CN218674161U - Connecting structure of sample machine mounting rack for test - Google Patents

Abstract

The utility model relates to an axial-flow type pad lift fan detects technical field, and discloses an experimental model machine installation rack connection structure of using, including base and motor, backup pad, back backup pad before the top of base has welded in proper order, weld between preceding backup pad and the back backup pad, the front and the equal fixed mounting in the back of preceding backup pad have the X channel-section steel, the front and the equal fixed mounting in the back of back backup pad have the strengthening rib, the mounting hole has all been seted up on preceding backup pad and the back backup pad. Through fan test standard requirement, fan axis height is greater than or equal to 3500mm, combines test site pad case size, and H =350 mm's H shaped steel is chooseed for use to design rack base, plays support and connection effect to experimental fan, and base, preceding backup pad, back backup pad all adopt the Q235 section bar, are convenient for adjust the location with bolted connection during the installation, and axial-flow type pad lift fan model machine installation is debugged the completion after, weld each connection position an organic whole.

Description

Connecting structure of sample machine mounting rack for test

Technical Field

The utility model relates to an axial-flow type pad lift fan detects technical field, specifically is an experimental model machine installation rack connection structure of using.

Background

The aerodynamic performance mainly refers to the stress characteristic, the gas flow rule and the accompanying physicochemical change of an object under the condition of relative motion with gas, and a reasonable mechanical model is provided by analyzing the flow phenomenon and mechanism through experiments and observation.

When an axial-flow type cushion lifting fan prototype is tested and detected, model modeling of aerodynamic performance is generally required to be carried out, and data are repeatedly calibrated and tested, so that the use level of the fan meeting the industrial standard is reached, and in the sample test, the assembly of the fan and the connection stability between a guaranteed shaft and a motor need to be debugged and matched.

According to the actual conditions such as the standard requirements and the test site conditions of GB/T1236-2017 Standard air duct Performance test for Industrial ventilator, a connecting structure of a sample machine mounting rack for a test is provided.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides an experimental model machine installation rack connection structure of using.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an experimental appearance machine installation rack connection structure of using, includes base and motor, preceding backup pad, back backup pad have been welded in proper order at the top of base, weld between preceding backup pad and the back backup pad, the front of preceding backup pad and the equal fixed mounting in the back have the X channel-section steel, the front of back backup pad and the equal fixed mounting in the back have the strengthening rib, the mounting hole has all been seted up on preceding backup pad and the back backup pad, and the inner wall fixed mounting of mounting hole has experimental fan, the equal fixed mounting in bottom four corners of base has the keysets, the top left side fixed mounting of base has the test bench, fixed mounting has the bearing frame on the test bench, and is provided with the bearing on the bearing frame, the output of experimental fan passes through the one end of the experimental main shaft of shaft coupling fixedly connected with, and the fixed inner circle inner wall that runs through the bearing of the other end of experimental main shaft to extend left. The front supporting plate is connected with a hoisting interface and an inlet air collector of the adjustable front guide vane device, plays a role in supporting the upper part of the axial flow type cushion lifting machine sample machine, can fix the inlet air collector, is connected with the rear guide vane assembly, plays a role in supporting the bottom of the axial flow type cushion lifting machine sample machine, and is additionally provided with an air duct connecting flange for connecting an air performance test pipeline.

Preferably, the outer wall of the extending end of the test main shaft is sequentially and fixedly sleeved with a bearing retainer ring and an input flange.

Preferably, one end of the input flange, which is far away from the test main shaft, is fixedly connected with one end of a carbon fiber shaft, and one end of the carbon fiber shaft, which is far away from the input flange, is fixedly connected with one end of a short shaft. According to the performance test requirements of the fan, the carbon fiber material is light in weight, does not need additional support, and has the advantages of high critical rotating speed, high bending strength and high tensile strength, so that the carbon fiber shaft is used as the intermediate shaft.

Preferably, the number of the bearing seats and the number of the bearings are two respectively, and the other bearing seat is arranged on a short shaft, and one end of the short shaft, which is far away from the carbon fiber shaft, fixedly penetrates through the inner wall of the inner ring of the other bearing and extends leftwards. And placing the short shaft at the mounting position, placing the bearing seat of the short shaft on the mounting base, and supporting the other end of the short shaft by using a temporary support, and adjusting the position of the short shaft by taking the test fan and the input shaft flange of the bracket unit as a reference.

Preferably, a torque sensor is fixedly mounted on the extending end of the short shaft, and the short shaft extends leftwards continuously.

Preferably, the extension of minor axis is served fixedly connected with flange shaft coupling, and flange shaft coupling keeps away from on the one side of minor axis fixed mounting have the power flange, the fixed cover of power flange is established on the output of motor. In order to meet the performance requirement of a test prototype, a variable frequency motor is adopted for direct driving.

(III) advantageous effects

Compared with the prior art, the utility model provides an experimental model machine installation rack connection structure that uses possesses following beneficial effect:

1. this kind of experimental sample machine installing bench connection structure of using, through the fan test standard requirement, fan axis height is greater than or equal to 3500mm, combine experimental place to fill up the case size, design rack base chooses H shaped steel that H =350mm for use, play support and connection effect to experimental fan, and the base, preceding backup pad, back backup pad all adopt the Q235 section bar, are convenient for adjust the location with bolted connection during the installation, and axial-flow type pad rises fan model machine installation and debugging and accomplishes the back, welds each connection position and becomes an organic whole.

2. This kind of test is with sample machine installation rack connection structure, through experimental main shaft and carbon fiber shaft connection, need installation bearing and bearing frame, so design test bench adopts solid round steel and 10mm steel sheet welding to form, and the triangle appearance does benefit to the water conservancy diversion, can reach the effect that reduces the intake air flow loss of air inlet department under the prerequisite of supporting to the bearing frame on the experimental main shaft, and its high ability satisfies the axis altitude requirement.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a front view of the present invention;

fig. 2 is a front view of the base of the present invention;

fig. 3 is a left side view of the front support plate of the present invention;

fig. 4 is a top view of the front support plate, the rear support plate and the base of the present invention.

In the figure: 1. a base; 2. a front support plate; 3. a rear support plate; 4. an adapter plate; 5. a test bed; 6. testing a fan; 7. testing the main shaft; 8. a bearing retainer ring; 9. an input flange; 10. a carbon fiber shaft; 11. a short axis; 12. a bearing seat; 13. a torque sensor; 14. a flange coupling; 15. a power flange; 16. an electric motor.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Example one

As shown in fig. 1-4, the utility model provides a prototype installation rack connection structure for test, including base 1 and motor 16, the top of base 1 has welded preceding backup pad 2 in proper order, back backup pad 3, weld between preceding backup pad 2 and the back backup pad 3, the front and the back of preceding backup pad 2 all have fixed X channel-section steel, the front and the back of back backup pad 3 all have fixed the strengthening rib, the mounting hole has all been seted up on preceding backup pad 2 and back backup pad 3, and the inner wall fixed mounting of mounting hole has experimental fan 6, the bottom four corners of base 1 all have fixed mounting adapter plate 4, the top left side fixed mounting of base 1 has experimental bench 5, fixed mounting has bearing frame 12 on experimental bench 5, and be provided with the bearing on bearing frame 12, the output of experimental fan 6 passes through the one end of shaft coupling fixedly connected with experimental main shaft 7, and the inner circle inner wall of the fixed through bearing of the other end of experimental main shaft 7, and extend to the left, preceding backup pad 2 is connected with the hoist and mount interface and import wind collector of adjustable preceding guide vane device, play a role in bearing support the prototype, and play a role in supporting the air duct connection of a prototype, the air duct connection of the prototype, the test is connected with the air duct connection pipeline, the guide vane connection pipeline connection of the prototype;

in the embodiment, the axial height of the fan is more than or equal to 3500mm according to the fan test standard requirement, the size of the pad box in the test site is combined, H-shaped steel with the length of H =350mm is selected for the pedestal 1 of the design rack, the fan 6 is supported and connected, Q235 sectional materials are adopted for the pedestal 1, the front support plate 2 and the rear support plate 3, the pedestal 1, the front support plate 2 and the rear support plate are connected through bolts during installation so as to be convenient for adjustment and positioning, and after the axial flow type pad lifting fan prototype is installed and debugged, all connecting parts are welded into a whole.

Example two

As shown in fig. 1-4, on the basis of the first embodiment, the utility model provides a technical solution: preferably, the outer wall of the extending end of the test main shaft 7 is sequentially fixedly sleeved with a bearing retainer ring 8 and an input flange 9, one end of the input flange 9, which is far away from the test main shaft 7, is fixedly connected with a carbon fiber shaft 10, one end of the carbon fiber shaft 10, which is far away from the input flange 9, is fixedly connected with a short shaft 11, the carbon fiber material is light in weight, does not need additional support, and has the advantages of high critical rotation speed, high bending strength and high tensile strength, two bearing seats 12 and two bearings are arranged respectively, and the other bearing seat 12 is arranged on the short shaft 11, one end of the short shaft 11, which is far away from the carbon fiber shaft 10, is fixedly penetrated through the inner ring inner wall of the other bearing and extends leftwards, the short shaft 11 is placed at a mounting position, the bearing seat 12 of the short shaft 11 is placed on a mounting base, the other end is supported by a temporary support, the test fan 6 and the support unit input flange 9 are used as a reference, the position of the short shaft 11 is adjusted, a torque sensor 13 is fixedly arranged on the extending end of the short shaft 11, and the short shaft 11 continues to extend leftwards, a flange 14 is fixedly connected to the extending end of the short shaft coupling 11, a flange 14 is fixedly connected to the extending end of the flange 14, and a power flange 15 is fixedly arranged on the side far away from the flange 11, and an output end of a fixed motor 16 fixed on the flange 15;

in this embodiment, be connected with carbon fiber shaft 10 through experimental main shaft 7, need installation bearing and bearing frame 12, so design test bench 5 adopts solid round steel and 10mm steel sheet welding to form, and the triangle appearance does benefit to the water conservancy diversion, can reach the effect that reduces the intake air flow loss of air intake department under the prerequisite of supporting bearing frame 12 on experimental main shaft 7, and its high ability satisfies the requirement of axis height.

The working principle of the test sample machine mounting rack connecting structure is described in detail below, when the test sample machine mounting rack connecting structure is used, all parts such as profiles in a frame structure are in welded connection and are connected tightly, a base 1 of a test fan 6 is rigidly fixed on the ground through six adapter plates 4 below, a short shaft 11 is placed at a mounting position, a bearing seat 12 of the short shaft 11 is placed on a mounting base, the other end of the bearing seat is supported by a temporary support, the position of the short shaft 11 is adjusted by taking the test fan 6 and a support unit input flange 9 as references, after centering is completed, a carbon fiber shaft 10, the short shaft 11 and a torque sensor 13 are sequentially mounted in place, the temporary support is removed, the carbon fiber shaft 11 is centered with a driving motor 16 by taking the short shaft 11 input flange 9 as references, after centering is completed, a rotating part of a disc shaft system is free of clamping stagnation, in order to meet test performance requirements, a variable frequency motor 16 is adopted for direct driving, the power is not less than 4000kW, the maximum rotating speed is not lower than 1320r/min, the model of the torque sensor 13 is CYB-S, axial force effect in the running process of the test fan 6 in the running process is considered, the whole lubricating oil shaft system generates axial displacement, so that a 1X bearing seat mounting rack connecting structure can meet requirements of a LOAD type fan, and a bearing type A12A bearing type, and a bearing pedestal bearing type (1A) and a bearing type FAAD bearing capable of a bearing capable of meeting the axial displacement of a FAAD bearing capable of meeting the axial displacement of meeting requirements of meeting the requirement of meeting the German fan type.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a reference structure" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Claims (6)

1. The utility model provides an experimental sample machine installation rack connection structure of using, includes base (1) and motor (16), its characterized in that: the utility model discloses a bearing test device, including base (1), preceding backup pad (2), back backup pad (3) have been welded in proper order at the top of base (1), weld between preceding backup pad (2) and the back backup pad (3), the front and the equal fixed mounting in the back of preceding backup pad (2) have the X channel-section steel, the front and the equal fixed mounting in the back of back backup pad (3) have the strengthening rib, the mounting hole has all been seted up on preceding backup pad (2) and back backup pad (3), and the inner wall fixed mounting of mounting hole has experimental fan (6), the equal fixed mounting in bottom four corners of base (1) has adapter plate (4), the top left side fixed mounting of base (1) has test rack (5), fixed mounting has bearing frame (12) on test rack (5), and is provided with the bearing on bearing frame (12), the output of experimental fan (6) passes through the one end of shaft coupling fixedly connected with experimental main shaft (7), and the inner circle inner wall that runs through the bearing is fixed to the other end of experimental main shaft (7) to extend left.

2. The test sample mounting rack connecting structure according to claim 1, wherein: the outer wall of the extending end of the test main shaft (7) is sequentially and fixedly sleeved with a bearing retainer ring (8) and an input flange (9).

3. The test sample mounting rack connecting structure according to claim 2, wherein: one end of the input flange (9), far away from the test main shaft (7), is fixedly connected with one end of a carbon fiber shaft (10), and one end of the carbon fiber shaft (10), far away from the input flange (9), is fixedly connected with one end of a short shaft (11).

4. The test sample mounting rack connecting structure according to claim 3, wherein: the number of the bearing seats (12) and the number of the bearings are respectively two, the other bearing seat (12) is arranged on the short shaft (11), and one end, far away from the carbon fiber shaft (10), of the short shaft (11) fixedly penetrates through the inner wall of the inner ring of the other bearing and extends leftwards.

5. The test sample mounting rack connecting structure according to claim 4, wherein: and a torque sensor (13) is fixedly mounted on the extending end of the short shaft (11), and the short shaft (11) continuously extends leftwards.

6. The test sample mounting rack connecting structure according to claim 5, wherein: fixedly connected with flange shaft coupling (14) on the extension end of minor axis (11), and flange shaft coupling (14) keep away from on one side of minor axis (11) fixed mounting have power flange (15), power flange (15) fixed cover is established on the output of motor (16).

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