CN218581784U

CN218581784U - Oiling effect detection device for crankshaft of piston compressor

Info

Publication number: CN218581784U
Application number: CN202221537853.5U
Authority: CN
Inventors: 李峰; 张云龙; 吴辉; 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: 2023-03-07
Anticipated expiration: 2032-05-20

Abstract

The utility model provides a piston compressor bent axle's effect detection device that oils, the inside at support (601) is established along the even interval of circumference in peripheral plate (602) of its bent axle locking device (6), the bottom of support (601) is equipped with the slide, install a plurality of friction pulleys in the slide, the one end and support (601) threaded connection of screw rod (606), the other end is articulated with the middle part of connecting rod (605), the both ends of connecting rod (605) articulate on peripheral plate (602), be equipped with interior welt (603) between two adjacent peripheral plate (602), fixed mounting has connecting plate (604) in interior welt (603), the both ends of connecting plate (604) are equipped with horizontal chute, the interior cartridge uide pin of horizontal chute, the uide pin peripheral board (602) sets firmly on horizontal chute, peripheral plate (602) slide along horizontal chute through the uide pin. The beneficial effects of the utility model reside in that: the oil applying speed and the oil applying amount test of crankshafts of different sizes can be suitable, the automation degree is high, the test effect is good, and the universality is high.

Description

Oiling effect detection device for crankshaft of piston compressor

Technical Field

The utility model relates to a refrigeration plant detects technical field, more specifically relates to an effect detection device that oils of piston compressor bent axle.

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 improve the economic benefit, manufacturers of small-sized piston compressors of refrigerators put more and more importance on delivery inspection work of the refrigeration compressor of the refrigerator. 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.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: to the problem that prior art exists, provide a piston compressor bent axle's effect detection device that oils, 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 volume of testing of oiling, and the test effect is good, and the commonality is strong.

The to-be-solved technical problem of the utility model adopts following technical scheme to realize: the oiling effect detection device for the crankshaft of the piston compressor 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 upper part of the fixing frame is an annular box body, an oil collecting port is arranged at the lowest part of the bottom of the annular box body, the bottom of the fixing frame is an arc-shaped bottom surface, the arc-shaped bottom surface is connected with the annular box body through a plurality of connecting columns, an annular chute is arranged at the top of the annular box body, the spherical cover shell is embedded in the annular chute, the stroboscope is arranged at the top of the fixing frame, the middle part of the fixing frame is provided with a detachable cylinder wall, a rotating wheel of the cover shell driving device on the fixing frame is in contact fit with the spherical cover shell, a plurality of spiral bulges are arranged on the inner side wall of the spherical cover shell, the spiral direction of the spiral protrusions is opposite to the rotating direction of the spherical housing, 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 arranged inside the support at intervals along the circumference, a slide way is arranged at the bottom of the support, a plurality of friction wheels are arranged in the slide way, 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 outer peripheral plate, the inner lining plate is arranged between every two adjacent outer peripheral plates, the connecting plate is fixedly arranged 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 are fixedly arranged on the outer peripheral plates, and the outer peripheral plates slide along the horizontal sliding grooves through the guide pins.

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

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

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 fixing 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 beneficial effects of the utility model are 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 needed to be used in the description of the embodiments or the prior art will be briefly described below, 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 inventive exercise.

Fig. 1 is a schematic structural diagram of the crankshaft locking device of the present invention.

Fig. 2 is a front view of the crankshaft locking device of the present invention.

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

Fig. 4 is a partially enlarged view of the junction of the peripheral plate, the inner lining plate and the connecting plate of the present invention.

Fig. 5 is a schematic view of the overall structure of the present invention.

Fig. 6 is a schematic view of the internal structure of the present invention after the spherical surface housing and the cylinder wall are hidden.

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

The mark in the figure is: 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, 606-screw rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, 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 for purposes of illustration only and are not intended to limit the invention.

As shown in fig. 5 and 6, the oiling effect detection device for the crankshaft of the piston 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 force generated when the spherical surface housing 1 rotates in the annular sliding groove. Stroboscope 5 is established at the top of mount 2, and 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 oiled 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. 1-4, 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 tested 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 ensure that the opening degree of the annular body consisting of the peripheral plate 602, the inner lining plate 603 and the connecting plate 604 is changed along with the diameter of the crankshaft to be tested 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; the heating device simulates the temperature rise inside the compressor when the compressor normally works, the viscosity of oil is close to the real working condition for lubricating oil heating, the oil collided on the spherical housing 1 is introduced into the annular box body on the upper part of the fixing frame 2, the oil is collected from the oil collecting port at the bottom of the annular box body and the volume is measured, the frequency of the stroboscope is matched with the rotating speed of the crankshaft locking device 6, so that the oiling condition of the crankshaft is observed, the motion track of the oil is recorded by the high-speed camera on the fixing frame 2 when the crankshaft oils, and a test basis is provided for crankshaft oiling effect detection and crankshaft optimization improvement of the compressor.

The above description is only exemplary of the present invention and should not be taken as limiting, and all changes, equivalents, and improvements made within the spirit and principles of the present invention should be understood as being included in the scope of the present invention.

Claims

1. The utility model provides a piston compressor bent axle's effect detection device that oils which characterized in that: the device comprises a spherical cover shell (1), a fixing frame (2), a cylinder wall (3), a cover shell driving device (4), a stroboscope (5) and a crankshaft locking device (6), wherein the fixing frame (2) is cylindrical, the upper part of the fixing frame (2) is an annular box body, the lowest part of the bottom of the annular box body is provided with an oil collecting port, the bottom of the fixing frame (2) is an arc bottom surface, the arc bottom surface is connected with the annular box body through a plurality of connecting columns, the top of the annular box body is provided with an annular chute, the spherical cover shell (1) is embedded in the annular chute, the stroboscope (5) is arranged at the top of the fixing frame (2), the middle part of the fixing frame (2) is provided with the detachable cylinder wall (3), a rotating wheel of the cover shell driving device (4) on the fixing frame (2) is in contact fit with the spherical cover shell (1), a plurality of spiral protrusions are arranged on the inner side wall surface of the spherical cover shell (1), the spiral direction of the spiral protrusions is opposite to the rotating direction of the spherical cover shell (1), the crankshaft locking device (6) is arranged in the inner part of the spherical cover shell (2), the crankshaft locking device (6) comprises a crankshaft support (601), an outer lining plate (602), a connecting plate (603), a peripheral plate (604), a connecting plate (604) and a connecting plate (601) are uniformly arranged at intervals along the bottom of a slideway (601), the novel electric heating furnace is characterized in that a plurality of friction wheels are installed in the slide ways, driving motors of the friction wheels are installed on the fixing frames (2), one end of each screw rod (606) is in threaded fit with the support (601), the other end of each screw rod is hinged to the middle of the corresponding connecting rod (605), two ends of each connecting rod (605) are hinged to the corresponding peripheral plate (602), an inner lining plate (603) is arranged between every two adjacent peripheral plates (602), each inner lining plate (603) is fixedly provided with a connecting plate (604), horizontal sliding grooves are formed in two ends of each connecting plate (604), guide pins are inserted into 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.

2. The oiling effect detection device for a piston compressor crankshaft according to claim 1, wherein: a plurality of balls are arranged between the spherical surface housing (1) and the annular sliding groove.

3. The oiling effect detection device for a piston compressor crankshaft according to claim 1 or 2, characterized in that: the spherical surface housing (1) and the cylinder wall (3) are both made of transparent materials.

4. The oiling effect detection device for a piston compressor crankshaft according to claim 1, wherein: and a heating device and an electromagnet are arranged at the bottom of the fixing frame (2).

5. The oiling effect detection device for a piston compressor crankshaft according to claim 1, wherein: the top of the fixed frame (2) is provided with a high-speed camera.

6. The oiling effect detection device for a piston compressor crankshaft according to claim 1, wherein: 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.

7. The oiling effect detection device for the piston compressor crankshaft 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.