A drilling fluid lubricant detection and sampling device

Abstract

The present invention discloses a drilling fluid lubricant detection and sampling device, comprising a support plate, a fixed rod fixedly connected to the lower end of the support plate, a plurality of sampling cups arranged up and down along the fixed rod provided on the fixed rod, a push-pull rod sliding up and down inserted through the support plate, a lifting plate fixedly connected to the upper end of the push-pull rod, a screw rod rotatably connected to the support plate, the upper end of the screw rod passing through the lifting plate and fixedly connected to a rotating handle; a thread provided on the lifting plate and mating with the screw rod thread; a pressure plate provided above the sampling cup, the two ends of the pressure plate fixedly connected to the push-pull rod, the bottom of the pressure plate fixedly connected to a plug for sealing the mouth of the sampling cup. The present invention can conveniently operate multiple sampling cups to synchronously open and close samples, collect lubricants at different depths, and improve the accuracy of detection. The device is simple and easy to operate.

Description

Technical field:

[0001] The invention relates to the technical field of lubricant detection and sampling, and in particular to a drilling fluid lubricant detection and sampling device. Background technology:

[0002] Drilling fluid lubricants are primarily used to reduce the flow resistance of drilling fluid and the friction coefficient of filter cakes, thereby reducing drill bit torque and increasing its water horsepower to prevent sticking. Liquid lubricants are commonly used in existing technologies and are high-performance lubricants synthesized from mineral oil and various raw materials.

[0003] After the lubricant for drilling fluid is produced, the finished product is stored in chemical barrels and then in warehouses. The finished product is taken out of the warehouse for shipment. During the storage of the product in the warehouse, in order to accurately control the quality, the finished product needs to be sampled and inspected. The existing sampling method is to use a small container to reach into the chemical barrel to scoop out the sample. However, after the product is stored in the chemical barrel for a certain period of time, due to the floating or sinking of the material, there will be a difference between the surface material and the material in the bottom layer. The sample taken out by this method is a randomly selected internal material and cannot accurately reflect the state of the upper or lower layer of the chemical barrel. As a result, the material sample provided cannot accurately reflect the actual situation, resulting in the sample testing failing to meet the requirements of accurate detection. Summary of the invention:

[0004] The purpose of the present invention is to solve the above technical problems and provide a drilling fluid lubricant detection sampling device. By arranging multiple sample cups up and down, samples at different positions in the chemical barrel are collected to improve the detection accuracy.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A drilling fluid lubricant detection sampling device includes a support plate, the lower end of the support plate is fixedly connected to a fixed rod, the fixed rod is provided with a plurality of sampling cups arranged up and down along the fixed rod, a push-pull rod sliding up and down is inserted into the support plate, the upper end of the push-pull rod is fixedly connected to a lifting plate, the support plate is rotatably connected to a screw rod, the upper end of the screw rod passes through the lifting plate and is fixedly connected to a rotating handle; the lifting plate is provided with a thread and cooperates with the screw rod thread through the thread; a pressure plate is provided above the sampling cup, the two ends of the pressure plate are fixedly connected to the push-pull rod, and the bottom of the pressure plate is fixedly connected to a plug for sealing the cup mouth of the sampling cup.

[0007] Furthermore, the fixing rod is fixedly connected to a mounting seat, and connecting columns are fixedly connected to both sides of the sampling cup, and the connecting columns are rotatably connected to the mounting seat. An annular plate is provided above the sampling cup, and a locking hole is provided on the connecting column. The bottom of the annular plate is fixedly connected to a pin, and the pin is inserted into the locking hole; the bottom of the pressure plate is fixedly connected to a limiting rod, and a through hole is provided on the annular plate. The lower end of the limiting rod passes through the through hole and is fixedly connected to the limiting plate. A first compression spring is sleeved on the limiting rod, and the first compression spring is located between the pressure plate and the annular plate.

[0008] Furthermore, a hinge hole is provided on the mounting seat, one end of the connecting column extends into the hinge hole, a receiving groove is provided at the end of the connecting column, a limiting boss is provided at the end of the hinge hole, and a symmetrically arranged second compression spring is provided in the receiving groove, one end of the second compression spring abuts against the end of the receiving groove on the connecting column, and the other end of the second compression spring abuts against the side of the limiting boss.

[0009] Furthermore, an inner ring hole is opened in the middle of the annular plate, the plug passes through the inner ring hole, and the aperture of the inner ring hole is smaller than the outer diameter of the sampling cup.

[0010] Furthermore, a step hole is provided in the middle of the plug, and the step hole includes a first straight hole and a second straight hole. The diameter of the second straight hole is larger than the diameter of the first straight hole. A step shaft is provided in the step hole which slides axially along the step hole. One end of the step shaft extends into the first straight hole and is sealed with the circumference of the first straight hole. A third compression spring is provided in the second straight hole. The lower end of the third compression spring abuts against the upper end of the step shaft. The upper end of the third compression spring abuts against the bottom of the pressure plate. An air vent is provided on the pressure plate at a position opposite to the step hole.

[0011] Furthermore, there are two fixed rods arranged in parallel, and the sampling cup is located between the two fixed rods; there are two push-pull rods connected below the lifting plate, and the two push-pull rods are arranged in parallel; and the push-pull rods are located inside the two fixed rods.

[0012] Furthermore, the bottom of the support plate is fixedly connected to a vertical plate, and the vertical plate is provided with two places and located on the outside of the fixed rod, and a locking mechanism is installed on one of the vertical plates, and the locking structure includes a guide rod inserted into the vertical plate, a clamping block for clamping on the edge of the chemical barrel feeding port, and a screw rotatably connected to the clamping block. A guide hole is provided on the vertical plate, and the guide rod is fixedly connected to the clamping block through the guide hole. The clamping block is located on the side of the vertical plate facing the fixed rod, and a V-shaped notch is provided on the clamping block for clamping on the vertical edge of the feed port; a threaded hole is provided on the vertical plate, and the screw passes through the vertical plate and is threadedly matched with the threaded hole on the vertical plate, and the end of the screw away from the clamping block is fixedly connected to a rotating rod for rotating the screw.

[0013] Furthermore, a guide cone is provided at the upper end of the locking hole, and a first guide chamfer is provided at the bottom of the latch.

[0014] Furthermore, a second guide chamfer is provided at the lower end of the plug.

[0015] Working principle: When in use, the sampling device is inserted into the chemical barrel from the feeding port of the chemical barrel, and the support plate is covered on the upper end of the feeding port of the chemical barrel. The screw rod is rotated by turning the handle to drive the lifting plate to move upward relative to the support plate, thereby driving the plug on the pressure plate to move upward, thereby opening the upper ends of multiple sampling cups arranged above and below. The sampling cups at different depths in the chemical barrel collect lubricants of different depths. After the lubricant enters the sampling cup, the screw rod is rotated in the opposite direction to make the pressure plate move downward, thereby driving the plug to enter the sampling cup and seal the cup mouth, thereby preventing lubricants at other positions from entering the sampling cup during the upward lifting of the sampling cup, thereby ensuring that the lubricant in the sampling cup can accurately collect lubricants of different depths; when the sampling cup is located in the chemical barrel for sampling, the first compression spring presses the annular plate above the cup mouth during the process of lifting the pressure plate to prevent the pin from disengaging from the locking hole. The pin is inserted into the locking hole to prevent the sampling cup from flipping over under the action of buoyancy, which is convenient When the bottle is lifted up and out of the bottle, the third compression spring presses the step shaft to reset it.

[0016] The present invention provides a drilling fluid lubricant detection and sampling device, which has the following beneficial effects: it can conveniently operate multiple sampling cups to synchronously open and close samples, collect lubricants at different depths, improve the accuracy of detection, and facilitate quality control of lubricants; by sealing the cup mouth of the sampling cup, it can avoid interference of materials in different areas on the sampled samples, thereby improving sampling accuracy; the device is simple and easy to operate, and can facilitate accurate collection of materials. Description of the drawings:

[0017] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings:

[0018] Figure 1 A schematic structural diagram of a drilling fluid lubricant detection and sampling device provided by the present invention;

[0019] Figure 2 for Figure 1 Schematic diagram of the local structure of part A in the middle;

[0020] Figure 3 This is a schematic diagram of the side cross-sectional structure of the mounting seat in the present invention;

[0021] Figure 4 It is a schematic diagram of the side cross-sectional structure of the locking mechanism in the present invention.

[0022] Explanation of the numbers in the figure: 1. Support plate; 11. Screw rod; 12. Rotating handle; 13. Vertical plate; 2. Fixed rod; 21. Mounting seat; 211. Hinge hole; 212. Limiting boss; 213. Second compression spring; 3. Sampling cup; 31. Connecting column; 311. Locking hole; 312. Accommodating groove; 4. Push-pull rod; 41. Lifting plate; 42. Pressing plate; 421. Air vent; 43. Plug; 431. Step hole; 432. Step shaft; 433. Third compression spring; 44. Annular plate; 45. Latch; 46. Limiting rod; 47. Limiting plate; 48. First compression spring; 5. Locking mechanism; 51. Guide rod; 52. Clamping block; 521. V-notch; 53. Screw; 54. Rotating rod. Specific implementation method:

[0023] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0025] It should be noted that all directional indications in the embodiments of the present invention (such as up-down-left-right-front-back...) are only used to explain the relative position relationship - movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. The connection can be a direct connection or an indirect connection.

[0026] like Figures 1-4As shown, a drilling fluid lubricant detection sampling device includes a support plate 1, the lower end of the support plate 1 is fixedly connected to a fixed rod 2, the fixed rod 2 is provided with a plurality of sampling cups 3 arranged up and down along the fixed rod 2, a push-pull rod 4 sliding up and down is inserted into the support plate 1, the upper end of the push-pull rod 4 is fixedly connected to a lifting plate 41, the support plate 1 is rotatably connected to a screw rod 11, the upper end of the screw rod 11 passes through the lifting plate 41 and is fixedly connected to a rotating handle 12; the lifting plate 41 is provided with a thread and is threadedly matched with the screw rod 11; a pressing plate 42 is provided above the sampling cup 3, the two ends of the pressing plate 42 are fixedly connected to the push-pull rod 4, and the bottom of the pressing plate 42 is fixedly connected to a plug 43 for sealing the cup mouth of the sampling cup 3, and the plug 43 is made of soft material.

[0027] By adopting the above technical solution, when in use, the sampling device is extended from the feeding port of the chemical barrel into the interior of the chemical barrel, and the support plate 1 covers the upper end of the feeding port of the chemical barrel. The screw rod 11 is rotated by rotating the handle 12, thereby driving the lifting plate 41 to move upward relative to the support plate 1, thereby driving the plug 43 on the pressing plate 42 to move upward, thereby opening the upper ends of the multiple sampling cups 3 arranged above and below, and the sampling cups 3 located at different depths above and below in the chemical barrel collect lubricants of different depths. After the lubricant enters the sampling cup 3, the screw rod 11 is rotated in the opposite direction to move the pressing plate 42 downward, thereby driving the plug 43 to enter the sampling cup 3 to close the cup mouth, thereby preventing lubricants at other positions from entering the sampling cup 3 during the upward lifting of the sampling cup 3, thereby ensuring that the lubricant in the sampling cup 3 can accurately collect lubricants of different depths.

[0028] Specifically, the fixing rod 2 is fixedly connected to the mounting seat 21, and connecting columns 31 are fixedly connected on both sides of the sampling cup 3. The connecting columns 31 are rotatably connected to the mounting seat 21. An annular plate 44 is provided above the sampling cup 3, and a locking hole 311 is provided on the connecting column 31. The bottom of the annular plate 44 is fixedly connected to a latch 45, and the latch 45 is inserted into the locking hole 311; the bottom of the pressure plate 42 is fixedly connected to a limiting rod 46, and a through hole is provided on the annular plate 44. The lower end of the limiting rod 46 passes through the through hole and is fixedly connected to the limiting plate 47. A first compression spring 48 is sleeved on the limiting rod 46. The first compression spring 48 is located between the pressure plate 42 and the annular plate 44. The first compression spring 48 cooperates with the limiting plate 47 to generate a displacement difference, so that the annular plate 44 will not lift when the plug 43 is lifted. When the sampling cup 3 is located in the chemical barrel for sampling, during the process of lifting the pressure plate 42, the first compression spring 48 presses the annular plate 44 above the cup mouth to prevent the latch 45 from disengaging from the locking hole 311. The latch 45 is inserted into the locking hole 311 to prevent the sampling cup 3 from flipping over under the action of buoyancy, thereby facilitating sampling. When the sampling is completed, the sampling device is taken out of the chemical barrel, and the pressure plate 42 is lifted upward by rotating the screw rod 11, so that the plug 43 is lifted up and separated from the cup mouth. The pressure plate 42 continues to rise, so that the limit plate 47 lifts the annular plate 44 upward, thereby driving the latch 45 to disengage from the locking hole 311. At this time, the sampling cup 3 is unlocked, which facilitates the flipping and rotation of the sampling cup 3 to pour out the sampled material for testing, which is convenient for operation.

[0029] Specifically, the mounting base 21 is provided with a hinge hole 211, into which one end of the connecting post 31 extends. A receiving slot 312 is provided at the end of the connecting post 31, and a limiting boss 212 is provided at the end of the hinge hole 211. A symmetrically arranged second compression spring 213 is provided in the receiving slot 312. One end of the second compression spring 213 abuts the end of the receiving slot 312 on the connecting post 31, and the other end abuts the side of the limiting boss 212. When the sampling cup 3 is turned over and rotated, the second compression spring 213 generates resistance in the opposite direction of rotation, preventing the sampling cup 3 from being accidentally touched and causing the material to be poured out.

[0030] Specifically, an inner ring hole is formed in the middle of the annular plate 44, through which the plug 43 passes. The diameter of the inner ring hole is smaller than the outer diameter of the sampling cup 3. This allows the plug 43 to pass through the annular plate 44, while the annular plate 44 can be positioned on the cup mouth of the sampling cup 3.

[0031] Specifically, a stepped hole 431 is provided in the middle of the plug 43, and the stepped hole 431 includes a first straight hole and a second straight hole. The diameter of the second straight hole is larger than the diameter of the first straight hole. A stepped shaft 432 is provided in the stepped hole 431 and slides axially along the stepped hole 431. One end of the stepped shaft 432 extends into the first straight hole and is sealed with the circumference of the first straight hole. A third compression spring 433 is provided in the second straight hole. The lower end of the third compression spring 433 abuts against the upper end of the stepped shaft 432, and the upper end of the third compression spring 433 abuts against the bottom of the pressure plate 42. A ventilation hole 421 is provided on the pressure plate 42 at a position opposite to the stepped hole 431. When the plug 43 is pressed into the sampling cup 3, a closed space is formed in the sampling cup 3, and the pressure in the sampling cup 3 increases. Forcing the plug 43 into the sampling cup 3 may easily damage the device. By providing a movable step shaft 432, when the pressure in the sampling cup 3 increases, the step shaft 432 contracts into the step hole 431, causing the third compression spring 433 to be compressed, thereby expanding the generated internal space to a certain extent, making it easier for the plug 43 to be pressed into the cup. When the plug 43 is lifted up and separated from the sampling cup 3, the third compression spring 433 squeezes the step shaft 432 to reset it.

[0032] Specifically, the fixing rods 2 are arranged in parallel with two pieces, and the sampling cup 3 is located between the two fixing rods 2. Two push-pull rods 4 are provided below the lifting plate 41, and the two push-pull rods 4 are arranged in parallel and located inside the two fixing rods 2. The parallel arrangement can maintain a more stable operation of opening and closing the plug 43.

[0033] Specifically, the bottom of the support plate 1 is fixedly connected to a vertical plate 13, and the vertical plate 13 is provided with two places and is located on the outside of the fixed rod 2, and a locking mechanism 5 is installed on one of the vertical plates 13. The locking structure includes a guide rod 51 inserted into the vertical plate 13, a clamping block 52 for clamping on the edge of the chemical barrel feeding port, and a screw 53 rotatably connected to the clamping block 52. A guide hole is provided on the vertical plate 13, and the guide rod 51 is fixedly connected to the clamping block 52 through the guide hole. The clamping block 52 is located on the side of the vertical plate 13 facing the fixed rod 2, and a V-shaped notch 521 is provided on the clamping block 52 for clamping on the vertical edge of the feed port; a threaded hole is provided on the vertical plate 13, and the screw 53 passes through the vertical plate 13 and is threadedly matched with the threaded hole on the vertical plate 13. The end of the screw 53 away from the clamping block 52 is fixedly connected to a rotating rod 54 for rotating the screw 53. When in use, the vertical plate 13 is placed outside the feed port of the chemical barrel for storing lubricant. By rotating the screw 53, the clamping block 52 is clamped on the vertical edge of the feed port, so that the sampling device can be fixed on the chemical barrel, so that the sampling device remains stable and the sampling operation is convenient; the circular vertical edge of the feed port is clamped by the V-shaped notch 521 on the clamping block 52, and the clamping is more stable.

[0034] Specifically, in order to make it easier for the latch pin 45 to be inserted into the locking hole 311 , a guide cone is provided at the upper end of the locking hole 311 , and a first guide chamfer is provided at the bottom of the latch pin 45 .

[0035] Specifically, in order to make it easier for the plug 43 to be pressed into the sampling cup 3 , a second guide chamfer is provided at the lower end of the plug 43 .

[0036] The parts not involved in this technical solution are the same as the existing technology or can be implemented by using the existing technology.

[0037] The basic principles, main features, and characteristics of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drilling fluid lubricant detection and sampling device, characterized in that: The invention comprises a support plate (1), wherein the lower end of the support plate (1) is fixedly connected to a fixed rod (2), and the fixed rod (2) is provided with a plurality of sampling cups (3) arranged up and down along the fixed rod (2); a push-pull rod (4) sliding up and down is inserted through the support plate (1), and the upper end of the push-pull rod (4) is fixedly connected to a lifting plate (41); a screw rod (11) is rotatably connected to the support plate (1), and the upper end of the screw rod (11) passes through the lifting plate (41) and is fixedly connected to a rotating handle (12); the lifting plate (41) is provided with a thread and is threadedly matched with the screw rod (11); a pressing plate (42) is provided above the sampling cup (3), and both ends of the pressing plate (42) are fixedly connected to the push-pull rod (4), and the bottom of the pressing plate (42) is fixedly connected to a plug (43) for sealing the cup mouth of the sampling cup (3); The fixing rod (2) is fixedly connected to a mounting seat (21), and connecting columns (31) are fixedly connected to both sides of the sampling cup (3), and the connecting columns (31) are rotatably connected to the mounting seat (21). An annular plate (44) is provided above the sampling cup (3), and a locking hole (311) is provided on the connecting column (31). A latch (45) is fixedly connected to the bottom of the annular plate (44), and the latch (45) is inserted into the locking hole (311); the bottom of the pressure plate (42) is fixedly connected to a limiting rod (46), and a through hole is provided on the annular plate (44). The lower end of the limiting rod (46) passes through the through hole and is fixedly connected to the limiting plate (47). A first compression spring (48) is sleeved on the limiting rod (46), and the first compression spring (48) is located between the pressure plate (42) and the annular plate (44).

2. A drilling fluid lubricant detection and sampling device according to claim 1, characterized in that: A hinge hole (211) is provided on the mounting seat (21), one end of the connecting column (31) extends into the hinge hole (211), an accommodating groove (312) is provided at the end of the connecting column (31), a limiting boss (212) is provided at the end of the hinge hole (211), a symmetrically arranged second compression spring (213) is provided in the accommodating groove (312), one end of the second compression spring (213) abuts against the end of the accommodating groove (312) on the connecting column (31), and the other end of the second compression spring (213) abuts against the side of the limiting boss (212).

3. The drilling fluid lubricant detection and sampling device according to claim 1, characterized in that: An inner ring hole is formed in the middle of the annular plate (44), and the plug (43) passes through the inner ring hole. The diameter of the inner ring hole is smaller than the outer diameter of the sampling cup (3).

4. The drilling fluid lubricant detection and sampling device according to claim 1, characterized in that: A stepped hole (431) is provided in the middle of the plug (43), and the stepped hole (431) includes a first straight hole and a second straight hole. The diameter of the second straight hole is larger than the diameter of the first straight hole. A stepped shaft (432) is provided in the stepped hole (431) and slides axially along the stepped hole (431). One end of the stepped shaft (432) extends into the first straight hole and is sealed with the circumference of the first straight hole. A third compression spring (433) is provided in the second straight hole. The lower end of the third compression spring (433) abuts against the upper end of the stepped shaft (432). The upper end of the third compression spring (433) abuts against the bottom of the pressure plate (42). An air vent (421) is provided on the pressure plate (42) at a position relative to the stepped hole (431).

5. The drilling fluid lubricant detection and sampling device according to claim 1, characterized in that: Two fixed rods (2) are arranged in parallel, and the sampling cup (3) is located between the two fixed rods (2); two push-pull rods (4) are connected below the lifting plate (41), and the two push-pull rods (4) are arranged in parallel; and the push-pull rods (4) are located inside the two fixed rods (2).

6. The drilling fluid lubricant detection and sampling device according to claim 1, characterized in that: The bottom of the support plate (1) is fixedly connected to a vertical plate (13), and the vertical plate (13) is provided at two locations and is located outside the fixed rod (2). A locking mechanism (5) is installed on one of the vertical plates (13), and the locking mechanism includes a guide rod (51) inserted into the vertical plate (13), a clamping block (52) for clamping on the edge of the chemical barrel feeding port, and a screw (53) rotatably connected to the clamping block (52). A guide hole is opened on the vertical plate (13), and the guide rod (51) is fixed through the guide hole. The clamping block (52) is fixedly connected to the clamping block (52), and the clamping block (52) is located on the side of the vertical plate (13) facing the fixed rod (2). The clamping block (52) is provided with a V-shaped notch (521) for clamping on the vertical edge of the feed port; the vertical plate (13) is provided with a threaded hole, and the screw (53) passes through the vertical plate (13) and is threadedly matched with the threaded hole on the vertical plate (13); the end of the screw (53) away from the clamping block (52) is fixedly connected to a rotating rod (54) for rotating the screw (53).

7. The drilling fluid lubricant detection and sampling device according to claim 2, characterized in that: The upper end of the locking hole (311) is provided with a guide conical surface, the bottom of the latch (45) is provided with a first guide chamfer; the lower end of the plug (43) is provided with a second guide chamfer.

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