CN219083751U - Intermediate door mechanism - Google Patents

Abstract

The utility model relates to an intermediate door mechanism, which comprises a frame door, wherein the upper ends of a steel frame I and a steel frame II are fixedly connected with a top steel frame, the lower ends of the steel frame I and the steel frame II are fixedly connected with an intermediate deck layer, the lower frame door is divided into a vertical steel frame III, a steel frame IV and a bottom steel frame, the upper ends of the steel frame III and the steel frame IV are fixedly connected with the intermediate deck layer, the lower ends of the steel frame III and the steel frame IV are fixedly connected with the bottom steel frame, sliding grooves are respectively arranged in the upper frame door, the lower frame door and the intermediate deck layer, a gate is movably connected in the sliding grooves, a plurality of lifting lugs are fixedly arranged at the top of the gate, the sliding grooves are matched with the gate, a heat preservation box is further arranged between the upper frame door and the sliding grooves, a pulley block and a suspender are arranged at the upper end of the top steel frame, a power device is arranged on the outer side wall of the steel frame I and the steel frame III, and an anchor chain is connected between the suspender, the power device, the pulley block and the gate. The device has simple overall structure and good heat insulation performance, and reduces the heat loss of equipment and the probability of failure of the furnace door in use.

Description

Intermediate door mechanism

Technical Field

The utility model relates to the technical field of heat treatment equipment, in particular to an intermediate door mechanism.

Background

The heat treatment equipment is equipment for performing heat treatment process operations such as annealing, tempering, quenching, heating and the like on the workpiece. In order to provide the metal workpiece with the required mechanical, physical and chemical properties, heat treatment processes are often necessary in addition to the reasonable choice of materials and various forming processes. Steel is the most widely used material in the mechanical industry, and the microstructure of steel is complex and can be controlled by heat treatment, so heat treatment of steel is the main content of heat treatment of metal. In addition, the mechanical, physical and chemical properties of aluminum, copper, magnesium, titanium and the like and alloys thereof can be changed by heat treatment so as to obtain different service properties. Metal heat treatment is one of the important processes in machine fabrication, and in general, heat treatment does not change the shape and overall chemical composition of a workpiece as compared to other processing processes, but rather imparts or improves the performance of the workpiece by changing the microstructure within the workpiece, or changing the chemical composition of the surface of the workpiece. It is characterized by an improvement in the inherent quality of the workpiece, which is generally not visible to the naked eye.

But the heat loss of the furnace door of the existing multi-layer conveying heat treatment equipment is larger, the product quality and the production efficiency of the product which is fed into the furnace are influenced, because the working environment is bad, the failure rate of the furnace door is high, the service life is short, the maintenance cost of the heat treatment equipment is improved, the heat treatment equipment is not easy to replace, the existing furnace door is easy to shake in the operation process and is unstable, potential safety hazards exist, and great economic losses are brought to construction units and production enterprises.

Disclosure of Invention

(1) Technical problem to be solved

Aiming at the problems that the heat loss of a furnace door of heat treatment equipment in the prior art is large, the failure rate of the furnace door is high, the service life is short, the furnace door is easy to deform and not easy to replace, and the furnace door is easy to shake and unstable in the operation process, the utility model aims to provide the middle door mechanism which can reduce the heat loss of the furnace door of the heat treatment equipment, reduce the failure rate of the furnace door, ensure that the service life is more stable in the operation process and the furnace door is more convenient for maintenance and replacement of workers.

(2) Technical proposal

In order to solve the technical problems, the utility model provides an intermediate door mechanism, which comprises a frame door, a power device, a pulley block, a gate and an anchor chain, wherein the frame door is divided into an upper frame door and a lower frame door, the upper frame door is divided into a top steel frame, a vertical steel frame I and a vertical steel frame II, the upper ends of the steel frame I and the steel frame II are fixedly connected with the top steel frame, the lower ends of the steel frame I and the steel frame II are fixedly connected with an intermediate deck layer, the lower frame door is divided into a vertical steel frame III, a steel frame IV and a bottom steel frame, the upper ends of the steel frame III and the steel frame IV are fixedly connected with the intermediate deck layer, the lower ends of the steel frame III and the steel frame IV are fixedly connected with the bottom steel frame, sliding grooves are respectively arranged in the upper frame door, the lower frame door and the intermediate deck layer, a gate is movably connected in the sliding grooves, a plurality of lifting lugs are fixedly arranged at the top of the gate, the sliding grooves are matched with the gate, a heat preservation box is further arranged between the upper frame door and the sliding grooves, the upper end of the top steel frame is provided with a pulley block and a hanging rod, the power device is arranged on the outer side walls of the steel frame I and the steel frame III, the power device is connected with the middle deck layer.

As a preferable scheme of the middle door mechanism, the power device is divided into an air cylinder, an air cylinder telescopic rod and an air cylinder joint, one end of the air cylinder telescopic rod is fixedly connected with the air cylinder joint, the upper end of the air cylinder is fixedly connected with the steel frame I through a bolt, and the lower end of the air cylinder is fixedly connected with the steel frame III through a bolt.

As a preferable scheme of the intermediate door mechanism, the number of lifting lugs at the top of the gate with the refractory high-temperature-resistant material layer on the surface of the gate is two, namely the lifting lugs I and the lifting lugs II, which are symmetrically distributed about the axis of the gate, the distance between the two axes of the lifting lugs I and the lifting lugs II is 2 meters, and the refractory high-temperature-resistant material is arranged on the surface of the gate, so that the fault probability of the gate is reduced, the service life is prolonged, and the gate can play a good role in heat insulation and reduce heat loss in the use process.

As a preferable scheme of the middle door mechanism, the pulley block consists of three fixed pulleys, namely a pulley I, a pulley II and a pulley III, wherein the pulley I, the pulley II and the pulley III are respectively and rotatably connected with bearings, the pulley I, the pulley II and the pulley III are fixedly connected with a top steel frame through bearing seats rotatably connected with the bearings, a vertical tangent line on the left side of the pulley I is positioned on the right side of an axis of a cylinder joint, the right side of the pulley II is tangent with an axis of a lifting lug I, and the right side of the pulley III is tangent with an axis of the lifting lug II.

As a preferable scheme of the middle door mechanism, the top steel frame is provided with the pore canal for the anchor chain to pass through, the axis of the suspender is positioned at the left side of the axis of the air cylinder joint, the inner part of the lower frame door is filled with a heat preservation wall formed by heat preservation cotton, the upper end of the heat preservation wall is flush with the steel frame III and the steel frame IV and is attached to the middle deck layer, the lower end of the heat preservation wall is attached to the upper end of the gate at the initial moment, the heat transfer performance of steel is reduced, the effect of reducing the heat loss of the furnace door is achieved, and the sliding groove arranged on the bottom steel frame penetrates through the upper part and the lower part of the bottom steel frame, so that the gate is convenient for workers to maintain and replace.

As a preferable scheme of the middle door mechanism, two anchor chains are respectively an anchor chain I and an anchor chain II, one end of the anchor chain I is fixedly connected with the lifting lug I, and is sequentially connected with the pulley II, the pulley I and the cylinder connector in a transmission way, then the other end of the anchor chain I is fixedly connected with the lifting lug II, and is sequentially connected with the pulley III, the pulley I and the cylinder connector in a transmission way, and then the other end of the anchor chain I is fixedly connected with the lifting lug II.

(3) Advantageous effects

Compared with the prior art, the utility model has the beneficial effects that:

1. the utility model provides a middle door mechanism, wherein a fire-resistant and high-temperature-resistant material is arranged on the surface of a gate, so that the fault probability of a furnace door in a severe environment is reduced, the service life is prolonged, in addition, in the use process, a good heat insulation effect can be achieved, the heat loss is reduced, a heat insulation wall formed by heat insulation cotton is filled in the lower frame door, the upper end of the heat insulation wall is flush with a steel frame III and a steel frame IV and is attached to a middle deck layer, the lower end of the heat insulation wall is attached to the upper end of the gate at the initial moment, the heat transfer performance of steel is reduced, and the effect of reducing the heat loss of the furnace door is achieved. Through the heat preservation box that is equipped with in the upper portion frame door, the heat preservation wall and the gate in the lower part frame door for the gate is when putting down, and heat can be fine save in the frame door inside when flowing in the sliding tray, reduces thermal loss, guarantees the quality of product.

2. According to the middle door mechanism, through the arrangement of the pulley positions, the anchor chains are mostly horizontal and vertical in the running process, so that the stress condition of each part is simpler, the stress and the movement direction of each part are kept consistent, the gate slides in the sliding groove matched with the part, the shaking of the gate is reduced, the abrasion among equipment is reduced, and the stability of the furnace door in running is improved.

3. The utility model provides an intermediate door mechanism, which is convenient for a worker to maintain and replace by arranging a sliding groove and lowering a gate to enable the gate to pass through the sliding groove arranged on a bottom steel frame when the gate is deformed by heat.

4. The utility model provides an intermediate door mechanism which has the advantages of simple overall structure, good heat insulation performance, reduced equipment heat loss and reduced probability of failure of a furnace door in use, more stable operation, longer service life and convenience for maintenance and replacement of staff.

Drawings

The utility model is described in detail below with reference to the drawings and the detailed description;

fig. 1 is a schematic diagram of the front view structure of the present utility model.

Fig. 2 is an enlarged view of the upper part of the present utility model.

Fig. 3 is a schematic left-view structure of the present utility model.

Fig. 4 is a schematic diagram showing the front view of the thermal insulation box and the thermal insulation wall according to the utility model.

Fig. 5 is a schematic diagram of the bearing and bearing housing of the present utility model in elevation.

The marks in the drawings are: 1. an upper frame door; 100. a top steel frame, 101, steel frame one; 102. a second steel frame; 2. a lower frame door; 200. thirdly, a steel frame; 201. fourth, a steel frame; 202. a bottom steel frame; 3. an intermediate deck layer; 4. A power device; 400. a cylinder; 401. a cylinder telescopic rod; 402. a cylinder joint; 403. a bolt; 5. pulley block; 500. a pulley I; 501. a second pulley; 502. a third pulley; 503. a bearing; 504. a bearing seat; 6. a sliding groove; 7. a gate; 700. lifting lug I; 701. lifting lugs II; 8. an anchor chain I; 9. an anchor chain II; 10. A boom; 11. And a heat preservation box.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

As shown in fig. 1-5, the utility model provides an intermediate door mechanism, which comprises a frame door, a power device 4, a pulley block 5, a gate 7 and an anchor chain, wherein the frame door is divided into an upper frame door 1 and a lower frame door 2, the upper frame door 1 is divided into a top steel frame 100, a vertical steel frame I101 and a steel frame II 102, the upper ends of the steel frame I101 and the steel frame II 102 are fixedly connected with the top steel frame 100, the lower ends are fixedly connected with an intermediate veneer layer 3, the top steel frame 100 is also provided with a duct for the anchor chain to pass through, the lower frame door 2 is divided into a vertical steel frame III 200, a steel frame IV 201 and a bottom steel frame 202, the upper ends of the steel frame III 200 and the steel frame IV 201 are fixedly connected with the intermediate veneer layer 3, the lower ends are fixedly connected with the bottom steel frame 202, the lower frame door 2 is internally filled with a heat insulation wall formed by heat insulation cotton, the heat insulation wall ends are flush with the steel frame III 200 and the steel frame IV 201 and are jointed with the intermediate veneer layer 3, the lower end of the heat preservation wall is attached to the upper end of the gate 7 at the initial moment, sliding grooves 6 are formed in the upper frame door 1, the lower frame door 2 and the middle deck layer 3, the sliding grooves 6 formed in the bottom steel frame 202 penetrate through the bottom steel frame 202 up and down, the gate 7 is movably connected in the sliding grooves 6, the gate 7 is 2.2 meters high and 2.6 meters wide, a fire-resistant and high-temperature-resistant material layer is arranged on the surface of the gate 7, two lifting lugs are respectively arranged at the top of the gate 7, the lifting lugs 700 and 701 are symmetrically distributed about the axis of the gate 7, the distance between the two 701 axes of the lifting lugs 700 and 701 is 2 meters, the sliding grooves 6 and the gate 7 are adapted, a heat preservation box 11 is further arranged between the upper frame door 1 and the sliding grooves 6, the section of the heat preservation box 11 is inverted concave, a pulley block 5 and a hanging rod 10 are arranged at the upper end of the top steel frame 100, the axis of the hanging rod 10 is positioned at the left side of the axis of the cylinder joint 402, the power device 4 is arranged on the outer side walls of the first steel frame 101 and the third steel frame 200, the power device 4 is divided into an air cylinder 400, an air cylinder telescopic rod 401 and an air cylinder connector 402, one end of the air cylinder telescopic rod 401 is fixedly connected with the air cylinder 400, the other end of the air cylinder telescopic rod is fixedly connected with the air cylinder connector 402, the upper end of the air cylinder 400 is fixedly connected with the first steel frame 101 through a bolt 403, the lower end of the air cylinder 400 is fixedly connected with the third steel frame through a bolt 403, and an anchor chain is connected among the suspender 10, the power device 4, the pulley block 5 and the gate 7.

In this embodiment, the pulley block 5 is formed by three fixed pulley blocks 5, namely, a pulley one 500, a pulley two 501 and a pulley three 502, wherein the pulley one 500, the pulley two 501 and the pulley three 502 are respectively and rotatably connected with a bearing 503, and are fixedly connected with the top steel frame 100 through a bearing seat 504 rotatably connected with the bearing 503, a vertical tangential line on the left side of the pulley one 500 is positioned on the right side of the axis of the cylinder joint 402, the right side of the pulley two 501 is tangential with the axis of the lifting lug one 700, and the right side of the pulley three 502 is tangential with the axis of the lifting lug two 701.

In this embodiment, two anchor chains are respectively an anchor chain one 8 and an anchor chain two 9, one end of the anchor chain one 8 is fixedly connected with the lifting lug one 700, and is sequentially in transmission connection with the pulley two 501, the pulley one 500 and the cylinder joint 402, then the other end is fixedly connected with the lifting rod 10, one end of the anchor chain two 9 is fixedly connected with the lifting lug two 701, and is sequentially in transmission connection with the pulley three 502, the pulley one 500 and the cylinder joint 402, then the other end is fixedly connected with the lifting rod 10

The working principle of the utility model is as follows:

when the device is used, firstly, materials are conveyed to a door opening of an intermediate door mechanism, at the initial moment, the bottom of a gate 7 passes through a bottom steel frame 202, the bottom of the gate 7 is positioned below the lower surface of the bottom steel frame 202, then a cylinder 400 is started, a cylinder telescopic rod 401 is shortened, so that a cylinder joint 402 is driven to descend, a first anchor chain 8 and a second anchor chain 9 are pulled, the first anchor chain 8 and the second anchor chain 9 are fixedly connected to a hanging rod 10, the gate 7 is driven to move upwards in a sliding groove 6, and as the cylinder joint 402 plays a role of a fixed pulley, each anchor chain corresponds to two anchor chains which are connected with the first anchor chain, the cylinder joint 402 descends for every meter, the gate 7 is synchronously lifted for two meters, when the bottom of the gate 7 ascends to the bottom of the gate 7 and exceeds the bottom of a heat preservation wall, the materials are conveyed into the intermediate door at the moment, then the cylinder 400 is started, the cylinder telescopic rod 401 is stretched, so that the bottom of the gate 7 is lowered, the bottom of the gate 7 is lower than the bottom of the bottom steel frame 202, at the moment, the cylinder 400 is stopped, the tightness is the best, the cylinder 400 is closed, then the materials inside the heat treatment is carried out, and after the heat treatment is completed, the heat treatment is finished, and the gate 7 is lifted, and the materials are lifted. The above is the complete working principle of the utility model.

According to the utility model, the fire-resistant and high-temperature-resistant materials are arranged on the surface of the gate 7, so that the failure probability of the furnace door in a severe environment is reduced, the service life is prolonged, the heat preservation box 11 arranged on the upper frame door 1, the heat preservation wall in the lower frame door 2 and the gate 7 are adopted, so that when the gate 7 is put down, heat can be well preserved in the frame door when flowing in the sliding groove 6, the heat loss is reduced, the quality of products is ensured, the anchor chains are mostly horizontal and vertical in the running process through the arrangement of pulley positions, the stress condition of each part is simpler, the stress and the movement direction of each part are kept consistent, the gate 7 slides in the sliding groove 6 matched with the heat preservation box, the shaking of the gate 7 is reduced, the abrasion between equipment is reduced, and the stability of the furnace door in the running process is improved. Through the setting of sliding tray 6, when gate 7 thermal deformation, the sliding tray 6 that the descending gate 7 made gate 7 set up through bottom steelframe 202 makes things convenient for the staff to maintain and replace.

The heat insulation furnace door has the advantages of simple overall structure, good heat insulation performance, reduced heat loss of equipment and reduced probability of failure of the furnace door in use, more stable operation, longer service life and convenience for maintenance and replacement of workers

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The middle door mechanism is characterized by comprising a frame door, a middle deck layer (3), a power device (4), a pulley block (5), a gate (7) and an anchor chain, wherein the frame door is divided into an upper frame door (1) and a lower frame door (2), the upper frame door (1) is divided into a top steel frame (100), a vertical steel frame I (101) and a steel frame II (102), the upper ends of the steel frame I (101) and the steel frame II (102) are fixedly connected with the top steel frame (100), and the lower ends of the steel frame I (101) and the steel frame II (102) are fixedly connected with the middle deck layer (3); the lower frame door (2) is divided into a vertical steel frame III (200), a steel frame IV (201) and a bottom steel frame (202), the upper ends of the steel frame III (200) and the steel frame IV (201) are fixedly connected with the middle deck layer (3), and the lower ends of the steel frame III (200) and the steel frame IV (201) are fixedly connected with the bottom steel frame (202); the utility model discloses a thermal insulation door for a building, including upper portion frame door (1), lower part frame door (2) and middle deck layer (3), swing joint has gate (7) in sliding tray (6), gate (7) top is fixed and is equipped with a plurality of lugs, sliding tray (6) and gate (7) looks adaptation, still be equipped with heat preservation box (11) between upper portion frame door (1) and sliding tray (6), top steelframe (100) upper end is equipped with assembly pulley (5) and jib (10), be equipped with power device (4) on steelframe one (101) and steelframe three (200) lateral wall, be connected with the anchor chain between jib (10), power device (4), assembly pulley (5) and gate (7).

2. The middle door mechanism according to claim 1, wherein the power device (4) is divided into a cylinder (400), a cylinder telescopic rod (401) and a cylinder joint (402), one end of the cylinder telescopic rod (401) is fixedly connected with the cylinder (400), the other end of the cylinder telescopic rod is fixedly connected with the cylinder joint (402), the upper end of the cylinder (400) is fixedly connected with the first steel frame (101) through a bolt (403), and the lower end of the cylinder telescopic rod is fixedly connected with the third steel frame (200) through a bolt (403).

3. An intermediate door mechanism according to claim 2, wherein a refractory material layer is arranged on the surface of the gate (7), the number of lifting lugs at the top of the gate (7) is two, namely a first lifting lug (700) and a second lifting lug (701), and the first lifting lug (700) and the second lifting lug (701) are symmetrically distributed about the axis of the gate (7).

4. A middle door mechanism according to claim 3, wherein the pulley block (5) consists of three fixed pulleys, namely a pulley one (500), a pulley two (501) and a pulley three (502), wherein the pulley one (500), the pulley two (501) and the pulley three (502) are respectively connected with a bearing (503) in a rotating way, and are fixedly connected with a top steel frame (100) through a bearing seat (504) rotationally connected with the bearing (503), the vertical tangent line on the left side of the pulley one (500) is positioned on the right side of the axis of the cylinder joint (402), the right side of the pulley two (501) is tangent with the axis of the lifting lug one (700), and the right side of the pulley three (502) is tangent with the axis of the lifting lug two (701).

5. The middle door mechanism according to claim 4, wherein the top steel frame (100) is provided with a hole channel for the anchor chain to pass through, the axis of the hanging rod (10) is positioned at the left side of the axis of the cylinder joint (402), the lower frame door (2) is internally filled with a heat insulation wall formed by heat insulation cotton, the upper end of the heat insulation wall is flush with the steel frame III (200) and the steel frame IV (201) and is attached to the middle veneer layer (3), the lower end of the heat insulation wall is attached to the upper end of the gate (7) at the initial moment, and the sliding groove (6) arranged on the bottom steel frame (202) penetrates through the bottom steel frame (202) up and down.

6. An intermediate door mechanism according to claim 5, wherein the number of the anchor chains is two, namely, an anchor chain one (8) and an anchor chain two (9), one end of the anchor chain one (8) is fixedly connected with the lifting lug one (700), sequentially in transmission connection with the pulley two (501), the pulley one (500) and the cylinder joint (402), the other end is fixedly connected with the lifting rod (10), one end of the anchor chain two (9) is fixedly connected with the lifting lug two (701), sequentially in transmission connection with the pulley three (502), the pulley one (500) and the cylinder joint (402), and the other end is fixedly connected with the lifting rod (10).

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