A sealing grease pumpability testing device for shield machine

Abstract

The invention relates to the technical field of sealing grease pumpability testing, and discloses a sealing grease pumpability testing device for a shield machine, comprising a base, a support plate, a material storage barrel, a pressure column, a lifting mechanism, and a conversion testing mechanism. The support plate is fixed on the base, the material storage barrel is arranged on the top of the support plate, the material storage barrel is a cylinder structure with an open top and a closed bottom, a discharge hole is opened at the bottom of the material storage barrel, the lifting mechanism is arranged on the top of the support plate, and the pressure column is arranged on the lifting mechanism. The pressure column matches the material storage barrel and is located directly above the material storage barrel. The pressure column squeezes the sealing grease in the material storage barrel. When the pressure reaches a predetermined value, the pressure of the pressure column acts on the adjusting column, the top of the collecting barrel is in close contact with the bottom of the material storage barrel, and the discharge hole at the bottom of the material storage barrel is connected with the feed hole at the top of the collecting barrel. The pressure column continues to press down the sealing grease, thereby discharging the sealing grease into the collecting barrel through the discharge hole at the bottom of the material storage barrel and the feed hole at the top of the collecting barrel.

Description

Technical Field

[0001] The invention relates to the technical field of sealing grease pumpability testing, and in particular to a sealing grease pumpability testing device for a shield machine. Background Art

[0002] Sealing grease is a type of fluid material. Shield tail sealing grease is a sealing material injected by a wire brush of a tunnel shield used in shield construction of underground engineering. It is mainly filled with pressure to fill the gaps between the holes of the wire brush. The pumpability of the grease is a very important indicator. Usually, the pumpability test of the sealing grease is to fill the sealing grease in a test cylinder, push it at a certain air pressure on the top, so that the sealing grease is squeezed out from the capillary at the bottom, and then record the amount of sealing grease squeezed out within a certain period of time for testing. When it is squeezed through the capillary, there is sealing grease remaining in the capillary, which affects the test results. For this reason, a sealing grease pumpability test device for shield machines is needed. Summary of the invention

[0003] In order to solve the deficiencies of the prior art, the purpose of the present invention is to provide a sealing grease pumpability testing device for a shield machine.

[0004] In order to achieve the above technical objectives, the technical solution adopted by the present invention is as follows.

[0005] A sealing grease pumpability testing device for a shield machine, comprising:

[0006] A base, a support plate, a material storage barrel, a pressure column, a lifting mechanism, and a conversion and testing mechanism. The support plate is fixed on the base, the material storage barrel is arranged on the top of the support plate, the material storage barrel is a cylindrical structure with an open top and a closed bottom, a discharge hole is opened at the bottom of the material storage barrel, the lifting mechanism is arranged on the top of the support plate, the pressure column is arranged on the lifting mechanism, the pressure column matches the material storage barrel and is located directly above the material storage barrel, the conversion and testing mechanism is arranged on the base, and the material storage barrel is provided with a sealing component for sealing the discharge hole at the bottom of the material storage barrel.

[0007] As a further improvement of the present technical solution, the conversion test mechanism includes a support frame, a turntable, a load-bearing plate, a motor, and a collection test assembly. The support frame is arranged on the base, the motor is installed on the support frame, the output shaft of the motor is vertically upward, the turntable is coaxially fixed on the output shaft end of the motor, the load-bearing plate is connected to the edge of the turntable, three load-bearing plates are provided and are evenly spaced, and the collection test assembly is arranged on the load-bearing plate.

[0008] As a further improvement of the present technical solution, three collecting and testing assemblies are provided and are respectively arranged on three supporting plates, the collecting and testing assemblies include a collecting cylinder, a guide column, a guide rod, and a distance sensor. The collecting cylinder is located above the supporting plate, and the collecting cylinder is a cylindrical structure with closed two ends. A feeding hole is opened at the top of the collecting cylinder, the top of the guide column is fixedly connected to the bottom of the collecting cylinder, the bottom of the guide column passes through the plate surface of the supporting plate and is provided with a baffle, two guide columns are provided and are arranged in parallel, a spring 1 is sleeved on the guide column, one end of the spring 1 contacts the bottom of the collecting cylinder, and the other end of the spring 1 contacts the plate surface of the supporting plate, the distance sensor is arranged on the supporting plate and is directly below the collecting cylinder, the guide rod is horizontally fixedly connected to the wall of the collecting cylinder, and the guide rod is close to the bottom of the collecting cylinder.

[0009] As a further improvement of the present technical solution, the blocking assembly includes a fixed plate, a second connecting sleeve, a second connecting column, and a blocking block. The fixed plate is located on one side of the material storage barrel and is fixedly connected to the wall of the material storage barrel. One end of the second connecting sleeve is fixedly connected to the plate surface of the fixed plate, and the other end of the second connecting sleeve extends horizontally. Two connecting sleeves are provided and are arranged in parallel. The blocking block is located at the bottom of the material storage barrel. One end of the second connecting column is fixedly connected to the end of the blocking block, and the other end of the second connecting column extends horizontally and extends into the second connecting sleeve. A second spring is provided on the second connecting sleeve and the second connecting column. One end of the second spring is fixedly connected to the plate surface of the fixed plate, and the other end of the second spring is connected to the end of the blocking block. The top plane of the blocking block contacts the bottom of the material storage barrel, and the bottom of the blocking block is arranged inclined.

[0010] As a further improvement of the present technical solution, a trigger assembly is provided on one side of the support plate, the trigger assembly includes a connecting sleeve 1, a connecting column 1, a guide plate 1, and a guide plate 2. The guide plate 1 is located below the storage barrel, one end of the connecting sleeve 1 is fixedly connected to the plate surface of the support plate, the other end of the connecting sleeve 1 extends horizontally and is close to the guide plate 1, two connecting sleeves 1 are provided and are arranged in parallel, one end of the connecting column 1 is fixedly connected to the wall of the guide plate 1, and the other end of the connecting column 1 extends into the connecting sleeve 1, and a spring 3 is provided on the connecting sleeve 1 and the connecting column 1, one end of the spring 3 is connected to the wall of the support plate, and the other end of the spring 3 is connected to the wall of the guide plate 1, the guide plate 2 is fixed to the end of the guide plate 1, and the guide plate 2 is arranged inclined.

[0011] As a further improvement of the present technical solution, an adjustment mechanism is provided on the material storage barrel, the adjustment mechanism includes a threaded rod, a nut, an adjustment column, and a ring. A connecting plate is vertically fixedly provided on one side of the guide plate, the threaded rod passes through the plate surface of the connecting plate, the nut is fixedly connected to the end of the threaded rod, one end of the adjustment column is sleeved on the threaded section of the threaded rod, the other end of the adjustment column extends into the material storage barrel, and the ring is sleeved on the adjustment column and contacts with the wall of the material storage barrel.

[0012] As a further improvement of the technical solution, an exhaust pipe is connected through the pressure column, and an air release valve is provided on the exhaust pipe.

[0013] As a further improvement of the technical solution, a scale is fixedly arranged horizontally on the top of the connecting plate, and the scale is parallel to the threaded rod.

[0014] As a further improvement of the technical solution, the top feed holes of the three collecting cylinders have different apertures.

[0015] Compared with the prior art, the present invention has the following progress and advantages: during the use of the present invention, the pressure column squeezes the sealing grease in the storage barrel, and when the pressure reaches a predetermined value, the pressure of the pressure column acts on the adjusting column, the top of the collecting barrel is in close contact with the bottom of the storage barrel, and the discharge hole at the bottom of the storage barrel is connected with the feed hole at the top of the collecting barrel, and the pressure column continues to press the sealing grease downward, thereby discharging the sealing grease into the collecting barrel through the discharge hole at the bottom of the storage barrel and the feed hole at the top of the collecting barrel;

[0016] The distance between the guide plate 1 and the support plate can be adjusted by the threaded rod, thereby adjusting the contact distance between the guide plate 1 and the guide rod, thereby simulating the guide plate 1 and the guide rod under different pressures, thereby simulating the pumpability of the sealing grease under different pressures. After the sealing grease is discharged into the collecting tube, the collecting tube moves downward, and the downward movement of the collecting tube can be judged by the distance sensor, thereby judging the discharge amount of the sealing grease;

[0017] The communication mode between the storage cylinder and the collection cylinder can avoid the generation of a large amount of residue when the sealing grease is discharged, which affects the accuracy of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the conversion test mechanism of the present invention.

[0021] Figure 3 It is a schematic diagram of the installation of the collecting tube of the present invention.

[0022] Figure 4 It is a schematic diagram of the cooperation between the conversion test mechanism and the trigger assembly of the present invention.

[0023] Figure 5It is a schematic diagram of the cooperation between the blocking component and the material storage barrel of the present invention.

[0024] Figure 6 It is a schematic diagram of the trigger component of the present invention.

[0025] Figure 7 It is a schematic diagram of the coordination between the adjustment mechanism of the present invention and the guide plate 1 and the guide plate 2.

[0026] Figure 8 This is a schematic diagram of the installation of the adjustment column of the present invention.

[0027] The figure shows:

[0028] 10. Base; 110. Support plate; 120. Material storage barrel; 130. Pressure column; 131. Exhaust pipe; 140. Lifting mechanism;

[0029] 20. Conversion test mechanism; 210. Support frame; 220. Turntable; 230. Loading plate; 240. Motor; 250. Collection test assembly; 251. Collection cylinder; 252. Guide column; 253. Feed hole; 254. Guide rod; 255. Distance sensor; 260. Trigger assembly; 261. Connecting sleeve 1; 262. Connecting column 1; 263. Guide plate 1; 264. Guide plate 2; 265. Connecting plate; 270. Blocking assembly; 271. Fixing plate; 272. Connecting sleeve 2; 273. Connecting column 2; 274. Blocking block;

[0030] 30. Adjustment mechanism; 310. Threaded rod; 320. Nut; 330. Adjustment column; 340. Ring; 350. Scale. DETAILED DESCRIPTION

[0031] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0032] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on the present invention. In order 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 actual products. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0033] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inside", "outside", etc. appear to indicate the orientation or position relationship, it is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0034] In the description of the present invention, unless otherwise clearly specified and limited, if the term "connection" or the like appears to indicate the connection relationship between components, the term should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two components or the interaction relationship between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] like Figure 1-Figure 8 As shown, a sealing grease pumpability testing device for a shield machine comprises:

[0036] Base 10, support plate 110, material storage barrel 120, pressure column 130, lifting mechanism 140, conversion test mechanism 20, support plate 110 is fixed on base 10, material storage barrel 120 is arranged on the top of support plate 110, material storage barrel 120 is a cylinder structure with top opening and bottom closing, material storage barrel 120 has a discharge hole at the bottom, lifting mechanism 140 is arranged on the top of support plate 110, pressure column 130 is arranged on lifting mechanism 140, pressure column 130 matches with the material storage barrel 120 and is located directly above the material storage barrel 120. The conversion test mechanism 20 is arranged on the base 10. The material storage barrel 120 is provided with a sealing component 270 for sealing the discharge hole at the bottom of the material storage barrel 120. The sealing grease is placed in the material storage barrel 120. The lifting mechanism 140 drives the pressure column 130 to move downward, so that the sealing grease in the material storage barrel 120 is pressed into the conversion test mechanism 20, so as to perform a sealing grease pumpability test.

[0037] More specifically, the conversion test mechanism 20 includes a support frame 210, a turntable 220, a carrying plate 230, a motor 240, and a collection test assembly 250. The support frame 210 is arranged on the base 10, the motor 240 is installed on the support frame 210, the output shaft of the motor 240 is vertically upward, the turntable 220 is coaxially fixed on the output shaft end of the motor 240, the carrying plate 230 is connected to the edge of the turntable 220, three carrying plates 230 are arranged evenly spaced, and the collection test assembly 250 is arranged on the carrying plate 230.

[0038] More specifically, three collecting test assemblies 250 are provided and are respectively provided on three carrying plates 230. The collecting test assemblies 250 include a collecting barrel 251, a guide column 252, a guide rod 254, and a distance sensor 255. The collecting barrel 251 is located above the carrying plate 230. The collecting barrel 251 is a barrel structure with both ends closed. A feeding hole 253 is provided at the top of the collecting barrel 251. The top of the guide column 252 is fixedly connected to the bottom of the collecting barrel 251. The bottom of the guide column 252 is fixedly connected to the bottom of the collecting barrel 251. The guide column 252 passes through the surface of the carrier plate 230 and is provided with a baffle. Two guide columns 252 are provided and are arranged in parallel. A spring 1 is sleeved on the guide column 252. One end of the spring 1 contacts the bottom of the collecting tube 251, and the other end of the spring 1 contacts the surface of the carrier plate 230. The distance sensor 255 is arranged on the carrier plate 230 and is directly below the collecting tube 251. The guide rod 254 is horizontally fixedly connected to the wall of the collecting tube 251, and the guide rod 254 is close to the bottom of the collecting tube 251.

[0039] like Figure 4-Figure 5 As shown, the blocking assembly 270 includes a fixed plate 271, a second connecting sleeve 272, a second connecting column 273, and a blocking block 274. The fixed plate 271 is located on one side of the storage barrel 120, and the fixed plate 271 is fixedly connected to the wall of the storage barrel 120. One end of the second connecting sleeve 272 is fixedly connected to the plate surface of the fixed plate 271, and the other end of the second connecting sleeve 272 extends horizontally. Two connecting sleeves 272 are provided and arranged in parallel. The blocking block 274 is located at the storage barrel 120. At the bottom, one end of the second connecting column 273 is fixedly connected to the end of the blocking block 274, and the other end of the second connecting column 273 extends horizontally and extends into the second connecting sleeve 272. The second connecting sleeve 272 and the second connecting column 273 are provided with a second spring, one end of the second spring is fixedly connected to the plate surface of the fixed plate 271, and the other end of the second spring is connected to the end of the blocking block 274. The top plane of the blocking block 274 contacts the bottom of the storage barrel 120, and the bottom of the blocking block 274 is arranged inclined.

[0040] like Figure 5-Figure 8As shown, a trigger assembly 260 is provided on one side of the support plate 110, and the trigger assembly 260 includes a connecting sleeve 261, a connecting column 262, a guide plate 263, and a guide plate 264. The guide plate 263 is located below the storage barrel 120. One end of the connecting sleeve 261 is fixedly connected to the plate surface of the support plate 110, and the other end of the connecting sleeve 261 extends horizontally and is close to the guide plate 263. Two connecting sleeves 261 are provided and are arranged in parallel. One end of the connecting column 262 is fixedly connected to the wall of the guide plate 263, and the other end of the connecting column 262 extends into the connecting sleeve 261. A spring 3 is sleeved on the connecting sleeve 261 and the connecting column 262. One end of the spring 3 is connected to the wall of the support plate 110, and the other end of the spring 3 is connected to the wall of the guide plate 263. The guide plate 264 is fixed to the end of the guide plate 263, and the guide plate 264 is arranged obliquely.

[0041] More specifically, an adjusting mechanism 30 is provided on the material storage barrel 120, and the adjusting mechanism 30 includes a threaded rod 310, a nut 320, an adjusting column 330, and a ring 340. A connecting plate 265 is vertically fixedly provided on one side of the guide plate 263. The threaded rod 310 passes through the plate surface of the connecting plate 265, and the nut 320 is fixedly connected to the end of the threaded rod 310. One end of the adjusting column 330 is sleeved on the threaded section of the threaded rod 310, and the other end of the adjusting column 330 extends into the material storage barrel 120. The ring 340 is sleeved on the adjusting column 330 and contacts the wall of the material storage barrel 120.

[0042] More specifically, an exhaust pipe 131 is passed through the pressure column 130 , and an exhaust valve is provided on the exhaust pipe 131 . When the pressure column 130 is pressed downward, the gas in the storage barrel 120 can be discharged through the exhaust pipe 131 .

[0043] More specifically, a scale 350 is horizontally fixedly disposed on the top of the connecting plate 265 , and the scale 350 is parallel to the threaded rod 310 .

[0044] More specifically, the top feed holes 253 of the three collecting barrels 251 have different apertures, thereby simulating and testing the pumpability of the sealing grease through the different apertures.

[0045] Working principle:

[0046] During the use of the present invention, the sealing grease is placed in the storage barrel 120, and the blocking block 274 blocks the discharge hole at the bottom of the storage barrel 120. Then the motor 240 drives the collecting barrel 251 to be directly below the storage barrel 120. During the process of the collecting barrel 251 moving to the bottom of the storage barrel 120, the guide rod 254 contacts the bottom of the guide plate 264, thereby driving the collecting barrel 251 to move downward. The spring 1 is in a compressed state, and then the guide rod 254 is at the bottom of the guide plate 1 263. At this time, the collecting barrel 251 moves to the storage barrel. 120, and then the lifting mechanism 140 drives the pressure column 130 to move downward, and the pressure column 130 squeezes the sealing grease in the storage barrel 120. When the pressure reaches a predetermined value, the pressure of the pressure column 130 acts on the adjusting column 330, thereby pushing the adjusting column 330 to move, and then pushes the connecting plate 265 to move in the direction close to the support plate 110, thereby pulling the guide plate 1 263 to move in the direction close to the support plate 110, and the guide plate 1 263 is separated from the guide rod 254, and the elastic force of the spring 1 pushes the collecting barrel 251 to move upward. Then, the top edge of the collecting cylinder 251 contacts the bottom slope of the blocking block 274, thereby driving the blocking block 274 to move toward the support plate 110, and the discharge hole at the bottom of the storage cylinder 120 opens. The top of the collecting cylinder 251 is in close contact with the bottom of the storage cylinder 120, and the discharge hole at the bottom of the storage cylinder 120 is connected with the feed hole 253 at the top of the collecting cylinder 251. The pressure column 130 continues to press down the sealing grease, thereby discharging the sealing grease through the discharge hole at the bottom of the storage cylinder 120 and the feed hole 253 at the top of the collecting cylinder 251. The grease is discharged into the collecting tube 251, and the distance between the guide plate 263 and the support plate 110 can be adjusted by the threaded rod 310, thereby adjusting the contact distance between the guide plate 263 and the guide rod 254, thereby simulating the guide plate 263 and the guide rod 254 under different pressures, thereby simulating the pumpability of the sealing grease under different pressures. After the sealing grease is discharged into the collecting tube 251, the collecting tube 251 moves downward, and the downward movement of the collecting tube 251 can be determined by the distance sensor 255, thereby determining the discharge amount of the sealing grease.

[0047] It should be noted that the above specific implementations are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art should understand that various modifications, equivalent substitutions, changes, etc. can be made to the present invention. However, as long as these changes do not deviate from the spirit of the present invention, they should be within the scope of protection of the present invention. In addition, some terms used in the specification and claims of this application are not restrictive, but are only for the convenience of description.

Claims

1. A sealing grease pumpability testing device for a shield machine, characterized in that: It includes: A base, a support plate, a material storage barrel, a pressure column, a lifting mechanism, and a conversion test mechanism. The support plate is fixed on the base, the material storage barrel is arranged on the top of the support plate, the material storage barrel is a cylindrical structure with an open top and a closed bottom, a discharge hole is opened at the bottom of the material storage barrel, the lifting mechanism is arranged on the top of the support plate, the pressure column is arranged on the lifting mechanism, the pressure column matches the material storage barrel and is located directly above the material storage barrel, the conversion test mechanism is arranged on the base, and a blocking component for blocking the discharge hole at the bottom of the material storage barrel is arranged on the material storage barrel; The conversion test mechanism includes a support frame, a turntable, a bearing plate, a motor, and a collection test assembly. The support frame is arranged on a base, and the motor is installed on the support frame. The output shaft of the motor is vertically upward, and the turntable is coaxially fixedly sleeved on the output shaft end of the motor. The bearing plate is connected to the edge of the turntable. Three bearing plates are provided and are evenly spaced. The collection test assembly is provided on the bearing plate. Three collection test assemblies are provided and are respectively provided on three bearing plates. The collection test assembly includes a collection barrel, a guide column, a guide rod, and a distance sensor. The collection barrel is located above the bearing plate. The collection barrel is a cylindrical structure with closed ends. A feeding hole is provided at the top of the collection barrel. The top of the guide column is fixedly connected to the bottom of the collection barrel. The bottom of the guide column passes through the plate surface of the bearing plate and is provided with a baffle. Two guide columns are provided and are arranged in parallel. A spring 1 is sleeved on the guide column. One end of the spring 1 contacts the bottom of the collection barrel, and the other end of the spring 1 contacts the plate surface of the bearing plate. The distance sensor is provided on the bearing plate and is directly below the collection barrel. The guide rod is horizontally fixedly connected to the wall of the collection barrel, and the guide rod is close to the bottom of the collection barrel. A trigger assembly is provided on one side of the support plate, and the trigger assembly includes a connecting sleeve 1, a connecting column 1, a guide plate 1, and a guide plate 2. The guide plate 1 is located below the storage barrel, one end of the connecting sleeve 1 is fixedly connected to the plate surface of the support plate, the other end of the connecting sleeve 1 extends horizontally and is close to the guide plate 1, two connecting sleeves 1 are provided and are arranged in parallel, one end of the connecting column 1 is fixedly connected to the wall portion of the guide plate 1, and the other end of the connecting column 1 extends into the connecting sleeve 1, and a spring 3 is provided on the connecting sleeve 1 and the connecting column 1, and one end of the spring 3 is connected to the wall portion of the support plate The guide plate 2 is fixed to the end of the guide plate 1, and the guide plate 2 is arranged obliquely. An adjusting mechanism is arranged on the material storage barrel, and the adjusting mechanism includes a threaded rod, a nut, an adjusting column, and a collar. A connecting plate is vertically fixed on one side of the guide plate 1, the threaded rod passes through the plate surface of the connecting plate, and the nut is fixedly connected to the end of the threaded rod. One end of the adjusting column is sleeved on the threaded section of the threaded rod, and the other end of the adjusting column extends into the material storage barrel, and the collar is sleeved on the adjusting column and contacts with the wall of the material storage barrel.

2. A sealing grease pumpability testing device for a shield machine according to claim 1, characterized in that: The blocking assembly includes a fixed plate, a second connecting sleeve, a second connecting column, and a blocking block. The fixed plate is located on one side of the material storage barrel and is fixedly connected to the wall of the material storage barrel. One end of the second connecting sleeve is fixedly connected to the plate surface of the fixed plate, and the other end of the second connecting sleeve extends horizontally. Two connecting sleeves are provided and are arranged in parallel. The blocking block is located at the bottom of the material storage barrel. One end of the second connecting column is fixedly connected to the end of the blocking block, and the other end of the second connecting column extends horizontally and extends into the second connecting sleeve. A second spring is provided on the second connecting sleeve and the second connecting column. One end of the second spring is fixedly connected to the plate surface of the fixed plate, and the other end of the second spring is connected to the end of the blocking block. The top plane of the blocking block contacts the bottom of the material storage barrel, and the bottom of the blocking block is arranged inclined.

3. A sealing grease pumpability testing device for a shield machine according to claim 1, characterized in that: An exhaust pipe is passed through and connected to the pressure column, and an air release valve is arranged on the exhaust pipe.

4. A sealing grease pumpability testing device for a shield machine according to claim 1, characterized in that: A scale is fixedly arranged horizontally on the top of the connecting plate, and the scale is parallel to the threaded rod.

5. A sealing grease pumpability testing device for a shield machine according to claim 1, characterized in that: The top feed holes of the three collecting cylinders have different hole diameters.

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