Discharge port opening and closing device

Abstract

The utility model provides a discharge port opening and closing device which comprises a hopper discharge port and an opening and closing mechanism, fixing grooves communicated with the interior are formed in the two sides of the hopper discharge port, and the opening and closing mechanism comprises two sets of baffles and a driving mechanism. The two sets of hydraulic telescopic columns are driven to contract to drive the baffles to move, and the baffles move to drive the other set of baffles to move reversely through the transmission assembly, so that the two sets of baffles move relatively close to each other. The two groups of baffles move close to each other relatively, so that the end part of the upper baffle can scrape sand on the top surface of the lower baffle, and the bottom surface of the upper baffle is in contact with the top surface of the lower baffle after scraping the sand so as to seal the discharge port of the hopper, and the sand clamped between the two groups of baffles can be avoided in a manner that the two groups of baffles are in staggered contact with and seal the discharge port of the hopper; therefore, the sand leakage phenomenon is avoided, abrasion of sand to the baffle and the discharging opening of the hopper is reduced, the material breaking effect of the device is improved, and the service life of the device is prolonged.

Description

Technical Field

[0001] The utility model specifically relates to a discharge port opening and closing device. Background Art

[0002] At present, during the processes of sand screening, storage, loading and shipment, the sand in the hopper must be discharged from the hopper to the next link. Among them, the discharge port of the hopper is usually equipped with switching valves such as electric or hydraulic flat gates to form the opening and closing of the discharge port.

[0003] Most of the discharge port opening and closing devices in the prior art have simple structures. When the plate is driven to move so that the end surface of the plate contacts the inner side surface of the discharge port to seal the discharge port, sand is easily sandwiched between the end surface of the plate and the inner side surface of the discharge port, which results in a gap between the end surface of the plate and the inner side surface of the discharge port. This not only easily causes sand leakage, but also increases the wear between the end surface of the plate and the inner side surface of the discharge port, reducing the material breaking effect and service life of the device. Therefore, in view of the above technical problems, a discharge port opening and closing device is proposed. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model proposes a discharge port opening and closing device to avoid sand leakage, reduce wear between the baffle and the inner side of the discharge port, and improve the material cutting effect and service life of the device.

[0005] The discharge port opening and closing device comprises a hopper discharge port and an opening and closing mechanism, wherein both sides of the hopper discharge port are provided with fixed grooves communicating with the interior, and the opening and closing mechanism comprises:

[0006] Two groups of baffles can be slid along the width direction of the hopper discharge port and penetrated into the two groups of fixed grooves, and are staggered in the horizontal direction. The two groups of baffles can seal or open the hopper discharge port by moving closer or farther from each other; and

[0007] The driving mechanism includes two groups of hydraulic telescopic columns and a transmission assembly. The two groups of hydraulic telescopic columns are respectively arranged at both ends of the hopper discharge port, and the telescopic ends are connected to one group of baffles. The transmission assembly is arranged on the hopper discharge port and connected to the two groups of baffles. The transmission assembly is used to convert the movement of one group of baffles into the reverse movement of the other group of baffles.

[0008] The beneficial effects of the above-mentioned discharge port opening and closing device are:

[0009] When cutting material, the baffle is driven to move by driving two groups of hydraulic telescopic columns to contract, and the movement of the baffle drives the other group of baffles to move in the opposite direction through the transmission assembly, so that the two groups of baffles move relatively close to each other. The two groups of baffles move relatively close to each other so that the end of the upper baffle can scrape off the sand on the top surface of the lower baffle and make the bottom surface of the upper baffle contact with the top surface of the lower baffle after the sand is scraped off, thereby sealing the hopper discharge port. The staggered contact and sealing of the hopper discharge port by the two groups of baffles can avoid sand being clamped between the two groups of baffles, thereby avoiding sand leakage and reducing the wear of the baffle and the hopper discharge port by the sand, thereby improving the cutting effect and service life of the device.

[0010] In one embodiment, the transmission assembly includes a rack and a gear; two sets of racks that can slide along the width direction of the hopper discharge port are provided at both ends of the hopper discharge port, and the two sets of racks at the same end are respectively connected to the two sets of baffles, and the gears are rotatably provided at both ends of the hopper discharge port, and the gears are located between the two sets of gears and mesh with the two sets of racks. The movement of the baffle drives the rack to move, and the movement of the rack meshes with the gear to drive the gear to rotate, and the rotation of the gear meshes with another set of racks to drive the other set of racks to drive the other set of baffles to move in the opposite direction, so that the two sets of baffles can be driven to move relatively close or away.

[0011] In one embodiment, two sets of fixing sleeves are provided at both ends of the hopper discharge port, and the rack can be slidably inserted into the fixing sleeves along the width direction of the hopper discharge port. The fixing sleeves are provided to cooperate with the racks to improve the stability of the racks when they move, thereby further improving the stability of the baffle when it moves.

[0012] In one of the embodiments, the opening and closing mechanism also includes an adjusting mechanism, and the two groups of baffles are connected to the two groups of racks through the adjusting mechanism. The adjusting mechanism includes a connecting rod and a driving member. Both ends of the connecting rod are connected to the two groups of racks moving in the same direction. Two groups of driving members are relatively rotatably arranged on the connecting rod. The connecting rod is connected to the baffle through the two groups of driving members. Rotating the two groups of driving members can drive the baffle to move. By rotating the two sets of driving parts to drive the baffles to move, the distance between the two sets of baffles can be increased or decreased. When the distance between the two sets of baffles is reduced, the area of ​​the baffles blocking the hopper discharge opening after moving relatively far away from each other increases, thereby reducing the size of the hopper discharge opening. When the distance between the two sets of baffles is increased, the area of ​​the baffles blocking the hopper discharge opening after moving relatively far away from each other decreases, thereby increasing the size of the hopper discharge opening. It is convenient to adjust the size of the hopper discharge opening, so as to facilitate the adjustment of the discharge amount of the hopper discharge opening per unit time according to demand. At the same time, when the end of the baffle is worn due to long-term use, the wear size can also be compensated by moving the baffle to ensure that the two sets of baffles are relatively close and move to seal the hopper discharge opening, further improving the service life of the device and reducing the cost of using the device.

[0013] In one embodiment, the driving member includes an adjusting screw; two sets of the adjusting screws are relatively rotatably arranged on the connecting rod and are connected to the baffle thread. The baffle can be driven to move by synchronously rotating the two sets of adjusting screws in cooperation with the baffle thread, and the baffle can be driven to move in the opposite direction by synchronously rotating the two sets of adjusting screws in cooperation with the baffle thread. The baffle is driven to move conveniently and stably, and the baffle can be fixed by stopping the rotation of the adjusting screws, which is convenient for fixing the baffle.

[0014] In one embodiment, the adjustment mechanism further includes a linkage assembly, the linkage assembly includes a sprocket and a chain, the two groups of adjustment screws are provided with the sprocket, and the chain connects the two groups of sprockets. By rotating one group of adjustment screws, the other group of adjustment screws can be driven to rotate synchronously through the cooperation of the sprocket and the chain, and synchronously rotating the two groups of adjustment screws is convenient and labor-saving.

[0015] In one embodiment, the ends of the two groups of adjusting screws away from the hopper discharge port are both provided with a crank handle. The crank handle is provided to facilitate the adjustment screw to rotate, and the adjustment screw can be driven to rotate conveniently and labor-savingly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation of the utility model, the following will briefly introduce the drawings required for use in the specific implementation. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0017] Figure 1 A schematic diagram of the three-dimensional structure of a discharge port opening and closing device provided in one embodiment of the utility model;

[0018] Figure 2 for Figure 1 An exploded view of the discharge port opening and closing device shown;

[0019] Figure 3 for Figure 1 The right side view of the discharge port opening and closing device in the material cutting state is shown;

[0020] Figure 4 for Figure 1 An exploded view of the adjustment mechanism in the discharge port opening and closing device is shown.

[0021] Reference numerals:

[0022] 10. hopper discharge port; 101. fixing groove; 102. fixing sleeve;

[0023] 20. Baffle;

[0024] 30. driving mechanism; 301. hydraulic telescopic column; 302. rack; 303. gear;

[0025] 40. Adjusting mechanism; 401. Connecting rod; 402. Chain; 403. Adjusting screw; 4031. Crank handle; 404. Sprocket. DETAILED DESCRIPTION

[0026] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0027] See also Figures 1 to 3 The discharge port opening and closing device in one embodiment includes a hopper discharge port 10 and an opening and closing mechanism. Both sides of the hopper discharge port 10 are provided with fixed grooves 101 connected to the interior. The opening and closing mechanism includes two sets of baffles 20 and a driving mechanism 30.

[0028] Among them, the two groups of baffles 20 can be slid along the width direction of the hopper discharge port 10 and penetrate into the two groups of fixed grooves 101, and are staggered in the horizontal direction. The two groups of baffles 20 can seal or open the hopper discharge port 10 by moving relatively close or away; the driving mechanism 30 includes two groups of hydraulic telescopic columns 301 and a transmission assembly. The two groups of hydraulic telescopic columns 301 are respectively arranged at both ends of the hopper discharge port 10, and the telescopic ends are connected to one of the groups of baffles 20. The transmission assembly is arranged on the hopper discharge port 10 and connected to the two groups of baffles 20. The transmission assembly is used to convert the movement of one group of baffles 20 into the reverse movement of the other group of baffles 20.

[0029] Specifically, the transmission assembly includes a rack 302 and a gear 303; two sets of racks 302 that can slide along the width direction of the hopper discharge port 10 are arranged at both ends of the hopper discharge port 10, and the two sets of racks 302 at the same end are respectively connected to the two sets of baffles 20, and gears 303 are rotatably arranged at both ends of the hopper discharge port 10. The gear 303 is located between the two sets of gears 303 and meshes with the two sets of racks 302.

[0030] In the above embodiment, when the material is cut, the baffle 20 is driven to move by driving the two groups of hydraulic telescopic columns 301 to contract, and the movement of the baffle 20 drives the rack 302 to move, and the rack 302 moves to mesh with the gear 303 to drive the gear 303 to rotate, and the gear 303 rotates to mesh with another group of racks 302 to drive the other group of racks 302 to drive the other group of baffles 20 to move in the opposite direction, so that the two groups of baffles 20 are relatively close to each other. The two groups of baffles 20 move relatively close to each other, so that the end of the upper baffle 20 can scrape the sand material on the top surface of the lower baffle 20 and make the bottom surface of the upper baffle 20 contact with the top surface of the lower baffle 20 after the sand material is scraped off. Thereby, the hopper discharge port 10 is sealed. The staggered contact of the two groups of baffles 20 to seal the hopper discharge port 10 can avoid sand being clamped between the two groups of baffles 20, thereby avoiding sand leakage and reducing the wear of the baffles 20 and the hopper discharge port 10 by the sand, thereby improving the material breaking effect and service life of the device. When discharging again, the two groups of baffles 20 can be moved relatively away from each other by driving the two groups of hydraulic telescopic columns 301 to extend and drive the baffles 20 to move in the opposite direction. The two groups of baffles 20 are moved relatively away from each other to separate the two groups of baffles 20, and the hopper discharge port 10 can be opened. At this time, the sand can be discharged from the hopper discharge port 10.

[0031] On the basis of the above embodiment, two sets of fixing sleeves 102 are further provided at both ends of the hopper discharge port 10, and the rack 302 can be slidably arranged in the fixing sleeve 102 along the width direction of the hopper discharge port 10. By providing the fixing sleeve 102 and the rack 302 to cooperate, the stability of the rack 302 when moving can be improved, thereby further improving the stability of the baffle 20 when moving.

[0032] On the basis of the above embodiment, further, the ends of the two groups of baffles 20 close to each other are both provided with inclined surfaces, the angle between the inclined surface of the upper baffle 20 and the bottom surface is an acute angle, and the angle between the inclined surface of the lower baffle 20 and the top surface is an acute angle. The upper baffle 20 is provided with an inclined surface to facilitate the upper baffle 20 to scrape the sand material on the top surface of the lower baffle 20, and the lower baffle 20 is provided with an inclined surface to reduce the contact area between the sand material and the end surface of the lower baffle 20 during material discharge, thereby reducing the wear on the lower baffle 20 during material discharge and increasing the service life of the lower baffle 20.

[0033] See also Figure 1 , Figure 3 and Figure 4 In one embodiment, the opening and closing mechanism also includes an adjusting mechanism 40, and the two groups of baffles 20 are connected to the two groups of racks 302 through the adjusting mechanism 40. The adjusting mechanism 40 includes a connecting rod 401 and a driving member. Both ends of the connecting rod 401 are connected to the two groups of racks 302 that move in the same direction. Two groups of driving members are relatively rotatably arranged on the connecting rod 401. The connecting rod 401 is connected to the baffle 20 through the two groups of driving members. Rotating the two groups of driving members can drive the baffle 20 to move.

[0034] In the above embodiment, the distance between the two groups of baffles 20 can be increased or decreased by rotating the two groups of driving members to drive the baffles 20 to move. When the distance between the two groups of baffles 20 decreases, the area of ​​the baffle 20 blocking the hopper discharge port 10 after moving relatively far away increases, thereby reducing the size of the hopper discharge port 10. When the distance between the two groups of baffles 20 increases, the area of ​​the baffle 20 blocking the hopper discharge port 10 after moving relatively far away decreases, thereby increasing the size of the hopper discharge port 10. It is convenient to adjust the size of the hopper discharge port 10, so as to facilitate adjusting the discharge amount of the hopper discharge port 10 per unit time according to demand. At the same time, when the end of the baffle 20 is worn due to long-term use, the wear size can also be compensated by moving the baffle 20 to ensure that the two groups of baffles 20 are relatively close and move to offset and seal the hopper discharge port 10, further improving the service life of the device and reducing the cost of using the device.

[0035] On the basis of the above embodiment, further, the driving member includes an adjusting screw 403; two sets of adjusting screws 403 are relatively rotatably arranged on the connecting rod 401, and are threadedly connected to the baffle 20. The baffle 20 can be driven to move by synchronously rotating the two sets of adjusting screws 403 and threading the baffle 20, and the baffle 20 can be driven to move in the opposite direction by synchronously rotating the two sets of adjusting screws 403 and threading the baffle 20. The baffle 20 is driven to move conveniently and stably, and the baffle 20 can be fixed by stopping the rotation of the adjusting screws 403, and the fixing of the baffle 20 is convenient.

[0036] On the basis of the above embodiment, the adjustment mechanism 40 further includes a linkage assembly, which includes a sprocket 404 and a chain 402. The two sets of adjustment screws 403 are both provided with a sprocket 404, and the chain 402 connects the two sets of sprockets 404. By rotating one set of adjustment screws 403, the other set of adjustment screws 403 can be driven to rotate synchronously through the cooperation of the sprocket 404 and the chain 402, and synchronously rotating the two sets of adjustment screws 403 is convenient and labor-saving.

[0037] On the basis of the above embodiment, further, the ends of the two sets of adjusting screws 403 away from the hopper discharge port 10 are both provided with a crank 4031. By providing the crank 4031, it is convenient to drive the adjusting screw 403 to rotate, and driving the adjusting screw 403 to rotate is convenient and labor-saving.

[0038] The specific implementation of the above-mentioned discharge port opening and closing device is as follows:

[0039] When the material is cut, the two groups of hydraulic telescopic columns 301 are driven to contract and drive the baffle 20 to move. The movement of the baffle 20 drives the rack 302 to move. The rack 302 moves and meshes with the gear 303 to drive the gear 303 to rotate. The gear 303 rotates and meshes with another group of racks 302 to drive the other group of racks 302 to drive the other group of baffles 20 to move in the opposite direction, so that the two groups of baffles 20 are relatively close. The two groups of baffles 20 move relatively close to each other, so that the end of the upper baffle 20 can scrape the sand material on the top surface of the lower baffle 20 and make the bottom surface of the upper baffle 20 contact with the top surface of the lower baffle 20 after the sand material is scraped off, so as to seal. The hopper discharge port 10 and the staggered contact and sealing manner of the two groups of baffles 20 can avoid sand being clamped between the two groups of baffles 20, thereby avoiding sand leakage and reducing the wear of the baffles 20 and the hopper discharge port 10 by the sand, thereby improving the material breaking effect and service life of the device. When discharging again, the two groups of baffles 20 can be moved relatively away from each other by driving the two groups of hydraulic telescopic columns 301 to extend and drive the baffles 20 to move in the opposite direction. The two groups of baffles 20 can be moved relatively away from each other to open the hopper discharge port 10, and the sand can be discharged from the hopper discharge port 10 at this time.

[0040] At the same time, by rotating one of the groups of adjusting screws 403, the adjusting screws 403 rotate through the sprocket 404 and the chain 402 to drive the other group of adjusting screws 403 to rotate synchronously. The two groups of adjusting screws 403 rotate synchronously to drive the baffles 20 to move, thereby increasing or decreasing the distance between the two groups of baffles 20. When the distance between the two groups of baffles 20 decreases, the area of ​​the baffles 20 that blocks the hopper discharge port 10 after moving relatively away increases, thereby reducing the size of the hopper discharge port 10. When the distance between the two groups of baffles 20 increases, After the baffle 20 moves relatively far away, the area of ​​the hopper discharge port 10 blocked is reduced, thereby increasing the size of the hopper discharge port 10 and making it convenient to adjust the size of the hopper discharge port 10, thereby facilitating the adjustment of the discharge volume of the hopper discharge port 10 per unit time according to demand. At the same time, when the end of the baffle 20 is worn due to long-term use, the wear size can also be compensated by moving the baffle 20, ensuring that the two groups of baffles 20 are relatively close and can be offset to seal the hopper discharge port 10, further improving the service life of the device and reducing the cost of using the device.

[0041] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. The discharge port opening and closing device is characterized in that: It comprises a hopper discharge port (10) and an opening and closing mechanism, wherein both sides of the hopper discharge port (10) are provided with fixed grooves (101) communicating with the interior, and the opening and closing mechanism comprises: Two groups of baffles (20) are respectively slidably disposed in the two groups of fixed grooves (101) along the width direction of the hopper discharge opening (10), and are staggered in the horizontal direction. The two groups of baffles (20) can seal or open the hopper discharge opening (10) by moving closer or farther from each other; and The driving mechanism (30) comprises two groups of hydraulic telescopic columns (301) and a transmission assembly. The two groups of hydraulic telescopic columns (301) are respectively arranged at two ends of the hopper discharge port (10), and the telescopic ends are connected to one group of the baffles (20). The transmission assembly is arranged on the hopper discharge port (10) and is connected to the two groups of the baffles (20). The transmission assembly is used to convert the movement of one group of the baffles (20) into the reverse movement of the other group of the baffles (20).

2. The discharge port opening and closing device according to claim 1, characterized in that: The transmission assembly comprises a rack (302) and a gear (303); two groups of racks (302) capable of sliding along the width direction of the hopper discharge opening (10) are arranged at both ends of the hopper discharge opening (10); the two groups of racks (302) at the same end are respectively connected to two groups of baffles (20); the gears (303) are rotatably arranged at both ends of the hopper discharge opening (10); the gear (303) is located between the two groups of gears (303) and meshes with the two groups of racks (302).

3. The discharge port opening and closing device according to claim 2, characterized in that: Two sets of fixing sleeves (102) are provided at both ends of the hopper discharge opening (10), and the rack (302) can be slidably inserted into the fixing sleeves (102) along the width direction of the hopper discharge opening (10).

4. The discharge port opening and closing device according to claim 2, characterized in that: The opening and closing mechanism also includes an adjusting mechanism (40), and the two groups of baffles (20) are connected to the two groups of racks (302) through the adjusting mechanism (40). The adjusting mechanism (40) includes a connecting rod (401) and a driving member. The two ends of the connecting rod (401) are connected to the two groups of racks (302) moving in the same direction. Two groups of driving members are relatively rotatably arranged on the connecting rod (401). The connecting rod (401) is connected to the baffle (20) through the two groups of driving members. Rotating the two groups of driving members can drive the baffle (20) to move.

5. The discharge port opening and closing device according to claim 4, characterized in that: The driving member comprises an adjusting screw (403); two groups of the adjusting screws (403) are relatively rotatably arranged on the connecting rod (401) and are threadedly connected to the baffle (20).

6. The discharge port opening and closing device according to claim 5, characterized in that: The adjustment mechanism (40) further comprises a linkage assembly, wherein the linkage assembly comprises a sprocket (404) and a chain (402), wherein the two groups of adjustment screws (403) are both provided with the sprocket (404), and the chain (402) connects the two groups of sprockets (404).

7. The discharge port opening and closing device according to claim 5, characterized in that: The ends of the two groups of adjusting screws (403) away from the hopper discharge port (10) are both provided with a crank handle (4031).

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