Internal exhaust coil pipe assembly for compressor and detection device and identification method of internal exhaust coil pipe assembly

Abstract

The invention discloses an inner exhaust coil assembly for a compressor and a detection device and an identification method thereof, and the detection device comprises an inlet end detection surface which is used for connecting and verifying an exhaust silencing cover and an inlet section; one side of the inlet end detection surface is provided with a first U-shaped binding surface which is connected with and verifies the first U-shaped arc section; a second U-shaped binding surface is arranged on one side, far away from the first U-shaped binding surface, of the detection device and is used for connecting and verifying the second U-shaped arc section; the edge of the inlet end detection surface is provided with a bidirectional detection surface of a step structure, and the bidirectional detection surface is used for connecting and verifying the connection section. The side edge of the second U-shaped binding surface is also provided with an outlet end detection structure, and the outlet end detection structure is connected with and verifies the outlet section. A space size which is inconvenient to observe and measure is converted into a measurable, comparable and correctable detection device, the size and angle of the inner exhaust coil pipe are easy to measure, and the precision of a measured value is high.

Description

Technical Field

[0001] The invention relates to the technical field of compressor production, and in particular to an internal exhaust coil assembly for a compressor and a detection device and an identification method thereof. Background Art

[0002] During the current production process of reciprocating piston compressors, the assembly workshop needs to assemble internal exhaust coils. After being compressed by the piston, the internal exhaust coils transport the high-temperature and high-pressure refrigerant to the exhaust pipe, and then transport the refrigerant to the condenser and other refrigeration components of the refrigerator, allowing the refrigerant to circulate in the refrigeration system, thereby ensuring continuous refrigeration of the refrigerator system. At the same time, the internal exhaust coil is generally a bent pipe structure. Compared with the intuitive natural frequency, the bent pipe structure is relatively lower, and can also play a certain role in reducing vibration and noise, and also avoid the internal exhaust coil from being broken due to hard impact during transportation and user use. However, the internal exhaust coil is deformed due to a certain flexibility in production, transportation, and assembly. Once the coil is deformed, the workload of employees in calibration is increased. More importantly, many coils have spatially distributed sizes, which are not easy to identify after deformation. After being assembled in the pump body, it is easy to deviate the pump body, causing the pump body to hit the shell. At the same time, due to the incorrect position, the deformed internal exhaust coil acts on the pump body, which will deviate from the equilibrium position, and also increases the risk of unbalanced force and noise generated by the entire machine in the refrigeration system. In addition, the deformation of the internal exhaust coil will also cause the natural frequency of the internal exhaust coil itself to change, increasing the risk of some low-frequency noise. In short, the existing internal exhaust coil has the risk of incorrect deformation position, which leads to difficulties in employee calibration, low work efficiency, and the risk of shell collision and noise. Summary of the invention

[0003] The purpose of the present invention is to provide an internal exhaust coil assembly for a compressor and a detection device and identification method thereof in view of the problems existing in the prior art.

[0004] To achieve the above object, the technical solution adopted by the present invention is: According to one aspect of the present invention, there is provided an internal exhaust coil assembly for a compressor, comprising an exhaust silencer cover and an internal exhaust coil connected to the exhaust silencer cover, wherein the internal exhaust coil comprises an inlet section connected to the exhaust silencer cover, the inlet section being connected to a first bending portion, the first bending portion being connected to a first U-shaped arc segment, the first U-shaped arc segment being connected to a second U-shaped arc segment after being bent and turned multiple times through a connecting section, and the end of the second U-shaped arc segment being connected to an outlet section.

[0005] Furthermore, the inlet section includes an inserting portion and an arc-shaped turning portion, the inserting portion is plugged into the exhaust silencer cover, and the arc-shaped turning portion is connected to the first bending portion bent downward.

[0006] Furthermore, the connecting section includes a first horizontal section, one end of the first horizontal section is horizontally bent and connected to a second horizontal section, the second horizontal section is connected to the second U-shaped arc section, the other end of the first horizontal section is connected to a second bending portion, and the second bending portion is connected to the first U-shaped arc section.

[0007] According to a second aspect of the present invention, there is provided a detection device for an internal exhaust coil assembly for a compressor, wherein the detection device is of a modular structure and comprises an inlet end detection surface, wherein the inlet end detection surface is used to connect and verify the exhaust silencer cover and the inlet section; a first U-shaped fitting surface is provided on one side of the inlet end detection surface, wherein the first U-shaped fitting surface is connected to and verifies the first U-shaped arc segment; a second U-shaped fitting surface is provided on the side of the detection device away from the first U-shaped fitting surface, wherein the second U-shaped fitting surface is used to connect and verify the second U-shaped arc segment; a step structure bidirectional detection surface is provided at the edge of the inlet end detection surface, wherein the two ends of the step structure bidirectional detection surface extend to the first U-shaped fitting surface and the second U-shaped fitting surface respectively, wherein the step structure bidirectional detection surface is used to connect and verify the connecting section; an outlet end detection structure is also provided on the side edge of the second U-shaped fitting surface, wherein the outlet end detection structure is connected to and verifies the outlet section.

[0008] Furthermore, the inlet end detection surface is provided with a silencer cover limiting hole, and the silencer cover limiting hole is provided with an inlet section insertion depth detection hole; the inlet end detection surface is also provided with an entry end fitting boss near the silencer cover limiting hole.

[0009] Furthermore, a first U-shaped transition groove is provided at the transition between the inlet end detection surface and the first U-shaped fitting surface, and two ends of the first U-shaped transition groove extend toward the inlet end detection surface and the first U-shaped fitting surface respectively; a second U-shaped transition groove is provided at the transition between the step structure bidirectional detection surface and the first U-shaped fitting surface, and two ends of the second U-shaped transition groove extend toward the horizontal plane of the step structure bidirectional detection surface and the first U-shaped fitting surface respectively; a third U-shaped transition groove is provided at the transition between the step structure bidirectional detection surface and the second U-shaped fitting surface, and two ends of the third U-shaped transition groove extend toward the horizontal plane of the step structure bidirectional detection surface and the second U-shaped fitting surface respectively.

[0010] Furthermore, the first U-shaped fitting surface and the second U-shaped fitting surface are respectively provided with vertical depth scale lines and U-shaped angle scale lines; the outlet detection structure is also provided with vertical outlet length scale lines.

[0011] Furthermore, the first U-shaped fitting surface and the second U-shaped fitting surface are respectively provided with a bending pipe positioning hole at the U-shaped position, and the bending pipe positioning hole is used to connect a pipe bender to correct the first U-shaped arc segment or the second U-shaped arc segment that fails the inspection.

[0012] Furthermore, the detection device is provided with a first U-shaped groove on the first U-shaped fitting surface that conforms to the first U-shaped arc segment, and a second U-shaped groove on the second U-shaped fitting surface that conforms to the second U-shaped arc segment, and the depth of the first U-shaped groove and the second U-shaped groove is not less than 1 / 2 of the diameter of the inner exhaust coil.

[0013] In a third aspect of the present invention, there is provided an identification method using a detection device for an inner exhaust coil assembly for a compressor, the identification method comprising the following steps: Place the inner exhaust coil assembly into the detection device, and place the exhaust silencer cover and the inlet section on the inlet end detection surface; observe the fit between the first U-shaped arc segment and the first U-shaped fitting surface, the fit between the connecting section and the horizontal connecting plane and the vertical limiting wall of the double-sided detection surface of the step structure, and the fit between the second U-shaped arc segment and the second U-shaped fitting surface; observe whether the outlet section fits with the outlet detection structure, and whether the length of the outlet section is consistent with the outlet length scale line at the outlet detection structure; if not, apply external force to the inner exhaust coil to confirm whether the inner exhaust coil is completely fitted with each surface of the detection device; Using the U-shaped angle scales and the depth scales on the first U-shaped bonding surface and the second U-shaped bonding surface, respectively detect the consistency of the angles of the first U-shaped arc segment and the second U-shaped arc segment with the U-shaped angle scales, and detect the consistency of the angles of the first U-shaped arc segment and the second U-shaped arc segment with the depth scales; If the fitting, angle and depth of the inner exhaust coil meet the requirements, it is a qualified product; if the angle and depth of the first U-shaped arc segment and the second U-shaped arc segment of the inner exhaust coil do not meet the requirements, the first U-shaped arc segment or the second U-shaped arc segment is corrected by using the bending positioning holes on the first U-shaped fitting surface and the second U-shaped fitting surface and the matching bending tool to meet the requirements.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The detection device can effectively and quickly detect the various spatial dimensions, positions and shapes of the internal exhaust coil assembly through the inlet end detection surface, the first U-shaped fitting surface, the second U-shaped fitting surface, the step structure bidirectional detection surface and the outlet end detection structure, and convert the spatial dimensions that are inconvenient to observe and measure into a measurable, comparable and correctable detection device. The size and angle of the internal exhaust coil are easy to measure, and the measurement value is highly accurate; 2. The detection device is small in size, light in weight, and can be moved freely. According to the internal exhaust coil forming process and the forming requirements of each process, it is made into size and space modules and the size and space position of each process are detected by splicing the modules. It can not only be used for the factory forming detection of the internal exhaust coil detection device, but also can be modularly adjusted according to the requirements of the size and space position of each process, so as to accurately detect the size and space position of each process and obtain the correct size, or make corresponding modules for each process of the internal exhaust coil. The position detection device ensures that the size and position of each process meet the requirements; 3. When the inner exhaust coil is unqualified at the compressor assembly site, the exhaust coil can be placed in the detection device, and the inner exhaust coil is corrected by using the bending positioning hole, the bending device, and various U-shaped grooves and other correction structures, which quickly and effectively ensures that the unqualified inner exhaust coil is used in time, with high efficiency, avoiding various abnormal faults such as impact and noise caused by unqualified coils and causing the machine to go offline; 4. The detection device and identification method can ensure the consistency of the inner exhaust coil with the drawing, not only avoiding impact or noise, but also the inner exhaust coil detected by the inner exhaust coil detection device, because the spatial position is consistent with the design, effectively ensures that the inherent mode of the batch-produced coil is consistent with the design, reduces the modal change caused by the difference in coil position, and greatly improves product consistency. At the same time, because the batch-produced inner exhaust coil is highly consistent, employees do not need to perform unnecessary actions when calibrating the tube, the calibration actions are few and standardized, and the production efficiency is high, which further improves the consistency and stability of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of an inner exhaust coil assembly for a compressor of the present invention; Figure 2 It is a front view structural schematic diagram of an inner exhaust coil assembly for a compressor of the present invention; Figure 3 It is a schematic diagram of the structure of the detection device of the present invention; Figure 4 It is a schematic diagram of the structure of another side of the detection device of the present invention; Figure 5 This is a schematic diagram of a preliminary detection structure for detecting the position compliance of an inner exhaust coil according to the present invention; Figure 6This is a schematic diagram of a preliminary detection structure for detecting compliance of another U-shaped position of the inner exhaust coil position according to the present invention; Figure 7 It is a schematic diagram of the detection structure of the height compliance of the position of the inner exhaust coil by means of a scale detection according to the present invention; Figure 8 It is a schematic diagram of the height compliance detection structure of another U-shaped position of the inner exhaust coil by the scale detection of the present invention; Fig. 9 It is a schematic diagram of the position of the limiting hole of the muffler cover on the detection device of the present invention; Fig.10 A schematic diagram of the position of the bend pipe positioning hole on the detection device of the present invention; Fig.11 It is a structural schematic diagram of the pipe bender of the present invention; Fig.12 It is a structural schematic diagram of correcting and adjusting the position of the inner exhaust disk on the detection device of the present invention; Fig.13 This is a schematic diagram showing the structure of the first U-shaped groove in the detection device of the present invention; Fig.14 This is a schematic diagram showing the structure of the second U-shaped groove in the detection device of the present invention; Fig.15 This is a schematic diagram of the final conformity structure of the coil and the detection device after passing through the shaping tooling of the present invention; In the figure: 1, exhaust silencer cover; 2, inner exhaust coil; 201, inlet section; 2011, insertion part; 2012, arc-shaped turning part; 202, first bending part; 203, first U-shaped arc section; 204, connecting section; 2041, first horizontal section; 2042, second horizontal section; 2043, second bending part; 205, second U-shaped arc section; 206, outlet section; 3, inlet end detection surface; 4, first U-shaped fitting surface; 5, second U-shaped fitting surface; 6, step structure two-way detection surface; 601, horizontal connecting Connecting plane; 602, vertical limiting wall; 7, limiting hole for silencer cover; 8, insertion depth detection hole for entrance section; 9, fitting boss at entrance end; 10, first U-shaped transition groove; 11, second U-shaped transition groove; 12, depth scale line; 13, U-shaped position angle scale line; 14, outlet length scale line; 15, elbow positioning hole; 16, handle; 17, locking pin; 18, contour sleeve; 19, elbow R groove; 20, elbow positioning pin; 21, first U-shaped groove; 22, second U-shaped groove; 23, third U-shaped transition groove. DETAILED DESCRIPTION

[0016] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "middle", "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0018] like Figure 1 and Figure 2 As shown, an internal exhaust coil assembly for a compressor includes an exhaust silencer cover 1, and an internal exhaust coil 2 connected to the exhaust silencer cover 1, the internal exhaust coil 2 includes an inlet section 201 connected to the exhaust silencer cover 1, the inlet section 201 is connected to a first bending portion 202, the first bending portion 202 is connected to a first U-shaped arc segment 203, the first U-shaped arc segment 203 is connected to a second U-shaped arc segment 205 after multiple bending and turning through a connecting section 204, and the end of the second U-shaped arc segment 205 is connected to an outlet section 206.

[0019] The inner exhaust coil assembly can extend the exhaust path, change the airflow direction multiple times, and significantly reduce the exhaust noise and airflow fluctuations by setting the first bending portion 202, the first U-shaped arc segment 203, and the second U-shaped arc segment 205. After the inner exhaust coil assembly is inspected and calibrated by the detection device, it can ensure that the size and shape of the coil meet the design requirements, and there will be no misplaced and deformed coils during the assembly stage, reducing the noise problem caused by the deformation of the inner exhaust coil, so that the inner exhaust coil assembly can give full play to its own vibration reduction and noise reduction effects.

[0020] Furthermore, the inlet section 201 includes an inserting portion 2011 and an arc-shaped turning portion 2012 , the inserting portion 2011 is plugged into the exhaust silencer cover 1 , and the arc-shaped turning portion 2012 is connected to the first bending portion 202 that is bent downward.

[0021] Specifically, the end of the inserting portion 2011 will pass through the exhaust silencer cover 1 downwards and extend from the bottom by a distance H; the arcuate turning portion 2012 will bend in space, and after the reversal, it will connect to the first bending portion 202, and the arcuate turning portion 2012 will be slightly higher than the exhaust silencer cover and then bend downwards. The inserting portion and the arcuate turning portion need to be inspected and their shapes and positions need to be ensured.

[0022] Furthermore, the connecting section 204 includes a first horizontal section 2041, one end of the first horizontal section 2041 is horizontally bent and connected to a second horizontal section 2042, the second horizontal section 2042 is connected to the second U-shaped arc section 205, and the other end of the first horizontal section 2041 is connected to a second bending portion 2043, and the second bending portion 2043 is connected to the first U-shaped arc section 203.

[0023] The connecting section 204 can connect the first U-shaped arc section and the second U-shaped arc section at intervals in two directions by using its first horizontal section and the second horizontal section. One of the two arc sections is close to the inlet end and the other is close to the outlet end, which can better play the role of noise reduction and at the same time can reasonably utilize the limited space in the compressor for coil arrangement.

[0024] Specifically, the bottoms of the first U-shaped arc segment 203 and the second U-shaped arc segment 205 are basically at the same height position, the outlet section 206 is arranged vertically, and the vertical distance between the outlet bottom plane of the outlet section 206 and the bottom surface of the exhaust silencer cover 1 is H1. These distances and height positions need to be inspected and guaranteed.

[0025] The tube body of the first U-shaped arc segment 203 connecting the first bending portion 202 is arranged inclined, and the tube body of the second U-shaped arc segment 205 connecting the outlet segment 206 is also arranged inclined. The angles of these two inclined tube bodies (part of the U-shaped arc segment) need to be inspected and guaranteed, and the shapes and sizes of the entire first U-shaped arc segment and the second U-shaped arc segment also need to be inspected and guaranteed.

[0026] Combination Figure 3 to Figure 9As shown, a detection device for an internal exhaust coil assembly for a compressor is provided, the detection device is a modular structure, including an inlet end detection surface 3, the inlet end detection surface 3 is used to connect and verify the exhaust silencer cover 1 and the inlet section 201; a first U-shaped fitting surface 4 is provided on one side of the inlet end detection surface 3, the first U-shaped fitting surface 4 is connected to and verifies the first U-shaped arc segment 203; the detection device is provided with a second U-shaped fitting surface 5 on the side away from the first U-shaped fitting surface 4, the second U-shaped fitting surface 5 is used to connect and verify the second U-shaped arc segment 205; a step structure bidirectional detection surface 6 is provided at the edge of the inlet end detection surface 3, the two ends of the step structure bidirectional detection surface 6 respectively extend to the first U-shaped fitting surface 4 and the second U-shaped fitting surface 5, the step structure bidirectional detection surface 6 is used to connect and verify the connecting section 204; the side edge of the second U-shaped fitting surface 5 is also provided with an outlet detection structure, the outlet detection structure is connected to and verifies the outlet section 206.

[0027] The detection device can effectively and quickly detect the various spatial dimensions, positions and shapes of the internal exhaust coil assembly through the arrangement of the inlet end detection surface 3, the first U-shaped fitting surface 4, the second U-shaped fitting surface 5, the step structure bidirectional detection surface 6 and the outlet detection structure, and convert the spatial dimensions that are inconvenient to observe and measure into a measurable, comparable and correctable detection device. The size and angle of the internal exhaust coil are easy to measure, and the measurement value is highly accurate. Moreover, the detection device is small in size, light in weight and can be moved freely. According to the internal exhaust coil forming process and the forming requirements of each process, it is made into size and space modules and the size and space position of each process are detected by splicing the modules. It can not only be used for the factory forming detection of the internal exhaust coil detection device, but also can be modularly adjusted according to the requirements of the size and space position of each process, accurately detect the size and space position of each process and obtain the correct size, or make a corresponding position detection device for each process of the internal exhaust coil to ensure that the size and position of each process meet the requirements.

[0028] Specifically, the inlet end detection surface 3 is provided with a silencer cover limiting hole 7, and the silencer cover limiting hole 7 is provided with an inlet section insertion depth detection hole 8, and the aperture of the inlet section insertion depth detection hole 8 is equal to or slightly larger than the tube body diameter of the inlet section insertion part by 0.01-0.05 mm; the exhaust silencer cover 1 is covered in the exhaust cover limiting hole 7, and the insertion part 2011 of the inlet section 201 will be inserted into the inlet section insertion depth detection hole 8. Through the coordinated setting of the two, it is possible to quickly detect whether the shape and size of the exhaust silencer cover 1 are correct, whether the setting position of the insertion part of the inlet section 201 is correct, and whether the insertion depth meets the requirements. If one of them does not meet the requirements, it cannot be matched normally.

[0029] The inlet detection surface 3 is also provided with an inlet fitting boss 9 near the muffler cover limiting hole 7. The inlet fitting boss 9 can detect the arc-shaped turning part 2012 of the inlet section 201 to determine whether the position, direction and degree of its bending meet the requirements.

[0030] In some embodiments, the inlet end fitting boss 9 may be a cylindrical boss (see Figure 9-10 , 13-15), the diameter of the cylindrical boss is equivalent to the turning radius of the inner exhaust coil after coming out of the exhaust silencer cover, that is, equivalent to the turning radius of the arc-shaped turning part, which can be quickly and intuitively inspected.

[0031] In other embodiments, the inlet end fitting boss 9 is an arc-shaped boss (see Figure 3-8 ), an arc-shaped fitting groove is provided on the arc-shaped boss, and the diameter and direction of the fitting groove are basically the same as those of the arc-shaped turning part. The arc-shaped turning part is placed in the fitting groove to check whether its bending position, direction and degree meet the requirements; at the same time, it can also play a calibration role. If the entrance section is deformed, the fitting groove can be used to correct it to a shape that meets the requirements.

[0032] Further, a first U-shaped transition groove 10 is provided at the transition between the inlet end detection surface 3 and the first U-shaped fitting surface 4, and the two ends of the first U-shaped transition groove 10 extend toward the inlet end detection surface 3 and the first U-shaped fitting surface 4 respectively; a second U-shaped transition groove 11 is provided at the transition between the step structure bidirectional detection surface 6 and the first U-shaped fitting surface 4, and the two ends of the second U-shaped transition groove 11 extend toward the horizontal plane of the step structure bidirectional detection surface 6 and the first U-shaped fitting surface 4 respectively; a third U-shaped transition groove 23 is provided at the transition between the step structure bidirectional detection surface 6 and the second U-shaped fitting surface 5 (see Figure 6 , not shown in other figures), both ends of the third U-shaped transition groove extend toward the horizontal plane of the bidirectional detection surface of the step structure and the second U-shaped fitting surface respectively.

[0033] Through the setting of the first U-shaped transition groove 10, the second U-shaped transition groove 11 and the third U-shaped transition groove, the first bending portion 202, the second bending portion 2043, and the curvature of the connecting section and the first U-shaped arc segment and the second U-shaped arc segment at the transition point can be well inspected to determine whether the bending direction, curvature and position of these positions are correct. These curved corners can be inspected at the same time, which is simple and convenient and has high accuracy and efficiency.

[0034] The first U-shaped transition groove 10 and the second U-shaped transition groove 11 have various styles, such as the following Figure 3As shown, the length extending to the first U-shaped fitting surface 4 is longer, as shown in FIG. Fig. 9 As shown, the length extending to the first U-shaped fitting surface 4 is relatively short, and the shape of the third U-shaped transition groove 23 is similar to Fig. 9 The second U-shaped transition trough is similar.

[0035] The step structure bidirectional detection surface 6 is a staggered structure on one side above the detection device, and has a horizontal connection plane 601 and a vertical limit wall 602, which allows the connection section 204 to fit and abut thereon, thereby quickly determining whether the connection section 204 meets the requirements, and it can simultaneously inspect the connection section 204 from both the horizontal and vertical directions.

[0036] Furthermore, the first U-shaped fitting surface 4 and the second U-shaped fitting surface 5 are respectively provided with vertical depth scale lines 12 and U-shaped angle scale lines 13; the outlet detection structure is also provided with vertical outlet length scale lines 14.

[0037] The depth scale line 12 and the end length scale line 14 can quickly identify the height dimensions of each part and determine whether they are consistent with the designed dimensions; the U-shaped angle scale line 13 can be used to determine the inclination of the tube body of the first U-shaped arc segment 203 and the second U-shaped arc segment 205 to determine whether they meet the design requirements, and can also serve as a reference when correcting unqualified U-shaped arc segments.

[0038] Further, such as Fig.10 As shown, the first U-shaped fitting surface 4 and the second U-shaped fitting surface 5 are respectively provided with a bending positioning hole 15 at the U-shaped position, and the bending positioning hole 15 is used to connect a bending device to correct the first U-shaped arc segment 203 or the second U-shaped arc segment 205 that fails the inspection.

[0039] Specifically, Fig.11 and Fig.12 As shown, the pipe bender includes a handle 16, a locking pin 17 is provided on one side of the handle 16, a profiling sleeve 18 is provided on the locking pin 17, a pipe bending R groove 19 is provided on the profiling sleeve 18, and the handle 16 is also provided with a pipe bending positioning pin 20 on the same side as the locking pin 17. The pipe bending positioning hole 15 cooperates with the pipe bending positioning pin 20, and the pipe bending positioning pin 20 can rotate freely in the pipe bending positioning hole 15. The pipe bending R groove 19 is fastened to the handle 16 through the locking pin 17, and the pipe bending R groove 19 can rotate freely on the locking pin. The pipe bender is used when the position of the first U-shaped arc segment 203 or the second U-shaped arc segment 205 of the inner plate gas coil does not meet the requirements, and the curvature of the U-shaped arc segment can be freely adjusted and corrected.

[0040] Furthermore, the detection device of the inner exhaust coil assembly can be made of plastic or stainless steel, can be constructed by mold or 3D printing, can be made into size modules according to the coil detection requirements, and can be spliced ​​according to the molding process requirements.

[0041] In other embodiments, Figure 13 to Figure 15 As shown, the detection device is provided with a first U-shaped groove 21 on the first U-shaped fitting surface 4 that conforms to the first U-shaped arc segment 203, and a second U-shaped groove 22 on the second U-shaped fitting surface 5 that conforms to the second U-shaped arc segment 205, and the depth of the first U-shaped groove 21 and the second U-shaped groove 22 is not less than 1 / 2 of the diameter of the inner exhaust coil.

[0042] Compared with the extension of the first U-shaped transition groove and the second U-shaped transition groove on the first U-shaped fitting surface, the structure of the first U-shaped groove 21 can feedback the shape of the entire U-shape, and in addition to being able to check whether the first U-shaped arc segment 203 meets the requirements, the U-shaped groove can also be used to correct unqualified U-shaped arc segments. Similarly, the second U-shaped groove 22 on the second U-shaped fitting surface can inspect and correct the second U-shaped arc segment 205 and the exit segment.

[0043] The present invention also provides an identification method using a detection device for an inner exhaust coil assembly for a compressor, the identification method comprising the following steps: Step 1: Place the inner exhaust coil assembly into the detection device, and place the exhaust silencer cover and the inlet section on the inlet end detection surface; observe the fit between the first U-shaped arc segment and the first U-shaped fitting surface, the fit between the connecting section and the horizontal connecting plane and the vertical limiting wall of the double-sided detection surface of the step structure, and the fit between the second U-shaped arc segment and the second U-shaped fitting surface; observe whether the outlet section fits with the outlet detection structure, and whether the length of the outlet section is consistent with the outlet length scale line at the outlet detection structure; if not, apply external force to the inner exhaust coil to confirm whether the inner exhaust coil is completely fitted with each surface of the detection device; Specifically, the formed inner exhaust coil is placed into the detection device, the exhaust silencer cover is placed into the silencer cover limiting hole, and is limitedly supported by the entry-end fitting boss, and is clamped and fixed by the first U-shaped transition groove, the second U-shaped transition groove and the third U-shaped transition groove, and the fitting of the inner exhaust coil with the first U-shaped fitting surface, the horizontal connecting plane, the vertical limiting wall surface and the second U-shaped fitting surface of the detection device is observed. The coil should fit with each surface, and observe whether the length of the inner exhaust outlet is consistent with the outlet section length scale line. If not, apply external force to the coil to ensure that the inner exhaust coil fits completely with each surface.

[0044] Step 2: Using the U-shaped angle scale lines and the depth scale lines on the first U-shaped bonding surface and the second U-shaped bonding surface, respectively detect the consistency of the angles of the first U-shaped arc segment and the second U-shaped arc segment with the U-shaped angle scale lines, and detect the consistency of the angles of the first U-shaped arc segment and the second U-shaped arc segment with the depth scale lines; Specifically, in order to further ensure the conformity of the shape and height of each U-shaped arc of the inner exhaust coil, the inner exhaust coil that has passed the inspection in step 1 is placed in the inspection device, and the angles of the first U-shaped arc segment and the second U-shaped arc segment of the inner exhaust coil are inspected for consistency with the U-shaped angle scale lines on the two U-shaped fitting surfaces of the inspection device, and the heights of the first U-shaped arc segment and the second U-shaped arc segment of the inner exhaust coil are inspected for consistency with the depth scale lines.

[0045] Step 3: If the fitting, angle and depth of the inner exhaust coil meet the requirements, it is a qualified product; if the angle and depth of the first U-shaped arc segment and the second U-shaped arc segment of the inner exhaust coil do not meet the requirements, use the bending positioning holes on the first U-shaped fitting surface and the second U-shaped fitting surface, and the matching bending tool to correct the first U-shaped arc segment or the second U-shaped arc segment to meet the requirements.

[0046] Specifically, the inner exhaust coil is placed in the detection device, the exhaust silencer cover is placed in the silencer cover limiting hole, and is limited and supported by the inlet cylindrical boss, the elbow positioning hole cooperates with the elbow positioning pin, and the inner exhaust coil passes through the elbow R groove, and according to the direction difference between the angles of the first U-shaped arc segment and the second U-shaped arc segment and the angle of the detection device, the handle is turned. For example, if the U-shaped arc angle of the inner exhaust coil is biased to the left, the handle is turned to the right. If the U-shaped arc angle of the inner exhaust coil is biased to the right, the handle is turned to the left. The effect of the R groove of the elbow on the coil is to return the U-shaped arc to the correct angle. Furthermore, according to the measured deviation angle of the U-shaped arc segment of the inner exhaust coil, the elbow angle scale lines can be set on the two U-shaped fitting surfaces of the detection device. If the angle of the U-shaped arc segment of the inner exhaust coil is biased to the right, turn the handle to the left, and ensure that the angle of the handle rotation is the same as the angle of deviation of the U-shaped arc segment by observing the elbow angle scale lines (the method for biasing to the right is the same as that for biasing to the left). At the same time, observe whether the end length of the inner exhaust coil is consistent with the end length scale lines.

[0047] Step 4: Place the inner exhaust coil that has passed step 3 into the detection device, place the exhaust silencer cover into the silencer cover limit hole, and support it through the inlet cylindrical boss limit support, the inner exhaust coil passes through the first U-shaped transition groove, the second U-shaped transition groove and the third U-shaped transition groove in sequence, the elbow positioning hole cooperates with the elbow positioning pin, and gently pushes the inner exhaust coil, the first U-shaped arc section of the inner exhaust coil enters the first U-shaped groove, the second U-shaped arc section enters the second U-shaped groove, the end length of the inner exhaust coil is consistent with the outlet length scale line, the surface of the inner exhaust coil is qualified, and meets the design requirements.

[0048] Through the detection device and the identification method, the consistency of the internal exhaust coil and the drawing can be ensured, which not only avoids collision or noise, but also the internal exhaust coil detected by the internal exhaust coil detection device, because the spatial positions of the internal exhaust coil are consistent with the design, effectively ensures that the inherent modes of the batch-produced coils are consistent with the design, reduces the modal changes caused by the differences in the coil positions, and greatly improves the consistency of products. At the same time, because the batch-produced internal exhaust coils are highly consistent, employees do not need to perform unnecessary actions when calibrating the coils. The calibration actions are few and standardized, and the production efficiency is high, which further improves the consistency and stability of the products.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An internal exhaust coil assembly for a compressor, characterized in that: It includes an exhaust silencer cover and an inner exhaust coil connected to the exhaust silencer cover, the inner exhaust coil includes an inlet section connected to the exhaust silencer cover, the inlet section is connected to a first bending portion, the first bending portion is connected to a first U-shaped arc segment, the first U-shaped arc segment is connected to a second U-shaped arc segment after being bent and turned multiple times through a connecting section, and the end of the second U-shaped arc segment is connected to an outlet section.

2. The inner exhaust coil assembly for a compressor according to claim 1, characterized in that: The inlet section includes an inserting portion and an arc-shaped turning portion, the inserting portion is plugged into the exhaust silencer cover, and the arc-shaped turning portion is connected to the first bending portion bent downward.

3. The inner exhaust coil assembly for a compressor according to claim 1, characterized in that: The connecting section includes a first horizontal section, one end of the first horizontal section is horizontally bent and connected to a second horizontal section, the second horizontal section is connected to the second U-shaped arc section, the other end of the first horizontal section is connected to a second bending portion, and the second bending portion is connected to the first U-shaped arc section.

4. A detection device for an inner exhaust coil assembly for a compressor according to any one of claims 1 to 3, characterized in that: The detection device is a modular structure, including an inlet end detection surface, which is used to connect and verify the exhaust silencer cover and the inlet section; a first U-shaped fitting surface is provided on one side of the inlet end detection surface, and the first U-shaped fitting surface is connected to and verifies the first U-shaped arc segment; the detection device is provided with a second U-shaped fitting surface on the side away from the first U-shaped fitting surface, and the second U-shaped fitting surface is used to connect and verify the second U-shaped arc segment; a step structure bidirectional detection surface is provided at the edge of the inlet end detection surface, and the two ends of the step structure bidirectional detection surface extend to the first U-shaped fitting surface and the second U-shaped fitting surface respectively, and the step structure bidirectional detection surface is used to connect and verify the connecting section; an outlet detection structure is also provided on the side edge of the second U-shaped fitting surface, and the outlet detection structure is connected to and verifies the outlet section.

5. The detection device for the inner exhaust coil assembly for a compressor according to claim 4, characterized in that: The inlet detection surface is provided with a silencer cover limiting hole, and the silencer cover limiting hole is provided with an inlet section insertion depth detection hole; the inlet detection surface is also provided with an entry end fitting boss near the silencer cover limiting hole.

6. The detection device for the inner exhaust coil assembly for a compressor according to claim 4, characterized in that: A first U-shaped transition groove is provided at the transition between the inlet end detection surface and the first U-shaped fitting surface, and two ends of the first U-shaped transition groove extend toward the inlet end detection surface and the first U-shaped fitting surface respectively; a second U-shaped transition groove is provided at the transition between the step structure bidirectional detection surface and the first U-shaped fitting surface, and two ends of the second U-shaped transition groove extend toward the horizontal surface of the step structure bidirectional detection surface and the first U-shaped fitting surface respectively; a third U-shaped transition groove is provided at the transition between the step structure bidirectional detection surface and the second U-shaped fitting surface, and two ends of the third U-shaped transition groove extend toward the horizontal surface of the step structure bidirectional detection surface and the second U-shaped fitting surface respectively.

7. The detection device for the inner exhaust coil assembly for a compressor according to claim 4, characterized in that: The first U-shaped fitting surface and the second U-shaped fitting surface are respectively provided with vertical depth scale lines and U-shaped angle scale lines; the outlet detection structure is also provided with vertical outlet length scale lines.

8. The detection device for the inner exhaust coil assembly for a compressor according to claim 4, characterized in that: The first U-shaped fitting surface and the second U-shaped fitting surface are respectively provided with bending positioning holes at the U-shaped positions, and the bending positioning holes are used to connect the bending device to correct the first U-shaped arc segment or the second U-shaped arc segment that fails the inspection.

9. The detection device for the inner exhaust coil assembly for a compressor according to claim 4, characterized in that: The detection device is provided with a first U-shaped groove on the first U-shaped fitting surface that conforms to the first U-shaped arc segment, and a second U-shaped groove on the second U-shaped fitting surface that conforms to the second U-shaped arc segment, and the depth of the first U-shaped groove and the second U-shaped groove is not less than 1 / 2 of the diameter of the inner exhaust coil.

10. A method for identifying a detection device for an inner exhaust coil assembly for a compressor according to claim 4, characterized in that: The identification method comprises the following steps: Place the inner exhaust coil assembly into the detection device, and place the exhaust silencer cover and the inlet section on the inlet end detection surface; observe the fit between the first U-shaped arc section and the first U-shaped fitting surface, the fit between the connecting section and the horizontal connecting plane and the vertical limiting wall of the double-sided detection surface of the step structure, and the fit between the second U-shaped arc section and the second U-shaped fitting surface; observe whether the outlet section fits the outlet detection structure, and whether the length of the outlet section is consistent with the outlet length scale line at the outlet detection structure; If not, apply external force to the inner exhaust coil to confirm whether the inner exhaust coil and each surface of the detection device are completely in contact with each other; Using the U-shaped angle scale lines and the depth scale lines on the first U-shaped bonding surface and the second U-shaped bonding surface, respectively detect the consistency of the angles of the first U-shaped arc segment and the second U-shaped arc segment with the U-shaped angle scale lines, and detect the consistency of the angles of the first U-shaped arc segment and the second U-shaped arc segment with the depth scale lines; If the fitting, angle and depth of the inner exhaust coil meet the requirements, it is a qualified product; if the angle and depth of the first U-shaped arc segment and the second U-shaped arc segment of the inner exhaust coil do not meet the requirements, the first U-shaped arc segment or the second U-shaped arc segment is corrected by using the bending positioning holes on the first U-shaped fitting surface and the second U-shaped fitting surface and the matching bending tool to meet the requirements.

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