Auxiliary device for performance test of centrifugal impeller

Abstract

The utility model discloses a centrifugal impeller performance test auxiliary device, and relates to the technical field of centrifugal impeller performance test, one side of a first positioning plate is symmetrically provided with connecting rods close to a second positioning plate, one side of the second positioning plate is symmetrically provided with cylinders, and the cylinders are symmetrically provided with connecting rods. Positioning rods are arranged on the upper surfaces of the first limiting ring and the second limiting ring in a penetrating mode, locking nuts are connected to the positions, on the upper surfaces of the first limiting ring and the second limiting ring, of the outer portions of the positioning rods in a threaded mode, and mounting rods are further arranged on the upper surfaces of the first limiting ring and the second limiting ring in a penetrating mode; a lifting rod is arranged at the upper end of the mounting rod in a penetrating mode, and the upper end of the lifting rod is connected with a pressing plate. When an air cylinder works, a connecting rod can move in a fixing groove, then a first positioning plate can move towards a second positioning plate, the centrifugal impeller can be limited through a first limiting ring and a second limiting ring, and therefore the stability of the centrifugal impeller is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal impeller performance testing, in particular to a centrifugal impeller performance testing auxiliary device. Background Art

[0002] The centrifugal impeller is an important component in the field of engineering technology. Its main characteristics are axial air inlet and radial air outlet. It increases the air pressure by using centrifugal force to do work. Its performance is directly related to the operating efficiency, stability and reliability of the entire equipment. Therefore, performance testing of the centrifugal impeller is a necessary step to ensure the quality of the equipment. The use of auxiliary fixtures is indispensable when testing the performance of centrifugal impellers. The use of fixtures can ensure the stability of the centrifugal impeller, which is convenient for its performance testing.

[0003] A Chinese patent discloses a fixture for impeller testing (authorization announcement number CN221037920U). This patented technology can conveniently fix the turntable to the bottom plate by setting a base plate, a first motor, a turntable, a connecting piece, an impeller workpiece and a tightening nut, and realize the connection and rotation testing of impellers of various sizes, reducing the wear on the impeller. By setting a fixing frame, an adjusting piece, an electric push rod and a microwave sensor, it can further adapt to the testing of impellers with different outer diameters, thereby improving practicality.

[0004] However, most existing impeller testing fixtures use bolts to position the impeller, resulting in slow positioning efficiency and affecting the impeller testing process. For example, the aforementioned reference document uses bolts to position the impeller. In actual application, the bolts need to be continuously rotated when positioning, which reduces the positioning efficiency and further affects the impeller testing. Therefore, those skilled in the art have provided a centrifugal impeller performance testing auxiliary device to solve the problems raised in the above background technology. Utility Model Content

[0005] In view of the deficiencies in the prior art, the present invention provides a centrifugal impeller performance test auxiliary device, which solves the problems raised by the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a performance test auxiliary device for a centrifugal impeller, comprising: a first positioning plate and a second positioning plate arranged on one side of the first positioning plate, a first limiting ring is installed on the upper surface of the first positioning plate, a second limiting ring is installed on the upper surface of the second positioning plate, a connecting rod is symmetrically arranged on one side of the first positioning plate near the second positioning plate, a cylinder is symmetrically installed on one side of the second positioning plate, a positioning rod is penetrated by the upper surfaces of the first limiting ring and the second limiting ring, the outside of the positioning rod is threadedly connected with a locking nut on the upper surfaces of the first limiting ring and the second limiting ring, a mounting rod is also penetrated on the upper surfaces of the first limiting ring and the second limiting ring, a lifting rod is penetrated on the upper end of the mounting rod, and a pressing plate is connected to the upper end of the lifting rod.

[0007] As a further technical solution of the present invention, a fixing groove is further provided inside the second positioning plate, and the telescopic end of the cylinder is connected to one end of the connecting rod inside the fixing groove.

[0008] As a further technical solution of the present invention, the upper surfaces of the first positioning plate and the second positioning plate are both provided with mounting holes, and the lower ends of the positioning rods are embedded in the mounting holes and threadedly connected to the mounting holes.

[0009] As a further technical solution of the present invention, the upper surfaces of the first limiting ring and the second limiting ring are further provided with connecting holes, and the lower ends of the mounting rods are embedded in the connecting holes and are threadedly connected to the connecting holes.

[0010] As a further technical solution of the present invention, a connecting sleeve is symmetrically provided on the lower surface of the pressing plate, and the upper end of the lifting rod is embedded in the connecting sleeve and connected by screws.

[0011] As a further technical solution of the present invention, an electric telescopic rod is further installed inside the mounting rod, and the telescopic end of the electric telescopic rod is connected to the lower end of the lifting rod.

[0012] The utility model provides a centrifugal impeller performance test auxiliary device, which has the following beneficial effects compared with the prior art:

[0013] 1. The performance test auxiliary device of a centrifugal impeller designed in the present invention is provided with a cylinder, a connecting rod and a fixed groove. In this way, when the cylinder is working, the connecting rod will move inside the fixed groove, and then the first positioning plate can be moved toward the position of the second positioning plate to limit the centrifugal impeller through the first limiting ring and the second limiting ring, thereby ensuring the stability of the centrifugal impeller, so as to facilitate the performance test work, and the positioning rod and the locking nut can be used to facilitate the disassembly of the first limiting ring and the second limiting ring, so as to facilitate their replacement, and the device has good practicality.

[0014] 2. The performance test auxiliary device of a centrifugal impeller designed in this invention is provided with a clamping plate, a lifting rod, a mounting rod and an electric telescopic rod. When the electric telescopic rod inside the mounting rod is working, the lifting rod will be lifted and lowered inside the mounting rod, and the clamping plate will be pressed downward to clamp the centrifugal impeller, thereby ensuring the stability of the centrifugal impeller and facilitating its performance test. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a centrifugal impeller performance test auxiliary device;

[0016] Figure 2 This is a schematic diagram of the structure of a compression plate in a centrifugal impeller performance test auxiliary device;

[0017] Figure 3 This is a schematic diagram of the structure of a connecting rod in a centrifugal impeller performance test auxiliary device;

[0018] Figure 4 This is a schematic structural diagram of the second limiting ring in a centrifugal impeller performance test auxiliary device.

[0019] In the figure: 1. First positioning plate; 11. Connecting rod; 12. First limiting ring; 2. Second positioning plate; 21. Second limiting ring; 22. Fixing groove; 3. Cylinder; 4. Pressing plate; 41. Connecting sleeve; 42. Lifting rod; 43. Mounting rod; 431. Electric telescopic rod; 5. Positioning rod; 51. Mounting hole; 52. Locking nut. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] See also Figure 1-4The utility model provides a technical solution for a centrifugal impeller performance test auxiliary device: comprising: a first positioning plate 1 and a second positioning plate 2 arranged on one side of the first positioning plate 1, a first limiting ring 12 is installed on the upper surface of the first positioning plate 1, a second limiting ring 21 is installed on the upper surface of the second positioning plate 2, a connecting rod 11 is symmetrically arranged on one side of the first positioning plate 1 near the second positioning plate 2, a cylinder 3 is symmetrically installed on one side of the second positioning plate 2, a positioning rod 5 is penetrated on the upper surface of the first limiting ring 12 and the second limiting ring 21, and the positioning rod 5 The outer surface of the first limiting ring 12 and the upper surface of the second limiting ring 21 are both threadedly connected with a locking nut 52. The upper surfaces of the first limiting ring 12 and the second limiting ring 21 are also penetrated by a mounting rod 43. The upper end of the mounting rod 43 is penetrated by a lifting rod 42. The upper end of the lifting rod 42 is connected to a clamping plate 4. This arrangement utilizes the first limiting ring 12 and the second limiting ring 21 to achieve the purpose of positioning the centrifugal impeller, and the clamping plate 4 can improve the positioning effect of the centrifugal impeller, thereby ensuring the stability of the centrifugal impeller to facilitate its testing work.

[0022] like Figure 3 As shown, a fixing groove 22 is further provided inside the second positioning plate 2, and the telescopic end of the cylinder 3 is connected to one end of the connecting rod 11 inside the fixing groove 22. This arrangement utilizes the operation of the cylinder 3 to cause the connecting rod 11 to move inside the fixing groove 22, thereby enabling the first positioning plate 1 to move toward the position of the second positioning plate 2 to achieve the purpose of clamping and positioning the centrifugal impeller.

[0023] like Figure 1 and Figure 3 As shown, the upper surfaces of the first positioning plate 1 and the second positioning plate 2 are both provided with mounting holes 51, and the lower end of the positioning rod 5 is embedded in the interior of the mounting hole 51 and is threadedly connected to the mounting hole 51. This setting utilizes the threaded connection between the positioning rod 5 and the mounting hole 51 to facilitate the installation and disassembly of the positioning rod 5, so as to facilitate the subsequent installation of the first limiting ring 12 and the second limiting ring 21.

[0024] like Figure 2 So and Figure 4 As shown, the upper surfaces of the first limiting ring 12 and the second limiting ring 21 are also provided with connecting holes, and the lower ends of the mounting rods 43 are embedded in the connecting holes and are threadedly connected to the connecting holes. This arrangement utilizes the threaded connection between the mounting rods 43 and the connecting holes to facilitate the installation and disassembly of the mounting rods 43.

[0025] like Figure 2As shown, a connecting sleeve 41 is symmetrically provided on the lower surface of the pressing plate 4, and the upper end of the lifting rod 42 is embedded in the connecting sleeve 41 and connected by screws. An electric telescopic rod 431 is also installed inside the mounting rod 43, and the telescopic end of the electric telescopic rod 431 is connected to the lower end of the lifting rod 42. This setting uses screws to install the connecting sleeve 41 and the lifting rod 42, so that when the electric telescopic rod 431 is working, the lifting rod 42 can be raised and lowered to press the centrifugal impeller, thereby ensuring the stability of the centrifugal impeller.

[0026] The working principle of the present invention is as follows: when the performance test auxiliary device of the present invention is used, the first limiting ring 12 and the second limiting ring 21 are first installed on the upper surface of the first positioning plate 1 and the second positioning plate 2 respectively. During installation, the upper end of the positioning rod 5 can pass through the upper surface of the first limiting ring 12 and the second limiting ring 21 and be locked by the locking nut 52, thereby achieving the purpose of installing the first limiting ring 12 and the second limiting ring 21. After installation, the centrifugal impeller that needs performance testing can be placed on the first positioning plate 1 and the second positioning plate 2, and after placement, the cylinder 3 is used to press the impeller. During operation, the connecting rod 11 will move inside the fixed groove 22, and then the first positioning plate 1 can be moved toward the position of the second positioning plate 2 to limit the centrifugal impeller through the first limiting ring 12 and the second limiting ring 21, thereby ensuring the stability of the centrifugal impeller for performance testing. At the same time, by starting the electric telescopic rod 431 inside the mounting rod 43, the lifting rod 42 will be lifted and lowered inside the mounting rod 43, and then the clamping plate 4 can be moved downward to press the centrifugal impeller, thereby ensuring the stability of the centrifugal impeller for performance testing.

[0027] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications should be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention shall, unless otherwise specified or limited, be implemented in accordance with conventional means in the art.

Claims

1. A centrifugal impeller performance test auxiliary device, characterized in that: include: A first positioning plate (1) and a second positioning plate (2) arranged on one side of the first positioning plate (1), a first limiting ring (12) is installed on the upper surface of the first positioning plate (1), a second limiting ring (21) is installed on the upper surface of the second positioning plate (2), a connecting rod (11) is symmetrically arranged on one side of the first positioning plate (1) near the second positioning plate (2), and a cylinder (3) is symmetrically installed on one side of the second positioning plate (2), a positioning rod (5) is passed through the upper surfaces of the first limiting ring (12) and the second limiting ring (21), and the outer portion of the positioning rod (5) is threadedly connected to the upper surfaces of the first limiting ring (12) and the second limiting ring (21) with a locking nut (52), and a mounting rod (43) is also passed through the upper surfaces of the first limiting ring (12) and the second limiting ring (21), and a lifting rod (42) is passed through the upper end of the mounting rod (43), and the upper end of the lifting rod (42) is connected to the pressing plate (4); A fixing groove (22) is also provided inside the second positioning plate (2), and the telescopic end of the cylinder (3) is connected to one end of the connecting rod (11) inside the fixing groove (22).

2. A centrifugal impeller performance test auxiliary device according to claim 1, characterized in that: The upper surfaces of the first positioning plate (1) and the second positioning plate (2) are both provided with mounting holes (51), and the lower ends of the positioning rods (5) are embedded in the mounting holes (51) and are threadedly connected to the mounting holes (51).

3. The centrifugal impeller performance test auxiliary device according to claim 1, characterized in that: The upper surfaces of the first limiting ring (12) and the second limiting ring (21) are also provided with connection holes, and the lower ends of the mounting rods (43) are embedded in the connection holes and are threadedly connected to the connection holes.

4. The centrifugal impeller performance test auxiliary device according to claim 1, characterized in that: A connecting sleeve (41) is symmetrically provided on the lower surface of the pressing plate (4), and the upper end of the lifting rod (42) is embedded in the connecting sleeve (41) and connected by screws.

5. The centrifugal impeller performance test auxiliary device according to claim 1, characterized in that: An electric telescopic rod (431) is also installed inside the installation rod (43), and the telescopic end of the electric telescopic rod (431) is connected to the lower end of the lifting rod (42).

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