A multifunctional prestressed multi-steel tensioning machine

Abstract

The invention discloses a multifunctional prestressed multi-steel bar tensioning machine, which mainly relates to the technical field of precast concrete component production, including a frame, the frame is installed on a walking mechanism, a hydraulic pump station, a frame moving oil cylinder, a synchronous component, and a tensioning oil cylinder component are arranged on the frame, one end of the frame moving oil cylinder is connected to the frame, and the other end is connected to the tensioning oil cylinder component through the synchronous component, a guide groove is arranged on the inner side of the frame, the frame moving oil cylinder moves in the direction of the guide groove, the tensioning oil cylinder component comprises a tensioning oil cylinder and a tensioning oil cylinder frame, a tensioning pedestal is arranged on one side of the frame, a pulling plate component is arranged on the tensioning pedestal, the tensioning oil cylinder is movably connected to the pulling plate component through a pulling plate pin, baffle grooves are arranged on both sides of the tensioning pedestal, and a movable tensioning baffle is arranged in the baffle groove, which effectively solves the problems of low efficiency of tensioning and releasing of prestressed tendons and inaccurate tensioning force values ​​on the production line.

Description

Technical Field

[0001] The invention mainly relates to the technical field of precast concrete component production, in particular to a multifunctional prestressed multi-steel bar tensioning machine. Background Art

[0002] In order to save energy and reduce emissions, protect the environment, and advocate green buildings, the country is vigorously promoting the implementation of residential industrialization. The construction industry as a whole is upgrading and transforming from traditional construction methods to building industrialization. Building industrialization has become the key direction for the future development of the construction industry. The industrialized production of precast concrete components has become the key to achieving building industrialization. Among them, prestressed precast components can use less steel bars than ordinary precast components at the same strength, which greatly reduces the cost of precast components and has strong competitiveness in the market. Therefore, prestressed technology is widely used in precast component production.

[0003] In general, the existing prestressing tensioning and releasing equipment usually consists of a tensioning machine that can tension a single steel bar, tensioning the steel bar one by one, and directly cutting the steel bar with prestressing to release the steel bar. With regard to this method, regarding the tensioning of the steel bar, if the length of the long-line formwork is too long, and the tensioning stroke of the tensioning machine is less than the required elongation strength of the steel bar, the tensioning machine needs to tension each steel bar multiple times, which is very inefficient, and it is difficult to ensure that each steel bar has the same prestress; regarding the release of the steel bar, directly cutting the steel bar with prestressing, when the steel bar is cut, the prestress is released instantly, and the possibility of damaging the precast concrete components is very high, and it can only be released one by one, which is very inefficient. Summary of the invention

[0004] In view of the deficiencies and defects in the prior art, the object of the present invention is to provide a multifunctional prestressed multi-steel tensioning machine which has a reasonable structure, is easy to operate, and can realize group tensioning and group release of prestressed steel bars.

[0005] In order to solve the above technical problems, the present invention adopts the following technical scheme: a multifunctional prestressed multi-steel bar tensioning machine, comprising a frame, which is installed on a walking mechanism, and a hydraulic pump station, a frame moving cylinder, a synchronization component, and a tensioning cylinder component are arranged on the frame. One end of the frame moving cylinder is connected to the frame, and the other end is connected to the tensioning cylinder component through the synchronization component. A guide groove is provided on the inner side of the frame, and the frame moving cylinder moves in the direction of the guide groove. The tensioning cylinder component comprises a tensioning cylinder and a tensioning cylinder frame. A tensioning pedestal is provided on one side of the frame, and a pulling plate component is provided on the tensioning pedestal. The tensioning cylinder is movably connected to the pulling plate component through a pulling plate pin shaft, and baffle grooves are provided on both sides of the tensioning pedestal, and a movable tensioning baffle is provided in the baffle groove.

[0006] As a further improvement of the present invention, the synchronization assembly includes a rotating shaft and a rack, and gears are provided at both ends of the rotating shaft. The rotating shaft and the gear are installed and fixed under the guide grooves on both sides of the frame through seat bearings. The rack is installed under both sides of the tensioning cylinder assembly, and the gear is meshed with the rack.

[0007] As a further improvement of the present invention, the hydraulic pump station is installed in the middle position of the rear side inside the frame.

[0008] As a further improvement of the present invention, the tensioning cylinder assembly is installed on the front side of the interior of the frame.

[0009] Compared with the prior art, the present invention has the following beneficial effects: the present invention effectively solves the problems of low efficiency in tensioning and releasing of prestressed tendons and inaccurate tensioning force values ​​on the production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The present invention will be further described below in conjunction with the accompanying drawings:

[0011] Figure 1 A perspective view of the present invention;

[0012] Figure 2 It is a front view of the present invention;

[0013] Figure 3 A top view of the present invention;

[0014] Figure 4 It is a schematic diagram of the connection structure of the synchronization components of the present invention;

[0015] Figure 5 It is a schematic diagram of the process structure of the present invention I;

[0016] Figure 6 It is the process structure schematic diagram II of the present invention;

[0017] Figure 7 It is the process structure schematic diagram III of the present invention;

[0018] Figure 8 It is the process structure schematic diagram IV of the present invention;

[0019] Fig. 9 It is a schematic diagram V of the process structure of the present invention;

[0020] In the figure: 1 walking mechanism, 2 frame, 3 hydraulic pump station, 4 frame moving cylinder, 5 synchronization assembly, 6 tensioning cylinder assembly, 61 tensioning cylinder, 62 tensioning cylinder frame, 7 tensioning pedestal, 8 tensioning plate assembly, 9 tensioning plate pin, 10 tensioning baffle, 11 prestressed tendons, 12 anchor, 13 baffle groove, 14 guide groove, 15 rotating shaft, 16 seat bearing, 17 gear, 18 rack. DETAILED DESCRIPTION

[0021] In order to make the technical solution and beneficial effects of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0022] Figures 1 to 3 A structural schematic diagram of the present invention is given, which includes a frame 2, the frame 2 is installed on a walking mechanism 1, a hydraulic pump station 3, a frame moving cylinder 4, a synchronization component 5, and a tensioning cylinder component 6 are arranged on the frame 2, one end of the frame moving cylinder 4 is connected to the frame 2, and the other end is connected to the tensioning cylinder component 6 through the synchronization component 5, a guide groove 14 is arranged on the inner side of the frame 2, the frame moving cylinder 4 moves in the direction of the guide groove 14, and the hydraulic pump station 3 is installed at the middle position of the rear side inside the frame 2. The tensioning cylinder component 6 is installed on the front side inside the frame 2, the tensioning cylinder component 6 includes a tensioning cylinder 61 and a tensioning cylinder frame 62, a tensioning pedestal 7 is arranged on one side of the frame 2, a pull plate component 8 is arranged on the tensioning pedestal 7, the tensioning cylinder 61 is movably connected to the pull plate component 8 through a pull plate pin 9, baffle grooves 13 are arranged on both sides of the tensioning pedestal 7, and a movable tensioning baffle 10 is arranged in the baffle groove 13.

[0023] Figure 4 This is a schematic diagram of the connection structure of the synchronization component, the synchronization component 5 includes a rotating shaft 15 and a rack 18, and gears 17 are provided at both ends of the rotating shaft 15. The rotating shaft 15 and the gear 17 are fixed under the guide grooves 14 on both sides of the frame 2 through seat bearings 16, and the rack 18 is installed under both sides of the tensioning cylinder assembly 6. The gear 17 is meshed with the rack 18. When the frame moving cylinder 4 controls the movement of the tensioning cylinder assembly 6, since the rotating shaft 15 is connected between the two gears 17, it can ensure that the gears 17 and the rack 18 on both sides are synchronously meshed, so the synchronous movement of the two sides of the tensioning cylinder assembly can be achieved.

[0024] like Figure 1 As shown, the walking mechanism 1 drives the frame 2 to the designated position cooperating with the tensioning pedestal 7, the hydraulic pump station 3 controls the frame moving cylinder 4, and moves the tensioning cylinder assembly 6 to the designated position cooperating with the tensioning pedestal 7 through the synchronization assembly 5, so that the piston rod lifting ear circular hole at the end of the tensioning cylinder 61 is concentric with the circular holes on both sides of the pull plate assembly 8, and the pull plate pin shaft 9 is inserted, and the tensioning cylinder 61 moves the pull plate assembly 8 to the position to be tensioned, and the prestressed tendons 11 are manually passed through the tensioning pedestal 7 and fixed to the pull plate assembly 8 through the anchor 12, waiting for tensioning.

[0025] like Figure 5As shown, at the other end, a single prestressed tendon 11 is tensioned to 30% of the specified tension value, and the tensioning oil cylinder 61 cooperates with the synchronous component 5 to slowly move the pull plate component 8 to control the synchronous movement of the two sides of the pull plate component 8 to the tensioning stop position. At this time, the prestressed tendon 11 is tensioned to 100% of the specified tension value. The baffle grooves 13 on both sides of the tensioning pedestal 7 are placed in the tensioning baffle 10, and the pull plate component 8 is fixed on the tensioning pedestal 7. The group tensioning work of the prestressed tendons 11 is completed.

[0026] like Figure 6 As shown, the pull plate pin is removed, the hydraulic pump station 3 controls the piston rod of the tensioning cylinder 6 to reset, and the hydraulic pump station 3 controls the frame moving cylinder 4 to drive the tensioning cylinder 6 assembly to reset.

[0027] like Figure 7 As shown, the walking mechanism 1 drives the frame 2 to the next station for the next group tensioning work. At the same time, the corresponding production line of the tensioning pedestal 7 can produce prefabricated concrete components.

[0028] like Figure 8 As shown, after the curing of the precast concrete components is completed, the walking mechanism 1 drives the frame 2 to the designated position in cooperation with the tensioning pedestal 7, the hydraulic pump station 3 controls the frame moving cylinder 4 to move the tensioning cylinder assembly 6 to the designated position in cooperation with the tensioning pedestal 7, the hydraulic pump station 3 controls the tensioning cylinder 61 piston rod ear circular hole to be concentric with the circular holes on both sides of the pull plate assembly 8, inserts the pull plate pin shaft 9, removes the tensioning baffle 10, and the hydraulic pump station 3 controls the tensioning cylinder 61 to slowly move the pull plate assembly 8 to release the prestress of the prestressed tendons 11.

[0029] like Fig. 9 As shown, the tensioning cylinder 61 slowly moves the tensioning plate assembly 8 to the tensioning stop position to reset, the baffle grooves 13 on both sides of the tensioning pedestal 7 are placed in the tensioning baffles 10, the tensioning plate assembly 8 is fixed on the tensioning pedestal 7, the tensioning plate pin 9 is removed, the hydraulic pump station 3 controls the tensioning cylinder 61 piston rod to reset, and the hydraulic pump station 3 controls the frame moving cylinder 4 to drive the tensioning cylinder assembly 6 to reset. The group tensioning work of the prestressed tendons 11 is completed. The walking mechanism drives the walking frame to the next station for the next group tensioning work.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. It should be understood that the specific embodiments described herein are only used to understand the present invention and are not used to limit the present invention. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

Claims

1. A multifunctional prestressed multi-steel tensioning machine, comprising a frame (2), characterized in that: The frame (2) is mounted on the walking mechanism (1); a hydraulic pump station (3), a frame moving cylinder (4), a synchronization component (5), and a tensioning cylinder component (6) are arranged on the frame (2); one end of the frame moving cylinder (4) is connected to the frame (2), and the other end is connected to the tensioning cylinder component (6) through the synchronization component (5); a guide groove (14) is arranged on the inner side of the frame (2); the frame moving cylinder (4) moves in the direction of the guide groove (14) The tensioning cylinder assembly (6) comprises a tensioning cylinder (61) and a tensioning cylinder frame (62). A tensioning pedestal (7) is provided on one side of the frame (2). A tensioning plate assembly (8) is provided on the tensioning pedestal (7). The tensioning cylinder (61) is movably connected to the tensioning plate assembly (8) via a tensioning plate pin shaft (9). Baffle grooves (13) are provided on both sides of the tensioning pedestal (7). A movable tensioning baffle (10) is provided in the baffle groove (13); The synchronization assembly (5) comprises a rotating shaft (15) and a rack (18), and gears (17) are provided at both ends of the rotating shaft (15). The rotating shaft (15) and the gear (17) are fixed below the guide grooves (14) on both sides of the frame (2) through seat bearings (16). The rack (18) is installed below both sides of the tensioning cylinder assembly (6), and the gear (17) is meshed with the rack (18); The hydraulic pump station (3) is installed at the middle position of the rear side inside the frame (2).

2. A multifunctional prestressed multi-steel tensioning machine according to claim 1, characterized in that: The tensioning cylinder assembly (6) is installed on the front side of the interior of the frame (2).

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