Walking positioning device of concrete transfer belt conveyor for T-beam production

Abstract

The utility model discloses a walking positioning device of a concrete transfer belt conveyor for T beam production, which comprises two brake iron shoe positioning devices and a touch switch, the two brake iron shoe positioning devices are arranged on a belt conveyor frame and can lock a front row of walking wheels and a rear row of walking wheels, and the touch switch is arranged on one side of a walking track. When the touch switch is touched, the brake iron shoe positioning device is controlled to position one row of walking wheels in the walking direction according to a touch signal, the other row of walking wheels is positioned by the other brake iron shoe positioning device after positioning, and the walking belt is limited after the two rows of walking wheels are positioned. The situation that the transfer belt conveyor cannot be accurately in butt joint with the distributing hopper due to excessive movement is avoided, movement in the discharging process is also avoided, fixed-point conveying and discharging into the distributing machine are achieved, and the discharging reliability is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of concrete horizontal conveyor belts, and relates to a walking positioning device for a concrete transfer belt conveyor used in T-beam production. Background Technology

[0002] In the prefabrication of highway bridges, the main method for concrete transportation and pouring is the concrete mixer truck + hopper method. This method suffers from long pouring times, significant concrete slump loss, and overlapping operations involving concrete pouring, rebar hoisting, and formwork installation. In recent years, to address these issues, China has introduced a concrete conveying technology using torpedo-shaped concrete mixers and placing booms, which is being widely promoted in smart beam yards. The torpedo-shaped concrete mixer uses a circular track, positioned above the mixing plant and the concrete pouring area. The circular track has a turning radius of 6 meters. Four torpedo-shaped concrete mixers are installed on the track, transporting concrete from the mixing plant to the placing boom along the circular track. Each mixer has a volume of 3 cubic meters. The mixers are operated remotely with multi-function buttons, allowing for multi-point dispensing to accommodate various production conditions. The travel speed is adjustable from 0-60 m / min. Dispensing is done by a 180° rotation, aided by a vibrating motor. The torpedo-shaped concrete mixer travels at 55 m / min on a straight line and 20 m / min on a curved path. The circular track has a straight section of 162m (long side) and a short section of 20m (short side), with a curve length of 18.84m. The time for one loop is 7.56 minutes. The unloading time is 6 minutes. Each trip transports 3 cubic meters of material, resulting in a final efficiency of 2.63 minutes / m². 3 The inventors discovered through on-site investigation that torpedo canisters suffered from a series of defects, including high failure rates, slow operating speeds, and difficulties in cleaning; the use of horizontal conveyor belts for concrete transport solved these problems.

[0003] However, for the material placing machine of multiple T-beam molds, the use of a mobile transfer belt conveyor to connect with the fixed horizontal conveyor belt can improve production efficiency. The power mechanism is self-locking and positioning is used for fixed-point material placement. However, during material placement, slippage may occur due to the inertia of the transfer belt conveyor, which may not accurately align with the material placing hopper, resulting in poor reliability and easy to cause safety accidents. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a walking positioning device for a concrete conveyor belt used in T-beam production, which can realize the walking limit of the conveyor belt and improve the reliability and safety of the concrete placement process.

[0005] The technical solution adopted in this utility model is as follows: a walking positioning device for a concrete conveyor belt for T-beam production, including a brake shoe positioning device and a touch switch. Two brake shoe positioning devices are used and installed on the conveyor frame to lock the front and rear walking wheels. The touch switch is installed on one side of the walking track.

[0006] Furthermore, the aforementioned brake shoe positioning device includes a shoe block and a vertical lifting drive mechanism. The shoe block is vertically slidably connected in the sliding groove. After moving upward, the arc-shaped surface of the shoe block can fit against the wheel surface of the walking wheel. The bottom is connected to the vertical lifting drive mechanism. After driving the shoe block to move upward, it can limit the walking wheel. After the shoe block moves downward, it is lower than the top rail surface of the walking track.

[0007] Furthermore, the aforementioned iron shoe block is provided with vertical strip holes, and two guide pins are arranged vertically at intervals in the vertical strip holes and fixedly connected to the two guide pins. The fixed frame is fixedly connected to the gap in the walking track. The use of double guide pins can perform qualitative movement of the iron chip block, improve the accuracy of qualitative movement, and achieve the function of preventing it from falling off.

[0008] Furthermore, the aforementioned lifting and lowering drive mechanism includes a pressure rod, a first connecting rod, a second connecting rod, and a driving hydraulic cylinder. One end of the pressure rod abuts against the bottom of the iron shoe block and is hinged to the bottom of the travel track near the center via a hinge seat. The other end of the pressure rod is hinged to the first connecting rod, and the other end of the first connecting rod is hinged to the end of the cylinder rod of the driving hydraulic cylinder. One end of the second connecting rod is hinged to the upper middle part of the first connecting rod, and the other end is hinged to the top of the cylinder seat of the driving hydraulic cylinder near the cylinder rod end. The tail of the cylinder seat of the driving hydraulic cylinder is hinged to a vertical cantilever seat, and the upper end of the vertical cantilever seat is fixedly connected to the bottom of the travel track.

[0009] Furthermore, the aforementioned pressure rod has a spoon-shaped contact end with the bottom of the iron shoe block, or is rotatably connected to a roller. When spoon-shaped, the protruding surface rests against the bottom surface of the iron shoe block.

[0010] The beneficial effects of this utility model are as follows: Compared with the prior art, the effects of this utility model are as follows:

[0011] (1) In this utility model, when the touch switch is touched, the brake shoe positioning device will position one row of walking wheels in the direction of travel according to the touch signal. After positioning, another machine is used to position the other row of walking wheels. After the two rows of walking wheels are positioned, the walking belt is limited, which avoids the transfer belt from moving too much and thus failing to accurately dock with the cloth bucket. It also avoids movement during the unloading process, realizes fixed-point conveying and unloading into the cloth machine, and improves the reliability of unloading.

[0012] (2) By driving the iron chip block to move upward, the traveling wheel can be limited; after the iron shoe block moves downward, it is lower than the top rail surface of the traveling track.

[0013] (3) The use of double guide pins can make qualitative movement of the iron filings, improve the accuracy of qualitative movement, and also achieve the function of preventing detachment;

[0014] (4) After the hydraulic cylinder extends, it can move the iron chip block down by the connecting rod. After it retracts, it can move the iron shoe block up. The power mechanism is arranged away from the iron chip block, which is convenient for installation. The connecting rod mechanism realizes power transmission, and the force transmission is stable and reliable. It can realize slow application of force and reduce impact.

[0015] (5) The spoon-shaped or roller design can reduce friction and improve pressing stability. Attached Figure Description

[0016] Figure 1 This is a front view schematic diagram of the walking and positioning device for a concrete conveyor belt used in T-beam production.

[0017] Figure 2 This is a schematic diagram of the belt scraper installation structure;

[0018] Figure 3 This is a schematic diagram of the scraper blade structure;

[0019] Figure 4 Schematic diagram of the front wheel positioning structure of a walking belt conveyor;

[0020] Figure 5 A schematic diagram of the positioning structure for the rear wheel of a traveling belt conveyor;

[0021] Figure 6 This is a schematic diagram of the installation structure of the conveyor belt. Detailed Implementation

[0022] The utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0023] Example 1: As Figure 4-5As shown, the traveling positioning device for the concrete conveyor belt used in T-beam production includes a brake shoe positioning device 11 and a touch switch 12. Two brake shoe positioning devices 11 are installed on the conveyor frame 5 to lock the front and rear rows of traveling wheels 14. The touch switch 12 is installed on one side of the traveling track 13. When the touch switch is activated, the brake shoe positioning device 11 positions one row of traveling wheels in the traveling direction based on the touch signal. After positioning, another device positions the other row of traveling wheels. Positioning both rows of traveling wheels limits the movement of the conveyor belt, preventing movement during material unloading and ensuring precise unloading into the concrete placing boom, thus improving unloading reliability. The brake shoe positioning device 11 includes a shoe block 1101 and a vertical lifting drive mechanism 1102. The shoe block 1101 is vertically slidably connected in a sliding groove 1103. After moving upward, the arc-shaped surface of the shoe block can fit against the surface of the walking wheel. The bottom is connected to the vertical lifting drive mechanism 1102. By driving the shoe block to move upward, it can limit the walking wheel. After the shoe block moves downward, it is lower than the top rail surface of the walking track. The shoe block 1101 is provided with a vertical strip hole 1104. Two guide pins 1105 are vertically spaced in the vertical strip hole 1104 and fixedly connected to the two guide pins 1105. The two guide pins 1105 are fixedly connected to the fixed frame 1106. The fixed frame 1106 is fixedly connected to the walking track. At the notch of track 13, double guide pins are used to allow for qualitative movement of the iron filings, improving the accuracy of the qualitative movement and preventing them from slipping off. The up-and-down lifting drive mechanism 1102 includes a pressure rod 1107, a first connecting rod 1108, a second connecting rod 1109, and a drive hydraulic cylinder 1110. One end of the pressure rod 1107 abuts against the bottom of the iron shoe block 1101 and is hinged to the bottom of the track 13 near the center via a hinge seat 1111. The other end of the pressure rod 1107 is hinged to the first connecting rod 1108, and the other end of the first connecting rod 1108 is hinged to the end of the cylinder rod of the drive hydraulic cylinder 1110. One end of the second connecting rod 1109 is hinged to the upper middle part of the first connecting rod 1108, and the other end is hinged to the drive hydraulic cylinder 1110. The top of the cylinder seat of cylinder 1110 is close to one end of the cylinder rod. The tail of the cylinder seat of the driving hydraulic cylinder 1110 is hinged to the vertical cantilever seat 1112. The upper end of the vertical cantilever seat 1112 is fixedly connected to the bottom of the walking track 13. After the driving hydraulic cylinder extends, it can move the iron chip block down by the connecting rod. After retracting, it can move the iron shoe block up. The power mechanism is arranged away from the iron chip block for easy installation. The connecting rod mechanism realizes power transmission, and the force transmission is stable and reliable. It can realize the slow application of force and reduce impact. The pressure rod 1107 is set in the shape of a spoon or is rotatably connected to a roller at one end of the bottom of the iron shoe block 1101. When it is spoon-shaped, the convex surface is close to the bottom surface of the iron shoe block 1101, which can reduce friction and improve the pressing stability.To achieve automation, limit switches are connected to a controller, which in turn is connected to the power mechanism and hydraulic cylinder of the conveyor belt. When a touch signal is detected, the conveyor belt stops moving and controls the hydraulic cylinder to push out the metal chip block for positioning. After the material is laid at this position, when it is time to move to the next laying position, the metal chip block is retracted, and the movement continues.

[0024] Example 1: As Figure 1-6 As shown, the transfer belt conveyor of the concrete horizontal belt conveyor system used for T-beam production includes a conveyor belt 1, which is mounted on a belt conveyor frame 2. Multiple rows of wheels 3 are arranged at the bottom of the belt conveyor frame 2. A first unloading hopper 4 and a second unloading hopper 5 are respectively arranged at both ends of the conveyor belt 1. Unloading scrapers 10 are installed inside the first unloading hopper 4 and the second unloading hopper 5. A first power drive mechanism 6 and a second power mechanism 7 are respectively installed on the front and back rows of wheels 3. The first power drive mechanism 6 and the second power mechanism 7 are mounted on a traveling track 13. 3 is installed on the frame 8, which is connected to the ground via the column 9; it adopts a walking concrete conveyor belt, which can realize the covering and transfer of multiple placing booms at one end of the horizontal conveyor belt unloading, which can greatly improve production efficiency, increase equipment utilization, and reduce production costs. Moreover, it adopts multiple rows of walking wheels, so the walking is stable and reliable. It is equipped with unloading hoppers and unloading scrapers, which can unload at fixed points and keep the belt unloading clean. It adopts a dual power mechanism drive, which can serve as a backup and improve power for longer transfer belts, making the walking more efficient and stable.

[0025] To achieve better scraping results on the concrete surface indicated by the belt, such as Figure 2-3As shown, the concrete horizontal belt conveyor system also includes an upper belt discharge scraper 10. The discharge scraper 10 includes a first scraper plate 1001 and a second scraper plate 1002. The first scraper plate 1001 and the second scraper plate 1002 are made of rigid plastic plates and are fixedly connected to both sides of an inverted T-shaped metal support plate 1003 with a gap. Flexible rubber scraper blades 1004 are arranged along the length of the top of the first scraper plate 1001 and the second scraper plate 1002. The metal support plate 1003 is fixedly connected to two swing rods 1005 near both ends. The two swing rods 1005 are hinged to the side wall of the discharge hopper 4 near the middle and their ends extend out of the rear end of the side wall of the discharge hopper 4 and are fixedly connected. The drive shaft 1008 is hinged in the middle to the cylinder rod of the cylinder 1007. The cylinder seat of the cylinder 1007 is hinged to the side wall of the discharge hopper 4, and this hinge point is located below the hinge point between the swing rod 1005 and the side wall. After the cylinder 1007 extends, it can simultaneously press the first layer scraper 1001 and the second layer scraper 1002 against the lower left of the discharge end of the upper belt conveyor. The use of double-layer scraper plates can better scrape off the mud. The hard plastic scraper plates provide better support rigidity, and when the flexible plastic scraper blades contact the belt, they can more stably scrape off the concrete adhering to the belt, ensuring stable and reliable scraping. On the other hand, they also provide better shock absorption. To prevent excessive vibration from degrading the scraping effect, a T-shaped metal support plate is used. This provides spacing and facilitates installation. Corrosion-resistant bolts (110) pass through the two scraper blades and the T-shaped metal support plate, and are then secured with corrosion-resistant nuts. The two scraper blades and the T-shaped metal support plate are also positioned using locating pins (1011). The scraper blades have stepped holes for receiving the bolt heads and nuts. Sealing the stepped holes with a cap prevents cement mortar from entering and corroding the bolts. A cylinder controls the extension and retraction of the scraper blades during use or cleaning. This contact allows water to enter and clean the scraper blades. The cylinder has a washing and rinsing function with the scraper blade. On the other hand, the cylinder extension and retraction can maintain a certain elasticity and avoid poor stability of the scraper blade contact due to the fixing method. A dust cover 1009 is installed above the cylinder to block the cement mortar from falling and protect the cylinder. The top surface of the metal support plate 1003 is provided with symmetrical slopes on both sides, which facilitates the automatic collection and flowout of accumulated mud. The vibration generated during the belt movement also helps the mud slide off. The flexible rubber scraper blade 1004 has a cylindrical structure and a T-shaped strip 1012 is provided at the bottom. The T-shaped strip 1012 is elastically squeezed and inserted into the T-shaped groove at the top of the first scraper blade 1001 or the second scraper blade 1002, which is convenient and quick to install.

[0026] like Figure 4-5As shown, to ensure stable unloading of material from the lower conveyor belt into the placing boom, the conveyor belt also includes a brake shoe positioning device 11 and a touch switch 12. Two brake shoe positioning devices 11 are installed on the conveyor frame to lock the front and rear rows of traveling wheels 3. The touch switch 12 is installed on one side of the traveling track 13. When the touch switch is activated, the brake shoe positioning device 11 positions one row of traveling wheels in the direction of travel based on the touch signal. After positioning, another device positions the other row of traveling wheels. Positioning both rows of traveling wheels limits the movement of the conveyor belt, preventing movement during material unloading and ensuring precise unloading into the placing boom, thus improving unloading reliability. The brake shoe positioning device 11 includes a brake shoe block 1101 and a vertical lifting drive mechanism 1102. The brake shoe block 1101 is vertically slidably connected in a sliding groove 1103. After moving upward, the arc-shaped surface of the brake shoe block can fit against the surface of the traveling wheel. The bottom is connected to the vertical lifting drive mechanism 1102. By driving the brake shoe block to move upward, it can limit the traveling wheel. After the brake shoe block moves downward, it is lower than the top rail surface of the traveling track. The brake shoe block 1101 is provided with a vertical strip hole 1104. Two guide pins 1105 are vertically spaced in the vertical strip hole 1104 and fixedly connected to the two guide pins 1105. The two guide pins 1105 are fixedly connected to the fixed frame 1106. The fixed frame 1106 is fixedly connected to the traveling wheel. At the notch of track 13, double guide pins are used to allow for qualitative movement of the iron filings, improving the accuracy of the qualitative movement and preventing them from slipping off. The up-and-down lifting drive mechanism 1102 includes a pressure rod 1107, a first connecting rod 1108, a second connecting rod 1109, and a drive hydraulic cylinder 1110. One end of the pressure rod 1107 abuts against the bottom of the iron shoe block 1101 and is hinged to the bottom of the traveling track 13 near the center via a hinge seat 1111. The other end of the pressure rod 1107 is hinged to the first connecting rod 1108, and the other end of the first connecting rod 1108 is hinged to the end of the cylinder rod of the drive hydraulic cylinder 1110. One end of the second connecting rod 1109 is hinged to the upper middle part of the first connecting rod 1108, and the other end is hinged to the drive hydraulic cylinder 1110. The top of the cylinder seat of cylinder 1110 is close to one end of the cylinder rod. The tail of the cylinder seat of the driving hydraulic cylinder 1110 is hinged to the vertical cantilever seat 1112. The upper end of the vertical cantilever seat 1112 is fixedly connected to the bottom of the walking track 13. After the driving hydraulic cylinder extends, it can move the iron chip block down by the connecting rod. After retracting, it can move the iron shoe block up. The power mechanism is arranged away from the iron chip block for easy installation. The connecting rod mechanism realizes power transmission, and the force transmission is stable and reliable. It can realize the slow application of force and reduce impact. The pressure rod 1107 is set in the shape of a spoon or is rotatably connected to a roller at one end of the bottom of the iron shoe block 1101. When it is spoon-shaped, the convex surface is close to the bottom surface of the iron shoe block 1101, which can reduce friction and improve the pressing stability.

[0027] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A traveling positioning device for a concrete conveyor belt used in T-beam production, characterized in that, It includes a brake shoe positioning device (11) and a touch switch (12). Two brake shoe positioning devices (11) are installed on the belt conveyor frame (5) to lock the front and rear walking wheels (14). The touch switch (12) is installed on one side of the walking track (13).

2. The traveling positioning device for a concrete conveyor belt for T-beam production according to claim 1, characterized in that, The brake shoe positioning device (11) includes a shoe block (1101) and a vertical lifting drive mechanism (1102). The shoe block (1101) is vertically slidably connected in the sliding groove (1103). After moving up, the arc surface of the shoe block can fit against the wheel surface of the walking wheel. The bottom is connected to the vertical lifting drive mechanism (1102).

3. The traveling positioning device for a concrete conveyor belt for T-beam production according to claim 2, characterized in that, The iron shoe block (1101) is provided with a vertical strip hole (1104). Two guide pins (1105) are arranged vertically at intervals in the vertical strip hole (1104) and are fixedly connected to the two guide pins (1105) and fixedly connected to the fixed frame (1106). The fixed frame (1106) is fixedly connected to the gap in the walking track (13).

4. The traveling positioning device for a concrete conveyor belt conveyor used in T-beam production according to claim 2, characterized in that, The lifting and lowering drive mechanism (1102) includes a pressure rod (1107), a connecting rod one (1108), a connecting rod two (1109), and a drive hydraulic cylinder (1110). One end of the pressure rod (1107) abuts against the bottom of the iron shoe block (1101), and is hinged to the bottom of the traveling track (13) near the middle via a hinge seat (1111). The other end of the pressure rod (1107) is hinged to the connecting rod one (1108). The connecting rod one (1109) is... 08) The other end is hinged to the end of the cylinder rod of the driving hydraulic cylinder (1110). One end of the connecting rod (1109) is hinged to the upper part of the connecting rod (1108), and the other end is hinged to the top of the cylinder seat of the driving hydraulic cylinder (1110) near the cylinder rod. The tail of the cylinder seat of the driving hydraulic cylinder (1110) is hinged to the vertical cantilever seat (1112). The upper end of the vertical cantilever seat (1112) is fixedly connected to the bottom of the traveling track (13).

5. The traveling positioning device for a concrete conveyor belt conveyor used in T-beam production according to claim 4, characterized in that, The pressure bar (1107) is positioned at one end of the bottom of the iron shoe block (1101) in the shape of a spoon or is rotatably connected to a roller. When it is spoon-shaped, the raised surface is against the bottom surface of the iron shoe block (1101).

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