A swing-type adjustable coal leakage nozzle and its opening, closing and locking control method

Abstract

The present invention discloses a swing-type adjustable coal leakage nozzle and its opening, closing and locking control method, comprising a coal discharge channel inclined at an inclination angle a, an adjusting baffle provided at the coal discharge port at the bottom end of the coal discharge channel, the adjusting baffle being hingedly provided at the upper edge of the coal discharge port, a first mechanical lock provided on the outer side surface of the swing end of the adjusting baffle, the first mechanical lock being controlled to open and close by a first power device, a second mechanical lock being further provided on the outer side surface of the adjusting baffle, the second mechanical lock being controlled to open and close by a second power device, the first mechanical lock and the second mechanical lock being linked to control the rotation of the adjusting baffle to realize rotary opening and closing. The present invention realizes the opening and closing of the coal leakage nozzle and the locking in the normally open and normally closed state through the linkage control of double mechanical locks, the rotary opening and closing of the coal leakage nozzle realizes the adjustment of the coal leakage nozzle to control the coal discharge amount during the excavation period, the coal discharge demand of the fully mechanized mining face can be met in the normally open state, and the locking in the normally open and normally closed state can ensure the safety of the coal mining operation.

Description

Technical Field

[0001] The invention relates to the field of coal leakage nozzles, in particular to a swing-type adjustable coal leakage nozzle and an opening, closing and locking control method thereof. Background Art

[0002] At present, in coal mining operations, in order to facilitate construction and meet the coal discharge volume of the comprehensive mining working face in the later stage, the coal nozzles installed in the underground coal tunnels are generally large in diameter and large inclination. However, in the early stage of excavation, the amount of coal is small, and the use of large coal nozzles is difficult to control, and coal is often spilled, which increases the workload of cleaning the spilled coal around the belt. In order to reduce the amount of coal spilled during excavation, small coal nozzles are generally installed first to control the coal discharge volume, and then replaced during comprehensive mining. Repeated construction is required, the operation is complicated, and the workload is large. Summary of the invention

[0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a swing-type adjustable coal nozzle and an opening, closing and locking control method thereof. The swing-type coal nozzle controlled by a double mechanical lock linkage can adjust and control the amount of coal released during excavation, reduce the amount of coal spilled during excavation, and meet the coal releasing requirements of the comprehensive mining working face.

[0004] Technical solution: To achieve the above-mentioned purpose, the present invention provides a swing-type adjustable coal leakage nozzle and its opening, closing and locking control method, comprising a coal discharge channel inclined at an inclination angle a, an adjusting baffle is arranged at the coal discharge port at the bottom end of the coal discharge channel, the adjusting baffle is hingedly arranged at the upper edge of the coal discharge port, a first mechanical lock is arranged on the outer side of the swing end of the adjusting baffle, the first mechanical lock is controlled to open and close by a first power device, a second mechanical lock is further arranged on the outer side of the adjusting baffle, the second mechanical lock is controlled to open and close by a second power device, and the first mechanical lock and the second mechanical lock are linked to control the rotation of the adjusting baffle;

[0005] The first mechanical lock comprises a first hinge seat fixedly arranged relative to the adjusting partition, a gusset plate is hingedly arranged on the first hinge seat, the gusset plate is controlled to rotate by the first power device, the gusset plate is fitted and buckled with a limit bar for locking when normally open, and the limit bar is located on the swing path of the swing end of the adjusting partition;

[0006] The second mechanical lock includes a locking link, one end of which is hinged to the adjusting partition via a second hinge seat, the other end of which is fixedly connected to a connecting shaft, the connecting shaft is connected to the second power device via a single arm, one end of the single arm is fixedly connected to the connecting shaft, the other end of the single arm is hinged to the output end of the second power device, and the connecting shaft is rotatable relative to the axial hole of the fixed seat.

[0007] Furthermore, a second mechanical lock is provided on each side edge of the adjusting partition, the fixed ends of the locking rods of the two second mechanical locks are connected to the same connecting shaft, and the fixing seats corresponding to each second mechanical lock are respectively arranged on the side baffles extending from the side walls of the coal discharge channel on the same side, and the limit bars are horizontally mounted on the side baffles on both sides.

[0008] Furthermore, the locking connecting rod comprises a connecting rod body assembled from a plurality of plate parts, and a locking block is provided at a hinge of the connecting rod body.

[0009] Furthermore, the buckle plate is rotatably arranged on one side of the first hinge seat, a guide hole is opened in the middle of the first hinge seat, a push rod is slidably arranged in the guide hole, the push rod pushes the buckle plate to rotate, and the push rod is driven to slide by the first power device.

[0010] Furthermore, both the first power device and the second power device use cylinders.

[0011] Furthermore, the locking method for closing the coal nozzle is as follows: during the process of rotating the adjusting baffle to close the coal outlet, the locking link is firstly driven to straighten by the second power device, and then the locking block is used to lock the link body to maintain the locking link straightening, and the straightened locking link is used to support the adjusting baffle to realize the closing and locking of the coal nozzle.

[0012] Furthermore, the method for swinging the coal nozzle is as follows: first, the single arm is driven to rotate by the second power device, thereby driving the connecting shaft to rotate, and then driving the locking link and the fixed section of the connecting shaft to rotate, so that the locking link is bent and folded, and the bending and folding process of the locking link is utilized to drive the adjusting partition to rotate away from the coal discharge port to realize the swinging of the coal nozzle.

[0013] Furthermore, the locking method for the coal leakage nozzle when it is normally open is as follows: during the rotation process of the coal leakage nozzle, the rotation restriction of the buckle plate is first released by the first power device, and when the partition is adjusted to rotate to the normally open position, the buckle plate is then rotated by its own weight to fit with the limit strip to achieve the normally open locking of the coal leakage nozzle.

[0014] Furthermore, the method for closing the coal leakage nozzle is as follows: first, the first power device is used to control the buckle plate to rotate and disengage from the limit bar to release the normal open lock of the coal leakage nozzle, and then the second power device is used to drive the single arm to rotate in the opposite direction, thereby driving the connecting shaft to rotate in the opposite direction, and then driving the locking connecting rod and the connecting shaft fixed section to rotate in the opposite direction, so that the locking connecting rod is straightened, and the straightening process of the locking connecting rod is used to drive the adjusting partition to rotate closer until the coal discharge port is closed to realize the closing of the coal leakage nozzle.

[0015] Beneficial effects: The swing-type adjustable coal leakage nozzle and the opening, closing and locking control method thereof of the present invention have at least the following advantages:

[0016] (1) The opening and closing of the coal nozzle and the locking in the normally open and normally closed state are realized through the linkage control of the dual mechanical locks. The rotary opening and closing of the coal nozzle makes the coal nozzle adjustable to control the amount of coal released during the excavation period. The normally open state can meet the coal release demand of the fully mechanized mining face, and the locking in the normally open and normally closed state can ensure the safety of coal mining operations.

[0017] (2) By adjusting the amount of coal, the impact of the coal flow on the belt conveyor surface below can be effectively reduced, the damage to the belt surface can be reduced, the service life of the belt can be extended, the workload of belt maintenance and cleaning can be reduced, and costs can be saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Attached Figure 1 This is a structural side cross-sectional view of the swing-type adjustable coal leakage nozzle in the normally closed state of this application;

[0019] Attached Figure 2 This is a structural side view of the swing-type adjustable coal leakage nozzle in the normally open state of the present application;

[0020] Attached Figure 3 This is the state diagram of the second mechanical lock when it is normally on;

[0021] Attached Figure 4 The second mechanical lock locked state diagram when it is normally closed;

[0022] Attached Figure 5 A structural diagram of a locking link example. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with the accompanying drawings.

[0024] As attached Figure 1-5 The swing-type adjustable coal leakage nozzle and its opening, closing and locking control method include a coal discharge channel 1 inclined at an inclination angle a, an adjustable baffle 2 is arranged at the coal discharge port at the bottom end of the coal discharge channel 1, and the adjustable baffle 2 is hingedly arranged at the upper edge of the coal discharge port. A first mechanical lock 3 is arranged on the outer side of the swing end of the adjustable baffle 2, and the first mechanical lock 3 is controlled to open and close by a first power device 4. A second mechanical lock 5 is also arranged on the outer side of the adjustable baffle 2, and the second mechanical lock 5 is controlled to open and close by a second power device 6. The first mechanical lock 3 and the second mechanical lock 5 are linked to control the rotation of the adjustable baffle 2;

[0025] The first mechanical lock 3 includes a first hinge seat 3-1 fixedly arranged relative to the adjusting partition 2, a gusset plate 3-2 is hingedly arranged on the first hinge seat 3-1, the gusset plate 3-2 is controlled to rotate by the first power device 4, the gusset plate 3-2 is fitted and buckled with a limit bar 3-3 for locking when normally open, and the limit bar 3-3 is located on the swing path of the swing end of the adjusting partition 2;

[0026] The second mechanical lock 5 includes a locking link 5-1, one end of which is hinged to the adjusting partition 2 through a second hinge seat 5-5, and the other end of the locking link 5-1 is fixedly connected to the connecting shaft 5-2. The connecting shaft 5-2 is connected to the second power device 6 through a single arm 5-3, one end of the single arm 5-3 is fixedly connected to the connecting shaft 5-2, and the other end of the single arm 5-3 is hinged to the output end of the second power device 6, and the connecting shaft 5-2 is rotatably arranged relative to the axial hole of the fixed seat 5-4; the locking link 5-1 includes a connecting rod body assembled from a plurality of plate parts 5-11, and a locking block 5-12 is arranged at the hinge of the connecting rod body.

[0027] As a preferred embodiment, the inclination angle a can be set to 45°, which can effectively reduce the impact of the coal flow on the belt surface of the belt conveyor below, reduce the damage to the belt surface, extend the service life of the belt, reduce the workload of belt maintenance and cleaning, and save costs.

[0028] Locking method when the coal outlet is closed: During the process of rotating the adjusting baffle 2 to close the coal outlet, firstly, the locking link 5-1 is driven to straighten by the second power device 6, and then the locking block 5-12 is used to lock the link body to maintain the locking link 5-1 straight, and the straightened locking link 5-1 is used to support the adjusting baffle 2 to realize the closing and locking of the coal outlet.

[0029] Method for swinging the coal nozzle: first, the single arm 5-3 is driven to rotate by the second power device 6, thereby driving the connecting shaft 5-2 to rotate, and then driving the locking link 5-1 and the fixed section of the connecting shaft 5-2 to rotate, so that the locking link 5-1 is bent and folded, and the bending and folding process of the locking link 5-1 is used to drive the adjusting partition 2 to rotate away from the coal discharge port to realize the swinging of the coal nozzle.

[0030] Locking method when the coal leakage nozzle is normally open: During the rotation of the coal leakage nozzle, the rotation restriction of the buckle plate 3-2 is first released by the first power device 4. When the partition plate 2 is adjusted to rotate to the normally open position, the buckle plate 3-2 is rotated by its own weight to fit and buckle with the limit strip 3-3 to realize the normal opening and locking of the coal leakage nozzle.

[0031] The method of closing the coal leakage nozzle is as follows: first, the first power device 4 is used to control the buckle plate 3-2 to rotate and disengage from the limit strip 3-3 to release the normally open lock of the coal leakage nozzle, and then the second power device 6 is used to drive the single arm 5-3 to rotate in the opposite direction, thereby driving the connecting shaft 5-2 to rotate in the opposite direction, and then driving the locking link 5-1 and the fixed section of the connecting shaft 5-2 to rotate in the opposite direction, so that the locking link 5-1 is straightened, and the straightening process of the locking link 5-1 is used to drive the adjusting partition 2 to rotate closer until the coal discharge port is closed to realize the closing of the coal leakage nozzle.

[0032] As a preferred embodiment, a second mechanical lock 5 is provided on each side edge of the adjusting partition 2, and the fixed ends of the locking links 5-1 of the two second mechanical locks 5 are connected to the same connecting shaft 5-2, which can ensure the synchronous action of the locking links on both sides, and the fixed seats 5-4 corresponding to each second mechanical lock 5 are respectively arranged on the side baffles 1-1 extending from the side wall of the coal discharge channel 1 on the same side, and the limit strips 3-3 are horizontally mounted on the side baffles 1-1 on both sides; the side baffles on both sides provide a reasonable installation basis for the fixed seats and the limit strips, so that the two mechanical locks can achieve the expected functions, and the side baffles can also play the role of coal blocking, further reducing coal spillage.

[0033] The buckle plate 3-2 is rotatably arranged on one side of the first hinge seat 3-1, and a guide hole 3-5 is opened in the middle of the first hinge seat 3-1, and a push rod 3-4 is slidably arranged in the guide hole 3-5, and the push rod 3-4 pushes the buckle plate 3-2 to rotate, and the push rod 3-4 is driven to slide by the first power device 4; the position of the push rod in the guide hole is used to limit the rotation range of the buckle plate. When the push rod moves to the end of the guide hole away from the buckle plate, the buckle plate has a larger rotation range. Within this range, the buckle plate can rotate freely by its own gravity. After rotating to a certain angle, the end face of one end of the buckle plate just fits and fastens with the limiting end face of the limiting strip, so that the buckle plate can no longer rotate, thereby indirectly making the adjustment partition fixed relative to the limiting strip position, thereby realizing locking in the normally open state;

[0034] Under the premise of being in the normally open locked state, when the coal leakage nozzle needs to be closed, the push rod can be gradually slid along the guide hole toward the buckle plate. During the process, the push rod first contacts the buckle plate, and then pushes the buckle plate to rotate, so that the end face of the buckle plate is separated from the limit end face of the limit bar, and the lock in the normally open state can be released.

[0035] The swing-type coal nozzle adopting the above-mentioned structure has a continuous and natural effect in its opening and closing process, rotation adjustment process and locking state in the normally open and normally closed state all achieved by unified control action, without the need for separate control in each state, that is, as long as the partition is adjusted to be rotated to the closed state, the locking in the normally closed state can be achieved at the same time; as long as the partition is adjusted to be rotated to the maximum open state, the locking in the normally open state can be achieved at the same time. The control is simple and reliable, not prone to errors, and provides safety protection for the normally open and normally closed state.

[0036] The first power device 4 and the second power device 6 both use cylinders; the gas source can be provided by a compressed air pipeline arranged in the tunnel, which is simple and convenient to use. The cylinder body of the first power device can be hingedly arranged on the outside of the top inclined wall of the coal placement channel, and the cylinder body of the second power device can be hingedly arranged on the outside of the two side walls of the coal placement channel.

[0037] The above description is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the above principles of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A swing-type adjustable coal leakage nozzle, Features: The invention comprises a coal discharge channel (1) arranged at an inclination angle a, an adjustable baffle (2) being arranged at the coal discharge port at the bottom end of the coal discharge channel (1), the adjustable baffle (2) being hingedly arranged at the upper edge of the coal discharge port, a first mechanical lock (3) being arranged on the outer side surface of the swing end of the adjustable baffle (2), the first mechanical lock (3) being controlled to open and close by a first power device (4), a second mechanical lock (5) being arranged on the outer side surface of the adjustable baffle (2), the second mechanical lock (5) being controlled to open and close by a second power device (6), the first mechanical lock (3) and the second mechanical lock (5) being linked to control the rotation of the adjustable baffle (2); The first mechanical lock (3) comprises a first hinge seat (3-1) fixedly arranged relative to the adjusting partition (2), a buckle plate (3-2) is hingedly arranged on the first hinge seat (3-1), the buckle plate (3-2) is controlled to rotate by the first power device (4), the buckle plate (3-2) is fitted and buckled with a limit bar (3-3) for locking when normally open, and the limit bar (3-3) is located on the swing path of the swing end of the adjusting partition (2); The second mechanical lock (5) comprises a locking link (5-1), one end of which is hinged to the adjusting baffle (2) via a second hinge seat (5-5), the other end of which is fixedly connected to a connecting shaft (5-2), the connecting shaft (5-2) is connected to the second power device (6) via a single arm (5-3), one end of which is fixedly connected to the connecting shaft (5-2), the other end of which is hinged to an output end of the second power device (6), and the connecting shaft (5-2) is rotatably arranged relative to an axial hole of a fixed seat (5-4).

2. A swing-type adjustable coal leakage nozzle according to claim 1, Features: A second mechanical lock (5) is provided on each of the two side edges of the adjustment partition (2); the fixed ends of the locking connecting rods (5-1) of the two second mechanical locks (5) are connected to the same connecting shaft (5-2); the fixing seats (5-4) corresponding to each second mechanical lock (5) are respectively provided on the side baffles (1-1) extending from the side walls of the coal discharge channel (1) on the same side; and the limit strips (3-3) are horizontally mounted on the side baffles (1-1) on both sides.

3. A swing-type adjustable coal leakage nozzle according to claim 2, Features: The locking connecting rod (5-1) comprises a connecting rod body assembled from a plurality of plate members (5-11), and a locking block (5-12) is provided at a hinged portion of the connecting rod body.

4. The swing-type adjustable coal leakage nozzle according to claim 3, Features: The buckle plate (3-2) is rotatably arranged on one side of the first hinge seat (3-1); a guide hole (3-5) is opened in the middle of the first hinge seat (3-1); a push rod (3-4) is slidably arranged in the guide hole (3-5); the push rod (3-4) pushes the buckle plate (3-2) to rotate; and the push rod (3-4) is driven to slide by the first power device (4).

5. The swing-type adjustable coal leakage nozzle according to claim 4, Features: The first power device (4) and the second power device (6) both use cylinders.

6. A method for controlling the opening, closing and locking of a swing-type adjustable coal leakage nozzle according to any one of claims 1 to 5, It is characterized in that The method for locking the coal discharge nozzle when it is closed is as follows: when the adjusting baffle (2) rotates to close the coal discharge nozzle, the locking connecting rod (5-1) is first driven to straighten by the second power device (6), and then the locking block (5-12) locks the connecting rod body to keep the locking connecting rod (5-1) straight, and the straightened locking connecting rod (5-1) is used to support the adjusting baffle (2) to achieve the closing and locking of the coal discharge nozzle.

7. A method for controlling the opening, closing and locking of a swing-type adjustable coal leakage nozzle according to claim 6, It is characterized in that A method for swinging a coal nozzle: firstly, a second power device (6) drives a single arm (5-3) to rotate, thereby driving a connecting shaft (5-2) to rotate, and then driving a locking connecting rod (5-1) and a fixed section of the connecting shaft (5-2) to rotate, so that the locking connecting rod (5-1) is bent and folded, and the bending and folding process of the locking connecting rod (5-1) is utilized to drive an adjusting partition (2) to rotate away from the coal discharge port to realize the swinging of the coal nozzle.

8. The method for controlling the opening, closing and locking of a swing-type adjustable coal leakage nozzle according to claim 7, It is characterized in that The method for locking the coal leakage nozzle when it is normally open is as follows: during the process of the coal leakage nozzle being rotated, the rotation restriction of the buckle plate (3-2) is first released by the first power device (4), and when the partition plate (2) is adjusted to rotate to the normally open position, the buckle plate (3-2) is rotated by its own weight to fit and buckle with the limit strip (3-3) to realize the normally open locking of the coal leakage nozzle.

9. A method for controlling the opening, closing and locking of a swing-type adjustable coal leakage nozzle according to claim 8, It is characterized in that The method for closing the coal nozzle is as follows: first, the first power device (4) is used to control the buckle plate (3-2) to rotate and disengage from the limit bar (3-3) to release the normally open lock of the coal nozzle, and then the second power device (6) is used to drive the single arm (5-3) to rotate in the opposite direction, thereby driving the connecting shaft (5-2) to rotate in the opposite direction, and then driving the locking connecting rod (5-1) and the connecting shaft (5-2) fixed section to rotate in the opposite direction, so that the locking connecting rod (5-1) is straightened, and the straightening process of the locking connecting rod (5-1) is used to drive the adjusting partition plate (2) to rotate closer until the coal discharge port is closed to realize the closing of the coal nozzle.

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