CN210034999U - Bidirectional forced lubricating system - Google Patents
Bidirectional forced lubricating system Download PDFInfo
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- CN210034999U CN210034999U CN201920628770.9U CN201920628770U CN210034999U CN 210034999 U CN210034999 U CN 210034999U CN 201920628770 U CN201920628770 U CN 201920628770U CN 210034999 U CN210034999 U CN 210034999U
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Abstract
The utility model discloses a two-way forced lubrication system, supply oil pipe, two-way forced oil supply mechanism and fuel feeding control module including first oil feed pipe, second, two-way forced oil supply mechanism includes two-way motor and two-way pump, fuel feeding control module includes PLC module, first contactor and second contactor, the output of first contactor and second contactor all meets with two-way motor's input, the input termination of PLC module has the setting just to control the two-way automatic switch of first contactor of gravity or the closed two-way dip angle detection sensor of second contactor in the coal-winning machine rocking arm. The utility model discloses simple structure, two-way force-feed lubrication mechanism can guarantee whether the coal-winning machine rocking arm rises or reduces, always can guarantee to arrange oil to higher position from lower position, guarantees the sufficient lubricating oil of coal-winning machine rocking arm transmission system, increases the life of gear and the stability of product, avoids the lubricating pump to suck empty.
Description
Technical Field
The utility model belongs to the technical field of the coal-winning machine is lubricated, especially, relate to a two-way forced lubrication system.
Background
The working face of a coal mine often has a large inclination angle, and when a rocker arm rises or falls during the process of coal mining on an up slope and a down slope, a higher gear part of the coal mining machine does not have enough lubricating oil, so that the gear is high in temperature and easy to damage, and the service life of the gear is greatly shortened. The unidirectional forced lubrication can only ensure that when the rocker arm rises under the horizontal condition of the machine body, the forced oil drainage from a low position to a high position can ensure sufficient lubrication; when the rocker arm descends and the planet head is lower than the rocker arm cutting motor, the lubricating of oil discharging from a low position to a high position cannot be ensured; the unidirectional forced lubrication bidirectional pump works all the time, the suction phenomenon often occurs, and the service life of the forced lubrication pump is greatly reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that not enough among the above-mentioned prior art is directed against, provide a two-way force-feed lubrication system, its simple structure, reasonable in design, convenient to use, two-way force-feed lubrication mechanism can guarantee whether the coal-winning machine rocking arm rises or reduces, always can guarantee to arrange the oil to higher position from lower position, guarantees the sufficient lubricating oil of coal-winning machine rocking arm transmission system, increases the life of gear and the stability of product, avoids the lubricating pump to suck in the air, and the practicality is strong.
In order to solve the technical problem, the utility model discloses a technical scheme is: a bidirectional forced lubrication system is characterized in that: the bidirectional forced oil supply mechanism comprises a bidirectional motor arranged in the middle of the rocker arm of the coal mining machine and a bidirectional pump in transmission connection with an output shaft of the bidirectional motor, one oil port of the bidirectional pump is connected with one end of the first oil supply pipe, and the other oil port of the bidirectional pump is connected with one end of the second oil supply pipe;
the oil supply control module comprises a PLC module, a first contactor and a second contactor, wherein the first contactor is used for controlling the forward rotation of the two-way motor, the second contactor is used for controlling the reverse rotation of the two-way motor, the output ends of the first contactor and the second contactor are connected with the input end of the two-way motor, the input end of the PLC module is connected with a gravity two-way automatic switch or an inclination angle detection sensor which is arranged on a rocker arm of a coal mining machine and used for controlling the closing of the first contactor or the second contactor, and the gravity two-way automatic switch comprises a shell, a first switch arranged at one end of the shell and a second switch arranged at the.
The bidirectional forced lubricating system is characterized in that: the coal mining machine rocker arm is provided with a first lubricating oil port near the planetary head, the coal mining machine rocker arm is provided with a second lubricating oil port near the cutting motor, the other end of the first oil supply pipe is provided with a first elbow, the first elbow is provided with a first spiral joint, the other end of the second oil supply pipe is provided with a second elbow, the second elbow is provided with a second spiral joint, the first oil supply pipe is connected with the first lubricating oil port through the first elbow and the first spiral joint, and the second oil supply pipe is connected with the second lubricating oil port through the second elbow and the second spiral joint.
The bidirectional forced lubricating system is characterized in that: the shell is internally provided with a mounting plate arranged along the length direction of the shell, a copper rolling ball is placed on the mounting plate, the first switch is arranged at one end of the mounting plate and one end of the shell, the second switch is arranged at the other end of the mounting plate and the other end of the shell, the first switch comprises a first contact terminal arranged at one end of the mounting plate and a second contact terminal arranged at one end of the shell and positioned right above the first contact terminal, the second switch comprises a third contact terminal arranged at the other end of the mounting plate and a fourth contact terminal arranged at the other end of the shell and positioned right above the third contact terminal, the distance between the first contact terminal and the second contact terminal is equal to the outer diameter of the copper rolling ball, the distance between the third contact terminal and the fourth contact terminal is equal to the outer diameter of the copper, and the first contact terminal and the third contact terminal are both connected with the input end of the PLC module, and the second contact terminal and the fourth contact terminal are connected with an L + pin of the PLC module.
The bidirectional forced lubricating system is characterized in that: the middle part of mounting panel is equipped with adjusting screw, the bottom of casing is provided with the base, the one end that adjusting screw stretches out the mounting panel middle part is provided with the arch, the base is worn out to adjusting screw's the other end.
The bidirectional forced lubricating system is characterized in that: the inclination angle detection sensor is an LCA316 digital single-axis inclination angle sensor.
The bidirectional forced lubricating system is characterized in that: and the input end of the PLC module is connected with an oil product sensor.
The bidirectional forced lubricating system is characterized in that: be provided with in the casing and supply the rolling arc recess of copper spin, just the arc recess is located the upper portion of mounting panel, second contact terminal and fourth contact terminal are installed respectively both ends in the arc recess, first contact terminal and third contact terminal are installed respectively the both ends of mounting panel upper surface.
The bidirectional forced lubricating system is characterized in that: the first contact terminal, the second contact terminal, the third contact terminal and the fourth contact terminal are all copper sheets or copper columns.
The bidirectional forced lubricating system is characterized in that: the casing is provided with the rectangle recess that supplies the mounting panel installation, the both sides of casing are provided with the mounting hole.
Compared with the prior art, the utility model has the following advantage:
1. simple structure, reasonable in design and simple and convenient, the input cost is lower in the installation.
2. The adopted first oil supply pipe and the second oil supply pipe are both connected with a bidirectional pump, the bidirectional pump is in transmission connection with a bidirectional motor, the bidirectional motor rotates forward and backward to drive the bidirectional pump to work, and when the rocker arm of the coal mining machine is lowered, lubricating oil is supplied to the position, close to the cutting motor, of the rocker arm of the coal mining machine through the first oil supply pipe and the second oil supply pipe in sequence; when the rocker arm of the coal mining machine is lifted, lubricating oil is supplied to the position, close to the planetary head, of the rocker arm of the coal mining machine through the second oil supply pipe and the first oil supply pipe in sequence, oil can be discharged from the lower position to the higher position, enough lubricating oil in a transmission system of the rocker arm of the coal mining machine is guaranteed, the service life of the gear is prolonged, and the stability of the product is improved.
3. The adopted gravity bidirectional automatic switch is used for the lifting and lowering processes of the rocker arm of the coal mining machine, the gravity bidirectional automatic switch selects the first switch or the second switch to be switched on, the first switch or the second switch is switched on and outputs a signal to the PLC module, the PLC module controls the first contactor or the second contactor to be closed, the bidirectional motor is enabled to rotate forward and backward, and oil is discharged from a lower part to a higher part.
4. The inclination angle detection sensor is used for detecting the inclination angle of the rocker arm of the coal mining machine and sending the inclination angle to the PLC module, the PLC module judges the received inclination angle, the PLC module controls the first contactor or the second contactor to be closed, the bidirectional motor is rotated positively and negatively, oil is discharged from the lower part to the higher part, and sufficient lubricating oil of a transmission system of the rocker arm of the coal mining machine is guaranteed.
To sum up, the utility model discloses simple structure, reasonable in design, convenient to use, two-way force-feed lubrication mechanism can guarantee whether the coal-winning machine rocking arm rises or reduces, always can guarantee to arrange oil to higher position from lower position, guarantees the sufficient lubricating oil of coal-winning machine rocking arm transmission system, increases the life of gear and the stability of product, avoids the lubricating pump to suck up, and the practicality is strong.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic structural view of the present invention (excluding the first oil supply pipe and the second oil supply pipe).
Fig. 2 is a schematic structural view of the two-way forced oil supply mechanism, the first oil supply pipe and the second oil supply pipe of the present invention.
Fig. 3 is a schematic block diagram of the circuit of the present invention.
Fig. 4 is a schematic structural diagram of the gravity bidirectional automatic switch of the present invention.
Fig. 5 is a sectional view a-a of fig. 4.
Fig. 6 is the circuit connection schematic diagram of the gravity bidirectional automatic switch, the inclination angle sensor, the PLC module, the first contactor and the second contactor of the present invention.
Fig. 7 is a main control circuit diagram of the present invention.
Fig. 8 is a schematic diagram of the circuit connection between the first contactor, the second contactor and the bidirectional motor according to the present invention.
Description of reference numerals:
1-1 — a first helical connector; 1-2-a second helical connector; 2-1-a first elbow;
2-second elbow; 3-1 — a first oil supply pipe; 3-2-a second oil supply pipe;
4-a bidirectional pump; 5-a bidirectional motor; 6-1-shell;
6-2-copper rolling balls; 6-3-mounting holes; 6-4-adjusting screw;
6-5-base; 6-second contact terminal; 6-7-a first contact terminal;
6-8-fourth contact terminal; 6-9-third contact terminal; 6-10-mounting plate;
7-planetary head; 8, cutting a motor; 9-a PLC module;
10-tilt angle detection sensor; 11-a first lubricating oil port; 12-a second lubricating oil port;
13-shearer rocker arm; 15-oil sensor; 16 — a first contactor;
17-a second contactor.
Detailed Description
As shown in fig. 1, 2 and 3, the bidirectional forced lubricating system comprises a first oil supply pipe 3-1 installed at a position of a rocker arm 13 of the coal mining machine close to a planetary head 7, a second oil supply pipe 3-2 installed at a position of the rocker arm 13 of the coal mining machine close to a cutting motor 8, a bidirectional forced oil supply mechanism connected with the first oil supply pipe 3-1 and the second oil supply pipe 3-2, and an oil supply control module for controlling the bidirectional forced oil supply mechanism, wherein the bidirectional forced oil supply mechanism comprises a bidirectional motor 5 installed in the middle of the rocker arm 13 of the coal mining machine and a bidirectional pump 4 in transmission connection with an output shaft of the bidirectional motor 5, one oil port of the bidirectional pump 4 is connected with one end of the first oil supply pipe 3-1, and the other oil port of the bidirectional pump 4 is connected with one end of the second oil supply pipe 3-2;
the oil supply control module comprises a PLC module 9, a first contactor 16 used for controlling the forward rotation of the two-way motor 5 and a second contactor 17 used for controlling the reverse rotation of the two-way motor 5, the output ends of the first contactor 16 and the second contactor 17 are connected with the input end of the two-way motor 5, the input end of the PLC module 9 is connected with a gravity two-way automatic switch or an inclination angle detection sensor 10 which is arranged on a rocker arm 13 of the coal mining machine and controls the first contactor 16 or the second contactor 17 to be closed, and the gravity two-way automatic switch comprises a shell 6-1, a first switch arranged at one end of the shell 6-1 and a second switch arranged at the other end of the shell 6-1.
As shown in fig. 1 and 2, in the present embodiment, the shearer rocker arm 13 is provided with a first lubricating oil port 11 near the planetary head 7, a second lubricating oil port 12 is arranged on the rocker arm 13 of the coal mining machine close to the cutting motor 8, a first elbow 2-1 is arranged at the other end of the first oil supply pipe 3-1, a first spiral joint 1-1 is arranged on the first elbow 2-1, a second elbow 2-2 is arranged at the other end of the second oil supply pipe 3-2, the second elbow 2-2 is provided with a second spiral joint 1-2, the first oil supply pipe 3-1 is connected with a first lubricating oil port 11 through the first elbow 2-1 and the first spiral joint 1-1, and the second oil supply pipe 3-2 is connected with a second lubricating oil port 12 through a second elbow 2-2 and a second spiral joint 1-2.
In the embodiment, as shown in fig. 4, a mounting plate 6-10 arranged along the length direction of a housing 6-1 is arranged in the housing 6-1, a copper rolling ball 6-2 is arranged on the mounting plate 6-10, the first switch is arranged at one end of the mounting plate 6-10 and the housing 6-1, the second switch is arranged at the other end of the mounting plate 6-10 and the housing 6-1, the first switch comprises a first contact terminal 6-7 arranged at one end of the mounting plate 6-10 and a second contact terminal 6-6 arranged at one end of the housing 6-1 and positioned right above the first contact terminal 6-7, the second switch comprises a third contact terminal 6-9 arranged at the other end of the mounting plate 6-10 and a fourth contact terminal 6-8 arranged at the other end of the housing 6-1 and positioned right above the third contact terminal 6-9, the distance between the first contact terminal 6-7 and the second contact terminal 6-6 is equal to the outer diameter of the copper rolling ball 6-2, the distance between the third contact terminal 6-9 and the fourth contact terminal 6-8 is equal to the outer diameter of the copper rolling ball 6-2, the first contact terminal 6-7 and the third contact terminal 6-9 are connected with the input end of the PLC module 9, and the second contact terminal 6-6 and the fourth contact terminal 6-8 are connected with the L + pin of the PLC module 9.
In the embodiment, as shown in fig. 5, an adjusting screw 6-4 is arranged in the middle of the mounting plate 6-10, a base 6-5 is arranged at the bottom of the housing 6-1, a protrusion is arranged at one end of the adjusting screw 6-4 extending out of the middle of the mounting plate 6-10, and the other end of the adjusting screw 6-4 penetrates through the base 6-5.
In this embodiment, the tilt angle detecting sensor 10 is an LCA316 digital single-axis tilt angle sensor.
As shown in fig. 3, in this embodiment, an oil sensor 15 is connected to an input end of the PLC module 9.
In this embodiment, an arc-shaped groove for rolling the copper rolling ball 6-2 is formed in the housing 6-1, the arc-shaped groove is located on the upper portion of the mounting plate 6-10, the second contact terminal 6-6 and the fourth contact terminal 6-8 are respectively mounted at two ends of the arc-shaped groove, and the first contact terminal 6-7 and the third contact terminal 6-9 are respectively mounted at two ends of the upper surface of the mounting plate 6-10.
In this embodiment, the first contact terminal 6-7, the second contact terminal 6-6, the third contact terminal 6-9 and the fourth contact terminal 6-8 are all copper sheets or copper columns.
In this embodiment, a rectangular groove for mounting the mounting plate 6-10 is formed in the housing 6-1, and mounting holes 6-3 are formed in two sides of the housing 6-1.
In this embodiment, one end of the adjusting screw 6-4 is provided with a protrusion, so that one end of the adjusting screw 6-4 is limited in the process of rotating the adjusting screw 6-4, and thus it is ensured that one end of the adjusting screw 6-4 drives the middle of the mounting plate 6-10 to be recessed.
In this embodiment, the rectangular groove is provided for facilitating the installation of the mounting plate 6-10, and for facilitating the penetration of the adjusting screw 6-4 and the screwing adjustment of the adjusting screw 6-4.
In the embodiment, the arc-shaped groove is arranged to be matched with the mounting plate 6-10 to form a space for the copper rolling ball 6-2 to roll, so that the sliding of the copper rolling ball 6-2 along the width direction of the mounting plate 6-10 is effectively limited, the copper rolling ball 6-2 slides along the length direction of the mounting plate 6-10, and the first switch and the second switch are ensured to be accurately switched on or off.
In the embodiment, the first spiral joint 1-1 is arranged to connect the first oil supply pipe 3-1 and the first lubricating oil port 11, so that the first oil supply pipe 3-1 is communicated with an oil cavity on a rocker arm 13 of a coal mining machine, and the first spiral joint is detachably mounted and convenient to overhaul; the second spiral connector 1-2 is arranged to connect the second oil supply pipe 3-2 and the second lubricating oil port 12, so that the second oil supply pipe 3-2 is communicated with an oil cavity on a rocker arm 13 of the coal mining machine, and the second spiral connector can be detachably mounted and is convenient to overhaul.
In the embodiment, the first elbow 2-1 is arranged for connecting the first oil supply pipe 3-1 and the first spiral joint 1-1 to realize right-angle transition; the second elbow 2-2 is arranged for connecting the second oil supply pipe 3-2 and the second spiral joint 1-2 conveniently to realize right-angle transition.
In the embodiment, the copper rolling ball 6-2 is arranged to roll along the mounting plate 6-10 by virtue of gravity, so that when the copper rolling ball rolls to one end of the mounting plate 6-10, the copper rolling ball is just positioned between the first contact terminal 6-7 and the second contact terminal 6-6 and is in contact with the first contact terminal 6-7 and the second contact terminal 6-6, so that the first contact terminal 6-7 is communicated with the second contact terminal 6-6, and the switch conduction effect is realized; and when the mounting plate is rolled to the other end of the mounting plate 6-10, the mounting plate is just positioned between the third contact terminal 6-9 and the fourth contact terminal 6-8 and is contacted with the third contact terminal 6-9 and the fourth contact terminal 6-8, so that the third contact terminal 6-9 and the fourth contact terminal 6-8 are communicated, and the switch conduction effect is realized.
In the embodiment, the adjusting screw 6-4 is arranged for facilitating manual rotation, and the middle of the mounting plate 6-10 is driven to move towards the direction close to the base 6-5 in the process of rotating the adjusting screw 6-4, so that the middle curvature of the mounting plate 6-10 is adjusted, and the copper rolling ball 6-2 is suitable for rolling required by lifting and lowering in different degrees.
In this embodiment, in specific implementation, the PLC module 9 is a PLC module of siemens S7-300.
In this embodiment, in specific implementation, the bidirectional motor 5 is a three-phase ac motor, and the bidirectional pump 4 is an SNBY5/1.6 bidirectional lubrication pump.
In this embodiment, in an actual connection process, an output shaft of the three-phase ac motor is in transmission connection with a rotating shaft of the SNBY5/1.6 bidirectional lubrication pump through a coupler.
In the embodiment, the LCA316 digital single-axis tilt sensor is adopted, because the LCA316 digital single-axis tilt sensor has small volume and low cost, and can output the current attitude tilt in real time, the use is simple, the external electromagnetic interference resistance is strong, and the impact and vibration bearing capacity is strong; in addition, the inclination unit and the capacitance micro pendulum bob principle are adopted, the inclination unit is inclined when the rocker arm 13 of the coal mining machine is inclined by utilizing the earth gravity principle, the earth gravity generates a gravity component on the corresponding pendulum bob, the corresponding capacitance is changed, and the inclination angle is obtained after the capacitance change is amplified, filtered and converted.
As shown in fig. 6, in the present embodiment, during an actual connection process, the TXD pin of the LCA316 digital single-axis tilt sensor is connected to the RXD pin of the PLC module 9, and the RXD pin of the LCA316 digital single-axis tilt sensor is connected to the TXD pin of the PLC module 9.
In this embodiment, the oil sensor 15 is an YFF-2 oil quality on-line monitoring sensor, which is extremely sensitive to changes in oil quality, and can continuously monitor the quality index of the oil in real time, provide 360-degree omnibearing real-time on-line monitoring for the oil, and provide reliable and powerful guarantee for the continuous and reliable operation of the rocker arm device of the coal mining machine.
As shown in fig. 6, in this embodiment, in the actual connection process, the 485A pin of the oil product sensor 15 is connected to the 485A pin of the PLC module 9, and the 485B pin of the oil product sensor 15 is connected to the 485B pin of the PLC module 9.
As shown in fig. 6, in the present embodiment, in an actual connection process, the first contact terminal 6-7 is connected to an I0.0 pin of the PLC module 9, the third contact terminal 6-9 is connected to an I0.1 pin of the PLC module 9, the second contact terminal 6-6 and the fourth contact terminal 6-8 are both connected to an L + pin of the PLC module 9, and a 1M pin and an M pin of the PLC module 9 are both grounded.
As shown in fig. 6, in the present embodiment, during the actual connection process, the first contactor 16 is a contactor KM1, the second contactor 17 is a contactor KM2, one end of the coil of the contactor KM1 is connected to the pin Q0.0 of the PLC module 9, one end of the coil of the contactor KM2 is connected to the pin Q0.1 of the PLC module 9, the other end of the coil of the contactor KM1 and the other end of the coil of the contactor KM2 are connected to one end of the AC220V power supply, and the other end of the AC220V power supply is connected to the pin 1L of the PLC module 9.
As shown in fig. 8, in the present embodiment, in the actual connection process, one end of the normally open contact of the contactor KM1 and one end of the normally open contact of the contactor KM2 are both connected to the output end of the 380V power supply, and the other end of the normally open contact of the contactor KM1 and the other end of the normally open contact of the contactor KM2 are both connected to the input end of the bidirectional motor 5.
As shown in fig. 7, in the present embodiment, in an actual connection process, the first switch is a switch S1, the second switch is a switch S2, the L1 phase line outgoing end of the 380V power supply is divided into four paths, the first path is connected to one end of the switch S1, the second path is connected to one end of the normally open contact of the contactor KM1, the other end of the normally open contact of the contactor KM1 and the other end of the switch S1 are connected in parallel and then connected to one end of the normally closed contact of the contactor KM2, and the other end of the normally closed contact of the contactor KM2 is connected to the coil of the contactor KM1 and then connected to the L2 phase line of the 380V power supply; the third path is connected with one end of a switch S2, the fourth path is connected with one end of a normally open contact of a contactor KM2, the other end of the normally open contact of the contactor KM2 is connected with the other end of the switch S2 in parallel and then connected with one end of a normally closed contact of a contactor KM1, and the other end of the normally closed contact of the contactor KM1 is connected with a coil of a contactor KM2 and then connected with an L2 phase line of a 380V power supply.
The utility model discloses during the specific use, control the specific process as following of two-way motor 5 positive and negative rotation when adopting inclination to detect sensor 10: the inclination angle detection sensor 10 detects the inclination angle of the rocker arm 13 of the coal mining machine and sends the inclination angle to the PLC module 9, the PLC module 9 judges the received inclination angle, if the inclination angle of the rocker arm 13 of the coal mining machine is positive, namely the planetary head 7 is at a high position relative to the cutting motor 8 and the inclination angle of the rocker arm 13 of the coal mining machine is greater than an angle set value, the PLC module 9 controls the first contactor 16 to be closed to realize the forward rotation of the bidirectional motor 5, the bidirectional pump 4 is rotated forward, lubricating oil is extracted from the low cutting motor 8 of the rocker arm 13 of the coal mining machine and is injected into a high-position central gear set part at the planetary head 7 through the second oil supply pipe 3-2 and the first oil supply pipe 3-1, and each gear; if the inclination angle of the rocker arm 13 of the coal mining machine is negative, namely the planetary head 7 is at a low position relative to the cutting motor 8 and the inclination angle of the rocker arm 13 of the coal mining machine is larger than an angle set value, the PLC module 9 controls the second contactor 17 to be closed to realize the reverse rotation of the bidirectional motor 5, the bidirectional pump 4 reverses, lubricating oil is extracted from the low-position planetary head 7 of the rocker arm 13 of the coal mining machine and is injected into the position of the high-position cutting motor 8 through the first oil supply pipe 3-1 and the second oil supply pipe 3-2, and it is ensured that each gear in a transmission system can be sufficiently lubricated.
When the gravity bidirectional automatic switch is adopted to control the bidirectional motor 5 to rotate forwards and backwards, the specific process is as follows: in the process of lifting and lowering the planet head 7 of the rocker arm 13 of the coal mining machine, the mounting plate 6-10 is driven to lift and lower, so that the copper rolling ball 6-2 moves along the length direction of the mounting plate 6-10, when the planet head 7 of the rocker arm 13 of the coal mining machine is lowered, namely the copper rolling ball 6-2 rolls to one end of the mounting plate 6-10, the copper rolling ball 6-2 enables the first contact terminal 6-7 to be in contact with the second contact terminal 6-6, so that the first switch S1 is closed, a signal output by the first switch S1 is sent to the PLC module 9, the PLC module 9 controls the coil of the first contactor 16 to be electrified, the normally open contact of the first contactor 16 is closed, the normally closed contact of the first contactor 16 is disconnected, self-locking is realized, a 380V power supply is ensured to supply power to the bidirectional; when the planet head 7 of the rocker arm 13 of the coal mining machine rises, namely the copper rolling ball 6-2 rolls to the other end of the mounting plate 6-10, the copper rolling ball 6-2 enables the third contact terminal 6-9 and the fourth contact terminal 6-8 to be contacted, so that the second switch S2 is closed, a signal output by the second switch S2 is sent to the PLC module 9, the PLC module 9 controls the coil of the second contactor 17 to be electrified, the normally open contact of the second contactor 17 is closed to realize self-locking, the normally closed contact of the second contactor 17 is opened, the coil of the second contactor 17 is electrified, a 380V power supply supplies power to the bidirectional motor 5 in reverse direction, the bidirectional motor 5 rotates in reverse direction to realize oil drainage from a lower part to a higher part, therefore, the bidirectional forced lubrication mechanism can ensure that oil drainage from the lower part to the higher part is always ensured no matter whether the rocker arm of the coal mining machine rises or falls, avoid the lubricating pump to suck up, increase the life of gear and lubricating pump and the stability of product, the practicality is strong.
The above, only be the utility model discloses a preferred embodiment, it is not right the utility model discloses do any restriction, all according to the utility model discloses the technical entity all still belongs to any simple modification, change and the equivalent structure change of doing above embodiment the utility model discloses technical scheme's within the scope of protection.
Claims (9)
1. A bidirectional forced lubrication system is characterized in that: comprises a first oil supply pipe (3-1) arranged at the position of a rocker arm (13) of a coal mining machine close to a planetary head (7), a second oil supply pipe (3-2) arranged at the position of the rocker arm (13) of the coal mining machine close to a cutting motor (8), a bidirectional forced oil supply mechanism connected with the first oil supply pipe (3-1) and the second oil supply pipe (3-2) and an oil supply control module for controlling the bidirectional forced oil supply mechanism, the bidirectional forced oil supply mechanism comprises a bidirectional motor (5) arranged in the middle of a rocker arm (13) of the coal mining machine and a bidirectional pump (4) in transmission connection with an output shaft of the bidirectional motor (5), an oil port of the bidirectional pump (4) is connected with one end of the first oil supply pipe (3-1), the other oil port of the bidirectional pump (4) is connected with one end of a second oil supply pipe (3-2);
the oil supply control module comprises a PLC module (9), a first contactor (16) used for controlling the forward rotation of the two-way motor (5) and a second contactor (17) used for controlling the reverse rotation of the two-way motor (5), the output ends of the first contactor (16) and the second contactor (17) are connected with the input end of the two-way motor (5), the input end of the PLC module (9) is connected with a gravity two-way automatic switch or an inclination angle detection sensor (10) which is arranged on a rocker arm (13) of a coal mining machine and controls the closing of the first contactor (16) or the second contactor (17), and the gravity two-way automatic switch comprises a shell (6-1), a first switch arranged at one end of the shell (6-1) and a second switch arranged at the other end of the shell (6-1).
2. A bidirectional forced lubrication system as recited in claim 1, wherein: the coal mining machine is characterized in that a first lubricating oil port (11) is formed in the position, close to the planetary head (7), of the coal mining machine rocker arm (13), a second lubricating oil port (12) is formed in the position, close to the cutting motor (8), of the coal mining machine rocker arm (13), a first elbow (2-1) is arranged at the other end of the first oil supply pipe (3-1), a first spiral joint (1-1) is arranged on the first elbow (2-1), a second elbow (2-2) is arranged at the other end of the second oil supply pipe (3-2), a second spiral joint (1-2) is arranged on the second elbow (2-2), the first oil supply pipe (3-1) is connected with the first lubricating oil port (11) through the first elbow (2-1) and the first spiral joint (1-1), and the second oil supply pipe (3-2) is connected with the oil supply pipe (11) through the second elbow (2-2) and the second spiral joint (1-2) The second lubricating oil port (12) is connected.
3. A bidirectional forced lubrication system as recited in claim 1, wherein: the copper ball-type switch is characterized in that a mounting plate (6-10) arranged along the length direction of the shell (6-1) is arranged in the shell (6-1), a copper ball (6-2) is placed on the mounting plate (6-10), the first switch is arranged at one end of the mounting plate (6-10) and one end of the shell (6-1), the second switch is arranged at the other end of the mounting plate (6-10) and the shell (6-1), the first switch comprises a first contact terminal (6-7) arranged at one end of the mounting plate (6-10) and a second contact terminal (6-6) arranged at one end of the shell (6-1) and positioned right above the first contact terminal (6-7), and the second switch comprises a third contact terminal (6-9) arranged at the other end of the mounting plate (6-10) and a third contact terminal (6-1) arranged at the other end of the shell (6-1) 9) The distance between the first contact terminal (6-7) and the second contact terminal (6-6) is equal to the outer diameter of the copper rolling ball (6-2), the distance between the third contact terminal (6-9) and the fourth contact terminal (6-8) is equal to the outer diameter of the copper rolling ball (6-2), the first contact terminal (6-7) and the third contact terminal (6-9) are connected with the input end of the PLC module (9), and the second contact terminal (6-6) and the fourth contact terminal (6-8) are connected with the L + pin of the PLC module (9).
4. A bidirectional forced lubrication system as recited in claim 3, wherein: adjusting screws (6-4) are arranged in the middle of the mounting plate (6-10), a base (6-5) is arranged at the bottom of the shell (6-1), a protrusion is arranged at one end, extending out of the middle of the mounting plate (6-10), of each adjusting screw (6-4), and the base (6-5) is penetrated out of the other end of each adjusting screw (6-4).
5. A bidirectional forced lubrication system as recited in claim 1, wherein: the inclination angle detection sensor (10) is an LCA316 digital single-axis inclination angle sensor.
6. A bidirectional forced lubrication system as recited in claim 1, wherein: the input end of the PLC module (9) is connected with an oil product sensor (15).
7. A bidirectional forced lubrication system as recited in claim 3, wherein: an arc-shaped groove for rolling the copper rolling ball (6-2) is formed in the shell (6-1), the arc-shaped groove is located on the upper portion of the mounting plate (6-10), the second contact terminal (6-6) and the fourth contact terminal (6-8) are respectively installed at two ends of the arc-shaped groove, and the first contact terminal (6-7) and the third contact terminal (6-9) are respectively installed at two ends of the upper surface of the mounting plate (6-10).
8. A bidirectional forced lubrication system as recited in claim 3, wherein: the first contact terminal (6-7), the second contact terminal (6-6), the third contact terminal (6-9) and the fourth contact terminal (6-8) are all copper sheets or copper columns.
9. A bidirectional forced lubrication system as recited in claim 3, wherein: the shell (6-1) is internally provided with a rectangular groove for mounting the mounting plate (6-10), and the two sides of the shell (6-1) are provided with mounting holes (6-3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920628770.9U CN210034999U (en) | 2019-05-05 | 2019-05-05 | Bidirectional forced lubricating system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920628770.9U CN210034999U (en) | 2019-05-05 | 2019-05-05 | Bidirectional forced lubricating system |
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| CN210034999U true CN210034999U (en) | 2020-02-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115325414A (en) * | 2022-06-28 | 2022-11-11 | 太重煤机有限公司 | Intelligent forced lubricating device for rocker arm of coal mining machine and using method thereof |
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2019
- 2019-05-05 CN CN201920628770.9U patent/CN210034999U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115325414A (en) * | 2022-06-28 | 2022-11-11 | 太重煤机有限公司 | Intelligent forced lubricating device for rocker arm of coal mining machine and using method thereof |
| CN115325414B (en) * | 2022-06-28 | 2024-05-14 | 太重煤机有限公司 | Intelligent forced lubrication device for rocker arm of coal mining machine and use method thereof |
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