10results about How to "Increased lifting capacity" patented technology

The invention relates to a dismounting and mounting robot for mine equipment maintenance, and belongs to the technical field of equipment dismounting and mounting. Comprising a forklift loader, a lifting arm is hinged to the forklift loader, a telescopic arm is arranged in the lifting arm in a sliding mode, a connecting platform is rotationally arranged at the end of the telescopic arm through an angle adjusting mechanism, and the angle of the connecting platform is adjusted through the angle adjusting mechanism; a rotating box is slidably arranged on the connecting platform through a lifting mechanism, and the lifting mechanism controls the rotating box to ascend and descend. A clamping mechanism is rotationally arranged on the rotating box through a slewing mechanism, and the whole clamping mechanism is controlled to rotate through the slewing mechanism; the clamping mechanism comprises two clamping arms, and a hoisting mechanism is arranged at the lower end of each clamping arm; the problems that at present, mining equipment is low in disassembly and assembly efficiency and large in potential safety hazard are solved.

The utility model relates to hoisting tool technical field, especially point to a kind of carrying hoisting tool in field operation without network power supply, solve the problem of inconvenient equipment disassembly and carrying, poor assembly convenience in prior art, including crane frame and crane chassis, be equipped with middle shaft outer sleeve pipe on crane frame, be equipped with chassis central shaft on crane chassis, chassis central shaft and middle shaft outer sleeve pipe plug-in cooperation, the length of chassis central shaft is less than one half of middle shaft outer sleeve pipe length;Rotary drive mechanism is equipped between crane frame and crane chassis;Crane frame is detachably connected with lifting arm, take-up assembly and power generation component on it.Affirmative effect is: reduce assembly labor intensity, improve field deployment efficiency, chassis central shaft length is designed as less than one half of middle shaft outer sleeve pipe length, only need to lift crane frame to slightly higher than chassis central shaft height during assembly, it can be realized that chassis central shaft and middle shaft outer sleeve pipe plug-in cooperation, without auxiliary equipment, substantially improve the deployment efficiency of field operation.

The utility model discloses an assembly type high-strength prestress broken line type roof truss U-shaped hoisting accessory which comprises a hoisting main body, the top of the hoisting main body is fixedly connected with a connecting piece, two through holes are formed in the hoisting main body, and two lock bolts are jointly arranged in the two through holes in a clamped mode. According to the utility model, firstly, the roof truss is punched, after punching, the bidirectional threaded rod is rotated, so that the two threaded sleeves move towards each other or away from each other outside the bidirectional threaded rod, the two limiting sleeves can coincide with the two round holes outside the roof truss through the linkage of the two sliding rods, and then the lock bolt penetrates through the two limiting sleeves, so that the connection operation of hoisting is realized; the drilling distance outside the roof truss does not need to be accurately measured in the process, so that the hoisting and assembling process is more efficient and faster, through the embedded tungsten steel alloy frame, the hardness of the whole device can be improved, the pulling resistance and the hoisting capacity of the whole device in the hoisting operation process can be improved, and meanwhile the durability and the stability in the hoisting process are improved.

This application discloses a luffing tower crane jib head, including a modularly designed jib head frame, hoisting pulley block, and maintenance basket. The jib head frame consists of a lower section structure, a main chord structure, and a first diagonal web member, which is stable and easy to connect. The lower section structure has detachable and modular outriggers at the bottom, which facilitates support during transportation and installation and reduces weight during operation. One end of the main chord member is firmly connected to the jib section, while the other end is closed to enhance strength. The first diagonal web member and the transverse web member form a triangular structure to distribute the force. The hoisting pulley block is equipped with a rope-stopping device, with the rope-stopping ring and rope-stopping rod providing double protection to prevent the wire rope from detaching and ensuring convenient wire rope passage. In addition, a walkway, handrails, and maintenance basket are provided to offer workers a stable working platform. This application improves the spatial adaptability, safety, and operational efficiency of the luffing tower crane jib head while reducing costs.

The invention provides a hoisting device convenient to maintain, and relates to the field of hoisting devices, the hoisting device convenient to maintain is characterized in that the hoisting device comprises a mounting box, a three-stage gear assembly and a brake disc, the appearance of the mounting box is a cuboid, a cavity is formed in the mounting box, an upper hook is fixed at the upper end of the mounting box, and an electrical assembly is fixedly connected with the mounting box; the three-stage gear assembly is located in the mounting box, a chain connecting base is arranged on the side, close to the electrical assembly, of the three-stage gear assembly and is in transmission connection with the three-stage gear assembly through a gear set, a chain is connected into the chain connecting base in a wound mode, and a lower hook is fixed to the lower end of the chain. A gear box is arranged on the side, away from the electrical assembly, of the third-stage gear assembly, one end of the gear box is provided with a bearing and a rotating shaft and is in transmission connection with the third-stage gear assembly, and the two ends of the connecting shaft are connected with the gear box and the rotating shaft of the motor respectively. The device has the advantages that the device is convenient to maintain and use, and meanwhile, the cargo transporting and lifting effect is improved.

The utility model relates to the technical field of mining machinery, in particular to a vehicle-mounted hoisting arm for a low and narrow space of a coal mine, which comprises a mounting seat assembly, a rotary seat, a pitching driving piece, a first arm frame, a second arm frame, a third arm frame and a hoisting piece, the rotary seat is mounted on the mounting seat assembly in a transshipment manner, and a back pitching arm is arranged on the rotary seat; the first arm frame is connected to the back pitching arm, and the pitching driving piece is connected between the rotary seat and the first arm frame; the second arm frame is inserted into the first arm frame in a sliding manner; the third arm frame is inserted into the second arm frame in a sliding manner; and the hoisting piece is connected to the tail end of the third arm support. According to the lifting arm, the height of the lifting arm can be fully compressed, the purpose of reducing the size and volume of the lifting arm is achieved, the length of the lifting arm in a retracted state can be further reduced, and the technical problem that in the prior art, a lifting arm arranged on a coal mine underground transport vehicle cannot be suitable for low and narrow roadways is solved.

The utility model relates to the technical field of water conservancy, in particular to a water conservancy culvert pipe lifting appliance which comprises an end plate, a sliding groove is formed in one side wall of the end plate, a double-shaft motor is fixed to the middle of an inner cavity of the sliding groove, lead screws are fixed to the two ends of the double-shaft motor, the outer ends of the lead screws are rotationally connected with the inner wall of the sliding groove, and matched lead screw sliding blocks are arranged on the outer walls of the lead screws in a sleeved mode. The outer wall of the lead screw sliding block is fixedly connected with an adjusting block, the outer end of the adjusting block is connected with a supporting plate, and a plurality of evenly-distributed supporting blocks are fixed to the top of the supporting plate. The double-shaft motor drives the lead screws on the two sides to rotate, so that the lead screw sliding blocks can be driven to move, the adjusting blocks and the supporting plates can be driven to adjust the distance, the distance between the two supporting plates can be adjusted when culvert pipes of different sizes are hoisted, the inner walls of the culvert pipes are supported on the two sides, and the hoisting efficiency is improved. And the supporting position is adjusted optimally, so that high stability of the culvert pipe in the hoisting process is ensured, and the hoisting effect is improved.

The invention belongs to the field of hoisting equipment, and particularly provides cable hoisting equipment and an operation method thereof.The cable hoisting equipment comprises at least two sets of cables, the two ends of each cable are anchored to anchoring points, at least one cable crane cart is arranged on every two adjacent sets of cables, each cable crane cart comprises a cart table, at least two sets of walking mechanisms are arranged at the bottom of each cart table, and the walking mechanisms are arranged on the cart table. The walking mechanism moves along the cable, the walking mechanism comprises a walking support, a first walking wheel and a first riding wheel which are driven by a motor are arranged on the walking support, the cable is arranged between the first walking wheel and the first riding wheel, and a lifting mechanism is arranged on the cart platform. According to the equipment and the method, the cable fixing form is adopted, and the bearing capacity is improved.

This utility model relates to the field of boom assembly technology and discloses a lightweight mechanical boom assembly, including a first fixing frame, a second fixing frame welded to the lower surface of the first fixing frame, and an anti-slip pedal welded to the upper surface of the first fixing frame. The outer wall of the first fixing frame is provided with a fixing mechanism for fixing the assembly, and the lower surface of the second fixing frame is provided with a reinforcing mechanism for strengthening the assembly. The fixing mechanism includes four connectors, each welded to both ends of the first fixing frame. A fixing rod is inserted into the interior of each of the four connectors, and a guardrail is welded to the upper surface of the fixing rod. This utility model, by providing an anti-slip pedal on the first fixing frame, facilitates the movement of maintenance personnel on the first fixing frame, thereby facilitating subsequent maintenance of the boom assembly. Furthermore, the fixing rods on the connectors, in conjunction with the guardrails, provide protection.

The utility model relates to the field of engineering machinery, and discloses a chassis structure for an automobile crane and the automobile crane, the chassis structure comprises a box-type frame, a tail supporting leg box body and a slewing bearing mounting seat, the box-type frame extends in the front-back direction, and the cross section of the box-type frame is in an inverted trapezoidal shape; the tail supporting leg box body is arranged at the tail part of the box type frame and is used for installing the tail supporting leg mechanism, the outer end of the tail supporting leg box body is provided with a box body opening for the tail supporting leg mechanism to extend out, and the slewing bearing mounting seat is arranged between the middle part and the tail part of the box type frame. According to the chassis structure for the automobile crane and the automobile crane, the lateral hoisting performance and the tail hoisting performance of the crane can be improved, and therefore the hoisting operation efficiency is improved.