A lifting valve testing device

Abstract

The invention discloses a lifting valve testing device, which relates to the field of valve testing technology, including a mounting mechanism, on which a camshaft lifting valve is mounted, the camshaft lifting valve is rotatably connected to the mounting mechanism, a guide rail frame is arranged on the mounting column, a clamping guide rail is arranged in the guide rail frame, the mounting mechanism and the guide rail frame are slidingly mounted, a climbing assembly is arranged between the mounting mechanism and the guide rail frame, a sealing testing mechanism is connected to the bottom of the camshaft lifting valve, a dust releasing mechanism is arranged on the top of the camshaft lifting valve, and the dust releasing mechanism evenly releases fluorescent powder to the inner side of the camshaft lifting valve; when the sealing of the camshaft lifting valve does not meet the standard, the fluorescent powder will enter the transparent tube, and the illumination detection is carried out in a dark light environment in combination with the lighting beads, so as to realize the sealing effect detection of the camshaft lifting valve.

Description

Technical Field

[0001] The invention relates to the technical field of valve testing, in particular to a lifting valve testing device. Background Art

[0002] Camshaft lift valves are usually used in variable valve timing or variable valve lift systems of engines. Their function is to change the valve opening and closing time, lift and other parameters according to the working conditions of the engine by controlling hydraulic or electronic signals, so as to optimize engine performance, improve fuel economy and reduce emissions.

[0003] The camshaft lift valve controls the intake and exhaust volume by adjusting the valve opening, closing and opening and closing angles by controlling the cam rotation angle. The sealing effect of the camshaft lift valve needs to be tested during the production stage. The existing camshaft lift valve lacks supporting sealing testing tools. For camshaft lift valves with slight leakage, the detection accuracy is poor. Summary of the invention

[0004] The object of the present invention is to provide a lift valve testing device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A lifting valve testing device comprises a base, a mounting column is provided on the base, a mounting mechanism is provided on the base, a camshaft lifting valve is installed on the mounting mechanism, the camshaft lifting valve is rotatably connected to the mounting mechanism, a guide rail frame is provided on the mounting column, a snap-on guide rail is provided in the guide rail frame, the mounting mechanism and the guide rail frame are slidingly mounted, a climbing assembly is provided between the mounting mechanism and the guide rail frame, a sealing testing mechanism is connected to the bottom of the camshaft lifting valve, a dust release mechanism is provided on the top of the camshaft lifting valve, and the dust release mechanism evenly releases fluorescent powder to the inner side of the camshaft lifting valve.

[0007] The sealing test mechanism includes a transparent tube, on which a docking tube is provided, the docking tube is docked with the end of the camshaft lifting valve, the docking tube and the end of the camshaft lifting valve are sealed and connected by two sealing shells that are snapped together, and plugging heads are provided at both ends of the transparent tube, and solenoid valves are provided on the plugging heads, and the solenoid valves are connected to a blower, wherein a lighting lamp bead is provided on the plugging head on one side, and a dust removal net is provided on the plugging head on the other side.

[0008] As a further solution of the present invention: a connecting plate 1 is fixedly provided on the butt-jointed pipe, four matching slide grooves are symmetrically provided on the connecting plate 1, a connecting stud is provided at the end of the sealing shell, a connecting nut is matched with the connecting stud, a connecting column is sleeved on the upper limit of the connecting nut, the connecting column facing the side of the connecting plate 1 is slidably engaged with the matching slide groove, a fastening frame is provided between the connecting columns on the sealing shells on both sides, a locking plate is provided at the end of the fastening frame, the fastening frame and the locking plate are tightly connected by bolts, so that the sealing shells on both sides are respectively sealed and connected to the butt-jointed pipe and the end of the camshaft lifting valve.

[0009] As a further solution of the present invention: the installation mechanism includes a lifting frame slidably installed with the guide rail frame, a rotating frame is rotatably installed on the lifting frame, swing frames are rotatably installed on both sides of the rotating frame, connecting frames are provided at the ends of the swing frames, extension plates are telescopically installed on the connecting frames, brackets are provided at the ends of the extension plates, the brackets are fixedly connected to the edges of the camshaft lifting valves, side frames are fixedly provided on the sides of the rotating frame, motor 1 is provided on the side frames, the motor 1 is connected to a contact cam, the contact cam is installed in contact with the valve stem of the camshaft lifting valve, and a rotating assembly is provided between the rotating frame and the lifting frame 1.

[0010] As a further solution of the present invention: the rotating assembly includes a clamping ring arranged at the center of the rotating frame, a matching section is arranged at the center of the lifting frame one, the clamping ring and the matching section are rotatably fitted, a matching gear ring is arranged at the end of the matching section, a fixed frame is arranged on the rotating frame, a motor three is arranged on the fixed frame, the motor three is connected to a matching gear two, and the matching gear two and the matching gear ring are meshed with each other.

[0011] As a further solution of the present invention: the climbing assembly includes a mating slider arranged on the lifting frame 1, and the lifting frame 1 is slidably installed with the clamping guide rail through the mating slider, a vertical rack is arranged on one side of the guide rail frame, and a motor 2 is fixedly arranged on the end of the mating gear ring, and the motor 2 is connected to a mating gear 1, and the mating gear 1 is meshed with the vertical rack.

[0012] As a further scheme of the present invention: the dust release mechanism includes an adjusting motor arranged on the top of the mounting column, the adjusting motor is connected to a top plate, an extension column is arranged at the end of the top plate, the extension column is provided with a connecting plate 2, a storage barrel is arranged on the connecting plate 2, a feeding pipe is arranged on the storage barrel, a feeding motor is arranged at the edge of the feeding pipe, the feeding motor is connected to a feeding rod, the feeding rod and the feeding pipe are rotatably installed, the feeding rod is evenly provided with grooves, a through feeding trough is arranged in the feeding pipe, the feeding pipe is connected to a folding hose, a docking frame is arranged at the end of the folding hose, the docking frame is docked with the top of the camshaft lifting valve, a lifting motor is arranged on the connecting plate 2, the lifting motor is connected to a lifting frame 2, horizontal plug-in columns are symmetrically arranged on the lifting frame, and a mating block which is plugged into the plug-in column is arranged at the edge of the docking frame.

[0013] As a further solution of the present invention: a cleaning assembly is arranged on the side of the mounting column, and the cleaning assembly includes an L-shaped frame connected to the mounting column, a telescopic motor is arranged on the L-shaped frame, an adsorption head is connected to the output shaft of the telescopic motor, and when the camshaft lifting valve rotates to a horizontal state, the adsorption head and the end of the camshaft lifting valve are docked with each other, and an adsorption mesh cover is arranged on the inner side of the adsorption head.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] (1) The camshaft lift valve is installed vertically through the installation mechanism. During the test, the fluorescent powder is released from the upper side of the camshaft lift valve in combination with the dust release mechanism. In the sealing test mechanism, by starting the blower on one side, negative pressure is formed in the transparent tube. If the sealing effect of the camshaft lift valve does not meet the standard, air containing fluorescent powder will enter the transparent tube. After the blower is interrupted, the lighting bead is turned on to illuminate the transparent tube for a period of time and then turned off. In a dark light environment, luminous fluorescent powder particles can be observed in the transparent tube, thereby concluding that the sealing of the camshaft lift valve does not meet the standard; otherwise, it can be considered that the sealing effect of the camshaft lift valve meets the standard.

[0016] (2) The swing frame and the telescopically installed extension plate form a support installation on both sides of the camshaft lift valve. The telescopic installation of the extension plate can realize the installation of camshaft lift valves of different sizes. At the same time, in order to realize the rotation adjustment of the camshaft lift valve, the swing frame is connected to the rotating frame, and the rotating frame is installed with the lifting frame through the rotating assembly, which is convenient for controlling the rotation of the camshaft lift valve after completing the sealing test, adjusting the posture of the camshaft lift valve, and realizing the cleaning operation inside the camshaft lift valve.

[0017] (3) After the camshaft lifting valve is installed vertically, the top plate is driven to rotate by adjusting the motor, and the extension column is used to align the docking frame at the bottom of the storage barrel with the upper end of the camshaft lifting valve. The lifting motor is used to control the lowering of the lifting frame 2 so that the docking frame is docked with the upper end of the camshaft lifting valve. After the docking is completed, the sealing test mechanism connected to the bottom of the camshaft lifting valve is started, and then the feeding motor is controlled to start, driving the feeding rod to rotate, so that the groove on the feeding rod carries the fluorescent powder dust into the camshaft lifting valve to participate in the sealing test of the camshaft lifting valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 It is a schematic diagram of the connection structure between the camshaft lift valve and the sealing test mechanism in the present invention.

[0020] Figure 3 for Figure 2 Enlarged structural diagram at A in the middle.

[0021] Figure 4 It is a structural schematic diagram of the sealing shell in the present invention.

[0022] Figure 5 Schematic diagram of the internal structure of the transparent tube in the present invention.

[0023] Figure 6 It is a structural schematic diagram of the installation mechanism in the present invention.

[0024] Figure 7 It is a schematic diagram of the split structure of the lifting frame 1 and the rotating frame in the present invention.

[0025] Figure 8 It is a structural schematic diagram of the dust release mechanism in the present invention.

[0026] Fig. 9 It is a schematic diagram of the separation structure of the feeding tube and the feeding rod in the present invention.

[0027] Fig.10 It is a schematic diagram of the structure of the cleaning component in the present invention.

[0028] In the figure: 1, base; 10, mounting column; 2, guide rail frame; 20, clamping guide rail; 21, vertical rack; 3, mounting mechanism; 30, lifting frame 1; 300, matching slider; 301, matching section; 302, matching gear ring; 303, motor 2; 304, matching gear 1; 31, rotating frame; 310, clamping ring; 311, fixed frame; 312, motor 3; 313, matching gear 2; 32, side frame; 33, motor 1; 34, contact cam; 36, swing frame; 360, connecting frame; 37, extension plate; 38, bracket; 4, camshaft lifting valve; 5, sealing test mechanism; 50, sealing shell; 51, transparent tube; 52, butt tube; 53, connecting plate 1; 54, matching slide groove; 55 , connecting column; 56, fastening frame; 57, locking plate; 58, connecting nut; 59, connecting stud; 510, sealing head; 511, lighting lamp beads; 512, solenoid valve; 513, blower; 514, dust removal net; 6, dust release mechanism; 60, top plate; 61, adjustment motor; 62, connecting plate two; 63, extension column; 64, storage barrel; 65, discharge pipe; 650, discharge trough; 66, discharge motor; 660, discharge rod; 661, groove; 67, docking frame; 670, folding hose; 610, lifting motor; 611, lifting frame two; 612, plug-in column; 613, matching block; 7, cleaning component; 70, L-shaped frame; 71, telescopic motor; 72, adsorption head; 74, adsorption mesh cover. DETAILED DESCRIPTION

[0029] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0030] like Figure 1 As shown, a lifting valve testing device includes a base 1, a mounting column 10 is provided on the base 1, a mounting mechanism 3 is provided on the base 1, a camshaft lifting valve 4 is installed on the mounting mechanism 3, the camshaft lifting valve 4 is rotatably connected to the mounting mechanism 3, a guide rail frame 2 is provided on the mounting column 10, a snap-on guide rail 20 is provided in the guide rail frame 2, the mounting mechanism 3 and the guide rail frame 2 are slidingly installed, a climbing assembly is provided between the mounting mechanism 3 and the guide rail frame 2, a sealing testing mechanism 5 is connected to the bottom of the camshaft lifting valve 4, a dust release mechanism 6 is provided on the top of the camshaft lifting valve 4, and the dust release mechanism 6 evenly releases fluorescent powder to the inner side of the camshaft lifting valve 4.

[0031] like Figure 2 , Figure 5As shown, the sealing test mechanism 5 includes a transparent tube 51, on which a docking tube 52 is provided, and the docking tube 52 is docked with the end of the camshaft lifting valve 4, and the docking tube 52 and the end of the camshaft lifting valve 4 are sealed and connected by two sealing shells 50 that are snapped together, and plugging heads 510 are provided at both ends of the transparent tube 51, and a solenoid valve 512 is provided on the plugging head 510, and the solenoid valve 512 is connected to a blower 513, wherein a lighting lamp bead 511 is provided on the plugging head 510 on one side, and a dust removal net 514 is provided on the plugging head 510 on the other side.

[0032] Specifically, the camshaft lift valve 4 is vertically installed through the installation mechanism 3. During the test, the fluorescent powder is released from the upper side of the camshaft lift valve 4 in combination with the dust release mechanism 6. In the sealing test mechanism 5, by starting the blower 513 on one side, a negative pressure is formed in the transparent tube 51. If the sealing effect of the camshaft lift valve 4 does not meet the standard, the air containing the fluorescent powder will enter the transparent tube 51. After the blower 513 is interrupted, the lighting lamp 511 is turned on to illuminate the transparent tube 51 for a period of time and then turned off. In a dark light environment, it can be observed that there are luminous fluorescent powder particles in the transparent tube 51, thereby drawing a conclusion that the sealing of the camshaft lift valve 4 does not meet the standard; otherwise, it can be considered that the sealing effect of the camshaft lift valve 4 meets the standard.

[0033] More specifically, blowers 513 are provided on both sides of the transparent tube 51, wherein the blowers 513 are capable of bidirectional blowing. After the test is completed, the blowers 513 on both sides blow air into the transparent tube 51. When the camshaft lifting valve 4 is opened, the airflow will enter the camshaft lifting valve 4 from the docking tube 52, thereby cleaning the fluorescent powder particles in the transparent tube 51 and the lifting valve for easy use in the next test.

[0034] Further, such as Figure 3 , Figure 4 As shown, a connecting plate 53 is fixedly provided on the butt-jointed pipe 52, and four matching slide grooves 54 are symmetrically provided on the connecting plate 53. A connecting stud 59 is provided at the end of the sealing shell 50, and a connecting nut 58 is matched with the connecting stud 59. A connecting column 55 is sleeved on the upper limit position of the connecting nut 58. The connecting column 55 on the side of the connecting plate 53 is slidably engaged with the matching slide groove 54. A fastening frame 56 is provided between the connecting columns 55 on the sealing shells 50 on both sides, and a locking plate 57 is provided at the end of the fastening frame 56. The fastening frame 56 and the locking plate 57 are tightly connected by bolts, so that the sealing shells 50 on both sides are sealed and connected to the butt-jointed pipe 52 and the end of the camshaft lifting valve 4 respectively.

[0035] Specifically, the butt-joint pipe 52 and the end of the camshaft lifting valve 4 are sealed and connected via a sealing shell 50 that is snapped together, wherein the end of the sealing shell 50 is combined with a connecting stud 59 to install a connecting nut 58 and a connecting column 55, and the connecting columns 55 are fastened together via a fastening frame 56, a locking plate 57, and bolts, so that the sealing shells 50 on both sides are sealed and combined with the end of the butt-joint pipe 52 and the camshaft lifting valve 4 to ensure reliability during the sealing test.

[0036] Further, such as Figure 6 As shown, the mounting mechanism 3 includes a lifting frame 30 slidably mounted with the guide rail frame 2, a rotating frame 31 is rotatably mounted on the lifting frame 30, swing frames 36 are rotatably mounted on both sides of the rotating frame 31, a connecting frame 360 ​​is arranged at the end of the swing frame 36, an extension plate 37 is telescopically mounted on the connecting frame 360, a bracket 38 is arranged at the end of the extension plate 37, the bracket 38 is fixedly connected to the edge of the camshaft lifting valve 4, a side frame 32 is fixedly arranged on the side of the rotating frame 31, a motor 33 is arranged on the side frame 32, the motor 33 is connected to the contact cam 34, the contact cam 34 is installed in contact with the valve stem of the camshaft lifting valve 4, and a rotating component is arranged between the rotating frame 31 and the lifting frame 30.

[0037] Specifically, the swing frame 36 and the telescopically installed extension plate 37 form a support installation on both sides of the camshaft lift valve 4. The telescopic installation of the extension plate 37 can realize the installation of camshaft lift valves 4 of different sizes. At the same time, in order to realize the rotation adjustment of the camshaft lift valve 4, the swing frame 36 is connected to the rotating frame 31, and the rotating frame 31 is rotatably installed with the lifting frame 1 30 through the rotating assembly, so as to control the rotation of the camshaft lift valve 4 after completing the sealing test, adjust the posture of the camshaft lift valve 4, and realize the cleaning operation of the inside of the camshaft lift valve 4.

[0038] Further, such as Figure 7 As shown, the rotating assembly includes a clamping ring 310 arranged at the center of the rotating frame 31, a matching section 301 is arranged at the center of the lifting frame 30, the clamping ring 310 and the matching section 301 are rotatably mounted, a matching ring gear 302 is arranged at the end of the matching section 301, a fixed frame 311 is arranged on the rotating frame 31, a motor three 312 is arranged on the fixed frame 311, the motor three 312 is connected to a matching gear two 313, and the matching gear two 313 and the matching ring gear 302 are meshed with each other.

[0039] Specifically, the rotating frame 31 is rotatably installed between the clamping ring 310 and the matching section 301. When the motor three 312 drives the matching gear two 313 to engage with the matching gear ring 302, the rotating frame 31 will rotate around the center of the matching section 301, thereby driving the camshaft lift valve 4 to rotate and adjust.

[0040] Further, such as Figure 7 As shown, the climbing assembly includes a mating slider 300 arranged on a lifting frame 30, and the lifting frame 30 is slidably installed with the clamping guide rail 20 through the mating slider 300. A vertical rack 21 is arranged on one side of the guide rail frame 2, and a motor 2 303 is fixedly arranged at the end of the mating gear ring 302. The motor 2 303 is connected to a mating gear 1 304, and the mating gear 1 304 is meshed with the vertical rack 21.

[0041] Specifically, in order to avoid interference from the dust release mechanism 6 and the bottom base 1 when adjusting the camshaft lift valve 4, the lifting and lowering adjustment of the camshaft lift valve 4 is achieved through the guide frame 2, the vertical rack 21, the motor 2 303, and the matching gear 1 304.

[0042] Further, such as Figure 8 , Fig. 9 As shown, the dust release mechanism 6 includes an adjustment motor 61 arranged on the top of the mounting column 10, the adjustment motor 61 is connected to a top plate 60, an extension column 63 is arranged at the end of the top plate 60, the extension column 63 is provided with a second connecting plate 62, a storage barrel 64 is arranged on the second connecting plate 62, a discharge pipe 65 is arranged on the storage barrel 64, a discharge motor 66 is arranged at the edge of the discharge pipe 65, the discharge motor 66 is connected to a discharge rod 660, the discharge rod 660 is rotatably installed with the discharge pipe 65, and the discharge rod 660 is evenly distributed on the discharge rod 660. A groove 661 is provided, a through discharge trough 650 is provided in the discharge pipe 65, the discharge pipe 65 is connected with a folding hose 670, a docking frame 67 is provided at the end of the folding hose 670, the docking frame 67 is docked with the top of the camshaft lifting valve 4, a lifting motor 610 is provided on the connecting plate 2 62, the lifting motor 610 is connected with a lifting frame 2 611, and horizontal plug-in columns 612 are symmetrically provided on the lifting frame 2 611, and a matching block 613 which is plugged with the plug-in column 612 is provided at the edge of the docking frame 67.

[0043] Specifically, when the camshaft lifting valve 4 is installed vertically, the top plate 60 is driven to rotate by adjusting the motor 61, and the extension column 63 is combined to align the docking frame 67 at the bottom of the storage barrel 64 with the upper end of the camshaft lifting valve 4. The lifting motor 610 is used to control the lifting frame 2 611 to descend, so that the docking frame 67 is docked with the upper end of the camshaft lifting valve 4. After the docking is completed, the sealing test mechanism 5 connected to the bottom of the camshaft lifting valve 4 is started, and then the unloading motor 66 is controlled to start, driving the unloading rod 660 to rotate, so that the groove 661 on the unloading rod 660 carries the fluorescent powder dust into the camshaft lifting valve 4 to participate in the sealing test of the camshaft lifting valve 4.

[0044] Further, such as Fig.10 As shown, a cleaning assembly 7 is provided on the side of the mounting column 10, and the cleaning assembly 7 includes an L-shaped frame 70 connected to the mounting column 10, and a telescopic motor 71 is provided on the L-shaped frame 70. An adsorption head 72 is connected to the output shaft of the telescopic motor 71, and when the camshaft lifting valve 4 rotates to a horizontal state, the adsorption head 72 and the end of the camshaft lifting valve 4 are docked with each other, and an adsorption mesh cover 74 is provided on the inner side of the adsorption head 72.

[0045] Specifically, after the camshaft lifting valve 4 completes the test, the fluorescent powder inside needs to be cleaned. The camshaft lifting valve 4 is controlled to rotate to a horizontal state through the rotating component, and the camshaft lifting valve 4 is controlled to be adjusted to the same height as the adsorption head 72 in combination with the climbing component. The adsorption head 72 is controlled to dock with the end of the camshaft lifting valve 4 through the telescopic motor 71, and then the blowers 513 at both ends of the transparent tube 51 are controlled to blow air into the transparent tube 51, and the camshaft lifting valve 4 is opened, so that the airflow enters the camshaft lifting valve 4 through the docking tube 52, and is then adsorbed by the adsorption mesh cover 74 inside the adsorption head 72 and discharged, thereby achieving the cleaning and adsorption of the fluorescent powder.

[0046] The working principle of the embodiment of the present invention is:

[0047] like Figure 1-Figure 10As shown, the camshaft lift valve 4 is vertically installed through the installation mechanism 3. During the test, the fluorescent powder is released from the upper side of the camshaft lift valve 4 in combination with the dust release mechanism 6. In the sealing test mechanism 5, by starting the blower 513 on one side, a negative pressure is formed in the transparent tube 51. If the sealing effect of the camshaft lift valve 4 does not meet the standard, air containing fluorescent powder will enter the transparent tube 51. After the blower 513 is interrupted, the lighting lamp 511 is turned on to illuminate the transparent tube 51 for a period of time and then turned off. In a dark light environment, it can be observed that there are luminous fluorescent powder particles in the transparent tube 51, thereby drawing a conclusion that the sealing of the camshaft lift valve 4 does not meet the standard; otherwise, it can be considered that the sealing effect of the camshaft lift valve 4 meets the standard. Blowers 513 are arranged on both sides of the transparent tube 51, wherein the blowers 513 are bidirectional blowers. After the test is completed, the blowers 513 on both sides blow air into the transparent tube 51. When the camshaft lifting valve 4 is opened, the airflow will enter the camshaft lifting valve 4 from the docking tube 52, thereby cleaning the fluorescent powder particles in the transparent tube 51 and the lifting valve, which is convenient for the next test. The swing frame 36 and the telescopically installed extension plate 37 form a support installation on both sides of the camshaft lifting valve 4. The telescopic installation of the extension plate 37 can realize the installation of camshaft lifting valves 4 of different sizes. At the same time, in order to realize the rotation adjustment of the camshaft lifting valve 4, the swing frame 36 is connected to the rotating frame 31, and the rotating frame 31 is rotatably installed with the lifting frame 30 through the rotating assembly, so as to control the rotation of the camshaft lifting valve 4 after completing the sealing test, adjust the posture of the camshaft lifting valve 4, and realize the cleaning operation inside the camshaft lifting valve 4. When the camshaft lifting valve 4 is installed vertically, the top plate 60 is driven to rotate by adjusting the motor 61, and the extension column 63 is combined to align the docking frame 67 at the bottom of the storage barrel 64 with the upper end of the camshaft lifting valve 4. The lifting motor 610 is used to control the lifting frame 2 611 to descend, so that the docking frame 67 is docked with the upper end of the camshaft lifting valve 4. After the docking is completed, the sealing test mechanism 5 connected to the bottom of the camshaft lifting valve 4 is started, and then the unloading motor 66 is controlled to start, driving the unloading rod 660 to rotate, so that the groove 661 on the unloading rod 660 carries the fluorescent powder dust into the camshaft lifting valve 4 to participate in the sealing test of the camshaft lifting valve 4.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. Any reference numeral in a claim shall not be regarded as limiting the claim involved.

[0049] 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 poppet valve testing device, comprising a base (1), wherein a mounting column (10) is arranged on the base (1), characterized in that: The base (1) is provided with a mounting mechanism (3), the mounting mechanism (3) being provided with a camshaft lifting valve (4), the camshaft lifting valve (4) being rotatably connected to the mounting mechanism (3), the mounting column (10) being provided with a guide rail frame (2), a clamping guide rail (20) being provided inside the guide rail frame (2), the mounting mechanism (3) and the guide rail frame (2) being slidably mounted, a climbing assembly being provided between the mounting mechanism (3) and the guide rail frame (2), the bottom of the camshaft lifting valve (4) being connected with a sealing test mechanism (5), the top of the camshaft lifting valve (4) being provided with a dust release mechanism (6), the dust release mechanism (6) being configured to uniformly release fluorescent powder toward the inner side of the camshaft lifting valve (4); The sealing test mechanism (5) comprises a transparent tube (51), the transparent tube (51) being provided with a butt-jointed tube (52), the butt-jointed tube (52) being butt-jointed with the end of a camshaft lifting valve (4), the butt-jointed tube (52) and the end of the camshaft lifting valve (4) being sealed and connected via two sealing shells (50) that are snapped together, plugging heads (510) being provided at both ends of the transparent tube (51), the plugging heads (510) being provided with a solenoid valve (512), the solenoid valve (512) being connected to a blower (513), the plugging head (510) on one side being provided with an illumination lamp bead (511), and the plugging head (510) on the other side being provided with a dust removal net (514); The dust release mechanism (6) comprises an adjustment motor (61) arranged on the top of the mounting column (10), the adjustment motor (61) being connected to a top plate (60), an extension column (63) being arranged at the end of the top plate (60), the extension column (63) being provided with a second connecting plate (62), a material storage barrel (64) being arranged on the second connecting plate (62), a material storage barrel (64) being provided with a material discharge pipe (65), a material discharge motor (66) being arranged at the edge of the material discharge pipe (65), the material discharge motor (66) being connected to a material discharge rod (660), the material discharge rod (660) being rotatably mounted on the material discharge pipe (65), and a uniform distribution of dust on the material discharge rod (660) A groove (661) is provided, a through material discharge trough (650) is provided in the material discharge pipe (65), the material discharge pipe (65) is connected to a folding hose (670), a docking frame (67) is provided at the end of the folding hose (670), the docking frame (67) and the top of the camshaft lifting valve (4) are docked with each other, a lifting motor (610) is provided on the connecting plate 2 (62), the lifting motor (610) is connected to the lifting frame 2 (611), the lifting frame 2 (611) is symmetrically provided with horizontal plug-in columns (612), and the edge of the docking frame (67) is provided with a matching block (613) that is plugged with the plug-in column (612).

2. A poppet valve testing device according to claim 1, characterized in that: A connecting plate 1 (53) is fixedly provided on the butt-joint pipe (52), and four matching slide grooves (54) are symmetrically provided on the connecting plate 1 (53). A connecting stud (59) is provided at the end of the sealing shell (50), and a connecting nut (58) is matched with the connecting stud (59). A connecting column (55) is sleeved on the upper limit position of the connecting nut (58), and the connecting column (55) facing the side of the connecting plate 1 (53) is slidably engaged with the matching slide groove (54). A fastening frame (56) is provided between the connecting columns (55) on the sealing shells (50) on both sides, and a locking plate (57) is provided at the end of the fastening frame (56). The fastening frame (56) and the locking plate (57) are tightly connected by bolts, so that the sealing shells (50) on both sides are sealed and connected to the butt-joint pipe (52) and the end of the camshaft lifting valve (4) respectively.

3. A poppet valve testing device according to claim 1, characterized in that: The mounting mechanism (3) comprises a lifting frame (30) slidably mounted on the guide rail frame (2); a rotating frame (31) is rotatably mounted on the lifting frame (30); swing frames (36) are rotatably mounted on both sides of the rotating frame (31); a connecting frame (360) is provided at the end of the swing frame (36); an extension plate (37) is telescopically mounted on the connecting frame (360); a bracket (38) is provided at the end of the extension plate (37); the bracket (38) is fixedly connected to the edge of the camshaft lifting valve (4); a side frame (32) is fixedly mounted on the side of the rotating frame (31); a motor (33) is provided on the side frame (32); the motor (33) is connected to a contact cam (34); the contact cam (34) is contact-mounted with a valve stem of the camshaft lifting valve (4); and a rotating assembly is provided between the rotating frame (31) and the lifting frame (30).

4. A poppet valve testing device according to claim 3, characterized in that: The rotating assembly comprises a clamping ring (310) arranged at the center of the rotating frame (31); a matching section (301) is arranged at the center of the lifting frame (30); the clamping ring (310) and the matching section (301) are rotatably mounted; a matching ring gear (302) is arranged at the end of the matching section (301); a fixed frame (311) is arranged on the rotating frame (31); a motor (312) is arranged on the fixed frame (311); the motor (312) is connected to a matching gear (313); and the matching gear (313) and the matching ring gear (302) are meshed with each other.

5. A poppet valve testing device according to claim 4, characterized in that: The climbing assembly comprises a matching slider (300) arranged on a lifting frame (30), the lifting frame (30) is slidably mounted on the clamping guide rail (20) via the matching slider (300), a vertical rack (21) is arranged on one side of the guide rail frame (2), a motor (303) is fixedly arranged at the end of the matching gear ring (302), the motor (303) is connected to a matching gear (304), and the matching gear (304) and the vertical rack (21) are meshed with each other.

6. A poppet valve testing device according to claim 5, characterized in that: A cleaning assembly (7) is arranged on the side of the mounting column (10), the cleaning assembly (7) comprising an L-shaped frame (70) connected to the mounting column (10), a telescopic motor (71) being arranged on the L-shaped frame (70), an adsorption head (72) being connected to the output shaft of the telescopic motor (71), the adsorption head (72) and the end of the camshaft lifting valve (4) being butted against each other when the camshaft lifting valve (4) is rotated to a horizontal state, and an adsorption mesh cover (74) is arranged on the inner side of the adsorption head (72).

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