CN213235145U - Quick type intermittent type barring gear - Google Patents
Quick type intermittent type barring gear Download PDFInfo
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- CN213235145U CN213235145U CN202021699693.5U CN202021699693U CN213235145U CN 213235145 U CN213235145 U CN 213235145U CN 202021699693 U CN202021699693 U CN 202021699693U CN 213235145 U CN213235145 U CN 213235145U
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Abstract
A quick intermittent barring device comprises an oil tank, a quick control oil circuit system, a hydraulic cylinder cover, a pressure-reducing dustproof sealing assembly, a hydraulic cylinder body, a piston rod, a piston sealing assembly, a detachable connecting piece, a transmission rod assembly, a barring hook, a barring ratchet wheel and a hook angle self-adjusting mechanism, wherein the oil tank is connected with the quick control oil circuit system; a pressure-reducing dustproof sealing assembly is arranged at the connecting position of the upper end of the piston rod and the cover position of the hydraulic cylinder, a notch is formed in the sealing position of a pressure-reducing dustproof sealing ring of the piston sealing assembly, one end of the detachable connecting piece is connected with the piston rod, the other end of the detachable connecting piece is connected with the transmission rod assembly, and the transmission rod assembly is connected with one end of the turning hook; the barring ratchet wheel is in contact with the other end of the barring hook, and the barring hook is connected with the hook angle self-adjusting mechanism.
Description
Technical Field
The utility model relates to a turbomachinery barring field, concretely relates to quick type intermittent type barring device.
Background
The jigger is the main equipment for eliminating the thermal bending of the rotor before the impact rotation and after the shutdown of the turbine device. Before the turbine rotor rushes to rotate and during the unit stopping process, the rotor of the barring gear stops rotating, and the rotor can generate thermal bending. In this case, if the turbomachinery is restarted, a scuffing failure may be caused. To avoid such accidents, turbomachines are equipped with turning gear.
In order to solve the problem of thermal bending caused by the stop rotation of a rotor of a steam turbine, application number 201120452299.6 discloses a hydraulic barring device, wherein barring control in two modes is realized by two independent modules of a hydraulic mechanism and a manual mechanism, but the equipment does not consider the problem of investment cost increase caused by the fact that the two operation modes of barring are respectively provided with mechanisms such as respective pull rods, spring plates and the like.
In order to solve the problem of thermal bending caused after the rotor of the conventional barring gear stops rotating, application number 201120452299.6 discloses a hydraulic barring gear, which pushes a latch on a hook to be embedded into a tooth groove of a ratchet wheel when a piston moves upwards or under manual action, so that the barring motion is realized. However, the device does not consider that the elasticity of the spring piece is reduced after the spring piece is used for a period of time, and the turning hook is easy to slip.
In addition, the hydraulic device of the existing hydraulic barring gear is provided with an oil outlet pipeline and an oil inlet pipeline, and a reciprocating period is completed by the piston depending on the gravity of the piston in the descending process, so that the control period has certain delay. And, hydraulic pressure barring mechanism piston and its piston rod adopt multilayer O type sealing washer to seal, because add the sealing washer quantity limited, lead to the oil storage area less, the piston up-down quick travel in-process accelerates the ageing of sealing washer for seal structure inefficacy.
Disclosure of Invention
In order to solve the problem, the utility model aims to provide a quick type intermittent type barring gear.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a quick intermittent barring device comprises an oil tank 1, a quick control oil circuit system 2, a hydraulic cylinder cover 3, a pressure reduction dustproof type sealing assembly 4, a hydraulic cylinder body 5, a piston rod 6, a piston sealing assembly 7, a detachable connecting piece 8, a transmission rod assembly 9, a barring hook 10, a barring ratchet wheel 11 and a hook angle self-adjusting mechanism 12.
The oil tank 1 is connected with the rapid control oil circuit system 2, the upper end of the hydraulic cylinder body 5 is provided with a hydraulic cylinder cover 3, a piston at the bottom end of the piston rod 6 is arranged in the hydraulic cylinder body 5, and the piston and the hydraulic cylinder body 5 are sealed by a piston sealing assembly 7; a pressure-reducing dustproof sealing assembly 4 is arranged at the connecting position of the upper end of the piston rod 6 and the hydraulic cylinder cover 3; the pressure reducing dustproof sealing assembly 4 and the piston sealing assembly 7 are provided with a certain number of notches at the sealing positions of the pressure reducing sealing rings, and the notches can be square or zigzag.
One end of the detachable connecting piece 8 is connected with the piston rod 6, the other end of the detachable connecting piece is connected with the transmission rod assembly 9, and the transmission rod assembly 9 is connected with one end of the turning hook 10; the turning ratchet wheel 11 is in contact with the other end of the turning hook 10, and the turning hook 10 is connected with the hook angle self-adjusting mechanism 12.
The rapid control oil way system 2 comprises a submerged pump 211, an oil tank oil return flow passage 212, a control oil return flow passage 213, a control oil inlet flow passage 214, a piston top oil return flow passage 215, a regulating valve I2161, a regulating valve II 2162, a regulating valve III 2163, a regulating valve IV 2164 and a piston bottom oil inlet flow passage 217; the immersed pump 211 is placed in the oil tank 1, the outlet of the immersed pump 211 is connected with the control oil inlet flow channel 214, and the control oil inlet flow channel 214 is connected with the piston bottom oil inlet flow channel 217 through a tee joint; the oil tank 1 is communicated with an oil tank return flow passage 212, and the oil tank return flow passage 212 is connected with a control oil return flow passage 213 and a piston top return flow passage 215 through a tee joint; the piston rod 6 is controlled to reciprocate up and down by controlling the closing and opening of the four regulating valves.
The piston sealing assembly 7 comprises a tetrafluoro sealing ring I711, a first decompression type sealing ring 712 and a tetrafluoro sealing ring II 713, wherein the tetrafluoro sealing ring I711 and the tetrafluoro sealing ring II 713 are arranged at two ends of the first decompression type sealing ring 712.
Decompression dust protected seal assembly 4 includes dust protected sealing washer 411, tetrafluoro sealing ring 412, second decompression formula sealing ring 413, dust protected sealing washer 411 sets up in hydraulic cylinder cap 3 upper end, tetrafluoro sealing ring 412, second decompression formula sealing ring 413 establish at dust protected sealing washer 411 lower extreme.
The transmission rod assembly 9 comprises a pressure rod 911, a pin shaft 912, a fixing plate 913, a locking stud 914, a reciprocating torque rod 915, a pin 916, a pressure rod fixing block 917, a base 918 and a guide slideway 919, wherein one end of the pressure rod 911 is connected with the reciprocating torque rod 915 through the pin shaft 912, the other end of the pressure rod 911 is connected with a pressure rod fixing block 917 through the pin 916, and the pressure rod fixing block 917 is fixedly connected with the base 918; the guide slides 919 are secured to the base 918 by securing plates 913 and locking studs 914.
The detachable connecting piece 8 comprises a universal transmission ball 811 and a detachable screw 812, the universal transmission ball 811 is arranged in a circular cavity in one end of the pressing rod 911, one end of the detachable screw 812 is connected with the universal transmission ball 811, and the other end of the detachable screw is connected with the piston rod 6.
The hook angle self-adjusting mechanism 12 comprises a fixed base 121, a spring 122, a limiting column 123 and a guide ball 124, wherein the spring 122 is installed in the fixed base 121, the spring 122 is connected with the guide ball 124 through the limiting column 123, and the guide ball 124 is arranged in a guide rail in the turning hook 10; one end of the barring hook 10 is connected with the reciprocating moment rod 915 through a pin; the latch at the bottom of the turning hook 10 is inserted into the ratchet tooth groove to drive the turning ratchet 11 to rotate.
Compare with current hydraulic pressure barring, the utility model has the advantages of it is following.
1. The utility model relates to a quick type intermittent type barring device passes through detachable connections 8 of 6 upper ends of piston rod, realizes the combination of manual barring device and hydraulic pressure barring device, guarantees to have a power failure or the hydraulic pump trouble back at the device, can throw off the detachable connections 8 manual that piston rod 6 and transfer line subassembly 9 link to each other, and manual control transfer line subassembly 9 moves from top to bottom to make barring couple 10 drive the rotatory barring work of accomplishing of barring ratchet 11.
2. The utility model relates to a quick type intermittent type barring device is equipped with couple angle self-adjustment mechanism 12 through barring couple 10 left side, realizes barring couple 10 in the regulation of certain angle, has avoided barring couple 10 and barring ratchet 11 to skid.
3. The utility model relates to a quick type intermittent type barring device carries out oil feed, oil return control through quick control speed control oil piping system 2 to hydraulic cylinder body 5, does not rely on piston rod 6 and piston body self gravity to make it get back to initial position, guarantees that the removal of piston rod 6 is faster, more autonomic, solves the problem of the delay of piston rod 6.
4. The utility model relates to a rapid intermittent barring gear, which is sealed by a piston sealing component 7 between a piston rod 6 and a hydraulic cylinder body 5; be equipped with decompression dust protected seal assembly 4 between piston rod 6 and the hydraulic cylinder lid 3, it is more convenient to make seal assembly dismantle, and the leakproofness is better to reach the decompression effect.
Drawings
Fig. 1 is the utility model relates to a quick type intermittent type barring gear schematic structure.
Fig. 2 is the utility model relates to a quick type intermittent type barring gear quick control oil circuit sketch map.
Fig. 3 is the utility model discloses a quick type intermittent type barring gear piston sealing ring subassembly sketch map.
Fig. 4 is the utility model relates to a quick type intermittent type barring gear decompression dust protected seal assembly sketch map.
Fig. 5 is the utility model discloses a quick type intermittent type barring gear transfer line subassembly sketch map.
Fig. 6 is the schematic view of the detachable connection member of the rapid intermittent barring gear of the utility model.
Fig. 7 is a schematic view of the hook angle self-adjusting mechanism of the rapid intermittent barring gear of the present invention.
Detailed Description
The technical solution in the embodiment of the present invention will be removed and completely described with reference to the drawings in the embodiment of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.
Example one
Hydraulic jigger mode
As shown in fig. 1, 2, 3, 4, 5, 6, and 7, a rapid intermittent jigger device includes: the device comprises an oil tank 1, a quick control oil circuit system 2, a hydraulic cylinder cover 3, a pressure-reducing dustproof sealing assembly 4, a hydraulic cylinder body 5, a piston rod 6, a piston sealing assembly 7, a detachable connecting piece 8, a transmission rod assembly 9, a turning hook 10, a turning ratchet wheel 11 and a hook angle self-adjusting mechanism 12.
As shown in fig. 1, 2, 3, 4, 5, 6, and 7, a rapid intermittent jigger device includes: the device comprises an oil tank 1, a quick control oil circuit system 2, a hydraulic cylinder cover 3, a pressure-reducing dustproof sealing assembly 4, a hydraulic cylinder body 5, a piston rod 6, a piston sealing assembly 7, a detachable connecting piece 8, a transmission rod assembly 9, a turning hook 10, a turning ratchet wheel 11 and a hook angle self-adjusting mechanism 12.
The oil tank 1 is connected with a quick control oil way system 2, the oil tank 1 supplies oil to the quick control oil way system 2, return oil generated by the quick control oil way system 2 flows back to the oil tank 1 through an oil return channel, and the other side of the quick control oil way system 2 is connected with the hydraulic cylinder body 5; the upper end of the hydraulic cylinder body 5 is provided with a hydraulic cylinder cover 3, a piston at the bottom end of the piston rod 6 is arranged in the hydraulic cylinder body 5, and the piston and the hydraulic cylinder body 5 are sealed by a piston sealing assembly 7; a pressure-reducing dustproof sealing assembly 4 is arranged at the connecting position of the upper end of the piston rod 6 and the hydraulic cylinder cover 3; the pressure reducing dustproof sealing assembly 4 and the piston sealing assembly 7 are provided with a certain number of notches at the sealing positions of the pressure reducing sealing rings, and the notches can be square or zigzag.
In the hydraulic barring process of the rapid intermittent barring device, the rapid control oil way system 2 supplies oil and returns oil to the hydraulic cylinder body 5 and controls the up-and-down reciprocating motion of the piston rod 6, and the piston rod 6 further realizes barring work through a detachable connecting piece 8, a transmission rod assembly 9, a barring hook 10, a barring ratchet wheel 11 and a hook angle self-adjusting mechanism 12; the specific working process is as follows.
Opening a regulating valve II 2162 and a regulating valve III 2163, closing the regulating valve I2161 and a regulating valve IV 2164, placing the immersed pump 211 in the oil tank 1 and pumping oil to the control oil inlet flow passage 214, allowing hydraulic oil to enter the upper part of the piston of the hydraulic cylinder 5 and compress the piston to the lower part of the hydraulic cylinder 5, and returning the hydraulic oil at the lower part of the piston of the hydraulic cylinder 5 to the oil tank 1 through the control oil return flow passage 213 and the oil tank return flow passage 212; when hydraulic oil compresses the piston to the lowest end of the hydraulic cylinder body 5, the regulating valve II 2162 and the regulating valve III 2163 are closed, the regulating valve I2161 and the regulating valve IV 2164 are opened, the immersed pump 211 pumps oil to the oil inlet flow passage 217 at the bottom of the piston, the hydraulic oil enters the lower part of the piston of the hydraulic cylinder body 5 and compresses the piston to the upper part of the hydraulic cylinder body 5, and the hydraulic oil at the upper part of the piston of the hydraulic cylinder body 5 returns to the oil tank 1 through the piston top oil return flow passage 215 and the oil tank oil return flow; the direction of the oil path is changed by controlling the four regulating valve switches to realize the up-and-down reciprocating motion of the piston rod 6.
The piston rod 6 is connected with a pressure lever 911 through a detachable connecting piece 8, the pressure lever 911 is connected with a reciprocating moment rod 915 through a pin shaft 912, and the reciprocating moment rod 915 has the same motion mode as the piston rod 6; the reciprocating moment rod 915 is connected with the barring hook 10, and the barring hook 10 is embedded into the barring ratchet wheel 11 in the tooth groove of the barring ratchet wheel 11 through a plug pin at the bottom of the barring hook to realize barring work; in the turning process, the guide ball 124 is arranged in the guide rail of the turning hook 10, when the turning hook 10 moves downwards to rotate the turning ratchet wheel 11, the turning hook 10 compresses the spring 122 through the limiting column 123, and when the turning hook 10 moves upwards to be separated from the turning ratchet wheel 11, the spring 122 releases and pushes the limiting column 123 to enable the turning hook 10 to return to the initial position; in the whole turning process, the turning hook 10 is under the action of the spring force of the spring 122, so that the bolt at the bottom of the turning hook 10 cannot slip with the turning ratchet wheel 11, and the turning process is stable.
Example two
Manual barring mode
When the hydraulic barring system fails, the hydraulic barring system needs to be converted into a manual barring, the manual barring mode is different from the hydraulic barring mode except for a power source, and the connection mode among the transmission rod assembly 9, the barring hook 10, the barring ratchet wheel 11 and the hook angle self-adjusting mechanism 12 is completely the same as the hydraulic barring mode, and is not described again in this embodiment; the difference lies in that when the hydraulic barring system fails, only the detachable screw 812 needs to be detached to separate the pressure lever 911 from the piston rod 6, and the manual barring is realized by manually shaking the pressure lever 911 up and down.
Claims (8)
1. The utility model provides a quick type intermittent type barring device, includes oil tank (1), quick control oil piping system (2), hydraulic cylinder lid (3), decompression dust protected seal assembly (4), hydraulic cylinder body (5), piston rod (6), piston seal assembly (7), detachable connections piece (8), transfer line subassembly (9), barring couple (10), barring ratchet (11), couple angle self-adjustment mechanism (12), its characterized in that: the oil tank (1) is connected with the rapid control oil circuit system (2), a hydraulic cylinder cover (3) is arranged at the upper end of the hydraulic cylinder body (5), a piston at the bottom end of the piston rod (6) is arranged in the hydraulic cylinder body (5), and the piston and the hydraulic cylinder body (5) are sealed by a piston sealing assembly (7); a pressure-reducing dustproof sealing assembly (4) is arranged at the connecting position of the upper end of the piston rod (6) and the hydraulic cylinder cover (3); notches are formed in the sealing positions of the pressure-reducing sealing rings of the pressure-reducing dustproof sealing assembly (4) and the piston sealing assembly (7), one end of the detachable connecting piece (8) is connected with the piston rod (6), the other end of the detachable connecting piece is connected with the transmission rod assembly (9), and the transmission rod assembly (9) is connected with one end of the turning hook (10); the turning ratchet wheel (11) is in contact with the other end of the turning hook (10), and the turning hook (10) is connected with the hook angle self-adjusting mechanism (12).
2. The rapid intermittent barring apparatus according to claim 1, wherein the rapid control oil path system (2) comprises a submersible pump (211), a tank oil return flow path (212), a control oil return flow path (213), a control oil inlet flow path (214), a piston top oil return flow path (215), a regulating valve i (2161), a regulating valve ii (2162), a regulating valve iii (2163), a regulating valve iv (2164), a piston bottom oil inlet flow path (217); the immersed pump (211) is placed in the oil tank (1), the outlet of the immersed pump (211) is connected with the control oil inlet flow channel (214), and the control oil inlet flow channel (214) is connected with the piston bottom oil inlet flow channel (217) through a tee joint; the oil tank (1) is communicated with an oil tank oil return flow channel (212), and the oil tank oil return flow channel (212) is connected with a control oil return flow channel (213) and a piston top oil return flow channel (215) through a tee joint.
3. A rapid intermittent jigger device as claimed in claim 1, wherein the piston seal assembly (7) comprises a tetrafluoro seal ring i (711), a first decompression seal ring (712), and a tetrafluoro seal ring ii (713), and the tetrafluoro seal ring i (711) and the tetrafluoro seal ring ii (713) are provided at both ends of the first decompression seal ring (712).
4. The quick intermittent jigger device as claimed in claim 1, wherein the pressure-reducing and dust-proof sealing assembly (4) comprises a dust-proof sealing ring (411), a tetrafluoro sealing ring (412) and a second pressure-reducing sealing ring (413), the dust-proof sealing ring (411) is arranged at the upper end of the hydraulic cylinder cover (3), and the tetrafluoro sealing ring (412) and the second pressure-reducing sealing ring (413) are arranged at the lower end of the dust-proof sealing ring (411).
5. The quick intermittent barring device according to claim 1 is characterized in that the transmission rod assembly (9) comprises a pressure lever (911), a pin shaft (912), a fixing plate (913), a locking stud (914), a reciprocating moment lever (915), a pin (916), a pressure lever fixing block (917), a base (918) and a guide slideway (919), one end of the pressure lever (911) is connected with the reciprocating moment lever (915) through the pin shaft (912), the other end of the pressure lever (911) is connected with a pressure lever fixing block (917) through the pin (916), and the pressure lever fixing block (917) is fixedly connected with the base (918); the guide slide (919) is fixed on the base (918) by a fixing plate (913) and a locking stud (914).
6. A rapid intermittent jigger device as claimed in claim 5, wherein said detachable connection member (8) comprises a universal driving ball (811) and a detachable screw (812), said universal driving ball (811) is disposed in a circular cavity inside one end of said pressing rod (911), one end of said detachable screw (812) is connected with said universal driving ball (811) and the other end is connected with said piston rod (6).
7. A fast intermittent barring gear according to claim 1 characterised in that the hook angle self adjustment mechanism (12) comprises a fixed base (121), a spring (122), a limit post (123), a guide ball (124), the fixed base (121) is internally provided with the spring (122), the spring (122) is connected with the guide ball (124) through the limit post (123), and the guide ball (124) is in a guide rail in the barring hook (10); one end of the barring hook (10) is connected with the reciprocating torque rod (915) through a pin column, and a plug pin at the bottom of the barring hook (10) is embedded into a ratchet tooth groove so as to drive the barring ratchet wheel (11) to rotate.
8. A rapid intermittent jigger unit as claimed in claim 1, wherein the notches at the sealing positions of the pressure-reducing sealing rings of the pressure-reducing dustproof sealing assembly (4) and the piston sealing assembly (7) are square or zigzag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021699693.5U CN213235145U (en) | 2020-08-15 | 2020-08-15 | Quick type intermittent type barring gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021699693.5U CN213235145U (en) | 2020-08-15 | 2020-08-15 | Quick type intermittent type barring gear |
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| Publication Number | Publication Date |
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| CN213235145U true CN213235145U (en) | 2021-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021699693.5U Active CN213235145U (en) | 2020-08-15 | 2020-08-15 | Quick type intermittent type barring gear |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111852583A (en) * | 2020-08-15 | 2020-10-30 | 新疆新业能源化工有限责任公司 | Changeable quick type intermittent type barring gear |
-
2020
- 2020-08-15 CN CN202021699693.5U patent/CN213235145U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111852583A (en) * | 2020-08-15 | 2020-10-30 | 新疆新业能源化工有限责任公司 | Changeable quick type intermittent type barring gear |
| CN111852583B (en) * | 2020-08-15 | 2024-04-19 | 新疆新业能源化工有限责任公司 | Switchable quick intermittent jigger device |
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