Material hoisting equipment for bridge construction

Abstract

The utility model relates to material hoisting equipment for bridge construction, which comprises a main stand column and a steel wire rope with a hook at the tail end, a support column vertically extending upwards is rotatably mounted at the top of the main stand column, a top seat is fixed at the top of the support column, and a telescopic arm capable of performing two-stage telescoping in the horizontal direction is arranged on the side of the top seat. An annular wheel is arranged at the end part of the telescopic arm; a winding and unwinding mechanism is arranged on the top of the top base. Through the telescopic work of the telescopic arm, the supporting position of the annular wheel on the steel wire rope is changed, horizontal transfer of the hook and materials is achieved, the steel wire rope is wound and released through the work of the winding and unwinding mechanism, lifting and hoisting of the materials are achieved, and the supporting column is driven to rotate through the work of the driving mechanism. The material can be driven to be parallel to the ground and rotate and move around the main stand column, so that the hoisting and translation range of the material is large enough, the telescopic arm can retract and reset without occupying too much space, and adverse effects on construction above a bridge floor are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting equipment, in particular to material hoisting equipment for bridge construction. Background Art

[0002] During the construction of bridges, materials often need to be hoisted and moved. Currently, large cranes are usually used to hoist materials during bridge construction. However, for smaller bridges, large cranes are often difficult to use in narrow spaces. Therefore, small hoisting equipment is usually used to complete the hoisting and transfer of materials.

[0003] In the prior art, several small lifting equipment are usually arranged in an array along the extension direction of the bridge to meet the needs of lifting and transferring materials at multiple points. However, the lifting and transfer range of small lifting equipment is limited and it is difficult to meet the construction needs. Therefore, during the construction process, the position of the small lifting equipment needs to be constantly moved and adjusted, which is time-consuming and labor-intensive and affects the progress of the construction. Utility Model Content

[0004] The utility model aims to provide a material hoisting device for bridge construction which is small in size and has a large transfer range, and effectively solves the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions.

[0006] A material lifting equipment for bridge construction comprises a main column and a steel wire rope with a hook at the end, a pillar extending vertically upward is rotatably mounted on the top of the main column, a top seat is fixed on the top of the pillar, a telescopic arm capable of two-stage telescopic extension in the horizontal direction is provided on the side of the top seat, and an annular wheel is provided on the end of the telescopic arm; a winding and unwinding mechanism is provided on the top of the top seat, one end of the steel wire rope is wound on the winding and unwinding mechanism, and passes around the annular wheel and hangs downward after reversing, and the winding and unwinding mechanism is used to wind or release the steel wire rope; a driving mechanism is provided on the side of the main column, and the driving mechanism is used to drive the pillar to rotate.

[0007] It can be seen that the telescopic arm is extended and retracted to change the supporting position of the wire rope by the annular wheel, so as to realize the horizontal transfer of the hook and the material. The wire rope is wound and released by the winding and unwinding mechanism to realize the lifting and hoisting of the material. The support column is driven to rotate by the driving mechanism, so that the material can be driven to rotate and shift parallel to the ground and around the main column, so that the range of material lifting and translation is large enough. The telescopic design of the telescopic arm can retract and reset when not in lifting operation, without taking up too much space, avoiding adverse effects on the construction above the bridge deck. The overall structural layout is miniaturized and functionally complete, meeting the needs of material lifting for bridge construction.

[0008] Furthermore, the telescopic arm includes a sleeve, a first arm section and a second arm section; the sleeve is fixed to the side of the top seat, the first arm section is telescopically installed in the sleeve, and the second arm section is telescopically installed in the first arm section; the annular wheel is rotatably installed on the end of the second arm section extending to the outside.

[0009] The telescopic arm, sleeve and first arm section form a two-stage telescopic structure, which ensures that the transfer range is large enough and the overall span is smaller when retracted, and does not take up too much space.

[0010] Furthermore, the unwinding mechanism includes a U-shaped seat, a winding roller and a second drive motor; the U-shaped seat is fixed on the top of the top seat, the winding roller is rotatably installed on the U-shaped seat, and the wire rope is wound on the winding roller; the second drive motor is fixed on the side of the U-shaped seat, and its output shaft is fixedly connected to one end of the winding roller.

[0011] The winding roller is driven to rotate forward by the second driving motor, and the winding roller can rotate and reel the wire rope. The winding roller is driven to rotate reversely by the second driving motor, and the wire rope can be released, thereby effectively realizing the winding and unwinding of the wire rope.

[0012] Furthermore, the driving mechanism includes a first driving motor, a fixing seat and a main gear; the first driving motor is installed on the side of the main column through the fixing seat, and the main gear is fixed on the output shaft of the first driving motor; a gear ring is fixedly sleeved on the outside of the column, and the gear ring is meshed with the main gear.

[0013] The first driving motor drives the main gear to rotate, and the rotating main gear can engage the driving gear ring and drive the support column to rotate, thereby providing stable drive for the material to be transferred parallel to the ground and around the main column.

[0014] Furthermore, an annular groove is provided on the outside of the main column, and an annular support seat is installed in the annular groove for limited rotation. The outer diameter of the annular support seat is larger than the outer diameter of the main column; a support arm is fixed on the upper surface of the annular support seat, and the other end of the support arm extends obliquely and is fixedly connected to the outer wall of the sleeve.

[0015] By installing an inclined and extended support arm between the main column and the sleeve, a triangular structure is formed, which can provide stable support for the telescopic arm as a whole, ensure that the telescopic arm can withstand a large load, and improve the stability during material lifting and transfer. At the same time, one end of the support arm is fixed to an annular support seat rotatably installed on the main column, and has the ability to rotate relative to the main column, ensuring that the pillar will not be obstructed by the support arm when rotating and adjusting.

[0016] Furthermore, the bottom of the main column is fixed on a fixed base, the fixed base is rectangular, and fixing bolts are arranged near the four corners of the fixed base.

[0017] The main column can be fixed by fixing the fixed base on the bridge deck with fixing bolts, and the installation is firm enough to ensure safety during lifting.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows.

[0019] 1. The utility model works by telescoping the telescopic arm to change the supporting position of the annular wheel on the wire rope, thereby realizing the horizontal transfer of the hook and the material. The wire rope is wound and released by the winding and unwinding mechanism to realize the lifting and hoisting of the material. The support column is driven to rotate by the driving mechanism, which can drive the material to rotate and shift parallel to the ground and around the main column, so that the range of material hoisting and translation is large enough.

[0020] 2. The utility model adopts a telescopic design of the telescopic arm, which can be retracted and reset when not in lifting operation, without taking up too much space, thus avoiding adverse effects on the construction above the bridge deck. The overall structural layout is miniaturized and the functions are complete, which can meet the needs of material lifting in bridge construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a schematic diagram of the local structure of the top seat surface in the utility model;

[0023] Figure 3 It is a detailed structural diagram of the driving mechanism in the utility model;

[0024] Figure 4 It is a schematic diagram of the installation of the annular support seat structure in the utility model.

[0025] In the figure: 1. main column; 11. fixed base; 12. fixing bolt; 13. annular groove; 2. pillar; 3. top seat; 4. telescopic arm; 41. sleeve; 42. first arm section; 43. second arm section; 5. annular wheel; 6. wire rope; 61. hook; 7. driving mechanism; 71. first driving motor; 72. fixed seat; 73. main gear; 74. gear ring; 8. winding and unwinding mechanism; 81. U-shaped seat; 82. winding roller; 83. second driving motor; 9. support arm; 91. annular supporting seat. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms, "connection" and "installation" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. In addition, "connection" can be a direct connection or an indirect connection through an intermediate medium. Among them, "fixed" means that they are connected to each other and the relative position relationship after connection remains unchanged. The directional terms mentioned in the embodiments of the present utility model, such as "inside", "outside", "top", "bottom", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present utility model, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present utility model.

[0028] In the embodiments of the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0029] See also Figure 1-Figure 4 The utility model provides a material lifting equipment for bridge construction, comprising a main column 1 and a steel wire rope 6 with a hook 61 at the end. A pillar 2 extending vertically upward is rotatably installed on the top of the main column 1, and a top seat 3 is fixed on the top of the pillar 2. A telescopic arm 4 capable of two-stage telescopic extension in the horizontal direction is provided on the side of the top seat 3, and a ring wheel 5 is provided on the end of the telescopic arm 4; a winding mechanism 8 is provided on the top of the top seat 3, one end of the steel wire rope 6 is wound on the winding mechanism 8, and passes around the ring wheel 5 and hangs downward after reversing, and the winding mechanism 8 is used to wind or release the steel wire rope 6; a driving mechanism 7 is provided on the side of the main column 1, and the driving mechanism 7 is used to drive the pillar 2 to rotate.

[0030] This hoisting equipment is set on the bridge deck. When working, the material is first hung on the hook 61, and then the hoisting work begins. First, the telescopic arm 4 is extended and the annular wheel 5 is driven to move. At this time, the supporting position of the annular wheel 5 on the wire rope 6 changes, and then the hook 61 and the material are driven to rise, until the annular wheel 5 moves to the required position, the telescopic arm 4 stops extending, that is, the horizontal transfer of the hook 61 and the material is realized, and then the wire rope 6 is wound by the winding mechanism 8, and the hook 61 is continuously driven to rise to the required height to realize the lifting of the material. If the height of the material at the required position remains unchanged, the wire rope 6 can be released by the winding mechanism 8 while the telescopic arm 4 is extended. At the same time, the driving mechanism 7 can drive the pillar 2, the top seat 3, the telescopic arm 4, the annular wheel 5 and the wire rope 6 to rotate around the main column 1 as a whole, and can drive the material to rotate and shift parallel to the ground and around the main column 1, and cooperate with the telescopic arm 4 to extend and retract, which greatly increases the range of material hoisting translation. When materials need to be lifted in situ, the telescopic arm 4 does not need to be extended, and the wire rope 6 can be directly reeled in through the winding mechanism 8. At the same time, the telescopic design of the telescopic arm 4 can be retracted and reset when not in lifting operation, without taking up too much space, thereby avoiding adverse effects on the construction above the bridge deck.

[0031] Specifically, the telescopic arm 4 includes a sleeve 41, a first arm section 42 and a second arm section 43; the sleeve 41 is fixed to the side of the top seat 3, the first arm section 42 is telescopically installed in the sleeve 41, and the second arm section 43 is telescopically installed in the first arm section 42; the annular wheel 5 is rotatably installed on the end of the second arm section 43 extending to the outside. The telescopic arm 4, the sleeve 41 and the first arm section 42 form a two-stage telescopic structure, and the telescopic drive is achieved by hydraulic, chain or gear and other mechanical methods, and the two-stage telescopic ensures that the transfer range is large enough, and the overall span is smaller when retracted, and does not occupy too much space.

[0032] Specifically, the winding mechanism 8 includes a U-shaped seat 81, a winding roller 82 and a second drive motor 83; the U-shaped seat 81 is fixed on the top of the top seat 3, the winding roller 82 is rotatably mounted on the U-shaped seat 81, and the wire rope 6 is wound on the winding roller 82; the second drive motor 83 is fixed on the side of the U-shaped seat 81, and its output shaft is fixedly connected to one end of the winding roller 82. The winding roller 82 can rotate and rewind the wire rope 6 by driving the winding roller 82 to rotate forward through the operation of the second drive motor 83, and the wire rope 6 can be released by driving the winding roller 82 to rotate in the reverse direction through the operation of the second drive motor 83, thereby effectively realizing the winding and unwinding of the wire rope 6.

[0033] Specifically, the driving mechanism 7 includes a first driving motor 71, a fixing seat 72 and a main gear 73; the first driving motor 71 is installed on the side of the main column 1 through the fixing seat 72, and the main gear 73 is fixed on the output shaft of the first driving motor 71; a gear ring 74 is fixedly sleeved on the outside of the column 2, and the gear ring 74 meshes with the main gear 73. The main gear 73 is driven to rotate by the operation of the first driving motor 71, and the rotating main gear 73 can mesh with the driving gear ring 74 and drive the column 2 to rotate, thereby providing a stable drive for the material to be transferred parallel to the ground and around the main column 1.

[0034] Specifically, an annular groove 13 is provided on the outside of the main column 1, and an annular support seat 91 is installed in a limited rotation in the annular groove 13, and the outer diameter of the annular support seat 91 is larger than the outer diameter of the main column 1; a support arm 9 is fixed on the upper surface of the annular support seat 91, and the other end of the support arm 9 extends obliquely and is fixedly connected to the outer wall of the sleeve 41. By installing the obliquely extended support arm 9 between the main column 1 and the sleeve 41, a triangular structure is formed, which can provide stable support for the telescopic arm 4 as a whole, ensure that the telescopic arm 4 can withstand a large load, and improve the stability during the lifting and transfer of materials. At the same time, one end of the support arm 9 is fixed on the annular support seat 91 rotatably installed on the main column 1, and has the ability to rotate relative to the main column 1, ensuring that the support column 2 will not be blocked by the support arm 9 during rotation adjustment.

[0035] Specifically, the bottom of the main column 1 is fixed on a fixed base 11, which is rectangular, and the fixed base 11 is provided with fixing bolts 12 near its four corners. The fixing base 11 is fixed to the bridge deck by the fixing bolts 12, so that the main column 1 can be fixed, and the installation is firm enough to ensure safety during hoisting.

[0036] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A material lifting device for bridge construction, comprising a main column (1) and a steel wire rope (6) with a hook (61) at the end, characterized in that: A support column (2) extending vertically upward is rotatably mounted on the top of the main column (1), a top seat (3) is fixed on the top of the support column (2), a telescopic arm (4) capable of two-stage telescopic extension in the horizontal direction is provided on the side of the top seat (3), and an annular wheel (5) is provided at the end of the telescopic arm (4); A winding and unwinding mechanism (8) is provided on the top of the top seat (3), one end of the steel wire rope (6) is wound on the winding and unwinding mechanism (8), and is suspended downward after passing through the annular wheel (5) and changing direction. The winding and unwinding mechanism (8) is used to wind up or release the steel wire rope (6); A driving mechanism (7) is provided on the side of the main column (1), and the driving mechanism (7) is used to drive the support column (2) to rotate.

2. The material lifting equipment for bridge construction according to claim 1 is characterized by: The telescopic arm (4) comprises a sleeve (41), a first arm section (42) and a second arm section (43); The sleeve (41) is fixed to the side of the top seat (3), the first arm section (42) is telescopically installed in the sleeve (41), and the second arm section (43) is telescopically installed in the first arm section (42); The annular wheel (5) is rotatably mounted on the end of the second arm section (43) extending to the outside.

3. The material lifting equipment for bridge construction according to claim 1 is characterized by: The unwinding mechanism (8) comprises a U-shaped seat (81), a winding roller (82) and a second driving motor (83); The U-shaped seat (81) is fixed on the top of the top seat (3), the winding roller (82) is rotatably mounted on the U-shaped seat (81), and the steel wire rope (6) is wound on the winding roller (82); The second driving motor (83) is fixed to the side of the U-shaped seat (81), and its output shaft is fixedly connected to one end of the winding roller (82).

4. The material hoisting equipment for bridge construction according to claim 1 is characterized by: The driving mechanism (7) comprises a first driving motor (71), a fixing seat (72) and a main gear (73); The first drive motor (71) is installed on the side of the main column (1) through the fixing seat (72), and the main gear (73) is fixed on the output shaft of the first drive motor (71); A toothed ring (74) is fixedly sleeved on the outside of the pillar (2), and the toothed ring (74) is correspondingly meshed with the main gear (73).

5. The material hoisting equipment for bridge construction according to claim 2 is characterized by: An annular groove (13) is provided on the outside of the main column (1), an annular support seat (91) is installed in the annular groove (13) for limited rotation, and the outer diameter of the annular support seat (91) is larger than the outer diameter of the main column (1); A support arm (9) is fixed on the upper surface of the annular support seat (91), and the other end of the support arm (9) extends obliquely and is fixedly connected to the outer wall of the sleeve (41).

6. The material hoisting equipment for bridge construction according to claim 1, characterized in that: The bottom of the main column (1) is fixed on a fixed base (11), the fixed base (11) is rectangular, and fixing bolts (12) are provided on the fixed base (11) near its four corners.

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