Drilling machine chuck oil pressure testing device

Abstract

A drilling machine chuck oil pressure testing device comprises a hydraulic pump station, a hydraulic oil tower, an oil pressure testing table, an oil outlet tank and an oil return tank, the oil pressure testing table is further provided with a fixing assembly used for fixing a drilling machine chuck, and the hydraulic oil tower is provided with connectors connected with the hydraulic pump station, the oil outlet tank and the oil return tank. A plurality of oil outlet connecting pipes are evenly distributed on the oil outlet tank in the length direction of the oil outlet tank, a plurality of oil return connectors are evenly distributed on the top of the oil return tank in the length direction of the oil return tank, oil return pipes are arranged on the tops of the oil return connectors, and the bottom ends of the oil return pipes are connected with the oil return connectors. The top ends of the oil outlet connecting pipes and the oil return connecting pipes penetrate through the oil pressure testing table and then are connected with the oil return connecting pipes arranged on the oil pressure testing table, and the multiple fixing assemblies correspond to one set of oil outlet connecting pipes and one set of oil return connecting pipes in an adjacent mode respectively. According to the utility model, the test operation of a plurality of chucks can be completed at the same time, the balance and stability of the oil pressure of each detection station can be ensured, and the production efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling chuck processing, in particular to a drilling chuck oil pressure testing device. Background Art

[0002] After the processing and assembly of the chuck for coal mine drilling rigs are completed, an oil pressure test is usually required to ensure that there are no problems with the function of the chuck. There are two advantages of conducting an oil pressure test. One is that it can detect the integrity of the chuck function, and the other is that the internal structure of the chuck can be pre-infiltrated by injecting hydraulic oil, which is conducive to the connection between various parts. At present, there is no special oil pressure detection equipment for oil pressure detection of drilling rig chucks, and manufacturers basically use a simple combination of equipment to complete the detection. For example, when the applicant conducts an oil pressure test, it is necessary to build a test bench and equip one side of the test bench with a hydraulic pump station. When testing is required, place the chuck to be tested on the test bench, connect the oil pipe of the hydraulic pump station, and start the hydraulic pump station. The problem with this relatively simple detection structure and method is that only one chuck can be tested at a time, and workers need to disassemble and assemble each chuck one by one for each test. The workers' daily workload is extremely large and the efficiency is very low. Utility Model Content

[0003] In order to solve the above problems, the purpose of the utility model is to propose a drilling rig chuck oil pressure testing device, which adopts an integrated structural combination and is equipped with a multi-station oil pressure testing bench. It can complete the testing operations of multiple chucks at the same time and can also ensure the balanced and stable oil pressure of each detection station, thereby effectively improving production efficiency.

[0004] The technical solutions adopted by the utility model to solve the above problems are as follows:

[0005] A drilling rig chuck oil pressure testing device comprises a hydraulic pump station, a hydraulic oil tower, an oil pressure testing bench, and an oil outlet tank and an oil return tank arranged on the oil pressure testing bench. The oil pressure testing bench is also provided with a fixing assembly for fixing the drilling rig chuck. The hydraulic oil tower is respectively provided with interfaces connected to the hydraulic pump station, the oil outlet tank and the oil return tank. The oil outlet tank is evenly provided with a plurality of oil outlet pipes along its length direction. The top of the return oil tank is provided with a plurality of oil return interfaces evenly provided along its length direction. A return oil pipe is provided on the top of the return oil interface. The bottom end of the return oil pipe is connected to the return oil interface, and the top end passes through the oil pressure testing bench and is connected to the return oil pipe arranged on the oil pressure testing bench. There are a plurality of fixing assemblies, which are respectively adjacent to and correspond to a group of the oil outlet pipes and the oil return pipes.

[0006] As a preferred technical solution, the fixing assembly includes a fixing ring, an arc-shaped limit plate arranged on the top circumference of the fixing ring, and a fixing bolt arranged on one side of the arc-shaped limit plate. The bottom of the fixing ring is detachably arranged on the top table surface of the oil pressure test bench, and the inner diameter of the fixing ring matches the outer diameter of the drill chuck.

[0007] As a preferred technical solution, two arc-shaped limit plates are symmetrically arranged on the top of the fixing ring, and the arc length of the arc-shaped limit plates is not greater than one sixth of the circumference of the fixing ring.

[0008] As a preferred technical solution, a sealing baffle is horizontally arranged in the hydraulic oil tower, and the sealing baffle divides the inner cavity of the hydraulic oil tower into two parts, namely, an oil outlet tower box located on the upper side and an oil return tower box located on the lower side. A hydraulic oil inlet for connecting to the oil outlet on the hydraulic pump station is arranged on one side of the oil outlet tower box, and a hydraulic oil outlet for connecting to the oil inlet on the oil outlet tank is arranged on the other side. A return oil inlet for connecting to the oil outlet on the return oil tank is arranged on one side of the return oil tower box, and a return oil outlet for connecting to the oil return port on the hydraulic pump station is arranged on the other side.

[0009] As a preferred technical solution, the oil outlet tank is arranged on one side of the top of the oil pressure test bench, and the oil return tank is mounted at the bottom of the table top of the oil pressure test bench.

[0010] As a preferred technical solution, a cooling box is provided on the hydraulic pump station.

[0011] As a preferred technical solution, air cooling boxes are provided at the top and bottom of the hydraulic oil tower.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The device described in this application optimizes the design of the test bench structure and adopts a multi-station linkage oil pressure test bench. One side can simultaneously meet the oil pressure test work of multiple chucks, which can greatly improve production efficiency. In addition, in order to ensure the balanced and stable oil supply pressure of each station on the oil pressure test bench, a hydraulic oil tower is introduced on the basis of the hydraulic pump station. As a transfer and buffer structure of hydraulic oil, it can not only stabilize the oil pressure, but also cool the hydraulic oil, which can reduce the cooling burden of the hydraulic pump station. Compared with the original test structure, the use of the device of this application for chuck oil pressure testing greatly saves production time and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is a top view structural diagram of the oil pressure test bench;

[0016] Figure 3 A schematic diagram of the structure of the fixed component.

[0017] Markings in the figure: 1. Hydraulic pump station, 2. Hydraulic oil tower, 21. Sealing partition, 22. Oil outlet tower box, 221. Hydraulic oil inlet, 222. Hydraulic oil outlet, 23. Return oil tower box, 231. Return oil inlet, 232. Return oil outlet, 3. Oil pressure test bench, 4. Oil outlet tank, 5. Return oil tank, 51. Return oil interface, 52. Return oil pipe, 6. Oil outlet connecting pipe, 7. Return oil connecting pipe, 8. Fixing ring, 9. Arc limit plate, 10. Fixing bolt, 11. Cooling box, 12. Air cooling box. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] As shown in the figure, the present embodiment discloses a drilling chuck oil pressure testing device, comprising a hydraulic pump station 1, a hydraulic oil tower 2, an oil pressure testing bench 3, and an oil outlet tank 4 and an oil return tank 5 arranged on the oil pressure testing bench 3. The oil pressure testing bench 3 is also provided with a fixing component for fixing the drilling chuck. The hydraulic oil tower 2 is respectively provided with interfaces connected to the hydraulic pump station 1, the oil outlet tank 4 and the oil return tank 5. The oil outlet tank 4 is evenly provided with a plurality of oil outlet pipes 6 along its length direction. The top of the return oil tank 5 is provided with a plurality of oil return interfaces 51 evenly provided along its length direction. The top of the return oil interface 51 is provided with an oil return pipe 52. The bottom end of the return oil pipe 52 is connected to the oil return interface 51, and the top end passes through the oil pressure testing bench 3 and is connected to the oil return pipe 7 arranged on the oil pressure testing bench 3. There are a plurality of fixing components, and they are adjacent to a group of the oil outlet pipes 6 and the oil return pipes 7, respectively.

[0020] Among them, the fixing assembly includes a fixing ring 8, an arc-shaped limit plate 9 arranged on the top circumference of the fixing ring 8, and a fixing bolt 10 arranged on one side of the arc-shaped limit plate 9. The bottom of the fixing ring 8 is detachably arranged on the top table surface of the oil pressure test bench 3, and the inner diameter of the fixing ring 8 matches the outer diameter of the drilling rig chuck; two arc-shaped limit plates 9 are symmetrically arranged on the top circumference of the fixing ring 8, and the arc length of the arc-shaped limit plate 9 is not greater than one sixth of the circumference of the fixing ring 8.

[0021] In this embodiment, the main body of the hydraulic oil tower 2 is a rectangular box-type structure, and a sealing partition 21 is horizontally arranged in the hydraulic oil tower 2. The sealing partition 21 divides the inner cavity of the hydraulic oil tower 2 into two parts, an oil outlet tower box 22 located on the upper side and an oil return tower box 23 located on the lower side. One side of the oil outlet tower box 22 is provided with a hydraulic oil inlet 221 for connecting to the oil outlet on the hydraulic pump station 1, and the other side is provided with a hydraulic oil outlet 222 for connecting to the oil inlet on the oil outlet tank 4. One side of the oil return tower box 23 is provided with a hydraulic oil outlet 221 for connecting to the oil return tank 4. 5, and an oil return inlet 231 connected to the oil outlet on the hydraulic pump station 1 is provided on the other side. An oil return outlet 232 is provided on the other side for connecting to the oil return port on the hydraulic pump station 1. After the hydraulic pump station 1 is started, the hydraulic oil enters the oil outlet box 22 through the hydraulic oil inlet 221, and then flows out through the hydraulic oil outlet 222 and enters the oil outlet tank 4. The hydraulic oil circulated out after the test further enters the return oil tank 5, enters the return oil tower box 23 through the return oil inlet 231, and finally circulates back to the hydraulic pump station 1 through the return oil outlet 232, thereby forming a complete hydraulic oil circulation loop.

[0022] The setting of the hydraulic oil tower 2 can mainly play two roles. First, the hydraulic oil tower 2 serves as a buffer area for hydraulic oil. It can cache the hydraulic oil and stabilize the input and output oil pressure of the hydraulic oil. It can ensure that the oil pressure of the hydraulic oil entering the oil tank 4 is always balanced and stable, thereby ensuring that the hydraulic oil pressure at each test station is uniform and stable, thereby ensuring the uniformity of the test quality of the drilling rig chuck; second, a cooling device can be separately set on the hydraulic oil tower 2, which can cool the hydraulic oil and reduce the temperature, thereby alleviating the cooling burden of the hydraulic pump station 1.

[0023] In this embodiment, the oil outlet tank 4 is arranged on one side of the top of the oil pressure test bench 3, and the oil return tank 5 is mounted at the bottom of the table of the oil pressure test bench 3. A plurality of oil outlet pipes 6 are evenly arranged on the side wall of the oil outlet tank 4, each of which is a test station, and each of which is provided with a one-way valve and a pressure stabilizing valve, so as to ensure that each of the oil outlet pipes 6 works independently without interfering with each other, and the oil outlet pressure is stable and uniform.

[0024] In this embodiment, a cooling box 11 is provided on the hydraulic pump station 1. As mentioned above, air cooling boxes 12 are provided on the top and bottom of the hydraulic oil tower 2, and the air cooling boxes 12 can cool the hydraulic oil, thereby reducing the cooling burden of the hydraulic pump station 1.

[0025] The above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the present invention according to the technical solution and inventive concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A drilling rig chuck oil pressure testing device, characterized in that: The invention comprises a hydraulic pump station (1), a hydraulic oil tower (2), an oil pressure test bench (3), and an oil outlet tank (4) and an oil return tank (5) arranged on the oil pressure test bench (3); the oil pressure test bench (3) is also provided with a fixing assembly for fixing a drilling rig chuck; the hydraulic oil tower (2) is respectively provided with interfaces connected to the hydraulic pump station (1), the oil outlet tank (4) and the oil return tank (5); the oil outlet tank (4) is evenly provided with a plurality of oil outlet pipes (6) along its length direction; The top of the oil return tank (5) is provided with a plurality of oil return interfaces (51) evenly distributed along its length direction, and the top of the oil return interface (51) is provided with an oil return pipe (52), the bottom end of the oil return pipe (52) is connected to the oil return interface (51), and the top end passes through the oil pressure test bench (3) and is connected to the oil return pipe (7) provided on the oil pressure test bench (3), and the fixing components are provided in plurality, and are respectively adjacent to and corresponding to a group of the oil outlet pipe (6) and the oil return pipe (7).

2. A drilling chuck oil pressure testing device as claimed in claim 1, characterized in that: The fixing assembly comprises a fixing ring (8), an arc-shaped limit plate (9) arranged on the top circumference of the fixing ring (8), and a fixing bolt (10) arranged on one side of the arc-shaped limit plate (9); the bottom of the fixing ring (8) is detachably arranged on the top surface of the oil pressure test bench (3), and the inner diameter of the fixing ring (8) matches the outer diameter of the drilling rig chuck.

3. A drilling chuck oil pressure testing device as claimed in claim 2, characterized in that: Two arc-shaped limiting plates (9) are symmetrically arranged on the top of the fixing ring (8), and the arc length of the arc-shaped limiting plates (9) is not greater than one sixth of the circumference of the fixing ring (8).

4. A drilling chuck oil pressure testing device as claimed in claim 1, characterized in that: A sealing baffle (21) is horizontally arranged inside the hydraulic oil tower (2), and the sealing baffle (21) divides the inner cavity of the hydraulic oil tower (2) into two parts, an upper oil outlet tower box (22) located on the upper side and an lower oil return tower box (23) located on the lower side. One side of the oil outlet tower box (22) is provided with a hydraulic oil inlet (221) for connecting to the oil outlet on the hydraulic pump station (1), and the other side is provided with a hydraulic oil outlet (222) for connecting to the oil inlet on the oil outlet tank (4). One side of the oil return tower box (23) is provided with a return oil inlet (231) connected to the oil outlet on the return oil tank (5), and the other side is provided with a return oil outlet (232) for connecting to the return oil port on the hydraulic pump station (1).

5. The drilling chuck oil pressure testing device according to claim 1, characterized in that: The oil outlet tank (4) is arranged on one side of the top of the oil pressure test bench (3), and the oil return tank (5) is mounted at the bottom of the tabletop of the oil pressure test bench (3).

6. The drilling chuck oil pressure testing device according to claim 1, characterized in that: The hydraulic pump station (1) is provided with a cooling box (11).

7. The drilling chuck oil pressure testing device according to claim 1, characterized in that: Air cooling boxes (12) are provided at the top and bottom of the hydraulic oil tower (2).

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