Reinforcement cage rotation tension force measuring device

Abstract

The utility model discloses a reinforcement cage rotary tension force measuring device, which relates to the technical field of mechanical property detection equipment and comprises a reinforcement cage main reinforcement straightening device used for actively rotating and tensioning one end of a reinforcement cage, the other end of the reinforcement cage is mounted on an active rotary force measuring device, and the active rotary force measuring device is used as an active fixed end. The reinforcement cage is tensioned (tightened) through the driven reinforcement cage main reinforcement straightening device so as to ensure uniform winding of spiral reinforcements, the reinforcement cage main reinforcement straightening device further comprises a control system, and when the reinforcement cage main reinforcement straightening device tensions the reinforcement cage, the tensioning reaction force can be transmitted to the tensioning force detection mechanism along the tensioned reinforcement cage and is detected by the tensioning force detection mechanism. The stress condition of the reinforcement cage can be detected in real time through detection of the tensioning force, smooth production of the reinforcement cage is guaranteed, meanwhile, the production quality of the reinforcement cage is guaranteed, and when the tensioning force on the reinforcement cage reaches a limit value (a set value), the reinforcement cage main reinforcement straightening device is controlled by the control system to stop tensioning the reinforcement cage.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of mechanical property detection equipment, and particularly relates to a reinforced cage rotating tensioning force measuring device. BACKGROUND

[0002] The prestressed reinforced cage is a steel mesh framework of a conical concrete pole and a cylindrical concrete pipe pile, and the reinforced cage needs to be tensioned to a certain tensioning tension to be able to be spirally wound. At present, the common tensioning process in the industry has the following two kinds: 1. using an electric hoist to tension, fixing one end of the reinforced cage on a steel frame stand column, connecting the other end to an electric hoist hook, manually operating the electric hoist, stopping after the reinforced cage is tensioned to rely on the alarm value set by the wire rope load limiter, and then spirally winding. The tensioning process has low and inaccurate tensioning force detection accuracy. It is completely judged by the experience of workers, and the tensioning tension is large or small in production, which leads to uneven and loose spirally wound reinforced cage and unguaranteed quality. And when the pressure is too large, there is a safety hazard in using the electric hoist to tension. 2. purchasing a commercially available semi-automatic winding machine, which adopts a mechanical structure of a turbine worm to tension without tensioning force detection. In the tensioning process, the operator momentarily stops the tensioning motor to reach a certain torque when the reinforced cage is quickly tensioned to the position, and stops the machine after reaching the torque value set by the frequency converter, so that the reinforced cage is stretched flat. This tensioning process also depends on the proficiency of the operator, and the quality and safety cannot be guaranteed, and the equipment is often damaged due to overload.

[0003] The above two tensioning processes will cause the tensioning force to rapidly rise due to slight tensioning elongation after the reinforced cage is tensioned. Since it is difficult for workers to judge the tensioning force, the tensioning tension of each reinforced cage of the same specification deviates greatly, which affects the product quality. If the tensioning tension is too large, the reinforced cage and the equipment will be damaged, and even personnel safety hazards will be caused. If the tensioning tension is too small, the end face size of the reinforced cage will be uneven, the spirally wound reinforcement will be inconsistent, and the thickness of the pole protection layer and the mechanical properties will be directly affected.

[0004] In order to solve the above technical problems, it is urgent to design a reinforced cage rotating tensioning force measuring device. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a reinforced cage rotating tensioning force measuring device, which is provided with a tensioning force detection assembly, can monitor the change of the tensioning force of the reinforced cage in real time in the process of tensioning, realizes accurate control, ensures that the reinforced cage can be uniformly tensioned, and improves the production quality of the pole reinforced cage. The specific technical scheme is as follows:

[0006] A reinforced cage rotating tensioning force measuring device, which comprises a reinforced cage main reinforcement straightening device for rotating tensioning one end of the reinforced cage, and the other end of the reinforced cage is installed on a driving rotating force measuring device.

[0007] The active rotation force measuring device comprises a mounting base, a rotation driving mechanism, a tension force detecting mechanism, a pre-tightening mechanism and a tension mounting assembly. The rotation driving mechanism is mounted on the mounting base, and the output end of the rotation driving mechanism penetrates through the mounting base. The tension force detecting mechanism is mounted on the mounting base through the pre-tightening mechanism and is connected with the output end of the rotation driving mechanism. The tension mounting assembly is mounted on the output end of the rotation driving mechanism for connecting with the reinforcement cage, so that the tension force generated when the reinforcement cage is tensioned is transmitted to the tension force detecting mechanism through the tension mounting assembly to be detected by the tension force detecting mechanism.

[0008] Preferably, the mounting base comprises a mounting bottom plate, reinforcing rib plates, a mounting seat and a lifting hook. The mounting bottom plate is fixedly installed in a working area by bolts. The mounting seat is vertically installed on the mounting bottom plate. The reinforcing rib plates are installed on opposite sides of the mounting seat to reinforce the mounting seat. The lifting hook is installed on the mounting seat. The mounting seat is provided with a mounting hole penetrating therethrough.

[0009] Preferably, the rotation driving mechanism comprises a bearing, a rotation main shaft, a synchronous pulley, a driving pulley, a main shaft rotation servo motor, a synchronous belt and a servo motor seat. The bearing is installed in the mounting hole. The main shaft rotation servo motor is installed on the mounting bottom plate through the servo motor seat. The driving pulley is installed on the output end of the main shaft rotation servo motor. The rotation main shaft is installed on the bearing. The synchronous pulley is installed at one end of the rotation main shaft facing the main shaft rotation servo motor. The synchronous belt is sleeved on the synchronous pulley and the driving pulley.

[0010] Preferably, the tension force detecting mechanism is sleeved on a section of the rotation main shaft provided with the synchronous pulley. The tension force detecting mechanism is a ring-shaped force sensor.

[0011] Preferably, the pre-tightening mechanism comprises a locking double nut, a pre-tightening mounting sleeve, a pre-tightening mounting bearing, a guide rod and a guide mounting seat. The pre-tightening mounting bearing is installed in the pre-tightening mounting sleeve. The pre-tightening mounting sleeve is sleeved on the rotation main shaft. The guide rod is installed on the mounting seat. The guide mounting seat is installed on the pre-tightening mounting sleeve. The pre-tightening mounting sleeve is oriented and slidably arranged on the rotation main shaft through the guide mounting seat. The rotation main shaft is provided with an external thread on a section between the pre-tightening mounting sleeve and the synchronous pulley. The locking double nut is threadedly connected with the rotation main shaft, so that the ring-shaped force sensor can be pressed tightly to the mounting seat through the pre-tightening mounting sleeve when the locking double nut is adjusted.

[0012] Preferably, the tensioning installation assembly comprises a reinforcement cage tensioning head, a tensioning screw rod, a tensioning installation support, an adjusting screw rod nut and a protective bearing plate, the tensioning installation support is installed on the other end of the rotating main shaft away from the synchronous pulley, the reinforcement cage tensioning head is installed on the tensioning screw rod, one end of the reinforcement cage is installed on the reinforcement cage tensioning head, the adjusting screw rod nut is slidingly installed on the tensioning screw rod, the tensioning screw rod is installed on the tensioning installation support through the bearing of the protective bearing plate, the protective bearing plate is installed on the tensioning installation support, and the end surface of the adjusting screw rod nut abuts against the protective bearing plate.

[0013] Preferably, the tensioning installation assembly further comprises a tensioning head support frame, which is used to place the tensioning installation support when the active rotating force measuring device is not used.

[0014] Preferably, the tensioning installation assembly further comprises a control system, which is electrically connected with the reinforcement cage main reinforcement straightening device and the tensioning force detection mechanism, so as to control the reinforcement cage main reinforcement straightening device to stop tensioning when the tensioning force value reaches a limited value.

[0015] Compared with the prior art, the tensioning installation assembly has the following beneficial effects:

[0016] 1. The tensioning installation assembly is provided with a tensioning force detection mechanism, which can display the change of the tensioning force value in the process of tensioning the reinforcement cage in real time while the reinforcement cage is rotating, reduce the tensioning force error between each reinforcement on the reinforcement cage, improve the quality of product production, ensure the stability of product quality, and realize accurate rotation and tensioning of the reinforcement cage through servo control.

[0017] 2. The active rotating force measuring device can realize rapid collection of the tensioning force and accurate control of the tensioning degree of the reinforcement cage, lock the equipment when the tensioning force value reaches a target value, i.e. the reinforcement cage main reinforcement straightening device stops tensioning the reinforcement cage, ensure the safety in the production process, and the setting of the force measuring device can effectively protect the reinforcement cage, the equipment and the workers. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. In all the drawings, similar elements or parts are generally identified by similar reference signs. In the drawings, the elements or parts are not necessarily drawn according to the actual proportions.

[0019] Fig. 1 is a schematic diagram of the overall structure of the present application.

[0020] Fig. 2It is the integral structure (not in use state) installation schematic view of the utility model.

[0021] Main figure mark explanation:

[0022] 100-active rotation force measuring device, 110-installation base, 111-installation bottom plate, 112-reinforcing rib plate, 113-mounting seat, 114-hoisting hook, 120-rotation driving mechanism, 121-rotation main shaft, 122-synchronous pulley, 123-driving pulley, 124-main shaft rotation servo motor, 125-synchronous belt, 126-servo motor seat, 130-tension detection mechanism, 140-pre-tightening mechanism, 141-locking double nut, 142-pre-tightening installation sleeve, 143-guide rod, 144-guide mounting seat, 150-tension installation assembly, 151-reinforced cage tensioning head, 152-tensioning screw rod, 153-tension installation support, 154-adjusting screw nut, 155-protection bearing plate, 200-tensioning head support frame. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0024] In the description of the utility model, it should be explained that the orientation or position relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "top", "bottom", "top surface", "bottom surface", "inner", "outer", "inner side", "outer side" and the like is the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model.

[0025] In the description of the utility model, the meaning of several is one or more, the meaning of multiple is more than two, greater than, less than, more than and the like are not included in the number, above, below, within and the like are included in the number. If the terms "first", "second", "third" are described, they are only for the purpose of description and distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0026] In the description of the utility model, need explanation, unless another explicit provision and limitation, term " install " " link " " connection " " set " should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can pass through intermediate medium indirectly connected, can be two element inside the intercommunication.For ordinary skilled person in the art, can understand the concrete meaning of above-mentioned term in the utility model according to specific circumstances.The embodiment of the utility model is described below according to the overall structure.

[0027] Embodiment

[0028] As Figs. 1-2 The utility model discloses a reinforced cage rotation tension force measuring device, including the reinforced cage main reinforcement straightener for the reinforced cage one end driven rotation and tension, the other end of the reinforced cage is installed in the driving rotation force measuring device 100, with driving rotation force measuring device 100 as driving fixed end, through reinforced cage main reinforcement straightener tight ( taut ) the reinforced cage to ensure the smooth winding of helical rib, improve the production quality of reinforced cage;

[0029] Preferably, the driving rotation force measuring device 100 includes installation base 110, rotation drive mechanism 120, tension force detection mechanism 130, pre-tightening mechanism 140 and tension installation component 150, the installation base 110 is erected and installed in the work area, the rotation drive mechanism 120 is installed on the installation base 110, the tension force detection mechanism 130 is installed on the installation base 110 through the pre-tightening mechanism 140, the tension force detection mechanism 130 is connected with the output end of the rotation drive mechanism 120, the output end of the rotation drive mechanism 120 passes through the installation base 110 and is provided with the tension installation component 150, one end of the reinforced cage is connected with the tension installation component 150, when the reinforced cage main reinforcement straightener tension, the tension force generated on the reinforced cage is transmitted to the tension force detection mechanism 130 through the tension installation component 150 to be detected by the tension force detection mechanism 130;

[0030] In some preferred embodiments, a control system is further included, which is selected from a PLC, and the reinforcing cage main reinforcement straightening device and the tension detection mechanism 130 are electrically connected to the control system. When the reinforcing cage main reinforcement straightening device is tensioning the reinforcing cage, the tension detection mechanism 130 can detect the tension on the reinforcing cage in real time, so as to avoid the tension on the reinforcing cage being too large to cause a safety accident, and also to prevent the tension on the reinforcing cage being insufficient to affect the quality of the reinforcing cage production. When the tension on the reinforcing cage reaches a limit value (set value), the reinforcing cage main reinforcement straightening device is controlled to stop tensioning the reinforcing cage by the control system.

[0031] In some preferred embodiments, the mounting base 110 includes a mounting bottom plate 111, reinforcing rib plates 112, a mounting seat 113, and a lifting hook 114. The mounting bottom plate 111 is fixedly installed in a work area by bolts. The mounting seat 113 is vertically installed on the mounting bottom plate 111. The reinforcing rib plates 112 are installed on opposite sides of the mounting seat 113 to reinforce the mounting seat 113. The lifting hook 114 is installed on the mounting seat 113. Since the active rotary force measuring device 100 is too heavy, the lifting hook 114 is provided to facilitate the crane to hoist and transport the device to a designated work area for installation. The mounting seat 113 is provided with a mounting hole.

[0032] In some preferred embodiments, the rotary driving mechanism 120 includes a bearing, a rotary main shaft 121, a synchronous pulley 122, a driving pulley 123, a main shaft rotary servo motor 124, a synchronous belt 125, and a servo motor seat 126. The bearing is installed in the mounting hole. The main shaft rotary servo motor 124 is installed on the mounting bottom plate 111 through the servo motor seat 126. The driving pulley 123 is installed on the output end of the main shaft rotary servo motor 124. The rotary main shaft 121 is installed on the bearing. The synchronous pulley 122 is installed at one end of the rotary main shaft 121 facing the main shaft rotary servo motor 124. The synchronous belt 125 is sleeved on the synchronous pulley 122 and the driving pulley 123. The rotation of the rotary main shaft 121 is driven by the main shaft rotary servo motor 124. It is worth noting that the main shaft rotary servo motor 124 is electrically connected to the control system and is controlled by the control system.

[0033] In some preferred embodiments, the tension detection mechanism 130 is sleeved on the rotating main shaft 121 and located on a section provided with the synchronous pulley 122, the tension detection mechanism 130 is a ring-shaped force sensor, the ring-shaped force sensor is electrically connected with the control system, the pre-tightening mechanism 140 comprises locking double nuts 141, a pre-tightening mounting sleeve 142, a pre-tightening mounting bearing, a guide rod 143 and a guide mounting seat 144, the pre-tightening mounting bearing is mounted in the pre-tightening mounting sleeve 142, the pre-tightening mounting sleeve 142 is sleeved on the rotating main shaft 121, the guide rod 143 is mounted on the mounting seat 113, the guide mounting seat 144 is mounted on the pre-tightening mounting sleeve 142, the pre-tightening mounting sleeve 142 is oriented and slid on the rotating main shaft 121 through the guide mounting seat 144, the rotating main shaft 121 is provided with external threads on a section between the pre-tightening mounting sleeve 142 and the synchronous pulley 122, the locking double nuts 141 are threadedly connected with the rotating main shaft 121, the pre-tightening mounting sleeve 142 is pressed against the mounting seat 113 by adjusting the locking double nuts 141, the ring-shaped force sensor can monitor the tension of the reinforcement cage in real time when the reinforcement cage is rotated and tensioned, and can timely give an early warning.

[0034] In some preferred embodiments, the tension installation assembly 150 comprises a reinforcement cage tensioning head 151, a tensioning lead screw 152, a tension installation support 153, an adjusting lead screw nut 154 and a protective bearing plate 155, the tension installation support 153 is mounted on the other end of the rotating main shaft 121 away from the synchronous pulley 122, the reinforcement cage tensioning head 151 is mounted on the tensioning lead screw 152, one end of the reinforcement cage is mounted on the reinforcement cage tensioning head 151, the adjusting lead screw nut 154 is slidably mounted on the tensioning lead screw 152 (or the adjusting lead screw nut 154 is threadedly connected with the tensioning lead screw 152), the tensioning lead screw 152 is mounted on the tension installation support 153 through the support of the protective bearing plate 155, the protective bearing plate 155 is mounted on the tension installation support 153, the end surface of the adjusting lead screw nut 154 abuts against the protective bearing plate 155, the adjusting lead screw nut 154 can be adjusted according to the installation position of the reinforcement cage, that is, the adjusting lead screw nut 154 is moved along the axis of the tensioning lead screw 152 by rotating the adjusting lead screw nut 154, the position of the adjusting lead screw nut 154 on the tensioning lead screw 152 is adjusted, and the protective bearing plate 155 in different positions is clamped by the adjusting lead screw nut 154 to adapt to the installation of reinforcement cages of different lengths.

[0035] It is worth mentioning that the active rotation force measuring device 100 is placed on the tensioning head support frame 200 when not in use, so as to prevent the tensioning installation assembly 150 from being bent due to its excessive weight and affecting the service life of the device.

[0036] In summary, the steel reinforcement cage rotation tensioning force measuring device provided by the utility model can display the change of the tensioning force value in real time while the steel reinforcement cage is rotating, can reduce the tensioning force error between each steel bar on the steel reinforcement cage, can improve the quality of product production, can ensure the stability of product quality, can realize accurate rotation and tensioning of the steel reinforcement cage by adopting servo control, the active rotation force measuring device provided by the utility model can realize rapid collection of the tensioning force and accurate control of the tensioning degree of the steel reinforcement cage, can lock the equipment when the tensioning force value reaches the target value, i.e., the straightening device of the main steel bars of the steel reinforcement cage stops tensioning the steel reinforcement cage, can ensure the safety in the production process, and meanwhile, the arrangement of the force measuring device can effectively protect the steel reinforcement cage, the equipment and the workers.

[0037] The foregoing description of specific exemplary embodiments of the utility model is for the purpose of explanation and illustration, and these descriptions are not intended to limit the utility model to the precise forms disclosed, and it is apparent that many modifications and variations are possible in light of the above teachings, although embodiments of the utility model have been shown and described, the specific embodiments are merely illustrative of the utility model, and they are not intended to limit the utility model, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner, the exemplary embodiments are selected and described for the purpose of explaining the specific principles of the utility model and its practical application, so that those skilled in the art can make modifications, replacements, variations and various different selections and changes to the embodiments without creative contribution after reading the specification, as long as they are within the scope of the claims of the utility model, they are protected by the patent law.

Claims

1. A rotating tensioning force measuring device for reinforcing cages, characterized in that, It includes a main bar straightening device for passively rotating and tensioning one end of the steel cage, and the other end of the steel cage is mounted on an active rotation force measuring device (100); The active rotation force measuring device (100) includes a mounting base (110), a rotation drive mechanism (120), a tension force detection mechanism (130), a pre-tightening mechanism (140), and a tensioning installation assembly (150). The rotation drive mechanism (120) is mounted on the mounting base (110), and the output end of the rotation drive mechanism (120) passes through the mounting base (110). The tension force detection mechanism (130) is mounted on the mounting base (110) through the pre-tightening mechanism (140) and is connected to the output end of the rotation drive mechanism (120). The tensioning installation assembly (150) is mounted on the output end of the rotation drive mechanism (120) for connection with the reinforcing cage, so that the tension force generated when the reinforcing cage is tensioned is transmitted to the tension force detection mechanism (130) through the tensioning installation assembly (150) for detection by the tension force detection mechanism (130).

2. The steel cage rotation tensioning force measuring device according to claim 1, characterized in that, The mounting base (110) includes a mounting base plate (111), reinforcing ribs (112), a mounting seat (113), and a lifting hook (114). The mounting base plate (111) is fixedly installed in the working area by bolts. The mounting seat (113) is vertically installed on the mounting base plate (111). The reinforcing ribs (112) are installed on opposite sides of the mounting seat (113) to reinforce the mounting seat (113). The lifting hook (114) is installed on the mounting seat (113). The mounting seat (113) has through mounting holes.

3. The steel cage rotation tensioning force measuring device according to claim 2, characterized in that, The rotary drive mechanism (120) includes a bearing, a rotary spindle (121), a synchronous pulley (122), a drive pulley (123), a spindle rotary servo motor (124), a synchronous belt (125), and a servo motor mount (126). The bearing is installed in the mounting hole. The spindle rotary servo motor (124) is installed on the mounting base plate (111) through the servo motor mount (126). The drive pulley (123) is installed on the output end of the spindle rotary servo motor (124). The rotary spindle (121) is installed on the bearing. The synchronous pulley (122) is installed at one end of the rotary spindle (121) facing the spindle rotary servo motor (124). The synchronous belt (125) is sleeved on the synchronous pulley (122) and the drive pulley (123).

4. The steel cage rotation tensioning force measuring device according to claim 3, characterized in that, The tension force detection mechanism (130) is sleeved on a section of the rotating main shaft (121) where the synchronous pulley (122) is located. The tension force detection mechanism (130) is a ring-shaped force sensor.

5. The steel cage rotation tensioning force measuring device according to claim 4, characterized in that, The pre-tightening mechanism (140) includes a locking double nut (141), a pre-tightening mounting sleeve (142), a pre-tightening mounting bearing, a guide rod (143), and a guide mounting seat (144). The pre-tightening mounting bearing is installed inside the pre-tightening mounting sleeve (142), which is sleeved on the rotating spindle (121). The guide rod (143) is installed on the mounting seat (113), and the guide mounting seat (144) is installed on the pre-tightening mounting sleeve (142). The sleeve (142) is slidably mounted on the rotating spindle (121) via the guide mounting seat (144). The rotating spindle (121) has an external thread on the section between the pre-tightening mounting sleeve (142) and the synchronous pulley (122). The locking double nut (141) is threadedly connected to the rotating spindle (121) so that when adjusting the locking double nut (141), the annular force sensor can be pressed onto the mounting seat (113) via the pre-tightening mounting sleeve (142).

6. The steel cage rotation tensioning force measuring device according to claim 5, characterized in that, The tensioning installation assembly (150) includes a rebar cage tensioning head (151), a tensioning screw (152), a tensioning installation bracket (153), an adjusting screw nut (154), and a protective bearing plate (155). The tensioning installation bracket (153) is installed on the other end of the rotating main shaft (121) away from the synchronous pulley (122). The rebar cage tensioning head (151) is installed on the tensioning screw (152), and one end of the rebar cage is installed on the rebar cage tensioning head (151). The adjusting screw nut (154) is slidably installed on the tensioning screw (152). The tensioning screw (152) is installed on the tensioning installation bracket (153) by the support of the protective bearing plate (155). The protective bearing plate (155) is installed on the tensioning installation bracket (153), and the end face of the adjusting screw nut (154) abuts against the protective bearing plate (155).

7. A rotating tensioning force measuring device for a reinforcing cage according to claim 6, characterized in that, It also includes a tensioning head support frame (200), which is used to support the tensioning installation bracket (153) when the active rotation force measuring device (100) is not in use.

8. The steel cage rotation tensioning force measuring device according to claim 1, characterized in that, It also includes a control system, which is electrically connected to the main reinforcement straightening device of the steel cage and the tension detection mechanism (130) to control the main reinforcement straightening device of the steel cage to stop tensioning when the tension value reaches the limit value.

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