A rail-mounted concrete placing vehicle for cooling towers

Abstract

This utility model provides a track-mounted concrete placing vehicle for cooling towers, comprising a circular track laid on the circular scaffolding of the cooling tower; a frame and a power system, the frame being supported on the circular track via wheels, and the power system mounted on the frame and connected to the wheels; a placing device fixedly mounted on one end of the frame and connected to a ground concrete supply system; a personnel carrier fixedly mounted on the other end of the frame; and a control panel mounted on the frame and located to one side of the personnel carrier. This utility model uses a track erected on the circular scaffolding of the cooling tower to move the placing vehicle. The track-mounted concrete placing vehicle picks up concrete from the pump pipe, and the operator on the personnel carrier controls the drive motor via the control panel to move the frame and power system along the track. During the process, the placing device quickly and evenly pours concrete, effectively avoiding uneven concrete composition and segregation during laying, thus ensuring concrete quality.

Description

Technical Field

[0001] This utility model relates to the field of concrete pouring equipment technology, and in particular to a track-mounted concrete placing vehicle for cooling towers. Background Technology

[0002] During the construction of the cooling tower, as the building height increases, it is necessary to use a ground pump to pump the ground concrete to the construction site.

[0003] However, the unique annular structure of cooling towers results in a large working area, and traditional concrete pouring methods have many drawbacks. Traditional pouring methods involve excessively long concrete pouring times, making them highly susceptible to quality problems such as construction cold joints. The presence of construction cold joints severely affects the overall performance of the structure, reducing the service life and safety of the cooling tower. Furthermore, traditional pouring methods struggle to ensure the uniformity of concrete distribution, easily leading to uneven concrete composition and segregation, which negatively impacts concrete quality and increases subsequent maintenance and repair costs.

[0004] Among existing patented technologies, such as Chinese patent CN205908025U authorized on 2017-01-25, an electric rail-type concrete placing vehicle for cooling tower concrete pouring is disclosed. It adopts a circular track on the cooling tower and a power locomotive and a concrete placing open-top vehicle that run along the track, which can realize the self-placing of concrete along the track.

[0005] However, in the aforementioned existing technologies, each power locomotive and fabric open-top car requires a driver and a material feeding operator, meaning that the movement and fabric feeding are controlled independently, requiring at least two construction workers to operate, resulting in high labor costs. Utility Model Content

[0006] The purpose of this utility model is to provide a track-type concrete placing vehicle for cooling towers, which can effectively avoid uneven concrete composition and segregation during cooling tower laying, ensure pouring quality, and effectively save labor costs.

[0007] This utility model provides a track-mounted concrete placing vehicle for cooling towers, comprising: a circular track laid on a circular scaffolding board of the cooling tower; a frame and a power system, wherein the frame is mounted on the circular track via wheels, and the power system is mounted on the frame and connected to the wheels; a placing device fixedly mounted on one end of the frame and connected to a ground concrete supply system; a personnel carrier fixedly mounted on the other end of the frame; and a control panel disposed on the frame and located on one side of the personnel carrier.

[0008] Furthermore, the circular track comprises several segments, each segment comprising two longitudinal tracks and at least one transverse support, the two longitudinal tracks being spaced apart on the transverse support, and the longitudinal tracks of adjacent segments being connected end to end.

[0009] Furthermore, both the longitudinal track and the transverse support are triangular flat iron; two slots are spaced apart on the transverse support, and the longitudinal track is embedded in the slots; short steel bars are welded to both ends of the longitudinal track, and the longitudinal track between adjacent sections is connected end to end by short steel bars.

[0010] Furthermore, the fabric distribution device includes a support base, a storage hopper, and a material cylinder. The support base is fixedly installed on one end of the vehicle frame, the storage hopper is fixed on the support base, the material cylinder is connected to one side of the storage hopper, and a fabric distribution port is provided on the material cylinder.

[0011] Furthermore, a baffle plate is provided inside the material cylinder, and the baffle plate is inserted between the material cylinder and the storage hopper.

[0012] Furthermore, the storage hopper is equipped with a pushing mechanism.

[0013] Furthermore, the feeding mechanism includes a guide rod and a scraper. The scraper is movably disposed inside the storage hopper, the guide rod is disposed outside the storage hopper, and the scraper is movably sleeved on the guide rod.

[0014] Furthermore, the manned device includes a manned platform and guardrails.

[0015] Furthermore, the power system includes a drive motor and a transmission mechanism, wherein the drive motor is connected to the walking wheels through the transmission mechanism.

[0016] Furthermore, the control panel includes control buttons, which are electrically connected to the control terminal of the power system.

[0017] This invention utilizes a track-mounted concrete placing trolley to move along the cooling tower's annular scaffolding. The track-mounted concrete placing trolley picks up concrete from the pump pipe. Operators on the carrying unit control the drive motor via a control panel to move the trolley and power system along the track. During this process, the placing device rapidly and evenly pours the concrete, effectively preventing uneven concrete composition and segregation, thus ensuring concrete quality. Furthermore, compared to existing technologies requiring two separate operators for movement and placing, this invention integrates the carrying unit and placing device at opposite ends of the same frame. Only one operator is needed to control the overall movement and placing of the trolley from the control panel on the carrying unit, effectively saving labor costs. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the fabric cart of this utility model;

[0020] Figure 2 This is a schematic diagram of the fabric cart of this utility model from another perspective.

[0021] Figure 3 This is a schematic diagram of the bottom view of the fabric cart of this utility model;

[0022] Figure 4 This is a side view of the fabric cart of this utility model;

[0023] Figure 5 This utility model Figure 4 AA section view;

[0024] Figure 6 This is a schematic diagram of a portion of the circular track of this utility model;

[0025] Explanation of reference numerals in the attached figures:

[0026] 1-Circular track; 11-Longitudinal track; 12-Transverse support; 13-Slot; 14-Short reinforcing bar;

[0027] 2-Frame;

[0028] 3-Walking wheels;

[0029] 4-Power system; 41-Drive motor; 42-Transmission mechanism;

[0030] 5-Material distribution device; 51-Support base; 52-Storage hopper; 53-Material cylinder; 54-Material distribution port; 55-Baffle plate; 56-Hydraulic push rod;

[0031] 6-Manned device; 61-Manned platform; 62-Guardrail;

[0032] 7-Control panel; 71-Control buttons;

[0033] 8-Pushing mechanism; 81-Guide rod; 82-Scraper; 83-Guide slider; 84-Motor screw; 85-Screw nut. Detailed Implementation

[0034] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0035] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] Example 1

[0038] like Figures 1-6 As shown, this utility model provides a track-mounted concrete placing vehicle for cooling towers, comprising: a circular track 1 laid on a circular scaffold board of the cooling tower; a frame 2 and a power system 4, the frame 2 being mounted on the circular track 1 via wheels 3, and the power system 4 being mounted on the frame 2 and connected to the wheels 3; a placing device 5 fixedly mounted on one end of the frame 2 and connected to a ground concrete supply system; a personnel carrier 6 fixedly mounted on the other end of the frame 2; and a control panel 7 mounted on the frame 2 and located on one side of the personnel carrier 6.

[0039] Specifically, this invention enables the movement of the concrete placing vehicle by erecting a circular track 1 on the annular scaffolding of the cooling tower, and utilizes the track-type concrete placing vehicle for concrete pouring. This effectively shortens the concrete pouring time, avoids the formation of cold joints, and improves the overall performance and quality of the cooling tower structure. The placing device 5 of the track-type concrete placing vehicle picks up material from the pump pipe. The operator, on the personnel carrier 6, controls the drive motor 41 to drive the frame 2 and power system 4 to move along the track via the control panel 7. During the process, the placing device 5 quickly and evenly pours the concrete, effectively avoiding uneven concrete composition and segregation during laying, ensuring the quality of the concrete. Moreover, compared to the prior art which requires two people to control the movement and placing separately, this invention sets the personnel carrier 6 and the placing device 5 at both ends of the same frame 2. Only one person needs to operate the control panel 7 on the personnel carrier 6 to control the overall movement and placing of the placing vehicle, effectively saving labor costs.

[0040] Example 2

[0041] The circular track 1 comprises several sections, each section including two longitudinal tracks 11 and at least one transverse support 12. The two longitudinal tracks 11 are spaced apart on the transverse support 12, and the longitudinal tracks 11 of adjacent sections are connected end to end. Both the longitudinal tracks 11 and the transverse support 12 are triangular flat iron. Two slots 13 are spaced apart on the transverse track, and the longitudinal tracks 11 are embedded in the slots 13. Short steel bars 14 are welded to both ends of the longitudinal tracks 11, and the longitudinal tracks 11 of adjacent sections are connected end to end by the short steel bars 14.

[0042] Specifically, the two longitudinal rails 11 are fixed by a transverse slotted flat iron, and the longitudinal rails 11 are connected by short steel bars 14 welded to one end. The annular rail 1 adopts a combination structure of two triangular flat irons, transverse slotted flat iron, and welded short steel bars 14, which has good stability and adaptability, can meet the construction requirements of the annular working surface of the cooling tower, and is easy to install and disassemble, can be reused, and reduces construction costs.

[0043] Example 3

[0044] The fabric feeding device 5 includes a support base 51, a storage hopper 52, and a feed cylinder 53. The support base 51 is fixedly installed on one end of the frame 2. The storage hopper 52 is fixed on the support base 51. The feed cylinder 53 is connected to one side of the storage hopper 52 and has a fabric feeding port 54. A baffle plate 55 is provided inside the feed cylinder 53, and the baffle plate 55 is inserted between the feed cylinder 53 and the storage hopper 52. A pushing mechanism 8 is provided inside the storage hopper 52. The pushing mechanism 8 includes a guide rod 81 and a scraper 82. The scraper 82 is movably disposed inside the storage hopper 52, and the guide rod 81 is disposed outside the storage hopper 52. The scraper 82 is movably sleeved on the guide rod 81.

[0045] Specifically, the frame 2 is a bottom frame structure used to install the wheels 3, drive motor 41, and power system 4. The support base 51 is a base set on one end of the frame 2, used to fix the storage hopper 52. If necessary, the storage hopper 52 can be removed from the support base 51 for replacement or cleaning. The storage hopper 52 has a funnel-shaped structure, with an opening at the top for inserting a pump pipe to pick up material, and an opening on one side at the bottom for connecting to a material cylinder 53 for distributing material. The material cylinder 53 is an inclined welded channel steel structure forming a material distributing port 54, used to transport concrete to the pouring position. A baffle plate 55 is inserted and raised at the connection between the material cylinder 53 and the storage hopper 52 as a control gate to control the pouring of concrete. A hydraulic push rod 56 can be installed on the side of the storage hopper 52, and the top of the baffle plate 55 is connected to the hydraulic push rod 56. The control end of the hydraulic push rod 56 is connected to the control panel 7. When the construction personnel stand on the personnel platform 61, they can control the hydraulic push rod 56 to insert and remove the baffle plate 55 through the control panel 7, so as to realize the discharge or stop of the material cylinder 53, and to reasonably guide and control the flow of concrete in the material cylinder 53.

[0046] Because concrete itself may lack fluidity, a pushing mechanism 8 is provided to prevent residual concrete. The pushing mechanism 8 can stably and evenly push the remaining concrete from the storage hopper 52 to the material cylinder 53.

[0047] The material pushing mechanism 8 can take various forms, such as a scraper-type material pushing mechanism, which uses a scraper 82 to push the concrete forward. The specific form of the material pushing mechanism 8 can be selected and optimized according to actual needs and usage scenarios.

[0048] In this embodiment, a scraper 82 is vertically installed inside the storage hopper 52. When concrete is pumped into the storage hopper 52, the scraper 82 adheres to the inner side of the storage hopper 52 away from the material cylinder 53. When the concrete in the storage hopper 52 reaches its bottom, the scraper 82 is controlled to move towards the material cylinder 53 to scrape the concrete at the bottom of the storage hopper 52. A guide slider 83 is connected to the top of the scraper 82 and is slidably sleeved on two guide rods 81 on both sides of the upper end of the storage hopper 52 to guide the movement direction of the scraper 82. A motor screw 84 device can be installed on one side of the storage hopper 52 to connect the guide slider 83 of the scraper 82 to the screw nut 85. The control end of the motor is connected to the control panel 7. When the construction personnel stand on the personnel platform 61, they can control the motor to move the scraper 82 forward and backward by operating the control panel 7 to achieve concrete scraping or resetting.

[0049] The bottom of the storage hopper 52 is a groove structure with inclined walls on both sides, and the material cylinder 53 is located in the center of the inclined walls on both sides, so that the bottom concrete is guided to the material cylinder 53. The bottom of the scraper 82 is an inclined structure on both sides that is adapted to the bottom of the storage hopper 52.

[0050] Example 4

[0051] The manned device 6 includes a manned platform 61 and a guardrail 62. The power system 4 includes a drive motor 41 and a transmission mechanism 42, with the drive motor 41 connected to the wheels 3 via the transmission mechanism 42. The control panel 7 includes control buttons 71, which are electrically connected to the control terminal of the power system 4.

[0052] Specifically, the personnel platform 61 is a base mounted on the other end of the frame 2 for personnel to stand on. Guardrails 62 are installed around the personnel platform 61 to protect construction workers. The control terminal of the drive motor 41 is connected to the control panel 7. When construction workers stand on the personnel platform 61, they can control the drive motor 41 to drive the transmission mechanism 42 and the traveling wheels 3 along the circular track 1 via the control panel 7, precisely adjusting the speed and direction of the concrete placing vehicle on the track to adapt to different pouring requirements. The transmission mechanism 42 is a conventional vehicle transmission system, including transmission to the traveling wheels 3 via a clutch, gearbox, drive shaft, reducer, differential, etc., which is common knowledge in the art and will not be described further.

[0053] The working method of this utility model:

[0054] 1) Track construction:

[0055] Material preparation: Prepare two triangular flat irons of appropriate length to match the circumference of the cooling tower's annular scaffold plank as longitudinal rails 11, multiple transverse slotted flat irons, and an appropriate amount of short steel bars 14. The dimensions of the triangular flat irons are selected based on the traveling wheels 3 of the concrete placing vehicle and the overall load-bearing requirements, while the length of the transverse slotted flat irons is determined based on the width of the scaffold plank.

[0056] Installation Process: The horizontally slotted flat iron bars are laid evenly and parallel on the circular scaffolding of the cooling tower at a certain spacing. Then, the longitudinal rails (11 flat iron bars) are placed into the slots of the horizontally slotted flat iron bars, with the slot width matching the length of the flat iron's hypotenuse to ensure track stability. Short reinforcing bars (14) are welded to one end of the inner side of the longitudinal rails (11 flat iron bars). Two longitudinal rails (11 flat iron bars) are connected by overlapping short reinforcing bars (14), further enhancing the track's integrity and structural strength. After measurement and calibration, the flatness and spacing of the track are ensured to meet the operating requirements of the concrete placing vehicle. After the track is installed, a load-bearing test is conducted to ensure it can safely support the weight of the concrete placing vehicle and the concrete.

[0057] 2) Installation and debugging of the fabric carrier:

[0058] Component Assembly: At the construction site, assemble the frame 2, wheels 3, and drive motor 41 on the ground, ensuring smooth transmission connection between the wheels 3 and drive motor 41. Install the support base 51, control panel 7, and personnel carrier 61 sequentially on the frame 2. Fix the storage hopper 52 to the support base 51, connect the storage hopper 52 to the discharge port of the material cylinder 53, ensuring the connection is sealed to prevent concrete leakage, and install a baffle plate 55 at the material cylinder 53.

[0059] Vehicle hoisting: The concrete placing vehicle is hoisted to the construction site using a tower crane, and it should be securely tied during the hoisting process.

[0060] Operation and debugging: Start the drive motor 41 and test the movement of the concrete placing trolley on the track, checking whether the travel speed is uniform and whether the directional control is flexible. Run the pushing mechanism 8, observe the pushing effect of the scraper 82 on the concrete, and adjust the operating parameters of the pushing mechanism 8 to ensure that the concrete can be stably and evenly pushed out from the placing port 54. At the same time, test all control buttons 71 on the control panel 7 to ensure that the operator can accurately control the operation of the concrete placing trolley.

[0061] 3) Concrete pouring operation:

[0062] Material handling process: Connect the concrete pump pipe to the material drop port of the material storage hopper 52 of the concrete placing vehicle, and pump the ground concrete into the material storage hopper 52 through the ground pump. When the concrete in the material storage hopper 52 reaches a certain amount, close the pump pipe valve.

[0063] Pouring Process: The operator climbs onto the manned platform 61 and starts the drive motor 41 via the control panel 7, causing the concrete placing vehicle to slowly move along the track to the designated pouring position. The concrete pouring speed is controlled by raising and lowering the baffle plate 55. When there is little concrete remaining in the storage hopper 52, the pushing mechanism 8 can be activated to push the concrete in the storage hopper 52 to the material cylinder 53. The concrete then flows out evenly from the placing port 54, realizing the pouring of the annular working surface of the cooling tower. During the pouring process, the operator adjusts the moving speed of the concrete placing vehicle and the pushing speed of the pushing mechanism 8 in real time according to the concrete pouring situation to ensure the continuity and uniformity of the concrete pouring. For different parts of the annular structure of the cooling tower, such as curves and straight sections, the operator flexibly controls the operation of the concrete placing vehicle to ensure that the concrete is accurately poured to the corresponding position, avoiding pouring dead corners or unevenness.

[0064] Work continuity: Once one pouring area is completed, the operator moves the concrete placing vehicle to the next pouring area to continue the concrete pouring operation. Throughout the pouring process, a certain amount of concrete is maintained in the storage hopper 52. Through coordination with the ground concrete supply system, concrete is replenished in a timely manner to ensure uninterrupted pouring operations.

[0065] By applying the track-mounted concrete placing vehicle of this invention, the concrete pouring time for cooling tower construction projects can be shortened by 40% compared to traditional pouring methods, effectively avoiding the generation of cold joints during construction. Testing showed that the overall performance of the structure meets design requirements. Regarding concrete quality, the rapid and uniform pouring ensures even concrete distribution without segregation, and both concrete strength and durability test results meet standards, thus improving the overall quality of the cooling tower project. Furthermore, the placing vehicle is easy to operate, reducing the labor intensity of operators, improving construction efficiency, and the track is convenient to install and disassemble. It can also be recycled and reused after the project is completed, reducing construction costs and achieving good economic benefits and engineering results.

[0066] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A rail-mounted concrete placement vehicle for cooling towers, characterized in that, include: A circular track is laid on the circular scaffolding of the cooling tower; A chassis and a power system, wherein the chassis is mounted on the circular track via wheels, and the power system is mounted on the chassis and connected to the wheels; A concrete placement device is fixedly installed on one end of the vehicle frame and is connected to a ground concrete supply system. A manned device, which is fixedly mounted on the other end of the vehicle frame; A control panel is mounted on the vehicle frame and located on one side of the manned device.

2. The rail-mounted concrete placement vehicle for cooling towers of claim 1, wherein, The circular track comprises several segments, each segment including two longitudinal tracks and at least one transverse support. The two longitudinal tracks are spaced apart on the transverse support, and the longitudinal tracks of adjacent segments are connected end to end.

3. The rail-mounted concrete placement vehicle for cooling towers of claim 2, wherein, Both the longitudinal track and the transverse support are triangular flat iron; The transverse support has two slots spaced apart, and the longitudinal track is embedded in the slots; Short steel bars are welded to both ends of the longitudinal track, and the longitudinal tracks between adjacent sections are connected end to end by the short steel bars.

4. The track-mounted concrete placing trolley for cooling towers according to claim 1, characterized in that, The fabric distribution device includes a support base, a storage hopper, and a material cylinder. The support base is fixedly installed on one end of the vehicle frame, the storage hopper is fixed on the support base, the material cylinder is connected to one side of the storage hopper, and a fabric distribution port is provided on the material cylinder.

5. The track-mounted concrete placing trolley for cooling towers according to claim 4, characterized in that, The material cylinder is equipped with a baffle plate, which is inserted between the material cylinder and the storage hopper.

6. The rail-mounted concrete placing trolley for cooling towers according to claim 4, characterized in that, The storage hopper is equipped with a pushing mechanism.

7. The rail-mounted concrete placing trolley for cooling towers according to claim 6, characterized in that, The feeding mechanism includes a guide rod and a scraper. The scraper is movably disposed inside the storage hopper, the guide rod is disposed outside the storage hopper, and the scraper is movably sleeved on the guide rod.

8. The rail-mounted concrete placing trolley for cooling towers according to claim 1, characterized in that, The manned device includes a manned platform and guardrails.

9. The track-mounted concrete placing trolley for cooling towers according to claim 1, characterized in that, The power system includes a drive motor and a transmission mechanism, and the drive motor is connected to the walking wheels through the transmission mechanism.

10. The rail-mounted concrete placing trolley for cooling towers according to claim 1, characterized in that, The control panel includes control buttons, which are electrically connected to the control terminal of the power system.

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