Device for tensioning reinforcement
(57) Abstract:The invention relates to construction and is intended for the manufacture of prestressed concrete products. The device consists of a cylinder with the rod, which is semi-automatic clamp. The hydraulic cylinder is connected with the stop-guides, resisting the seizure of the valve. Point blank-guides placed punch, interacting through a compression spring with wedges capture and sponges semi-automatic clamp. Semi-automatic clamp, moving with the rod from the base plate, captures the armature carries her and pulls. For anchoring the valve taut punch under the influence of the compression force of the spring supressive wedges into the sleeve grip. Cylinder with end guides, moving from the base plate, the punch reveal sponge semi-automatic clamp and the device is removed from the valve. 3 Il. The invention relates to the construction and designed for manufacturing korotkomernyh prestressed concrete products in pipeline and flow-aggregation methods for their production.A device for tensioning reinforcement, including hydrohealth is that forming a compound, keeping it separate from not combining each of the other nodes, each of which performs only the function of gidrotartrat, yoke, bearing with guide rods. This design decision leads to an increase in size, weight, complexity of the installation process. For installation and tensioning forms and pallets require conversion and installation of additional supports under the traverse rod. To connect a device with a pull-up element (valve) uses a special anchoring sleeve attached at its end, and a capture complex design. After anchoring with stretched element (valve) and tension fixation of the valve is carried out using pads installed under the anchor sleeve.It is also known a device for tensioning reinforcement, including the body of the hydraulic cylinder with a rod gripper with self-locking jaws and the locking nut .The disadvantage of this device is the design complexity of the engagement, having an external thread for sleeve, the locking taut armature. The rod has a through groove, i.e., bifurcated fork tip. Such a decision device leads to a reduction of service life, increase trudelle valve, including the emphasis made in the form of guides, a power cylinder and two semi-automatic clamp, one of which is the rod of the hydraulic cylinder and is designed to capture the reinforcement in tension, the second is the emphasis at the entrance of the valve in the device and serves for anchoring reinforcement and fixing it taut.The disadvantage of this device is that for anchoring rebar in tension using a sophisticated and expensive semi-automatic clamp. Due to the remoteness of one clip from another flow valves increases as a piece of rebar needed for gripping and tensioning, trimmed and goes to waste.The technical problem of the invention is to simplify the design of the device, the use of capture simple design with possibility of simultaneous anchoring to the fitting and fixing her taut without additional operations, as well as the exclusion or reduction of the waste valve, formed after the tension and excluding the changeover Park forms.The problem is solved in such a way that the device for tensioning the valve containing the cylinder with the rod and poloautomaticke the surrounding springs with hydraulic poisona, located in the stop-guide interoperable with semi-automatic clamp and gripper fittings, made in the form of a sleeve with clamping wedges, while another guides placed in the focus of the capture sleeve valve.The proposed device is different from the known fact that it has connected through a compression spring with hydraulic punch located at the end of the guides, with the possibility of interaction with semi-automatic clamp and grip the valve that allows the use of grips reinforcement in the form of a sleeve with clamping wedges, and place a stop-guides-blank sleeve grip, resulting in no readjustment of the Park forms and pallets to install special stops and ensures the fixation of the valve after the tension without the use of additional devices.The offset of the semi-automatic clamp, located in the rod of the hydraulic cylinder, the rod end side of the grip reinforcement reduces waste valve, which is formed after the tension.In Fig.1 shows a device for tensioning the valve when it is installed on the valve; Fig.2 is the same, in the process of tension reinforcement; Fig.3 - the same, with the liberation of the 2, having a penetration hole in which is located a semi-automatic clip 3. With the hydraulic cylinder 1 are connected to the end rails 4, which abuts the grip 5, made in the form of a sleeve 6 and pins 7. In the end rails 4 posted by the punch 8, communicating via the compression spring 9 on the one hand with the wedges 7 grips 5, and on the other with sponges semi-automatic clamp 3.The device operates as follows.The valve 10 is put on the grip 5 and rests in the base plate II. Then to the valve 10 and the grip 5 wear the device so that the end of the armature 10 has entered the semi-automatic clamp 3, is fixed in the stem 2 of the cylinder 1 and the fence-rails 4 ran into the sleeve 6 capture 5 (Fig.1). Through the nozzle 12 into the cavity of the cylinder 1 serves the oil. The rod 2 is moved from the base plate II together with semi-automatic clamp 3, getting jammed it and dragging the valve (Fig. 2). In this direction of movement of the wedges 7 capture 5 reveals, passing through the valve 10. After pulling (tension) of the valve 10 to a predetermined length stops the oil flow through the nozzle 12. Wedges 7 capture 5 compression spring 9 through the punch 8 closes the valve 10, Ankara and locking her in a tight SOS is t base plate II and capture 5 (Fig.3). Emphasis-guides 4 rest against the punch 8, moving it to semi-automatic clamp 3, and, resting on the jaws of the clamp, reveal them, freeing the device from the valve 10. After that, the device is removed from stretched and fixed fittings.Sources of information taken into account when compiling
1. USSR author's certificate 863817, class E 04 G 21/12, BI N 34, 1981.2. USSR author's certificate 1165761, class E 04 G 21/12, B. I. N 25, 1985.3. USSR author's certificate 444868, class E 04 G 21/12, B. I. N 36, 1974 (prototype). Device for tensioning the valve containing the cylinder with the rod and semi-automatic clamp and fence-rails placed in them by the seizure of the valve, characterized in that it is provided by the United compressive springs with hydraulic cylinder, a plunger located in the stop-guide interoperable with semi-automatic clamp and gripper fittings, made in the form of a sleeve with clamping wedges, while another guides placed in the focus of the capture sleeve valve.
FIELD: apparatuses for fastening reinforcing parts, for example mutually crossed reinforcing rods.
SUBSTANCE: drum around which wire for fastening reinforcing rods is wound is mounted in shaft arranged in housing. Annular recess is formed along edge of opening of housing. Diameter of said recess exceeds that of lower part of housing. At side of opening of housing drum has flange arranged in said annular recess. On inner peripheral surface of opening of drum boss there is dent for preventing drum separation from its mounting shaft. On outer edge surface of shaft there is mounting recess for engaging dent.
EFFECT: improved design preventing wire penetration into gap between housing and drum, enhanced operational reliability of drum and machine for binding reinforcing rods.
4 cl, 27 dwg
FIELD: preparing, conveying, or working-up building materials or building elements in situ, mounting and prestressing of reinforcing inserts.
SUBSTANCE: reinforcing bar binder feeds wire while rotating a wire reel installed in chamber and binds reinforcing bars. The chamber comprises the first detecting means to detect wire reel rotation and the second detecting means to detect number of second wire reel parts to be detected during reel rotation by the first detecting means. Binder body is provided with control means to control the amount of fed wire or wire torque depending on the number of second parts detected by the second detecting means.
EFFECT: increased structural simplicity and provision of automatic regulation of fed wire amount and torque thereof.
12 cl, 19 dwg
FIELD: equipment designed for fastening reinforcement by means of wire, for example for fastening mutually crossing reinforcing rods, possibly in building.
SUBSTANCE: machine includes housing; rotating drum carrying wire for fastening reinforcing rods; unit for controlling drum rotation; one or more detected objects. Detected object may be placed on lateral surface of drum. At controlling rotation of drum, said object is detected through opening of lid providing light reflection from light irradiator. Light reflected from detected object and light reflected from lid is received for determining difference between their intensity values.
EFFECT: enhanced operational reliability of machine, elimination of errors at monitoring wire consumption.
12 cl, 40 dwg
SUBSTANCE: armature guy is carried out at first in angular cells on construction contour, then in central cell, after in cells adjoining to central cell on all central axis across construction, then on cells of layer adjoining to central layer of cells in direction to external contour and at the end cells located on construction perimeter. In angular cells an armature guy is made in spans between a corner pillar and the first from it in two axes on construction location. In cells adjoining to central cell, on all central axis a guy is made on longitudinal spans on construction location, on cells of a layer adjoining to central layer of cells, guy is made in two mutually perpendicular spans, beginning from central axes concerning central cell, thus guy on different parts is carried out by different devices.
EFFECT: increase of load-carrying capacity of construction floorings and reliability of devices for armature guy.
7 cl, 8 dwg, 1 ex
SUBSTANCE: invention is attributed to construction engineering and can be used for binding of reinforcement cages of concrete products. Reinforcement hook contains shaft on one end of which handle is installed which can be rotated, and the second end of the shaft is tapered and bended as hook. Lever is hinged on the handle. The lever is capable to change position relative to handle. Two more levers are installed on shaft of reinforcement hook which levers can travel along hook and relative to each other and they are interconnected by elastic element. As a result due to simple fastening elements using, binding with wire pieces without loop is provided and production is cheapened.
EFFECT: cheapening of construction.
FIELD: construction industry.
SUBSTANCE: mechanism is intended for attaching extended elements to each other, and especially such elements as reinforced bars and electric cables by means of at least one wire. Mechanism consists of two jaws (6, 7) moved down on the elements to be connected (8). There are provisions made for means (20) of supplying wire (12) along guide surface (10) of the first jaw (6) to guide surface of (11) the second jaw (7), thus forming a wire loop which envelopes the above elements on three sides, and in this case ends of this loop can be twisted on the fourth side of elements (8). Twisting means consist of device (14) rotating relative to jaws (6, 7) and guiding the wire (12) at its supply to jaw and removal from jaw.
EFFECT: providing possibility of wire straightening with overcoming the resistance by the value required for twisting the wire loop ends.
25 cl,13 dwg
FIELD: engines and pumps.
SUBSTANCE: reinforcing bar wire-tying machine incorporates wire drum with data detection and wire identification device designed to detect and identify wire on the drum flange side surface and allows wire twist force or feed amount control proceeding from the wire identification data detected in starting wire-tying with the help of the rotation detection lever. The drum comprises cylindrical bush with a pair of flanges on its sides and has an extending section on the outer side surface with a reflecting symbol on the bush outer side surface. The type of wire coiled around the said drum is determined from the number of disclosed reflecting symbols when the detection signal is input from the aforesaid lever. The wire data is detected at the drum high-rotation wire-tying speed, not in coiling the wire on the drum.
EFFECT: reliable wire-type data detection.
21 cl, 9 dwg
SUBSTANCE: method includes use of a piece of the wire as fastening element which part is bent with formation of the lug for grasp with reinforcement cage, fastening element supply under flooring of reinforcing bars, lug grasp with reinforcement cage, throwing of fastening element through it from condition of an arrangement of flooring of reinforcing bars in wire loop and a tightening of a loop several turns of the reinforcement cage at deduction of a tail of the fastening element. For this purpose use the manual delivery unit; the container with a holder for placing of the fastening elements is established in its case, submitting gear and a clip. The manual delivery unit is brought to flooring of reinforcing bars, the fastening element is taken from the container, and the fastening element supply under flooring of reinforcing bars is carried out by its telescopings by means of the delivery unit. Holding of a tail of the fastening element at tightening of a loop by turns of the reinforcement cage is performed by means of a clip of the mentioned device which sizes allow to carry out joining in close places.
EFFECT: labour productivity increases.
FIELD: construction industry.
SUBSTANCE: reinforcing bars of reinforced concrete structures are set into place and attached manually with a reinforcing hook using fasteners. A piece of wire is used as fastener, and some part thereof is bent into halves so that a closed or open loop with a tail piece can be formed of one or two wire strands. Reinforcing hook is equipped with a lock that allows maintaining the fastener's tail piece.
EFFECT: invention allows improving labour capacity when attaching bars by means of reinforcing hook.
FIELD: mechanical engineering.
SUBSTANCE: invention refers to mechanical engineering and can be used in machine for reinforcement material binding with wire. The reel is fitted with reel rotation control sensor. The reel has two flanges, inner cylinder area where reel mounting shaft is inserted, and outer cylinder area around which wire is spooled. Between inner and outer cylinder area there are multiple objects with quantitatively differing physical characteristics which objects are detected by reel rotation control sensor.
EFFECT: reliable wire consumption detection is provided.
4 cl, 40 dwg