Precisely-cast mechanical stand column for mining machine
By introducing drive components and pneumatic systems into the mechanical column, dust on the outside of the piston is automatically cleared, solving the problem of cylinder jamming caused by dust, improving the service life of the sealing ring and the stability of the column, and achieving efficient dust cleaning and sealing effects.
Patent Information
- Application Number
- CN202423222517.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-12-26
AI Technical Summary
In a dusty working environment, the movable column of a single telescopic column is easily exposed to dust during the extension and retraction process, causing dust to adhere to and enter the cylinder body, causing the cylinder body to get stuck and other problems. The sealing effect of the existing sealing design decreases after long-term use.
A mechanical column including a drive assembly, a cleaning assembly and an air guide assembly was designed. A servo motor was used to drive the threaded rod and threaded barrel. Combined with a rubber ring and an air jet hole, the dust on the outside of the column was automatically scraped and blown off. The pneumatic system was used for cleaning, reducing dust contact with the sealing ring.
It significantly increases the service life of the sealing ring, reduces the wear rate, ensures the normal operation and long-term stability of the column, and improves maintenance efficiency and equipment reliability.
Smart Images
Figure CN223447070U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to mechanical stand column technical field, concretely is a kind of mechanical stand column for precision casting of mine machine. BACKGROUND
[0002] The mechanical stand column for precision casting of mine machine is a high-strength structural component for supporting and protecting the mine machine. The mechanical stand column for mine machine, also known as the hydraulic support stand column, is a key equipment in the fully-mechanized coal mining face, and the telescopic stand column is the core component of the hydraulic support. In the field of coal mining, the hydraulic support stand column is mainly divided into three types: single telescopic stand column, single telescopic mechanical lengthening stand column and double telescopic stand column. Among the three types, the double telescopic stand column can adapt to the mining needs of most coal mines due to its largest telescopic ratio.
[0003] In a dusty working environment, the movable column of the single telescopic stand column is prone to contact with dust during telescoping, which causes the dust to adhere to the surface of the movable column. When these dusts enter the cylinder body along with the telescoping action of the movable column, it may cause the cylinder body to be stuck, etc., thereby affecting the normal work of the stand column.
[0004] To solve this problem, the existing technical solution prevents dust from entering by installing multiple layers of sealing rings and sealing pads. Although this design can protect the stand column to some extent, the continuous abrasive effect of dust will reduce the sealing effect of the sealing rings and sealing pads after a long period of use, ultimately affecting their long-term sealing performance. Therefore, a mechanical stand column for precision casting of mine machine is proposed to solve the above problems. UTILITY MODEL CONTENT
[0005] The utility model aims to provide a mechanical stand column for precision casting of mine machine to solve the problems raised in the background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions:
[0007] The utility model provides a kind of precision casting mechanical column for mining machine, including cylinder and piston, piston is installed in the inside of cylinder, driving assembly is fixedly connected with the outside of cylinder, cleaning assembly is fixedly connected with the top of driving assembly, gas guide assembly is fixedly connected with the outside of cylinder, driving assembly includes shell, servo motor is fixedly connected with the inside of shell, battery is fixedly connected with the inside of shell, servo motor main shaft end is fixedly connected with threaded rod, inner thread cylinder is spirally connected with the outside of threaded rod, cleaning assembly includes ring shell, rubber ring piece is fixedly connected with the inside of ring shell, annular groove is arranged in the inside of ring shell, gas injection hole is arranged in the inside of ring shell close to annular groove, connecting seat shell is fixedly connected with the left end of ring shell, lower rubber ring is fixedly connected with the bottom of ring shell, air vent is arranged in the lower end of connecting seat shell, gas guide assembly includes fixed cylinder shell, cylinder shell is fixedly connected with the top of fixed cylinder shell, fixed cylinder shell is attached to the outside of limiting column, inner hollow guide rod is fixedly connected with the top of limiting column, first check valve is fixedly connected with the inside of limiting column, second check valve is fixedly connected with the inside of front end of fixed cylinder shell, filter plate is fixedly connected with the inside of front end of fixed cylinder shell close to second check valve, the left side of shell is fixedly connected with the outside of cylinder, the right side of fixed cylinder shell is fixedly connected with the left side of cylinder, the top of inner thread cylinder is fixedly connected with the bottom of ring shell, the bottom of connecting seat shell is fixedly connected with the top of inner hollow guide rod.
[0008] As the further optimization of the utility model, the inside of the shell is hollow, a through hole is arranged in the inside of the shell close to the main shaft of the servo motor, the servo motor is electrically connected with the battery, and a threaded hole is arranged in the inside of the inner thread cylinder.
[0009] As the further optimization of the utility model, one end of the ring shell close to the inner thread cylinder is fixedly connected with an ear seat, a cylindrical through hole is arranged in the inside of the ring shell, and the ring shell is sleeved on the outside of the rubber ring piece.
[0010] As the further optimization of the utility model, the rubber ring piece is sleeved on the outside of the piston, the inside of the rubber ring piece is tightly attached to the outside of the piston, the rubber ring piece is installed between the gas injection hole at the upper end and the gas injection hole at the lower end, a sealing ring is installed in the inside of the upper end of the cylinder, and the cylinder is attached to the outside of the piston through the sealing ring.
[0011] As the further optimization of the utility model, the annular groove is in the shape of a circular ring, the annular groove is communicated with the gas injection hole, the gas injection hole penetrates the inside of the ring shell, and the gas injection holes are evenly and equidistantly arranged in the inside of the ring shell in a circumferential shape.
[0012] As the further optimization of the utility model, wherein: the connecting seat shell inside is hollow, the ring shell is close to the inside of connecting seat shell and is equipped with through hole, the ring groove is communicated with the inside of connecting seat shell through the through hole of ring shell, the inside of inner empty guide rod is hollow, the connecting seat shell is communicated with the inside of inner empty guide rod through air vent.
[0013] As the further optimization of the utility model, wherein: the connecting seat shell inside is hollow, the ring shell is close to the inside of connecting seat shell and is equipped with through hole, the ring groove is communicated with the inside of connecting seat shell through the through hole of ring shell, the inside of inner empty guide rod is hollow, the connecting seat shell is communicated with the inside of inner empty guide rod through air vent.
[0014] Compared with the prior art, the utility model has the advantages that:
[0015] In the utility model, through the driving assembly, the cleaning assembly and the air guide assembly, the device can effectively remove the dust attached to the outside of the movable column, thereby significantly improving the service life of the sealing ring and reducing the wear speed.
[0016] Specifically, the device can realize an automatic cleaning process, use the spiral structure and the pneumatic system to scrape the dust on the outside of the movable column, and then blow off the dust through the blowing system, so that the probability of the sealing ring contacting the dust is reduced, the problem of cylinder jam caused by the dust is reduced, the normal work and long-term stability of the column are ensured, in addition, the device can automatically remove the dust on the body, facilitate cleaning again, improve the maintenance efficiency and the overall reliability of the equipment. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is the whole structure schematic diagram of the utility model;
[0018] Figure 2 It is the section structure schematic diagram of the cleaning assembly of the utility model;
[0019] Figure 3 It is the section structure schematic diagram of the internal thread cylinder of the utility model;
[0020] Figure 4 It is the section structure schematic diagram of the ring shell of the utility model;
[0021] Figure 5 It is the rubber ring piece structure schematic diagram of the utility model;
[0022] Figure 6 It is the section structure schematic diagram of the cylinder shell of the utility model.
[0023] In the drawing: 1, cylinder body;2, movable column;
[0024] 3, drive assembly; 31, machine shell; 32, servo motor; 33, battery; 34, threaded rod; 35, internally threaded cylinder;
[0025] 4, cleaning assembly; 41, ring shell; 42, rubber ring piece; 43, annular groove; 44, air injection hole; 45, connecting seat shell; 46, lower rubber ring; 47, air vent;
[0026] 5, air guide assembly; 51, fixed cylinder shell; 52, cylinder shell; 53, hollow guide rod; 54, limiting column; 55, first one-way valve; 56, second one-way valve; 57, filter plate. DETAILED DESCRIPTION
[0027] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0028] It should be noted that the terms used herein are only for the purpose of describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and furthermore, it should be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, operation, device, component and / or combination thereof.
[0029] Please refer to Figures 1-6 The present application provides a technical scheme:
[0030] The utility model provides a kind of precision casting mechanical column for mining machine, including cylinder 1 and live column 2, cylinder 1 inside is equipped with live column 2, cylinder 1 outside is fixedly connected with driving assembly 3, driving assembly 3 top is fixedly connected with cleaning assembly 4, cylinder 1 outside is fixedly connected with air guide assembly 5, driving assembly 3 includes shell 31, shell 31 inside is fixedly connected with servo motor 32, shell 31 inside is fixedly connected with battery 33, servo motor 32 main shaft end is fixedly connected with threaded rod 34, threaded rod 34 outside screw connection has internal thread cylinder 35, cleaning assembly 4 includes ring shell 41, ring shell 41 inside is fixedly connected with rubber ring piece 42, ring shell 41 inside is equipped with annular groove 43, ring shell 41 is equipped with air jet hole 44 on the inside close to annular groove 43, ring shell 41 left end is fixedly connected with connecting seat shell 45, ring shell 41 bottom is fixedly connected with lower rubber ring 46, connecting seat shell 45 lower end is equipped with air hole 47, air guide assembly 5 includes fixed cylinder shell 51, fixed cylinder shell 51 top is fixedly connected with cylinder barrel shell 52, cylinder barrel shell 52 inside is attached with limiting column 54 outside, limiting column 54 top is fixedly connected with inner hollow guide rod 53, limiting column 54 inside is fixedly connected with first check valve 55, fixed cylinder shell 51 front end's inside is fixedly connected with second check valve 56, fixed cylinder shell 51 is fixedly connected with filter plate 57 on the inside close to second check valve 56 front end, cylinder 1 outside is fixedly connected with shell 31 left side, cylinder 1 left side is fixedly connected with fixed cylinder shell 51 right side, internal thread cylinder 35 top is fixedly connected with ring shell 41 bottom, inner hollow guide rod 53 top is fixedly connected with connecting seat shell 45 bottom.
[0031] As further implementation of the scheme, the inside of shell 31 is hollow, the inside of shell 31 close to the main shaft of servo motor 32 is equipped with through hole, servo motor 32 is electrically connected with battery 33, the inside of internal thread cylinder 35 is equipped with threaded hole, it is convenient to move up and down by the drive of servo motor 32 to internal thread cylinder 35 to push the up and down movement effect of cleaning assembly 4;
[0032] As further implementation of the scheme, ring shell 41 is fixedly connected with lug seat on one end close to internal thread cylinder 35, the inside of ring shell 41 is equipped with cylindrical through hole, ring shell 41 is sleeved on the outside of rubber ring piece 42, rubber ring piece 42 is sleeved on the outside of live column 2, rubber ring piece 42 inside is attached with live column 2 outside, rubber ring piece 42 is installed between upper end air jet hole 44 and lower end air jet hole 44, the inside of cylinder 1 upper end is equipped with sealing ring, cylinder 1 is attached with live column 2 outside through sealing ring, by the movement of ring shell 41 and rubber ring piece 42, to achieve the effect of scraping dust on the outside of live column 2, by air blowing through air jet hole 44, to achieve the effect of removing dust on rubber ring piece 42, convenient for use again;
[0033] As a further implementation of the present scheme, the ring-shaped groove 43 is in the shape of a circular ring body, the ring-shaped groove 43 is in communication with the air injection hole 44, the air injection hole 44 penetrates the inner side of the ring shell 41, the air injection hole 44 is evenly and equidistantly arranged in the inside of the ring shell 41 in a circumferential shape, the inner side of the connecting seat shell 45 is hollow, the inner side of the ring shell 41 close to the connecting seat shell 45 is provided with a through hole, the ring-shaped groove 43 is in communication with the inner side of the connecting seat shell 45 through the through hole of the ring shell 41, the inner side of the inner hollow guide rod 53 is hollow, the connecting seat shell 45 is in communication with the inner side of the inner hollow guide rod 53 through the air vent 47, so that the air in the air guide assembly 5 can enter the inside of the ring-shaped groove 43 through the air vent 47, and then blow the gas uniformly to the rubber ring piece 42;
[0034] As a further implementation of the present scheme, the limiting column 54 is sealed by a sealing ring on the outside, the inner side of the cylinder shell 52 is hollow, the outer side of the limiting column 54 is attached to the inner side of the cylinder shell 52 through the sealing ring, the inner side of the cylinder shell 52 close to the fixed cylinder shell 51 is provided with a through hole, the inner side of the fixed cylinder shell 51 close to the through hole of the cylinder shell 52 is provided with a through hole, the inner side of the fixed cylinder shell 51 is hollow, the inner side of the cylinder shell 52 is in communication with the inner side of the fixed cylinder shell 51, which facilitates the suction of external air into the inside of the cylinder shell 52 when the limiting column 54 and the inner hollow guide rod 53 move upward, and facilitates the blowing of the air in the cylinder shell 52 from the inner hollow guide rod 53 when the limiting column 54 and the inner hollow guide rod 53 move downward, thereby achieving the effect of continuous cleaning.
[0035] Workflow: use in the environment of more dust, improve the service life of the sealing ring on the cylinder 1, when the piston rod 2 extends outside the cylinder 1, the outside of the piston rod 2 will adhere to the dust in the air, before the piston rod 2 is retracted inside the cylinder 1, the dust on the outside of the piston rod 2 is removed, before removal, the bottom end of the ring shell 41 is attached to the top end of the cylinder 1 through the lower rubber ring 46, press the button at the front end of the cylinder 1, the servo motor 32 is started by the battery 33, the threaded rod 34 is rotated by the servo motor 32, the inner thread cylinder 35 connected with the outside is moved up by the threaded rod 34, the cleaning assembly 4 is moved up as a whole by the inner thread cylinder 35, the ring shell 41 moves up by the connecting seat shell 45, the inner hollow guide rod 53 and the limiting column 54, the inner hollow guide rod 53 and the limiting column 54 are slidably connected inside the cylinder shell 52, which limits the movement of the cleaning assembly 4 as a whole, when the inner hollow guide rod 53 and the limiting column 54 move up, the first one-way valve 55 is closed under pressure, the inside of the cylinder shell 52 at the lower end of the limiting column 54 is underpressure under the sealing effect of the sealing ring outside the limiting column 54, the outside air enters the fixed cylinder shell 51 through the filter plate 57, the second one-way valve 56 is opened under the action of pressure, at this time the outside air enters the inside of the cylinder shell 52 through the fixed cylinder shell 51, in the process of moving up by the ring shell 41, the rubber ring piece 42 scrapes the dust on the outside of the piston rod 2, most of the dust scraped off is concentrated on the upper end of the rubber ring piece 42, most of the dust on the piston rod 2 can be cleaned by scraping off through the rubber ring piece 42, the spindle is reversed by starting the servo motor 32, and the piston rod 2 is retracted into the cylinder 1, the piston rod 2 moves down with the ring shell 41 at the same time, at this time the ring shell 41 moves down by the connecting seat shell 45, the inner hollow guide rod 53 and the limiting column 54, at this time the first one-way valve 55 is open, the second one-way valve 56 is closed, the air inside the cylinder shell 52 at the lower end of the limiting column 54 enters the air vent 47 inside the connecting seat shell 45 through the inner hollow guide rod 53, then enters the annular groove 43 inside through the air vent 47, and then is sprayed out from the air jet hole 44, the dust on the upper end of the rubber ring piece 42 can be blown off by blowing through the air jet hole 44, as described above, the device can remove the dust on the piston rod 2, greatly reducing the probability of the sealing ring of the cylinder 1 contacting the dust, improving the service life of the sealing ring of the cylinder 1, reducing the wear speed of the sealing ring of the cylinder 1, and the device can automatically remove the dust on the body, facilitating the cleaning of the dust on the piston rod 2 again.
[0036] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A precision-cast mechanical column for a mining machine, comprising a cylinder (1) and a plunger (2), characterized in that: A piston (2) is installed on the inner side of the cylinder body (1), a driving assembly (3) is fixedly connected to the outer side of the cylinder body (1), a cleaning assembly (4) is fixedly connected to the top of the driving assembly (3), and an air guide assembly (5) is fixedly connected to the outer side of the cylinder body (1); The driving assembly (3) includes a housing (31), a servo motor (32) is fixedly connected to the inner side of the housing (31), a battery (33) is fixedly connected to the inner side of the housing (31), a threaded rod (34) is fixedly connected to the end of the main shaft of the servo motor (32), and an inner threaded cylinder (35) is spirally connected to the outer side of the threaded rod (34). The cleaning assembly (4) includes an annular shell (41), a rubber ring (42) is fixedly connected to the inner side of the annular shell (41), an annular groove (43) is provided on the inner side of the annular shell (41), an air injection hole (44) is provided on the inner side of the annular groove (43), and a connecting seat shell (45) is fixedly connected to the left end of the annular shell (41). ), the bottom end of the annular shell (41) is fixedly connected to a lower rubber ring (46), the lower end of the connecting seat shell (45) is provided with an air vent (47), the air guide assembly (5) comprises a solid cylinder shell (51), the top end of the solid cylinder shell (51) is fixedly connected to a column shell (52), the inner side of the column shell (52) is fitted with the outer side of the limiting column (54), the top end of the limiting column (54) is fixedly connected to an inner hollow guide rod (53), the inner side of the limiting column (54) is fixedly connected to a first one-way valve (55), the inner side of the front end of the solid cylinder shell (51) is fixedly connected to a second one-way valve (56), and the inner side of the solid cylinder shell (51) near the front end of the second one-way valve (56) is fixedly connected to a filter plate (57); The outer side of the cylinder body (1) is fixedly connected to the left side of the casing (31), the left side of the cylinder body (1) is fixedly connected to the right side of the solid cylinder shell (51), the top end of the internal threaded cylinder (35) is fixedly connected to the bottom end of the annular shell (41), and the top end of the internal hollow guide rod (53) is fixedly connected to the bottom end of the connecting seat shell (45).
2. The precision-cast mechanical column for mining machinery according to claim 1, characterized in that: The inner side of the housing (31) is hollow, and a through hole is provided on the inner side of the housing (31) near the main shaft of the servo motor (32). The servo motor (32) is electrically connected to the battery (33). A threaded hole is provided through the inner side of the internal threaded barrel (35).
3. The precision cast mechanical column for mining machinery according to claim 1, characterized in that: An ear seat is fixedly connected to one end of the ring shell (41) close to the internal threaded cylinder (35), a cylindrical through hole is opened on the inner side of the ring shell (41), and the ring shell (41) is sleeved on the outer side of the rubber ring sheet (42).
4. The precision cast mechanical column for mining machinery according to claim 1, characterized in that: The rubber ring piece (42) is sleeved on the outer side of the piston (2), and the inner side of the rubber ring piece (42) is in close contact with the outer side of the piston (2). The rubber ring piece (42) is installed between the upper end jet hole (44) and the lower end jet hole (44). A sealing ring is installed on the inner side of the upper end of the cylinder body (1), and the cylinder body (1) is in contact with the outer side of the piston (2) through the sealing ring.
5. The precision cast mechanical column for mining machinery according to claim 1, characterized in that: The annular groove (43) is opened in the shape of a circular ring. The annular groove (43) is connected to the air injection hole (44). The air injection hole (44) passes through the inner side of the annular shell (41). The air injection holes (44) are opened in the inner side of the annular shell (41) in a circular shape and are evenly spaced.
6. The precision cast mechanical column for mining machinery according to claim 1, characterized in that: The inner side of the connecting seat shell (45) is hollow, the inner side of the annular shell (41) is provided with a through hole near the inner side of the connecting seat shell (45), the annular groove (43) is communicated with the inner side of the connecting seat shell (45) through the through hole of the annular shell (41), the inner side of the inner hollow guide rod (53) is hollow, and the connecting seat shell (45) is communicated with the inner side of the inner hollow guide rod (53) through the vent (47).
7. The precision-cast mechanical column for mining machinery according to claim 1, characterized in that: The outer side of the limiting column (54) is sealed with a sealing ring, the inner side of the column shell (52) is hollow, the outer side of the limiting column (54) is fitted with the inner side of the column shell (52) through the sealing ring, the inner side of the column shell (52) close to the solid cylinder shell (51) is provided with a through hole, the inner side of the solid cylinder shell (51) close to the through hole of the column shell (52) is provided with a through hole, the inner side of the solid cylinder shell (51) is hollow, and the inner side of the column shell (52) is connected to the inner side of the solid cylinder shell (51).