Overload structure position adjusting device of fixed type steel wire rope hoist

Abstract

The utility model discloses an overload structure position adjusting device of a fixed type steel wire rope hoist, and relates to the technical field of hoisting equipment. Comprising a hoist rack, a lifting driving part, a bottom foot plate, a connecting rod, a limiting box and a fixing plate, a cross beam is arranged on the hoist rack, and a pulley hanging plate, a pulley fixedly connected to the bottom of the pulley hanging plate and a thickening plate fixedly connected to the pulley hanging plate are fixedly connected to the cross beam; according to the overload limiter embedded in the mounting hole assembly in the thickening plate, a stable and adjustable mounting environment is provided for the overload limiter through the mounting hole assembly, the base serves as a supporting structure, the fixing ring is used for bearing the overload limiter, and the fixing cylinder further enhances the stability and firmness of the structure; and the overload limiter is convenient to mount and fix.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting equipment, in particular to an overload structure position adjustment device for a fixed wire rope hoist. Background Art

[0002] In industrial production and construction, fixed wire rope hoists are essential lifting equipment, widely used for lifting, handling, and positioning cargo. These hoists utilize a lifting drive to drive a wire rope for lifting and lowering, resulting in a compact structure, ease of operation, and a high load capacity. However, in practice, wire rope hoists often face the risk of overloading due to factors such as improper operation, excessive loads, and aging equipment. This can not only damage the equipment but also cause serious safety accidents, posing a serious threat to human life and property.

[0003] Overload limiters are widely used to limit the overload of lifting machinery. They are important safety protection devices to ensure the safe use of lifting machinery. During operation, the equipment needs to set parameters for the configured safe load to ensure the safety factor.

[0004] However, traditional fixed wire rope hoists have certain limitations when it comes to overload protection. For one thing, customer requirements for equipment frame size, number of ropes, and height restrictions often limit the length of the equipment's crossbeam, making it impossible to reserve space for an overload limiter. Furthermore, even if an overload limiter is installed, its installation location is often fixed, making it difficult to flexibly adjust according to actual needs and difficult to install and adjust, limiting the wire rope hoist's applicability in different working conditions.

[0005] Therefore, developing a fixed wire rope hoist overload structure position adjustment device with simple structure, convenient operation and adjustable position is of great significance for improving the safety performance and operating performance of the wire rope hoist. Utility Model Content

[0006] In view of the deficiencies in the prior art, the present invention aims to provide an overload structure position adjustment device for a fixed wire rope hoist.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] A device for adjusting the position of an overload structure of a fixed wire rope hoist comprises a hoist frame, and

[0009] A lifting drive component is fixedly mounted on one side of the hoist frame and is used to provide lifting power for the wire rope hoist;

[0010] A base plate is fixedly mounted on the bottom of the hoist frame and serves as a supporting base for the wire rope hoist;

[0011] Connecting rod, which fixes the bottom plate and the side of the hoist frame to ensure the stability and load-bearing capacity of the hoist frame;

[0012] The limit box is installed on one side of the hoist frame to limit the lifting height and stroke of the wire rope hoist;

[0013] Fixed plates are provided on both sides of the hoist frame to enhance the overall rigidity and stability of the hoist frame;

[0014] The crossbeam is fixedly connected to the upper end of the hoist frame and is used to bear the weight of the pulley hanging plate and all the components below it to ensure the stability and safety of the entire device.

[0015] The pulley hanging plate is fixedly connected to the cross beam and serves as an installation base for the pulley suspension plate.

[0016] The pulley suspension plate is fixedly connected to the pulley hanging plate and is the direct support structure of the pulley. It is used to fix the pulley in the correct position and ensure that the wire rope can smoothly pass around the pulley to achieve the lifting and lowering operation of the cargo.

[0017] The pulley is fixedly connected to the bottom of the pulley suspension plate. Through friction and rolling with the wire rope, it transmits the power generated by the lifting drive to the wire rope, thereby realizing the lifting and lowering control of the goods.

[0018] The thickened plate is fixedly connected to the pulley suspension plate, which not only enhances the load-bearing capacity of the pulley suspension plate but also provides installation space;

[0019] an overload limiter, embedded in the mounting hole assembly in the thickened plate, for limiting overload of the wire rope hoist;

[0020] Preferably, the mounting hole assembly includes: a base, a fixing ring arranged on the base, and a fixing cylinder arranged outside the fixing ring.

[0021] The mounting hole assembly provides a stable and adjustable installation environment for the overload limiter. The base serves as a supporting structure, the fixing ring is used to carry the overload limiter, and the fixing cylinder further enhances the stability and firmness of the structure, facilitating the installation and fixation of the overload limiter.

[0022] Preferably, a spring is provided in the base, and the spring is connected to the bottom of the fixing ring.

[0023] A certain elasticity is provided between the base and the fixing ring by the spring.

[0024] Preferably, a rotating screw is provided inside the spring, the rotating screw passes through the base and the fixing ring and is connected to a nut, and the nut is fixedly connected to the top end of the fixing ring.

[0025] The combination of a rotating screw and nut provides an adjustable fastening mechanism for the retaining ring. By rotating the screw, the relative position between the retaining ring and the base can be easily adjusted, thereby achieving fine-tuning of the overload limiter's installation position to meet the needs of different working conditions. At the same time, this fastening method also ensures the stability and reliability of the overload limiter during installation.

[0026] Preferably, a clamping arm is provided on the fixing ring, the bottom end of the clamping arm is rotatably connected to the fixing cylinder through an insertion rod, and a groove corresponding to the clamping arm is provided on the fixing cylinder.

[0027] The groove design of the clamping arm and the fixing cylinder together form a flexible clamping mechanism. By rotating the clamping arm, the overload limiter can be easily clamped or released, facilitating the rapid installation and removal of the overload limiter.

[0028] Preferably, the clamping arms are arranged in a circumferential array on the fixing ring.

[0029] The circular array of clamping arms ensures uniform force distribution during installation, preventing equipment damage or safety hazards caused by uneven force distribution. The synergistic effect of multiple clamping arms also enhances the stability and load-bearing capacity of the overload limiter, ensuring optimal performance under various operating conditions.

[0030] Preferably, the thickened plate is provided with a corresponding groove for card clamping on the base.

[0031] By arranging the cards on the thickened plate to be connected to the corresponding grooves on the base, not only the stability and durability of the structure are enhanced, but also the installation and disassembly process is simplified.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] 1. The mounting hole assembly, consisting of a base, retaining ring, and retaining cylinder, provides a stable and adjustable mounting environment for the overload limiter. This device allows for flexible adjustment of the overload limiter's mounting position, particularly when the customer has restrictions on equipment rack size and height. This eliminates the issue of limited crossbeam length preventing the overload limiter from being properly positioned, enhancing the device's applicability and flexibility.

[0034] 2. Through the combination of a rotating screw and nut, as well as the groove design of the clamping arm and the fixed barrel, this utility model achieves rapid installation and removal of the overload limiter. This design not only simplifies the operation process, reduces installation difficulty and cost, but also improves work efficiency, making maintenance or replacement of the overload limiter more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0036] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0037] Figure 2 A top view of the overall structure of the utility model;

[0038] Figure 3 This is a schematic diagram of the installation structure of the pulley in the utility model;

[0039] Figure 4 This is a schematic structural diagram of the mounting hole assembly in the present utility model;

[0040] Figure 5 It is a cross-sectional view of the mounting hole assembly in the present utility model;

[0041] Figure 6 This is a schematic diagram of the installation structure of the clamping arm and the fixing cylinder in the utility model;

[0042] Figure 7 for Figure 6 Schematic diagram of the structure enlarged at point A.

[0043] Among them: 1. Lifting drive component; 2. Base plate; 3. Connecting rod; 4. Limit box; 5. Fixed plate; 101. Pulley hanging plate; 102. Pulley; 103. Overload limiter; 104. Thickened plate; 105. Crossbeam; 106. Pulley hanging plate; 107. Card; 11. Base; 12. Fixed cylinder; 13. Fixed ring; 14. Clamping arm; 141. Insert rod; 15. Rotating screw; 16. Nut; 17. Spring. DETAILED DESCRIPTION

[0044] like Figure 1-Figure 7 As shown, this embodiment aims to provide a new type of overload structure position adjustment device, which realizes the rapid installation, disassembly and position adjustment of the overload limiter 103 by optimizing the design of the mounting hole assembly, while ensuring the accuracy and stability of the overload limit to meet the use requirements under different working conditions.

[0045] First, choose the appropriate size hoist frame according to the work requirements and ensure its structural stability, as well as,

[0046] The lifting drive component 1 is fixedly installed on one side of the hoist frame to ensure that the lifting drive component 1 can run smoothly and provide stable lifting power for the wire rope hoist.

[0047] The bottom plate 2 is fixedly installed on the bottom of the hoist frame as a supporting base for the wire rope hoist to ensure the stability of the hoist frame.

[0048] The connecting rod 3 is used to fix the base plate 2 to the side of the hoist frame, thereby further enhancing the carrying capacity of the hoist frame.

[0049] The limit box 4 is installed on one side of the hoist frame to limit the lifting height and stroke of the wire rope hoist to ensure safe operation.

[0050] Fixed plates 5 are provided on both sides of the hoist frame to enhance the overall rigidity and stability of the hoist frame.

[0051] Pulley 102 and thickened plate 104 are installed: beam 105 is fixedly connected to the upper end of the hoist frame as a supporting structure for the pulley hanging plate 106.

[0052] The pulley hanging plate 106 is fixedly connected to the beam 105 to ensure that the pulley hanging plate 106 can run smoothly.

[0053] The pulley suspension plate 101 is fixedly connected to the pulley hanging plate 106 to provide an installation position for the pulley 102.

[0054] The pulley 102 is fixedly connected to the bottom of the pulley suspension plate 101 to ensure that the wire rope can smoothly pass around the pulley 102 for lifting operation.

[0055] The thickened plate 104 is fixedly connected to the pulley suspension plate 101 to provide a stable installation environment for the overload limiter 103 and enhance the load-bearing capacity of the pulley suspension plate 101 .

[0056] The card 107 is fixedly connected to the thickened plate 104 by bolts and is used to be engaged with the corresponding groove on the base 11.

[0057] Installation of the mounting hole assembly: A mounting hole assembly is provided on the thickened plate 104, including a base 11, a fixing ring 13 and a fixing tube 12. The base 11 is fixed on the thickened plate 104, the fixing ring 13 is installed on the base 11, and the fixing tube 12 is sleeved on the outside of the fixing ring 13 and fixedly connected to the base 11.

[0058] Installation of spring 17 and rotating screw 15: A spring 17 is set inside the base 11, and the spring 17 is connected to the bottom of the fixed ring 13. A rotating screw 15 is set inside the spring 17. The rotating screw 15 passes through the base 11 and the fixed ring 13 and is connected to the nut 16. The nut 16 is fixedly connected to the top of the fixed ring 13. The relative position between the fixed ring 13 and the base 11 can be adjusted by rotating the screw 15.

[0059] Installation of the clamping arm 14: A clamping arm 14 is set on the fixing ring 13. The bottom end of the clamping arm 14 is rotatably connected to the fixing cylinder 12 through an insert rod 141. A groove corresponding to the clamping arm 14 is set on the fixing cylinder 12. By rotating the clamping arm 14, the clamping or release operation of the overload limiter 103 can be achieved.

[0060] The overload limiter 103 is embedded in the mounting hole assembly in the thickened plate 104 to ensure that the overload limiter 103 can work stably and accurately detect overload conditions.

[0061] Working principle: Due to the spring pressure of the spring 17 on the fixing ring 13, the lower end of the fixing ring 13 will squeeze the bottom end of the clamping arm 14 upward. Since the bottom end of the clamping arm 14 is rotatably connected to the fixing cylinder 12 through the insertion rod 141, the clamping arm 14 will be in an open state through the lever principle. At this time, by rotating the screw 15, the spring 17 will be driven downward. At the same time, the upper end of the fixing ring 13 will squeeze the bottom end of the clamping arm 14 downward. Similarly, since the bottom end of the clamping arm 14 is rotatably connected to the fixing cylinder 12 through the insertion rod 141, the clamping arm 14 will be in a contracted state through the lever principle, and the overload limiter 103 will be firmly installed.

[0062] The above are only preferred embodiments of the present invention and do not constitute any form of limitation to the present invention. Any ordinary technician in this industry can smoothly implement the present invention as shown in the drawings and above. However, any equivalent changes, modifications and evolutions made by technicians familiar with this profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A device for adjusting the position of an overload structure of a fixed wire rope hoist, comprising a hoist frame, characterized in that: Also includes: A lifting drive member (1) is fixedly mounted on one side of the hoist frame; A bottom plate (2) is fixedly mounted on the bottom of the hoist frame; A connecting rod (3) fixedly connects the base plate (2) and the side of the hoist frame; A limit box (4) is installed on one side of the hoist frame; Fixed plates (5) are arranged on both sides of the hoist frame; A crossbeam (105) is fixedly connected to the upper end of the hoist frame; The pulley hanging plate (106) is fixedly connected to the crossbeam (105). A pulley suspension plate (101) is fixedly connected to the pulley hanging plate (106); A pulley (102) is fixedly connected to the bottom of the pulley suspension plate (101); A thickened plate (104) fixedly connected to the pulley suspension plate (101); An overload limiter (103) is embedded in a mounting hole assembly in the thickened plate (104).

2. The overload structure position adjustment device for a fixed wire rope hoist according to claim 1, characterized in that: The mounting hole assembly comprises: a base (11), a fixing ring (13) arranged on the base (11), and a fixing cylinder (12) arranged outside the fixing ring (13).

3. The overload structure position adjustment device for a fixed wire rope hoist according to claim 2, characterized in that: A spring (17) is provided in the base (11), and the spring (17) is connected to the bottom of the fixing ring (13).

4. The overload structure position adjustment device for a fixed wire rope hoist according to claim 3, characterized in that: A rotating screw (15) is provided in the spring (17), and the rotating screw (15) passes through the base (11) and the fixing ring (13) and is connected to a nut (16), and the nut (16) is fixedly connected to the top end of the fixing ring (13).

5. The overload structure position adjustment device for a fixed wire rope hoist according to claim 4, characterized in that: A clamping arm (14) is provided on the fixing ring (13), and the bottom end of the clamping arm (14) is rotatably connected to the fixing cylinder (12) via an inserting rod (141), and a groove corresponding to the clamping arm (14) is provided on the fixing cylinder (12).

6. The overload structure position adjustment device for a fixed wire rope hoist according to claim 5, characterized in that: The clamping arms (14) are arranged in a circumferential array on the fixing ring (13).

7. The overload structure position adjustment device for a fixed wire rope hoist according to claim 6, characterized in that: The thickened plate (104) is provided with a card (107) that is engaged with a corresponding groove on the base (11).

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