CN114789985A

CN114789985A - Chemical tanker low-temperature liquid unloading device

Info

Publication number: CN114789985A
Application number: CN202210419782.7A
Authority: CN
Inventors: 徐鑫; 王伟; 朱明�; 秦锋; 黄炼; 王峰; 薛钱柳; 赵彦鑫; 张莉; 刘剑波
Original assignee: Jiangsu New Times Shipbuilding Co ltd
Current assignee: Jiangsu New Times Shipbuilding Co ltd
Priority date: 2022-04-20
Filing date: 2022-04-20
Publication date: 2022-07-26
Anticipated expiration: 2042-04-20
Also published as: CN114789985B

Abstract

The invention discloses a low-temperature liquid unloading device for a chemical tanker, which relates to the field of liquid unloading and comprises an automatic alignment mechanism, an automatic limiting mechanism, a taper self-locking mechanism and a valve linkage mechanism; the automatic alignment mechanism is used for automatically aligning the unloading telescopic arm with the tank car, the automatic limiting mechanism is used for automatically limiting the telescopic arm and the tank car, the taper self-locking mechanism is used for heat preservation and leakage prevention during transmission, and the valve linkage mechanism is used for closing an opening to prevent low-temperature liquid from evaporating and vaporizing when the transmission is stopped. The invention can realize low-temperature transportation of liquid, automatically close the valve after transportation to prevent leakage, and realize automatic butt joint.

Description

Chemical tanker low-temperature liquid unloading device

Technical Field

The invention relates to the field of liquid unloading, in particular to a low-temperature liquid unloading device for a chemical tanker.

Background

At present, the unloading mode of a low-temperature liquid tank truck for chemicals mainly comprises self-pressurization unloading and low-temperature immersed pump unloading of the low-temperature liquid tank truck, the unloading speed of the low-temperature liquid tank truck and the unloading speed of the low-temperature liquid tank truck are both relatively low, meanwhile, the former needs low-temperature liquid gasification, the heat of an external transmission system is relatively high, the latter needs to consume relatively high electric energy, and meanwhile, the temperature of the low-temperature liquid passing through the immersed pump is increased. The residual pressure of the low-temperature liquid tank wagon is high after unloading, the situation that unloading is not clean is formed, and before loading is carried out again, gas in the low-temperature liquid tank wagon needs to be diffused due to the fact that the residual pressure is high, so that great waste is caused.

In order to solve the defects of the prior art, the Chinese utility model with the publication number of CN213169560U discloses a closed filtering unloading device for liquid oil products, which comprises an upper closed liquid sealing device for preventing the liquid oil associated gas from overflowing, and a lower body for filtering sand and stone in the liquid oil products and connecting the joint of the unloading vehicle; the body is connected with a conical structure body, and the upper end of the conical structure body is provided with an upper closed liquid seal device; the utility model discloses a liquid transportation device, including conical structure body, stainless steel wire filter screen, outlet pipe, the bottom of body is installed to the conical structure body side-mounting has the quick-operation joint of unloading, the body is provided with the stainless steel wire filter screen, the stainless steel wire filter screen is located the upper end of outlet pipe, the outlet pipe is installed in the bottom of body for the purified oil that the discharge has filtered, this utility model though can realize preventing the environmental pollution that the liquid vaporization in the liquid transportation process flowed out and cause, can not realize the automatic alignment and the spacing of connector when docking with the tank wagon.

Disclosure of Invention

In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the utility model provides a chemical tanker cryogenic fluid device of unloading, including automatic alignment mechanism and automatic stop gear, automatic alignment mechanism is including the base of unloading, automatic stop gear includes the tank wagon, the base fixed mounting that unloads is on the wharf, the tank wagon is gone through the pier, automatic alignment mechanism is used for unloading to the cryogenic fluid in the tank wagon, automatic alignment mechanism still includes the rotor arm, the rotor arm is installed on the base of unloading, slidable mounting has the arm of stretching out on the rotor arm, slidable mounting has the slip arm on the arm of stretching out, the slip arm slides and deepens to make automatic stop gear be connected with automatic alignment mechanism in the tank wagon, automatic alignment mechanism unloads the tank wagon.

The automatic limiting mechanism further comprises a bevel limiting column, the bevel limiting column is fixedly arranged on the tank car, a sliding rod is slidably arranged on the bevel limiting column, a sliding rod spring is fixedly arranged on the sliding rod, one end of the sliding rod spring is fixedly connected with the sliding rod, the other end of the sliding rod spring is fixedly connected with the bevel limiting column, a spring piece I is fixedly arranged on the sliding rod, a plug rod is slidably arranged on the bevel limiting column, a plug rod spring is fixedly arranged on the plug rod, one end of the plug rod spring is fixedly connected with the plug rod, the other end of the plug rod spring is fixedly connected with the bevel limiting column, a rack column is slidably arranged on the bevel limiting column, a pin hole is formed in the rack column, the rack column cannot move up and down when the plug rod is inserted into the rack column, a rack column spring is fixedly arranged on the rack column, one end of the rack column spring is fixedly connected with the rack column, and the other end of the rack column spring is fixedly connected with the bevel limiting column, the rack column is fixedly provided with a limiting rack, the bevel limiting column is rotatably provided with a driving limiting column, the driving limiting column is used for limiting the sliding arm, the driving limiting column is fixedly provided with a limiting gear, and the limiting gear and the limiting rack form a gear-rack fit.

Furthermore, a screw rod is rotatably mounted on the rotating arm, the screw rod is in threaded fit with the extending arm, a telescopic motor is fixedly mounted on the rotating arm, and the screw rod is fixedly connected with an output shaft of the telescopic motor; the unloading base is fixedly provided with a rotating motor, an output shaft of the rotating motor is fixedly connected with a rotating arm, and the rotating arm is rotatably arranged on the unloading base; a sliding arm rack is fixedly installed on the sliding arm, a lifting motor is fixedly installed on the sliding arm, a lifting gear is fixedly installed on an output shaft of the lifting motor, and the sliding arm rack and the lifting gear form gear-rack cooperation.

The taper self-locking mechanism comprises an upper taper column, the upper taper column is connected with the sliding arm in a sliding mode, an upper reset spring is fixedly mounted on the upper taper column, one end of the upper reset spring is fixedly connected with the upper taper column, the other end of the upper reset spring is fixedly connected with the sliding arm, a connecting sleeve is fixedly mounted on the upper taper column, and the connecting sleeve is connected with the sliding arm in a sliding mode; a lower conical sleeve is slidably mounted on the tank car, a lower return spring is fixedly mounted on the lower conical sleeve, one end of the lower return spring is fixedly connected with the lower conical sleeve, the other end of the lower return spring is fixedly connected with the tank car, a lower conical sleeve connecting rod is fixedly mounted on the lower conical sleeve, a reversing component is fixedly mounted on the lower conical sleeve connecting rod, a spring piece II is fixedly mounted on the reversing component, a limiting bolt is slidably mounted on the tank car and is in contact with the spring piece II, a limiting rod is slidably mounted on the tank car and is provided with a pin hole, the limiting bolt cannot move on the tank car when inserted into the limiting rod, a limiting spring is fixedly mounted on the limiting rod, one end of the limiting spring is fixedly connected with the limiting rod, the other end of the limiting spring is fixedly connected with the tank car, a limiting plate is fixedly mounted on the limiting spring, an annular groove is arranged on the upper conical column, and the upper conical column cannot move in the vertical direction when inserted into the annular groove of the upper conical column, and completing the axial limit of the upper conical column.

Furthermore, the stiffness coefficient of the upper return spring is larger than that of the lower return spring.

Furthermore, the reversing assembly comprises a reversing rack I, the reversing rack I is fixedly mounted on the lower taper sleeve connecting rod, a reversing gear I is rotatably mounted on the tank car, the reversing gear I and the reversing rack I form gear-rack fit, a reversing gear II is fixedly mounted on the reversing gear I, a reversing rack II is slidably mounted on the tank car, the reversing rack II and the reversing gear II form gear-rack fit, and a spring piece II is fixedly mounted on the reversing rack II.

Furthermore, a lower compression leg is slidably mounted on the tank car, a lower compression leg spring is fixedly mounted on the lower compression leg, one end of the lower compression leg spring is fixedly connected with the lower compression leg, the other end of the lower compression leg spring is fixedly connected with the tank car, an inclined plane insertion block is fixedly mounted on the lower compression leg, an inclined plane insertion plate is fixedly mounted on the limiting rod, and the inclined plane insertion block is slidably inserted into the inclined plane insertion plate.

Furthermore, a heat insulation cover is fixedly mounted on the sliding arm, a sealing groove is fixedly mounted on the tank car, and the heat insulation cover enters the sealing groove in the downward movement process of the sliding arm and is used for heat insulation of low-temperature liquid.

Further, still include valve link gear, valve link gear includes the flap valve, and the flap valve rotates to be installed on the slide arm, and fixed mounting has the backup pad on the heat preservation covers, and slidable mounting has the fore-set in the backup pad, and fixed mounting has spring leaf III on the fore-set, and slidable mounting has the slip post in the backup pad, is equipped with the open slot on the slip post, and the upper end card of spring leaf III is on the open slot of slip post, and fixed mounting has slip post rack on the slip post, and fixed mounting has slip post gear on the flap valve, and the gear rack cooperation is formed with slip post rack to slip post gear.

Furthermore, slidable mounting has the tray on the cursor slide, the lower extreme and the slip post fixed connection of tray, and the tray is arranged in the below of rack post.

Further, fixed mounting has the connecting rod on the gag lever post, and fixed mounting has the connecting rod rack on the connecting rod, rotates on the tank wagon and installs the connecting rod gear, and the connecting rod rack forms the rack and pinion cooperation with the connecting rod gear, and slidable mounting has the control lever on the tank wagon, and fixed mounting has the control lever rack on the control lever, and the control lever rack forms the rack and pinion cooperation with the connecting rod gear, rotates on the tank wagon and installs down flap valve, and fixed mounting has the rotation connecting rod on the flap valve down, rotates connecting rod and control lever sliding connection.

Compared with the prior art, the invention has the beneficial effects that: (1) the automatic butt joint device is provided with the automatic alignment mechanism and the automatic limiting mechanism, and can automatically butt joint a tank car; (2) the taper self-locking mechanism is arranged, so that the self-locking and sealing of the connecting port after connection can be guaranteed; (3) the taper self-locking mechanism is provided with the heat preservation cover, so that a good heat preservation effect can be achieved for low-temperature transportation; (4) the invention is provided with the valve linkage mechanism, can automatically realize the automatic starting of the valve before transmission and the automatic closing of the valve after transmission, and prevent the environmental pollution and the liquid loss caused by the vaporization and leakage of the liquid.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the automatic alignment mechanism of the present invention.

Fig. 3 is a schematic view of the automatic limiting mechanism of the present invention.

Fig. 4 is a partial schematic view of the automatic limiting mechanism of the present invention.

Fig. 5 is a schematic view of the taper self-locking mechanism of the present invention.

Fig. 6 is a partially enlarged view of a portion a in fig. 5.

Fig. 7 is a partial schematic view of the taper self-locking mechanism of the present invention.

Fig. 8 is a partially enlarged view of the portion B in fig. 7.

Fig. 9 is a schematic connection diagram of the taper self-locking mechanism of the present invention.

Fig. 10 is a partially enlarged view of C in fig. 9.

Fig. 11 is a schematic linkage diagram of the taper self-locking mechanism of the present invention.

Fig. 12 is a partially enlarged view of fig. 11 at D.

Fig. 13 is an upper schematic view of the valve linkage of the present invention.

Fig. 14 is a partially enlarged view of E in fig. 13.

Fig. 15 is a schematic view of the lower portion of the valve linkage of the present invention.

Fig. 16 is a partially enlarged view of fig. 15 at F.

Reference numerals: 1-an automatic alignment mechanism; 2-automatic limiting mechanism; 3-a taper self-locking mechanism; 4-valve linkage mechanism; 101-a base for unloading; 102-a swivel arm; 103-a cantilever arm; 104-a screw rod; 105-a telescopic motor; 106-rotating electric machine; 107-sliding arm; 108-sliding arm rack; 109-a lifting motor; 110-a lifting gear; 201-tank car; 202-a cone mouth limiting column; 203-a slide bar; 204-spring leaf I; 205-sliding rod spring; 206-a latch lever; 207-latch lever spring; 208-rack bar; 209-rack post spring; 210-a limit rack; 211-limit gear; 212-active limit post; 213-a tray; 301-upper return spring; 302-upper conical column; 303-connecting sleeves; 304-a lower return spring; 305-lower taper sleeve; 306-a heat preservation cover; 307-lower taper sleeve connecting rod; 308-a reversing rack I; 309-reversing gear I; 310-a reversing gear II; 311-reversing rack II; 312-spring leaf II; 313-a limit bolt; 314-a stop lever; 315-a limit spring; 316-limiting plate; 317-pressing the column; 318-a compression post spring; 319-oblique plane insert block; 320-inclined plane plugboard; 321-a sealing groove; 401-upward flap valve; 402-a top pillar; 403-a support plate; 404-spring leaf III; 405-a sliding column; 406-sliding column rack; 407-sliding column gear; 408-a connecting rod; 409-connecting rod rack; 410-connecting rod gear; 411-control lever rack; 412-a control lever; 413-a rotating link; 414-lower flap valve.

Detailed Description

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

Wherein the showings are for the purpose of illustration only and not for the purpose of limiting the same, the same is shown by way of illustration only and not in the form of limitation; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The embodiment is as follows: as shown in fig. 1-10, the chemical tanker cryogenic liquid unloading device comprises an automatic alignment mechanism 1 and an automatic limiting mechanism 2, wherein the automatic alignment mechanism 1 comprises an unloading base 101, the automatic limiting mechanism 2 comprises a tank car 201, the unloading base 101 is fixedly mounted on a wharf, the tank car 201 runs through the wharf, the automatic alignment mechanism 1 is used for unloading cryogenic liquid in the tank car 201, the automatic alignment mechanism 1 further comprises a rotating arm 102, the rotating arm 102 is mounted on the unloading base 101, an extending arm 103 is slidably mounted on the rotating arm 102, a sliding arm 107 is slidably mounted on the extending arm 103, the sliding arm 107 slides deep into the tank car 201 to enable the automatic limiting mechanism 2 to be connected with the automatic alignment mechanism 1, and the automatic alignment mechanism 1 unloads the tank car 201.

The automatic limiting mechanism 2 further comprises a bevel limiting column 202, the bevel limiting column 202 is fixedly arranged on the tank wagon 201, a sliding rod 203 is arranged on the bevel limiting column 202 in a sliding mode, a sliding rod spring 205 is fixedly arranged on the sliding rod 203, one end of the sliding rod spring 205 is fixedly connected with the sliding rod 203, the other end of the sliding rod spring 205 is fixedly connected with the bevel limiting column 202, a spring piece I204 is fixedly arranged on the sliding rod 203, a bolt rod 206 is arranged on the bevel limiting column 202 in a sliding mode, a bolt rod spring 207 is fixedly arranged on the bolt rod 206, one end of the bolt rod spring 207 is fixedly connected with the bolt rod 206, the other end of the bolt rod spring 207 is fixedly connected with the bevel limiting column 202, a rack column 208 is arranged on the bevel limiting column 202 in a sliding mode, a pin hole is formed in the rack column 208, the rack column 208 cannot move up and down when the bolt rod 206 is inserted into the rack column 208, a rack column 208 is fixedly provided with a rack column spring 209, one end of a rack column spring 209 is fixedly connected with a rack column 208, the other end of the rack column spring 209 is fixedly connected with a bevel limiting column 202, a limiting rack 210 is fixedly mounted on the rack column 208, an active limiting column 212 is rotatably mounted on the bevel limiting column 202, the active limiting column 212 is used for limiting the sliding arm 107, a limiting gear 211 is fixedly mounted on the active limiting column 212, and the limiting gear 211 and the limiting rack 210 form a gear-rack fit.

A screw rod 104 is rotatably arranged on the rotating arm 102, the screw rod 104 is in threaded fit with the extension arm 103, a telescopic motor 105 is fixedly arranged on the rotating arm 102, and the screw rod 104 is fixedly connected with an output shaft of the telescopic motor 105; a rotating motor 106 is fixedly arranged on the unloading base 101, an output shaft of the rotating motor 106 is fixedly connected with a rotating arm 102, and the rotating arm 102 is rotatably arranged on the unloading base 101; a sliding arm rack 108 is fixedly arranged on the sliding arm 107, a lifting motor 109 is fixedly arranged on the sliding arm 107, a lifting gear 110 is fixedly arranged on an output shaft of the lifting motor 109, and the sliding arm rack 108 and the lifting gear 110 form gear-rack matching. When the tank car 201 moves to the working range of the automatic alignment mechanism 1, the telescopic motor 105 works to drive the lead screw 104 to rotate, the lead screw 104 rotates to drive the extension arm 103 to slide on the rotating arm 102, the rotating motor 106 works to drive the rotating arm 102 to rotate on the unloading base 101, the sliding arm 107 on the extension arm 103 also moves horizontally beside the cone mouth limiting column 202 in the sliding process of the rotating arm 102, the sliding arm 107 enters the cone mouth of the cone mouth limiting column 202, the sliding arm 107 moves to push the sliding rod 203 on the cone mouth limiting column 202, the sliding rod 203 moves backwards to press the sliding rod spring 205, the sliding rod 203 moves to drive the spring plate I204 to move, the spring plate I204 moves to drive the latch rod 206 to move, the latch rod 206 moves to separate from a pin hole on the rack column 208, the rack column 208 moves downwards under the action of the rack column spring 209, the rack column 208 moves downwards to drive the limiting rack 210 to move downwards, the limiting rack 210 moves downwards to drive the limiting gear 211 to rotate ninety degrees, the limiting gear 211 rotates ninety degrees to drive the active limiting column 212 to rotate ninety degrees, and the active limiting column 212 limits the sliding arm 107 in the middle of the cone opening limiting column 202.

The taper self-locking mechanism 3 comprises an upper taper column 302, the upper taper column 302 is connected with the sliding arm 107 in a sliding manner, an upper return spring 301 is fixedly mounted on the upper taper column 302, one end of the upper return spring 301 is fixedly connected with the upper taper column 302, the other end of the upper return spring 301 is fixedly connected with the sliding arm 107, a connecting sleeve 303 is fixedly mounted on the upper taper column 302, and the connecting sleeve 303 is connected with the sliding arm 107 in a sliding manner; a lower taper sleeve 305 is arranged on the tank wagon 201 in a sliding manner, a lower return spring 304 is fixedly arranged on the lower taper sleeve 305, one end of the lower return spring 304 is fixedly connected with the lower taper sleeve 305, the other end of the lower return spring 304 is fixedly connected with the tank wagon 201, a lower taper sleeve connecting rod 307 is fixedly arranged on the lower taper sleeve 305, a reversing component is fixedly arranged on the lower taper sleeve connecting rod 307, a spring piece II 312 is fixedly arranged on the reversing component, a limiting bolt 313 is arranged on the tank wagon 201 in a sliding manner, the limiting bolt 313 is contacted with the spring piece II 312, a limiting rod 314 is arranged on the tank wagon 201 in a sliding manner, a pin hole is arranged on the limiting rod 314, the limiting rod 314 cannot move on the tank wagon 201 when the limiting bolt 313 is inserted into the limiting rod 314, a limiting spring 315 is fixedly arranged on the limiting rod 314, one end of the limiting spring 315 is fixedly connected with the limiting rod 314, the other end of the limiting spring 315 is fixedly connected with the tank wagon 201, and a limiting plate 316 is fixedly arranged on the limiting spring 315, an annular groove is formed in the upper conical column 302, and when the limiting plate 316 is inserted into the annular groove of the upper conical column 302, the upper conical column 302 cannot move in the vertical direction, so that the axial limiting of the upper conical column 302 is completed.

The stiffness coefficient of the upper return spring 301 is larger than that of the lower return spring 304.

The reversing assembly comprises a reversing rack I308, the reversing rack I308 is fixedly mounted on a lower taper sleeve connecting rod 307, a reversing gear I309 is rotatably mounted on the tank car 201, the reversing gear I309 and the reversing rack I308 form gear-rack fit, a reversing gear II 310 is fixedly mounted on the reversing gear I309, a reversing rack II 311 is slidably mounted on the tank car 201, the reversing rack II 311 and the reversing gear II 310 form gear-rack fit, and a spring piece II 312 is fixedly mounted on the reversing rack II 311.

A lower pressing column 317 is slidably mounted on the tank car 201, a lower pressing column spring 318 is fixedly mounted on the lower pressing column 317, one end of the lower pressing column spring 318 is fixedly connected with the lower pressing column 317, the other end of the lower pressing column spring 318 is fixedly connected with the tank car 201, an inclined plane insertion block 319 is fixedly mounted on the lower pressing column 317, an inclined plane insertion plate 320 is fixedly mounted on the limiting rod 314, and the inclined plane insertion block 319 is slidably inserted into the inclined plane insertion plate 320.

The sliding arm 107 is fixedly provided with a heat insulation cover 306, the tank wagon 201 is fixedly provided with a sealing groove 321, and the heat insulation cover 306 enters the sealing groove 321 in the downward movement process of the sliding arm 107 and is used for heat insulation of low-temperature liquid. The lifting motor 109 is started to drive the lifting gear 110 to rotate, the lifting gear 110 rotates to drive the sliding arm rack 108 to move downwards, the sliding arm rack 108 moves downwards to drive the sliding arm 107 to move downwards, the sliding arm 107 moves downwards to drive the upper return spring 301 and the upper taper post 302 to move downwards, the upper taper post 302 moves downwards to a tapered hole on the lower taper sleeve 305, the upper taper post 302 continues to move downwards to drive the lower taper sleeve 305 to move downwards after the upper taper post 302 is matched with the lower taper sleeve 305, the lower taper sleeve 305 moves downwards to drive the lower taper sleeve connecting rod 307 to move downwards, the lower taper sleeve connecting rod 307 moves downwards to drive the reversing rack I308 to move downwards, the reversing rack I308 moves downwards to drive the reversing gear I309 to rotate, the reversing gear I rotates to drive the reversing gear II 310 to rotate, the reversing gear II 310 rotates to drive the reversing II 311 to move linearly, the reversing rack II 311 moves to drive the spring piece II 312 to move linearly, the spring piece II 312 pulls the limiting bolt 313, the limiting bolt 313 is separated from the pin hole in the limiting rod 314, the limiting rod 314 is ejected out under the action of the limiting spring 315, the limiting rod 314 drives the limiting plate 316 to move and insert into the annular groove of the upper conical column 302, liquid leakage caused in the unloading process is prevented, the heat-insulating cover 306 also moves downwards in the downward movement process of the sliding arm 107, and the heat-insulating cover 306 moves into the sealing groove 321.

Still include valve link gear 4, valve link gear 4 includes upper flap valve 401, upper flap valve 401 rotates and installs on slide arm 107, fixed mounting has backup pad 403 on the heat preservation cover 306, slidable mounting has fore-set 402 on backup pad 403, fixed mounting has spring leaf III 404 on the fore-set 402, slidable mounting has sliding column 405 on backup pad 403, be equipped with the open slot on the sliding column 405, the upper end card of spring leaf III 404 is on the open slot of sliding column 405, fixed mounting has sliding column rack 406 on the sliding column 405, fixed mounting has sliding column gear 407 on the upper flap valve 401, sliding column gear 407 and sliding column rack 406 form the rack and pinion cooperation.

A tray 213 is slidably mounted on the sliding arm 107, the lower end of the tray 213 is fixedly connected with the sliding column 405, and the tray 213 is disposed below the rack column 208. In the first downward movement process of the sliding arm 107, the supporting plate 403 is driven to move downward, the supporting plate 403 moves downward to drive the top pillar 402 to move downward, the top pillar 402 is pressed against the upper surface of the sealing groove 321, the top pillar 402 moves upward relative to the supporting plate 403, the top pillar 402 moves upward to drive the spring strip iii 404 to move upward, the spring strip iii 404 moves upward to drive the sliding pillar 405 to move upward, the sliding pillar 405 moves upward to drive the sliding pillar rack 406 to move upward, the sliding pillar rack 406 moves upward to drive the sliding pillar gear 407 to rotate, the sliding pillar gear 407 rotates to drive the upward flap valve 401 to rotate, the upward flap valve 401 rotates to complete the upper valve opening operation, after the unloading is completed, the sliding arm 107 moves downward for the second time, the supporting plate continues to move downward, the top pillar 402 continues to move upward relative to the supporting plate 403, and at this time, the spring between the sliding pillar rack 406 and the tray 213 is in a compressed state and cannot continue to be compressed, due to the action of the spring piece III 404, the upper end of the spring piece III 404 is turned for a certain angle and is separated from the open slot of the sliding column 405, the sliding column 405 moves downwards under the action of the tray 213, and the upper flap valve 401 is closed again.

The upper fixed mounting of gag lever post 314 has connecting rod 408, fixed mounting has connecting rod rack 409 on the connecting rod 408, the last rotation of tank wagon 201 installs connecting rod gear 410, connecting rod rack 409 forms the rack and pinion cooperation with connecting rod gear 410, slidable mounting has control lever 412 on the tank wagon 201, fixed mounting has control lever rack 411 on the control lever 412, control lever rack 411 forms the rack and pinion cooperation with connecting rod gear 410, the last rotation of tank wagon 201 installs flap valve 414 down, fixed mounting has rotation connecting rod 413 on flap valve 414 down, rotation connecting rod 413 and control lever 412 sliding connection. In the first downward movement of the sliding arm 107, the limiting rod 314 moves forward to drive the connecting rod 408 to move forward, the connecting rod 408 drives the connecting rod rack 409 to move forward, the connecting rod rack 409 drives the connecting rod gear 410 to rotate, the connecting rod gear 410 rotates to drive the control rod rack 411 to move upward, the control rod rack 411 moves upward to drive the control rod 412 to move upward, the control rod 412 moves upward to drive the rotating connecting rod 413 to swing upward, and the rotating connecting rod 413 swings to drive the lower flap valve 414 to rotate, so that the valve at the lower part is opened; in the second downward movement of the sliding arm 107, the heat-insulating cover 306 moves downward to a position above the lower pressing column 317, the lower pressing column 317 is pressed downward, the lower pressing column 317 moves downward to drive the inclined plane plug block 319 to move downward, the inclined plane plug block 319 moves downward to drive the inclined plane plug block 320 to move horizontally, the inclined plane plug block 320 moves horizontally to drive the limiting rod 314 to move backward, the limiting rod 314 moves backward, and finally the lower flap valve 414 is driven to rotate through the connecting rod 408 and other parts, and the lower valve is closed.

Claims

1. The utility model provides a chemical tanker cryogenic liquid device of unloading, includes automatic alignment mechanism (1) and automatic stop gear (2), and automatic alignment mechanism (1) is including unloading base (101), and automatic stop gear (2) include tank wagon (201), and unloading base (101) fixed mounting is on the wharf, and tank wagon (201) are gone through the pier, and automatic alignment mechanism (1) are used for unloading its characterized in that to the cryogenic liquid in tank wagon (201):

the automatic aligning mechanism (1) further comprises a rotating arm (102), the rotating arm (102) is installed on the unloading base (101), an extending arm (103) is installed on the rotating arm (102) in a sliding mode, a sliding arm (107) is installed on the extending arm (103) in a sliding mode, the sliding arm (107) penetrates into the tank car (201) in a sliding mode to enable the automatic limiting mechanism (2) to be connected with the automatic aligning mechanism (1), and the automatic aligning mechanism (1) unloads the tank car (201);

the automatic limiting mechanism (2) further comprises a cone opening limiting column (202), the cone opening limiting column (202) is fixedly installed on the tank car (201), a sliding rod (203) is installed on the cone opening limiting column (202) in a sliding mode, a sliding rod spring (205) is fixedly installed on the sliding rod (203), one end of the sliding rod spring (205) is fixedly connected with the sliding rod (203), the other end of the sliding rod spring (205) is fixedly connected with the cone opening limiting column (202), a spring piece I (204) is fixedly installed on the sliding rod (203), a bolt rod (206) is installed on the cone opening limiting column (202) in a sliding mode, a bolt rod spring (207) is fixedly installed on the bolt rod (206), one end of the bolt rod spring (207) is fixedly connected with the bolt rod (206), the other end of the bolt rod spring (207) is fixedly connected with the cone opening limiting column (202), a rack column (208) is installed on the cone opening limiting column (202) in a sliding mode, be equipped with the pinhole on rack post (208), rack post (208) can't reciprocate when inserting rack post (208) in bolt pole (206), fixed mounting has rack post spring (209) on rack post (208), the one end and rack post (208) fixed connection of rack post spring (209), the other end and the spacing post of bevel connection (202) fixed connection of rack post spring (209), fixed mounting has spacing rack (210) on rack post (208), it installs initiative spacing post (212) to rotate on the spacing post of bevel connection (202), spacing post (212) of initiative is used for spacing to sliding arm (107), fixed mounting has spacing gear (211) on spacing post (212) of initiative, spacing gear (211) and spacing rack (210) form the gear and rack cooperation.

2. The chemical tanker cryogenic liquid unloading apparatus of claim 1, wherein: a screw rod (104) is rotatably arranged on the rotating arm (102), the screw rod (104) and the extension arm (103) form threaded fit, a telescopic motor (105) is fixedly arranged on the rotating arm (102), and the screw rod (104) is fixedly connected with an output shaft of the telescopic motor (105); a rotating motor (106) is fixedly arranged on the unloading base (101), an output shaft of the rotating motor (106) is fixedly connected with a rotating arm (102), and the rotating arm (102) is rotatably arranged on the unloading base (101); a sliding arm rack (108) is fixedly installed on the sliding arm (107), a lifting motor (109) is fixedly installed on the sliding arm (107), a lifting gear (110) is fixedly installed on an output shaft of the lifting motor (109), and the sliding arm rack (108) and the lifting gear (110) form gear and rack matching.

3. The chemical tanker cryogenic liquid unloading apparatus of claim 2, wherein: the taper self-locking mechanism (3) comprises an upper taper column (302), the upper taper column (302) is in sliding connection with the sliding arm (107), an upper reset spring (301) is fixedly mounted on the upper taper column (302), one end of the upper reset spring (301) is fixedly connected with the upper taper column (302), the other end of the upper reset spring (301) is fixedly connected with the sliding arm (107), a connecting sleeve (303) is fixedly mounted on the upper taper column (302), and the connecting sleeve (303) is in sliding connection with the sliding arm (107); a lower taper sleeve (305) is slidably mounted on the tank car (201), a lower reset spring (304) is fixedly mounted on the lower taper sleeve (305), one end of the lower reset spring (304) is fixedly connected with the lower taper sleeve (305), the other end of the lower reset spring (304) is fixedly connected with the tank car (201), a lower taper sleeve connecting rod (307) is fixedly mounted on the lower taper sleeve (305), a reversing component is fixedly mounted on the lower taper sleeve connecting rod (307), a spring piece II (312) is fixedly mounted on the reversing component, a limiting bolt (313) is slidably mounted on the tank car (201), the limiting bolt (313) is in contact with the spring piece II (312), a limiting rod (314) is slidably mounted on the tank car (201), a pin hole is formed in the limiting rod (314), the limiting bolt (313) cannot move on the tank car (201) when inserted into the limiting rod (314), and a limiting spring (315) is fixedly mounted on the limiting rod (314), one end and gag lever post (314) fixed connection of spacing spring (315), the other end and tank wagon (201) fixed connection of spacing spring (315), fixed mounting has limiting plate (316) on spacing spring (315), is equipped with the ring channel on last awl post (302), goes up awl post (302) and can't remove in the vertical direction when limiting plate (316) insert the ring channel of last awl post (302), accomplishes the axial spacing to last awl post (302).

4. A chemical tanker cryogenic liquid unloading apparatus according to claim 3, wherein: the stiffness coefficient of the upper return spring (301) is larger than that of the lower return spring (304).

5. The chemical tanker cryogenic liquid unloading apparatus of claim 4, wherein: the reversing assembly comprises a reversing rack I (308), the reversing rack I (308) is fixedly mounted on a lower taper sleeve connecting rod (307), a reversing gear I (309) is rotatably mounted on a tank car (201), the reversing gear I (309) and the reversing rack I (308) form a gear-rack fit, a reversing gear II (310) is fixedly mounted on the reversing gear I (309), a reversing rack II (311) is slidably mounted on the tank car (201), the reversing rack II (311) and the reversing gear II (310) form a gear-rack fit, and a spring piece II (312) is fixedly mounted on the reversing rack II (311).

6. The chemical tanker cryogenic liquid unloading device of claim 5, wherein: a lower compression leg (317) is arranged on the tank car (201) in a sliding manner, a lower compression leg spring (318) is fixedly arranged on the lower compression leg (317), one end of the lower compression leg spring (318) is fixedly connected with the lower compression leg (317), the other end of the lower compression leg spring (318) is fixedly connected with the tank car (201), an inclined plane insert block (319) is fixedly arranged on the lower compression leg (317), an inclined plane insert plate (320) is fixedly arranged on the limiting rod (314), and the inclined plane insert block (319) is inserted on the inclined plane insert plate (320) in a sliding manner.

7. The chemical tanker cryogenic liquid unloading apparatus of claim 6, wherein: a heat-insulating cover (306) is fixedly installed on the sliding arm (107), a sealing groove (321) is fixedly installed on the tank wagon (201), and the heat-insulating cover (306) enters the sealing groove (321) in the downward moving process of the sliding arm (107) and is used for insulating low-temperature liquid.