CN117168704B - Sealing grease water pressure resistance tightness testing device for shield tunneling machine - Google Patents
Sealing grease water pressure resistance tightness testing device for shield tunneling machine Download PDFInfo
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- CN117168704B CN117168704B CN202311446944.7A CN202311446944A CN117168704B CN 117168704 B CN117168704 B CN 117168704B CN 202311446944 A CN202311446944 A CN 202311446944A CN 117168704 B CN117168704 B CN 117168704B
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- wall
- rack
- safety cover
- sealing grease
- cabin
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- 238000007789 sealing Methods 0.000 title claims abstract description 80
- 239000004519 grease Substances 0.000 title claims abstract description 58
- 238000012360 testing method Methods 0.000 title claims abstract description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 230000005641 tunneling Effects 0.000 title description 4
- 238000001704 evaporation Methods 0.000 claims abstract description 44
- 230000008020 evaporation Effects 0.000 claims abstract description 43
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 238000005485 electric heating Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 244000309464 bull Species 0.000 abstract 1
- 230000007704 transition Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 230000000246 remedial effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The invention provides a sealing grease water pressure resistance sealing performance testing device for a shield machine. The utility model relates to a sealed grease test technical field, including bottom plate, lifting unit, carrier component and heating element, the upper surface fixed mounting of bottom plate has the urceolus. This scheme is finally realized rotating the first rack of rotatory first gear engagement of output shaft at the outer wall of urceolus and is slided from top to bottom through starting first motor to make first rack pulling insurance lid carry out the position movement, so, can make insurance lid drive the bull stick and send into the inside of evaporation cabin with safety lid and carrier barrel, be connected wire and power this moment, make the electrothermal tube generate heat and heat, promote the temperature in the evaporation cabin, the heat resistance of sealed grease is judged according to sealed grease evaporation degree after the high temperature heating and phase transition, can carry out the leakproofness of evaporation test after finishing examining sealed grease, consequently, can test sealed grease and improve testing arrangement's functionality through the sealing performance after the high temperature.
Description
Technical Field
The invention relates to the technical field of sealing grease testing, in particular to a sealing grease water pressure resistance sealing performance testing device for a shield machine.
Background
In the tunneling process of the shield machine, in order to prevent external muddy water, mortar and the like from entering the shield, sealing treatment is required to be carried out between the shield tail and the duct piece, in the sealing of the shield machine, sealing grease is an important guarantee for ensuring the sealing performance, if the sealing performance of the shield machine fails, the damage caused by improper remedial measures is huge, and serious safety accidents are caused, so that the sealing grease required by the shield machine needs to be tested by using a testing device for sealing performance, the testing device is mainly used for simulating the environment in the shield construction, the testing device is provided with a water injection tank body, a workpiece coated by the sealing grease is placed in water of the tank body, the pressurizing device is used for pressurizing the water, and the aim of testing the water pressure sealing performance of the sealing grease is achieved by checking whether the water inlet condition occurs in the tested workpiece.
In the related art, the testing device is a single test, but the shield machine can generate high temperature in the operation process, so that not only the hydraulic pressure resistance and the tightness of the shield machine are required to be tested, but also the applicability of the shield machine in a high-temperature environment is required to be tested, and the existing testing device lacks an evaporation test on sealing grease, so that the environment in the shield machine cannot be completely simulated, and the problem of low functionality of the tightness testing device is caused.
Therefore, it is necessary to provide a sealing grease water pressure resistance tightness testing device for a shield machine so as to solve the technical problems.
Disclosure of Invention
The invention provides a sealing grease water pressure resistance sealing performance testing device for a shield machine, which solves the problem that the sealing performance testing device has low functionality because the environment in the shield machine cannot be completely simulated due to the lack of evaporation testing of sealing grease by the testing device.
In order to solve the technical problems, the sealing grease water pressure resistance tightness testing device for the shield machine comprises a bottom plate, a lifting assembly, a carrier assembly and a heating assembly, wherein an outer cylinder is fixedly arranged on the upper surface of the bottom plate;
the lifting assembly comprises a first rack and a second rack, the first rack and the second rack are respectively connected with the outer walls of the two sides of the outer cylinder in a sliding mode, the tops of the first rack and the second rack are synchronously and fixedly connected with a safety cover, a first gear is connected with an inner core at one side of the first rack, and a first motor is connected with a key groove at one end of the first gear;
the carrier assembly comprises a second motor and a carrier barrel, the second motor is fixedly arranged at the top of the safety cover through bolts, an output shaft of the second motor penetrates through the safety cover and extends to a key groove below the safety cover to be connected with a rotating rod, the bottom end of the rotating rod is fixedly connected with the safety cover, sliding blocks are annularly distributed on the peripheral side wall of the safety cover, and the number of the sliding blocks is four;
the material carrying barrels are fixedly arranged on the lower surface of the safety cover through bolts, a sealing plate is arranged at the bottom of each material carrying barrel, a plurality of through holes are formed in the sealing plate, clamping grooves are formed in the circumferential side walls of most material carrying barrels in an annular mode, and the number of the clamping grooves is three;
the inner part of the outer barrel is provided with an evaporation cabin, the inner wall of the evaporation cabin is provided with four limit grooves, the number of the limit grooves is four, and annular grooves are formed in the bottoms of the four limit grooves and in the inner wall of the evaporation cabin;
the heating assembly comprises four shields, the shields are fixedly arranged on the inner wall of the evaporation cabin, a plurality of air holes are formed in the inner wall of the shields, electric heating pipes are fixedly arranged in the shields, wires are arranged at the tops of the electric heating pipes, the wires penetrate through the shields and the outer cylinder, and a wire pipe is sleeved outside the wires.
Preferably, a pressurizing cabin is arranged below the evaporation cabin and positioned in the outer barrel, and an observation window is embedded in the inner wall of the pressurizing cabin.
Preferably, the pressurizing cabin is arranged outside and is positioned outside the outer cylinder, a pressurizing pump is fixedly arranged outside the pressurizing cabin, a water pipe is fixedly arranged below the pressurizing pump and is positioned on the outer wall of the outer cylinder, a valve is arranged inside the water pipe, and a water pump is arranged on one side of the water pipe.
Preferably, one side of the outer cylinder and the upper surface positioned on the bottom plate are provided with limiting components, each limiting component comprises a positioning seat, and an installation opening matched with the outer wall of the material carrying barrel is formed in the positioning seat.
Preferably, the inner wall annular distribution of installing port has the stopper, and the quantity of stopper has three, and three the inner wall of stopper all is connected with three through the bolt interlude fixture block of draw-in groove looks adaptation, and the quantity of fixture block has three.
Preferably, the outer walls of the three clamping blocks are fixedly connected with springs, the number of the springs is three, and the other ends of the springs are fixedly connected with the inner wall of the mounting opening.
Preferably, the outside of urceolus is equipped with the clearance subassembly, the clearance subassembly includes spacing seat, the inner wall of spacing seat is connected with the second gear through the bearing rotation.
Preferably, the outer wall of the second gear is connected with the outer wall of the second rack in a meshed mode, a connecting rod is connected to one end sliding key of the second gear, and a steel wire disc brush matched with the inner diameter of the carrying bucket is connected to the other end key groove of the connecting rod.
Compared with the related art, the sealing grease water pressure resistance tightness testing device for the shield machine has the following beneficial effects:
the first gear is meshed with the first rack through the rotation of the first motor to slide up and down on the outer wall of the outer barrel, so that the first rack pulls the safety cover to move in position, the safety cover can drive the rotary rod to convey the safety cover and the carrying barrel into the evaporation chamber, at the moment, the conducting wire is connected with the power supply, the conducting wire conveys electric energy to the electric heating tube, the temperature in the evaporation chamber is improved, then heat is discharged from the air holes of the plurality of shields to heat the evaporation chamber, the testing device is convenient for carrying out high-temperature heating evaporation test on sealing grease, heat resistance of the sealing grease can be judged according to the evaporation degree and phase change of the sealing grease after high-temperature heating, and sealing property of the sealing grease can be checked after the evaporation test is finished, so that the sealing grease can be tested for sealing property after the high temperature, and the functionality of the testing device can be improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a preferred structure provided by the present invention;
FIG. 2 is a side view of the device shown in FIG. 1;
FIG. 3 is a cross-sectional view of the outer barrel shown in FIG. 1;
FIG. 4 is a schematic view of a lifting assembly according to the present invention;
FIG. 5 is a schematic view of a carrier assembly according to the present invention;
FIG. 6 is a schematic view of a heating assembly according to the present invention;
FIG. 7 is a schematic view of the safety cover locking process shown in FIG. 5, wherein (a) is a front view of the safety cover in a downward sliding state, (b) is a front view of the safety cover in a state of reaching between the evaporation compartment and the pressurizing compartment, and (c) is a front view of the safety cover in a rotating state;
FIG. 8 is a schematic diagram of a flow chart of switching the carrier barrel shown in FIGS. 4 and 5, wherein (d) is an initial state front view of the carrier barrel, (e) is a state front view of the carrier barrel in the evaporation chamber, and (f) is a state front view of the carrier barrel in the pressurizing chamber;
FIG. 9 is a schematic view of a cleaning assembly according to the present invention;
FIG. 10 is a schematic diagram of a limiting assembly according to the present invention;
fig. 11 is a schematic diagram of a positioning process of the loading bucket shown in fig. 10, wherein (g) is a front view of the loading bucket entering the positioning seat, and (h) is a front view of the loading bucket locking with the positioning seat.
Reference numerals illustrate:
1. a bottom plate, a 2 and an outer cylinder;
3. the lifting assembly 31, the first rack 32, the second rack 33, the safety cover 34, the first gear 35 and the first motor;
4. a carrier assembly; 41. the second motor, 42, the rotating rod, 43, the safety cover, 44, the sliding block, 45, the material carrying barrel, 46, the sealing plate, 47, the through hole, 48 and the clamping groove;
5. the evaporation cabin is 6, the limiting groove is 7 and the annular groove;
8. the heating component 81, the shield 82, the air hole 83, the electric heating tube 84, the lead wire 85 and the wire tube;
9. a pressurizing cabin, 10 and an observation window; 11. the device comprises a booster pump, 12, a water pipe, 13, a valve, 14 and a water pump;
15. the device comprises a limiting component 151, a positioning seat 152, a mounting port 153, a limiting block 154, a clamping block 155 and a spring;
16. cleaning components 161, limiting seats 162, second gears 163, connecting rods 164 and steel wire disc brushes.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
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.
The invention provides a sealing grease water pressure resistance sealing performance testing device for a shield machine.
First embodiment:
referring to fig. 1 to 8, a device for testing hydraulic tightness of sealing grease for a shield machine comprises a bottom plate 1, a lifting assembly 3, a carrier assembly 4 and a heating assembly 8, wherein an outer cylinder 2 is fixedly arranged on the upper surface of the bottom plate 1;
the lifting assembly 3 comprises a first rack 31 and a second rack 32, the first rack 31 and the second rack 32 are respectively connected with the outer walls of the two sides of the outer cylinder 2 in a sliding mode, a safety cover 33 is synchronously and fixedly connected to the tops of the first rack 31 and the second rack 32, a first gear 34 is connected to an inner core at one side of the first rack 31, and a first motor 35 is connected to a key groove at one end of the first gear 34;
the carrier assembly 4, the carrier assembly 4 includes a second motor 41 and a carrier barrel 45, the second motor 41 is fixedly mounted on the top of the safety cover 33 through bolts, an output shaft of the second motor 41 extends to a key groove below the safety cover 33 through the safety cover 33 and is connected with a rotating rod 42, the bottom end of the rotating rod 42 is fixedly connected with a safety cover 43, sliding blocks 44 are annularly distributed on the peripheral side wall of the safety cover 43, and the number of the sliding blocks 44 is four;
the carrying drums 45 are fixedly arranged on the lower surface of the safety cover 43 through bolts, a sealing plate 46 is arranged at the bottom of each carrying drum 45, a plurality of through holes 47 are formed in each sealing plate 46, clamping grooves 48 are formed in the circumferential side walls of the plurality of carrying drums 45 in an annular mode, and the number of the clamping grooves 48 is three;
the inside of the outer barrel 2 is provided with an evaporation cabin 5, the inner wall of the evaporation cabin 5 is provided with limit grooves 6, the number of the limit grooves 6 is four, and annular grooves 7 are formed in the bottoms of the four limit grooves 6 and located on the inner wall of the evaporation cabin 5;
the heating assembly 8 comprises four shields 81, wherein the four shields 81 are fixedly arranged on the inner wall of the evaporation cabin 5, a plurality of air holes 82 are formed in the inner wall of the four shields 81, electric heating pipes 83 are fixedly arranged in the four shields 81, conducting wires 84 are arranged at the tops of the electric heating pipes 83, the conducting wires 84 penetrate through the shields 81 and the outer cylinder 2, and wire pipes 85 are sleeved outside the conducting wires 84;
the lower part of the evaporation cabin 5 and the inside of the outer barrel 2 are provided with a pressurizing cabin 9, and an observation window 10 is embedded in the inner wall of the pressurizing cabin 9.
The first motor 35 is started to rotate the output shaft to rotate the first gear 34 to engage the first rack 31 to slide up and down on the outer wall of the outer barrel 2, so that the first rack 31 pulls the safety cover 33 to move in position, therefore, the safety cover 33 can drive the rotary rod 42 to send the safety cover 43 and the carrier barrel 45 into the evaporation chamber 5, at the moment, the lead 84 is connected with a power supply, the lead 84 is used for conveying electric energy to the electric heating tube 83, the electric heating tube 83 is used for heating, the temperature in the evaporation chamber 5 is increased, then the heat is discharged through the air holes 82 of the plurality of shields 81 to heat the evaporation chamber 5, and the design is such that the test device is convenient for carrying out evaporation test on high-temperature heating of sealing grease, so that the heat resistance of the sealing grease can be judged according to the evaporation degree and phase change of the sealing grease after high-temperature heating;
please combine (d), (e) and (f) in fig. 8, wherein the initial position of the carrier 45 is shown in fig. (d), the clockwise rotation of the first gear 34 drives the first rack 31 to move downward as shown in fig. (e), the first rack 31 drives the safety cover 33, the rotating rod 42, the safety cover 43 and the carrier 45 to move downward in the downward moving state, the carrier 45 enters the evaporation chamber 5, and the continuous rotation of the first gear 34 drives the first rack 31 to move downward continuously as shown in fig. (f), and the carrier 45 enters the pressurizing chamber 9;
in addition, the first gear 34 can drive the first rack 31 to continuously move downwards to drive the safety cover 43 to approach the outer cylinder 2, when the safety cover 43 reaches the top of the outer cylinder 2, at the moment, the carrier 45 enters the pressurizing cabin 9, the second motor 41 is started to drive the rotating rod 42 to rotate the safety cover 43, so that the safety cover 43 rotates in the outer cylinder 2, and therefore, the safety cover 43 and the outer cylinder 2 are locked and fixed, the safety cover 43 is simple in locking structure and is not easy to loosen, and meanwhile, double-layer protection of the safety cover 43 and the safety cover 33 is used, so that the safety of the testing device in the pressurizing process is improved;
please combine (a), (b) and (c) in fig. 7, wherein the safety cover 43 slides down in the limit groove 6 through the slider 44 as shown in fig. (a), the slider 44 slides to the bottom of the limit groove 6 as shown in fig. (b), at this time, the safety cover 43 is located between the pressurizing compartment 9 and the evaporating compartment 5, and the safety cover 43 rotates inside the annular groove 7 as shown in fig. (c), at this time, the safety cover 43 is locked and fixed with the outer cylinder 2.
Second embodiment:
referring to fig. 1 to 5, a booster pump 11 is fixedly installed outside the pressure chamber 9 and outside the outer cylinder 2, a water pipe 12 is fixedly installed below the booster pump 11 and outside the outer cylinder 2, a valve 13 is installed inside the water pipe 12, and a water pump 14 is arranged at one side of the water pipe 12;
when the carrier barrel 45 moves into the pressurizing cabin 9, the water pump 14 is started to send water into the pressurizing cabin 9, when a certain amount of water reaches in the pressurizing cabin 9, the booster pump 11 is started to convey pressure in the pressurizing cabin 9, sealing grease in the carrier barrel 45 can be extruded by a certain pressure generated in the pressurizing cabin 9, the pressure is continuously increased to a certain degree, the pressurizing reaction of the sealing grease can be observed through the observation window 10, the water pressure is increased outside the carrier barrel 45, the state of the sealing grease when the inside of the shield tunneling machine is sealed can be simulated, the sealing grease can be sealed on the back surface, and the sealing performance of the sealing grease can be judged according to whether water enters into the carrier barrel 45.
Third embodiment:
referring to fig. 1 to 10, a limit assembly 15 is disposed on one side of the outer cylinder 2 and on the upper surface of the bottom plate 1, the limit assembly 15 includes a positioning seat 151, and an installation opening 152 adapted to the outer wall of the loading barrel 45 is formed in the positioning seat 151.
The inner wall annular distribution of mounting hole 152 has stopper 153, and the quantity of stopper 153 has three, and three the inner wall of stopper 153 all is connected with three through the bolt interlude fixture block 154 of draw-in groove 48 looks adaptation, and the quantity of fixture block 154 has three.
The outer walls of the three clamping blocks 154 are fixedly connected with springs 155, the number of the springs 155 is three, and the other ends of the springs 155 are fixedly connected with the inner wall of the mounting port 152.
The cleaning assembly 16 is arranged outside the outer cylinder 2, the cleaning assembly 16 comprises a limiting seat 161, and a second gear 162 is rotatably connected to the inner wall of the limiting seat 161 through a bearing.
The outer wall of the second gear 162 is meshed with the outer wall of the second rack 32, one end of the second gear 162 is connected with a connecting rod 163 through a sliding key, and a steel wire disc brush 164 matched with the inner diameter of the loading barrel 45 is connected with a key slot at the other end of the connecting rod 163;
referring to fig. 1 to 11 again, when the testing device tests the sealing grease, the first rack 31 drives the carrying bucket 45 to rotate in the manner that the second rack 32 is meshed with the second gear 162 when the evaporation compartment 5 and the pressurizing compartment 9 of the outer barrel 2 are moved and switched, so that the second rack 32 rotates counterclockwise when the second rack 32 moves downwards, and the second rack 32 rotates clockwise when the second rack 32 moves towards the evaporation compartment 5, so that the second gear 162 drives the connecting rod 163 and the wire disc brush 164 to rotate in a positive-negative exchange manner;
when the sealing grease is tested, a plurality of types of sealing grease with different types is required to be tested, a plurality of carrying drums 45 are required to be used as carriers of the sealing grease, so that the carrying drum 45 and the positioning seat 151 can be fixed by penetrating the last used carrying drum 45 through the mounting opening 152 of the positioning seat 151, the carrying drum 45 is in contact with the three clamping blocks 154 to press the springs 155, when the carrying drum 45 moves to a certain position, the carrying drum 45 is completely sleeved outside the steel wire disc brush 164, the steel wire disc brush 164 is in contact with the tested sealing grease, meanwhile, the clamping groove 48 on the outer wall of the carrying drum 45 moves to the position of the clamping block 154, at the moment, the clamping block 154 loses resistance, the clamping block 154 can be driven by resilience of the springs 155 to be inserted into the clamping groove 48 on the outer wall of the carrying drum 45, and the carrying drum 45 can be fixed with the positioning seat 151;
please refer to fig. 5, 10 and 11 (g) and (h), wherein the carrier 45 is shown in fig. g to penetrate through the mounting opening 152 shown in fig. 10, the clamping block 154 is attached to the carrier 45 at the outer wall of the carrier 45, the sealing plate 46 of the carrier 45 is shown in fig. h to be attached to the positioning seat 151 at a certain position, the clamping groove 48 shown in fig. 5 is shown in a proper position, and the clamping block 154 is pushed and turned by the spring 155 to be inserted into the clamping groove 48 to lock the carrier 45.
Referring to fig. 1 to 11 in combination, the working principle of the sealing grease water pressure resistance tightness testing device for a shield machine provided by the invention is as follows:
step S1, firstly, when a test is performed, a last used carrier barrel 45 penetrates through an installation opening 152 of a positioning seat 151, and the carrier barrel 45 is locked through the matching of a clamping block 154 and a clamping groove 48;
step S2, smearing sealing grease in a sealing plate 46 of a new carrier barrel 45, compacting the sealing grease to enable a through hole 47 to be blocked by the sealing grease, installing the carrier barrel 45 with a safety cover 33 through bolts, and installing a second motor 41 on the top of the safety cover 33;
step S3, a first motor 35 is started to rotate an output shaft to rotate a first gear 34 to engage a first rack 31 to slide up and down on the outer wall of the outer barrel 2, a material loading barrel 45 is sent into the evaporation chamber 5 through the lifting assembly 3, an electric heating tube 83 heats up, the temperature in the evaporation chamber 5 is raised, and then the heat is discharged through air holes 82 of a plurality of shields 81 to heat the evaporation chamber 5, so that an evaporation test is completed;
step S4, the first rack 31 pulls the safety cover 33 to move in position, the carrier barrel 45 is sent into the pressurizing cabin 9, when the sliding block 44 slides to the bottom of the limiting groove 6 and enters the annular groove 7, and at the moment, the carrier barrel 45 enters the pressurizing cabin 9;
step S5, starting a second motor 41 to drive a rotating rod 42 to rotate a safety cover 43, so that a sliding block 44 rotates in an annular groove 7, further, the sliding block 44 is far away from a limit groove 6 to lock and fix the safety cover 43 and an outer barrel 2, a water pump 14 sends water into a pressurizing cabin 9, when a certain amount of water reaches in the pressurizing cabin 9, a booster pump 11 is started to convey pressure in the pressurizing cabin 9, sealing grease in a material barrel 45 is extruded by a certain pressure generated in the pressurizing cabin 9, the sealing grease is continuously pressurized to a certain degree, and the sealing performance of the sealing grease is judged according to whether water enters into an inner barrel;
in step S6, simultaneously, when the first rack 31 drives the carrying bucket 45 to move and switch between the evaporation chamber 5 and the pressurizing chamber 9 of the outer barrel 2, the second rack 32 engages the second gear 162 to rotate the steel wire disc brush 164 in forward and reverse directions alternately, so as to fluffy the sealing grease in the carrying bucket 45.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the specification and drawings of the present invention or direct/indirect application in other related technical fields are included in the scope of the present invention.
Claims (6)
1. The device for testing the hydraulic pressure resistance and the tightness of the sealing grease of the shield machine is characterized by comprising a bottom plate, a lifting assembly, a carrier assembly and a heating assembly, wherein an outer cylinder is fixedly arranged on the upper surface of the bottom plate;
the lifting assembly comprises a first rack and a second rack, the first rack and the second rack are respectively connected with the outer walls of the two sides of the outer cylinder in a sliding mode, the tops of the first rack and the second rack are synchronously and fixedly connected with a safety cover, a first gear is connected with an inner core at one side of the first rack, and a first motor is connected with a key groove at one end of the first gear;
the carrier assembly comprises a second motor and a carrier barrel, the second motor is fixedly arranged at the top of the safety cover through bolts, an output shaft of the second motor penetrates through the safety cover and extends to a key groove below the safety cover to be connected with a rotating rod, the bottom end of the rotating rod is fixedly connected with the safety cover, sliding blocks are annularly distributed on the peripheral side wall of the safety cover, and the number of the sliding blocks is four;
the material carrying barrels are fixedly arranged on the lower surface of the safety cover through bolts, a sealing plate is arranged at the bottom of each material carrying barrel, a plurality of through holes are formed in the sealing plate, clamping grooves are formed in the circumferential side walls of most material carrying barrels in an annular mode, and the number of the clamping grooves is three;
the inner part of the outer barrel is provided with an evaporation cabin, the inner wall of the evaporation cabin is provided with four limit grooves, the number of the limit grooves is four, and annular grooves are formed in the bottoms of the four limit grooves and in the inner wall of the evaporation cabin;
the heating assembly comprises four shields, the four shields are fixedly arranged on the inner wall of the evaporation cabin, a plurality of air holes are formed in the inner wall of the four shields, electric heating pipes are fixedly arranged in the four shields, wires are arranged at the tops of the electric heating pipes, penetrate through the shields and the outer cylinder, and a wire pipe is sleeved outside each wire;
a pressurizing cabin is arranged below the evaporation cabin and inside the outer barrel, and an observation window is embedded in the inner wall of the pressurizing cabin;
the pressure generated in the pressurizing cabin can squeeze the sealing grease in the carrying bucket;
the pressurizing cabin is characterized in that a pressurizing pump is fixedly arranged outside the pressurizing cabin and outside the outer cylinder, a water pipe is fixedly arranged below the pressurizing pump and outside the outer cylinder, a valve is arranged inside the water pipe, and a water pump is arranged on one side of the water pipe;
the sealing grease is smeared in a sealing plate of a new carrying barrel, then the sealing grease is compacted, the through holes are plugged by the sealing grease, then the carrying barrel is mounted with the safety cover through bolts, and the second motor is mounted at the top of the safety cover.
2. The sealing grease water pressure resistance tightness testing device for the shield machine according to claim 1, wherein one side of the outer cylinder and the upper surface of the bottom plate are provided with limiting components, the limiting components comprise positioning seats, and mounting ports matched with the outer wall of the material carrying barrel are formed in the positioning seats.
3. The device for testing the hydraulic sealing performance of the sealing grease for the shield machine according to claim 2, wherein limit blocks are annularly distributed on the inner wall of the mounting opening, the number of the limit blocks is three, the inner walls of the three limit blocks are connected with clamping blocks matched with the three clamping grooves through bolts in a penetrating mode, and the number of the clamping blocks is three.
4. The sealing grease water pressure resistance tightness testing device for the shield machine according to claim 3, wherein the outer walls of the three clamping blocks are fixedly connected with springs, the number of the springs is three, and the other ends of the springs are fixedly connected with the inner wall of the mounting opening.
5. The sealing grease water pressure resistance tightness testing device for the shield machine according to claim 1, wherein a cleaning assembly is arranged outside the outer cylinder and comprises a limiting seat, and the inner wall of the limiting seat is rotationally connected with a second gear through a bearing.
6. The sealing grease water pressure resistance tightness testing device for the shield machine according to claim 5, wherein the outer wall of the second gear is connected with the outer wall of the second rack in a meshed manner, one end sliding key of the second gear is connected with a connecting rod, and a key groove at the other end of the connecting rod is connected with a steel wire disc brush which is matched with the inner diameter of the carrier barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311446944.7A CN117168704B (en) | 2023-11-02 | 2023-11-02 | Sealing grease water pressure resistance tightness testing device for shield tunneling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311446944.7A CN117168704B (en) | 2023-11-02 | 2023-11-02 | Sealing grease water pressure resistance tightness testing device for shield tunneling machine |
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| Publication Number | Publication Date |
|---|---|
| CN117168704A CN117168704A (en) | 2023-12-05 |
| CN117168704B true CN117168704B (en) | 2024-01-12 |
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| CN202311446944.7A Active CN117168704B (en) | 2023-11-02 | 2023-11-02 | Sealing grease water pressure resistance tightness testing device for shield tunneling machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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