Simple portal crane device for high concrete pier top

Abstract

The utility model provides a kind of concrete high pier pier top simple portal hoisting device, it is related to bridge construction technical field, including the guide rail system being installed at the top of concrete high pier, hoisting portal, for hoisting the hoisting trolley of being hoisted object;The hoisting trolley is movably installed on the upper end of hoisting portal, for driving hoisted object longitudinal movement;Hoisting portal is movably installed on guide rail system, for driving hoisting trolley transverse movement.This application is hoisted object by hoisting trolley and is hoisted and moves up after, supports hoisted object by hoisting trolley and is moved longitudinally in hoisting portal, again, hoisted object is transversely moved in guide rail system by hoisting portal, finally reaches the position required, realizes the three-dimensional space transfer of hoisted object, without large hoisting equipment participation, improve work efficiency, and save cost.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction technology, and more specifically, to a simple gantry crane device for the top of a concrete pier. Background Technology

[0002] Concrete high piers refer to bridge piers with a relatively large height (usually considered to be over 30 or 40 meters). Due to their "height", they differ significantly from ordinary-height bridge piers in terms of load-bearing performance, stability, and construction technology, and the design and construction difficulty is also greatly increased.

[0003] In actual construction, after the concrete pier is completed, the working surface at the top of the pier often involves subsequent construction such as the pouring of bearing pad stones, the installation of dampers, and the erection of temporary beam storage supports. Various small-tonnage building materials and construction equipment need to be frequently transferred on the pier top plane. Considering the structural characteristics of concrete piers, general ground lifting machinery is no longer sufficient for hoisting requirements, and the use of large lifting equipment such as tower cranes or floating cranes has problems such as low construction efficiency and high hoisting costs. Utility Model Content

[0004] This utility model aims to solve the problems of low construction efficiency and high hoisting cost in the construction of concrete high piers using large lifting equipment such as tower cranes or floating cranes.

[0005] To solve the above problems, this utility model provides a simple gantry crane device for the top of a concrete pier, including a guide rail system installed on the top of the concrete pier, a crane gantry, and a crane trolley for lifting the object being lifted. The lifting trolley is movably mounted on the upper end of the lifting gantry and is used to drive the suspended object to move longitudinally. The lifting gantry is movably mounted on the guide rail system and is used to drive the lifting trolley to move laterally.

[0006] The present invention provides a simple gantry crane for the top of a concrete pier, which, compared with the prior art, has the following beneficial effects, but is not limited to: This simple gantry crane for concrete pier tops operates by moving the gantry crane along the guide rail system to the end of the concrete pier. Workers then use a trolley to lift and move the load upwards. The load is then supported and moved longitudinally along the gantry crane, further propelling it longitudinally above the pier top. The gantry crane then moves laterally along the guide rail system, again propelling the load laterally above the pier top, ultimately reaching the desired location. This achieves three-dimensional spatial transfer of the load without the need for large lifting equipment, improving work efficiency and saving costs.

[0007] Furthermore, the guide rail system includes a support base frame, which is welded together from four limiting plates in the front, rear, left, and right directions. A transverse guide rail is welded to the top of the front and rear limiting plates, and a connecting rod is welded between the two transverse guide rails.

[0008] Furthermore, the limiting plate is an angle steel, and the front and rear limiting plates are respectively attached to the front and rear transverse outer edges of the top of the concrete pier; the left and right limiting plates are respectively attached to the left and right longitudinal outer edges of the top of the concrete pier.

[0009] Furthermore, the lifting gantry includes a load-bearing rail beam, the lifting trolley is connected to the load-bearing rail beam, and support frames are provided on both the front and rear sides of the bottom of the load-bearing rail beam. Two transverse pulleys are provided at the bottom of the support frames, and the transverse pulleys are located in the transverse guide rail.

[0010] Furthermore, the support frame is composed of mutually perpendicular columns and beams, with the upper and lower ends of the columns welded to the load-bearing track beam and the beams respectively, and the transverse pulleys installed at the bottom of the beams.

[0011] Furthermore, transverse braces are welded to both the left and right sides of the column, and the bottom end of the transverse braces is fixedly connected to the support beam.

[0012] Furthermore, a longitudinal diagonal brace is fixedly connected between the column and the load-bearing track beam.

[0013] Furthermore, the lifting trolley includes a lifting chain hoist and a U-shaped connecting plate connected to the load-bearing rail beam. A lifting connecting plate is fixedly connected to the bottom of the U-shaped connecting plate, and a lifting chain hoist is connected to the bottom end of the lifting connecting plate via a lifting connecting rope.

[0014] Furthermore, the inner cavity of the U-shaped connecting plate is fixedly connected to the left and right side walls with through-core connecting shafts. Both sets of through-core connecting shafts are rotatably connected to longitudinal transfer pulleys that roll into contact with the side grooves of the load-bearing track beam. Limiting rollers are provided on the side of the two longitudinal transfer pulleys that are far apart from each other. The limiting rollers are rotatably connected to the corresponding through-core connecting shafts.

[0015] Furthermore, limit components are provided on both the left and right sides of the support beam. Each limit component includes a limit block that is fixedly connected to the end of the support beam. The limit block is slidably connected to the transverse guide rail. A threaded sleeve is welded to the outer wall of the limit block. A locking bolt is threadedly connected to the threaded sleeve. The locking bolt abuts against the outer wall of the transverse guide rail. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the simple gantry crane device for the top of a concrete pier according to an embodiment of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the simple gantry crane device for the top of a concrete pier according to an embodiment of the present invention. Figure 2 ; Figure 3 This is a schematic diagram showing the connection state between the guide rail system and the concrete pier in an embodiment of this utility model; Figure 4 This is a schematic diagram of the guide rail system according to an embodiment of the present invention; Figure 5 For the present utility model Figure 4 Top view; Figure 6 This is a schematic diagram of the structure of the lifting gantry according to an embodiment of the present utility model. Figure 1 ; Figure 7 This is a schematic diagram of the structure of the lifting gantry according to an embodiment of the present utility model. Figure 2 ; Figure 8 This utility model Figure 1 A schematic diagram of the structure of the crane trolley in the diagram; Figure 9 For the present utility model Figure 8 The right view; Figure 10 This is a schematic diagram of the connection structure between the limiting component and the transverse guide rail of this utility model.

[0017] Explanation of reference numerals in the attached figures: 1. Guide rail system; 101. Limiting plate; 102. Transverse guide rail; 103. Connecting rod; 2. Lifting gantry; 201. Load-bearing track beam; 202. Support frame; 2021. Column; 2022. Support beam; 203. Transverse pulley; 204. Longitudinal diagonal brace; 205. Transverse diagonal brace; 3. Lifting trolley; 301. Longitudinal pulley; 302. U-shaped connecting plate; 303. Through-core connecting shaft; 304. Limiting roller; 305. Lifting chain hoist; 306. Lifting connecting rope; 307. Lifting connecting plate; 4. Concrete high pier; 5. Limiting component; 501. Limiting block; 502. Threaded sleeve; 503. Locking bolt. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings showing multiple embodiments according to this application. It should be understood that the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments described in this application without creative effort will fall within the scope of protection of this application.

[0019] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. The terminology used in the description of this application is for the purpose of describing specific embodiments only and is not intended to limit the use of open-ended terms such as "comprising," "including," "having," "containing," etc., in the description, claims, and accompanying drawings. Therefore, "comprising," "including," or "having" refers to, for example, a method or apparatus having one or more steps or elements, but not limited to having only these one or more elements. The terms "first," "second," etc., in the description, claims, or accompanying drawings are used to distinguish different objects, not to describe a specific order or hierarchy. 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 that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0020] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] Furthermore, in the attached diagram, the X-axis represents the vertical direction, that is, the front-to-back position, and the positive direction of the X-axis (that is, the direction the arrow points to) represents the front, and the negative direction of the X-axis (that is, the direction opposite to the positive direction of the X-axis) represents the back. In the attached diagram, the Y-axis represents the horizontal direction, that is, the left-to-right position, and the positive direction of the Y-axis (that is, the direction the arrow points to) represents the left, and the negative direction of the Y-axis (that is, the direction opposite to the positive direction of the Y-axis) represents the right. In the attached diagram, the Z-axis represents the vertical direction, that is, the up-to-down position, and the positive direction of the Z-axis (that is, the direction the arrow points to) represents the up, and the negative direction of the Z-axis (that is, the direction opposite to the positive direction of the Z-axis) represents the down.

[0022] It should also be noted that the aforementioned X-axis, Y-axis and Z-axis are only for the purpose of facilitating the description of 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.

[0023] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can be a direct connection or an indirect connection through an intermediate medium; or 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 application according to the specific circumstances.

[0024] It should be emphasized that when the term "comprising / including" is used in this specification, it is used to explicitly indicate the presence of the stated feature, integer, step, or component, but does not exclude the presence or addition of one or more other features, integers, steps, parts, or groups of features, integers, steps, or parts.

[0025] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0026] See Figure 1 and Figure 2 A simple gantry crane device for the top of a concrete pier according to an embodiment of the present invention includes a guide rail system 1, a crane gantry 2, and a crane trolley 3 for lifting objects installed on the top of the concrete pier 4. The lifting trolley 3 is movably mounted on the upper end of the lifting gantry 2 to drive the suspended object to move longitudinally; The crane gantry 2 is movably mounted on the guide rail system 1 and is used to drive the crane trolley 3 to move laterally.

[0027] In this embodiment, the simple gantry crane on the top of the concrete pier is used by moving the gantry 2 on the guide rail system 1 to the end of the concrete pier 4. The operator lifts the object to be lifted by the lifting trolley 3 and moves it upward. The operator then supports the object and moves it longitudinally on the gantry 2 via the lifting trolley 3. This further moves the object longitudinally above the top plane of the concrete pier 4. Then, the gantry 2 moves laterally on the guide rail system 1, further moving the object laterally above the top plane of the concrete pier 4. Finally, the object reaches the desired position, realizing the three-dimensional spatial transfer of the object. This eliminates the need for large lifting equipment, improves work efficiency, and saves costs.

[0028] See Figures 3-5Optionally, the guide rail system 1 includes a support base frame, which is welded together from four limiting plates 101 in the front, rear, left, and right directions. A transverse guide rail 102 is welded to the top of the two limiting plates 101 in the front and rear directions, and a connecting rod 103 is welded between the two transverse guide rails 102.

[0029] In this embodiment, the lateral guide rail 102 supports and guides the lateral movement of the lifting gantry 2, and the connecting rod 103 enhances the structural stability of the supporting base.

[0030] Specifically, there are at least two connecting rods 103, and one is welded to the top of each of the left and right limit plates 101, which improves the structural stability of the support frame during use and prevents deformation.

[0031] See Figures 3-5 Optionally, the limiting plate 101 is an angle steel, and the front and rear limiting plates 101 are respectively attached to the front and rear transverse outer edges of the top of the concrete pier 4; the left and right limiting plates 101 are respectively attached to the left and right longitudinal outer edges of the top of the concrete pier 4.

[0032] In this embodiment, a support base is formed by welding four limiting plates 101 of the angle steel structure, which facilitates the snap-fit ​​installation and disassembly of the support base on the top of the concrete pier 4. The structure is simple and enables the device to be recycled and reused, greatly reducing the investment cost.

[0033] See Figure 6 and Figure 7 Optionally, the lifting gantry 2 includes a load-bearing rail beam 201, and the lifting trolley 3 is connected to the load-bearing rail beam 201. Support frames 202 are provided on both the front and rear sides of the bottom of the load-bearing rail beam 201. Two transverse pulleys 203 are provided at the bottom of the support frame 202, and the transverse pulleys 203 are located in the transverse guide rail 102.

[0034] In this embodiment, the transverse pulley 203 moves along the length of the transverse guide rail 102, which facilitates the transverse movement of the object lifted by the lifting gantry 2 and the lifting trolley 3 on the top plane of the concrete pier 4. This reduces the difficulty of main structure construction or equipment installation, improves construction quality and speeds up the overall construction progress.

[0035] See Figure 6 and Figure 7 Optionally, the support frame 202 is composed of mutually perpendicular columns 2021 and support beams 2022. The upper and lower ends of the columns 2021 are welded to the load-bearing track beams 201 and support beams 2022 respectively, and the transverse pulleys 203 are installed at the bottom of the support beams 2022.

[0036] In this embodiment, the support column 2021 provides stable support for the load-bearing track beam 201 and the support beam 2022, which facilitates the lateral pulley 203 to drive the support frame 202 and the load-bearing track beam 201 to move laterally together.

[0037] See Figure 6 and Figure 7 Optionally, the left and right sides of the column 2021 are welded with horizontal diagonal braces 205, and the bottom end of the horizontal diagonal braces 205 is fixedly connected to the support beam 2022.

[0038] In this embodiment, the horizontal diagonal brace 205 provides auxiliary support between the column 2021 and the support beam 2022, thereby lowering the center of gravity of the support frame 202 and improving the overall stability of the crane gantry 2.

[0039] See Figure 6 and Figure 7 Optionally, a longitudinal diagonal brace 204 is fixedly connected between the column 2021 and the load-bearing track beam 201.

[0040] In this embodiment, the overall structural stability of the lifting gantry 2 is improved by setting longitudinal diagonal bracing 204 and transverse diagonal bracing 205, which can ensure the safe and stable operation of the device under the gravity load of the lifted object and the transverse wind load.

[0041] See Figure 8 and Figure 9 Optionally, the lifting trolley 3 includes a lifting chain hoist 305 and a U-shaped connecting plate 302 connected to the load-bearing rail beam 201. A lifting connecting plate 307 is fixedly connected to the bottom of the U-shaped connecting plate 302, and the bottom end of the lifting connecting plate 307 is connected to the lifting chain hoist 305 via a lifting connecting rope 306.

[0042] In this embodiment, after the object is lifted by the hoisting chain hoist 305, the object can be slowly raised while the operator pulls the chain by hand.

[0043] It should be noted that the lifting chain hoist 305, also known as a hand chain hoist, is existing technology and can be purchased directly from the market. This invention only uses it without changing its structure and function.

[0044] See Figure 8 and Figure 9 Optionally, the inner walls of the U-shaped connecting plate 302 are fixedly connected with through-core connecting shafts 303. Both sets of through-core connecting shafts 303 are rotatably connected with longitudinal transfer pulleys 301 that roll with the side grooves of the load-bearing track beam 201. Limiting rollers 304 are provided on the side of the two longitudinal transfer pulleys 301 that are far apart from each other. The limiting rollers 304 are rotatably connected to the corresponding through-core connecting shafts 303.

[0045] In this embodiment, after the suspended object is lifted and moved to the required position, it rolls along the length of the load-bearing track beam 201 in the side groove of the load-bearing track beam 201 via two longitudinal transfer pulleys 301. This facilitates the longitudinal movement of the suspended object on the top plane of the concrete pier 4. In conjunction with the gantry 2, which moves laterally on the transverse guide rail 102 via transverse transfer pulleys 203, it enables the rapid three-dimensional transfer of building materials and equipment, improving installation accuracy and greatly increasing work efficiency. Furthermore, the longitudinal transfer pulleys 301 are limited by the rotation of the limiting rollers 304 on the through-core connecting shaft 303, allowing them to roll more stably in the side groove of the load-bearing track beam 201.

[0046] See Figure 7 and Figure 10 Optionally, limit components 5 are provided on both the left and right sides of the support beam 2022. The limit components 5 include limit blocks 501 fixedly connected to the ends of the support beam 2022. The limit blocks 501 are slidably connected to the transverse guide rail 102. A threaded sleeve 502 is welded to the outer wall of the limit blocks 501. A locking bolt 503 is threadedly connected to the threaded sleeve 502. The locking bolt 503 abuts against the outer wall of the transverse guide rail 102.

[0047] In this embodiment, when the lifting gantry 2 moves laterally on the guide rail system 1, it also drives the limiting blocks 501 connected to both sides of the support beam 2022 to move on the transverse guide rail 102. After the lifting gantry 2 stops moving laterally on the guide rail system 1, the locking bolt 503 is screwed and tightened in the threaded sleeve 502 so that the threaded end is pressed against the outer wall of the transverse guide rail 102. This facilitates the limiting and fixing of the support beam 2022 and the transverse guide rail 102, and further facilitates the limiting and fixing of the position of the lifting gantry 2 after it moves on the guide rail system 1, improving the stability of the lifting gantry 2 when it is not in use and preventing it from tipping over.

[0048] Although the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.

Claims

1. A simple gantry crane for the top of a high concrete pier, characterized in that, Includes a guide rail system (1) installed on top of a concrete pier (4), a lifting gantry (2), and a lifting trolley (3) for lifting the object being lifted. The lifting trolley (3) is movably installed on the upper end of the lifting gantry (2) to drive the suspended object to move longitudinally; The lifting gantry (2) is movably mounted on the guide rail system (1) for driving the lifting trolley (3) to move laterally.

2. The simple gantry crane device for the top of a concrete high pier according to claim 1, characterized in that, The guide rail system (1) includes a support base frame, which is made of four limiting plates (101) welded together. A transverse guide rail (102) is welded to the top of the two limiting plates (101) at the front and rear, and a connecting rod (103) is welded between the two transverse guide rails (102).

3. The simple gantry crane device for the top of a concrete pier according to claim 2, characterized in that, The limiting plate (101) is an angle steel. The front and rear limiting plates (101) are respectively attached to the front and rear transverse outer edges of the top of the concrete pier (4); the left and right limiting plates (101) are respectively attached to the left and right longitudinal outer edges of the top of the concrete pier (4).

4. The simple gantry crane device for the top of a concrete pier according to claim 2, characterized in that, The lifting gantry (2) includes a load-bearing track beam (201), and the lifting trolley (3) is connected to the load-bearing track beam (201). Support frames (202) are provided on both the front and rear sides of the bottom of the load-bearing track beam (201). Two transverse pulleys (203) are provided at the bottom of the support frame (202), and the transverse pulleys (203) are located in the transverse guide rail (102).

5. The simple gantry crane device for the top of a concrete pier according to claim 4, characterized in that, The support frame (202) is composed of mutually perpendicular columns (2021) and beams (2022). The upper and lower ends of the columns (2021) are welded to the load-bearing track beam (201) and the beams (2022) respectively. The transverse pulleys (203) are installed at the bottom of the beams (2022).

6. The simple gantry crane device for the top of a concrete pier according to claim 5, characterized in that, The column (2021) is welded with transverse braces (205) on both the left and right sides, and the bottom end of the transverse braces (205) is fixedly connected to the support beam (2022).

7. The simple gantry crane device for the top of a concrete pier according to claim 5, characterized in that, The column (2021) is fixedly connected to the load-bearing track beam (201) by a longitudinal diagonal brace (204).

8. The simple gantry crane device for the top of a concrete pier according to claim 4, characterized in that, The lifting trolley (3) includes a lifting chain hoist (305) and a U-shaped connecting plate (302) connected to the load-bearing rail beam (201). The bottom of the U-shaped connecting plate (302) is fixedly connected to a lifting connecting plate (307), and the bottom end of the lifting connecting plate (307) is connected to the lifting chain hoist (305) via a lifting connecting rope (306).

9. The simple gantry crane device for the top of a concrete pier according to claim 8, characterized in that, The inner walls of the U-shaped connecting plate (302) are fixedly connected with through-core connecting shafts (303). Both sets of through-core connecting shafts (303) are rotatably connected with longitudinal transfer pulleys (301) that roll in cooperation with the side grooves of the load-bearing track beam (201). On the side of the two longitudinal transfer pulleys (301) that are far apart from each other, there are limit rollers (304). The limit rollers (304) are rotatably connected to the corresponding through-core connecting shafts (303).

10. The simple gantry crane device for the top of a concrete pier according to claim 5, characterized in that, Limiting components (5) are provided on both the left and right sides of the support beam (2022). The limiting components (5) include limiting blocks (501) fixedly connected to the end of the support beam (2022). The limiting blocks (501) are slidably connected to the transverse guide rail (102). A threaded sleeve (502) is welded to the outer wall of the limiting block (501). A locking bolt (503) is threadedly connected in the threaded sleeve (502). The locking bolt (503) abuts against the outer wall of the transverse guide rail (102).

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