Equipment for measuring J value of oil casing coupling of petroleum

Abstract

The utility model relates to the technical field of measuring equipment, in particular to petroleum oil casing coupling J value measuring equipment which comprises a mounting plate, a measuring equipment body is mounted on the mounting plate, an electric push rod is mounted on the mounting plate, the output end of the electric push rod is fixedly connected with a moving plate, and the moving plate can be clamped at the bottom of a coupling thread. The mounting plate is fixedly connected with a telescopic pipe, one end of the telescopic pipe is fixedly connected with a clamping plate, the clamping plate sleeves an output section of an electric push rod, the output section of the electric push rod is fixedly connected with a limiting ring, the output section of the electric push rod is sleeved with a first elastic piece, the first elastic piece is located between the limiting ring and the clamping plate, and the clamping plate is provided with a distance sensor; the clamping plate is provided with a measuring hole for distance measurement of the distance sensor, the bottom of the mounting plate is provided with a lifting assembly, the bottom of the lifting assembly is provided with a moving assembly, the bottom of the moving assembly is provided with a positioning assembly, and the effect of improving the J value measuring speed of the oil casing coupling is achieved.

Description

Technical Field

[0001] This application relates to the technical field of measuring devices, and particularly to a measuring device for the J value of oil casing couplings in oil. Background Art

[0002] The J value of the oil casing coupling in oil refers to the theoretical length from the pipe end to the center of the coupling after screwing, or the distance from the pipe end to the center plane of the coupling in the machine-tightened state. The J value reflects the meshing length of the internal and external threads and the interference amount during tightening. A reasonable J value can ensure a stable and reliable connection between the casing and the coupling. The API 5CT standard and 5B standard stipulate the J value tolerance. Especially in commodity inspection, whether the J value is qualified is one of the important parameters for judging whether the oil casing is qualified.

[0003] The existing J value measurement method usually measures the length from the pipe body end face to one end of the coupling first using a steel tape or a depth vernier caliper, and then measures the length of the coupling using a vernier caliper. After calculation, the J value is obtained.

[0004] The above-mentioned existing technical solutions have the following defects: The measurement speed is slow and the measurement steps are complex when manually measured by staff. Utility Model Content

[0005] This application provides a measuring device for the J value of oil casing couplings in oil in order to improve the measurement speed of the J value of oil casing couplings.

[0006] The above technical object of this application is achieved through the following technical solutions:

[0007] A measuring device for the J value of oil casing couplings in oil includes a mounting plate. A measuring device body is installed on the mounting plate. An electric push rod is installed on the mounting plate. The output end of the electric push rod is fixedly connected with a moving plate that matches the internal thread of the coupling. The moving plate can be stuck at the bottom of the coupling thread. A telescopic tube is fixedly connected to the mounting plate. The telescopic tube is sleeved on the peripheral wall of the output section of the electric push rod and is coaxial with the electric push rod. One end of the telescopic tube is fixedly connected with a clamping plate. The clamping plate is sleeved on the output section of the electric push rod. A limiting ring is fixedly connected to the output section of the electric push rod. A first elastic member is sleeved on the output section of the electric push rod. The first elastic member is located between the limiting ring and the clamping plate. A distance sensor is installed on the clamping plate. A measuring hole for the distance sensor to measure the distance is opened on the clamping plate. A lifting assembly is arranged at the bottom of the mounting plate. A moving assembly is arranged at the bottom of the lifting assembly. A positioning assembly is arranged at the bottom of the moving assembly.

[0008] By adopting the above technical solution, it is convenient for the staff to move the measuring device to the collar to be measured and fix it, use the lifting assembly to lift the measuring device, measure the distance from the end face of the collar to the bottom of the thread through the distance sensor, and calculate the J value of the collar by combining the length of the collar, which can simplify the steps of measuring the J value of the collar, facilitate the staff to measure the J value of the collar, and improve the measuring speed of the J value of the collar.

[0009] Optionally, the lifting assembly includes a first lifting section connected to the bottom of the mounting plate. A second lifting section is sleeved on the outer wall of the first lifting section, and a third lifting section is sleeved on the outer wall of the second lifting section. A second connecting plate is fixedly connected to the second lifting section. A driving assembly is arranged on the second connecting plate. A first connecting plate and a third connecting plate are respectively fixedly connected to the first lifting section and the third lifting section. The driving assembly is connected to the first connecting plate and the third connecting plate.

[0010] By adopting the above technical solution, it is convenient for the staff to lift the measuring device to a suitable height for measurement. After the measurement is completed, control the driving assembly to drive the first connecting plate and the third connecting plate to move towards the second connecting plate, which is convenient for the staff to retract the lifting assembly. Through the sequential sleeving of the first lifting section, the second lifting section and the third lifting section, it is convenient to smoothly lift the measuring device to a convenient height for measurement, which is convenient for the staff to measure the J value of the collar and improve the measuring speed of the J value.

[0011] Optionally, positioning grooves are formed by machining on the side walls of the first lifting section, the second lifting section and the third lifting section.

[0012] By adopting the above technical solution, it can ensure the stable telescoping of the lifting assembly, ensure smooth lifting to a convenient height for measurement, which is convenient for the staff to measure the J value of the collar and improve the measuring speed of the J value.

[0013] Optionally, the driving assembly includes a mounting block fixedly connected to the second connecting plate. A worm is rotatably connected inside the mounting block. One end of the worm is fixedly connected with a handwheel. A worm gear is rotatably arranged inside the mounting block. At least two worm gears are provided and are all meshed with the worm. Screws are penetrated and threadedly connected to the worm gears. The two screws are respectively fixedly connected to the first connecting plate and the third connecting plate.

[0014] By adopting the above technical solution, it is convenient for the staff to lift the measuring device to a suitable height for measurement. Since the meshing pair between the worm gear and the worm has the property of preventing reverse rotation, it can ensure that the mounting plate can maintain a stable height during measurement. After the measurement is completed, rotate the handwheel to make the worm rotate, drive the first connecting plate and the third connecting plate to move towards the second connecting plate, which is convenient for the staff to retract the lifting assembly, is convenient to lift the measuring device to a convenient height for measurement, is convenient for the staff to measure the J value of the collar, and improves the measuring speed of the J value.

[0015] Optionally, a limiting sleeve is sleeved on the screw rod, and one end of the limiting sleeve is fixedly connected to the mounting block.

[0016] By adopting the above technical solution, it is possible to ensure that the screw rod extends out of the mounting block smoothly, and increase the smoothness of the driving assembly driving the lifting assembly to expand and contract.

[0017] Optionally, the moving assembly includes a bottom plate fixedly connected to the bottom of the third connecting plate. Universal wheels are installed at the bottom of the bottom plate, and at least three universal wheels are provided.

[0018] By adopting the above technical solution, it is convenient for the staff to move the measuring device, convenient for the staff to measure the J value of the coupling, and improve the measuring speed of the J value.

[0019] Optionally, the positioning assembly includes a fixed cylinder fixedly connected to the bottom of the bottom plate. A support leg is inserted into the fixed cylinder. A first connecting rod is passed through the fixed cylinder. A first support rod is fixedly connected to the first connecting rod. A second connecting rod is passed through the support leg. A foot pedal is integrally formed on the second connecting rod. A second elastic member is connected between the first connecting rod and the second connecting rod.

[0020] By adopting the above technical solution, the stability of the measuring device when measuring the J value of the coupling is ensured. After the measurement is completed, the foot pedal is lifted upward to retract the support leg into the fixed cylinder, which is convenient for the staff to move the measuring device.

[0021] Optionally, an unlocking rod is fixedly connected to the first support rod.

[0022] By adopting the above technical solution, it is convenient for the staff to retract the support leg into the fixed cylinder, which is convenient for the staff to move the measuring device.

[0023] In summary, the present application has the following technical effects:

[0024] 1. By providing the measuring device body, the moving plate, the clamping plate and the distance sensor, measuring the distance from the end face of the coupling to the bottom of the thread, and calculating the J value of the coupling in combination with the length of the coupling, it is possible to simplify the steps of measuring the J value of the coupling, facilitate the staff to measure the J value of the coupling, and improve the measuring speed of the J value of the coupling;

[0025] 2. By providing the lifting assembly and the driving assembly, it is convenient to lift the measuring device smoothly to a height convenient for measurement. The meshing of the worm gear and the worm can ensure that the mounting plate can maintain a stable height during measurement, facilitate the staff to measure the J value of the coupling, and improve the measuring speed of the J value;

[0026] 3. By providing the positioning assembly, the stability of the measuring device when measuring the J value of the coupling is ensured. After the measurement is completed, the foot pedal is lifted upward to retract the support leg into the fixed cylinder, which is convenient for the staff to move the measuring device. Description of the Drawings

[0027] Figure 1 is the external structure diagram of the present application;

[0028] Figure 2 is the structure diagram of another angle of the present application;

[0029] Figure 3 is the prominent structure diagram of the lifting component and the driving component of the present application;

[0030] Figure 4 is the prominent structure diagram of the positioning component of the present application.

[0031] Description of reference numerals: 1. mounting plate; 2. measuring device body; 3. electric push rod; 31. moving plate; 32. limiting ring; 33. first elastic member; 4. telescopic tube; 41. clamping plate; 42. measuring hole; 5. distance sensor; 6. lifting component; 61. first lifting section; 611. first connecting plate; 62. second lifting section; 621. second connecting plate; 63. third lifting section; 631. third connecting plate; 64. positioning groove; 7. driving component; 71. mounting block; 72. worm; 73. hand wheel; 74. worm gear; 75. screw rod; 76. limiting sleeve; 8. moving component; 81. bottom plate; 82. universal wheel; 9. positioning component; 91. fixed cylinder; 92. support leg; 93. first connecting rod; 94. first support rod; 95. second connecting rod; 96. second support; 97. foot pedal; 98. second elastic member; 99. unlocking rod. Detailed implementation manners

[0032] The present application will be further described in detail below with reference to the accompanying drawings.

[0033] An embodiment of the present application discloses an oil casing coupling J-value measuring device for petroleum. Referring to Figure 1 and Figure 2 , the measuring device includes a mounting plate 1, on which a measuring device body 2 is mounted. An electric push rod 3 is mounted on the mounting plate 1. The output end of the electric push rod 3 is fixedly connected with a moving plate 31 through bolts. The outer diameter of the moving plate 31 matches the inner thread of the coupling and can be stuck at the bottom of the coupling thread. A telescopic tube 4 is fixedly connected to the mounting plate 1 through bolts. The telescopic tube 4 is sleeved on the peripheral wall of the output section of the electric push rod 3 and is coaxial with the electric push rod 3. One end of the telescopic tube 4 close to the moving plate 31 is fixedly connected with a clamping plate 41 having the same thickness as the moving plate 31. The clamping plate 41 is sleeved and slides on the output section of the electric push rod 3, and the area of the clamping plate 41 is larger than the area of the end face of the coupling.

[0034] A limiting ring 32 is welded to the end of the output section of the electric push rod 3 away from the moving plate 31. A first elastic member 33 is sleeved on the output section of the electric push rod 3. In this embodiment, the first elastic member 33 is a spring. The two ends of the first elastic member 33 are respectively welded to the opposite sides of the limiting ring 32 and the clamping plate 41. A distance sensor 5 is installed on the surface of the side of the clamping plate 41 facing away from the moving plate 31. The distance sensor 5 is electrically connected to the measuring device body 2. A measuring hole 42 for the distance sensor 5 to measure is provided at the position where the distance sensor 5 is installed on the clamping plate 41. A lifting assembly 6 is arranged at the bottom of the mounting plate 1. A moving assembly 8 is arranged at the bottom of the lifting assembly 6. A positioning assembly 9 is arranged at the bottom of the moving assembly 8.

[0035] When using this measuring device, push the measuring device to the collar to be measured, control the lifting assembly 6 to lift the mounting plate 1 to a suitable position, extend the electric push rod 3 and push the moving plate 31 to move along the internal thread of the collar. At the same time, the first elastic member 33 will pull the clamping plate 41 to move with the moving plate 31. After the clamping plate 41 moves to abut against the end face of the collar, it stops moving. The moving plate 31 continues to move along the internal thread of the collar under the drive of the electric push rod 3. At the same time, the first elastic member 33 is compressed. After the moving plate 31 moves to the bottom of the internal thread of the collar, it stops moving. At this time, the distance sensor 5 will measure the distance from the side of the clamping plate 41 facing away from the collar to the side of the moving plate 31 close to the clamping plate 41 and transmit it to the measuring device body 2.

[0036] After the staff inputs the length of the collar into the measuring device body 2, the measuring device body 2 calculates and displays the J value of the collar. By setting the moving assembly 8, the positioning assembly 9 and the lifting assembly 6, it is convenient for the staff to move the measuring device to the collar to be measured and fix it. Use the lifting assembly 6 to lift the measuring device. Measure the distance from the end face of the collar to the bottom of the thread through the distance sensor 5, and calculate the J value of the collar in combination with the length of the collar, which can simplify the steps of measuring the J value of the collar, facilitate the staff to measure the J value of the collar, and improve the measuring speed of the J value of the collar.

[0037] Refer to Figure 2 and Figure 3 As shown in [relevant figure numbers], the lifting assembly 6 includes a first lifting section 61 connected to the bottom of the mounting plate 1. A second lifting section 62 is sleeved on the outer wall of the first lifting section 61. A third lifting section 63 is sleeved on the outer wall of the second lifting section 62. A second connecting plate 621 is welded to the top of the second lifting section 62. A driving assembly 7 is arranged on the surface of the second connecting plate 621. First connecting plates 611 and third connecting plates 631 are respectively welded to the top of the first lifting section 61 and the bottom of the third lifting section 63. The driving assembly 7 is respectively connected to one ends of the first connecting plate 611 and the third connecting plate 631 away from the moving plate 31.

[0038] When using this measuring device, move the measuring device to the collar to be measured, and control the driving component 7 to drive the first connecting plate 611 and the third connecting plate 631 to move away from the second connecting plate 621. At this time, the lifting component 6 drives the mounting plate 1 to move upward, facilitating the staff to lift the measuring device to a suitable height for measurement. After the measurement is completed, control the driving component 7 to drive the first connecting plate 611 and the third connecting plate 631 to move towards the second connecting plate 621, facilitating the staff to retract the lifting component 6. Through the sequential sleeving of the first lifting section 61, the second lifting section 62, and the third lifting section 63, it is convenient to steadily lift the measuring device to a height convenient for measurement, facilitating the staff to measure the J value of the collar and improving the J value measurement speed.

[0039] Refer to Figure 2 and Figure 3 , positioning grooves 64 are formed by machining on the side walls of the first lifting section 61, the second lifting section 62, and the third lifting section 63. The three positioning grooves 64 have the same length direction and the facing sides are in contact with each other and are slidably connected. When using this measuring device, the positioning grooves 64 can ensure the stable telescoping of the lifting component 6, ensure a stable lift to a height convenient for measurement, facilitate the staff to measure the J value of the collar, and improve the J value measurement speed.

[0040] Refer to Figure 3 , the driving component 7 includes a mounting block 71 fixedly connected to the plate surface of the second connecting plate 621 by bolts. A worm 72 is rotatably connected inside the mounting block 71. One end of the worm 72 is connected to a handwheel 73, and the handwheel 73 is rotatably connected to the side of the mounting block 71 away from the connecting plate. Two worm wheels 74 are rotatably arranged inside the mounting block 71, and the two worm wheels 74 are respectively located on both sides of the worm 72 in the length direction. Both of the two worm wheels 74 are meshed with the worm 72. A screw rod 75 is passed through the worm wheel 74 along its axis, and the screw rod 75 is threadedly connected to the worm wheel 74. The two screw rods 75 respectively pass through the top and bottom of the mounting block 71 and are respectively connected to the ends of the first connecting plate 611 and the third connecting plate 631 away from the moving plate 31.

[0041] When using this measuring device, move the measuring device to the collar to be measured, rotate the handwheel 73 to make the worm 72 rotate, and the two worm wheels 74 meshing with the worm 72 rotate to drive the two screw rods 75 to push the first connecting plate 611 and the third connecting plate 631 to move away from the second connecting plate 621 respectively. At this time, the lifting assembly 6 drives the mounting plate 1 to move upward, facilitating the staff to lift the measuring device to a suitable height for measurement. Since the meshing pair between the worm wheel 74 and the worm 72 has the property of preventing reverse rotation, it can ensure that the mounting plate 1 can maintain a stable height during measurement. After the measurement is completed, rotate the handwheel 73 to make the worm 72 rotate, driving the first connecting plate 611 and the third connecting plate 631 to move towards the second connecting plate 621, facilitating the staff to retract the lifting assembly 6, making it easy to lift the measuring device to a convenient height for measurement, facilitating the staff to measure the J value of the collar, and improving the J value measurement speed.

[0042] Refer to Figure 2 and Figure 3 , a limit sleeve 76 is sleeved on one end of the screw rod 75 close to the mounting block 71. The limit sleeve 76 is slidably connected to the screw rod 75, and one end of the limit sleeve 76 close to the mounting block 71 is welded to the mounting block 71. When using this measuring device, the limit sleeve 76 can ensure the stable extension of the screw rod 75 from the mounting block 71, increasing the stability of the driving assembly 7 to drive the telescopic movement of the lifting assembly 6.

[0043] Refer to Figure 2 , the moving assembly 8 includes a bottom plate 81 fixedly connected to the bottom of the third connecting plate 631 by bolts. Universal wheels 82 are installed at the four corners of the bottom of the bottom plate 81. When using this measuring device, the universal wheels 82 facilitate the staff to move the measuring device, facilitating the staff to measure the J value of the collar and improving the J value measurement speed.

[0044] Refer to Figure 4 , the positioning assembly 9 includes a fixed cylinder 91 fixedly connected to the bottom of the bottom plate 81 by bolts. There are two fixed cylinders 91, which are respectively located at the two universal wheels 82 far from the moving plate 31. A support leg 92 is inserted into the fixed cylinder 91. A first connecting rod 93 passes through the top of the fixed cylinder 91. Both ends of the first connecting rod 93 extend out of the peripheral wall of the fixed cylinder 91 and are rotatably connected to a first support rod 94. The first support rod 94 is processed into a T shape, and the ends of the two first support rods 94 far from the fixed cylinder 91 are connected. A second connecting rod 95 is inserted through a section of the support leg 92 extending out of the fixed cylinder 91. Both ends of the second connecting rod 95 extend out of the peripheral wall of the support leg 92 and are rotatably connected to a second support 96. The second support 96 is in a V shape. The bottom of the first support rod 94 is rotatably connected to one end of the second support 96. A foot pedal 97 is integrally formed at the other end of the second support 96. A second elastic member 98 is connected between the first connecting rod 93 and the second connecting rod 95. In this embodiment, the second elastic member 98 is a tension spring.

[0045] When using this measuring device, after moving the measuring device to the collar to be measured, step on the foot pedal 97 to rotate the second bracket 96, and at the same time drive the first rod 94 to rotate, so that the distance between the first rod 94 and the second bracket 96 increases, drive the support feet 92 to extend out of the fixed cylinder 91 and contact the ground. At this time, a section of the first rod 94 extending out of the fixed cylinder 91 abuts against the outer wall of the fixed cylinder 91 to ensure the stability of the measuring device when measuring the J value of the collar. After the measurement is completed, lift the foot pedal 97 upward, and the elastic force of the second elastic member 98 will pull the first connecting rod 93 and the second connecting rod 95, so that the support feet 92 are retracted into the fixed cylinder 91, which is convenient for the staff to move the measuring device.

[0046] Referring to Figure 4 , a unlocking rod 99 is welded to a section of the first rod 94 away from the fixed cylinder 91. When using this measuring device, when the support feet 92 extend out of the fixed cylinder 91, the end of the unlocking rod 99 away from the first rod 94 rotates above the foot pedal 97. At this time, step on the unlocking rod 99 downward, which can drive the first rod 94 to rotate and drive the second bracket 96 to rotate at the same time, so that the support feet 92 are retracted into the fixed cylinder 91. The unlocking rod 99 facilitates the staff to retract the support feet 92 into the fixed cylinder 91, which is convenient for the staff to move the measuring device.

[0047] This specific embodiment is only an interpretation of the present application, and it is not a limitation of the present application. Those skilled in the art can make modifications to this embodiment without creative contributions according to needs after reading this specification, but as long as it is within the scope of the claims of the present application, it is protected by the patent law.

Claims

1. An oil casing coupling J value measuring device for petroleum, characterized in that: The measuring device includes a mounting plate (1), on which a measuring device body (2) is mounted. An electric push rod (3) is mounted on the mounting plate (1). The output end of the electric push rod (3) is fixedly connected with a moving plate (31) that matches the internal thread of the coupling. The moving plate (31) can be stuck at the bottom of the coupling thread. A telescopic tube (4) is fixedly connected to the mounting plate (1). The telescopic tube (4) is sleeved on the peripheral wall of the output section of the electric push rod (3) and is coaxial with the electric push rod (3). One end of the telescopic tube (4) is fixedly connected with a clamping plate (41). The clamping plate (41) is sleeved on the output section of the electric push rod (3). A limiting ring (32) is fixedly connected to the output section of the electric push rod (3). A first elastic member (33) is sleeved on the output section of the electric push rod (3). The first elastic member (33) is located between the limiting ring (32) and the clamping plate (41). A distance sensor (5) is mounted on the clamping plate (41). A measuring hole (42) for the distance sensor (5) to measure distance is formed on the clamping plate (41). A lifting assembly (6) is arranged at the bottom of the mounting plate (1). A moving assembly (8) is arranged at the bottom of the lifting assembly (6). A positioning assembly (9) is arranged at the bottom of the moving assembly (8).

2. The J-value measuring device for the oil casing coupling of petroleum according to claim 1, wherein: The lifting assembly (6) includes a first lifting section (61) connected to the bottom of the mounting plate (1). A second lifting section (62) is sleeved on the outer wall of the first lifting section (61). A third lifting section (63) is sleeved on the outer wall of the second lifting section (62). A second connecting plate (621) is fixedly connected to the second lifting section (62). A driving assembly (7) is arranged on the second connecting plate (621). A first connecting plate (611) and a third connecting plate (631) are respectively fixedly connected to the first lifting section (61) and the third lifting section (63). The driving assembly (7) is connected to the first connecting plate (611) and the third connecting plate (631).

3. The oil casing coupling J value measuring device for petroleum according to claim 2, characterized in that: Positioning grooves (64) are formed by machining on the side walls of the first lifting section (61), the second lifting section (62) and the third lifting section (63).

4. The J value measuring device for the oil casing coupling of petroleum according to claim 3, wherein: The driving assembly (7) includes a mounting block (71) fixedly connected to the second connecting plate (621). A worm (72) is rotatably connected inside the mounting block (71). A hand wheel (73) is fixedly connected to one end of the worm (72). A worm gear (74) is rotatably arranged inside the mounting block (71). At least two worm gears (74) are provided and are all meshed with the worm (72). A screw rod (75) is inserted through and threadedly connected to the worm gear (74). The two screw rods (75) are respectively fixedly connected to the first connecting plate (611) and the third connecting plate (631).

5. The oil casing coupling J value measuring device for petroleum according to claim 4, characterized in that: A limiting sleeve (76) is sleeved on the screw rod (75). One end of the limiting sleeve (76) is fixedly connected to the mounting block (71).

6. The J-value measuring device for the oil casing coupling of petroleum according to claim 1, wherein: The moving assembly (8) includes a bottom plate (81) fixedly connected to the bottom of the third connecting plate (631). Universal wheels (82) are mounted at the bottom of the bottom plate (81). At least three universal wheels (82) are provided.

7. An oil casing coupling J value measuring device for petroleum according to claim 6, characterized in that: The positioning component (9) includes a fixing cylinder (91) fixedly connected to the bottom of the bottom plate (81). A support leg (92) is inserted into the fixing cylinder (91). A first connecting rod (93) is penetrated through the fixing cylinder (91). A first support rod (94) is fixedly connected to the first connecting rod (93). A second connecting rod (95) is penetrated through the support leg (92). A foot pedal (97) is integrally formed on the second connecting rod (95). A second elastic member (98) is connected between the first connecting rod (93) and the second connecting rod (95).

8. An oil casing coupling J value measuring device for petroleum according to claim 7, characterized in that: An unlocking rod (99) is fixedly connected to the first support rod (94).

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