Detection device, detection system and detection method for a compressor suction port

Abstract

The present application relates to the technical field of compressor detection, and provides a detection device, a detection system and a detection method for a suction port of a compressor, wherein the detection device comprises a rack, a lifting mechanism capable of lifting along the rack, a cylinder fixed to the lifting mechanism, the cylinder having a piston rod capable of reciprocating along a first direction perpendicular to the lifting stroke of the lifting mechanism, and a detection mechanism connected to a free end of the piston rod, the detection mechanism having an elastic displacement member capable of moving along the first direction, one end of the elastic displacement member close to the cylinder being connected to a ground wire, and the other end of the elastic displacement member away from the cylinder being provided with a conductive block, the elastic displacement member driving the conductive block to move along the first direction with the reciprocating movement of the piston rod. The present application can realize the detection of the suction port of the compressor, prevent foreign matters from entering the suction port, and realize foreign matter protection for the whole compressor.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of compressor detection, in particular to a detection device, system and method for a suction port of a compressor. BACKGROUND

[0002] When assembling a compressor, parts need to be welded together, and the compressor is usually sent into a welding device for welding, such as three-six point welding, up-down circumferential welding, etc. When the compressor is welded in the welding device, if the suction port of the compressor is not sealed, welding spatter foreign matter is easy to adhere to the suction port or enter the inside of the compressor through the suction port, causing the compressor to stall.

[0003] Therefore, before the compressor enters the welding device, the suction port needs to be sealed by an insulating seat to prevent foreign matter from entering. However, in practice, it is often found that the insulating seat is forgotten or falls off during the process of conveying the compressor to the welding device. At this time, if the compressor is still sent into the welding device for welding without knowing, foreign matter will enter the suction port, affecting the performance of the compressor.

[0004] Therefore, it is necessary to detect the suction port of the compressor before it enters the welding device.

[0005] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present application, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. SUMMARY

[0006] In view of the problems in the prior art, the present application provides a detection device, system and method for a suction port of a compressor to realize detection of the suction port of the compressor, prevent foreign matter from entering the suction port, and realize foreign matter protection of the compressor.

[0007] According to one aspect of the present application, a detection device for a suction port of a compressor is provided, comprising: a rack; a lifting mechanism capable of lifting along the rack; a cylinder fixed to the lifting mechanism, the cylinder having a piston rod capable of reciprocating along a first direction perpendicular to the lifting stroke of the lifting mechanism; and a detection mechanism connected to the free end of the piston rod, the detection mechanism having an elastic displacement member capable of moving along the first direction, one end of the elastic displacement member close to the cylinder being connected to a ground wire, the other end of the elastic displacement member away from the cylinder being provided with a conductive block, the elastic displacement member driving the conductive block to move along the first direction with the reciprocating movement of the piston rod.

[0008] Preferably, in the detection device, the elastic displacement member comprises a moving rod arranged in a linear bearing, two ends of the moving rod are connected to the grounding wire and the conductive block respectively, and a spring is sleeved on the moving rod and is limited between the conductive block and the linear bearing.

[0009] Preferably, in the detection device, an end of the moving rod connected to the grounding wire is sleeved with a limiting member with an outer diameter larger than an inner diameter of the linear bearing.

[0010] Preferably, in the detection device, the detection mechanism is fixedly connected to a free end of the piston rod through a fixed block, and the linear bearing is fixedly arranged in a through hole of the fixed block.

[0011] Preferably, in the detection device, the fixed block is made of bakelite.

[0012] Preferably, in the detection device, the rack comprises two guide columns arranged in parallel, a base, and a top plate, wherein lower ends of the two guide columns are fixedly connected to the base through a pair of first flanges, and upper ends of the two guide columns are fixedly connected to the top plate.

[0013] Preferably, in the detection device, the lifting mechanism comprises a bearing plate, a gas cylinder arranged on the bearing plate, and a lifting rod, wherein the bearing plate is arranged through the guide columns and is fixedly connected to the guide columns through a pair of second flanges, and the lifting rod is arranged through the top plate and the bearing plate to drive the bearing plate to lift relative to the top plate along the guide columns.

[0014] Preferably, in the detection device, an end of the lifting rod protruding from the top plate is provided with an operating handle.

[0015] According to another aspect of the present application, a detection system for a suction port of a compressor is provided, comprising a conveying tray for conveying a compressor to be detected, the detection device as described above for detecting the suction port of the compressor through the conductive block, and a display device for outputting a detection result.

[0016] According to another aspect of the present application, a detection method for a suction port of a compressor is provided, applied to the detection system as described above, and the detection method comprises the following steps: conveying the compressor to a detection position through the conveying tray; pushing out a piston rod by a cylinder of the detection device, so that the conductive block elastically contacts the suction port of the compressor to detect whether the suction port is provided with an insulating seat ring; if the conductive block is conducted after contacting the suction port, outputting a detection failure result through the display device; and if the conductive block is not conducted after contacting the suction port, outputting a detection success result through the display device, and conveying the compressor to a next stroke through the conveying tray.

[0017] The present application has at least the following advantages compared with the prior art:

[0018] The detection mechanism is driven to lift by the lifting mechanism, so that the height of the conductive block can be adjusted to adapt to the height of the suction port of the compressor; the piston rod is guided to reciprocate by the cylinder, so that the conductive block contacts the suction port to perform detection; the contact between the conductive block and the suction port is buffered by the elastic displacement member to protect the suction port; thus, the present application can realize detection of the suction port of the compressor, prevent foreign matter from entering the suction port, and realize foreign matter protection of the compressor.

[0019] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the application. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained from these drawings without creative labor for those skilled in the art.

[0021] Figure 1 And Figure 2 Structure schematic diagram showing two perspectives of the detection device in the embodiment of the present application;

[0022] Figure 3 Enlarged schematic diagram showing the detection mechanism in the embodiment of the present application;

[0023] Figure 4 Schematic diagram showing the detection device entering the detection state in the embodiment of the present application; and

[0024] Figure 5 Schematic diagram showing the detection device entering the idle state in the embodiment of the present application. DETAILED DESCRIPTION

[0025] Example implementations will now be described more fully with reference to the accompanying drawings. Example implementations, however, can be implemented in many different forms and should not be construed as limited to the implementations set forth herein. Rather, these implementations are provided as example (s) so that this disclosure will be thorough and complete, and will fully convey the concept of example implementation (s) to those skilled in the art. Like reference numerals refer to like elements throughout the several views of the drawings and repeated description is omitted for clarity.

[0026] Figure 1 And Figure 2 Main structure of the detection device in the embodiment is shown from two perspectives, Figure 3 Enlarged structure of the detection mechanism in the detection device is shown, combinedFigures 1 to 3 As shown in the figure, the detection device for the suction port of the compressor in the embodiment mainly comprises: a rack 1; a lifting mechanism 2, which can be lifted along the rack 1; a cylinder 3, which is fixed to the lifting mechanism 2, and has a piston rod 31 that can reciprocate along a first direction “x” perpendicular to the lifting stroke “y” of the lifting mechanism 2; and a detection mechanism 4, which is connected to the free end of the piston rod 31, and has an elastic displacement piece 41 that can move along the first direction “x”, one end of the elastic displacement piece 41 close to the cylinder 3 is connected to a ground wire 42, and the other end away from the cylinder 3 is provided with a conductive block 43, which moves along the first direction “x” driven by the elastic displacement piece 41 reciprocating with the piston rod 31.

[0027] The lifting mechanism 2 can drive the cylinder 3 and the detection mechanism 4 to lift relative to the rack 1, so as to adjust the height of the conductive block 43, and make the height of the conductive block 43 adapt to the height of the suction port of the compressor, so as to smoothly realize detection. The cylinder 3 can guide the piston rod 31 to reciprocate along the first direction “x”, and when the piston rod 31 is pushed out, it pushes the conductive block 43 to contact the suction port for detection, and when the piston rod 31 is retracted, it drives the conductive block 43 to move away from the suction port. During the contact between the conductive block 43 and the suction port of the compressor, due to the elastic displacement of the elastic displacement piece 41, the contact between the conductive block 43 and the suction port is buffered, so as to protect the suction port and also to strengthen the contact between the conductive block 43 and the suction port, and realize conduction detection. Specifically, when the piston rod 31 is pushed out and pushes the conductive block 43 to contact the suction port, the elastic displacement piece 41 drives the conductive block 43 to retract due to the reaction force of the suction port, so as to realize contact buffering and not cause large impact force to the suction port; when the conductive block 43 retracts, the elastic displacement piece 41 generates compression force to continue pushing the conductive block 43, so as to strengthen the contact between the conductive block 43 and the suction port, and make the conductive block 43 realize conduction detection on the suction port. During conduction detection, if the suction port is not provided with an insulating seat ring, the conductive block 43 is in conduction; if the suction port is provided with an insulating seat ring, the conductive block 43 is not in conduction. According to whether the conductive block 43 is in conduction or not, it can be judged whether the suction port of the compressor is provided with an insulating seat ring, so as to realize suction port detection, prevent foreign matters from entering the suction port, and realize foreign matter protection for the compressor.

[0028] In one embodiment, the elastic displacement member 41 comprises a moving rod 411, which is arranged in a linear bearing 44, and two ends of the moving rod 411 are connected to the grounding wire 42 and the conductive block 43 respectively; and a spring 412, which is sleeved on the moving rod 411 and is limited between the conductive block 43 and the linear bearing 44. The linear bearing 44 cooperates with the moving rod 411 to guide the linear movement of the moving rod 411 along the first direction "x". During the movement of the moving rod 411, the spring 412 is stretched and compressed to realize the elastic displacement of the conductive block 43. Further, the end of the moving rod 411 connected to the grounding wire 42 is sleeved with a limiting member 45, which has an outer diameter larger than the inner diameter of the linear bearing 44. The limiting member 45 is used to limit the movement stroke of the end of the moving rod 411 connected to the grounding wire 42, so that the moving rod 411 will not fall out of the linear bearing 44.

[0029] The elastic displacement member 41 is connected to the cylinder 3 through a fixing block 46, that is, the detection mechanism 4 is fixedly connected to the free end of the piston rod 31 through the fixing block 46, and the linear bearing 44 is fixedly arranged in a through hole of the fixing block 46. The material of the fixing block 46 can be bakelite, which can realize insulation and stable connection between the detection mechanism 4 and the cylinder 3.

[0030] Figure 4 a schematic diagram showing the detection device entering the detection state, Figure 5 a schematic diagram showing the detection device entering the idle state. Referring to Figure 4 As shown in the process of the detection device entering the detection state, the cylinder 3 pushes out the piston rod 31, and the piston rod 31 drives the conductive block 43 to move forward through the fixing block 46 and the moving rod 411. At this time, the spring 412 is in a contracted state, and exerts a force in the "x1" direction on the conductive block 43 to push the conductive block 43 to the suction port of the compressor and contact the suction port for detection. In the process of the detection device entering the idle state, the piston rod 31 is retracted to drive the conductive block 43 away from the suction port. At this time, the spring 412 is in a stretched state, and exerts a force in the "x2" direction on the conductive block 43 to pull the conductive block 43 away from the suction port. During the stretching and contraction of the spring 412, the moving rod 411 is displaced along the linear bearing 44, and the displacement stroke is limited between the spring 412 and the limiting member 45.

[0031] Continuing to combine Figures 1 to 3In one embodiment, the rack 1 comprises two guide columns 11 arranged in parallel, a base 12, and a top plate 14. The lower ends of the two guide columns 11 are fixedly connected to the base 12 through a pair of first flanges 13. The upper ends of the two guide columns 11 are fixedly connected to the top plate 14, respectively. The number of the guide columns 11 is not limited to two, and other numbers of guide columns 11 can be arranged according to the detection needs. The base 12 is used to fix the entire detection device. The guide columns 11 can be fixed to the base 12 through the first flanges 13 or by welding. The two ends of the guide columns 11 are fixedly connected to the base 12 and the top plate 14, respectively, so as to realize the structural stability of the guide columns 11.

[0032] In one embodiment, the lifting mechanism 2 comprises a bearing plate 21, a pair of second flanges 22, and a lifting rod 23. The guide columns 11 pass through the bearing plate 21 and are fixedly connected to the bearing plate 21 through the pair of second flanges 22. The gas cylinder 3 is arranged on the bearing plate 21. The lifting rod 23 passes through the top plate 14 and the bearing plate 21 to drive the bearing plate 21 to ascend or descend along the guide columns 11 relative to the top plate 14. The lifting rod 23 is connected to the top plate 14 through a first fastener 24 and connected to the bearing plate 21 through a second fastener 25. The lifting rod 23 can be a cylindrical rod or a threaded rod. When the lifting is needed, the first fastener 24 and the second flanges 22 are loosened, the bearing plate 21 is lifted or lowered through the lifting rod 23, the height of the gas cylinder 3 is adjusted, and then the height of the conductive block 43 is adjusted. When the conductive block 43 is adjusted to the appropriate height, the first fastener 24 and the second flanges 22 are fastened to fix the position between the lifting mechanism 2 and the rack 1. The end of the lifting rod 23 extending out of the top plate 14 can be provided with an operating handle 230 to facilitate the lifting of the lifting rod 23. In other embodiments, the lifting rod 23 can also be driven to lift by a motor.

[0033] The embodiment of the present application also provides a detection system for a suction port of a compressor, which comprises the detection device described in any of the above embodiments, a conveying tray for conveying the compressor to be detected, and a display device for outputting the detection result. The detection process of the detection system when detecting the suction port of the compressor specifically comprises: conveying the compressor to the detection position through the conveying tray, at this time, whether the height of the suction port of the compressor is adapted to the height of the conductive block of the detection device can be checked, and if not, the height of the conductive block is adjusted through the lifting mechanism of the detection device; the piston rod is pushed out by the cylinder of the detection device, so that the conductive block elastically contacts the suction port of the compressor, so as to detect whether the suction port is provided with an insulating seat ring; if the conductive block is conducted after contacting the suction port, it indicates that the suction port is not provided with an insulating seat ring, so the display device outputs the result of the detection failure; if the conductive block is not conducted after contacting the suction port, it indicates that the suction port is provided with an insulating seat ring, so the display device outputs the result of the detection success, and the conveying tray conveys the compressor to the next stroke. When it is detected that the suction port is not provided with an insulating seat ring, an alarm prompt can also be sent, and the operation of the conveying tray is stopped, so that the relevant personnel check the suction port of the compressor, insert the insulating seat ring to remove the alarm and release, and prevent the compressor without the insulating seat ring from entering the welding equipment for welding. When it is detected that the suction port of the compressor is normally provided with an insulating seat ring, the compressor is automatically conveyed to the next stroke and enters the welding equipment for welding. Through the above-mentioned manner, the detection of the insulating seat ring of the suction port of the compressor is realized, so that the foreign matter in the suction port is prevented from entering when the compressor enters the welding equipment for welding, and the foreign matter protection of the compressor is realized.

[0034] The above is a further detailed description of the present application in combination with specific preferred embodiments, and the specific implementation of the present application cannot be limited to these descriptions. For ordinary skilled persons in the technical field to which the present application belongs, some simple deductions or replacements can be made without departing from the concept of the present application, and all of them should be regarded as falling within the protection scope of the present application.

Claims

1. A detection device for a suction port of a compressor, characterized in that, The detection device comprises: a rack comprising two guide columns arranged in parallel, a base fixedly connected to the lower ends of the two guide columns through a pair of first flanges, and a top plate fixedly connected to the upper ends of the two guide columns; a lifting mechanism capable of lifting along the rack, the lifting mechanism comprising a bearing plate fixedly connected to the guide columns through a pair of second flanges and provided with a gas cylinder, a lifting rod penetrating through the top plate and the bearing plate to drive the bearing plate to lift along the guide columns relative to the top plate, and an operating handle provided at the end of the lifting rod extending out of the top plate; a gas cylinder fixed to the lifting mechanism, the gas cylinder having a piston rod capable of reciprocating in a first direction perpendicular to the lifting stroke of the lifting mechanism; and a detection mechanism fixedly connected to the free end of the piston rod through an insulating fixed block, the detection mechanism having an elastic displacement member capable of moving in the first direction, the elastic displacement member having one end close to the gas cylinder connected to a ground wire and the other end away from the gas cylinder provided with a conductive block, the elastic displacement member driving the conductive block to move in the first direction along with the reciprocating movement of the piston rod, and the conductive block being used to contact the suction port of the compressor to be detected during detection. The elastic displacement member comprises a moving rod penetrating through a linear bearing fixedly penetrating through a through hole in the fixed block, two ends of the moving rod being respectively connected to the ground wire and the conductive block, and one end of the moving rod connected to the ground wire being sleeved with a limiting member having an outer diameter greater than the inner diameter of the linear bearing; and a spring sleeved with the moving rod and limited between the conductive block and the linear bearing.

2. The detection device of claim 1, wherein, The fixed block is made of bakelite.

3. A system for detecting a suction port of a compressor, the system comprising: The detection device comprises: a conveying tray used to convey the compressor to be detected; the detection device of claim 1 or 2 is used to detect the suction port of the compressor through the conductive block; and a display device used to output the detection result.

4. A method of detecting a suction port of a compressor, applied to the detection system according to claim 3, characterized in that, The detection method comprises: conveying the compressor to a detection position through the conveying tray; pushing out the piston rod of the gas cylinder of the detection device to make the conductive block elastically contact the suction port of the compressor to detect whether the suction port is provided with an insulating seat ring; if the conductive block is conducted after contacting the suction port, outputting a detection failure result through the display device; and if the conductive block is not conducted after contacting the suction port, outputting a detection pass result through the display device and conveying the compressor to the next stroke through the conveying tray.

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