plug-in lock shell (62) is slidably arranged on the inner wall of the outer frame (61). A reset locking member (63) is arranged on the plug-in lock shell (62), and a feed docking assembly (64) for adjusting the extending position of the reset locking member (63) is arranged inside the outer frame (61).

2. The connecting structure between the crank arm and the hydraulic cylinder of a hydraulic mud gun according to claim 1, characterized in that: The reset locking member (63) includes a semi-circular groove (631) opened inside the plug-in lock shell (62). A semi-circular lock core (632) is rotatably arranged in a fitting manner on the inner wall of the semi-circular groove (631). An unlocking rod (633) extending outside the plug-in lock shell (62) is fixedly connected to the circumferential outer wall of the semi-circular lock core (632). A plug-in pushing cone (635) connected to the semi-circular groove (631) is fixedly connected to the outer wall of the plug-in lock shell (62). An outer rod (636) located inside the plug-in lock shell (62) is rotatably connected to the outer wall of the unlocking rod (633). An inner rod (637) is rotatably connected to the inner wall of the plug-in lock shell (62). The outer rod (636) is sleeved outside the inner rod (637), and a first elastic member (638) is sleeved on the outer wall of the inner rod (637).

3. The connecting structure between the crank arm and the hydraulic cylinder of a hydraulic mud gun according to claim 2, characterized in that: A relief groove (16) is formed in the outer wall of the plug-in lock housing (62). The unlocking rod (633) extends out of the plug-in lock housing (62) after passing through the relief groove (16). A locking rod (17) is fixedly connected to the outer wall of the plug-in lock housing (62). A socket base (18) is fixedly connected to the end of the unlocking rod (633) outside the plug-in lock housing (62). The socket base (18) is sleeved on the outside of the locking rod (17) through a through groove (20) formed in the inner cavity. A locking seat (19) that abuts against the socket base (18) is threadedly connected to the outer wall of the locking rod (17).

4. The connecting structure between the crank arm and the hydraulic cylinder of a hydraulic clay gun according to claim 1, characterized in that: The feeding and docking assembly (64) includes an outer cylinder (641) rotatably arranged in the inner cavity of the outer frame (61). A stud (646) is threadedly connected to the end of the outer cylinder (641). A spherical member (645) is fixedly connected to the end of the stud (646). An outer cover (649) sleeved on the outside of the spherical member (645) is fixedly connected to the side wall of the plug-in lock housing (62). A driven gear (642) is sleeved on the outer wall of the outer cylinder (641). A driving gear (647) meshing with the driven gear (642) is rotatably arranged on the outer wall of the outer frame (61).

5. The connecting structure between the toggle arm and the hydraulic cylinder of a hydraulic mud gun according to claim 1, wherein: The linkage locking member (9) includes a trapezoidal seat (91) fixedly connected to the outer wall of the sleeve (11). Push bars (92) are slidably arranged on both inclined surfaces of the trapezoidal seat (91). Base columns (93) are symmetrically fixedly connected to the ends of the push bars (92) close to the traction column (10). A clamping column (94) is sleeved on the outer wall of the base column (93). The clamping column (94) and the base column (93) are connected by a second elastic member (95). Locking discs (96) extending into the inner cavity of the sleeve (11) are symmetrically rotatably arranged on the outer wall of the sleeve (11). Two groups of teeth (97) inserted with the clamping columns (94) are circumferentially and evenly formed on the outer wall of the locking discs (96). The tooth grooves of the two groups of circumferential teeth (97) are staggered. Tooth grooves (98) meshing with the teeth (97) are longitudinally and evenly formed on the outer wall of the traction column (10). A locking driving member (8) for driving the two push bars (92) to displace simultaneously and in the same direction is arranged on the outer wall of the trapezoidal seat (91).

6. The connecting structure between the toggle arm and the hydraulic cylinder of a hydraulic mud gun according to claim 5, characterized in that: The locking driving member (8) includes two meshing direction-adjusting gears (81) rotatably arranged on the side wall of the trapezoidal seat (91). A push gear (82) and a driving gear (83) respectively meshing with the two direction-adjusting gears (81) are rotatably arranged on the side wall of the trapezoidal seat (91). Rack bars (84) respectively meshing with the push gear (82) and the driving gear (83) are arranged on the side walls of the two push bars (92).

7. The connecting structure between the toggle arm and the hydraulic cylinder of a hydraulic clay gun according to claim 1, wherein: The point-by-point self-locking member (7) includes a double-headed elastic piece (71) fixedly connected to the bottom end of the inner support arm (14). The inner wall of the outer support arm (13) is longitudinally and uniformly provided with spherical card slots (72). Both ends of the double-headed elastic piece (71) are fixedly installed with spherical card members (73) that are engaged with the spherical card slots (72).

8. The connecting structure between the crank arm and the hydraulic cylinder of a hydraulic mud gun according to claim 1, wherein: The elastic telescopic member (12) includes an outer support cylinder (22) rotatably arranged on the curved arm (1). An inner support rod (21) is rotatably arranged on the outer wall of the sleeve (11), and the outer support cylinder (22) is sleeved outside the inner support rod (21), and a third elastic member (15) is sleeved on the outer wall of the inner support rod (21) and is located between the sleeve (11) and the outer support cylinder (22).

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