CN219142204U - High-speed experimental machine for cross flow wind wheel - Google Patents

Abstract

The utility model discloses a high-speed experimental machine for a cross flow wind wheel, which comprises: the test bed is provided with a linear guide rail; the driving group comprises a first supporting frame, a supporting rotating shaft and a direct current brushless motor, the first supporting frame is fixed on the test bed and is positioned at one end of the linear guide rail, the supporting rotating shaft is rotatably arranged on the first supporting frame, and the direct current brushless motor drives the supporting rotating shaft to rotate; the second support frame is slidably arranged on the linear guide rail, the second support frame translates along the linear guide rail to be close to or far away from the driving group, and a rotary support position with adjustable height is arranged on the second support frame and is opposite to the support rotating shaft; utilize the cooperation of drive group and second support frame, can realize carrying out quick loading and unloading, test to different cross flow fans, overall structure is simple and easy, and is very convenient to experimental operation.

Description

High-speed experimental machine for cross flow wind wheel

Technical Field

The utility model relates to experimental detection equipment, in particular to a high-speed experimental machine for a cross flow wind wheel.

Background

In the quality inspection stage, the structural strength, the service life and the like of the cross flow wind wheel need to be detected through high-speed rotation to judge whether the structural strength and the service life reach standards. The current test method is commonly used for directly mounting the cross flow wind wheel on a motor, and driving the cross flow wind wheel to rotate at a certain speed and for a certain time through the motor, so as to test whether the product batch is qualified or not. The test mode often needs a large amount of time for workers to assemble the cross flow wind wheel, and the test operation is quite inconvenient.

Disclosure of Invention

The present utility model aims to solve at least one of the above-mentioned technical problems in the related art to some extent. Therefore, the utility model provides a high-speed experimental machine for the cross flow wind wheel.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

according to an embodiment of the first aspect of the utility model, the high-speed experimental machine for the cross-flow wind wheel comprises:

the test bed is provided with a linear guide rail;

the driving group comprises a first supporting frame, a supporting rotating shaft and a direct current brushless motor, wherein the first supporting frame is fixed on the test bed and is positioned at one end of the linear guide rail, the supporting rotating shaft is rotatably installed on the first supporting frame, and the direct current brushless motor drives the supporting rotating shaft to rotate;

the second support frame, second support frame slidable mounting is in on the linear guide rail, the second support frame is followed linear guide rail translation is in order to be close to or keep away from the drive group, be equipped with highly adjustable rotation support position on the second support frame, rotation support position with support the pivot is relative.

The high-speed experimental machine for the cross flow wind wheel has at least the following beneficial effects: utilize the cooperation of drive group and second support frame, can realize carrying out quick loading and unloading, test to different cross flow fans, overall structure is simple and easy, and is very convenient to experimental operation.

According to some embodiments of the utility model, the second supporting frame is provided with three needle bearings distributed at intervals of triangle, and the rotation supporting position is formed between the needle bearings.

According to some embodiments of the utility model, the second support frame comprises a slide, a first mounting plate and a second mounting plate, the first and second mounting plates being adjustably mounted on the slide, two of the needle bearings being mounted on the first mounting plate and a third of the needle bearings being mounted on the second mounting plate.

According to some embodiments of the utility model, the first and second mounting plates are secured to the slide by waist hole mating bolts.

According to some embodiments of the utility model, the first mounting plate is in a rectangular plate structure, the second mounting plate is in an inverted U-shaped plate structure, and the second mounting plate is reversely buckled above the first mounting plate and is mutually spaced.

According to some embodiments of the utility model, a belt drive is provided between the brushless dc motor and the support shaft.

According to some embodiments of the utility model, a protective cover is mounted on the test stand, and the driving group and the second supporting frame are located within a covering range of the protective cover.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of the structure of a drive-group;

FIG. 3 is a schematic structural view of a second support frame;

FIG. 4 is a schematic view of the use state of FIG. 1;

fig. 5 is a schematic view of the structure of fig. 1 with a protective cover.

Reference numerals: a test stand 100; a linear guide rail 110; a shield 120; a drive group 200; a first support frame 210; a supporting rotary shaft 220; a DC brushless motor 230; a second support frame 300; rotating the support 301; needle bearings 310; a slider 320; a first mounting plate 330; a second mounting plate 340; waist hole 350; a cross flow wind wheel 400; a steel shaft 410.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

The utility model relates to a high-speed experimental machine for a cross-flow wind wheel, which comprises a test bed 100, a driving group 200 and a second supporting frame 300.

As shown in fig. 1, the upper surface of the test stand 100 is a flat table surface for mounting the driving group 200 and the second supporting frame 300. A linear guide 110 is mounted on the test stand 100, and the linear guide 110 is linear and extends horizontally. As shown in fig. 2, the driving set 200 includes a first supporting frame 210, a supporting shaft 220, and a brushless dc motor 230. The first support frame 210 may be a plate member, and the first support frame 210 is vertically and fixedly mounted on the test stand 100. The support shaft 220 may be rotatably mounted on the first support frame 210 through a bearing. In this embodiment, the axial direction of the supporting shaft 220 is parallel to the linear guide rail 110, and the supporting shaft 220 is horizontally oriented left and right. The first support 210 is located on the left side of the linear guide 110. The brushless dc motor 230 is mounted on the first support frame 210, and the brushless dc motor 230 is in transmission connection with the support shaft 220 through a belt. The brushless dc motor 230 is connected to an external control system, and parameters such as an operation time, an operation rated current, and an operation allowable ripple current value of the brushless dc motor 230 are set by the control system. The second support 300 is mounted on the linear guide 110, and the second support 300 can be slid along the linear guide 110 and positioned at the current position. As shown in fig. 3, the second support 300 is provided with a rotation support 301, and the height of the rotation support 301 on the second support 300 can be adjusted. The rotation support 301 is located opposite to the support shaft 220. In actual use, as shown in fig. 4, the cross wind wheel 400 is installed between the support shaft 220 and the second support frame 300 in a direction in which its axial direction is parallel to the linear guide rail 110. The supporting rotating shaft 220 is inserted into the center of the left end of the cross flow wind wheel 400, and the supporting rotating shaft 220 and the cross flow wind wheel 400 can be mutually fixed through shaft pins, or flat surfaces are arranged on the side walls of the supporting rotating shaft 220 and are mutually inserted and radially fixed with the cross flow wind wheel 400, so that the cross flow wind wheel 400 and the supporting rotating shaft 220 synchronously rotate. According to the length of the cross-flow wind wheel 400, the position of the second support frame 300 on the linear guide rail 110 is adjusted, and the second support frame 300 can be locked on the linear guide rail 110 through bolts. A steel shaft 410 is arranged at the right end shaft center of the cross flow wind wheel 400, and the steel shaft 410 is inserted into the rotary supporting position 301. The height position of the rotary support 301 is adjusted so that the axis of the cross wind wheel 400 is maintained in a horizontal position. The brushless dc motor 230 is started, and the rotor 400 is driven to rotate at high speed by the supporting shaft 220. The right end of cross flow rotor 400 is relatively rotated on a rolling support position by steel shaft 410. When the control system detects that the dc brushless motor 230 has a large instantaneous current fluctuation, it can determine that the cross-flow wind wheel 400 is damaged, and then the dc brushless motor 230 stops running, and the control system records the downtime at the same time. When the brushless dc motor 230 does not have a large current ripple, the brushless dc motor 230 stops rotating after a preset system downtime, so as to detect the service life and the product strength of the cross-flow wind wheel 400. By utilizing the cooperation of the driving group 200 and the second supporting frame 300, the rapid assembly and disassembly and test of different cross-flow fans can be realized, and the whole structure is simple and convenient and fast to experimental operation.

In some embodiments of the present utility model, as shown in fig. 3, three needle bearings 310 are mounted on the second supporting frame 300, and the three needle bearings 310 are spatially distributed at a triangular interval. Preferably, the three needle bearings 310 are distributed in an equilateral triangle. The rotation support position 301 is constituted at the center of the interval between the three needle bearings 310. The steel shaft 410 of the cross flow rotor 400 is inserted between the intervals of the three needle bearings 310. The bottom two needle bearings 310 support the steel shaft 410, and the needle bearing 310 located at the upper portion presses down the steel shaft 410. The three needle bearings 310 cooperate to support the steel shaft 410 in a rolling manner and to radially limit the amount of play. Further, the second support frame 300 includes a slider 320, a first mounting plate 330, and a second mounting plate 340. The slider 320 is slidably mounted on the linear guide rail 110. The first mounting plate 330 and the second mounting plate 340 are adjustably mounted on the carriage 320. In this embodiment, the first mounting plate 330 is in a rectangular plate structure, the second mounting plate 340 is in an inverted U-shaped plate structure, the second mounting plate 340 is inverted over the first mounting plate 330, and a certain vertical space is provided between the first mounting plate 330 and the second mounting plate 340. The second mounting plate 340 surrounds both sides and an upper side of the first mounting plate 330. Two needle bearings 310 are installed at the upper portion of the first installation plate 330, and one needle bearing 310 is installed at the upper middle position of the second installation plate 340. The first mounting plate 330 and the second mounting plate 340 are fastened to the slider 320 by means of waist holes 350 in cooperation with bolts. By adjusting the relative positions of the first mounting plate 330 and the second mounting plate 340 on the slider 320, the height position of the rotation support 301 and the relative interval between the upper and lower sets of needle bearings 310 are adjusted.

In some embodiments of the present utility model, as shown in FIG. 5, a shield 120 is mounted on the test stand 100. The shield 120 covers the driving set 200 and the second supporting frame 300. When the cross-flow wind wheel 400 performs test rotation, the protection cover 120 protects the cross-flow wind wheel 400 from being damaged and separated from flying out.

In the description of the present specification, reference to the term "some particular embodiments" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (7)

1. The utility model provides a cross flow wind wheel high-speed experiment machine which characterized in that includes:

a test bed (100), wherein a linear guide rail (110) is arranged on the test bed (100);

the driving set (200), the driving set (200) comprises a first supporting frame (210), a supporting rotating shaft (220) and a direct current brushless motor (230), the first supporting frame (210) is fixed on the test bench (100) and is positioned at one end of the linear guide rail (110), the supporting rotating shaft (220) is rotatably installed on the first supporting frame (210), and the direct current brushless motor (230) drives the supporting rotating shaft (220) to rotate;

the second support frame (300), second support frame (300) slidable mounting is in on linear guide (110), second support frame (300) follow linear guide (110) translation is in order to be close to or keep away from drive group (200), be equipped with high adjustable rotation support position (301) on second support frame (300), rotation support position (301) with support pivot (220) are relative.

2. The cross flow wind wheel high-speed experiment machine according to claim 1, wherein: the second supporting frame (300) is provided with three needle bearings (310) which are distributed at intervals in a triangular mode, and the rotary supporting position (301) is formed between the needle bearings (310).

3. The cross flow wind wheel high-speed experiment machine according to claim 2, wherein: the second support frame (300) comprises a sliding seat (320), a first mounting plate (330) and a second mounting plate (340), wherein the first mounting plate (330) and the second mounting plate (340) are adjustably mounted on the sliding seat (320), two needle bearings (310) are mounted on the first mounting plate (330), and the third needle bearing (310) is mounted on the second mounting plate (340).

4. A cross flow wind wheel high speed laboratory machine according to claim 3, wherein: the first mounting plate (330) and the second mounting plate (340) are fixed on the sliding seat (320) through waist holes (350) and matched bolts.

5. A cross flow wind wheel high speed laboratory machine according to claim 3, wherein: the first mounting plate (330) is of a rectangular plate-shaped structure, the second mounting plate (340) is of an inverted U-shaped plate-shaped structure, and the second mounting plate (340) is inversely buckled above the first mounting plate (330) and is mutually spaced.

6. The cross flow wind wheel high-speed experiment machine according to claim 1, wherein: and belt transmission is arranged between the direct current brushless motor (230) and the supporting rotating shaft (220).

7. The cross flow wind wheel high-speed experiment machine according to claim 1, wherein: the test bench (100) is provided with a protective cover (120), and the driving group (200) and the second supporting frame (300) are positioned in the covering range of the protective cover (120).

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