WO2023045661A1

WO2023045661A1 - Piston jig

Info

Publication number: WO2023045661A1
Application number: PCT/CN2022/113801
Authority: WO
Inventors: 李国中
Original assignee: 河北金润矿山设备集团有限公司
Priority date: 2021-09-23
Filing date: 2022-08-22
Publication date: 2023-03-30
Also published as: CN216261320U

Abstract

A piston jig, comprising a body (4), a sieve plate (5) disposed at the upper part inside the body (4), compartments (3) disposed at the lower part inside the body (4), and a power chamber (1) disposed inside each compartment (3) and fixedly connected to the body (4), a piston (2) being provided in each power chamber (1), a driving device for driving the piston (2) to move along the power chamber being fixedly provided outside the body (4), and the piston (2) sealedly fitting the inner wall of the power chamber. The driving device drives the piston (2) to perform reciprocating motion up and down, so as to achieve hydraulic jigging, thus there is no need to provide a high-power air compressor apparatus or to install an air valve and an electromagnetic valve for air distribution, thereby reducing energy consumption, and because a mechanical structure is used to replace the air valve and the electromagnetic valve, thereby improving reliability and reducing the failure rate.

Description

A piston jig

technical field

The utility model relates to the technical field of coal preparation machinery, in particular to a piston jig.

Background technique

Jig machine is a kind of coal preparation equipment commonly used in coal preparation plants. It is used to screen raw coal and separate gangue, medium coal and clean coal in raw coal. The jig mentioned in "Mineral Processing" published by China University of Mining and Technology Press is a hydraulic jig commonly used at present. This jig is equipped with an air valve and a body with water inside. The upper part of the body is provided with a sieve plate, and the lower part is provided with a plurality of compartments, each compartment is provided with a power chamber, and the opening of the power chamber is downward. When the jig is working, the air valve sends compressed air to the power chamber according to the set rule, so that part of the water in the power chamber is discharged into the compartment, so the water level in the body will rise. The damper discharges the air delivered to the power chamber according to the set rule, the water outside the power chamber in the body will return to the power chamber, and the water level in the body will drop. Therefore, the water level in the body will rise and fall repeatedly according to the set rule, and drive the raw coal on the sieve plate to move up and down to realize hydraulic jigging, and then the gangue, medium coal and clean coal are discharged to the Each discharge channel, so as to realize the separation of raw coal.

This kind of jig needs to be equipped with high-power compressed air equipment, and the air valve structure of the jig is complex, and a large number of electromagnetic valves need to be installed to control the air valves to distribute air to each power chamber, so the cost is high and the power consumption is high. Large, and the solenoid valve is a vulnerable part that needs to be replaced frequently, resulting in poor reliability of the jig, and the replacement of the solenoid valve will inevitably affect the normal production.

The patent application with the application number CN201721699587.5 discloses a screening jig for mining. The jig is equipped with an impact device. The impact device includes a rotatable fixed plate arranged under the sieve plate. When the fixed plate rotates, it drives The water in the jig body fluctuates up and down to separate the raw coal on the sieve plate. This jig has limited action on the raw coal, and the water in the body fluctuates unevenly.

Utility model content

The technical problem to be solved by the utility model is to provide a piston type jigging machine to replace compressed air to realize hydraulic jigging, so as to solve the problem of poor reliability of the jigging machine.

In order to solve the above problems, the technical solution adopted in the utility model is:

A piston jig, comprising a body, a sieve plate arranged on the upper side of the body, a compartment arranged on the lower side of the body, and a power chamber fixedly connected to the body arranged in the compartment, the power chamber is equipped with There is a piston, and a drive device for driving the piston to move along the power chamber is fixedly arranged outside the body, and the piston is in sealing fit with the inner wall of the power chamber.

Further, the body is provided with a water chamber, the water chamber communicates with the outside atmosphere, the water chamber communicates with the power chamber, and the water chamber is provided with a vertical slide bar, and the slide bar is connected to the water chamber The wall of the chamber is slidingly connected, the lower end of the sliding rod is fixedly connected with the piston, and a power unit for driving the sliding rod to reciprocate up and down is fixedly installed outside the water chamber.

Further, the body is fixedly connected with a horizontal pipe, and the end of the horizontal pipe away from the body is blocked, and the top of the horizontal pipe is fixedly connected with a vertical pipe, and the horizontal pipe communicates with the vertical pipe; the water chamber includes a horizontal The middle water chamber in the pipe and the regulating water chamber in the vertical pipe, the sliding rod is arranged in the center of the vertical pipe, the sliding rod is slidably connected with the vertical pipe, and the body is provided with a power chamber inside the position corresponding to the horizontal pipe. A gap communicating with the intermediate water chamber, a curved arm is arranged in the gap, one end of the curved arm is fixedly connected to the slide rod, and the other end is fixedly connected to the piston, and the power unit is fixedly connected to the vertical pipe.

Further, the piston includes a base plate, a guide tube fixedly connected through the middle of the base plate, a sealing ring fixedly arranged on the edge of the base plate, and a blocking plate arranged at the lower part of the guide tube; the seal ring is vertically sealed with the inner wall of the power chamber In cooperation, the blocking plate is slidably connected with the bottom plate, and the bottom plate is connected with the driving device.

Further, the power unit is a cylinder fixedly connected to the top of the vertical pipe.

Further, the power unit includes a sliding frame fixedly connected to the end of the sliding rod away from the crank arm, a cam arranged in the sliding frame for driving the sliding frame to reciprocate axially along the sliding rod, a transmission shaft fixedly connected with the cam and A deceleration motor fixedly arranged on the machine body, the deceleration motor is connected with the drive shaft through transmission.

The positive effect of the utility model is:

1. The utility model is equipped with a piston in the power chamber, and uses a cam and a sliding frame to drive the piston to reciprocate up and down, so as to realize hydraulic jigging, so there is no need to be equipped with high-power air pressure equipment, nor to set up air valves and air distribution valves. Solenoid valve reduces energy consumption and production cost. At the same time, because the utility model adopts a mechanical structure to replace the air valve and the electromagnetic valve, the reliability is improved and the failure rate is reduced.

2. The piston includes a bottom plate, a guide tube, a sealing ring and a blocking plate. When the bottom plate moves upward, the blocking plate opens, and when the bottom plate moves downward, the blocking plate closes the guiding tube, so that the water level in the body can drop rapidly , can also save energy consumption.

3. The power unit can use a cylinder, which drives the piston to reciprocate up and down to realize hydraulic jigging and simplify the structure.

Description of drawings

Fig. 1 is the structural representation of

embodiment

1 and 2;

Fig. 2 is the sectional view of A-A among Fig. 1;

Fig. 3 is the top view of Fig. 1;

Fig. 4 is the structural representation of driving device in embodiment 3;

Fig. 5 is the structural representation of driving device in

embodiment

1 and 2;

Fig. 6 is a schematic structural view of the piston when the slide bar moves upwards in embodiment 2;

Fig. 7 is a schematic structural view of the piston when the slide bar moves downward in embodiment 2;

Fig. 8 is a partially enlarged view of part II in Fig. 1;

In the figure, 1. power chamber; 2. piston; 3. compartment; 4. body; 5. sieve plate; 6. bevel gearbox; 7. transmission shaft; 8. slide frame; 9. cam; 10. slide ; 11, bracket; 12, vertical pipe; 13, regulating water chamber; 14, intermediate water chamber; 15, curved arm; 16, gap; 17, horizontal pipe; 18, power shaft; 19, geared motor; 20, sealing ring ; 21, bottom plate; 22, guide tube; 23, blocking plate; 24, sliding column; 25, cylinder.

Detailed ways

Example 1

As shown in Figures 1 and 2, a piston jig includes a body 4, a sieve plate 5 arranged on the upper side of the body 4, a compartment 3 arranged on the lower side of the body 4, and a compartment 3 arranged in the compartment 3. The power chamber 1 fixedly connected with the body 4 inside. There are two compartments 3, each compartment 3 is provided with a power chamber 1, and each power chamber 1 is provided with a transverse piston 2. A drive device for driving the piston 2 to move along the power chamber 1 is fixed outside the body 4 , and the piston 2 is in sealing fit with the inner wall of the power chamber 1 .

The body 4 is provided with a water chamber, the water chamber communicates with the outside atmosphere, the water chamber communicates with the power chamber 1, and the water chamber is provided with a vertical slide bar 10, and the slide bar 10 is connected to the water chamber. The chamber wall of the chamber is slidingly connected, the lower end of the sliding rod 10 is fixedly connected with the piston 2, and a power unit for driving the sliding rod 10 to reciprocate up and down is fixedly installed outside the water chamber.

The outer side of the machine body 4 is staggeredly welded with horizontal tubes 17, and the outer ends of the horizontal tubes 17 are provided with blind plates fixedly connected with them by bolts. The tops of the horizontal tubes 17 are provided with vertical tubes 12 fixedly connected to them through flanges, and the horizontal tubes 17 communicate with the corresponding vertical tubes 12 . The water chamber includes an intermediate water chamber 14 in the horizontal pipe 17 and a regulating water chamber 13 in the vertical pipe 12 . Each vertical tube 12 is provided with a slide bar 10 , and the slide bar 10 is arranged at the center of the vertical tube 12 . Two sliding sleeves are arranged inside the vertical pipe 12 along its axis, and the sliding sleeves are fixedly connected with the vertical pipe 12 through a fixed rod, and the sliding rod 10 is vertically slidably connected in the sliding sleeves. The upper parts of the vertical pipes 12 are all in communication with the outside atmosphere. The body 4 is provided with a gap 16 at the position corresponding to the horizontal pipe 17, which connects the inside of the power chamber 1 with the intermediate water chamber 14. A curved arm 15 is arranged in the gap 16, and one end of the curved arm 15 is connected to the slide. The rod 10 is fixedly connected by screws, and the other end is fixedly connected with the piston 2 by screws, and the power unit is fixedly connected on the top of the standpipe 12 . The position of the piston 2 is lower than the bottom end of the slide rod 10 .

As shown in Fig. 1, Fig. 3, Fig. 5 and Fig. 8, the power unit includes a C-shaped sliding frame 8 welded on the top of the sliding bar 10, a cam 9 arranged in the sliding frame 8, and a fixed connection with the cam 9. The transmission shaft 7 and the geared motor 19 fixedly arranged on the body 4, the geared motor 19 is connected with the transmission shaft 7 in transmission. The side of the sliding frame 8 is provided with a bracket 11 fixedly connected to the top of the vertical pipe 12, the transmission shaft 7 is connected to the bracket 11 for rotation, the side of the sliding frame 8 is connected to the transmission shaft 7, and the sliding frame 8 A vertical strip-shaped hole is provided at the part penetratingly connected with the transmission shaft 7 , the transmission shaft 7 is located in the strip-shaped hole, and the transmission shaft 7 is slidingly matched with the sliding frame 8 . The geared motor 19 is fixed on the top of the body 4 near the middle by screws. The geared motor 19 is a double output shaft structure, and its two ends are provided with power shafts 18 for outputting power. A bevel gearbox 6 is arranged between the power shaft 18 and the corresponding transmission shaft 7, and the bevel gearbox 6 is fixedly connected to the top of the body 4 by screws.

When the reduction motor 19 rotates, it drives the cam 9 to rotate, thereby driving the corresponding slide frame 8 to reciprocate up and down, and then drives the slide rod 10 connected to the slide frame 8 and the piston 2 to reciprocate up and down.

When the piston 2 moves downward, the piston 2 pushes the water below it out of the power chamber 1, and flows into the compartment 3, and then flows upward, so that the water flow through the sieve plate 5 flows upward. Simultaneously, driven by the piston 2, the water in the regulating water chamber 13 flows downward, passes through the intermediate water chamber 14 and enters the power chamber 1 on the top of the piston 2 through the corresponding gap 16, and the water level of the regulating water chamber 13 drops.

Similarly, when the piston 2 moves upwards, the flow direction of the water flowing through the sieve plate 5 is downward, and the piston 2 discharges the water on its upper part from the power chamber 1, and then flows into the regulating water chamber 13 after passing through the intermediate water chamber 14, and the water in the regulating water chamber 13 is adjusted. The water level rises. Repeatedly, the water level in the machine body 4 rises and falls repeatedly, and drives the raw coal on the sieve plate 5 to move up and down, thereby realizing hydraulic jigging.

Example 2

As shown in Fig. 1, Fig. 2, Fig. 3, Fig. 5, Fig. 6, Fig. 7 and Fig. 8, the difference between this embodiment and Embodiment 1 is that the piston 2 includes a base plate 21, which penetrates through the middle of the base plate 21 The guide tube 22 fixedly connected, the annular sealing ring 20 arranged on the edge of the bottom plate 21 by screws, and the blocking plate 23 arranged at the lower part of the guide tube 22 . The sealing ring 20 is vertically sealed with the inner wall of the power chamber 1, and the bottom plate 21 is fixedly connected with a vertical sliding column 24 around the guide tube 22 through threads, and the sliding columns 24 are all connected to the bottom plate 21 through and slidingly. , the bottom plate 21 is fixedly connected to the end of the crank arm 15 away from the slide bar 10 through screws.

As shown in Figure 7, when the crank arm 15 drives the base plate 21 to move downward, under the action of the water flow, the blocking plate 23 slides upward relative to the base plate 21 to block the bottom end of the guide tube 22, thereby closing the top of the base plate 21. Separated from the water below, so that more water can flow out of the power chamber 1.

As shown in Figure 6, when the crank arm 15 drives the base plate 21 to move upward, under the action of gravity, the blocking plate 23 moves downward relative to the base plate 21, and the bottom end of the guide tube 22 is opened, so that the guide tube 22 will The water above and below the bottom plate 21 communicates, thereby making the water level in the body 4 drop faster, and also reducing the resistance of the bottom plate 21 moving upward, thereby saving energy consumption.

Example 3

As shown in FIG. 4 , the difference between this embodiment and Embodiment 1 is that the power unit is an air cylinder 25 arranged at the top of each slide rod 10 . The cylinder body of the cylinder 25 is fixedly connected to the top of the corresponding vertical pipe 12 by screws, and the push rod of the cylinder 25 is fixedly connected to the corresponding slide rod 10 by screws. When the cylinder 25 is in action, it drives the piston 2 to move up and down, thereby realizing hydraulic jigging.

The descriptions of the above-mentioned embodiments are relatively detailed and specific, expressing the preferred embodiments of the present invention, and are only used to illustrate the technical ideas and characteristics of the present invention, and its purpose is to enable those skilled in the art to understand the present invention. The content of the new model is implemented according to it, but it is not limited to the utility model, and the patent scope of the utility model cannot be limited only by this embodiment, that is, any equivalent changes or modifications made to the spirit disclosed in the utility model, For researchers or technicians in the field, without departing from the structure of the utility model, local improvements within the system and changes and transformations between subsystems are still within the patent scope of the utility model.

Claims

A piston type jig, comprising a body (4), a sieve plate (5) arranged on the upper side of the body (4), a compartment (3) arranged on the lower side of the body (4), and a (3) The power chamber (1) fixedly connected with the body (4) is characterized in that the power chamber (1) is provided with a piston (2), and the body (4) is fixedly arranged outside for driving A driving device for the movement of the piston (2) along the power chamber (1), and the piston (2) is in sealing fit with the inner wall of the power chamber (1).
A kind of piston jig according to claim 1, characterized in that, a water chamber is arranged outside the body (4), the water chamber communicates with the outside atmosphere, and the water chamber is connected to the power chamber (1) connected, the water chamber is provided with a vertical slide bar (10), the slide bar (10) is slidably connected with the chamber wall of the water chamber, and the lower end of the slide bar (10) is fixedly connected with the piston (2), A power unit for driving the slide bar (10) to reciprocate up and down is fixedly arranged outside the water chamber.
A kind of piston jig according to claim 2, characterized in that, a horizontal tube (17) is fixedly connected to the outside of the body (4), and one end of the horizontal tube (17) away from the body (4) is sealed. Blocking, the top of the horizontal pipe (17) is fixedly connected with a vertical pipe (12), and the horizontal pipe (17) communicates with the vertical pipe (12); the water chamber includes an intermediate water chamber ( 14) and the regulating water chamber (13) in the standpipe (12), the slide bar (10) is arranged at the center of the standpipe (12), and the slide bar (10) is slidably connected with the standpipe (12), so The machine body (4) is provided with a gap (16) connecting the inside of the power chamber (1) with the intermediate water chamber (14) at the position corresponding to the horizontal pipe (17), and a curved arm is arranged in the gap (16). (15), one end of the crank arm (15) is fixedly connected to the slide rod (10), the other end is fixedly connected to the piston (2), and the power unit is fixedly connected to the standpipe (12).
A piston jig according to claim 1, characterized in that, the piston (2) comprises a bottom plate (21), a guide tube (22) fixedly connected to the middle of the bottom plate (21), a fixedly arranged The sealing ring (20) on the edge of the bottom plate (21) and the blocking plate (23) arranged at the bottom of the guide tube (22); the sealing ring (20) is vertically sealed with the inner wall of the power chamber (1), and the The blocking plate (23) is slidingly connected with the base plate (21), and the base plate (21) is connected with the driving device.
A piston jig according to claim 2, characterized in that the power unit is a cylinder (25) fixedly connected to the top of the standpipe (12).
A kind of piston jig according to claim 2, characterized in that, the power unit comprises a sliding frame (8) fixedly connected to the end of the sliding rod (10) away from the crank arm (15), (8) The cam (9) used to drive the slide frame (8) to reciprocate axially along the slide rod (10), the transmission shaft (7) fixedly connected with the cam (9) and fixedly arranged on the body (4) The geared motor (19) on the gear, the geared motor (19) is connected with the drive shaft (7).