Oil injection port gas detection pressure regulating mechanism

Abstract

An oil injection port gas detection pressure regulating mechanism belongs to the technical field of hydraulic cylinder detection equipment. The utility model aims to design an oil injection port gas detection pressure regulating mechanism which can inflate and inject oil into a pump body and can perform gas detection and oil detection. The device comprises a pressure regulating assembly sliding table cylinder, a servo motor, a coupler, a vertical support, a mounting plate fixed on the vertical support, and a bit. A gas detection pressure regulating assembly is divided into three parts: a gas detection pressure regulating assembly movement mechanism, a gas detection assembly and a pressure regulating assembly. The hydraulic pump oil injection detection device is mainly used for detecting an oil injection detection opening in a hydraulic pump in two modes of air pressure injection and oil pressure injection, the detection accuracy is greatly improved, and although the detection is troublesome, the safety of the hydraulic pump in actual use is improved, and the service life of the hydraulic pump in actual use is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic cylinder detection equipment. Background Art

[0002] Hydraulic pumps are divided into manual hydraulic pumps, electric hydraulic pumps or hand-electric integrated hydraulic pumps. As a simple and convenient hydraulic power source, they are widely used in many fields such as the shipbuilding industry, coal mine machinery, petrochemical industry, metallurgy, electric power and heavy machinery. And they are accepted by the majority of users due to their advantages such as small volume, light weight, easy to carry and strong safety. Its function is to convert the mechanical energy of a power machine (such as an electric motor and an internal combustion engine, etc.) into the pressure energy of a liquid. In order to ensure the safety and stable operation of the hydraulic pump during use, a multi-faceted detection of its performance is carried out when the manual pump is put on the market. See Figure 7 , which is a commonly used hydraulic pump of our company. In order to detect its sealing performance, there is a special port for sealing detection (the N detection oil injection port in the figure). Currently, basically oil is injected into the hydraulic pump through this port to check its sealing performance. Summary of the Invention

[0003] The purpose of the utility model is to design an oil injection port air detection pressure regulating mechanism that can inflate and inject oil into the pump body, that is, it can perform air detection and oil detection.

[0004] The utility model includes a pressure regulating component, a slide cylinder, a servo motor, a coupling, a vertical bracket, a mounting plate fixed on the vertical bracket, and a bit. The air detection pressure regulating component is divided into three parts: the air detection pressure regulating component movement mechanism, the air detection component and the pressure regulating component;

[0005] ① Air detection pressure regulating component movement mechanism: The moving motor is fixedly installed on the mounting plate. The lead screw is connected to the motor shaft of the moving motor. Both ends of the lead screw are installed on the lead screw bracket through bearings. The lead screw bracket is installed on the mounting plate. A slider matching the lead screw is sleeved on the lead screw; Slide rails are installed on the mounting plate on both sides of the lead screw, and slide sleeves are installed on the slide rails in a matching manner; A moving table board is installed on the slide sleeve and the slider. The air detection component and the pressure regulating component are installed on the moving table board;

[0006] ② Air detection component: The air detection component hanger is fixedly installed on the moving table board. The cylinder body of the air detection component cylinder is fixed on the air detection component hanger. An inflation chamber is installed under the piston rod of the air detection component cylinder. The inflation chamber is communicated with the gas supply equipment through a pipeline. There is an inflation pipe communicated with the lower end of the inflation chamber. A sealing ring is sleeved outside the inflation pipe;

[0007] ③ Pressure regulating component: The cylinder block of the pressure regulating component's sliding table cylinder is fixedly installed on the moving platen. A slide plate is installed on the slide of the pressure regulating component's sliding table cylinder. There are a servo motor bracket and a pressure regulating component hanging bracket on the slide plate. The housing of the servo motor is fixed on the servo motor bracket. The motor shaft of the servo motor passes through the servo motor bracket and is connected to the top end of the pressure regulating shaft through a coupling. The pressure regulating shaft is installed on the pressure regulating component hanging bracket through bearings. The lower end of the pressure regulating shaft is hexagonal and is inserted into the hexagon socket. The hexagon socket is placed inside the connecting sleeve. The upper end of the connecting sleeve is fixed to the lower surface of the pressure regulating component hanging bracket, and the lower end of the connecting sleeve is fixedly installed with an oil storage chamber; the pressure regulating rod mounting seat is composed of the rod end of the pressure regulating rod and a hexagonal end of the pressure regulating rod that is integral with the rod end of the pressure regulating rod. The hexagonal end of the pressure regulating rod is placed inside the hexagon socket. A telescopic spring is placed inside the hexagon socket between the hexagonal end of the pressure regulating rod and the pressure regulating shaft of the pressure regulating component; there is a reduced-diameter joint at the lower end of the oil storage chamber. The outer diameter of the rod end of the pressure regulating rod is in clearance contact with the inner diameter of the reduced-diameter joint. A longitudinal oil flow groove is opened at the rod end of the pressure regulating rod, and the bit is installed on the pressure regulating rod mounting seat.

[0008] The utility model installs an oil storage chamber fixing bracket on the surface of the sliding table corresponding to the position of the oil storage chamber, and the side of the oil storage chamber is fixed on the oil storage chamber fixing bracket.

[0009] The utility model is mainly an equipment set for the oil injection detection port on the hydraulic pump. It detects through two forms of injecting air pressure and oil pressure, greatly enhancing the detection accuracy. Although it is a bit more troublesome during detection, it increases the safety and service life of the hydraulic pump during actual use. Description of the Drawings

[0010] Figure 1 is the front view of the utility model;

[0011] Figure 2 is the Figure 1 right view of the A-A section of the utility model;

[0012] Figure 3 is the top view of the utility model;

[0013] Figure 4 is the three-dimensional schematic diagram of the utility model;

[0014] Figure 5 is the structural schematic diagram of the pressure regulating component of the utility model;

[0015] Figure 6 is the exploded view of the pressure regulating shaft and its lower connection structure in the pressure regulating component of the utility model;

[0016] Figure 7 is a hydraulic pump with a detection port specifically for detection use. Detailed Implementation Modes

[0017] See Figure 7, is a hydraulic pump produced by the applicant's unit. A detection oil injection port N for exclusive use during detection is reserved on the pump body part. This oil injection port is specially reserved for detection. During actual use, it is sealed with an oil seal. After using it for a period of time, in order to conduct detection, the seal can be removed and the detection can continue. Therefore, this port has no other use except for detection. The device designed in the present utility model is specifically used to detect the pump body corresponding to this port.

[0018] See Figures 1 to 4 , the present utility model includes a pressure regulating assembly sliding table cylinder 2, a servo motor 304, a coupling 306, a vertical support 6, a mounting plate 5 fixed on the vertical support 6, and a bit 312. The vertical support plate 6 and the mounting plate 5 are fixedly installed to form an integral support. The air detection pressure regulating assembly is composed of three parts: the air detection pressure regulating assembly movement mechanism, the air detection assembly, and the pressure regulating assembly. The air detection pressure regulating assembly movement mechanism is installed on the mounting plate 5, and the air detection assembly and the pressure regulating assembly are installed on the air detection pressure regulating assembly movement mechanism.

[0019] The air detection pressure regulating assembly has two functions for the hydraulic pump. One is to inflate for airtight detection of the pump body, and the other is to correspond to the detection oil injection port N (this port is only used during detection. During actual use, it is blocked by a plug and has no actual application). Through this port, oil is injected to detect the sealing condition of the oil circuit in the pump body after gradually increasing the pressure (at this time, the inlet and outlet ports of the hydraulic pump are blocked by oil seals), so as to detect the sealing, pressure resistance, etc. conditions after injecting oil into the pump body. Through the detection of these two parts, it is more possible to determine that the various performances of the manual pump have reached the safe use indicators.

[0020] The following is a detailed description of the three parts of the present utility model:

[0021] S1. Air detection pressure regulating assembly movement mechanism: The moving motor 7 is fixedly installed on the mounting plate 5. The lead screw 8 is connected to the motor shaft of the moving motor 7. Both ends of the lead screw 8 are installed on the lead screw support 13 through bearings. The lead screw support 13 is installed on the mounting plate 5. A slider 15 matching the lead screw 8 is sleeved on the lead screw 8; Slide rails 4 are installed on the mounting plate 5 on both sides of the lead screw 8, and sliding sleeves 14 are installed on the slide rails 4 in a matching manner; A moving table plate 9 is installed on the sliding sleeve 14 and the slider 15. The air detection assembly and the pressure regulating assembly are installed on the moving table plate 9.

[0022] Both the air detection and pressure regulating assemblies are installed on the moving table plate 9. In order to conveniently send the air detection and pressure regulating assemblies to the corresponding position (detection oil injection port N) of the manual pump, a traveling mechanism (air detection pressure regulating assembly movement mechanism) is installed on the moving table plate 9. See Figures 1 to 4After the moving motor 7 is turned on, the motor shaft drives the lead screw 8 to rotate. In this way, the slider 15 that is thread-matched with it will move horizontally on the lead screw 8, thereby driving the moving platen 9 fixedly connected to the slider 15 to also move horizontally. The setting of the slide rail 4 and the sliding sleeve 14 is to make the moving platen 9 move more smoothly and directionally during horizontal movement.

[0023] Air inspection assembly: The air inspection assembly hanger 1 is fixedly installed on the moving platen 9. The cylinder block of the air inspection assembly cylinder 12 is fixed on the air inspection assembly hanger 1. An inflation chamber 10 is installed under the piston rod of the air inspection assembly cylinder 12. The inflation chamber 10 is communicated with the gas supply equipment through a pipeline. There is an inflation pipe 11 communicated with the lower end of the inflation chamber 10, and a sealing ring is sleeved outside the inflation pipe 11.

[0024] The air inspection assembly is installed on the left side of the moving platen 9 (see Figure 2 ). The air inspection assembly hanger 1 is an L-shaped hanger. The cylinder block of the cylinder of the air inspection assembly (air inspection assembly cylinder 12) is fixed on the air inspection assembly hanger 1. Through the up and down movement of the piston rod of the cylinder, the inflation chamber 10 and the inflation pipe 11 at the lower end are pushed up or down. Rising is the idle state, and descending will insert into the oil injection port N for inspection (at this time, there is no oil in the pump body, but the oil inlet and outlet are in a blocked state), and at the same time block the oil injection port N for inspection (that is, the lower section of the inflation chamber 10 just matches the outer diameter of the oil injection port N and blocks it). Then, air is inflated into the pump body through the inflation port on the inflation chamber 10 (see Figure 2 , the round hole on the side of the inflation chamber 10, and this round hole is communicated with the gas source and the air pump through a hose) in sequence through the inflation chamber 10 and the inflation pipe 11 to detect the sealing performance of the entire pump body.

[0025] Pressure regulating assembly: The cylinder block of the pressure regulating assembly slide cylinder 2 is fixedly installed on the moving platen 9. A slide plate 302 is installed on the slide 301 of the pressure regulating assembly slide cylinder 2. There are a servo motor bracket 305 and a pressure regulating assembly hanging bracket 308 on the slide plate 302. The housing of the servo motor 304 is fixed on the servo motor bracket 305. The motor shaft of the servo motor 304 passes through the servo motor bracket 305 and is connected to the top end of the pressure regulating shaft 307 through a coupling 306. The pressure regulating shaft 307 is installed on the pressure regulating assembly hanging bracket 308 through bearings. The lower end of the pressure regulating shaft 307 is hexagonal and is inserted into the internal hexagonal sleeve 313. The internal hexagonal sleeve 313 is placed inside the connecting sleeve 309. The upper end of the connecting sleeve 309 is fixed to the lower surface of the pressure regulating assembly hanging bracket 308. The lower end of the connecting sleeve 309 is fixedly installed with an oil storage chamber 310. The pressure regulating rod mounting seat is composed of a pressure regulating rod end 311 and a pressure regulating rod hexagonal end 316 integrated with the pressure regulating rod end 311. The pressure regulating rod hexagonal end 316 is placed inside the internal hexagonal sleeve 313. A telescopic spring 314 is placed inside the internal hexagonal sleeve 313 between the pressure regulating rod hexagonal end 316 and the pressure regulating shaft 307 of the pressure regulating assembly. The lower end of the oil storage chamber 310 has a reduced-diameter joint 317. The outer diameter of the pressure regulating rod end 311 is in clearance contact with the inner diameter of the reduced-diameter joint 317. A longitudinal oil flow groove 315 is opened on the pressure regulating rod end 311. The bit 312 is installed on the pressure regulating rod mounting seat.

[0026] The pressure regulating assembly is the next step after the airtightness is detected by the air detection assembly. The pressure regulating assembly is installed on the right side of the moving platen 9 (see Figure 1 ). The slide cylinder 2 is an existing device. Its main structure is that the piston drives the slide to slide on the surface of the cylinder block. Its cylinder block is fixed on the moving platen 9 of the air detection and pressure regulating assembly. The entire oil pressure regulating mechanism is installed on its slide-type slide (slide 301) through the slide plate 302. Through the up and down movement of the slide, the slide plate 302 and the entire oil pressure regulating mechanism are driven to move up and down (the same as the air pressure assembly, the upward movement is in the idle state, and the downward movement is in the working state).

[0027] For the oil pressure regulating mechanism, see Figure 5 , the servo motor bracket 305 is a fixed hanging bracket for installing the servo motor 304. The pressure regulating assembly hanging brackets 308 (two are provided in the present invention) are a limiting hanging bracket, that is, they can hang the working part and limit the position of the working part. Both pressure regulating assembly hanging brackets 308 are connected to the pressure regulating shaft 307 through bearings. The pressure regulating shaft 307 can rotate through the bearings relative to the pressure regulating assembly hanging bracket 308. For the oil pressure regulating mechanism, see Figure 6 (the power source is removed). The servo motor 304 and the coupling 306 are the power sources during rotation. The pressure regulating shaft 307 is the connecting and conducting shaft during rotation. The connecting sleeve 309 and the oil storage chamber 310 are used to connect with the oil storage tank (an oil inlet is opened on the oil storage chamber 310, see Figure 5The round holes on the middle oil storage tank 310. This oil inlet is connected to the oil storage tank through a pipeline), and a tank for injecting oil and pressurizing is a fixed component that does not rotate. The connecting sleeve 309 is integrally connected to the oil storage tank 310 and sealed. The top of the connecting sleeve 309 is fixedly installed on the lower surface of the hanging rack 308 of the pressure regulating component at the lowermost end, and a sealing rubber ring is installed to prevent the oil inside the connecting sleeve 309 from being squeezed out from the top. During installation, the rod end 311 of the pressure regulating rod is inserted from the upper end of the connecting sleeve 309. The rod end of the pressure regulating rod 311 will extend from the reduced-diameter joint 317, and the hexagonal end 316 of the pressure regulating rod is stuck inside the oil storage tank 310 of the pressure regulating component. The top end of the rod end 311 of the pressure regulating rod is set in the shape of a hexagonal end (the hexagonal end 316 of the pressure regulating rod), which has two functions. One is to hold the rod end 311 of the pressure regulating rod in the oil storage tank 310 from the top, and the other is that the hexagonal shape matches the inner hexagon of the inner hexagon sleeve 313 and is inserted from the bottom inside. The lower end of the pressure regulating shaft 307 is also hexagonal and is inserted into the upper end of the inner hexagon sleeve 313. In this way, when the pressure regulating shaft 307 of the pressure regulating component rotates, it simultaneously drives the inner hexagon sleeve 313 and the rod end 311 of the pressure regulating rod to rotate accordingly. An axial oil groove (longitudinal oil flow groove 315) is opened on the wall of the rod end 311 of the pressure regulating rod. When the rod end 311 of the pressure regulating rod is inserted inside the oil storage tank 310, one section (upper section) of this oil groove is placed inside the oil storage tank 310, and the other section (lower section) extends outside the oil storage tank 310. In this way, the oil injected into the oil storage tank 310 flows out through this oil groove. The bit 312 is docked with the pressure regulating valve inside the hydraulic pump. Since it is installed at the end of the rod end 311 of the pressure regulating rod, when the rod end 311 of the pressure regulating rod rotates, it also rotates synchronously to regulate the pressure regulating valve by rotation.

[0028] After the air pressure detection is completed and oil injection and pressure regulation are required, the pressure regulating component ( Figure 5 ) is inserted into the oil injection port N for detection until the reduced-diameter joint 317 completely blocks the oil injection port N for detection. At this time, the rod end 311 of the pressure regulating rod and the bit 70312 are placed inside the pump body, and the bit 312 is docked with the pressure regulating valve inside the pump body. At this time, the oil inlet and outlet of the pump body are in a blocked state. Then, the oil storage tank 310 injects oil into the pump body until it is full, and then the oil pressure equipment outside the oil storage tank 310 continues to supply oil slowly to increase the oil pressure inside the pump body. At this time, the servo motor 304 of the pressure regulating component rotates, and at the same time, it drives the coupling 306 of the pressure regulating component, the pressure regulating shaft 307, the inner hexagon sleeve 313, the rod end 311 of the pressure regulating rod, and the bit 70312 to rotate synchronously to adjust the regulating pressure of the pressure regulating valve inside the pump body.

[0029] On the surface of the sliding table 301 of the present utility model, an oil storage tank fixing frame 303 is installed corresponding to the position of the oil storage tank 310, and the side of the oil storage tank 310 is fixed on the oil storage tank fixing frame 303.

[0030] Since the oil storage bin 310 of the voltage regulating component is a stationary part and is connected to the connecting sleeve 309, and its suspension is completed by connecting the upper end of the connecting sleeve 309 to the hanging rack 308 of the voltage regulating component, it is very likely to fall off due to excessive force. At this time, a fixing frame (oil storage bin fixing frame 303) is set up to assist in reducing the suspension force of the connecting sleeve 309 and the hanging rack 308 of the voltage regulating component.

Claims

1. An oil injection air inspection pressure regulating mechanism, comprising a pressure regulating component slide cylinder (2), a servo motor (304), a coupling (306), a vertical support (6), a mounting plate (5) fixed on the vertical support (6), and a bit (312), characterized in that: The air detection and pressure regulating assembly is divided into three parts: the air detection and pressure regulating assembly movement mechanism, the air detection assembly, and the pressure regulating assembly; ① Air detection and pressure regulating assembly movement mechanism: The moving motor (7) is fixedly installed on the mounting plate (5). The lead screw (8) is connected to the motor shaft of the moving motor (7). Both ends of the lead screw (8) are installed on the lead screw bracket (13) through bearings. The lead screw bracket (13) is installed on the mounting plate (5). A slider (15) matching the lead screw (8) is sleeved on the lead screw (8). Slide rails (4) are installed on the mounting plate (5) on both sides of the lead screw (8), and slide sleeves (14) are installed on the slide rails (4) in a matching manner. A moving table board (9) is installed on the slide sleeve (14) and the slider (15). The air detection assembly and the pressure regulating assembly are installed on the moving table board (9); ② Air detection assembly: The air detection assembly hanger (1) is fixedly installed on the moving table board (9). The cylinder body of the air detection assembly cylinder (12) is fixed on the air detection assembly hanger (1). An inflation chamber (10) is installed under the piston rod of the air detection assembly cylinder (12). The inflation chamber (10) is connected to the gas supply equipment through a pipeline. There is an inflation pipe (11) communicating with the lower end of the inflation chamber (10), and a sealing ring is sleeved outside the inflation pipe (11); ③ Pressure regulating assembly: The cylinder body of the pressure regulating assembly slide table cylinder (2) is fixedly installed on the moving table board (9). A slide plate (302) is installed on the slide table (301) of the pressure regulating assembly slide table cylinder (2). There are a servo motor bracket (305) and a pressure regulating assembly hanger (308) on the slide plate (302). The housing of the servo motor (304) is fixed on the servo motor bracket (305). The motor shaft of the servo motor (304) passes through the servo motor bracket (305) and is connected to the top end of the pressure regulating shaft (307) through a coupling (306). The pressure regulating shaft (307) is installed on the pressure regulating assembly hanger (308) through bearings. The lower end of the pressure regulating shaft (307) is hexagonal and is inserted into an internal hexagonal sleeve (313). The internal hexagonal sleeve (313) is placed inside a connecting sleeve (309). The upper end of the connecting sleeve (309) is fixed on the lower surface of the pressure regulating assembly hanger (308). The lower end of the connecting sleeve (309) is fixedly installed with an oil storage chamber (310). The pressure regulating rod mounting seat is composed of a pressure regulating rod end (311) and a pressure regulating rod hexagonal end (316) integrated with the pressure regulating rod end (311). The pressure regulating rod hexagonal end (316) is placed inside the internal hexagonal sleeve (313). A telescopic spring (314) is placed inside the internal hexagonal sleeve (313) between the pressure regulating rod hexagonal end (316) and the pressure regulating assembly pressure regulating shaft (307). The lower end of the oil storage chamber (310) has a reduced-diameter joint (317). The outer diameter of the pressure regulating rod end (311) is in clearance contact with the inner diameter of the reduced-diameter joint (317). A longitudinal oil flow groove (315) is opened on the pressure regulating rod end (311). The bit (312) is installed on the pressure regulating rod mounting seat.

2. The oil injection port air detection and pressure regulating mechanism according to claim 1, characterized in that: An oil storage chamber fixing frame (303) is installed on the surface of the slide table (301) corresponding to the position of the oil storage chamber (310). The side of the oil storage chamber (310) is fixed on the oil storage chamber fixing frame (303).

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