Loading device for test

Abstract

The utility model relates to the field of spaceflight, in particular to a loading device for a test. The loading device comprises a base and a connecting device, a main body of the loading device is of a cone structure, and a connecting groove is formed in the side face of the connecting device. A hydraulic cylinder of the hydraulic loading device is connected with the bottom of the connecting device; the lower frame and the hydraulic loading device are mounted on the base; and the hydraulic loading device is arranged in the lower frame. According to the utility model, load tests under various working conditions can be simulated, automatic loading is realized, and calibration procedures are simplified.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of spaceflight, especially relates to a loading device for test. BACKGROUND

[0002] The lifting device is a device for carrying and lifting heavy objects, and is widely used in industrial production, construction, logistics transportation and other fields. At present, due to the limitation of workshop height, the loading test of large lifting equipment generally needs to be specially set up loading pit, and in addition, hundreds of tons of counterweight and large tonnage cranes are needed to complete the operation, which occupies a large area, needs a large number of personnel, and the operation process is complicated, which has hidden dangers to the safety of the operators. The automatic loading device simplifies the test steps, realizes precise loading, reduces the demand for site and personnel, and improves the work efficiency.

[0003] The sensor is installed in the large lifting equipment, and the load value can be directly obtained, and the accuracy directly relates to the reliability and safety of the equipment, so it needs to be calibrated regularly. The conventional calibration method is weight calibration, the sensor value is corrected by lifting the calibration weight, and the process needs to be loaded and adjusted manually for many times, which is large in workload and complicated in process. UTILITY MODEL CONTENTS

[0004] The technical problem to be solved by the utility model is to provide a loading device for test, which can simulate load test under various working conditions, realize automatic loading, and simplify the calibration procedure.

[0005] The utility model provides a loading device for test, which comprises:

[0006] A base,

[0007] A connecting device, which is a vertebral body structure and is provided with a connecting groove on the side surface;

[0008] The hydraulic cylinder of the hydraulic loading device is connected with the bottom of the connecting device;

[0009] The lower frame and the hydraulic loading device are installed on the base;

[0010] The hydraulic loading device is arranged in the lower frame;

[0011] When the test is not carried out, the upper frame is arranged on the upper part of the lower frame, and the top cover is arranged on the upper part of the upper frame;

[0012] When the loading test of the lifting equipment is carried out, the upper frame is arranged on the upper part of the lower frame and is connected;

[0013] When the loading test of the bearing frame is carried out, the bearing frame is arranged between the top cover and the lower frame, and the top cover is connected with the connecting device;

[0014] When the load test is carried out on the force bearing frame and the clamp, the force bearing frame is arranged between the top cover and the lower frame, the clamp is arranged between the top cover and the connecting device, the upper part of the clamp is connected with the top cover, and the lower part of the clamp is connected with the connecting device.

[0015] When the load test is carried out on the lifting device, the force bearing frame and the clamp as a whole, the lower end surface of the force bearing frame is connected with the lower frame, and the upper end surface of the force bearing frame is connected with the lifting device.

[0016] In an embodiment of the utility model, the outer diameter of the base and the lower frame is consistent with the size of the flange of the lifting device, and the base and the lower frame are used for bearing the lifting device and the force bearing frame.

[0017] In an embodiment of the utility model, the base, the upper frame, the lower frame and the top cover form a cage type structure.

[0018] In an embodiment of the utility model, the upper surface of the connecting device is provided with an ear plate.

[0019] In an embodiment of the utility model, the connecting groove is a square groove.

[0020] In an embodiment of the utility model, the maximum load applied by the hydraulic loading device is 180 tons.

[0021] Compared with the prior art, the loading device for test has the following beneficial effects:

[0022] (1) a set of structures are used to simulate multiple working conditions, the test device is simplified, the test risk is reduced, and certain economic benefits are obtained;

[0023] (2) the device has compact structure, large load, high precision and convenient operation, and simultaneously has load calibration function, so that the program can be simplified and the work efficiency can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 Fig. 1 shows a schematic diagram of the composition of the loading device;

[0025] Figure 2 Fig. 5 shows a schematic diagram of the implementation of the overall load test of the lifting device assembly;

[0026] Figure 3 Fig. 6 shows a schematic diagram of the implementation of the load test of the lifting device;

[0027] Figure 4 Fig. 7 shows a schematic diagram of the implementation of the load test of the force bearing frame;

[0028] Figure 5 Fig. 8 shows a schematic diagram of the implementation of the load test of the force bearing frame and the clamp;

[0029] Figure 1In the figure, 1 - base; 2 - connecting device; 3 - upper frame; 4 - lower frame; 5 - top cover; 6 - hydraulic loading device; 7 - lifting equipment, 8 - force bearing frame, 9 - clamp, 10 - adapter. DETAILED DESCRIPTION

[0030] In order to further understand the present application, the embodiments of the present application will be described below in conjunction with examples, but it should be understood that these descriptions are only for further illustrating the features and advantages of the present application, and are not limitations of the present application.

[0031] The loading device of the present application is suitable for tension test on the overall equipment composed of lifting equipment, clamp and force bearing frame, and can also be used for tension test on the lifting equipment or clamp respectively, and can also be used for pressure test on the force bearing frame, and is suitable for various test scenes.

[0032] The embodiment of the present application discloses a loading device for test, as shown in the figure, comprising: Figure 1 A base 1, a connecting device 2, an upper frame 3, a lower frame 4, a top cover 5, a hydraulic loading device 6;

[0033] The base 1, the upper frame 3, the lower frame 4 and the top cover 5 form a cage structure;

[0034] The lower frame 4 and the hydraulic loading device 6 are installed on the base 1;

[0035] When no test is performed, the upper frame 3 is located at the upper part of the lower frame 4, and the top cover 5 is arranged at the upper part of the upper frame 3;

[0036] The connecting device 2 has a vertebral body structure, and a connecting groove is arranged on the side surface, wherein the connecting groove is a square groove; when the clamp 9 is tested for tension, the clamp 9 is connected with the connecting device 2 through the square groove;

[0037] An ear plate is arranged on the upper surface of the connecting device 2, and the lifting equipment 7 is connected with the ear plate when the lifting equipment 7 is tested;

[0038] The hydraulic cylinder of the hydraulic loading device 6 is connected with the bottom of the connecting device 2;

[0039] The hydraulic loading device 6 is arranged in the lower frame 4;

[0040] The hydraulic loading device 6 can display the corresponding output load under each pressure value by calibrating the system pressure value, and the overall and single-component loading test on the lifting equipment assembly can be performed through the above equipment, and accurate checking can be realized.

[0041] The maximum load applied by the hydraulic loading device is 180 tons.

[0042] The outer diameters of the base 1 and the lower frame 4 are consistent with the dimensions of the connecting flange of the lifting equipment, and are used to support the lifting equipment and its load-bearing frame.

[0043] like Figure 2 As shown, when conducting a tensile load test on the integrated equipment consisting of the lifting device, clamp, and load-bearing frame, the upper frame 3 and top cover 5 are removed. The lower end face of the load-bearing frame 8 is connected to the lower frame 4, and the upper end face of the load-bearing frame 8 is connected to the lifting device 7. After the clamp 9 is connected to the side pin of the connecting device 2, the extension of the hydraulic cylinder of the hydraulic loading device is adjusted until it is connected to the connecting device 2 via a trunnion. By adjusting the pressure of the hydraulic loading device 6, tensile or pushing loads are applied to each component to simulate various stress conditions of the lifting device components.

[0044] like Figure 3 As shown, when performing a loading test on the lifting device 7, the top cover 5 is removed, the lower end face of the lifting device 7 is connected to the upper frame 3, and the interior of the lifting device 7 is connected to the connecting device 2 through the ear seat. The pressure is adjusted by the hydraulic loading device 6 to apply tensile load to the lifting device 7, which can simulate various adverse working conditions.

[0045] like Figure 4 As shown, when performing a loading test on the load-bearing frame 8, the upper frame 3 is removed, the upper surface of the load-bearing frame 8 is connected to the top cover 5, the lower end face of the load-bearing frame 8 is connected to the lower frame 4, and the top cover 5 and the connecting device 2 are connected through the shaft via the adapter 10. By adjusting the pressure of the hydraulic loading device 6, a compressive load is applied to the load-bearing frame 8, which can simulate various adverse working conditions.

[0046] like Figure 5 As shown, when performing a loading test on the load-bearing frame 8 and the clamp 9, the upper frame 3 is removed and the load-bearing frame 8 is installed. The clamp 9 is installed between the top cover 5 and the connecting device 2. The clamp 9 is connected to the top cover 5 by a pin on the top and to the connecting device 2 by a conical pin on the bottom. By adjusting the pressure of the hydraulic loading device 6, a compressive load is applied to the load-bearing frame 8 and a tensile load is applied to the clamp 9, which can simulate various adverse working conditions.

[0047] The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

[0048] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A test loading device characterized by comprising: The utility model relates to a loading test device for lifting equipment, which comprises a base, a connecting device with a body in the shape of a pyramid and a connecting groove on the side, a hydraulic cylinder of a hydraulic loading device connected to the bottom of the connecting device, a lower frame and the hydraulic loading device installed on the base, the hydraulic loading device arranged inside the lower frame, an upper frame placed on the upper part of the lower frame and a top cover arranged on the upper part of the upper frame when no test is conducted, the upper frame connected to the upper part of the lower frame when a loading test is conducted on the lifting equipment, a load-bearing frame placed between the top cover and the lower frame and the top cover connected to the connecting device when a loading test is conducted on the load-bearing frame, a clamp installed between the top cover and the connecting device when a loading test is conducted on the load-bearing frame and the clamp, the upper frame connected to the top cover and the lower part connected to the connecting device, the load-bearing frame connected to the lower frame at the lower end and the lifting equipment connected to the load-bearing frame at the upper end when a loading test is conducted on the lifting equipment, the load-bearing frame and the clamp as a whole. The outer diameter of the base and the lower frame is consistent with the size of the flange of the lifting equipment, which is used to bear the lifting equipment and the load-bearing frame. The base, the upper frame, the lower frame and the top cover form a cage structure. The upper surface of the connecting device is provided with an ear plate. The connecting groove is a square groove. The maximum load applied by the hydraulic loading device is 180 tons. ​ ​ ​ ​ ​ 2. The loading device for testing according to claim 1, characterized in that ​ 3. The loading device for testing according to claim 1, wherein ​ 4. The loading device for testing according to claim 1, wherein ​ 5. The loading device for testing according to claim 1, wherein ​ 6. The loading device for testing according to claim 1, wherein ​

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