(57) Abstract:Usage: lifting device is designed to perform the functions of a conventional Jack, and also for pulling out stuck vehicles and for the loading operations within the power Jack is not limited by the height of the desired lifting for lowering. The inventive device includes a Jack 1, clamping devices, one of which includes eccentrics 7 and the other eccentric 13. One of the clamping devices is hung on the hook of the Jack, and the other is mounted on the support heel Jack. Between the eccentrics is a rope connected to the load. 4 Il. The invention relates to lifting devices and can be used for both lifting and stuck on a bad road vehicles.Known lifting device containing the Jack, rope, connected fastener Assembly with the load, the clamping devices comprising each support element, removable fixed in one of the mentioned devices for the movable body of the Jack is mounted on the eccentric element and the mount to the support structure (SU, ed.St. N 616237, ASS="ptx2">The technical result of the invention is thus the provision of lifting the individual units of the car along with the movement of the car entirely. This is achieved by the lifting device containing the Jack, rope, connected fastener Assembly with the load, the clamping devices comprising each support element, removable fixed in one of the mentioned devices for the movable body of the Jack, and mounted on the eccentric element, the attachment to the support structure of the Jack is made with the possibility of connection with the attachment to the support structure, each of the clamping devices provided with a second Cam, the first and second eccentrics of each device are located in pairs with the possibility of placing between them a rope and spring-loaded towards each other, while the movable body of the Jack is made in the form of a hook, a supporting member of another clamping device is configured to removable installation on a supporting heel Jack.In Fig. 1 shows a device with a Jack having a drive gear, with the lower position of the movable body; Fig.2 is the same, with the upper position of the movable body; Fig.3 the device is Ghana.The device consists of Jack 1, attachment 2, are connected with the power element 3 (support structure) that is installed on the supporting heel 4 base 5 (support element) with two spring-loaded toward each other by springs 6 eccentrics 7, passing between the eccentrics rope 8 load 9. On the movable hook (body) 10 Jack 1 posted ferrule (reference element) 11 with spring-loaded by springs 12 eccentrics 13, eccentrics and supporting element form the clamping devices. The working surface of the Cam disc 7 and 13 may be provided with ribs or grooves. It is controlled by the handle 14 of the Jack.The device operates as follows.To use the Jack for lifting vehicles and for lifting must be installed on the heel of the 4 base 5 with spring-loaded eccentrics 7 and the movable hook 10 clip 11 with spring-loaded eccentrics 13, skip rope 8 between the eccentrics 7 and 13. Then pin on the power element 3 and pull the rope manually through the eccentrics 7 and 13. Force down to the base 5 to lock the eccentrics 7 on the rope 8. Rotation of the handle 14 to produce a lifting hook 10 up first will engage excange hook 10, under the influence of the load 9 is performed first engagement of the rope 8 with the eccentrics 7 and "disclosure" eccentrics 13. Lower the hook 10 on the working stroke and repeat the operating cycle prior to lifting (moving) of cargo to the required value.For lowering 9 from the position shown in Fig.2 and Fig.4, it is necessary to enter between the eccentrics 7 pin diameter not less than the diameter of the rope 8 and lower the hook down 10. At the end of this stroke, removal of the pin from between the eccentrics 7 and fix them on the rope 8. Repeat this cycle until lowering 9 at the desired height.The absence of the proposed device, the drum for the rope will not only reduce the size of the device and to effect raising and lowering of the load at any height depending on the length of the rope 8.The most useful application of the invention in unconditioned garages, for example for the extraction of motor vehicle for repair and recovery of stuck vehicles in the absence of help with this transportable equipment stock increases slightly. You can use the device in the individual building in mountain conditions. Lifting device, the content of the reference element, removable secured in one of the mentioned devices for the movable body of the Jack, and mounted on the eccentric element, and the attachment to the support structure, wherein the Jack is made with the possibility of connection with the attachment to the support structure, each of the clamping devices provided with a second Cam, the first and second eccentrics of each device are located in pairs with the possibility of placing between them a rope and spring-loaded towards each other, while the movable body of the Jack is made in the form of a hook, and a supporting member of another clamping device is configured to removable installation on a supporting heel Jack.
FIELD: transport engineering; agricultural.
SUBSTANCE: in agricultural proposed device can be used as obstetrical facility for pulling out calf at calving. Proposed device contains two tubular bow-shaped articulated semiframes. Rack rests against middle of one of semiframes by end face through saddle joint. Rack is made in form of nonclosed box-shaped beam with roller-bushed chain placed between its side walls along axis of beam. One end of chain is secured through axle on said walls, and the other is connected with tension adjuster. Adjustable insert is secured on vertical wall of drive mechanism housing from inside over beam. Insert slides along upper plane of beam flange. Sprocket is secured on shaft passing through sliding bushings fitted in housing walls. Said sprocket meshes with roller-bushed chain. Two ratchets are installed on square journals of shaft symmetrically to teeth of sprocket. Ratchets engage with spring-loaded locks fitted in slots of holder and holder-ratchet mating with said ratchets. With sprocket rotating, it moves along chain together with housing of drive mechanism.
EFFECT: improved efficiency and reliability.
7 cl, 8 dwg
FIELD: mechanical engineering; load-lifting facilities; hand lever winches.
SUBSTANCE: according to invention, grips are made with tubular bodies of rectangular section. Four through holes are made in body of each grip. Upper holes are designed for tow segment cams with double-arm guides fitted-in from one side of grip body, and lower ones are designed for segment cams provided with single-arm guides fitted from other side of grip body. Double-arm lever of turn drive is two-section one, both sections of lever being connected by neck to pass wire rope from below. Each section is provided with slot with two axles fitted in cheeks of said slot. Said axles of one of sections are hinge-connected with power tie-rods hinge-connected with paired links of lower arms of double-arm guides of both grips from one of their sides. Axles of other section are hinge-connected by other power tie-rods with paired links of single-arm guides of both grips from opposite side.
EFFECT: improved reliability and wear resistance.
5 cl, 6 dwg
SUBSTANCE: balancer (1) for lifting, retaining and lowering of cargo comprises cable drum (7) to be driven by pressurized working fluid. Winch incorporates cable drum emergency brake to brake the drum in case the preset rpm is exceeded. Note here that emergency brake device comprises one spring-loaded retainer (16) secured to cable drum (7) that can be displaced to developed locking position by centrifugal force. Note here that at locked position, cable drum revolution is locked by engagement with retainer fixed relative to cable drum (7). Retainer (16) as-actuated is kept in developed position when said retainer (16) and stop interacting therewith get disengaged.
EFFECT: higher safety.
10 cl, 3 dwg