A hoist counterweight frame structure

Abstract

The utility model relates to the technical field of elevator, especially a hoist counterweight block frame structure, including horizontal plate and side plate, is provided with recess in the middle of horizontal plate's end, the both ends of side plate are fixedly connected with the end of horizontal plate respectively, the wheel groove is seted up on the side plate, the guide wheel is seted up in the middle part of wheel groove, the vertical projection of guide wheel in the inside of side plate on horizontal plate is located in recess range, is provided with the concave notch in the both sides of horizontal plate both ends, is provided with fixed plate between horizontal plate, the both ends of fixed plate partially extend and form the convex part, the convex part is matched and is connected in the inside of concave notch of horizontal plate, the convex part is fixedly connected with horizontal plate, and the fixed plate end portion of convex part side abuts at between horizontal plate.

Description

Technical Field

[0001] This utility model relates to the field of hoist technology, and in particular to a hoist counterweight frame structure. Background Technology

[0002] In existing technology, the frame of the counterweight block of a traditional hoist is formed by welding metal plates. Two guide wheels with V-shaped grooves are embedded on both sides of the frame. In actual use, the guide wheels mate with the slide rails. Therefore, when the guide wheels fail and need replacement, spatial interference prevents disassembly and reassembly of the guide wheels, requiring frame cutting and repeated welding. This ultimately leads to metal fatigue of the frame, shortened lifespan, and reduced load-bearing capacity. Furthermore, replacing the guide wheels is time-consuming, causing significant equipment downtime and affecting processing progress. Utility Model Content

[0003] To address the aforementioned technical deficiencies, this invention provides a counterweight frame structure for a hoist, which is stable, robust, and facilitates efficient replacement of guide wheels.

[0004] This utility model discloses a counterweight frame structure for a hoist, including a horizontal plate and side plates. A groove is provided in the middle of the end of the horizontal plate, and the groove extends through the thickness direction of the horizontal plate. The two ends of the side plates are respectively fixedly connected to the ends of the horizontal plate by bolts. A wheel groove is opened on the side plate, and a guide wheel is provided in the middle of the wheel groove. The vertical projection of the guide wheel on the inner side of the side plate onto the horizontal plate is located within the groove. An inward recess is provided on one or both sides of the two ends of the horizontal plate. A fixing plate is provided between the horizontal plates. The two ends of the fixing plate extend locally to form protrusions. The protrusions are engaged with the inward recesses of the horizontal plate. The protrusions are fixedly connected to the horizontal plate by bolts. The ends of the fixing plates on the sides of the protrusions abut against the horizontal plates. Chain connecting seats are provided at both ends of one of the horizontal plates.

[0005] The two sides of each end of the side plate are fixedly connected to the two sides of the groove at the end of the horizontal plate by bolts.

[0006] The guide wheel has a V-groove on its circumferential sidewall and a screw hole on its axle. The two ends of the axle are fixed to the sides of the groove by bolts.

[0007] Multiple screw holes are spaced apart on both sides of the side, and multiple screw holes are also provided on the side wall of the fixing plate opposite to the side. The side plate and the fixing plate are fixedly connected by the cooperation of the support bolts and the two screw holes.

[0008] The present invention provides a counterweight frame structure for a hoist, which forms a frame structure through a horizontal plate and a fixed plate, and uses a side plate to install guide wheels. The guide wheels can be quickly disassembled and assembled by using the groove at the end of the horizontal plate, which greatly improves the efficiency of replacing guide wheels, while ensuring the strength and stability of the entire frame. Attached Figure Description

[0009] Figure 1 This is a front view of the structure of this utility model;

[0010] Figure 2 for Figure 1 A magnified view of a portion of the image;

[0011] Figure 3 This is a top view of the structure of this utility model;

[0012] Figure 4 for Figure 3 A magnified view of a portion of the image;

[0013] Figure 5 This is a side view of the structure of this utility model;

[0014] Figure 6 This is a three-dimensional structural view of the present invention;

[0015] Figure 7 This is a perspective view of the present invention without the guide wheel installed. Detailed Implementation

[0016] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0017] Example 1:

[0018] like Figures 1-7 As shown, this utility model discloses a counterweight frame structure for a hoist, including a horizontal plate 1 and a side plate 3. A groove 11 is provided in the middle of the end of the horizontal plate 1, and the groove 11 extends through the thickness direction of the horizontal plate 1. The two ends of the side plate 3 are respectively fixedly connected to the end of the horizontal plate 1 by bolts. A wheel groove 10 is opened on the side plate 3, and a guide wheel 4 is provided in the middle of the wheel groove 10. The vertical projection of the guide wheel 4 on the horizontal plate 1 on the inner side of the side plate 3 is located within the groove 11. Inward recesses 8 are provided on both sides of the two ends of the horizontal plate 1. A fixing plate 2 is provided between the horizontal plates 1. The two ends of the fixing plate 2 are partially extended to form protrusions 7. The protrusions 7 are engaged with the inward recesses 8 of the horizontal plate 1. The protrusions 7 are fixedly connected to the horizontal plate 1 by bolts. The ends of the fixing plate 2 on the side of the protrusions 7 abut against the horizontal plates 1. A chain connecting seat 5 is provided at both ends of one of the horizontal plates 1.

[0019] A rectangular frame structure is formed by the cooperation of horizontal plates 1 and fixed plates 2. Recessed notches 8 are provided on both sides of both ends of the horizontal plate 1, and two fixed plates 2 are provided at each end of the horizontal plate 1. The ends of the fixed plates 2 partially extend to form protrusions 7, which mate with the recessed notches 8 on the horizontal plate 1. Specifically, holes are provided in the protrusions 7 of the fixed plates 2, and screw holes are provided at the bottom of the corresponding recessed notches 8, allowing for secure connection with bolts. The ends of the fixed plates 2 abut against the horizontal plates 1, achieving high strength and stability for the frame structure. The four fixed plates 2 and two horizontal plates 1 form a stable rectangular frame structure, which can accommodate counterweights. To fix the guide wheels 4, side plates 3 are provided at both ends of the horizontal plates 1, with wheel grooves 10 formed on the side plates 3. The axle 6 of the guide wheels 4 is fixed to the horizontal plates 1, with a portion of the guide wheels 4 located within the wheel grooves 10. Since the outer side of the side plate 3 is equipped with a slide rail, and the guide wheel 4 cooperates with the slide rail, the guide wheel 4 is restricted by the slide rail and cannot move to the side. Therefore, to facilitate the disassembly of the guide wheel 4, a groove 11 is provided at the end of the horizontal plate 1, and when the guide wheel 4 is projected perpendicularly onto the horizontal plate 1, the entire projection is within the groove 11. That is, the width of the groove 11 is greater than the width of the guide wheel 4, and the depth of the groove 11 is greater than the distance between the end of the guide wheel 4 on the inner side of the side plate 3 and the inner side of the side plate 3. In actual use, after removing the bolts at both ends of the side plate 3, the side plate 3 and the guide wheel 4 can be moved together along the slide rail, thereby achieving relative displacement between the side plate 3 and the horizontal plate 1. At the same time, the guide wheel 4 passes through the groove 11, realizing the separation between the side plate 3, the guide wheel 4 and the horizontal plate 1, and then the guide wheel 4 can be disassembled and replaced. There is no need to break the horizontal plate 1 and the fixing plate 2. After the guide wheel 4 is replaced, the side plate 3 with the replaced guide wheel 4 can be inserted into the end of the horizontal plate 1 from below and fixed with bolts. This structure allows for quick replacement of guide rollers 4, making operation simple and convenient and reducing hoist downtime. The chain connector 5 is used to connect the chain, which drives the counterweight and frame to rise and fall, ensuring stable operation of the hoist.

[0020] Each end of the side plate 3 is fixedly connected to both sides of the groove 11 at the end of the horizontal plate 1 by bolts. Since the end of the horizontal plate 1 has a groove 11, the two sides of the groove 11 at the end of the horizontal plate 1 abut against the side plate 3. The bolt connection at this part can fix the side plate 3 to the horizontal plate 1. Since the counterweight is set in the frame structure formed by the horizontal plate 1 and the fixed plate 2, the side plate 3 and the guide wheel 4 only play a stabilizing role, so they do not need to bear excessive tensile force. The bolt connection to the horizontal plate 1 on both sides of the groove 11 has sufficient connection strength.

[0021] The guide wheel 4 has a V-groove on its circumferential sidewall, and a threaded hole on its axle 6. Both ends of the axle 6 are bolted to the sides of the groove 10. The guide wheel 4, in conjunction with the slide rail, restricts the left-right and front-back positions of the entire frame during lifting. Since the slide rail abuts against the guide wheel 4 and the gap between them is small, its left-right position is limited. To prevent front-back displacement, the guide wheel 4 has a V-groove, and the slide rail also uses a V-shaped structure; their combination effectively restricts front-back displacement. The guide wheel 4 can only move along the slide rail, resulting in high stability during the lifting of the counterweight. Since the guide wheel 4 and its axle 6 are rotatably connected by a bearing, it is only necessary to fix the axle 6 to the side plate 3. For ease of installation, a countersunk hole can be made in the axle 6, and it can be bolted to the side plate 3.

[0022] Multiple screw holes are spaced apart on both sides of the side plate 3, and corresponding screw holes are also provided on the side wall of the fixed plate 2 opposite to the side plate 3. The support bolt 9 is used to connect the side plate 3 and the fixed plate 2 by engaging with two screw holes. Since the side plate 3 is relatively long and the side is only fixed at both ends, the guide wheel 4 needs to bear relatively large pressure. Screw holes can be opened at the corresponding positions on the side plate 3 and the side wall of the fixed plate 2, and bolts are used to connect with two screw holes. The support bolt 9 is used to support the side wall of the side plate 3 and the fixed plate 2, so as to prevent the side plate 3 from bending significantly and improve the stability of the side plate 3 and the guide wheel 4 in supporting the left and right sides of the frame.

[0023] In the description of this application, 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," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application. 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 with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0024] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" 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; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the interaction relationship between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0025] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simplification, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A counterweight frame structure for a hoist, characterized in that: The device includes a horizontal plate and side plates. A groove is provided in the middle of the end of the horizontal plate, and the groove extends through the thickness direction of the horizontal plate. The two ends of the side plates are respectively fixedly connected to the ends of the horizontal plate by bolts. A wheel groove is opened on the side plate, and a guide wheel is provided in the middle of the wheel groove. The vertical projection of the guide wheel on the horizontal plate is located within the groove. An inward notch is provided on one or both sides of the ends of the horizontal plate. A fixing plate is provided between the horizontal plates. The two ends of the fixing plate extend locally to form protrusions. The protrusions fit into the inward notch of the horizontal plate and are fixedly connected to the horizontal plate by bolts. The end of the fixing plate on the side of the protrusion abuts against the horizontal plates. A chain connecting seat is provided at both ends of one of the horizontal plates.

2. The counterweight frame structure for a hoist according to claim 1, characterized in that: The two sides of each end of the side plate are fixedly connected to the two sides of the groove at the end of the horizontal plate by bolts.

3. The counterweight frame structure for a hoist according to claim 1, characterized in that: The guide wheel has a V-groove on its circumferential sidewall and a screw hole on its axle. The two ends of the axle are fixed to the sides of the groove by bolts.

4. The counterweight frame structure for a hoist according to claim 1, characterized in that: Multiple screw holes are spaced apart on both sides of the side, and multiple screw holes are also provided on the side wall of the fixing plate opposite to the side. The side plate and the fixing plate are fixedly connected by the cooperation of the support bolts and the two screw holes.

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