Press machine for detecting petroleum proppant

Abstract

The invention relates to the technical field of petroleum proppant detection, and discloses a petroleum proppant detection press machine which comprises a trolley, a controller is placed in an equipment box, a supporting table is fixedly installed on the right half portion of the upper surface of a trolley plate of the trolley, and an extrusion assembly and a protection shell are fixedly installed on the top of the supporting table. A containing assembly is arranged in the protective shell. A containing cylinder and an extrusion ring are matched to wrap the petroleum proppant, the petroleum proppant is gathered, and chippings are prevented from splashing in the detection process; the controller controls the output end of the hydraulic cylinder to contract, and the extrusion ring moves upwards and is separated from the containing barrel. The containing cylinder, the sleeve, the fixing disc, the connecting rod and the sliding disc move upwards under the elastic effect of the spring, and the sliding column slides along the vertical groove. Afterwards, the output end of the air cylinder extends to drive the sliding disc to continue to move upwards, then the containing barrel is taken down from the sleeve, the broken petroleum proppant is cleaned out, and therefore the purpose of conveniently cleaning the chippings is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of petroleum proppant detection, in particular to a press for petroleum proppant detection. Background Art

[0002] Petroleum proppants are also called petroleum fracturing proppants. During deep well exploitation of oil and gas, high closure pressure and low permeability ore deposits are treated by fracturing, which causes the oil and gas-bearing rock formations to crack, and the oil and gas are collected from the channels formed by the cracks. At this time, fluid needs to be injected into the rock base to exceed the rupture strength of the formation, so that cracks are generated in the rock formations around the wellbore, forming a channel with high-level flow capacity, in order to keep the cracks formed after fracturing open, so that oil and gas products can pass smoothly. Currently, the commonly used proppants are mainly quartz sand, bauxite ceramsite sand and resin-coated composite particles.

[0003] When selecting oil proppants, it is necessary to test the compressive strength of oil proppants in advance. In order to solve the regional restrictions on oilfield proppant testing and storage testing, and to improve the timeliness of testing, the oilfield hydraulic fracturing operation can be completed quickly and safely. Generally, the oil proppant is tested by applying pressure using a TYE-300 oil fracturing tester. Since the TYE-300 oil fracturing tester is easy to carry and move, it is more convenient to test oil proppants.

[0004] During the testing process, the oil proppant will be crushed, and a large amount of debris will be attached to the oil fracturing test machine. Moreover, after the oil proppant is crushed, the range is far and it is difficult to gather together. Therefore, the oil fracturing test machine needs to be cleaned frequently to avoid dirtying the vehicle during the carrying process. Further improvements can be made. Summary of the invention

[0005] 1. Technical issues to be resolved In view of the shortcomings of the prior art, the present invention provides a press for detecting petroleum proppants, which has the advantages of gathering the petroleum proppants to prevent splashing during the pressurization process, facilitating the cleaning of debris, and automatically spreading the petroleum proppants, thus solving the problem that it is inconvenient to clean the petroleum proppants after they are crushed.

[0006] (II) Technical solution In order to achieve the above-mentioned purpose of gathering the petroleum proppant, preventing splashing during the pressurization process, facilitating the cleaning of debris, and automatically flattening the petroleum proppant, the present invention provides the following technical solutions: a press machine for detecting petroleum proppant, comprising a trolley, an equipment box is fixedly installed on the left half of the upper surface of the trolley deck, a controller is placed inside the equipment box, a support platform is fixedly installed on the right half of the upper surface of the trolley deck, an extrusion assembly and a protective shell are fixedly installed on the top of the support platform, a containing assembly is arranged inside the protective shell, and the containing assembly is located directly below the output end of the extrusion assembly.

[0007] Preferably, the extrusion assembly includes two pillars fixedly mounted on the top of the support platform, the two pillars are distributed front and back, a top frame is fixedly mounted between the top ends of the two pillars, a hydraulic cylinder is fixedly mounted on the bottom of the top frame, the hydraulic cylinder is connected to the controller signal, a sealing ring is fixedly mounted on the bottom output end of the hydraulic cylinder, an extrusion ring is fixedly mounted on the bottom of the sealing ring, the outer diameter of the sealing ring is larger than the outer diameter of the extrusion ring, and the inner diameter of the sealing ring is equal to the inner diameter of the extrusion ring.

[0008] Preferably, the protective shell includes a support tube fixedly installed on the top of the support platform, a covering tube fixedly installed on the top of the support tube, the support tube is connected to the covering tube, a guide groove is opened in an array on the inner wall of the covering tube, a support ring is fixedly installed on the bottom of the inner wall of the covering tube, a pressure sensor is fixed in an array on the top of the support ring, and the pressure sensor is connected to the controller signal.

[0009] Preferably, the guide groove comprises an inclined groove and a vertical groove, and the bottom end of the inclined groove is connected to the top end of the vertical groove.

[0010] Preferably, the containing assembly includes a guide rod one fixed in an array between the top of the support platform and the top wall of the support tube, a sliding disk is slidably connected to the guide rod one, a spring is sleeved on the outer side of the guide rod one, and the spring is fixedly installed between the bottom of the sliding disk and the top of the support platform; a connecting rod is fixedly installed on the top of the sliding disk, the connecting rod passes through the inside of the supporting ring, a fixed disk is fixedly installed on the top of the connecting rod, and the diameter of the connecting rod is smaller than the inner diameter of the supporting ring, the diameter of the sliding disk is smaller than the inner diameter of the supporting tube, and the diameter of the fixed disk is the same as the inner diameter of the covering The inner diameters of the tubes are equal; a sleeve is rotatably connected to the top of the fixed disk, the outer diameter of the sleeve is equal to the inner diameter of the covering tube, a quadrangular prism is fixedly installed at the center of the bottom wall of the sleeve, a distance sensor is embedded in the top of the quadrangular prism, the distance sensor is connected to the controller signal, a sliding column is fixed to the outer wall array of the sleeve, and the sliding column is slidably connected in the guide groove; a containing tube is inserted in the sleeve, the outer diameter of the containing tube is equal to the inner diameter of the sleeve, a sleeve is fixedly installed at the center of the containing tube, and the sleeve is adapted to be inserted into the quadrangular prism.

[0011] Preferably, an embedded ring is fixedly installed at the bottom of the sleeve, an annular groove is opened at the top of the fixed disk, the cross section of the embedded ring is in a "convex" shape, and the embedded ring is rotatably connected in the annular groove.

[0012] Preferably, the containing assembly further comprises a cylinder, which is fixedly mounted on the top of the supporting platform and is located directly below the sliding plate.

[0013] Preferably, a ventilation pipe is connected to the support tube, a dust filter cover is sleeved on the end of the ventilation pipe, and a plurality of filter holes are penetrated through the dust filter cover.

[0014] Preferably, a brake assembly is provided on the lower surface of the right end of the trolley plate; the brake assembly includes two hanging plates fixedly installed on the bottom of the right end of the trolley plate, the two hanging plates are distributed front and back, and a rotating shaft is passed through the bottom ends of the two hanging plates and is rotatably connected, a gear is fixedly installed in the middle of the rotating shaft, a push rod is fixedly installed at the bottom of the sliding plate, the push rod passes through and is slidably connected to the support platform and the trolley plate, and a rack plate is fixedly installed on the right side of the bottom end of the push rod, and the rack plate and the gear are meshed with each other; threads are provided on the circumferential surfaces at both ends of the rotating shaft, and the spiral directions of the two sets of threads are opposite, and internal threaded tubes are threadedly connected at both ends of the rotating shaft, and a guide rod 2 is fixedly installed on the opposite sides of the two hanging plates, and a lug is fixedly installed on the top of one end of the internal threaded tube close to the hanging plate, and the lug is slidably connected to the guide rod 2.

[0015] (III) Beneficial effects Compared with the prior art, the present invention provides a press for petroleum proppant detection, which has the following beneficial effects: 1. The press machine for testing oil proppant controls the output end of the hydraulic cylinder to extend through the controller, and the extrusion ring is inserted into the inside of the holding tube, and pushes the holding tube downward, thereby driving the holding tube, the sleeve, the fixed plate, the connecting rod, and the sliding plate to move downward, and the spring is squeezed and contracted, so that the sliding column slides along the inclined groove, so that the sleeve and the holding tube rotate, and the extrusion ring fits on the top of the oil proppant, so that the oil proppant inside the holding tube is flattened; thereby achieving the purpose of automatically flattening the oil proppant and ensuring reliable and stable testing results; 2. The press machine for testing petroleum proppant moves downward with the sliding plate through the push rod, the rack plate moves downward and drives the gear to rotate, so that the rotating shaft rotates, so that the two internal threaded cylinders move away from each other and squeeze on the two wheels on the right side of the trolley to prevent the trolley from moving on the ground, thereby achieving the purpose of automatically limiting the position of the trolley during the testing process; 3. The press machine for testing petroleum proppants coats and gathers the petroleum proppants through the cooperation of a containing tube and an extrusion ring, and prevents debris from splashing during the testing process; the controller controls the output end of the hydraulic cylinder to contract, and the extrusion ring moves up and separates from the containing tube; the containing tube, sleeve, fixed plate, connecting rod and sliding plate move up under the elastic action of the spring, and the sliding column slides along the vertical groove; then, the output end of the cylinder extends, driving the sliding plate to continue to move up until the top of the containing tube is flush with the top of the coating tube, and then the containing tube is removed from the sleeve, and the broken petroleum proppant is cleaned out, thereby achieving the purpose of conveniently cleaning up debris. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional structural schematic diagram of a press machine for petroleum proppant detection proposed by the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of a press machine for petroleum proppant detection proposed by the present invention after removing the trolley, equipment box and controller; Figure 3 This is a schematic diagram of the main cross-sectional structure of a sealing ring and an extrusion ring of a press for petroleum proppant detection proposed by the present invention; Figure 4 This is a schematic diagram of the three-dimensional structure of a press machine for petroleum proppant detection proposed by the present invention in a state where the protective shell and the containing component are separated; Figure 5 This is a schematic diagram of the main cross-sectional structure of a protective housing and a containing assembly of a press for petroleum proppant detection proposed by the present invention; Figure 6 This is a schematic diagram of a three-dimensional cross-section structure of a coating tube of a press machine for petroleum proppant detection proposed by the present invention; Figure 7 This is a schematic diagram of the three-dimensional structure of a holding component of a press machine for petroleum proppant detection proposed by the present invention; Figure 8 This is a schematic diagram of the structure of the sleeve of a press machine for petroleum proppant detection proposed by the present invention when viewed from above; Fig. 9 The present invention is a schematic diagram of the three-dimensional structure of a brake assembly of a press for petroleum proppant detection.

[0017] In the figure: 100, trolley; 200, equipment box; 300, controller; 400, support platform; 500, extrusion assembly; 600, protective shell; 700, containing assembly; 800, brake assembly; 501, support column; 502, top frame; 503, hydraulic cylinder; 504, sealing ring; 505, extrusion ring; 601, support tube; 602, covering tube; 603, ventilation tube; 604, dust filter cover; 605, guide groove; 606, support ring; 607, pressure sensor; 6051, inclined groove; 6052, vertical groove; 701, guide rod 1; 702, sliding plate; 703, spring; 704, connecting rod; 705, fixed plate; 706, sleeve; 707, quadrangular prism; 708, distance sensor; 709, sliding column; 710, containing tube; 711, sleeve; 712, cylinder; 7051, annular groove; 7061, embedded ring; 801, hanging plate; 802, rotating shaft; 803, gear; 804, internal threaded cylinder; 805, second guide rod; 806, lug; 807, push rod; 808, rack plate. DETAILED DESCRIPTION

[0018] In the description of the present application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1 A press for detecting petroleum proppants includes a trolley 100. An equipment box 200 is fixedly installed on the left half of the upper surface of the trolley 100. A controller 300 is placed inside the equipment box 200. A support platform 400 is fixedly installed on the right half of the upper surface of the trolley 100. An extrusion assembly 500 and a protective shell 600 are fixedly installed on the top of the support platform 400. A containing assembly 700 is arranged inside the protective shell 600. The containing assembly 700 is located directly below the output end of the extrusion assembly 500.

[0021] See also Figure 2-Figure 3The extrusion assembly 500 includes two pillars 501 fixedly mounted on the top of the support platform 400. The two pillars 501 are distributed front and back, and a top frame 502 is fixedly mounted between the tops of the two pillars 501. A hydraulic cylinder 503 is fixedly mounted at the bottom of the top frame 502. The hydraulic cylinder 503 is connected to the controller 300 by signal, and the output end of the hydraulic cylinder 503 is controlled by the controller 300 to extend and retract.

[0022] A sealing ring 504 is fixedly installed at the bottom output end of the hydraulic cylinder 503 , and an extrusion ring 505 is fixedly installed at the bottom of the sealing ring 504 . The outer diameter of the sealing ring 504 is larger than the outer diameter of the extrusion ring 505 , and the inner diameter of the sealing ring 504 is equal to the inner diameter of the extrusion ring 505 .

[0023] See also Figure 4-Figure 6 The protective housing 600 includes a support cylinder 601 fixedly mounted on the top of the support platform 400, a cladding tube 602 fixedly mounted on the top of the support cylinder 601, the support cylinder 601 is connected to the cladding tube 602, and the outer diameter of the sealing ring 504 is equal to the inner diameter of the cladding tube 602. When the output end of the hydraulic cylinder 503 is extended, the extrusion ring 505 and the sealing ring 504 are inserted into the cladding tube 602, and the dust filter cover 604 seals the opening of the cladding tube 602.

[0024] The inner wall array of the cladding tube 602 is provided with guide grooves 605. In this embodiment, the number of guide grooves 605 is two. The guide grooves 605 include an inclined groove 6051 and a vertical groove 6052. The bottom end of the inclined groove 6051 is connected to the top end of the vertical groove 6052. Moreover, the connecting part of the inclined groove 6051 and the vertical groove 6052 is in an arc transition. A support ring 606 is fixedly installed at the bottom of the inner wall of the cladding tube 602. A pressure sensor 607 is fixed to the top array of the support ring 606. The pressure sensor 607 is connected to the controller 300 by signal. Thus, the pressure sensor 607 transmits the received pressure signal to the controller 300.

[0025] See also Figure 4-Figure 5 and Figure 7-Figure 8 The holding assembly 700 includes a guide rod 701 arrayed and fixed between the top of the support platform 400 and the top wall of the support tube 601. The guide rod 701 is slidably connected with a sliding plate 702. The guide rod 701 is guided and limited by the sliding plate 702 to prevent the guide rod 701 from rotating. A spring 703 is sleeved on the outer side of the guide rod 701. The spring 703 is fixedly installed between the bottom of the sliding plate 702 and the top of the support platform 400. The elasticity of the spring 703 makes the sliding plate 702 have a tendency to move upward. Initially, the sliding plate 702 fits on the top wall of the support tube 601.

[0026] A connecting rod 704 is fixedly installed on the top of the sliding disk 702. The connecting rod 704 passes through the inside of the support ring 606. A fixed disk 705 is fixedly installed on the top of the connecting rod 704. The diameter of the connecting rod 704 is smaller than the inner diameter of the support ring 606, so that the air inside the support tube 601 and the sheathing tube 602 can flow through the annular risk between the connecting rod 704 and the support ring 606.

[0027] The top of the fixed disk 705 is rotatably connected with a sleeve 706, and the bottom of the sleeve 706 is fixedly installed with an embedded ring 7061. The top of the fixed disk 705 is provided with an annular groove 7051, and the cross section of the embedded ring 7061 is in a "convex" shape. The embedded ring 7061 is rotatably connected in the annular groove 7051. The sleeve 706 is stably connected to the fixed disk 705, and the sleeve 706 can rotate relative to the fixed disk 705. The diameter of the sliding disk 702 is smaller than the inner diameter of the support tube 601, and the diameter of the fixed disk 705 is equal to the inner diameter of the covering tube 602. The outer diameter of the sleeve 706 is equal to the inner diameter of the covering tube 602, so as to seal the opening of the covering tube 602.

[0028] A quadrangular prism 707 is fixedly installed at the center of the bottom wall of the sleeve 706 , and a distance sensor 708 is embedded in the top of the quadrangular prism 707 . The distance sensor 708 is connected to the controller 300 for signal connection. The distance sensor 708 is used to monitor the distance between the top of the quadrangular prism 707 and the output end of the hydraulic cylinder 503 .

[0029] The outer wall array of the sleeve 706 is fixed with a sliding column 709, and the sliding column 709 is slidably connected in the guide groove 605. A holding cylinder 710 is inserted into the sleeve 706, and the holding cylinder 710 is used to hold the oil proppant. The outer diameter of the holding cylinder 710 is equal to the inner diameter of the sleeve 706. A sleeve 711 is fixedly installed at the center of the holding cylinder 710, and the sleeve 711 is adapted to be plugged with the quadrangular prism 707. The holding cylinder 710 and the sleeve 706 are rotated synchronously by the cooperation of the sleeve 711 and the quadrangular prism 707. Moreover, when the holding cylinder 710 is inserted into the sleeve 706, the top of the quadrangular prism 707 is flush with the top of the sleeve 711. Moreover, the sum of the thickness of the sealing ring 504 and the extrusion ring 505 is greater than the length of the quadrangular prism 707. When the extrusion ring 505 is inserted into the holding cylinder 710, the output end of the hydraulic cylinder 503 is prevented from hitting the distance sensor 708.

[0030] Moreover, the outer diameter of the sleeve 711 is equal to the inner diameter of the extrusion ring 505, the outer diameter of the extrusion ring 505 is equal to the inner diameter of the sleeve 706, and the length of the extrusion ring 505 is greater than the depth of the holding tube 710. When the output end of the hydraulic cylinder 503 is extended, the extrusion ring 505 is inserted into the sleeve 706, so that an annular compression chamber is formed between the holding tube 710 and the extrusion ring 505. During the downward movement of the extrusion ring 505, the holding tube 710, the sleeve 706, the fixed plate 705, the connecting rod 704 and the sliding plate 702 move downward, and the spring 703 is squeezed and contracted. In the process of the sleeve 706 moving downward, the sliding column 709 slides along the guide groove 605, so that the sleeve 706 and the holding tube 710 rotate while descending. And it is squeezed on the top of the oil proppant through the extrusion ring 505, so that the oil proppant inside the holding tube 710 is flattened.

[0031] The holding assembly 700 further includes a cylinder 712, which is fixedly mounted on the top of the support platform 400 and is located directly below the sliding plate 702. After the output end of the hydraulic cylinder 503 contracts, the extrusion ring 505 moves upward and separates from the holding cylinder 710. The sliding plate 702, the connecting rod 704, the fixed plate 705, the sleeve 706 and the holding cylinder 710 move upward under the elastic action of the spring 703. During the upward movement of the sleeve 706, the sliding column 709 slides along the guide groove 605. In order to prevent the sliding column 709 from sliding to the connection between the inclined groove 6051 and the vertical groove 6052 and getting stuck, the output end of the cylinder 712 can be moved upward to push the sliding plate 702 to apply an upward thrust, so that the sliding column 709 can smoothly slide through the connection between the inclined groove 6051 and the vertical groove 6052 and continue to slide along the inclined groove 6051.

[0032] The support tube 601 is connected with a vent pipe 603, and a dust filter cover 604 is sleeved at the end of the vent pipe 603. A plurality of filter holes are formed on the dust filter cover 604. Therefore, when the fixed plate 705 slides inside the covering tube 602, the air inside the support tube 601 and the covering tube 602 can be exchanged with the external air to balance the air pressure inside the support tube 601 and the covering tube 602. The dust filter cover 604 prevents dust from entering the support tube 601 and the covering tube 602 through the filtering effect.

[0033] See also Figure 4 and Fig. 9 A brake assembly 800 is provided on the lower surface of the right end of the trolley 100 board; the brake assembly 800 includes two hanging plates 801 fixedly installed at the bottom of the right end of the trolley 100 board, the two hanging plates 801 are distributed front and back, and a rotating shaft 802 is rotatably connected to the bottom of the two hanging plates 801, and a gear 803 is fixedly installed in the middle of the rotating shaft 802.

[0034] A push rod 807 is fixedly installed at the bottom of the sliding plate 702, and the push rod 807 penetrates and slides on the support platform 400 and the vehicle plate of the trolley 100. A rack plate 808 is fixedly installed on the right side of the bottom end of the push rod 807, and the rack plate 808 is meshed with the gear 803. Therefore, when the sliding plate 702 moves downward, the rack plate 808 drives the gear 803 to rotate, and drives the rotating shaft 802 to rotate.

[0035] Threads are arranged on the circumferential surfaces at both ends of the rotating shaft 802, and the spiral directions of the two sets of threads are opposite. The two ends of the rotating shaft 802 are threadedly connected with internal threaded barrels 804. The two sides of the two hanging plates 801 are fixedly installed with guide rods 805. The top of the end of the internal threaded barrel 804 close to the hanging plate 801 is fixedly installed with a lug 806, and the lug 806 is slidably connected to the guide rod 805. During the rotation of the rotating shaft 802, the internal threaded barrel 804 slides along the guide rod 805. In addition, the two internal threaded barrels 804 are separated from each other and closely attached to the surfaces of the two wheels on the right side of the trolley 100 to prevent the trolley 100 from moving on the ground.

[0036] When in use, the container 710 is placed inside the sleeve 706, and then the petroleum proppant is added into the container 710; The controller 300 controls the output end of the hydraulic cylinder 503 to extend, and the extrusion ring 505 is inserted into the interior of the holding cylinder 710, and pushes the holding cylinder 710 downward, thereby driving the holding cylinder 710, the sleeve 706, the fixed plate 705, the connecting rod 704, and the sliding plate 702 to move downward, and the spring 703 is squeezed and contracted, so that the sliding column 709 slides along the inclined groove 6051, so that the sleeve 706 and the holding cylinder 710 rotate, and fit on the top of the oil proppant through the extrusion ring 505, so that the oil proppant inside the holding cylinder 710 is flattened; During this process, the push rod 807 moves downward following the sliding plate 702, and the rack plate 808 moves downward and drives the gear 803 to rotate, thereby rotating the shaft 802, so that the two internal threaded cylinders 804 move away from each other and squeeze on the two wheels on the right side of the trolley 100, preventing the trolley 100 from moving on the ground; Afterwards, the squeezing ring 505 continues to push the containing tube 710 downward, and the rack plate 808 separates from the gear 803; and the sliding column 709 slides along the vertical groove 6052 until the fixed plate 705 fits on the top of the pressure sensor 607, so that the fixed plate 705 stops moving downward, and the squeezing ring 505 gradually increases the squeezing force on the oil proppant, and the pressure sensor 607 transmits the pressure signal to the controller 300; when the oil proppant is broken, the squeezing ring 505 moves downward relative to the containing tube 710, and the distance between the top of the quadrangular column 707 and the output end of the hydraulic cylinder 503 changes, and at the same time the distance sensor 708 transmits the signal to the controller 300, thereby detecting the pressure on the oil proppant when it is broken.

[0037] After the detection is completed, the controller 300 controls the output end of the hydraulic cylinder 503 to contract, and the extrusion ring 505 moves up and separates from the containing cylinder 710; the containing cylinder 710, the sleeve 706, the fixed plate 705, the connecting rod 704 and the sliding plate 702 move up under the elastic action of the spring 703, and the sliding column 709 slides along the vertical groove 6052; then, the output end of the cylinder 712 extends, driving the sliding plate 702 to continue to move up until the top of the containing cylinder 710 is flush with the top of the covering tube 602, and then the containing cylinder 710 is removed from the sleeve 706 to clean out the broken petroleum proppant.

[0038] Moreover, the sliding plate 702 is driven upward by the cylinder 712, the push rod 807 is moved upward, the rack plate 808 is moved upward synchronously, and then the gear 803 and the rotating shaft 802 are driven to rotate, so that the internal threaded cylinder 804 is separated from the wheel of the trolley 100, and the trolley 100 can move freely on the ground.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A press for testing petroleum proppants, comprising a trolley (100), characterized in that: A device box (200) is fixedly mounted on the left half of the upper surface of the vehicle deck of the trolley (100), a controller (300) is placed inside the device box (200), a support platform (400) is fixedly mounted on the right half of the upper surface of the vehicle deck of the trolley (100), an extrusion assembly (500) and a protective shell (600) are fixedly mounted on the top of the support platform (400), a containing assembly (700) is arranged inside the protective shell (600), and the containing assembly (700) is located directly below the output end of the extrusion assembly (500).

2. The press for detecting petroleum proppant according to claim 1, characterized in that: The extrusion assembly (500) comprises two pillars (501) fixedly mounted on the top of the support platform (400), the two pillars (501) being distributed front to back, a top frame (502) being fixedly mounted between the tops of the two pillars (501), a hydraulic cylinder (503) being fixedly mounted on the bottom of the top frame (502), the hydraulic cylinder (503) being connected to the controller (300) by signal, a sealing ring (504) being fixedly mounted on the bottom output end of the hydraulic cylinder (503), an extrusion ring (505) being fixedly mounted on the bottom of the sealing ring (504), the outer diameter of the sealing ring (504) being larger than the outer diameter of the extrusion ring (505), and the inner diameter of the sealing ring (504) being equal to the inner diameter of the extrusion ring (505).

3. The press for detecting petroleum proppant according to claim 1, characterized in that: The protective shell (600) comprises a support tube (601) fixedly mounted on the top of the support platform (400); a covering tube (602) is fixedly mounted on the top of the support tube (601); the support tube (601) is communicated with the covering tube (602); an array of guide grooves (605) are provided on the inner wall of the covering tube (602); a support ring (606) is fixedly mounted on the bottom of the inner wall of the covering tube (602); a pressure sensor (607) is fixedly mounted on the top of the support ring (606); and the pressure sensor (607) is connected to the controller (300) by signal.

4. The press for detecting petroleum proppant according to claim 3, characterized in that: The guide groove (605) comprises an inclined groove (6051) and a vertical groove (6052), and the bottom end of the inclined groove (6051) is connected to the top end of the vertical groove (6052).

5. The press for detecting petroleum proppant according to claim 3, characterized in that: The containing assembly (700) comprises guide rods (701) fixed in an array between the top of the support platform (400) and the top wall of the support tube (601), a sliding plate (702) being slidably connected to the guide rods (701), a spring (703) being sleeved on the outer side of the guide rods (701), and the spring (703) being fixedly installed between the bottom of the sliding plate (702) and the top of the support platform (400); A connecting rod (704) is fixedly mounted on the top of the sliding plate (702), the connecting rod (704) passes through the inside of the supporting ring (606), a fixed plate (705) is fixedly mounted on the top of the connecting rod (704), the diameter of the connecting rod (704) is smaller than the inner diameter of the supporting ring (606), the diameter of the sliding plate (702) is smaller than the inner diameter of the supporting tube (601), and the diameter of the fixed plate (705) is equal to the inner diameter of the covering tube (602); The top of the fixed disk (705) is rotatably connected to a sleeve (706), the outer diameter of the sleeve (706) is equal to the inner diameter of the cladding tube (602), a quadrangular prism (707) is fixedly installed at the center of the bottom wall of the sleeve (706), a distance sensor (708) is embedded in the top of the quadrangular prism (707), and the distance sensor (708) is connected to the controller (300) by signal, and a sliding column (709) is fixed to the outer wall array of the sleeve (706), and the sliding column (709) is slidably connected in the guide groove (605); A containing tube (710) is inserted into the sleeve (706); the outer diameter of the containing tube (710) is equal to the inner diameter of the sleeve (706); a sleeve (711) is fixedly installed at the center of the containing tube (710); the sleeve (711) is adapted to be inserted into the quadrangular prism (707).

6. The press for detecting petroleum proppant according to claim 5, characterized in that: An embedded ring (7061) is fixedly mounted on the bottom of the sleeve (706), and an annular groove (7051) is formed on the top of the fixed disk (705). The cross section of the embedded ring (7061) is in a "convex" shape, and the embedded ring (7061) is rotatably connected in the annular groove (7051).

7. The press for detecting petroleum proppant according to claim 5, characterized in that: The containing assembly (700) further comprises a cylinder (712), wherein the cylinder (712) is fixedly mounted on the top of the support platform (400), and the cylinder (712) is located directly below the sliding plate (702).

8. The press for detecting petroleum proppant according to claim 3, characterized in that: The support tube (601) is connected to a ventilation pipe (603), an end of the ventilation pipe (603) is sleeved with a dust filter cover (604), and a plurality of filter holes are formed through the dust filter cover (604).

9. The press for detecting petroleum proppant according to claim 1, characterized in that: A brake assembly (800) is provided on the lower surface of the right end of the vehicle plate of the trolley (100); The brake assembly (800) comprises two hanging plates (801) fixedly mounted on the bottom right end of the vehicle plate of the trolley (100), the two hanging plates (801) are distributed front and back, a rotating shaft (802) is passed through the bottom end of the two hanging plates (801) and is rotatably connected, a gear (803) is fixedly mounted in the middle of the rotating shaft (802), a push rod (807) is fixedly mounted on the bottom of the sliding plate (702), the push rod (807) is passed through and slidably connected to the support platform (400) and the vehicle plate of the trolley (100), a rack plate (808) is fixedly mounted on the right side of the bottom end of the push rod (807), and the rack plate (808) and the gear (803) are meshed with each other; Threads are provided on the circumferential surfaces at both ends of the rotating shaft (802), and the spiral directions of the two sets of threads are opposite. The two ends of the rotating shaft (802) are threadedly connected with internal threaded tubes (804), and the two sides of the two hanging plates (801) are fixedly installed with guide rods (805) on the opposite sides. A lug (806) is fixedly installed on the top of one end of the internal threaded tube (804) close to the hanging plate (801), and the lug (806) is slidably connected to the guide rod (805).

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