Novel high-temperature closed rotary valve

Abstract

The utility model relates to a novel high-temperature closed rotary valve which comprises a shell. The driving assembly comprises a driving shaft which is rotatably mounted in the shell; the rotary valve assembly comprises blades annularly arranged on the driving shaft and an adjusting plate adjustably fixed to the sides, away from the driving shaft, of the blades. The adjusting assembly comprises an adjusting shaft and an arc-shaped plate, the adjusting shaft is rotatably installed in the shell, the arc-shaped plate is fixed to the bottom of the adjusting shaft, and the adjusting plate abuts against the arc-shaped plate. According to the high-temperature closed rotary valve, the driving assembly drives the blades to rotate, then heavy objects such as mud blocks are discharged, the abutting assembly abuts against the pressing plate, it is ensured that the adjusting plate and the pressing plate are in close contact, the sealing capacity is improved, and it is avoided that outside air enters a drying system, and consequently a roller is on fire.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of rotary valve, specifically relates to a novel high temperature sealed rotary valve. BACKGROUND

[0002] The shavings board is a kind of artificial board, mainly by wood, bamboo chip, broken veneer as raw material, it is shaved into thin and large flake, then through drying, air selection, adhesive and hot press effect gluing, also called particle board, finally after finishing and polishing, the board surface is smooth so as to form shavings board.

[0003] When the shavings material shaved from wood is dried, the heavy objects (mud, stone, large wood block etc.) in the shavings material need to be discharged through rotary valve, the existing rotary valve has poor sealing performance, and external air is easy to enter the drying system, thereby causing the drying cylinder to catch fire, easy to cause equipment damage, and also there is safety hazard to surrounding workers. UTILITY MODEL CONTENTS

[0004] The utility model provides a novel high temperature sealed rotary valve, solve the existing rotary valve sealing performance is poor, and external air is easy to enter the drying system, thereby causing the drying cylinder to catch fire's defect.

[0005] To achieve the above object, the utility model adopts the technical scheme:

[0006] Shell body;

[0007] Driving assembly, the driving assembly includes the driving shaft rotatably installed in the shell body;

[0008] Rotary valve assembly, the rotary valve assembly includes the vane around the driving shaft and the adjusting plate adjustably fixed on the side of the vane away from the driving shaft;

[0009] Adjusting assembly, the adjusting assembly includes the adjusting shaft rotatably installed in the shell body and the arc plate fixed in the bottom of the adjusting shaft, and the adjusting plate is in abutment with the arc plate.

[0010] Optimally, it further includes abutting assembly, the abutting assembly includes the screw adjustably threaded in the bottom of shell body and the top plate fixed in one end of the screw, and the top plate abuts on the bottom of arc plate.

[0011] Optimally, the rotary valve assembly further includes the connecting plate fixed between the adjacent two vane, the adjusting slot through the adjusting plate and the abutting surface obliquely arranged on the side of the adjusting plate away from the vane.

[0012] Optimally, the adjusting assembly further comprises an upper plate fixed at the bottom of the adjusting shaft, a lower plate connecting the upper plate and the arc plate, and a pressing plate fixed at the bottom of the arc plate, the upper plate abutting against one side of the pressing plate.

[0013] Optimally, the driving assembly further comprises a lower bearing seat frame fixed at both sides of the shell, a lower bearing seat fixed on the lower bearing seat frame, a speed reducer fixed at one side of the shell, a driving sprocket connected with the speed reducer, a driven sprocket sleeved on one end of the driving shaft, and a chain wound around the driving sprocket and the driven sprocket, the driving shaft penetrating through the lower bearing seat.

[0014] Optimally, the driving assembly further comprises a sealing groove opened at one side of the shell, a first sealing sleeve arranged in the sealing groove, a fixed block fixed at one side of the shell, a fixed plate fixed at the side of the fixed block away from the shell, and a stopper integrally connected to the side of the fixed plate close to the shell, the stopper abutting against the first sealing sleeve.

[0015] Optimally, the adjusting assembly further comprises an upper bearing seat frame fixed at both sides of the shell, an upper bearing seat fixed at both sides of the upper bearing seat frame, a second sealing sleeve arranged on the inner side of the upper bearing seat frame, and an oil injection hole opened on the outer side of the upper bearing seat.

[0016] Optimally, the pressing assembly further comprises a retaining sleeve fixed at one side of the shell, a spring groove opened in the retaining sleeve, a spring arranged in the spring groove, and a pressing plate fixed on the screw rod, the spring abutting between the pressing plate and the shell, and the screw rod and the retaining sleeve being coaxially arranged.

[0017] Optimally, at least two of the adjusting plates are in contact with the arc plate.

[0018] Thanks to the use of the above technical solutions, the present application has the following advantages over the prior art:

[0019] The high-temperature sealed rotary valve drives the blade to rotate through the driving assembly, thereby discharging heavy objects (mud blocks, stone blocks, large wood blocks, etc.) in the shaving material, and pressing the adjusting plate against the pressing plate through the pressing assembly, so as to ensure the close contact between the adjusting plate and the pressing plate, improve the sealing capacity, and avoid the entry of external air into the drying system to cause the fire of the roller. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a front view of the present application;

[0021] Figure 2 It is a sectional view of the present application;

[0022] Figure 3 It is a sectional view of the present application Figure 2 It is an enlarged view of A in the present application;

[0023] Figure 4 For the utility model Figure 2 Enlarged view of B in the middle;

[0024] Figure 5 For the utility model valve assembly front view;

[0025] Figure 6 For the utility model valve assembly sectional view;

[0026] Figure 7 For the utility model adjusting plate structure diagram;

[0027] Figure 8 For the utility model adjusting plate side view;

[0028] Figure 9 For the utility model adjusting assembly front view;

[0029] Figure 10 For the utility model adjusting assembly side view;

[0030] Figure 11 For the utility model pressure assembly structure diagram;

[0031] Explanation of reference signs:

[0032] 1, shell;

[0033] 2, drive assembly; 201, support; 202, support plate; 203, reinforcing plate; 204, speed reducer; 205, driving sprocket; 206, driven sprocket; 207, drive shaft; 208, sealing groove; 209, first sealing sleeve; 210, fixed block; 211, fixed plate; 212, abutment; 213, lower bearing seat frame; 214, lower bearing seat;

[0034] 3, valve assembly; 301, blade disc; 302, blade; 303, connecting plate; 304, adjusting plate; 305, adjusting groove; 306, abutting surface;

[0035] 4, adjusting assembly; 401, upper bearing seat frame; 402, upper bearing seat; 403, adjusting shaft; 404, upper plate; 405, lower plate; 406, arc plate; 407, pressing plate; 408, oil injection hole; 409, second sealing sleeve;

[0036] 5, pressure assembly; 501, connecting plate; 502, retaining sleeve; 503, spring groove; 504, spring; 505, screw; 506, top plate; 507, abutting plate. DETAILED DESCRIPTION

[0037] The utility model will be further described below in conjunction with the embodiment shown in the drawings.

[0038] As Figure 1 , 2 shown, is a schematic view of a new high-temperature closed rotary valve, which is usually applied in the lower part of the feed inlet of a particle board drying system, on the one hand, to play a role of removing heavy objects such as mud blocks, stone blocks, large wood blocks, etc.; on the other hand, to play a role of sealing to avoid the outside air entering the drying system, because too much oxygen-containing air entering, easy to cause the drying drum to catch fire.

[0039] The high-temperature rotary valve includes a shell 1, a driving assembly 2, a rotary valve assembly 3, an adjusting assembly 4 and a pressing assembly 5. The driving assembly 2 is used to drive the rotary valve assembly 3 to rotate in the shell 1, and then to remove the heavy objects (such as mud blocks, stone blocks, large wood blocks, etc.) in the particle material. The adjusting assembly 4 is rotatably arranged in the shell 1 and abuts against the rotary valve assembly 3. When the rotary valve assembly 3 rotates, the rotary valve assembly 3 seals by abutting against the adjusting assembly 4, to avoid the outside air entering the drying system, because too much oxygen-containing air entering, easy to cause the drying drum to catch fire. The pressing assembly 5 is fixed on one side of the bottom of the shell 1 and abuts against the adjusting assembly 4, to ensure the close contact between the adjusting assembly 4 and the rotary valve assembly 3.

[0040] As Figures 1-3 shown, is a schematic view of the driving assembly 2, which is used to provide driving force for the rotation of the rotary valve assembly 3. The driving assembly 2 includes a bracket 201, a support plate 202, a reinforcing plate 203, a speed reducer 204, a driving sprocket 205, a driven sprocket 206, a driving shaft 207, a sealing groove 208, a first sealing sleeve 209, a fixed block 210, a fixed plate 211, an abutting block 212, a lower bearing seat frame 213 and a lower bearing seat 214. The bracket 201 is fixed on one side of the shell 1 by screw fastening or welding. The support plate 202 is horizontally fixed on the top of the bracket 201. The speed reducer 204 is fixed on the top of the support plate 202 and is used to drive the driving shaft 207 to rotate, and then to drive the rotary valve assembly 3 to rotate.

[0041] The reinforcing plate 203 is fixed between the bracket 201 and the support plate 202, to improve the structural strength of the support plate 202. By arranging the bracket 201 and the reinforcing plate 203, the support plate 202 is ensured to be in a horizontal state, which is convenient for fixing and installing the speed reducer 204.

[0042] The driving sprocket 205 is connected with the output end of the speed reducer 204. The driven sprocket 206 is fixed on one end of the driving shaft 207. A chain is wound around the driving sprocket 205 and the driven sprocket 206. The driving sprocket 205 is driven to rotate by the speed reducer 204, and then the driven sprocket 206 and the driving shaft 207 are driven to rotate by the chain (the chain is not shown in the figure).

[0043] The lower bearing seat frame 213 is fixed on both sides of the shell 1, the lower bearing seat 214 is fixed on the lower bearing seat frame 213, and the drive shaft 207 passes through the lower bearing seat 214 and the shell 1. By setting the lower bearing seat 214, the rotation stability of the drive shaft 207 is improved.

[0044] The sealing groove 208 is formed on one side of the housing 1. The first sealing sleeve 209 is filled in the sealing groove 208. When the drive shaft 207 rotates, the sealing performance of the peripheral surface of the drive shaft 207 is improved to prevent external impurities from entering the housing 1. The first sealing sleeve 208 is asbestos packing.

[0045] The fixing block 210 is fixed to the side of the shell 1 where the sealing groove 208 is provided. The fixing plate 211 is fixed to the fixing block 210 by screw fastening. The abutment block 212 is integrally connected to the inner side of the fixing plate 211 and abuts against the first sealing sleeve 209 to prevent the first sealing sleeve 209 from falling out of the sealing groove 208.

[0046] The rotary valve assembly 3 is fixed on the drive shaft 207. When the drive shaft 207 rotates, the rotary valve assembly 3 is driven to rotate synchronously, thereby discharging heavy objects (such as mud, stones, large wood blocks, etc.) in the wood shavings. Figure 5 、 6 , which is a schematic diagram of the rotary valve assembly 3, includes a blade disk 301, blades 302, a connecting plate 303, an adjustment plate 304, an adjustment slot 305, and an abutment surface 306. The blade disk 301 consists of two pieces, fixed at both ends of the drive shaft 207 and spaced apart.

[0047] The blades 302 are fixed on the drive shaft 207 and fixed to the blade disk 301. The angles between two adjacent blades 302 are the same to ensure uniformity during discharge. Figure 7 Figure 304 is a schematic diagram of the adjustment plate 304. The adjustment slot 305 is a rounded rectangular shape and extends through the adjustment plate 304. The adjustment plate 304 is secured to the side of the blade 302 away from the drive shaft 207 using a combination of bolts and nuts. Adjusting the position of the adjustment plate 304 changes the rotational range of the blade 302 and adjustment plate 304, ensuring closer contact between the adjustment plate 304 and the curved plate 406 and improving sealing performance.

[0048] like Figure 8 As shown, the outer side of the adjustment plate 304 is provided with an inclined abutment surface 306, and the inclination angle of the abutment surface 306 is 5 degrees. When the drive shaft 207 drives the blade 302 and the adjustment plate 304 to rotate, the inclined abutment surface 306 on the outer side of the adjustment plate 304 contacts the curved plate 406, ensuring that the adjustment plate 304 can more easily enter the curved plate 406 and rotate along the inner arc trajectory of the curved plate 406.

[0049] When the blade 302 rotates, at least two adjusting plates 304 are in contact with the arc-shaped plate 406, so that a gap is avoided between the rotating adjusting plate 304 and the arc-shaped plate 406, and the sealing performance is improved.

[0050] The connecting plate 303 is fixed between the adjacent two blades 302, so that the structural strength of the blade 302 is improved, and the blade 302 is prevented from being bent when the weight is lifted for a long time.

[0051] The adjusting assembly 4 is arranged in the shell 1 and abuts against the adjusting plate 304 of the rotating valve assembly 3. When the adjusting plate 304 rotates, the adjusting assembly 4 is abutted and sealed, so that the outside air is prevented from entering the drying system. If too much oxygen-containing air enters, the drying roller is prone to fire. Figure 9 、 10 As shown in the drawings, the adjusting assembly 4 comprises an upper bearing seat frame 401, an upper bearing seat 402, an adjusting shaft 403, an upper plate 404, a lower plate 405, an arc-shaped plate 406, a pressing plate 407, an oil injection hole 408 and a second sealing sleeve 409.

[0052] The upper bearing seat frame 401 is fixed on the two sides of the shell 1 and above the lower bearing seat frame 213 by screw fastening. The upper bearing seat 402 is fixed on the upper bearing seat frame 401. The adjusting shaft 403 penetrates through the upper bearing seat 402.

[0053] The side of the upper bearing seat frame 401 close to the upper bearing seat 402 is provided with a sealing groove. The second sealing sleeve 409 is arranged in the sealing groove, so that the lubricating oil and external impurities are prevented from entering the shell 1. The sidewall of the upper bearing seat 402 is provided with the oil injection hole 408, so that the operator can inject oil into the bearing inside, prevent friction loss and wear, and protect the stable operation of the machine.

[0054] The upper plate 404 is fixed at the bottom of the adjusting shaft 403 by the screw and nut cooperation. The lower plate 405 is fixed at the bottom of the upper plate 404 by the screw and nut cooperation. The arc-shaped plate 406 is integrally connected at the bottom of the lower plate 405, and the arc center of the arc-shaped plate 406 faces the blade 302. The pressing plate 407 is integrally connected at the bottom of the arc-shaped plate 406. The abutting assembly 5 abuts against the pressing plate 407, so that the adjusting plate 304 and the arc-shaped plate 406 are in close contact, and the adjusting plate 304 is prevented from rotating outward against the arc-shaped plate 406.

[0055] After long-term work, the arc-shaped plate 406 needs to be repaired and replaced. At this time, the abutting assembly 5 is moved outward, the pressing plate 407 lacks abutment, and under the action of the adjusting shaft 403, the operator can overturn the arc-shaped plate 406 outward, and then replace it.

[0056] The abutting assembly 5 is fixed on one side of the shell 1 and abuts against the pressing plate 407, so that the adjusting plate 304 and the arc-shaped plate 406 are in close contact. Figure 11As shown, the pressing assembly 5 comprises a connecting plate 501, a retaining sleeve 502, a spring groove 503, a spring 504, a screw rod 505, a top plate 506 and a pressing plate 507. The connecting plate 501 is fixed at the bottom of the shell 1 by means of screwing with nuts, the retaining sleeve 502 is fixed at the side of the connecting plate 501 away from the shell 1, and the spring groove 503 is formed in the retaining sleeve 502 for protecting the spring 504 inside.

[0057] The screw rod 505 penetrates through the connecting plate 501 and the shell 1, and the connecting plate 501 and the shell 1 are provided with threaded holes, the screw rod 505 is screwed through the connecting plate 501 and the shell 1, and the screw rod 505 moves into or out of the shell 1 by screwing.

[0058] The top plate 506 is fixed at the inner side of the screw rod 505 and abuts against the pressing plate 407, ensuring the close contact between the adjusting plate 304 and the arc-shaped plate 406. The spring 504 is sleeved on the screw rod 505 and located in the spring groove 503, and the pressing plate 507 is fixed on the screw rod 505 and abuts against the outer side of the spring 504, the spring 504 is compressed when the screw rod 505 is screwed inward, and the screw rod 505 is conveniently screwed out under the force of the spring 504 when the screw rod 505 is screwed outward.

[0059] The high-temperature closed rotary valve drives the driving sprocket 205 to rotate through the speed reducer 204, then drives the driven sprocket 206 and the driving shaft to rotate through the chain, and then drives the blade 302 to rotate, so as to discharge heavy objects such as mud blocks (the shavings are blown away by the dry hot air above due to the light weight, and the mud blocks and stones are discharged by the rotating blade 302 due to the heavy weight and falling into the shell); the pressing assembly 5 abuts against the pressing plate 407, ensuring the close contact between the adjusting plate 304 and the pressing plate 407, improving the sealing capacity, and avoiding the air outside entering the drying system to cause the roller to catch fire.

[0060] The above embodiments are only for illustrating the technical concept and characteristics of the utility model, the purpose is to enable the person skilled in the art to understand the content of the utility model and to implement it, and it cannot limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit and essence of the utility model shall be covered within the protection scope of the utility model.

Claims

1. A new type of high temperature sealed rotary valve, characterized in that: It includes: Housing (1); A drive assembly (2), the drive assembly (2) comprising a drive shaft (207) rotatably mounted within the housing (1); A rotary valve assembly (3), comprising a blade (302) annularly arranged on the drive shaft (207) and an adjustment plate (304) adjustably fixed to a side of the blade (302) away from the drive shaft (207); An adjustment assembly (4) includes an adjustment shaft (403) rotatably mounted in the housing (1) and an arc-shaped plate (406) fixed to the bottom of the adjustment shaft (403), wherein the adjustment plate (304) abuts against the arc-shaped plate (406).

2. A novel high-temperature sealed rotary valve according to claim 1, characterized in that: It also includes a pressing assembly (5), which includes a screw rod (505) adjustably inserted into the bottom of the housing (1) and a top plate (506) fixed to one end of the screw rod (505), wherein the top plate (506) presses against the bottom of the arc-shaped plate (406).

3. A novel high-temperature sealed rotary valve according to claim 1, characterized in that: The rotary valve assembly (3) further comprises a connecting plate (303) fixed between two adjacent blades (302), an adjusting slot (305) penetrating the adjusting plate (304), and an abutting surface (306) obliquely provided on a side of the adjusting plate (304) away from the blades (302).

4. A novel high-temperature sealed rotary valve according to claim 2, characterized in that: The adjustment assembly (4) further comprises an upper plate (404) fixed to the bottom of the adjustment shaft (403), a lower plate (405) connecting the upper plate (404) and the arc-shaped plate (406), and a pressure plate (407) fixed to the bottom of the arc-shaped plate (406), wherein the top plate (506) abuts against one side of the pressure plate (407).

5. A novel high-temperature sealed rotary valve according to claim 1, characterized in that: The drive assembly (2) further comprises lower bearing seats (213) fixed on both sides of the housing (1), a lower bearing seat (214) fixed on the lower bearing seat (213), a reducer (204) fixed on one side of the housing (1), a driving sprocket (205) connected to the reducer (204), a driven sprocket (206) sleeved on one end of the drive shaft (207), and a chain wound around the driving sprocket (205) and the driven sprocket (206), wherein the drive shaft (207) passes through the lower bearing seat (214).

6. A novel high-temperature sealed rotary valve according to claim 1, characterized in that: The drive assembly (2) further comprises a sealing groove (208) provided on one side of the housing (1), a first sealing sleeve (209) provided in the sealing groove (208), a fixing block (210) fixed on one side of the housing (1), a fixing plate (211) fixed on a side of the fixing block (210) away from the housing (1), and a stop block (212) integrally connected to a side of the fixing plate (211) close to the housing (1), wherein the stop block (212) abuts against the first sealing sleeve (209).

7. A novel high-temperature sealed rotary valve according to claim 1, characterized in that: The adjustment assembly (4) further comprises an upper bearing seat frame (401) fixed on both sides of the housing (1), an upper bearing seat (402) fixed on both sides of the upper bearing seat frame (401), a second sealing sleeve (409) arranged on the inner side of the upper bearing seat frame (401), and an oil injection hole (408) opened on the outer side of the upper bearing seat (402).

8. The novel high-temperature sealed rotary valve according to claim 2 is characterized in that: The pressing assembly (5) further comprises a retaining sleeve (502) fixed to one side of the housing (1), a spring groove (503) provided in the retaining sleeve (502), a spring (504) disposed in the spring groove (503), and a retaining plate (507) fixed to the screw rod (505), wherein the spring (504) is positioned between the retaining plate (507) and the housing (1), and the screw rod (505) and the retaining sleeve (502) are coaxially arranged.

9. The novel high-temperature sealed rotary valve according to claim 1 is characterized in that: At least two of the adjustment plates (304) are in contact with the arc-shaped plate (406).

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