Performance detection equipment for screw gas compressor assembly

Abstract

The invention relates to the technical field of screw gas compressor performance detection, in particular to screw gas compressor assembly performance detection equipment, which comprises a base, two clamping units arranged left and right are mounted at the upper end of the base, the clamping units are used for clamping a screw rotor and driving the screw rotor to rotate, and detection units are distributed above the base. The shape following unit is mounted in the middle of the upper end of the base, and the detection unit is mounted on the shape following unit; the device is used for detecting the wear resistance of the screw rotor, and the wear resistance of the screw rotor is detected in a rolling friction and sliding friction combined manner, so that the actual friction state of the screw rotor during working can be simulated, and the later use effect of the screw rotor is ensured; and meanwhile, constant friction force can be applied to the surface of the screw rotor according to the spiral tooth shape of the screw rotor, so that the accuracy of the wear resistance detection result of the screw rotor is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of screw gas compressor performance detection, in particular to a screw gas compressor component performance detection device. Background Art

[0002] Screw gas compressors are key equipment widely used in the industrial field. The performance of screw gas compressors directly affects the stability and efficiency of the entire production system. The screw rotor is the core component of the screw gas compressor. Fig.11 As shown, the screw rotor is usually spiral and has a unique spiral tooth structure. The performance of the screw rotor, especially the wear resistance, plays a decisive role in the service life and working reliability of the screw gas compressor. Therefore, it is necessary to test the wear resistance of the screw rotor.

[0003] In the existing wear resistance test of the screw rotor, the screw rotor is usually clamped and fixed by a fixture, and then the surface of the screw rotor is continuously rubbed by a friction detection device. Finally, the screw rotor is removed from the fixture and the surface wear of the screw rotor is tested to evaluate whether the wear resistance of the screw rotor is qualified.

[0004] The following problems exist in the existing testing of the wear resistance of the screw rotor: 1. The screw rotor has two forms of friction when working: rolling friction and sliding friction. Since there may be particulate impurities in the gas, the particulate impurities may impact the surface of the friction screw rotor when the screw gas compressor is working. The existing testing method for the wear resistance of the screw rotor is relatively single, which cannot simulate the actual friction state of the screw rotor when working, affecting the actual use effect of the screw rotor; 2. Due to the complex shape of the helical tooth shape of the screw rotor, when the wear resistance of the helical tooth shape of the screw rotor is tested at different positions, there may be incomplete fit between the friction parts and the screw rotor, resulting in the failure of the friction parts to apply constant friction force to the screw rotor, thereby reducing the accuracy of the wear resistance test results of the spiral rotor. Summary of the invention

[0005] In order to solve the above technical problems, the present invention adopts the following technical scheme: a screw gas compressor component performance detection device, including a base, two clamping units arranged on the left and right are installed on the upper end of the base, the clamping units are used to clamp the screw rotor and drive the screw rotor to rotate, and detection units are distributed above the base, and a follower unit is installed in the middle of the upper end of the base, and the detection unit is installed on the follower unit; the follower unit includes an annular sleeve slidably installed in the middle of the upper end of the base, a reset spring is connected between the annular sleeve and the base, a transmission ring is rotatably installed on the inner side of the annular sleeve through a plurality of guide springs, a follower rod is threadedly connected to the lower inner side of the annular sleeve, and the upper end of the follower rod slides through the transmission ring. A movable ring, a matching part for driving the transmission ring to reciprocate is installed on the rear end of the upper side of the base; the detection unit includes an arc-shaped slider slidably installed on the transmission ring and arranged symmetrically on the center, a pressure spring rod is radially slidably installed on the side of the arc-shaped slider close to the middle of the transmission ring, a friction ball is rotatably installed on the side of the pressure spring rod close to the middle of the transmission ring, a locking part for locking the rotating shaft of the friction ball is installed on the telescopic end of the pressure spring rod, an impact part for impacting the telescopic end of the pressure spring rod is installed on the side of the fixed end of the pressure spring rod close to the center of the transmission ring, a follower is connected between the transmission ring and the pressure spring rod, and the follower is used to cooperate with the screw rotor to drive the pressure spring rod to slide radially synchronously.

[0006] Preferably, the clamping unit includes a vertical plate, wherein the left vertical plate is fixedly connected to the base, and the right vertical plate is connected to the base for left and right sliding via an adjusting member, and a rotating plate is rotatably installed on the vertical plate, wherein an active member is connected between the left rotating plate and the base, and a plurality of circumferentially evenly arranged clamping plates are radially slidably installed on opposite sides of the two rotating plates via synchronous members.

[0007] Preferably, an arc-shaped groove is provided at the position corresponding to the pressure spring rod at the right end of the transmission ring, and the follower includes an arc-shaped plate slidably installed in the arc-shaped groove, an arc spring is connected between the arc-shaped plate and the arc-shaped groove, an arc-shaped hole is provided at the position corresponding to the pressure spring rod, a sliding plate with an arc structure is slidably installed in the arc-shaped hole, an inclined groove is provided on the sliding plate, a round rod is slidably installed in the inclined groove, and one end of the round rod close to the transmission ring radially slides through the arc-shaped slider and is fixedly connected to the corresponding pressure spring rod.

[0008] Preferably, two connecting sleeves symmetrically arranged front and back are radially slidably installed on the inner wall of the transmission ring, and a driven rod is threadedly connected to one side of the connecting sleeve close to the middle of the transmission ring. An inclined matching groove is provided at the position of the arc plate corresponding to the connecting sleeve, and a matching rod is slidably installed in the matching groove. One end of the matching rod close to the transmission ring radially slides through the transmission ring and is fixedly connected to the connecting sleeve.

[0009] Preferably, through holes are provided at positions on the outer side of the annular sleeve corresponding to the arc-shaped slider, multiple circular holes evenly arranged circumferentially are provided at positions on the outer side of the arc plate corresponding to the sliding plate and at positions on the outer side of the transmission ring corresponding to the arc-shaped slider, locking screws are detachably installed in the circular holes, and locking holes for cooperating with the corresponding locking screws are provided on the outer side of the sliding plate and the outer side of the arc-shaped slider.

[0010] Preferably, an L-shaped toggle rod is fixedly installed on the right end of the arc plate, and two L-shaped limit plates arranged on opposite sides are slidably installed on the upper end of the adjusting member through a connecting spring. An inclined surface for cooperating with the toggle rod is provided on the left side of the transverse section of the limit plate, and an L-shaped plate is fixedly installed at the position corresponding to the limit plate on the right end of the annular sleeve, and the back sides of the right ends of the two L-shaped plates are arranged to be inclined surfaces for driving the two limit plates to move away from each other.

[0011] Preferably, the impact member includes a fixed plate fixedly mounted on the left end of the fixed end of the pressure spring rod near the middle of the transmission ring, an impact spring rod is slidably mounted on the fixed plate, a matching spring rod is fixedly mounted on the left end of the impact spring rod away from the middle of the transmission ring, an unlocking plate is fixedly mounted on the right end of the impact spring rod near the middle of the transmission ring, a square plate is fixedly mounted on the left end of the telescopic end of the pressure spring rod near the middle of the transmission ring, and the square plate and the impact spring rod are arranged in contact.

[0012] Preferably, a mounting plate is detachably installed at the position of the impact spring rod at the inner left end of the annular sleeve, a connecting plate with an arc structure is fixedly installed on the side of the mounting plate close to the middle of the annular sleeve, a plurality of circumferentially evenly arranged L-shaped matching blocks are fixedly installed on the side of the connecting plate close to the middle of the annular sleeve, an inclined surface for driving the matching spring rod to match is provided on the right side of the transverse section of the matching block, and a side of the left end of the matching spring rod away from the matching block is set as an inclined surface.

[0013] Preferably, the locking member includes a clamping plate radially slidably installed on the telescopic end of the pressure spring rod, and the left end of the clamping plate radially slides through the telescopic end of the pressure spring rod, a top extension spring is connected between the clamping plate and the pressure spring rod, a locking rod is fixedly installed on one side of the clamping plate close to the middle of the annular sleeve, and a mating hole for cooperating with the locking rod to lock the friction ball rotating shaft is opened on the friction ball rotating shaft.

[0014] Preferably, the mating part includes a plurality of mating plates fixedly mounted on the rear end of the upper side of the base and evenly arranged on the left and right sides, and the left and right sides of the upper end of the mating plates are both set as inclined surfaces. A transmission rod is fixedly mounted on the rear part of the transmission ring, and the rear end of the transmission rod slides through the annular sleeve, and the transmission rod is used to cooperate with the inclined surface of the mating plate to drive the transmission ring to rotate.

[0015] The beneficial effects of the present invention are as follows: 1. The present invention drives the friction ball to continuously rub the surface of the screw rotor by arranging the spiral tooth shape of the conformal unit and the screw rotor, thereby realizing the detection of the wear resistance of the screw rotor. At the same time, the present invention locks the rotating shaft of the friction ball by arranging a locking piece, so that the friction ball detects the wear resistance of the screw rotor by combining rolling friction and sliding friction, thereby simulating the actual friction state of the screw rotor when working, and ensuring the later use effect of the screw rotor.

[0016] 2. When the friction ball tests the wear resistance of the screw rotor surface, the present invention sets an impact piece to continuously impact the telescopic end of the pressurized spring rod, so that the friction ball rubs the surface of the screw rotor by impact friction, thereby simulating the situation where particulate impurities impact and rub the surface of the screw rotor, further ensuring the later use effect of the screw rotor.

[0017] 3. The present invention arranges a follower rod to move along the spiral tooth shape of the screw rotor, and at the same time, the follower rod can synchronously drive the pressure spring rod to move radially, thereby ensuring that the compression amount of the pressure spring rod always remains constant, so that the friction ball always rubs the surface of the screw rotor with a constant friction force, ensuring that the friction force on each part of the spiral tooth shape of the screw rotor is uniform and stable, thereby ensuring the accuracy of the test results of the wear resistance of the screw rotor. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0020] Figure 2 It is a three-dimensional structural schematic diagram of the base and the clamping unit of the present invention.

[0021] Figure 3 It is a three-dimensional structural schematic diagram of the base, the follower unit and the detection unit of the present invention.

[0022] Figure 4 It is a three-dimensional structural schematic diagram of the follower unit and the detection unit after the annular sleeve is partially cut away.

[0023] Figure 5 It is a three-dimensional structural schematic diagram of the follower unit partial structure and the detection unit of the present invention.

[0024] Figure 6 It is a right view of the partial structure of the follower unit and the detection unit of the present invention.

[0025] Figure 7 It is a three-dimensional structural schematic diagram of the follower unit partial structure and the detection unit partial structure after a part of the transmission ring is cut away in the present invention.

[0026] Figure 8 It is a three-dimensional structural schematic diagram of the follower unit and the detection unit of the present invention.

[0027] Fig. 9 The present invention Figure 8 Enlarged view of point A.

[0028] Fig.10 It is a three-dimensional structural schematic diagram of the detection unit partial structure after the telescopic end of the pressurized spring rod is partially cut away.

[0029] Fig.11 It is a schematic diagram of the three-dimensional structure of the screw rotor.

[0030] Figure numerals: 1, base; 11, matching piece; 111, matching plate; 2, clamping unit; 21, vertical plate; 22, adjusting piece; 221, connecting spring; 222, limiting plate; 23, rotating plate; 24, active piece; 25, synchronous piece; 26, clamping plate; 3, following unit; 31, reset spring; 32, annular sleeve; 321, mounting plate; 322, connecting plate; 323, matching block; 324, L-shaped plate; 33, guide spring; 34, transmission ring; 341, transmission rod; 35, following rod; 36, driven Components; 361, arc plate; 362, arc spring; 363, sliding plate; 364, round rod; 365, connecting sleeve; 366, driven rod; 367, matching rod; 368, toggle rod; 37, locking screw; 4, detection unit; 41, arc slider; 42, pressure spring rod; 421, square plate; 43, friction ball; 44, locking component; 441, pressing plate; 442, extension spring; 443, locking rod; 45, impact component; 451, impact spring rod; 452, matching spring rod; 453, unlocking plate. DETAILED DESCRIPTION

[0031] The embodiments described below are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. If no specific techniques or conditions are specified in the embodiments, the techniques or conditions described in the literature in the art or the product instructions shall be followed.

[0032] See also Figure 1 A screw gas compressor component performance detection device includes a base 1, two clamping units 2 arranged on the left and right are installed on the upper end of the base 1, the clamping units 2 are used to clamp the screw rotor and drive the screw rotor to rotate, a detection unit 4 is distributed above the base 1, a conformal unit 3 is installed in the middle of the upper end of the base 1, and the detection unit 4 is installed on the conformal unit 3.

[0033] The present invention is used to detect the wear resistance of the screw rotor, and the present invention detects the wear resistance of the screw rotor by combining rolling friction and sliding friction, thereby ensuring the later use effect of the screw rotor. At the same time, the present invention can also apply a constant friction force to the surface of the screw rotor according to the spiral tooth shape of the screw rotor, thereby ensuring the accuracy of the wear resistance test result of the screw rotor.

[0034] Specifically, first, the rotating shaft of the screw rotor is placed in two clamping units 2, and the clamping units 2 are controlled to clamp and fix the screw rotor. Then, the friction force applied by the detection unit 4 to the surface of the screw rotor is controlled according to the friction force applied to the surface of the screw rotor as required. Then, the clamping unit 2 is controlled to drive the screw rotor to rotate. At the same time, the rotating screw rotor can cooperate with the conforming unit 3 to drive the detection unit 4 to move back and forth, so that the detection unit 4 continuously rubs the surface of the screw rotor by combining rolling friction and sliding friction. At the same time, the conforming unit 3 can cooperate with the spiral tooth shape of the screw rotor to drive the detection unit 4 to apply a constant friction force to the surface of the screw rotor. When the detection unit 4 completes the friction detection of the screw rotor, the screw rotor is taken out of the clamping unit 2, and the wear condition of the surface of the screw rotor is detected to evaluate whether the wear resistance of the screw rotor is qualified.

[0035] It should be noted that the surface wear of the screw rotor can be detected using a machine vision system. A light source is used to illuminate the screw rotor and provide uniform and sufficient light to ensure that the surface features of the screw rotor are clearly visible. The lens images the screw rotor on the camera's image sensor. The camera's image sensor converts the light signal into an electrical signal. After analog-to-digital conversion, the digital image data is transmitted to an image processing unit. The image processing unit is used to analyze and process the digital image data to obtain the wear condition of the screw rotor surface.

[0036] See also Figure 1 and Figure 2 The clamping unit 2 includes a vertical plate 21, wherein the left vertical plate 21 is fixedly connected to the base 1, and the right vertical plate 21 is slidably connected to the base 1 left and right through an adjusting member 22, and a rotating plate 23 is rotatably installed on the vertical plate 21, wherein an active member 24 is connected between the left rotating plate 23 and the base 1, and multiple clamping plates 26 arranged evenly in the circumferential direction are radially slidably installed on the opposite sides of the two rotating plates 23 through a synchronous member 25.

[0037] It should be noted that the adjustment member 22 in the present invention includes a U-shaped plate, which is slidably installed on the upper end of the base 1, and the front vertical section of the U-shaped plate is threadedly connected with a threaded rod, and the threaded rod and the base 1 are rotatably connected, and the right side vertical plate 21 is fixedly installed on the upper end of the horizontal section of the U-shaped plate. By screwing the threaded rod, the U-shaped plate drives the right side vertical plate 21 to move left and right, thereby realizing the position adjustment of the vertical plate 21.

[0038] It should be noted that the active component 24 in the present invention includes a gear ring fixedly mounted on the outside of the left rotating plate 23 and located on the left side of the vertical plate 21, and a gear is meshingly installed at the lower end of the gear ring. The gear is fixedly connected to the output shaft of the motor fixedly installed between the bases 1 by key fitting. By starting the motor to drive the gear to rotate, the gear and the gear ring cooperate to drive the left rotating plate 23 to rotate.

[0039] It should be noted that the synchronous part 25 in the present invention includes a synchronous plate distributed on the back sides of the two rotating plates 23, a synchronous screw is threadedly connected to the synchronous plate, and the synchronous screw and the rotating plate 23 are rotatably connected, and an inclined rod is hinged at the position of the clamping plate 26 on the outer side of the synchronous plate, and the end of the inclined rod away from the synchronous plate is fixedly connected to the corresponding clamping plate 26, and the synchronous plate is driven to move left and right by screwing the synchronous screw, so that the synchronous plate drives the corresponding clamping plate 26 to move inward and outward synchronously through the inclined rod.

[0040] The clamping unit 2 is used to clamp and fix the screw rotor and drive the screw rotor to rotate; specifically, first, the adjusting member 22 is controlled to adjust the position of the right vertical plate 21 according to the length of the screw rotor, and then the rotating shafts at the left and right ends of the screw rotor are respectively placed on the opposite sides of the multiple clamping plates 26 on the left and right sides, and the synchronous member 25 is controlled to drive the corresponding multiple clamping plates 26 to move in a direction close to each other and clamp and fix the rotating shaft of the screw rotor, and finally the active member 24 is controlled to drive the left rotating plate 23 to rotate, so that the left rotating plate 23 drives the screw rotor to rotate through the synchronous member 25 and the clamping plate 26. After the performance test of the screw rotor is completed, the synchronous member 25 is controlled to drive the multiple clamping plates 26 to move in a direction away from each other, so that the screw rotor can be taken out, and the wear condition of the surface of the screw rotor is detected to evaluate whether the wear resistance of the screw rotor is qualified.

[0041] See also Figure 1 , Figure 3 and Figure 4 The conforming unit 3 includes an annular sleeve 32 slidably mounted on the middle part of the upper end of the base 1, a return spring 31 is connected between the annular sleeve 32 and the base 1, a transmission ring 34 is rotatably mounted on the inner side of the annular sleeve 32 through a plurality of guide springs 33, a conforming rod 35 is threadedly connected to the lower inner side of the annular sleeve 32, and the upper end of the conforming rod 35 slides through the transmission ring 34, and a matching piece 11 for driving the transmission ring 34 to reciprocate is installed on the upper rear end of the base 1.

[0042] See also Figure 2 and Figure 3The upper end of the horizontal section of the U-shaped plate is slidably installed with two L-shaped limit plates 222 arranged on the front and rear sides through a connecting spring 221. The right end of the annular sleeve 32 corresponds to the position of the limit plate 222 and is fixedly installed with an L-shaped plate 324. The opposite sides of the right ends of the two L-shaped plates 324 are arranged as inclined surfaces for driving the two limit plates 222 to move away from each other.

[0043] The conforming unit 3 is used to cooperate with the screw rotor to drive the detection unit 4 to move back and forth left and right; specifically, before clamping and fixing the screw rotor, the screw rotor is placed in the transmission ring 34, and the left end of the screw rotor is made to correspond to the position of the detection unit 4, and then the conforming rod 35 is screwed according to the diameter of the screw rotor, so that the conforming rod 35 is close to one end of the screw rotor and is in contact with the screw rotor. When the active member 24 is controlled to drive the screw rotor to rotate through the left rotating plate 23, the active member 24 is controlled to drive the rotation direction of the screw rotor according to the rotation direction of the helical tooth shape of the spiral rotor, so that the conforming rod 35 can cooperate with the helical tooth shape of the screw rotor to drive the annular sleeve 32 to move right, and then the annular sleeve 32 can drive the detection unit 4 to move right through the transmission ring 34, and at the same time, the matching member 11 can drive the transmission ring 34 to rotate back and forth, so that the transmission ring 34 drives the detection unit 4 to perform wear resistance detection on the surface of the screw rotor.

[0044] When the control adjustment member 22 adjusts the position of the right vertical plate 21, the adjustment member 22 can synchronously adjust the position of the limit plate 222. When the annular sleeve 32 gradually moves to the corresponding position of the right end of the screw rotor, the annular sleeve 32 drives the L-shaped plate 324 to move to the corresponding position of the limit plate 222, so that the inclined surface of the L-shaped plate 324 can drive the two limit plates 222 to move away from each other and compress the right end of the connecting spring 221. When the right end of the L-shaped plate 324 moves to the right side of the limit plate 222, the following rod 35 moves to the corresponding position of the right end of the screw rotor and separates from the screw rotor. At the same time, the inclined surface of the L-shaped plate 324 separates from the limit plate 222, and the limit plate 222 returns to its initial position under the action of the connecting spring 221 and limits the position of the L-shaped plate 324, so that the L-shaped plate 324 cannot move to the left, thereby preventing the annular sleeve 32 from returning to its initial position to the left.

[0045] Then, the active member 24 is controlled to drive the screw rotor to rotate a certain angle through the left rotating plate 23, and the two limit plates 222 are manually moved away from each other, thereby separating the limit plate 222 and the L-shaped plate 324 and allowing the annular sleeve 32 to move to the left under the action of the reset spring 31, so that the annular sleeve 32 drives the follower rod 35 to move to the left to the right end of the screw rotor, and then the active member 24 is controlled to drive the screw rotor to rotate in the opposite direction through the left rotating plate 23. At the same time, the reset spring 31 extends the annular sleeve 32 to the left, so that the follower rod 35 can cooperate with the spiral tooth shape of the screw rotor to drive the annular sleeve 32 to move to the right to the initial position, and the above operation is repeated, so that the detection unit 4 can perform performance detection on different positions of the screw rotor.

[0046] See also Figure 3 The mating piece 11 includes a plurality of mating plates 111 evenly arranged on the left and right sides fixedly mounted on the upper rear end of the base 1. The left and right sides of the upper end of the mating plate 111 are both arranged as inclined surfaces. A transmission rod 341 is fixedly mounted on the rear of the transmission ring 34. The rear end of the transmission rod 341 slides through the annular sleeve 32. The transmission rod 341 is used to cooperate with the inclined surface of the mating plate 111 to drive the transmission ring 34 to rotate.

[0047] The mating piece 11 is used to drive the transmission ring 34 to reciprocate; specifically, when the annular sleeve 32 drives the transmission ring 34 to move back and forth left and right, the transmission ring 34 drives the transmission rod 341 to move back and forth left and right, and at the same time, the transmission rod 341 can cooperate with the inclined surface of the mating plate 111 to make the transmission ring 34 reciprocate under the action of the guide spring 33.

[0048] See also Figure 3-Figure 5 and Figure 7 The detection unit 4 includes an arc-shaped slider 41 slidably mounted on the transmission ring 34 and arranged symmetrically on the center. A pressure spring rod 42 is radially slidably mounted on one side of the arc-shaped slider 41 close to the middle of the transmission ring 34. A friction ball 43 is rotatably mounted on the side of the pressure spring rod 42 close to the middle of the transmission ring 34. A locking piece 44 for locking the rotating axis of the friction ball 43 is mounted on the telescopic end of the pressure spring rod 42. An impact piece 45 for impacting the telescopic end of the pressure spring rod 42 is mounted on the side of the fixed end of the pressure spring rod 42 close to the center of the transmission ring 34. A follower 36 is connected between the transmission ring 34 and the pressure spring rod 42. The follower 36 is used to cooperate with the screw rotor to drive the pressure spring rod 42 to slide radially synchronously.

[0049] The detection unit 4 is used to detect the wear resistance of the screw rotor; specifically, before the screw rotor is clamped and fixed, the follower 36 is controlled to drive the pressure spring rod 42 to move in a direction away from the middle of the transmission ring 34, and then the screw rotor is placed in the transmission ring 34, and the follower 36 is controlled to drive the pressure spring rod 42 to move in a direction close to the middle of the transmission ring 34, so that the pressure spring rod 42 drives the friction ball 43 to fit on the surface of the screw rotor, and the friction force applied by the friction ball 43 to the surface of the screw rotor is controlled according to the compression amount of the pressure spring rod 42.

[0050] When the transmission ring 34 moves back and forth left and right, the transmission ring 34 drives the friction ball 43 to move back and forth left and right through the arc-shaped slider 41 and the pressure spring rod 42. At the same time, the transmission ring 34 drives the friction ball 43 to rotate back and forth through the arc-shaped slider 41 and the pressure spring rod 42, so that the friction ball 43 rolls and rubs the surface of the screw rotor. At the same time, the follower 36 can cooperate with the spiral tooth shape of the screw rotor to drive the pressure spring rod 42 to maintain a constant compression amount, so that the friction ball 43 applies a constant friction force to the screw rotor to ensure the accuracy of the test result. At the same time, the locking member 44 can lock the rotating shaft of the friction ball 43, so that the friction ball 43 slides and rubs the surface of the screw rotor, and the wear resistance of the screw rotor is tested in a combination of rolling friction and sliding friction. At the same time, the impact member 45 can impact the telescopic end of the pressure spring rod 42, so that the friction ball 43 can impact the surface of the friction screw rotor, thereby simulating the friction state of particle impurities impacting the surface of the friction screw rotor during actual work of the screw rotor, and further ensuring the use effect of the screw rotor.

[0051] See also Figure 4-Figure 6 An arc groove is provided at the right end of the transmission ring 34 corresponding to the position of the pressure spring rod 42, and the follower 36 includes an arc plate 361 slidably installed in the arc groove, an arc spring 362 is connected between the arc plate 361 and the arc groove, an arc hole is provided at the position of the arc plate 361 corresponding to the pressure spring rod 42, a sliding plate 363 with an arc structure is slidably installed in the arc hole, an inclined groove is provided on the sliding plate 363, a round rod 364 is slidably installed in the inclined groove, and one end of the round rod 364 close to the transmission ring 34 radially slides through the arc slider 41 and is fixedly connected to the corresponding pressure spring rod 42; wherein the elastic force of the arc spring 362 is much greater than that of the pressure spring rod 42.

[0052] See also Figure 4-Figure 6 Two connecting sleeves 365 arranged symmetrically front and back are radially slidably installed on the inner wall of the transmission ring 34. A driven rod 366 is threadedly connected to one side of the connecting sleeve 365 close to the middle of the transmission ring 34. An inclined matching groove is opened at the position of the arc plate 361 corresponding to the connecting sleeve 365. A matching rod 367 is slidably installed in the matching groove. One end of the matching rod 367 close to the transmission ring 34 radially slides through the transmission ring 34 and is fixedly connected to the connecting sleeve 365.

[0053] See also Figure 4 and Figure 7 A through hole is provided on the outer side of the annular sleeve 32 at a position corresponding to the arc-shaped slider 41, a plurality of circular holes evenly arranged in the circumferential direction are provided on the outer side of the arc plate 361 at a position corresponding to the sliding plate 363 and on the outer side of the transmission ring 34 at a position corresponding to the arc-shaped slider 41, and a locking screw 37 is detachably installed in the circular hole, and a locking hole for cooperating with the corresponding locking screw 37 is provided on the outer side of the sliding plate 363 and the outer side of the arc-shaped slider 41.

[0054] The follower 36 is used to make the friction ball 43 apply a constant friction force to the screw rotor; specifically, first, the sliding plate 363 and the arc-shaped slider 41 are synchronously slid according to the spiral tooth shape of the screw rotor, so that the arc-shaped slider 41 drives the friction ball 43 to move synchronously through the pressure spring rod 42, and then the angle between the pressure spring rod 42 and the driven rod 366 can be adjusted, so that the positions of the driven rod 366 and the friction ball 43 and the two adjacent spiral tooth shapes on the screw rotor correspond to each other, and then the locking screws 37 corresponding to the sliding plate 363 and the arc-shaped slider 41 are respectively installed in the corresponding circular holes of the arc-shaped plate 361 and the transmission ring 34, and the two locking screws 37 can respectively lock the positions of their corresponding sliding plates 363 and arc-shaped sliders 41.

[0055] Before clamping and fixing the screw rotor, manually slide the arc plate 361 so that the arc plate 361 cooperates with the inclined groove and round rod 364 of the sliding plate 363 to drive the pressure spring rod 42 to move in the direction away from the middle of the transmission ring 34. At the same time, the arc plate 361 cooperates with the matching groove and matching rod 367 to drive the connecting sleeve 365 and the driven rod 366 to move in the direction away from the middle of the transmission ring 34. When the screw rotor is placed in the transmission ring 34, release the arc plate 361 so that the arc plate 361 moves in the direction of restoring to the initial state under the action of the arc spring 362, and then the arc plate 361 cooperates with the inclined groove and round rod 364 of the sliding plate 363 to drive the pressure spring rod 42 to move in the direction close to the middle of the transmission ring 34 and make the friction ball 43 fit against the outside of the screw rotor. At the same time, the arc plate 361 cooperates with the matching groove and matching rod 367 to finally drive the driven rod 366 to move in the direction close to the middle of the transmission ring 34 and fit against the outside of the screw rotor.

[0056] By screwing the driven rod 366 to move toward the connecting sleeve 365, the arc plate 361 can make the driven rod 366 always fit the outside of the screw rotor under the action of the arc spring 362, and by adjusting the moving distance of the driven rod 366 toward the connecting sleeve 365, the compression amount of the pressure spring rod 42 can be adjusted, thereby adjusting the friction force applied by the friction ball 43 to the screw rotor.

[0057] When the transmission ring 34 reciprocates and rotates back and forth, the transmission ring 34 drives the driven rod 366 to reciprocate and rotate back and forth, and because the driven rod 366 is always in contact with the outside of the screw rotor, the driven rod 366 can drive the arc plate 361 to move through the matching groove and the matching rod 367, so that the arc plate 361 drives the pressure spring rod 42 to move radially synchronously through the inclined groove of the sliding plate 363 and the round rod 364, thereby ensuring that the pressure spring rod 42 can maintain a constant compression amount, ensuring that the friction ball 43 applies a constant friction force to the screw rotor, and ensuring the accuracy of the detection result.

[0058] See also Figure 1 and Figure 4 An L-shaped toggle rod 368 is fixedly installed on the right end of the arc plate 361, and an inclined surface for cooperating with the toggle rod 368 is opened on the left side of the transverse section of the limit plate 222; wherein, the inclined surface of the limit plate 222 located on the front side is set at the lower end on the left side, and the inclined surface of the limit plate 222 located on the rear side is set at the upper end on the left side, and then when the toggle rod 368 moves to the position corresponding to the inclined surface of the limit rod 222, the limit plate 222 and its corresponding toggle rod 368 cooperate to drive the two arc plates 361 to rotate in the same direction.

[0059] Specifically, when the annular sleeve 32 gradually moves to the corresponding position of the right end of the screw rotor, the toggle rod 368 can cooperate with the inclined surface of the limit plate 222 to drive the arc plate 361 to slide, so that the arc plate 361 cooperates with the inclined groove of the sliding plate 363 and the round rod 364 to drive the pressure spring rod 42 to move away from the middle of the transmission ring 34, and the inclined surface of the limit plate 222 located on the rear side can cooperate with the toggle rod 368 to drive its corresponding arc plate 361 to slide from bottom to top, and the inclined surface of the limit plate 222 located on the front side can cooperate with the toggle rod 368 to drive its corresponding arc plate 361 to slide from top to bottom, so that the two arc plates 361 slide in the same direction.

[0060] At the same time, the arc plate 361 cooperates with the matching groove and the matching rod 367 to finally drive the driven rod 366 to move away from the middle of the transmission ring 34, thereby ensuring that the active part 24 can drive the screw rotor to rotate a certain angle through the left rotating plate 23. When the annular sleeve 32 moves to the left, the toggle rod 368 can be separated from the limit plate 222, so that the arc plate 361 returns to the initial position under the arc spring 362, so that the friction ball 43 and the driven rod 366 can fit on the outside of the screw rotor again.

[0061] See also Fig.10The impact member 45 includes a fixed plate fixedly installed on the fixed end of the pressure spring rod 42 near the left end of the middle part of the transmission ring 34, an impact spring rod 451 is slidably installed on the fixed plate, a matching spring rod 452 is fixedly installed on the left end of the impact spring rod 451 away from the middle part of the transmission ring 34, an unlocking plate 453 is fixedly installed on the right end of the impact spring rod 451 near the middle part of the transmission ring 34, a square plate 421 is fixedly installed on the left end of the telescopic end of the pressure spring rod 42 near the middle part of the transmission ring 34, and the square plate 421 and the impact spring rod 451 are arranged in contact.

[0062] See also Figure 8 and Fig. 9 The position of the impact spring rod 451 at the inner left end of the annular sleeve 32 is detachably mounted with a mounting plate 321, a connecting plate 322 with an arc structure is fixedly mounted on one side of the mounting plate 321 close to the middle of the annular sleeve 32, a plurality of L-shaped matching blocks 323 arranged evenly in the circumferential direction are fixedly mounted on one side of the connecting plate 322 close to the middle of the annular sleeve 32, an inclined surface for driving the matching spring rod 452 to match is provided on the right side of the transverse section of the matching block 323, and a side of the left end of the matching spring rod 452 away from the matching block 323 is set as an inclined surface.

[0063] The impact piece 45 is used to impact the telescopic end of the pressurized spring rod 42; specifically, firstly, the corresponding connecting plate 322 is selected according to the diameter of the screw rotor, and the corresponding mounting plate 321 is installed on the annular sleeve 32, so that the friction ball 43 fits the outer side of the screw rotor. At this time, the position of the matching spring rod 452 can correspond to the position of the matching block 323. When the transmission ring 34 rotates back and forth, the transmission ring 34 drives the matching spring rod 452 to move synchronously through the impact spring rod 451.

[0064] When the mating spring rod 452 moves to the corresponding position of the mating block 323, the mating spring rod 452 and the inclined surface of the mating block 323 cooperate to drive the impact spring rod 451 to move away from the middle of the annular sleeve 32. When the mating spring rod 452 and the mating block 323 are separated, the impact spring rod 451 can impact the square plate 421, so that the square plate 421 drives the friction ball 43 to impact the surface of the screw rotor through the telescopic end of the pressurized spring rod 42, so that the friction ball 43 impacts the friction screw rotor, thereby simulating the friction state of particulate impurities impacting the surface of the friction screw rotor during actual operation of the screw rotor, further ensuring the use effect of the screw rotor, and at the same time, the inclined surface of the mating spring rod 452 can cooperate with the mating block 323 to compress the telescopic end of the mating spring rod 452, so as not to interfere with the reciprocating rotation of the transmission ring 34.

[0065] See also Fig.10The locking piece 44 includes a clamping plate 441 radially slidably installed on the telescopic end of the pressure spring rod 42, and the left end of the clamping plate 441 radially slides through the telescopic end of the pressure spring rod 42, and a top spring 442 is connected between the clamping plate 441 and the pressure spring rod 42, and a locking rod 443 is fixedly installed on one side of the clamping plate 441 close to the middle of the annular sleeve 32, and a matching hole for cooperating with the locking rod 443 to lock the rotating shaft of the friction ball 43 is opened on the rotating shaft of the friction ball 43.

[0066] The locking piece 44 is used to lock the rotating shaft of the friction ball 43; specifically, when the impact spring rod 451 moves in the direction away from the middle of the annular sleeve 32, the impact spring rod 451 drives the unlocking plate 453 to move in the direction away from the middle of the annular sleeve 32, and when the unlocking plate 453 gradually moves in the direction away from the middle of the annular sleeve 32 to the extreme position, the unlocking plate 453 can drive the locking rod 443 to move out of the matching hole of the rotating shaft of the friction ball 43 through the locking plate 441, thereby enabling the friction ball 43 to rotate the surface of the friction screw rotor.

[0067] When the impact spring rod 451 returns to its initial position, the locking rod 443 is driven by the locking plate 441 to return to its initial position under the action of the extension spring 442. At the same time, the locking rod 443 can be pressed against the outside of the rotating shaft of the friction ball 43. When the matching hole of the rotating shaft of the friction ball 43 is rotated to the corresponding position of the locking rod 443 again, the locking rod 443 can be inserted into the matching hole again to lock the rotating shaft of the friction ball 43, so that the friction ball 43 slides and rubs the surface of the screw rotor, thereby realizing the combination of rolling friction and sliding friction to detect the wear resistance of the screw rotor and ensure the later use effect of the screw rotor.

[0068] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A screw gas compressor assembly performance detection device, comprising a base, two clamping units arranged on the left and right are installed on the upper end of the base, the clamping units are used to clamp the screw rotor and drive the screw rotor to rotate, and detection units are distributed above the base, characterized in that: A conformal unit is installed in the middle of the upper end of the base, and the detection unit is installed on the conformal unit; The conforming unit comprises an annular sleeve slidably mounted on the middle of the upper end of the base, a return spring is connected between the annular sleeve and the base, a transmission ring is rotatably mounted on the inner side of the annular sleeve through a plurality of guide springs, a conforming rod is threadedly connected to the lower inner side of the annular sleeve, and the upper end of the conforming rod slides through the transmission ring, and a matching piece for driving the transmission ring to reciprocate is mounted on the rear end of the upper side of the base; The detection unit includes an arc-shaped slider slidably mounted on the transmission ring and arranged symmetrically on the center, a pressure spring rod is radially slidably mounted on one side of the arc-shaped slider close to the middle of the transmission ring, a friction ball is rotatably mounted on one side of the pressure spring rod close to the middle of the transmission ring, a locking piece for locking the rotating shaft of the friction ball is mounted on the telescopic end of the pressure spring rod, an impact piece for impacting the telescopic end of the pressure spring rod is mounted on the side of the fixed end of the pressure spring rod close to the center of the transmission ring, a follower is connected between the transmission ring and the pressure spring rod, and the follower is used to cooperate with the screw rotor to drive the pressure spring rod to slide radially synchronously.

2. A screw gas compressor component performance testing device according to claim 1, characterized in that: The clamping unit includes a vertical plate, wherein the left vertical plate is fixedly connected to the base, and the right vertical plate is connected to the base for left and right sliding via an adjusting member, and a rotating plate is rotatably installed on the vertical plate, wherein an active member is connected between the left rotating plate and the base, and multiple circumferentially evenly arranged clamping plates are radially slidably installed on opposite sides of the two rotating plates via synchronous members.

3. A screw gas compressor component performance testing device according to claim 2, characterized in that: An arc groove is provided at the position corresponding to the pressure spring rod at the right end of the transmission ring, and the follower includes an arc plate slidably installed in the arc groove, an arc spring is connected between the arc plate and the arc groove, an arc hole is provided at the position corresponding to the pressure spring rod, a sliding plate with an arc structure is slidably installed in the arc hole, an inclined groove is provided on the sliding plate, a round rod is slidably installed in the inclined groove, and one end of the round rod close to the transmission ring radially slides through the arc slider and is fixedly connected to the corresponding pressure spring rod.

4. A screw gas compressor component performance testing device according to claim 3, characterized in that: The inner wall of the transmission ring is radially slidably installed with two connecting sleeves arranged symmetrically front and back, and a driven rod is threadedly connected to one side of the connecting sleeve close to the middle of the transmission ring. The arc plate is provided with an inclined matching groove at a position corresponding to the connecting sleeve, and a matching rod is slidably installed in the matching groove. One end of the matching rod close to the transmission ring radially slides through the transmission ring and is fixedly connected to the connecting sleeve.

5. The screw gas compressor component performance testing device according to claim 3, characterized in that: The outer side of the annular sleeve is provided with through holes at positions corresponding to the arc-shaped sliders, the outer side of the arc plate is provided with multiple circular holes evenly arranged in the circumferential direction at positions corresponding to the sliding plate and the outer side of the transmission ring is provided with positions corresponding to the arc-shaped sliders, and locking screws are detachably installed in the circular holes, and the outer side of the sliding plate and the outer side of the arc-shaped slider are provided with locking holes for cooperating with the corresponding locking screws.

6. The screw gas compressor component performance testing device according to claim 3, characterized in that: An L-shaped toggle rod is fixedly installed on the right end of the arc plate, and two L-shaped limit plates arranged on opposite sides are slidably installed on the upper end of the adjusting member through a connecting spring. An inclined surface for cooperating with the toggle rod is provided on the left side of the transverse section of the limit plate, and an L-shaped plate is fixedly installed at the position corresponding to the limit plate on the right end of the annular sleeve, and the back sides of the right ends of the two L-shaped plates are arranged to be inclined surfaces for driving the two limit plates to move away from each other.

7. The screw gas compressor component performance testing device according to claim 1, characterized in that: The impact member includes a fixed plate fixedly installed on the left end of the fixed end of the pressure spring rod close to the middle of the transmission ring, an impact spring rod is slidably installed on the fixed plate, a matching spring rod is fixedly installed on the left end of the impact spring rod away from the middle of the transmission ring, an unlocking plate is fixedly installed on the right end of the impact spring rod close to the middle of the transmission ring, a square plate is fixedly installed on the left end of the telescopic end of the pressure spring rod close to the middle of the transmission ring, and the square plate and the impact spring rod are arranged in contact.

8. The screw gas compressor component performance testing device according to claim 7, characterized in that: A mounting plate is detachably mounted at the position of the impact spring rod at the inner left end of the annular sleeve, a connecting plate with an arc structure is fixedly mounted on one side of the mounting plate close to the middle of the annular sleeve, a plurality of matching blocks with L-shaped structures evenly arranged circumferentially are fixedly mounted on one side of the connecting plate close to the middle of the annular sleeve, an inclined surface for driving the matching spring rod to match is provided on the right side of the transverse section of the matching block, and a side of the left end of the matching spring rod away from the matching block is set to an inclined surface.

9. The screw gas compressor component performance testing device according to claim 7, characterized in that: The locking member includes a clamping plate radially slidably installed on the telescopic end of the pressure spring rod, and the left end of the clamping plate radially slides through the telescopic end of the pressure spring rod, a top extension spring is connected between the clamping plate and the pressure spring rod, a locking rod is fixedly installed on one side of the clamping plate close to the middle of the annular sleeve, and a matching hole for cooperating with the locking rod to lock the friction ball rotating shaft is opened on the friction ball rotating shaft.

10. The screw gas compressor component performance testing device according to claim 1, characterized in that: The mating part includes a plurality of mating plates fixedly mounted on the rear end of the upper side of the base and evenly arranged on the left and right sides. The left and right sides of the upper ends of the mating plates are both arranged as inclined surfaces. A transmission rod is fixedly mounted on the rear part of the transmission ring. The rear end of the transmission rod slides through the annular sleeve. The transmission rod is used to cooperate with the inclined surface of the mating plate to drive the transmission ring to rotate.

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