CN116105924A

CN116105924A - Pressure-resistant fatigue test device for pressure gauge

Info

Publication number: CN116105924A
Application number: CN202310202655.6A
Authority: CN
Inventors: 程世伦; 成峰; 邢凯
Original assignee: Maanshan Exact Instrument Co ltd
Current assignee: Maanshan Exact Instrument Co ltd
Priority date: 2023-03-06
Filing date: 2023-03-06
Publication date: 2023-05-12

Abstract

The invention discloses a pressure-resistant fatigue test device for a pressure gauge, which comprises a supporting seat, wherein the top of the supporting seat is rotationally connected with a supporting column, the upper end of the supporting column is fixedly connected with a turntable, the right side of the turntable is provided with a fixed frame fixedly arranged on the supporting seat, the left side and the front end of the turntable are respectively provided with a first conveying component and a second conveying component for entering and exiting the pressure gauge, the fixed frame is provided with a pressing mechanism for fixing the pressure gauge, one side of the bottom of the pressing mechanism is provided with a linkage mechanism, and the upper part of the linkage mechanism is provided with a test mechanism for detecting the pressure gauge; the invention relates to the technical field of pressure gauges. This a withstand voltage fatigue test device for manometer carries out the change of different diameters through the gear on the connecting rod to make the pressure that the manometer body received be convenient for carry out accurate regulation and control according to the test needs, and then effectively improve the accuracy nature of withstand voltage fatigue test result of manometer.

Description

Pressure-resistant fatigue test device for pressure gauge

Technical Field

The invention relates to the technical field of pressure gauges, in particular to a pressure-resistant fatigue test device for a pressure gauge.

Background

The pressure gauge is an instrument which takes an elastic element as a sensitive element and measures and indicates the pressure higher than the ambient pressure, is extremely popular in application, almost extends to all industrial processes and scientific research fields, is visible everywhere in the fields of heating power pipe networks, oil-gas transmission, water and gas supply systems, vehicle maintenance factories, shops and the like, and therefore has higher quality requirements on the pressure gauge.

In the prior art, in the process of carrying out pressure-resistant fatigue test on the pressure gauge, the pressure born by the pressure gauge cannot be accurately controlled according to the requirement, so that the accuracy of a test result is easily affected.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a pressure-resistant fatigue test device for a pressure gauge, which solves the technical problems in the background art.

In order to achieve the above purpose, the invention is realized by the following technical scheme: the pressure-resistant fatigue test device for the pressure gauge comprises a supporting seat, wherein the top of the supporting seat is rotationally connected with a supporting column, the upper end of the supporting column is fixedly connected with a turntable, the right side of the turntable is provided with a fixing frame fixedly installed on the supporting seat, the left side and the front end of the turntable are respectively provided with a first conveying component and a second conveying component for entering and exiting the pressure gauge, the fixing frame is provided with a pressing mechanism for fixing the pressure gauge, one side of the bottom of the pressing mechanism is provided with a linkage mechanism, and a test mechanism for detecting the pressure gauge is arranged above the linkage mechanism;

the testing mechanism comprises a connecting rod which is rotatably arranged on one side of a fixing frame, a bidirectional threaded screw rod is fixedly connected to the bottom end of the connecting rod, a fixed cylinder which is fixedly arranged at the top of a supporting seat is sleeved on the outer wall of the bidirectional threaded screw rod, a rectangular groove is formed in the inner wall of the fixed cylinder, a push block is connected in a sealing sliding mode in the vertical direction in the rectangular groove, the push block is in threaded connection with the bidirectional threaded screw rod, a connecting pipe is arranged at one end of the bottom of the fixed cylinder in a communicating mode, a positioning cylinder is arranged at the other end of the connecting pipe in a communicating mode, the positioning cylinder is fixedly arranged on the supporting seat, a sliding tube is connected to the positioning cylinder in a sealing sliding mode, a through hole is formed in the surface of the sliding tube, the bottom end of the sliding tube penetrates through the positioning cylinder, the supporting seat and a movable wheel is fixedly connected with the bottom of the supporting seat, and a spring which is sleeved on the outer wall of the sliding tube is arranged between the top of the movable wheel and the bottom of the supporting seat.

As the further preference of this technical scheme, first conveying component includes that fixed mounting carries the platform at the supporting seat top, the top fixedly connected with limiting plate who carries the platform, the draw-in groove with the mutual adaptation of manometer has been seted up to the inboard end of limiting plate, it is equipped with the dead lever to carry platform outer wall both ends equidistance, the upper end threaded connection of dead lever has adjusting screw, adjusting screw's inboard end fixedly connected with centre gripping frame, the inboard end rotation of centre gripping frame is connected with a plurality of pulleys.

As the further preference of this technical scheme, the lateral surface equidistance of carousel leaves and is equipped with a plurality of circular channels that mutually adapt with the manometer, the below of carousel is provided with the layer board, the layer board passes through pillar fixed mounting at the supporting seat, the top fixedly connected with retaining ring of layer board, and the retaining ring is located the lateral surface of circular channel, the retaining ring is located first conveying component one side and has seted up the feed chute, the pillar is close to the locating hole that link up has been seted up to pushing equipment one side surface.

As the further preference of this technical scheme, pushing down the mechanism includes servo motor of fixed mounting at the mount top and rotates dwang and the two-way threaded rod of installing in the mount both sides, servo motor's output and dwang's top fixed connection, dwang, two-way threaded rod and connecting rod pass through belt pulley assembly and carry out the transmission with the connecting rod and be connected, the bottom outer wall threaded connection of two-way threaded rod has the movable block, the vertical direction slidable mounting of movable block is on the mount, the bottom fixedly connected with of movable block pushes down the piece, push down piece, slide pipe and locating hole are in same vertical direction, and the through-hole is located the inner chamber of locating cylinder all the time.

As the further preference of this technical scheme, the link gear includes the support of fixed mounting at the supporting seat top, rotate on the support and be connected with the gangbar, the both ends of gangbar are fixedly connected with second bevel gear respectively, the both sides of second bevel gear are the meshing respectively and are connected with third bevel gear, two third bevel gears respectively fixed mounting is on dwang and support column, the outer wall fixedly connected with cam of gangbar, and the outer wall and the mutual laminating transmission of removal wheel outer wall of cam.

Compared with the prior art, the method has the following beneficial effects:

(1) This a withstand voltage fatigue test device for manometer carries out the change of different diameters through the gear on the connecting rod to the convenience control connecting rod drives the ejector pad and descends the distance different, makes the compression volume of air its pressure size that produces also different, thereby makes the pressure that the manometer body received be convenient for carry out accurate regulation and control according to the test needs, and then effectively improves the accuracy nature of withstand voltage fatigue test result of manometer.

(2) This a withstand voltage fatigue test device for manometer adjusts the interval between two centre gripping frames through rotating adjusting screw, cooperates a plurality of pulleys to carry out spacing processing to the shift position of manometer, ensure to realize the centre gripping of manometer and carry, can carry the manometer to the carousel on steadily, effectively avoid the manometer to take place phenomenon such as drop in the transportation.

Drawings

FIG. 1 is a schematic view of the external structure of the present invention;

FIG. 2 is a schematic view of a first conveying assembly according to the present invention;

FIG. 3 is a schematic diagram of a turntable and a pressing mechanism according to the present invention;

FIG. 4 is a schematic diagram of a linkage mechanism according to the present invention;

FIG. 5 is a schematic diagram of a testing mechanism according to the present invention.

In the figure: 1. a support base; 2. a support column; 3. a turntable; 4. a fixing frame; 5. a first transport assembly; 6. a second transport assembly; 7. a pressing mechanism; 8. a linkage mechanism; 9. a testing mechanism; 301. a circular groove; 302. a supporting plate; 303. a support post; 304. a retainer ring; 305. pulling a plate; 306. positioning holes; 501. a conveying table; 502. a limiting plate; 503. a clamping groove; 504. a fixed rod; 505. adjusting a screw; 506. a clamping frame; 507. a pulley; 701. a servo motor; 702. a rotating lever; 703. a two-way threaded rod; 704. a pulley assembly; 705. a moving block; 706. pressing the block; 801. a support; 802. a linkage rod; 803. bevel gears; 804. a second bevel gear; 805. a cam; 901. a connecting rod; 902. a fixed cylinder; 903. a pushing block; 904. a connecting pipe; 905. a positioning cylinder; 906. a slide tube; 907. a through hole; 908. a moving wheel; 909. and (3) a spring.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides a withstand voltage fatigue test device for manometer, including supporting seat 1, the top rotation of supporting seat 1 is connected with support column 2, the upper end fixedly connected with carousel 3 of support column 2, carousel 3's right side sets up fixed mount 4 of fixed mounting on supporting seat 1, carousel 3's left side and front end are provided with respectively and are used for advancing the table and go out first conveying component 5 and second conveying component 6 of table, be provided with the pushing down mechanism 7 that is used for fixed manometer on the mount 4, pushing down mechanism 7's bottom one side link gear 8, link gear 8's top is provided with the testing mechanism 9 that is used for detecting the manometer.

As shown in fig. 2, the first conveying component 5 includes a conveying table 501 fixedly installed at the top of the supporting seat 1, a limiting plate 502 is fixedly connected to the top of the conveying table 501, a clamping groove 503 which is mutually adapted to the pressure gauge is formed in the inner side end of the limiting plate 502, fixing rods 504 are equidistantly arranged at two ends of the outer wall of the conveying table 501, an adjusting screw 505 is connected to the upper end of each fixing rod 504 in a threaded manner, a clamping frame 506 is fixedly connected to the inner side end of each adjusting screw 505, a plurality of pulleys 507 are rotatably connected to the inner side end of each clamping frame 506, in the embodiment of the invention, the outlet of each clamping groove 503 is mutually adapted to the position of a circular groove 301 on the turntable 3, a conveying belt transmission component for conveying the pressure gauge is arranged on the inner side of the conveying table 501, the distance between the two clamping frames 506 is adjusted by rotating the adjusting screw 505, and the pulleys 507 are matched, so that the moving position of the pressure gauge is limited, the clamping conveying of the pressure gauge is ensured, the pressure gauge can be stably conveyed to the turntable 3, and the phenomenon that the pressure gauge falls down in the conveying process is effectively avoided.

As shown in fig. 3, the outer side surface of the turntable 3 is equidistantly separated from a circular groove 301 which is mutually matched with a pressure gauge, a supporting plate 302 is arranged below the turntable 3, the supporting plate 302 is fixedly installed on a supporting seat 1 through a supporting column 303, the top of the supporting plate 302 is fixedly connected with a retainer ring 304, the retainer ring 304 is positioned on the outer side surface of the circular groove 301, a feeding groove is formed in one side of the retainer ring 304, which is positioned on the first conveying component 5, a through positioning hole 306 is formed in the surface of one side of the supporting column 303, which is close to the pressing mechanism 7, in the embodiment of the invention, the turntable 3 is in a double-layer structure to limit the upper end and the lower end of the pressure gauge, the pressure gauge is conveyed to the circular groove 301 of the turntable 3 by the first conveying component 5, the pressure gauge is driven to rotate when the turntable 3 rotates, the bottom of the pressure gauge moves to slide on the supporting plate 302, and meanwhile the retainer ring 304 limits the position of the pressure gauge, so that the pressure gauge rotates circumferentially along with the rotation of the turntable 3.

As shown in fig. 3, the pressing mechanism 7 includes a servo motor 701 fixedly installed at the top of the fixing frame 4, a rotating rod 702 and a bidirectional threaded rod 703 rotatably installed at two sides of the fixing frame 4, an output end of the servo motor 701 is fixedly connected with the top of the rotating rod 702, the bidirectional threaded rod 703 and the connecting rod 901 are in transmission connection through a belt pulley assembly 704, a moving block 705 is connected with an outer wall thread at the bottom end of the bidirectional threaded rod 703, the moving block 705 is slidably installed on the fixing frame 4 in the vertical direction, a pressing block 706 is fixedly connected with the bottom end of the moving block 705, the pressing block 706, a slide tube 906 and a positioning hole 306 are in the same vertical direction, and a through hole 907 is always located in an inner cavity of a positioning cylinder 905.

As shown in fig. 4, the linkage mechanism 8 includes a support 801 fixedly installed at the top of the supporting seat 1, a linkage rod 802 is rotatably connected to the support 801, two ends of the linkage rod 802 are respectively fixedly connected with a second bevel gear 803, two sides of the second bevel gear 803 are respectively engaged with a third bevel gear 804, two third bevel gears 804 are respectively fixedly installed on the rotation rod 702 and the supporting column 2, the outer wall of the linkage rod 802 is fixedly connected with a cam 805, and the outer wall of the cam 805 and the outer wall of the movable wheel 908 are mutually attached to each other for transmission.

As shown in fig. 5, the test mechanism 9 comprises a connecting rod 901 rotatably installed at one side of a fixing frame 4, the bottom end of the connecting rod 901 is fixedly connected with a bidirectional screw rod, the outer wall of the bidirectional screw rod is sleeved with a fixed cylinder 902 fixedly installed at the top of a supporting seat 1, the inner wall of the fixed cylinder 902 is provided with a rectangular groove, a pushing block 903 is hermetically and slidingly connected in the vertical direction in the rectangular groove, the pushing block 903 is in threaded connection with the bidirectional screw rod, one end of the bottom of the fixed cylinder 902 is communicated with a connecting pipe 904, the other end of the connecting pipe 904 is communicated with a positioning cylinder 905, the positioning cylinder 905 is fixedly installed on the supporting seat 1, the positioning cylinder 905 is hermetically and slidingly connected with a slide tube 906, the surface of the slide tube 906 is provided with a through hole 907, the bottom of the slide tube 906 penetrates through the positioning cylinder 905 and the supporting seat 1 and is fixedly connected with the movable wheel 908, a spring 909 sleeved on the outer wall of the slide tube 906 is arranged between the top of the movable wheel 908 and the bottom of the supporting seat 1, in the embodiment of the invention, the through hole 907 is always positioned in the positioning cylinder 905 in the up-down movement process of the slide tube 906, and the gears on the connecting rod 901 are replaced with different diameters, so that the connecting rod 901 is conveniently controlled to drive the push block 903 to descend by different distances, the compression amount of air is different, the pressure generated by the compression amount of air is different, and the pressure born by the pressure meter body is convenient to accurately regulate and control according to test requirements, and the accuracy of the pressure-resistant fatigue test result of the pressure meter is effectively improved.

In this embodiment, the pulley assembly 704 includes three pulleys mounted on the rotating rod 702, the bidirectional threaded rod 703 and the connecting rod 901, and a belt for driving and connecting the three pulleys, note that the pulleys mounted on the connecting rod 901 are fixedly mounted when detached, and pulleys with different diameters can be replaced.

And all that is not described in detail in this specification is well known to those skilled in the art.

Working principle of pressure-resistant fatigue test device for pressure gauge: placing the pressure gauge into the clamping groove 503 of the limiting plate 502 in sequence, conveying the pressure gauge to one side of the turntable 3 through the conveying belt transmission assembly, starting the servo motor 701 to drive the rotating rod 702 to rotate, wherein the rotating rod 702 is matched with the belt pulley assembly 704 to drive the bidirectional threaded rod 703, the connecting rod 901 and the second bevel gear 804 to synchronously rotate, at the moment, the second bevel gear 804 drives the bevel gear 803 to rotate with the linkage rod 802, the linkage rod 802 is matched with the bevel gear 803 to drive the support column 2 to rotate, the support column 2 drives the turntable 3 to rotate, when the turntable 3 rotates, the circular groove 301 moves to the position of the pressure gauge, the pressure gauge enters the circular groove 301, rotates along with the rotation of the turntable 3, when the pressure gauge moves to the position of the positioning hole 306 on the supporting plate 302, the air inlet of the pressure gauge corresponds to the positioning hole 306, at the moment, the rotating rod 702 and the linkage rod 802 drive the bidirectional threaded rod 703 to rotate in the rotating process, the bidirectional threaded rod 703 drives the moving block 705 and the lower pressing block 706 to move downwards, so that the lower pressing block 706 limits the top of the pressure gauge, the linkage rod 802 drives the cam 805 to rotate, the cam 805 cooperates with the moving wheel 908 to drive the sliding tube 906 to slide upwards on the positioning tube 905, the spring 909 is compressed, the top of the sliding tube 906 penetrates through the positioning hole 306 to be inserted into the air inlet of the pressure gauge in a sealing way, meanwhile, the rotating rod 702 cooperates with the bidirectional threaded rod 703 to drive the connecting rod 901 to rotate, the connecting rod 901 drives the bottom bidirectional threaded screw to rotate, the bidirectional threaded screw drives the pushing block 903 to move downwards in the supporting plate 302, the supporting plate 302 enables air in the fixed tube 902 to enter the positioning tube 905 through the connecting tube 904, and because the positioning tube 905 is in sealing sliding connection with the sliding tube 906, the air is discharged into the sliding tube 906 through the through a through hole, the air enters the pressure gauge body, the pressure gauge body can be detected, and then the gears on the connecting rod 901 are replaced with different diameters, so that the connecting rod 901 is conveniently controlled to drive the pushing block 903 to descend at different distances, the compression amount of air is different in pressure generated by the air, the pressure born by the pressure gauge body is convenient to accurately regulate and control according to the test requirement, and the accuracy of the pressure-resistant fatigue test result of the pressure gauge is effectively improved; then, as the rotating rod 702 continues to rotate, the lower pressing block 706 is driven to move upwards, the sliding tube 906 moves downwards under the elastic force of the spring 909, and the supporting column 2 drives the turntable 3 to rotate, so that the next pressure gauge is switched to detect.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Pressure-resistant fatigue test device for pressure gauge, including supporting seat (1), its characterized in that: the top of supporting seat (1) is rotationally connected with support column (2), the upper end fixedly connected with carousel (3) of support column (2), the right side of carousel (3) sets up mount (4) of fixed mounting on supporting seat (1), the left side and the front end of carousel (3) are provided with first conveying component (5) and second conveying component (6) that are used for advancing the table and go out the table respectively, be provided with on mount (4) and be used for fixed manometer pushing down mechanism (7), bottom one side link gear (8) of pushing down mechanism (7), the top of link gear (8) is provided with test mechanism (9) that are used for detecting the manometer;

the utility model provides a testing mechanism (9) is including rotating connecting rod (901) of installing in mount (4) one side, the bottom fixedly connected with two-way screw lead screw of connecting rod (901), and two-way screw lead screw outer wall cover is equipped with fixed barrel (902) at fixed mounting supporting seat (1) top, rectangular channel has been seted up to the inner wall of fixed barrel (902), and vertical direction sealing sliding connection has ejector pad (903) in the rectangular channel, and ejector pad (903) carry out threaded connection with two-way screw lead screw, the bottom one end intercommunication of fixed barrel (902) is provided with connecting pipe (904), the other end intercommunication of connecting pipe (904) is provided with positioning tube (905), positioning tube (905) fixed mounting is on supporting seat (1), sealing sliding connection has slide tube (906) on positioning tube (905), through-hole (907) have been seted up on the surface of slide tube (906), the bottom of slide tube (906) runs through positioning tube (905), supporting seat (1) and fixedly connected with movable wheel (908), set up spring (909) of cover setting up between slide tube (908) top and supporting seat (1) bottom.

2. The pressure-resistant fatigue test device for a pressure gauge according to claim 1, wherein: the utility model discloses a conveyer assembly, including fixed mounting at supporting seat (1) top transport platform (501), the top fixedly connected with limiting plate (502) of carrying platform (501), draw-in groove (503) with manometer looks adaptation are seted up to the inboard end of limiting plate (502), carry platform (501) outer wall both ends equidistance to be equipped with dead lever (504), the upper end threaded connection of dead lever (504) has adjusting screw (505), the inboard end fixedly connected with centre gripping frame (506) of adjusting screw (505), the inboard end rotation of centre gripping frame (506) is connected with a plurality of pulleys (507).

3. The pressure-resistant fatigue test device for a pressure gauge according to claim 1, wherein: the utility model discloses a rotary table, including carousel (3) and locating hole (306), carousel (3) are provided with round groove (301), carousel (3) lateral surface equidistance leaves to be equipped with a plurality of round grooves (301) with manometer looks adaptation, the below of carousel (3) is provided with layer board (302), layer board (302) are through pillar (303) fixed mounting at supporting seat (1), the top fixedly connected with retaining ring (304) of layer board (302), and retaining ring (304) are located the lateral surface of round groove (301), the retaining ring (304) are located first conveying assembly (5) one side and have been seted up the feed chute, pillar (303) are close to push down mechanism (7) one side surface and have been seted up locating hole (306) that link up.

4. The pressure-resistant fatigue test device for a pressure gauge according to claim 1, wherein: the pushing mechanism (7) comprises a servo motor (701) fixedly mounted at the top of a fixing frame (4) and a rotating rod (702) and a bidirectional threaded rod (703) rotatably mounted at two sides of the fixing frame (4), the output end of the servo motor (701) is fixedly connected with the top of the rotating rod (702), the bidirectional threaded rod (703) and the connecting rod (901) are in transmission connection through a belt pulley assembly (704), a moving block (705) is connected to the outer wall of the bottom end of the bidirectional threaded rod (703) in a threaded manner, the moving block (705) is slidably mounted on the fixing frame (4) in the vertical direction, a pushing block (706) is fixedly connected to the bottom end of the moving block (705), the pushing block (706), a sliding tube (906) and a positioning hole (306) are located in the same vertical direction, and a through hole (907) is always located in an inner cavity of the positioning cylinder (905).

5. The pressure-resistant fatigue test device for a pressure gauge according to claim 4, wherein: the linkage mechanism (8) comprises a support (801) fixedly mounted at the top of the supporting seat (1), a linkage rod (802) is rotatably connected to the support (801), two ends of the linkage rod (802) are fixedly connected with second bevel gears (803) respectively, two sides of the second bevel gears (803) are connected with third bevel gears (804) in a meshed mode respectively, the two third bevel gears (804) are fixedly mounted on the rotating rod (702) and the supporting column (2) respectively, a cam (805) is fixedly connected to the outer wall of the linkage rod (802), and the outer wall of the cam (805) and the outer wall of the moving wheel (908) are in fit transmission mutually.