CN114962246A

CN114962246A - Automatic test equipment of compressor performance

Info

Publication number: CN114962246A
Application number: CN202210707903.8A
Authority: CN
Inventors: 李峰; 高娟; 吴辉; 李伟; 高杉; 崔连涛
Original assignee: Qingdao Technical College
Current assignee: Qingdao Technical College
Priority date: 2022-05-20
Filing date: 2022-05-20
Publication date: 2022-08-30

Abstract

The invention provides automatic testing equipment for performance of a compressor, peripheral plates (602) of a crankshaft locking device (6) of the automatic testing equipment are uniformly arranged inside a support (601) at intervals along the circumference, the bottom of the support (601) is provided with a slideway, a plurality of friction wheels are arranged in the slideway, one end of a screw rod (606) is in threaded connection with the support (601), the other end of the screw rod is hinged with the middle part of a connecting rod (605), two ends of the connecting rod (605) are hinged on the peripheral plates (602), an inner lining plate (603) is arranged between two adjacent peripheral plates (602), a connecting plate (604) is fixedly arranged on the inner lining plate (603), two ends of the connecting plate (604) are provided with horizontal sliding grooves, guide pins are inserted in the horizontal sliding grooves and fixedly arranged on the peripheral plates (602), and the peripheral plates (602) slide along the horizontal sliding grooves through the guide pins. The invention has the beneficial effects that: the oil feeding speed and the oil feeding amount test device can be suitable for crankshafts of different sizes, and is high in automation degree, good in test effect and high in universality.

Description

Automatic test equipment of compressor performance

Technical Field

The invention relates to the technical field of refrigeration equipment detection, in particular to automatic compressor performance testing equipment.

Background

The compressor is a heart of the refrigeration system, and sucks low-temperature and low-pressure refrigerant gas from the air suction pipe, drives the piston to compress the refrigerant gas through the operation of the motor, and discharges high-temperature and high-pressure refrigerant gas to the exhaust pipe to provide power for the refrigeration cycle, so that the refrigeration cycle of compression → condensation → expansion → evaporation (heat absorption) is realized. In order to ensure the delivery qualification performance of the refrigeration compressor, improve the product competition type and simultaneously improve the economic benefit, manufacturers of small-sized piston compressors of refrigerators pay more and more attention to delivery inspection work of the refrigeration compressor of the refrigerators. From the technical aspect, the oil applying speed and the oil applying amount of the crankshaft of the refrigerator compressor can be guaranteed, the reliability of machinery can be guaranteed for the refrigerator compressor, and the compressor can run more stably. Because the refrigeration compressor model is of many kinds, the structure size diverse, when the test bent axle oil effect, artifical efficiency of software testing and accuracy are low, detect the project dispersion, the detection achievement of same product needs to go on through many equipment, often go on through the manual work in the switching process between many equipment, both increased the check out test set cost (the equipment is many, the repeated waste of mechanism), the cost of labor, increased the uncertainty that detects again (the switching between each equipment of manual intervention, easily suffer to miss, the false positive detection), check out test set's commonality is not strong.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: to the problem that prior art exists, provide a compressor performance automation test equipment, simple structure is light, control convenient and degree of automation height, can be suitable for not unidimensional bent axle the speed and the oil loading test of oiling, the test effect is good, and the commonality is strong.

The technical problem to be solved by the invention is realized by adopting the following technical scheme: an automatic compressor performance testing device comprises a spherical cover shell, a fixing frame, a cylinder wall, a cover shell driving device, a stroboscope and a crankshaft locking device, wherein the fixing frame is cylindrical, the bottom of the fixing frame is an arc bottom surface protruding outwards, an annular chute is arranged at the top of the fixing frame, the spherical cover shell is embedded in the annular chute, the stroboscope is arranged at the top of the fixing frame, the middle of the fixing frame is provided with a detachable cylinder wall, a rotating wheel of the cover shell driving device arranged on the fixing frame is in contact fit with the spherical cover shell, the crankshaft locking device is arranged inside the fixing frame and comprises a support, an outer peripheral plate, an inner lining plate, a connecting rod and a screw rod, the outer peripheral plate is uniformly arranged inside the support at intervals along the circumference, the bottom of the support is provided with a slide way, a plurality of friction wheels are arranged in the slide way, and a driving motor of the friction wheels is arranged on the fixing frame, one end of the screw rod is in threaded fit with the support, the other end of the screw rod is hinged to the middle of the connecting rod, two ends of the connecting rod are hinged to the peripheral plates, an inner lining plate is arranged between every two adjacent peripheral plates, a connecting plate is fixedly mounted on the inner lining plate, horizontal sliding grooves are formed in two ends of the connecting plate, guide pins are inserted into the horizontal sliding grooves and fixedly arranged on the peripheral plates, and the peripheral plates slide along the horizontal sliding grooves through the guide pins.

Preferably, a plurality of spiral protrusions are arranged on the inner side wall surface of the spherical surface housing, and the spiral direction of the spiral protrusions is opposite to the rotation direction of the spherical surface housing.

Preferably, a plurality of balls are arranged between the spherical surface housing and the annular sliding groove.

Preferably, the spherical housing and the cylinder wall are both made of transparent materials.

Preferably, the upper portion of mount is annular box body, annular spout establishes at the top of annular box body, and the lowest department of annular box body bottom is equipped with the oil catcher, is connected through many spliced poles between the arc bottom surface of mount bottom and the annular box body.

Preferably, the bottom of the fixing frame is provided with a heating device and an electromagnet.

Preferably, a high-speed camera is mounted on the top of the fixed frame.

Preferably, the outer surfaces of the rotating wheel and the friction wheel of the housing driving device are provided with patterns for increasing friction force.

Preferably, the surfaces of the peripheral plate and the inner lining plate are both paved with an elastic material layer.

Compared with the prior art, the invention has the beneficial effects that: simple structure is light, control convenient and degree of automation height, can be suitable for not unidimensional bent axle the speed of oiling and the test of oiling, and the test effect is good, and the commonality is strong.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the internal structure of the present invention with the spherical cover and the cylindrical wall hidden.

Fig. 3 is a front view of the crankshaft locking device of the present invention.

Fig. 4 is a top view of the crankshaft locking device of the present invention.

Fig. 5 is a schematic structural view of the crankshaft locking device of the present invention.

Fig. 6 is a partial enlarged view of the junction of the peripheral plate, the inner lining plate and the connecting plate of the present invention.

Fig. 7 is a schematic view of the internal structure of the spherical housing of the present invention.

The labels in the figure are: 1-spherical housing, 2-fixing frame, 3-cylindrical wall, 4-housing driving device, 5-stroboscope, 6-crankshaft locking device, 601-bracket, 602-peripheral plate, 603-inner lining plate, 604-connecting plate, 605-connecting rod and 606-screw rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1 and 2, an automatic testing device for performance of a compressor comprises a spherical surface housing 1, a fixing frame 2, a cylinder wall 3, a housing driving device 4, a stroboscope 5 and a crankshaft locking device 6, wherein the fixing frame 2 is cylindrical, the bottom of the fixing frame 2 is an arc-shaped bottom surface protruding outwards, an annular sliding groove is formed in the top of the fixing frame 2, the spherical surface housing 1 is embedded in the annular sliding groove, and preferably, a plurality of balls are arranged between the spherical surface housing 1 and the annular sliding groove so as to reduce friction when the spherical surface housing 1 rotates in the annular sliding groove. Stroboscope 5 is established at the top of mount 2, and the frequency through adjusting the stroboscope matches with the slew velocity of bent axle locking device 6 to observe the bent axle condition of oiling, the motion trail of fluid when high-speed camera record bent axle oils is installed at the top of mount 2. The middle part of mount 2 is equipped with detachable section of thick bamboo wall 3, and the rotation wheel of housing drive arrangement 4 on the installation mount 2 contacts cooperation with spherical housing 1, and when spherical housing 1 rotated under housing drive arrangement 4 drove, its rotation direction was opposite with bent axle locking device 6's rotation direction, the surface of housing drive arrangement 4's rotation wheel is equipped with the decorative pattern of increase frictional force to promote the power transmission that drives spherical housing 1 pivoted. The upper portion of mount 2 is annular box body, the top at annular box body is established to the annular spout, and the lower of annular box body bottom is equipped with the oil collecting port, is connected through many spliced poles between the arc bottom surface of mount 2 bottom and the annular box body, the bottom of mount 2 is equipped with heating device and electro-magnet to the viscosity of fluid changes when simulation compressor normal during operation fluid temperature risees.

As shown in fig. 7, a plurality of spiral protrusions are arranged on the inner side wall surface of the spherical surface housing 1, and the spiral direction of the spiral protrusions is opposite to the rotation direction of the spherical surface housing 1, so that splashing of oil is reduced, and collection of the oil is facilitated. The spherical surface housing 1 and the cylinder wall 3 are both made of transparent materials, so that observation is convenient.

As shown in fig. 3-6, the crankshaft locking device 6 is arranged inside the fixing frame 2, the crankshaft locking device 6 includes a support 601, a peripheral plate 602, an inner lining plate 603, a connecting plate 604, a connecting rod 605 and a screw 606, the peripheral plate 602 is arranged inside the support 601 at regular intervals along the circumference, the bottom of the support 601 is provided with a slideway, a plurality of friction wheels are arranged in the slideway, driving motors of the friction wheels are arranged on the fixing frame 2, and the outer surfaces of the friction wheels are provided with patterns for increasing friction force. One end of a screw 606 is in threaded fit with the support 601, the other end of the screw is hinged with the middle of a connecting rod 605, two ends of the connecting rod 605 are hinged on the peripheral plates 602, an inner lining plate 603 is arranged between two adjacent peripheral plates 602, a connecting plate 604 is fixedly mounted on the inner lining plate 603, horizontal sliding grooves are formed in two ends of the connecting plate 604, guide pins are inserted into the horizontal sliding grooves and fixedly arranged on the peripheral plates 602, the peripheral plates 602 slide along the horizontal sliding grooves through the guide pins, elastic material layers are laid on the surfaces of the peripheral plates 602 and the inner lining plate 603, and contact force and sealing performance between the peripheral plates 602 and the inner lining plate 603 and between the inner lining plate 603 and a tested compressor crankshaft are improved. When the device is used, a compressor crankshaft to be measured is placed into an annular body consisting of a peripheral plate 602, an inner lining plate 603 and a connecting plate 604, the number of the peripheral plate 602 and the inner lining plate 603 is not less than 8 for enhancing the roundness of the annular body, and the screw 606 pushes a connecting rod 605 to enable the opening degree of the annular body consisting of the peripheral plate 602, the inner lining plate 603 and the connecting plate 604 to change along with the diameter of the crankshaft to be measured by rotating a screw 606; then, a driving motor of the friction wheel is started, so that the friction wheel drives the whole crankshaft locking device 6 to rotate, and the housing driving device 4 starts to rotate at the same speed (in the opposite direction) while the friction wheel rotates; heating device simulation compressor normal during operation inside temperature rise of compressor, make the viscosity of fluid be close to true behavior for lubricating oil heating, the annular box body on the upper portion of mount 2 is introduced to fluid that the sphere housing 1 will strike on it, fluid is collected and the measuring volume from the oil collecting port of annular box body bottom, the frequency of stroboscope and bent axle locking device 6's slew velocity phase-match, thereby observe the bent axle condition of oiling, the motion trail of fluid when the mount 2 high-speed camera takes notes bent axle oil, thereby the optimization improvement of the bent axle effect of oiling and bent axle for the compressor provides the test foundation.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, it should be noted that any modifications, equivalents and improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a compressor performance automation test equipment which characterized in that: comprises a spherical surface housing (1), a fixing frame (2), a cylindrical wall (3), a housing driving device (4), a stroboscope (5) and a crankshaft locking device (6), wherein the fixing frame (2) is cylindrical, the bottom of the fixing frame (2) is an arc bottom surface protruding outwards, an annular sliding groove is arranged at the top of the fixing frame (2), the spherical surface housing (1) is embedded in the annular sliding groove, the stroboscope (5) is arranged at the top of the fixing frame (2), the detachable cylindrical wall (3) is arranged at the middle part of the fixing frame (2), a rotating wheel of the housing driving device (4) arranged on the fixing frame (2) is in contact fit with the spherical surface housing (1), the crankshaft locking device (6) is arranged in the fixing frame (2), and the crankshaft locking device (6) comprises a support (601), an outer peripheral plate (602), a lining plate (603), a connecting plate (604), a connecting rod (605) and a screw rod (606), peripheral plate (602) are established in the inside of support (601) along the even interval of circumference, and the bottom of support (601) is equipped with the slide, install a plurality of friction pulleys in the slide, the driving motor of friction pulley installs on mount (2), and the one end of screw rod (606) and support (601) screw-thread fit, and the other end is articulated with the middle part of connecting rod (605), and the both ends of connecting rod (605) articulate on peripheral plate (602), is equipped with interior welt (603) between two adjacent peripheral plate (602), fixed mounting has connecting plate (604) on interior welt (603), and the both ends of connecting plate (604) are equipped with horizontal spout, cartridge uide pin in the horizontal spout, the uide pin sets firmly on peripheral plate (602), and peripheral plate (602) slide along horizontal spout through the uide pin.

2. The automatic testing equipment of compressor performance according to claim 1, characterized in that: the spherical surface encloser is characterized in that a plurality of spiral protrusions are arranged on the inner side wall surface of the spherical surface encloser (1), and the spiral direction of the spiral protrusions is opposite to the rotating direction of the spherical surface encloser (1).

3. An automatic testing device for the performance of a compressor, according to claim 1 or 2, characterized in that: a plurality of balls are arranged between the spherical surface housing (1) and the annular sliding groove.

4. An automatic testing device for the performance of a compressor, according to claim 1 or 3, characterized in that: the spherical surface housing (1) and the cylinder wall (3) are both made of transparent materials.

5. The automatic testing equipment for the performance of the compressor according to claim 1, characterized in that: the upper portion of mount (2) is annular box body, the top at annular box body is established to the annular spout, and the lower of annular box body bottom is equipped with the oil collecting port, is connected through many spliced poles between the arc bottom surface of mount (2) bottom and the annular box body.

6. The automatic testing equipment of compressor performance according to claim 1, characterized in that: and a heating device and an electromagnet are arranged at the bottom of the fixing frame (2).

7. The automatic testing equipment of compressor performance according to claim 1, characterized in that: the top of the fixed frame (2) is provided with a high-speed camera.

8. The automatic testing equipment of compressor performance according to claim 1, characterized in that: the outer surfaces of the rotating wheel and the friction wheel of the housing driving device (4) are provided with patterns for increasing friction force.

9. The automatic testing equipment of compressor performance according to claim 1, characterized in that: the surfaces of the peripheral plate (602) and the inner lining plate (603) are paved with elastic material layers.