Load test bench

Abstract

The utility model relates to the technical field of cranes, in particular to a load test bed. The load test bench comprises a base, a connecting mechanism and a hoisting mechanism, the base is provided with a bearing plane used for bearing a balancing weight, and the hoisting mechanism is used for hoisting of a crane; the hoisting mechanism is arranged above the base, and the hoisting mechanism is connected with the base through the connecting mechanism; the base is detachably connected with the connecting mechanism, and the hoisting mechanism is detachably connected with the connecting mechanism. The utility model provides a load test bench to alleviate the technical problem that a load test bench in the prior art is not easy to transfer and is not suitable for multi-site application.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, in particular to a load test bench. Background Art

[0002] There are many bridge cranes installed in nuclear power and nuclear chemical production plants. After the cranes are installed, they must be put into use after load testing. For heavy lifting equipment, special load test tools need to be designed according to the on-site installation dimensions, reserved hole sizes, transfer channels, etc., and the relationship between the hanger, balance beam and crane should be considered at the same time to design the related structural components.

[0003] However, in the prior art, the connection form of the load test bench makes it difficult to transfer the load test bench, which is not conducive to multi-site application.

[0004] Therefore, the present application provides a new load test bench to address the above problems. Utility Model Content

[0005] The utility model aims to provide a load test bench to at least alleviate the technical problem in the prior art that the load test bench is not easy to transfer, thus being disadvantageous for multi-site application.

[0006] Based on the above purpose, the utility model provides a load test bench, which includes a base, a connecting mechanism and a lifting mechanism. The base is provided with a bearing plane for bearing a counterweight block, and the lifting mechanism is used for crane lifting;

[0007] The hoisting mechanism is arranged above the base, and the hoisting mechanism is connected to the base through the connecting mechanism;

[0008] Wherein, the base is detachably connected to the connecting mechanism, and the hoisting mechanism is detachably connected to the connecting mechanism.

[0009] Furthermore, a plurality of the connecting mechanisms are provided, and the plurality of the connecting mechanisms are evenly distributed between the base and the hoisting mechanism.

[0010] Furthermore, the base comprises a support seat and a plurality of transverse beams arranged on the support seat, and the upper surfaces of the plurality of transverse beams are flush to form the bearing plane together;

[0011] The hoisting mechanism is connected to the supporting seat through the connecting mechanism.

[0012] Furthermore, the transverse support beam is detachably connected to the support seat.

[0013] Furthermore, two support seats are provided, and the two support seats are arranged in parallel. Both ends of the transverse support beam are respectively connected to the two support seats, and the plurality of transverse support beams are evenly distributed along the length direction of the support seat.

[0014] Furthermore, the hoisting mechanism comprises a hoisting seat and a hoisting lug arranged in the hoisting seat, and the hoisting lug is used for crane hoisting;

[0015] The hanging seat is arranged above the base, and the hanging seat is connected to the supporting seat through the connecting mechanism.

[0016] Furthermore, the hanging seat includes a top plate and two side plates respectively arranged on both sides of the top plate, and a reinforcing plate is connected between the two side plates, and the reinforcing plate is arranged below the top plate;

[0017] Wherein, the top plate is provided with a through hole, and two vertical plates are arranged between the top plate and the reinforcing plate, and the two vertical plates are respectively arranged on both sides of the through hole to jointly form a channel connected with the through hole;

[0018] The lifting lug is arranged in the channel, and two ends of the lifting lug are respectively connected to the two vertical plates.

[0019] Further, the connection mechanism comprises a connection arm, and the support seat is connected to a connection seat;

[0020] One end of the connecting arm is detachably connected to the connecting seat via a first pin shaft, and the other end is detachably connected to the side plate via a second pin shaft.

[0021] Further, the connecting seat is provided with a first connecting hole, the two ends of the connecting arm are respectively provided with a second connecting hole and a third connecting hole, and the side plate is provided with a fourth connecting hole;

[0022] The first pin shaft passes through the first connecting hole and the second connecting hole respectively, so that one end of the connecting arm is detachably connected to the connecting seat through the first pin shaft; the second pin shaft passes through the third connecting hole and the fourth connecting hole respectively, so that the other end of the connecting arm is detachably connected to the side plate through the second pin shaft.

[0023] Furthermore, the connecting arm includes an arm body and a web, the arm body includes a first arm plate and a second arm plate arranged in parallel, a connecting plate is connected between the first arm plate and the second arm plate, the web is connected between the first arm plate and the second arm plate, and the web is arranged perpendicular to the connecting plate.

[0024] By adopting the above technical solution, the load test bench of the utility model has at least the following beneficial effects:

[0025] When the load test bench is used, the base, connecting mechanism, lifting mechanism and other parts are first transported to the pre-assembly site in the form of loose parts; then the base is placed on a horizontal ground, and the counterweights are lifted one by one onto the bearing surface of the base. After the lifting is completed, the connecting mechanism is connected to the base, and then the lifting mechanism is lifted above the counterweight, and the lifting mechanism is connected to the connecting mechanism, completing the assembly of the load test bench.

[0026] After the load test bench is used, the load test bench can be disassembled. First, the lifting mechanism is removed from the connecting mechanism, and then the connecting mechanism is removed from the base to expose the counterweight blocks. Then the counterweight blocks are lifted off the base one by one, thereby completing the disassembly of the base, connecting mechanism, lifting mechanism and other components.

[0027] In summary, the load test bench is a detachable connection form. The load test bench is transported to the pre-assembly site in the form of loose parts and then assembled, so as to facilitate the static load, dynamic load and other tests at this site. After the test is completed, the load test bench is disassembled in sequence. After the disassembly is completed, each loose part can be transported to the next load test site. In other words, the load test bench is convenient and detachable during use, easy to transfer to multiple places, and easy to combine to realize multi-site application to carry out load tests, which alleviates the technical problem that the load test bench in the prior art is not easy to transfer, which is not conducive to multi-site application. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 A schematic diagram of the structure of a load test bench provided in an embodiment of the utility model;

[0030] Figure 2 for Figure 1 A magnified view of the local structure of the medium load test bench;

[0031] Figure 3 A schematic diagram of the structure of the connecting arm of the load test bench provided by the embodiment of the utility model;

[0032] Figure 4 A schematic diagram of the structure of a lifting base of a load test bench provided by an embodiment of the utility model;

[0033] Figure 5This is a schematic structural diagram of a load test bench provided in an embodiment of the utility model (a counterweight is provided on the base).

[0034] Reference numerals:

[0035] 1- base; 11- support base; 12- cross beam;

[0036] 2-connecting mechanism; 21-connecting arm; 211-second connecting hole; 212-third connecting hole; 213-web; 214-first arm plate; 215-second arm plate; 216-connecting plate; 22-connecting seat; 23-first pin shaft; 24-second pin shaft;

[0037] 3-lifting mechanism; 31-lifting ear; 32-top plate; 33-side plate; 331-fourth connecting hole; 34-reinforcement plate; 35-vertical plate;

[0038] 4-Counterweight. DETAILED DESCRIPTION

[0039] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0040] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] Example

[0043] See also Figure 1 The present embodiment provides a load test bench, which includes a base 1, a connecting mechanism 2 and a lifting mechanism 3. The base 1 is provided with a bearing plane for bearing a counterweight block 4, and the lifting mechanism 3 is used for crane lifting; the lifting mechanism 3 is arranged above the base 1, and the lifting mechanism 3 is connected to the base 1 through the connecting mechanism 2; wherein the base 1 and the connecting mechanism 2 are detachably connected, and the lifting mechanism 3 and the connecting mechanism 2 are detachably connected.

[0044] Please note that, see Figure 5 When the load test bench is used, first, the base 1, the connecting mechanism 2, the lifting mechanism 3 and other parts are transported to the pre-assembly site in the form of loose parts; then the base 1 is placed on the horizontal ground, and the counterweight blocks 4 are lifted one by one to the bearing plane of the base 1. After the lifting is completed, the connecting mechanism 2 is connected to the base 1, and then the lifting mechanism 3 is lifted to the top of the counterweight block 4, and the lifting mechanism 3 is connected to the connecting mechanism 2 to complete the assembly of the load test bench.

[0045] After the use of the load test bench, the load test bench can be disassembled. First, the lifting mechanism 3 is removed from the connecting mechanism 2, and then the connecting mechanism 2 is removed from the base 1 to expose the counterweight 4. Then the counterweight 4 is lifted off the base 1 one by one, thereby completing the disassembly of the base 1, the connecting mechanism 2, the lifting mechanism 3 and other components.

[0046] In summary, the load test bench is a detachable connection form. The load test bench is transported to the pre-assembly site in the form of loose parts and then assembled, so as to facilitate the static load, dynamic load and other tests at this site. After the test is completed, the load test bench is disassembled in sequence. After the disassembly is completed, each loose part can be transported to the next load test site. In other words, the load test bench is convenient and detachable during use, easy to transfer to multiple places, and easy to combine to realize multi-site application to carry out load tests, which alleviates the technical problem that the load test bench in the prior art is not easy to transfer, which is not conducive to multi-site application.

[0047] Preferably, see Figure 1 In this embodiment, a plurality of connecting mechanisms 2 are provided, and the plurality of connecting mechanisms 2 are evenly distributed between the base 1 and the lifting mechanism 3 .

[0048] For example, the connection mechanism 2 is provided with two, three, four or five, etc. Preferably, see Figure 1 In this embodiment, four connecting mechanisms 2 are provided, and the four connecting mechanisms 2 are respectively provided at four corners of the base 1 and the lifting mechanism 3 .

[0049] Among them, multiple connecting mechanisms 2 are evenly distributed between the base 1 and the lifting mechanism 3, so that the base 1 and the lifting mechanism 3 form an overall stable structure, effectively ensuring the stability of the lifting mechanism 3, so that after the counterweight block 4 is loaded on the base 1, it is effectively guaranteed that the load test bench is evenly loaded and stressed.

[0050] Preferably, see Figure 1 and Figure 2 In this embodiment, the base 1 includes a support seat 11 and a plurality of transverse beams 12 arranged on the support seat 11. The upper surfaces of the plurality of transverse beams are flush and together form a bearing plane; the lifting mechanism 3 is connected to the support seat 11 through the connecting mechanism 2.

[0051] That is to say, the main body is the support seat 11, and the support seat 11 is arranged at the bottom of the test bench. Preferably, the support seat 11 is an internally reinforced structure to provide a stable supporting force for the test bench.

[0052] Optionally, the transverse beam 12 is an H-shaped steel reinforced structure.

[0053] Preferably, in this embodiment, the transverse beam 12 is detachably connected to the support seat 11 .

[0054] For example, the cross beam 12 is connected to the support seat 11 by means of snap connection, buckle connection or screw connection, etc. Preferably, referring to the figure, in this embodiment, the cross beam 12 is connected to the support seat 11 by screws and nuts, which can be easily disassembled and transferred to the test site.

[0055] Preferably, see Figure 1 In this embodiment, two support seats 11 are provided, and the two support seats 11 are arranged in parallel. Both ends of the transverse support beam 12 are respectively connected to the two support seats 11, and the multiple transverse support beams 12 are evenly distributed along the length direction of the support seat 11.

[0056] Optionally, two, three, four or five cross beams 12 are provided. Preferably, in the present embodiment, please refer to the figure, six cross beams 12 are provided, and the upper surfaces of the six cross beams 12 are flush to form a bearing plane for bearing the counterweight block 4 for counterweight test.

[0057] Preferably, see Figure 1 In this embodiment, the lifting mechanism 3 includes a lifting seat and a lifting ear 31 arranged in the lifting seat, and the lifting ear 31 is used for crane lifting; the lifting seat is arranged above the base 1, and the lifting seat is connected to the support seat 11 through the connecting mechanism 2.

[0058] That is to say, the load test bench is hung on the crane through the lifting lugs 31 to carry out the load test.

[0059] Preferably, see Figure 4In this embodiment, the lifting seat includes a top plate 32 and two side plates 33 respectively arranged on both sides of the top plate 32, and a reinforcing plate 34 is connected between the two side plates 33, and the reinforcing plate 34 is arranged below the top plate 32; wherein, the top plate 32 is opened with a through hole, and two vertical plates 35 are arranged between the top plate 32 and the reinforcing plate 34, and the two vertical plates 35 are respectively arranged on both sides of the through hole to jointly form a channel connected to the through hole; the lifting ear 31 is arranged in the channel, and the two ends of the lifting ear 31 are respectively connected to the two vertical plates 35.

[0060] It should be noted that the reinforcing plate 34 is used to stabilize the structural firmness between the two side plates 33 .

[0061] Preferably, see Figure 2 and Figure 3 In this embodiment, the connecting mechanism 2 includes a connecting arm 21, and a connecting seat 22 is connected to the support seat 11; one end of the connecting arm 21 is detachably connected to the connecting seat 22 through a first pin shaft 23, and the other end is detachably connected to the side plate 33 through a second pin shaft 24.

[0062] Optionally, the connecting seat 22 and the supporting seat 11 are detachably connected or fixedly connected. Preferably, in this embodiment, the connecting seat 22 and the supporting seat 11 are welded together, and the connecting seat 22 is arranged on the supporting seat 11 and is located between two adjacent transverse beams 12 .

[0063] Preferably, see Figure 3 In this embodiment, a first connecting hole is provided on the connecting seat 22, a second connecting hole 211 and a third connecting hole 212 are respectively provided at both ends of the connecting arm 21, and a fourth connecting hole 331 is provided on the side plate 33; the first pin shaft 23 passes through the first connecting hole and the second connecting hole 211 respectively, so that one end of the connecting arm 21 is detachably connected to the connecting seat 22 through the first pin shaft 23; the second pin shaft 24 passes through the third connecting hole 212 and the fourth connecting hole 331 respectively, so that the other end of the connecting arm 21 is detachably connected to the side plate 33 through the second pin shaft 24.

[0064] Such an arrangement facilitates the disassembly and installation of the connecting arm 21 and the connecting seat 22 and the hanging seat, respectively, and can ensure the stability of the structure while facilitating the disassembly and transfer of the test site.

[0065] Preferably, see Figure 3 In this embodiment, the connecting arm 21 includes an arm body and a web 213, the arm body includes a first arm plate 214 and a second arm plate 215 arranged in parallel, a connecting plate 216 is connected between the first arm plate 214 and the second arm plate 215, the web 213 is connected between the first arm plate 214 and the second arm plate 215, and the web 213 and the connecting plate 216 are arranged vertically.

[0066] That is to say, the arm body serves as an upper and lower connecting device to connect the base 1 and the lifting mechanism 3 into one, and also serves as a uniform force-bearing device for the bearing capacity of the test bench during the load test. The web 213 is arranged on the arm body to strengthen the arm body structure.

[0067] It should be added that the use process of the load test bench is as follows:

[0068] During use, the required components of the load test bench are transported to the pre-assembly site in the form of loose parts. Since the support seat 11 and the connecting seat 22 have been welded in the early stage, the support seat 11 is placed on the horizontal ground, and the bolt holes of the support seat 11 are aligned with the bolt holes of the cross beam 12 one by one. After the support seat 11 and the cross beam 12 are adjusted, the bolts and nuts are installed and tightened.

[0069] Pass the first pin 23 through the first connecting hole and the second connecting hole 211 respectively, so that one end of the connecting arm 21 is connected to the connecting seat 22 through the first pin 23; hoist the counterweight blocks 4 one by one to the cross beam 12. After the hoisting is completed, hoist the hoisting seat above the counterweight block 4, and pass the second pin 24 through the third connecting hole 212 and the fourth connecting hole 331 respectively, so that the other end of the connecting arm 21 is connected to the side plate 33 through the second pin 24. At this point, the installation of the hoisting seat is completed.

[0070] The lifting lug 31 is arranged in the passage, and the two ends of the lifting lug 31 are respectively connected to the two vertical plates 35 , thereby completing the assembly of the load test bench.

[0071] Check whether the load test bench is deformed or unstable.

[0072] The hook of the crane is inserted into the lifting eye 31. After the trial lifting is completed without any problem, the static load and dynamic load tests are carried out. After the test is completed, the load test bench is disassembled in sequence. After the disassembly is completed, the various components of the load test bench are transported to the next load test site.

[0073] To sum up, the load test bench of this embodiment has good strength. It can be used as a placement device for the load test counterweight 4 and as a load lifting balance hanger. It is convenient and disassembled during use and can be easily transferred to multiple locations to carry out load tests. Especially for load tests on bridge cranes used indoors, it has obvious advantages, occupies a small volume, is easy to operate, effectively improves work efficiency, saves costs, shortens construction period, and can be used as a reference for other projects.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A load test bench, characterized in that: It includes a base, a connecting mechanism and a lifting mechanism, wherein the base is provided with a bearing plane for bearing a counterweight block, and the lifting mechanism is used for crane lifting; The hoisting mechanism is arranged above the base, and the hoisting mechanism is connected to the base through the connecting mechanism; Wherein, the base is detachably connected to the connecting mechanism, and the hoisting mechanism is detachably connected to the connecting mechanism.

2. The load test bench according to claim 1, characterized in that: A plurality of the connecting mechanisms are provided, and the plurality of the connecting mechanisms are evenly distributed between the base and the hoisting mechanism.

3. The load test bench according to claim 1, characterized in that: The base comprises a support seat and a plurality of transverse beams arranged on the support seat, and the upper surfaces of the plurality of transverse beams are flush to form the bearing plane together; The hoisting mechanism is connected to the supporting seat through the connecting mechanism.

4. The load test bench according to claim 3, characterized in that: The transverse support beam is detachably connected to the support seat.

5. The load test bench according to claim 3, characterized in that: The support seats are provided with two, and the two support seats are arranged in parallel. The two ends of the transverse support beam are respectively connected to the two support seats, and the plurality of transverse support beams are evenly distributed along the length direction of the support seat.

6. The load test bench according to claim 3, characterized in that: The hoisting mechanism comprises a hoisting seat and a hoisting lug arranged in the hoisting seat, and the hoisting lug is used for crane hoisting; The hanging seat is arranged above the base, and the hanging seat is connected to the supporting seat through the connecting mechanism.

7. The load test bench according to claim 6, characterized in that: The hanging seat includes a top plate and two side plates respectively arranged on both sides of the top plate, and a reinforcing plate is connected between the two side plates, and the reinforcing plate is arranged below the top plate; Wherein, the top plate is provided with a through hole, and two vertical plates are arranged between the top plate and the reinforcing plate, and the two vertical plates are respectively arranged on both sides of the through hole to jointly form a channel connected with the through hole; The lifting lug is arranged in the channel, and two ends of the lifting lug are respectively connected to the two vertical plates.

8. The load test bench according to claim 7, characterized in that: The connecting mechanism comprises a connecting arm, and the supporting seat is connected to a connecting seat; One end of the connecting arm is detachably connected to the connecting seat via a first pin shaft, and the other end is detachably connected to the side plate via a second pin shaft.

9. The load test bench according to claim 8, characterized in that: The connecting seat is provided with a first connecting hole, the two ends of the connecting arm are respectively provided with a second connecting hole and a third connecting hole, and the side plate is provided with a fourth connecting hole; The first pin shaft passes through the first connecting hole and the second connecting hole respectively, so that one end of the connecting arm is detachably connected to the connecting seat through the first pin shaft; the second pin shaft passes through the third connecting hole and the fourth connecting hole respectively, so that the other end of the connecting arm is detachably connected to the side plate through the second pin shaft.

10. The load test bench according to claim 8, characterized in that: The connecting arm includes an arm body and a web, the arm body includes a first arm plate and a second arm plate arranged in parallel, a connecting plate is connected between the first arm plate and the second arm plate, the web is connected between the first arm plate and the second arm plate, and the web is arranged perpendicular to the connecting plate.

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