Load detection device of beam lifting appliance

Abstract

The utility model belongs to the technical field of lifting appliance detection, and provides a load detection device of a beam lifting appliance, which comprises a base, a top plate, a guide post and a loading plate, the top plate is arranged right above the base in parallel; the guide columns are vertically arranged between the base and the top plate, and the upper ends and the lower ends of the guide columns correspond to the corners of the top plate and the base correspondingly. The loading plate comprises an upper pulling plate and a lower pulling plate, the upper pulling plate and the lower pulling plate are arranged between the base and the top plate in parallel and are in the middle, and the corners of the upper pulling plate and the lower pulling plate are arranged outside the guide columns in a sleeving mode so that the upper pulling plate and the lower pulling plate can synchronously and reversely move in the axial direction of the guide columns. According to the utility model, the carrying pole beam lifting appliance can be effectively tested within a rated tension range, so that an unqualified lifting appliance is abandoned, the carrying pole beam lifting appliance is ensured to run stably in a lifting process, the breakage caused by overload lifting is avoided, a lifted object is ensured not to fall suddenly, and the safety is extremely high.

Description

Technical Field

[0001] The utility model belongs to the technical field of sling detection, and in particular relates to a load detection device for a lifting beam sling. Background Art

[0002] The shoulder pole beam is an essential auxiliary lifting tool for heavy equipment and bridges. In order to ensure the stability and safety of the lifting process, the shoulder pole beam itself must have sufficient strength. If the weight of the lifted equipment or bridge exceeds the load range of the shoulder pole beam, there is a risk of the shoulder pole beam breaking during the lifting process, causing the suspended equipment or bridge to fall, and then causing damage to the objects and workers below.

[0003] Therefore, it is necessary to provide an improved technical solution to the above-mentioned deficiencies in the prior art. Utility Model Content

[0004] The purpose of the utility model is to reduce the probability of breakage of a shoulder beam sling used for heavy equipment or bridges during the lifting process, to avoid the suspended equipment or bridge from falling and causing damage to objects or workers below, and to provide a load detection device for the shoulder beam sling.

[0005] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0006] The lifting mechanism is a pair of fixedly mounted on the lifting platform, and the positioning plate is connected with the mounting plate to form a base, and the positioning plate is connected with the support frame of the lifting post to form a base.

[0007] In the load detection device of the lifting beam sling as described above, preferably, four guide posts are provided, and the four guide posts are distributed at four corresponding corners of the base and the top plate.

[0008] Preferably, a connecting plate is provided in the middle between two adjacent guide columns, and the connecting plate is located between the upper pull plate and the lower pull plate, so that the two adjacent guide columns are connected via the connecting plate.

[0009] Preferably, a support seat is horizontally protruded from the inner top of the connecting plate, and an oil cylinder is vertically provided at the bottom of the support seat;

[0010] The cylinder rod head end of the oil cylinder is fixed to one side of the upper plate surface of the pull-down plate.

[0011] Preferably, a traction column is horizontally protruded from the middle of the side of each of the upper pull plate and the lower pull plate;

[0012] A positioning column is eccentrically provided on the side surface of the top plate.

[0013] Preferably, the outer rotation sleeve of the positioning column is provided with a guide wheel;

[0014] The upper pull plate and the lower pull plate are transmitted via a traction rope.

[0015] Preferably, one end of the traction rope is wound around the outside of the traction column at a lower position, and the other end of the traction rope is passed over the top of the guide wheel and wound around the outside of the traction column at an upper position.

[0016] Preferably, the portion of the traction rope between the upper traction column and the guide wheel is in a vertical state.

[0017] Preferably, tension sensors are provided on the hooks of the upper hook chain and the lower hook chain.

[0018] Beneficial effects: The utility model can effectively test the shoulder pole beam sling within the rated tensile force range, thereby discarding unqualified slings, ensuring the stable operation of the shoulder pole beam sling during the lifting process, avoiding breakage due to overload lifting, and ensuring that the hoisted objects will not fall suddenly, with extremely high safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting part of this application are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention.

[0020] Figure 1 It is a main schematic diagram of the utility model;

[0021] Figure 2 for Figure 1 A side view schematic diagram of

[0022] Figure 3 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 4 It is a cross-sectional schematic diagram of the present utility model.

[0024] In the figure: 1. Base; 2. Top plate; 3. Guide column; 4. Upper pull plate; 5. Lower pull plate; 6. Upper hook chain; 7. Lower hook chain; 8. Connecting plate; 9. Abutment seat; 10. Oil cylinder; 11. Pulling column; 12. Positioning column; 13. Guide wheel; 14. Pull rope. DETAILED DESCRIPTION

[0025] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of the present invention.

[0026] In the description of the present invention, the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention. The terms "connected" and "connected" used in the present invention should be understood in a broad sense. For example, they can be fixed connections or detachable connections; they can be directly connected or indirectly connected through intermediate components. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0027] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0028] Embodiment: This embodiment aims to provide a load detection device for a lifting beam sling, the main function of which is to effectively eliminate inferior shoulder beam slings, ensure that the sling will not be at risk of breaking during the lifting process, and ensure the safety of objects and workers below.

[0029] Reference Figure 1 、 Figure 3 and Figure 4, including: a base 1, a top plate 2, a guide column 3 and a loading plate. The base 1 is placed horizontally on the ground, and the top plate 2 is arranged parallel to the top of the base 1. Four guide columns 3 are arranged between the top plate 2 and the base 1. The four guide columns 3 are distributed at four corresponding corners of the base 1 and the top plate 2, that is, the upper end of the guide column 3 is fixed to the corner of the lower plate surface of the top plate 2, and the lower end is fixed to the corner of the upper surface of the base 1. A connecting plate 8 is fixed in the center between the two adjacent front and rear guide columns 3, and the two adjacent front and rear guide columns 3 are connected by the connecting plate 8. A support seat 9 is horizontally protruded from the inner top of the connecting plate 8, and an oil cylinder 10 is vertically fixed to the bottom of the support seat 9.

[0030] Reference Figure 1-4 The loading plate includes an upper pull plate 4 and a lower pull plate 5. The upper pull plate 4 and the lower pull plate 5 are parallel and centered between the base 1 and the top plate 2, and the four corners of the upper pull plate 4 and the lower pull plate 5 are correspondingly sleeved on the outside of the four guide columns 3, so that the upper pull plate 4 and the lower pull plate 5 can be displaced along the axial direction of the guide columns 3, wherein the upper pull plate 4 is located above the connecting plate 8, and the lower pull plate 5 is located below the connecting plate 8. An upper hook chain 6 is provided in the middle of the lower plate surface of the upper pull plate 4, and the corresponding upper hook chain 6 is provided in the lower pull plate 3. Lower hook chains 7 are provided on both sides of the upper plate surface of the plate 5 so that the upper hook chain 6 and the lower hook chain 7 are in the same plane. The upper and lower plates 4 and 5 are synchronously displaced in opposite directions to make the upper and lower hook chains 6 and 7 perform a tension test on the sling. Specifically, the rod head end of the oil cylinder 10 is fixed to one side of the upper plate surface of the lower plate 5, and the oil cylinder 10 controls the up and down displacement of the lower plate 5. The middle of the left and right sides of the upper and lower plates 4 and 5 are horizontally protruded with traction columns 11. The left and right sides of the top plate 2 are The traction rod 14 of the upper and lower plates 4 is fixed on the outer surface of the traction rod 11 at the bottom, and the other end of the traction rope 14 is passed through the upper and lower plates 4 and fixed on the outer surface of the traction rod 11 at the top, so as to ensure that the part of the traction rope 14 between the traction rod 11 and the guide wheel 13 is in a vertical state, so as to avoid the dispersion of the pulling force exerted by the traction rope 14 on the upper plate 4. Based on this, when the lower plate 5 moves downward, the upper plate 4 will move synchronously with the lower plate 5 in the opposite direction under the transmission action of the traction rope 14, so as to expand the distance between the upper plate 4 and the lower plate 5. On the one hand, it is convenient to place the shoulder beam sling to be tested above the lower plate 5, and on the other hand, it is to realize the tensile test of the shoulder beam sling to detect whether the shoulder beam sling will break within the standard load.

[0031] In this embodiment, tension sensors are provided on the hooks of the upper hook chain 6 and the lower hook chain 7. The tension sensors are not shown in the figure. The tension sensors are used to feedback the accurate tension value applied to the shoulder pole beam, which facilitates the staff to reasonably control the output of the tension and is a routine operation in this field.

[0032] In this embodiment, hinge plates are fixed to the lower plate surface and the upper surface of the upper pull plate 4 so as to flexibly fix the upper hook chain 6 and the lower hook chain 7 through the hinge plates.

[0033] During actual operation, first expand the distance between the upper pull plate 4 and the lower pull plate 5 so that the shoulder pole beam sling to be tested can be placed on the lower pull plate 5, and then gradually reduce the distance between the upper pull plate 4 and the lower pull plate 5 until the hook of the upper hook chain 6 is hooked in the hanging hole at the top of the shoulder pole beam, and then expand the distance between the upper pull plate 4 and the lower pull plate 5 again, and gradually lift the shoulder pole beam through the upper hook chain 6. When the lower pull plate 5 and the shoulder pole beam have a sufficient distance, hook the hook of the lower hook chain 7 in the hanging hole at the bottom of the shoulder pole beam, and finally, continue to expand the distance between the upper pull plate 4 and the lower pull plate 5 to perform a tensile test on the shoulder pole beam. During this period, the staff sets the tensile force applied to the shoulder pole beam to the rated value through the tension sensor, so that the shoulder pole beam remains unchanged for more than 180 seconds. If the shoulder pole beam does not break during the process, the load detection result is qualified, otherwise it is unqualified.

[0034] The detection device provided in this embodiment can effectively test the shoulder pole beam sling within the rated tensile force range, thereby discarding unqualified slings, ensuring the stable operation of the shoulder pole beam sling during the lifting process, avoiding breakage due to overload lifting, and ensuring that the hoisted objects will not fall suddenly, making it safer to use.

[0035] It will be understood that the above description is merely exemplary and the embodiments of the present application do not limit this.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are within the scope of protection of the pending claims of the present invention.

Claims

1. A load detection device for a lifting beam, characterized in that: include: Base, placed horizontally; A top plate, arranged parallel to and directly above the base; A guide column is vertically arranged between the base and the top plate, and the upper and lower ends of the guide column correspond to the corners of the top plate and the base respectively; The loading plate includes: an upper pull plate and a lower pull plate, the upper pull plate and the lower pull plate are both arranged parallel to and centered between the base and the top plate, the edges and corners of the upper pull plate and the lower pull plate are both sleeved on the outside of the guide column, so that the upper pull plate and the lower pull plate can be synchronously displaced in opposite directions along the axial direction of the guide column, an upper hook chain is provided in the middle of the lower plate surface of the upper pull plate, and lower hook chains are provided on both sides of the upper plate surface of the lower pull plate corresponding to the upper hook chain, so that the upper hook chain and the lower hook chain are in the same plane, and the upper hook chain and the lower hook chain are subjected to a tensile test on the sling through the synchronous reverse displacement of the upper pull plate and the lower pull plate.

2. The load detection device for a lifting beam according to claim 1, characterized in that: There are four guide posts, which are distributed at four corresponding corners of the base and the top plate.

3. The load detection device for the lifting beam according to claim 2, characterized in that: A connecting plate is provided in the middle between two adjacent guide columns, and the connecting plate is located between the upper pull plate and the lower pull plate, and the two adjacent guide columns are connected through the connecting plate.

4. The load detection device for a lifting beam according to claim 3, characterized in that: A support seat is horizontally protruded from the inner top of the connecting plate, and an oil cylinder is vertically arranged at the bottom of the support seat; The cylinder rod head end of the oil cylinder is fixed to one side of the upper plate surface of the pull-down plate.

5. The load detection device for a lifting beam according to claim 1, characterized in that: A traction column protrudes horizontally from the middle of the side surfaces of the upper pull plate and the lower pull plate; A positioning column is eccentrically provided on the side surface of the top plate.

6. The load detection device for a lifting beam according to claim 5, characterized in that: The outer rotation sleeve of the positioning column is provided with a guide wheel; The upper pull plate and the lower pull plate are transmitted via a traction rope.

7. The load detection device for a lifting beam according to claim 6, characterized in that: One end of the traction rope is wound around the outside of the traction column at a lower position, and the other end of the traction rope is passed over the top of the guide wheel and wound around the outside of the traction column at an upper position.

8. The load detection device for a lifting beam according to claim 7, characterized in that: The portion of the traction rope between the upper traction column and the guide wheel is in a vertical state.

9. The load detection device for a lifting beam according to claim 1, characterized in that: The hooks of the upper hook chain and the lower hook chain are both provided with tension sensors.

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