Horizontal screw type headstock gear

[0014] The drawings show a specific embodiment of the invention. The horizontal screw hoist is mainly composed of a power machine, a transmission transmission system, a lead screw, a nut, a base and a hand crank. The lead screw is driven to rotate by a transmission part, and is characterized in that the lead screw is set horizontally, which is a continuous Body screw 2, that is, a screw with two coaxial wires connected with opposite threads. The middle part of the two threads of the conjoined screw 2 is a light rod. The light rod is equipped with a transmission transmission component connected with the main transmission transmission system and is on the machine. The seat 18 is positioned, and a mechanical device is provided on the two nuts 5, which is connected to the gate through the mechanical facilities and connecting pieces that are matched with it. The transmission and transmission component of the conjoined screw 2 on the smooth rod is a worm gear reducer 3. The worm gear is arranged vertically, and the conjoined screw 2 fixedly connected to it is positioned in the thrust bearings 4 provided on both sides of the worm wheel in the housing. The mechanical device set on the nut 5 is a symmetrically arranged movable pulley block 7, the movable pulley shaft 6 is fixedly connected to the nut 5 and the axis is perpendicular, and the mechanical facilities matched with it are the fixed pulley block 8 and the corresponding fixed pulley set on the frame bridge. The reversing pulley block 9 arranged at the lifting point mouth, the connecting piece steel wire rope 10 bypasses the moving, fixed pulley blocks 7, 8 and the reversing pulley block 9 and is connected to the gate through the hanging head 11 provided at the end. Between the base 18 and the fixed pulley block 8 there is also a movable pulley block support guide rod 15 parallel to the connecting screw 2, which respectively pass through a hole provided at the end of a movable pulley shaft for sliding fit. Limit switches 13 are provided at both ends of the movable pulley block supporting guide rod 15.

[0015] The horizontal screw hoist is used in figure 1 Among them, one or two conjoined screw rods 2 connected by coaxial wires with opposite screw threads are horizontally arranged on the machine base 18 in the direction of the gate. The part between the two threads is a light rod, and the light rod part is connected to the worm wheel on the machine base 18. The worm gear of the worm reducer 3 is fixedly connected with the worm gear, and the two sides of the worm gear in the housing are provided with thrust bearings 4, and the conjoined screw 2 is positioned in it. A nut 5 is set symmetrically on both sides of the conjoined screw 2, according to the tonnage of the gate, choose figure 2 , image 3 ,or Figure 4 In the form shown, a movable pulley block 7 is provided on the nut 5, and the fixed pulley block 8 matched with it is set on the preset base 14 on the frame bridge outside the two ends of the connecting screw 2, and is suspended on the frame bridge A reversing pulley block 9 is provided at the point. The wire rope 10 is horizontally wound out of the moving pulley block 7 and the fixed pulley block 8 and then is reversed by the reversing pulley block 9 and the lower end is positioned on the fixed sleeve 12 on the hanger 11. The pulley provided at one end of the worm of the worm gear reducer 3 is connected to the motor 16 through a belt drive transmission system 17. In addition, a shield 1 is provided outside the host. After starting up, the motor 16 drives the conjoined lead screw 2 to rotate through the belt drive transmission system 17, and drives the nut 5 to move left and right, and drives the movable pulley group 7 and the fixed pulley group 8 to work. With the cooperation of the limit switch 13, the hanger at the end of the wire rope 10 11 Pull the gate to complete the opening and closing work.