Frame tool for vibration impact test of heavy electromechanical equipment

Abstract

The utility model discloses a frame type tool for a vibration impact test of heavy electromechanical equipment, and relates to the field of vibration impact test tools. According to the utility model, the four corners between the top-layer frame and the bottom-layer frame of the upper-layer structure and the lower-layer structure are respectively and vertically connected with a detachable reinforced support connecting structure consisting of an embedded conical shaft pin assembly, a first main pipe and a second main pipe; the embedded conical shaft pin assembly is composed of an outer-circle inner-taper pipe seat, an adjusting main pin shaft screw rod, an adjusting nut, a locking nut and the like. The overall longitudinal and transverse bearing structure is high in strength and good in stability; during up-and-down assembly, the cone shaft and the cone hole are used for positioning assembly, which is accurate and convenient; in the vibration impact detection process, the important part functions in the equipment detection standard are met, the four first main pipes 7 and the four second main pipes 1 are connected through the embedded conical shaft pin assemblies, installation and follow-up disassembly are convenient, repeated use can be achieved, the operation adaptability is high, and time and labor are saved.

Description

Technical Field

[0001] The utility model belongs to the field of vibration impact test tooling, in particular to a frame-type tooling for vibration impact test of heavy electromechanical equipment. Background Art

[0002] According to GB / 21563-2018-Railway Transit Locomotive and Rolling Stock Equipment Shock and Vibration Test Standard and GB / 1094.1-2013 Power Transformer-Product Standard Clauses General Technical Conditions Installation Fixing Condition Standard: Samples of heavy-duty electromechanical equipment must be installed on the test bench directly or through a fixing device in an installation state that simulates the normal use of the actual vehicle for vibration and shock detection tests;

[0003] For example, in the vibration and impact test of heavy transformers used in heavy electromechanical equipment such as offshore wind turbines, rail transit locomotives and vehicles, it is necessary to keep consistent with the operating status of the unit, especially in the connection form and stiffness requirements; the connection forms include top hanging type, ground lying type, etc.; the specific vibration and impact test adopts the following methods: Figure 1-2 The frame-type fixture shown is a fixture for the testing frame-type load-bearing frame, which is divided into two parts, the upper and lower parts. Specifically, the two middle joint surfaces use the same connecting columns as the side parts, and the upper and lower parts are fixedly connected by bolts at the joint surface to form a standard part structure. The upper and lower adjacent and corresponding connecting columns are not connected or welded, which is convenient for installation and transportation. This frame-type fixture has the following disadvantages when conducting vibration and impact tests: (1) The vibration and impact at the four corner positions are greater than those at other positions. If the same connecting columns as the side parts are still used, the vibration and impact resistance is insufficient. (2) If the contact surfaces of the upper and lower adjacent and corresponding connecting columns are welded, the upper and lower parts are not easy to separate after the vibration and impact test, and need to be cut and welded before they can be separated, which destroys the original structural strength. Therefore, in view of the above problems, it is of great practical significance to provide a frame-type fixture for vibration and impact testing of heavy-duty electromechanical equipment with high structural strength and convenient and quick installation and disassembly. Utility Model Content

[0004] The utility model provides a frame-type tooling for vibration and impact testing of heavy-duty electromechanical equipment, which vertically connects a detachable reinforced support connection structure composed of an embedded tapered shaft pin assembly, a first main pipe and a second main pipe at four corner positions between the top frame and the bottom frame of the upper and lower two-layer structure; the embedded tapered shaft pin assembly consists of an outer circle and inner cone pipe seat, an adjustable main pin shaft screw, an adjusting nut, a locking nut, etc.; four sets of such structures are respectively installed in the middle of the upper and lower layers to position and bear vibration and impact in various directions, and the overall structural strength of the longitudinal and transverse bearing is high and the stability is good; when assembling the upper and lower parts, the tapered shaft and the tapered hole are used as the positioning assembly, which is both accurate and convenient; in the process of vibration and impact detection, the essential functions in the equipment detection standard are met, and the four groups of first main pipes 7 and second main pipes 1 are connected through the embedded tapered shaft pin assembly, which is convenient for installation and subsequent disassembly, can be reused, and has strong operational adaptability, saving time and effort; in summary, the problems in the background technology are solved.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model discloses a frame-type tooling for vibration and impact testing of heavy-duty electromechanical equipment, which adopts a two-layer structure, wherein the upper layer comprises a top frame, a side frame connected to the top frame and arranged around it, and a connection frame with fixed connection holes arranged at the bottom of the side frame; the lower layer comprises a bottom frame, a side frame connected to the bottom frame and arranged around it, and a connection frame with fixed connection holes arranged at the upper part of the side frame; the connection frames of the upper layer and the lower layer are arranged opposite to each other and fixedly connected by bolts;

[0007] The four corners at the bottom of the top frame are respectively vertically provided with first main pipes, and the four corners at the upper part of the bottom frame are respectively vertically provided with second main pipes, and each first main pipe is connected to the corresponding second main pipe by an embedded conical shaft pin assembly;

[0008] The embedded conical shaft pin assembly includes an outer circle inner cone tube seat welded to the upper end of the second main pipe, an adjusting main pin shaft screw rod with one end plugged into the outer circle inner cone tube seat and the other end threadedly connected to the lower end of the first main pipe; the adjusting main pin shaft screw rod includes a retaining ring located in the middle position, a conical block arranged on one side of the retaining ring and embedded in the outer circle inner cone tube seat, and a screw rod arranged on the other side of the retaining ring and threadedly connected to the threaded hole at the lower end of the first main pipe; an adjusting nut is fixed between the conical block and the retaining ring, and after the screw rod is threaded into the threaded hole, it is locked by a locking nut.

[0009] Furthermore, the first main pipe and the top frame, and the second main pipe and the bottom frame are fixed by welding.

[0010] Furthermore, the connection frame is provided with openings at four corners for the embedded tapered shaft pin assembly to pass through.

[0011] Furthermore, the threaded hole is welded to the end of the first main pipe by a fixing block with a built-in threaded hole.

[0012] Furthermore, an inner tapered hole which is larger on the top and smaller on the outside and is engaged with the tapered block is provided in the outer circular inner tapered tube seat.

[0013] Furthermore, a first positioning hole is provided on the side of the upper end of the second main pipe, and a second positioning hole corresponding to the first positioning hole and used for welding positioning is provided on the side of the outer circle inner cone pipe seat.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] (1) The utility model uses an embedded cone assembly to position the load-bearing device. After the two planes are fixed with bolts, the cone assembly is embedded in the four column steel pipes and locked and fixed. At the same time, the adjusting nut is screwed to tighten it with the locking nut matching hole, which plays an integral role in the vertical and horizontal load-bearing and has a high structural strength.

[0016] (2) When assembling the upper and lower parts, the tapered shaft and tapered hole are used for positioning assembly, which is both accurate and convenient; in the process of vibration and impact detection, the essential functions in the equipment detection standards are met.

[0017] (3) The four groups of first main pipes 7 and second main pipes 1 are connected by an embedded tapered pin assembly, which is an additional structure compared to the prior art. It has the advantages of high structural strength, easy installation and subsequent disassembly, and reusability. It is also a fixing device with strong operational adaptability, time-saving and labor-saving, and high reliability.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a structural schematic diagram of the existing vibration impact test frame type tooling described in the background technology;

[0021] Figure 2 for Figure 1 The main view of the structure;

[0022] Figure 3 This is a structural schematic diagram of a frame-type tooling for vibration and impact testing of heavy-duty electromechanical equipment of the utility model;

[0023] Figure 4 for Figure 3 Schematic diagram of the structure after the first main pipe, the second main pipe and the embedded tapered shaft pin assembly are assembled at the middle C position;

[0024] Figure 5 for Figure 4 Exploded diagram of the structure;

[0025] Figure 6 for Figure 5 Schematic diagram of the structure from a medium 3D perspective;

[0026] Figure 7 is a schematic diagram of the cross-sectional structure of the first main pipe;

[0027] Figure 8 It is a cross-sectional view of the outer circle and inner cone pipe seat;

[0028] Fig. 9 This is a schematic diagram of the structure of a frame-type tooling for vibration shock testing after being loaded with heavy electromechanical equipment;

[0029] Fig.10 For demolition Fig. 9 Schematic diagram of the structure behind the middle and upper structures;

[0030] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0031] 1- second main pipe, 101- first positioning hole, 2- outer circle inner cone pipe seat, 201- inner cone hole, 3- adjusting main pin shaft screw, 301- adjusting nut, 302- retaining ring, 303- screw, 305- conical block, 4- second positioning hole, 5- locking nut, 6- threaded hole, 7- first main pipe, 8- connecting frame, 801- opening, 9- top frame, 10- side frame, 11- heavy electromechanical equipment, 12- bottom frame. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only 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.

[0033] In the description of the present invention, it should be understood that terms such as "top layer", "side", "bottom layer", "lower layer", and "embedded" indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limitations on the present invention.

[0034] like Figure 1-2 As shown in the figure, the frame-type tooling used in the existing vibration impact test is shown. The frame-type load-bearing frame tooling used for this test is a fixture, which is divided into two parts, the upper and lower parts. Specifically, the two middle joint surfaces use the same connecting columns as the side surfaces. The upper and lower parts are fixed together by bolts at the joint surface to form a standard part structure. The upper and lower adjacent and corresponding connecting columns are not connected or welded, which is convenient for installation and transportation during transportation; Figure 1 The enlarged view of the part shown in A, and Figure 2 The enlarged partial view shown in B; the corresponding four corner positions of the load-bearing frame use the same connecting columns as the side parts. When the load-bearing frame carries heavy electromechanical equipment 11, it is subjected to vibration impact in all directions of up, down, left and right during the test. The corresponding four corner positions need to withstand greater impact force and vibration amplitude. The currently existing support columns cannot provide adaptive vibration and impact resistance. In addition, since the support columns between the upper and lower layers are welded, after the vibration impact test, the upper and lower parts are difficult to separate, and the welding positions need to be cut, thereby destroying the original structure of the load-bearing frame and making it impossible to reuse.

[0035] Therefore, in view of the above problems, this technical solution improves the support of the four corners based on the existing technology. The specific technical solution is as follows:

[0036] See also Figure 3-10 As shown, the utility model is a frame-type tooling for vibration impact test of heavy-duty electromechanical equipment, which adopts a two-layer structure. The upper layer includes a top frame 9, a side frame 10 connected to the top frame 9 and arranged around it, and a connection frame 8 with fixed connection holes arranged at the bottom of the side frame 10; the lower layer includes a bottom frame 12, a side frame 10 connected to the bottom frame 12 and arranged around it, and a connection frame 8 with fixed connection holes arranged on the upper part of the side frame 10; the connection frames 8 of the upper and lower layers are arranged opposite to each other and fixedly connected by bolts; this is the same structure as the above-mentioned prior art; the frame-type load-bearing frame tooling is used to carry heavy-duty electromechanical equipment 11, such as Figure 9-10 As shown, the heavy electromechanical equipment 11 carried inside in this specific embodiment is a transformer of TBEA Shenyang Transformer Group, which is specifically a top-mounted type with a large volume of 4200*2400*3000MM and a heavy weight of 30-40 tons;

[0037] Compared with the above-mentioned prior art, the technical solution has the following distinguishing features:

[0038] The four corner positions at the bottom of the top frame 9 are respectively vertically provided with first main pipes 7, and the four corner positions at the upper part of the bottom frame 12 are respectively vertically provided with second main pipes 1, and each first main pipe 7 is connected to the corresponding second main pipe 1 by an embedded conical shaft pin assembly; the first main pipe 7 and the second main pipe 1 are both made of thick steel pipes of the same diameter and thickness, and the thickness is at least twice the thickness of the upper and lower connecting columns of the side frame 10; the first main pipe 7 and the top frame 9, as well as the second main pipe 1 and the bottom frame 12 are fixed by welding; the connection frame 8 is respectively provided with openings 801 for the embedded conical shaft pin assembly to pass through at the four corner positions;

[0039] The embedded conical shaft pin assembly includes an outer circle inner cone tube seat 2 welded to the upper end of the second main pipe 1, an adjusting main pin shaft screw 3 with one end plugged into the outer circle inner cone tube seat 2 and the other end threadedly connected to the lower end of the first main pipe 7; the adjusting main pin shaft screw 3 includes a retaining ring 302 located in the middle position, a conical block 305 arranged on one side of the retaining ring 302 and embedded in the outer circle inner cone tube seat 2, and a screw 303 arranged on the other side of the retaining ring 302 and threadedly connected to the threaded hole 6 at the lower end of the first main pipe 7; an adjusting nut 301 is fixed between the conical block 305 and the retaining ring 302, and after the screw 303 is threadedly connected into the threaded hole 6, it is locked by a locking nut 5.

[0040] The threaded hole 6 is welded to the end of the first main pipe 7 by a fixing block with a built-in threaded hole; an inner tapered hole 201 which is larger on the top and smaller on the outside and fits with the tapered block 305 is provided in the outer circle inner tapered pipe seat 2; a first positioning hole 101 is provided on the side of the upper end of the second main pipe 1, and a second positioning hole 4 which is corresponding to the first positioning hole 101 and is used for welding positioning is provided on the side of the outer circle inner tapered pipe seat 2. The outer circle inner tapered pipe seat 2 is accurately and correctly welded to the second main pipe 1 through the first positioning hole 101 and the second positioning hole 4.

[0041] The difference between the present technical solution and the prior art is that the four corner positions between the top frame 9 and the bottom frame 12 of the upper and lower layers are respectively vertically connected with a detachable reinforced support connection structure consisting of an embedded conical shaft pin assembly, a first main pipe, and a second main pipe; the embedded conical shaft pin assembly is composed of an outer circle and inner cone pipe seat, an adjusting main pin shaft screw, an adjusting nut, a locking nut, etc.; four sets of such structures are respectively installed in the middle of the upper and lower layers to locate and bear vibration impacts in all directions;

[0042] The upper and lower layers are of two-layer structure, wherein the upper layer comprises a top frame 9, a side frame 10 connected to and arranged around the top frame 9, and a connecting frame 8 with fixed connecting holes arranged at the bottom of the side frame 10; the lower layer comprises a bottom frame 12, a side frame 10 connected to and arranged around the bottom frame 12, and a connecting frame 8 with fixed connecting holes arranged at the upper part of the side frame 10; the connecting frames 8 of the upper and lower layers are arranged opposite to each other and fixedly connected by bolts; this is the same structure as the above-mentioned prior art; the frame-type load-bearing frame tooling is used to carry heavy electromechanical equipment 11.

[0043] During the initial installation, first fix the upper and lower connecting frames 8 through the fixing holes with bolts, then lock and fix the four first main pipes 7 welded to the upper layer and the four second main pipes 1 of the lower layer through the embedded conical shaft pin assembly, and at the same time, screw the adjusting nut 301 to lock it with the matching hole of the locking nut 5, which plays an overall role in longitudinal, transverse and vertical load bearing; for this reason, the frame-type load-bearing main frame fixture for detection needs to be divided into upper and lower parts, which is convenient for installation and transportation during the journey; during disassembly, the reverse order is used, first loosen the locking nut 5 by screwing the adjusting nut 301 in the opposite direction, so that the embedded conical assembly is in a loose state, and then remove the bolts on the upper and lower connecting frames 8 to separate the upper and lower layers as a whole; Fig.10 As shown, based on Fig. 9 Schematic diagram of the structure of the remaining part after separating the upper layer on the overall foundation.

[0044] The embedded cone component positioning bearing device of the present invention, after the two planes are fixed with bolts, the cone components are embedded in the four column steel pipes and locked and fixed, and the adjusting nut 301 is screwed at the same time to be tightened with the locking nut matching hole, which plays an overall role of longitudinal and transverse bearing; when assembling up and down, the tapered shaft and tapered hole are used as positioning assembly, which is both accurate and convenient; in the process of vibration and impact detection, the required functions in the equipment detection standard are met, and the four groups of first main pipes 7 and second main pipes 1 are connected by the embedded cone shaft pin assembly, which is an additional structure. Compared with the prior art, it has the advantages of high structural strength, easy installation and subsequent disassembly, and reusable; therefore, the present invention provides a fixing device with strong operational adaptability, time and labor saving, and high reliability.

[0045] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A frame-type tooling for vibration and impact testing of heavy-duty electromechanical equipment, adopting an upper and lower two-layer structure, wherein the upper layer comprises a top frame (9), a side frame (10) connected to the top frame (9) and arranged around it, and a connection frame (8) with fixed connection holes arranged at the bottom of the side frame (10); the lower layer comprises a bottom frame (12), a side frame (10) connected to the bottom frame (12) and arranged around it, and a connection frame (8) with fixed connection holes arranged at the top of the side frame (10); the connection frames (8) of the upper layer and the lower layer are arranged opposite to each other and fixedly connected by bolts, characterized in that: The four corner positions at the bottom of the top frame (9) are respectively vertically provided with first main pipes (7), and the four corner positions at the top of the bottom frame (12) are respectively vertically provided with second main pipes (1), and each first main pipe (7) is connected to the corresponding second main pipe (1) by an embedded conical shaft pin assembly; The embedded conical shaft pin assembly comprises an outer circle inner cone tube seat (2) welded to the upper end of the second main tube (1), an adjusting main pin shaft screw (3) having one end plugged into the outer circle inner cone tube seat (2) and the other end threadedly connected to the lower end of the first main tube (7); the adjusting main pin shaft screw (3) comprises a retaining ring (302) located in the middle, a conical block (305) arranged on one side of the retaining ring (302) and embedded in the outer circle inner cone tube seat (2), and a screw (303) arranged on the other side of the retaining ring (302) and threadedly connected to the threaded hole (6) at the lower end of the first main tube (7); an adjusting nut (301) is fixedly arranged between the conical block (305) and the retaining ring (302), and after the screw (303) is threadedly connected into the threaded hole (6), it is locked by a locking nut (5).

2. A frame-type tooling for vibration and impact testing of heavy-duty electromechanical equipment according to claim 1, characterized in that: The first main pipe (7) and the top frame (9), as well as the second main pipe (1) and the bottom frame (12) are fixed by welding.

3. A frame-type tooling for vibration and impact testing of heavy electromechanical equipment according to claim 1, characterized in that: The connection frame (8) is provided with openings (801) at four corners for the embedded tapered shaft pin assembly to pass through.

4. A frame-type tooling for vibration and impact testing of heavy electromechanical equipment according to claim 1, characterized in that: The threaded hole (6) is welded to the end of the first main pipe (7) by using a fixing block with a built-in threaded hole.

5. The frame-type tooling for vibration and impact testing of heavy-duty electromechanical equipment according to claim 1 is characterized in that: The outer-circle inner-cone tube seat (2) is provided with an inner conical hole (201) which is larger at the top and smaller at the outside and is engaged with the conical block (305).

6. The frame-type tooling for vibration and impact testing of heavy-duty electromechanical equipment according to claim 1 is characterized in that: A first positioning hole (101) is provided on the upper side of the second main pipe (1), and a second positioning hole (4) corresponding to the first positioning hole (101) and used for welding positioning is provided on the side of the outer circle inner cone pipe seat (2).

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