A kind of automatic unloading safety door at the opening of a chute

Abstract

The utility model provides an automatic ore unloading safety door at the mouth of a chute, which belongs to the technical field of mine safety doors and aims to solve the problem that dust and impurities are constantly accumulated and attached at the door gap, which is very likely to affect the sealing performance of the safety door to the mouth of the chute when the safety door is combined. The utility model comprises a supporting frame, two limiting auxiliary frames are respectively fixedly connected to the outer side of the supporting frame; two safety door bodies are respectively hinged on the left and right sides of the inner end of the supporting frame; a cleaning auxiliary mechanism is arranged between the supporting frame and the safety door body; a driving auxiliary structure is arranged on the outer side of the limiting auxiliary frame; an opening and closing control mechanism is arranged between the driving auxiliary structure and the connecting shaft; automatic cleaning of the safety door body is realized, accumulation and attachment of dust and impurities at the door gap are avoided, the sealing performance of the safety door body to the mouth of the chute after the safety door body is combined is improved, and the protective effect of the device on the entrance of the chute is further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of mine safety doors, and more specifically, particularly relates to an automatic ore unloading safety door at the opening of a chute mine. Background Art

[0002] When unloading at the mouth of a chute, transport rails and conveyor vehicles are often used to achieve an automatic unloading process for the goods. During the unloading process, safety doors are often used to prevent people or objects from accidentally falling into the chute and causing safety accidents.

[0003] As shown in the existing application number CN202321919051.5, a mine safety door is disclosed, comprising two safety door bodies, the top and bottom of the opposite sides of the front sides of the two safety door bodies are fixedly connected with hinges, the front side of one of the safety door bodies is fixedly connected with a locking block, the right side of the locking block is provided with a plug hole, and the front side of the other safety door body is fixedly connected with a driving shell, the front side of the driving shell is fixedly connected with a locking assembly, and the locking assembly includes a tooth plate, the top and bottom of the front side of the safety door body are provided with through holes, the two sides of the opposite sides of the inner cavity of the two through holes are provided with sliding grooves, and the inner cavities of the two through holes are movably connected with dustproof plates. The utility model solves the problems of the existing mine safety doors lacking certain safety and firmness and poor locking effect by arranging the coordinated use of safety door bodies, hinges, locking blocks, driving shells, locking assemblies, sliding grooves, dustproof plates, wire meshes and positioning holes.

[0004] Based on the above, there is a large amount of dust inside the chute. During the long-term use of the safety door, as dust and impurities continue to accumulate and adhere to the door gap, when the safety door is merged, it is very easy to affect the sealing performance of the safety door to the chute wellhead, as well as the protective effect of the safety door on the chute entrance. Utility Model Content

[0005] In order to solve the above-mentioned technical problems, the utility model provides an automatic ore unloading safety door at the mouth of a chute to solve the problem of a large amount of dust inside the chute. During the long-term use of the safety door, as dust and impurities continue to accumulate and adhere to the door gap, when the safety door is merged, it is very easy to affect the sealing performance of the safety door to the mouth of the chute, as well as the protective effect of the safety door on the entrance of the chute.

[0006] The purpose and effect of the automatic ore unloading safety door at the entrance of a chute mine in the utility model are achieved by the following specific technical means:

[0007] A safety door for automatic unloading of ore at the entrance of a chute mine, comprising a supporting frame, a limiting auxiliary frame, a safety door body, a cleaning auxiliary mechanism, a driving auxiliary structure and an opening and closing control mechanism, wherein the limiting auxiliary frames are two, and the two limiting auxiliary frames are respectively fixedly connected to the outer side of the supporting frame; the safety door body is two, and the two safety door bodies are respectively hinged on the left and right sides of the inner end of the supporting frame; the outer end of the safety door body is coaxially fixedly connected with a connecting shaft; the cleaning auxiliary mechanism is arranged between the supporting frame and the safety door body; the cleaning auxiliary mechanism comprises: a cleaning auxiliary frame, the cleaning auxiliary frame has two, and the two cleaning auxiliary frames have two. The auxiliary frames are slidably arranged on the inner end faces of the two safety door bodies, and the upper end of the cleaning auxiliary frame is an inclined block structure; the alignment position of the safety door body and the inclined block is provided with an auxiliary assisting groove; the driving auxiliary structure is arranged on the outer side of the limiting auxiliary frame, and the driving auxiliary structure includes: a positioning auxiliary frame, there are two positioning auxiliary frames, and the two positioning auxiliary frames are slidably arranged on the inner sides of the two limiting auxiliary frames respectively; the opening and closing control mechanism is arranged between the driving auxiliary structure and the connecting shaft; the opening and closing control machine includes: a limiting frame, there are two limiting frames, and the two limiting frames are respectively arranged at the inner ends of the two limiting auxiliary frames.

[0008] Furthermore, a driving auxiliary plate is hingedly provided on the outer side of the limiting frame; an elastic reset member is fixedly connected between the driving auxiliary plate and the limiting frame; and a guide shaft is fixedly connected to the outer side of the inner end of the limiting frame.

[0009] Furthermore, the opening and closing control mechanism includes: a transmission auxiliary shaft, wherein there are two transmission auxiliary shafts, and the two transmission auxiliary shafts are respectively arranged vertically and rotatably on the outsides of the two connecting shafts; a driving auxiliary shaft is arranged vertically and rotatably on the outer ends of the transmission auxiliary shafts;

[0010] A driving gear is coaxially fixedly connected to the outer side of the inner end surface of the driving auxiliary shaft; a driving rack is slidably arranged on the outer end of the driving gear; the driving racks on the same left and right sides are meshed with the driving gear;

[0011] A traction spring is fixedly connected between the driving racks and the guide shaft on the same left and right sides; a positioning auxiliary groove is provided on the inner side of the limiting auxiliary frame at a position aligned with the driving rack.

[0012] Furthermore, a transmission worm is coaxially fixedly connected to the outer end surface of the auxiliary drive shaft, and the thread pitches of the transmission worms on both sides are the same and the rotation directions are opposite; a scroll elastic member is fixedly connected between the auxiliary drive shaft and the limit auxiliary frame;

[0013] The outer end of the transmission worm is rotatably provided with a transmission worm wheel, and the two transmission worm wheels are coaxially fixedly connected with the two transmission auxiliary shafts; the transmission worms and the transmission worm wheels on the same left and right sides are meshed with each other;

[0014] A bevel gear transmission assembly is arranged between the transmission auxiliary shaft and the connecting rotating shaft.

[0015] Furthermore, the outer end surface of the cleaning auxiliary frame is fixedly connected to a positioning auxiliary frame;

[0016] The cleaning auxiliary mechanism also includes: a limiting auxiliary shaft, which is slidably arranged on the inner end of the cleaning auxiliary frame; an elastic traction member is fixedly connected between the limiting auxiliary shaft and the cleaning auxiliary frame; and a guide auxiliary block with a convex cross-section is concentrically fixedly connected to the inner end surface of the limiting auxiliary shaft.

[0017] Furthermore, a traction rope is fixedly connected to the outer end of the position-limiting auxiliary shaft; a reel is fixedly connected to the outer end of the traction rope; and the reel is rotatably connected to the support frame by a volute spring.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The utility model, when the conveying vehicle approaches the safety door body, utilizes the force of the conveying vehicle when traveling to drive the safety door body to open automatically. When the conveying vehicle passes through the safety door body, the safety door body closes automatically, which simplifies the operation steps when transporting and unloading goods, and further improves the operation convenience and use flexibility of the device in the actual application process.

[0020] When the utility model is in use, the force exerted when the safety door body is flipped outward to open is utilized to make the cleaning auxiliary frame slide up and down on the side of the inner end surface of the safety door body, thereby realizing automatic cleaning of the safety door body, avoiding the accumulation of dust and impurities at the door gap, improving the sealing performance of the safety door body to the chute shaft mouth after the safety door body is combined, and further enhancing the protective effect of the device on the chute shaft entrance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an overall isometric structural schematic diagram of the utility model.

[0022] Figure 2 It is a schematic diagram of the installation structure of the opening and closing control mechanism and the safety door body of the utility model.

[0023] Figure 3 It is a schematic diagram of the installation structure of the opening and closing control mechanism and the auxiliary driving structure of the utility model.

[0024] Figure 4 It is a schematic diagram of the installation structure of the cleaning auxiliary frame and the safety door main body of the utility model.

[0025] Figure 5 It is a schematic cross-sectional structural diagram of the connection between the cleaning auxiliary mechanism and the safety door body of the utility model.

[0026] Figure 6 The utility model Figure 5 Schematic diagram of the local enlarged structure at point A in the middle.

[0027] Figure 7 It is a schematic diagram of the installation structure of the cleaning auxiliary frame and the limiting auxiliary shaft of the utility model.

[0028] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0029] 1. Support frame; 2. Limit auxiliary frame; 3. Safety door body; 301. Connecting shaft; 4. Cleaning auxiliary frame; 401. Positioning auxiliary frame; 402. Limit auxiliary shaft; 403. Elastic traction member; 404. Guide auxiliary block; 405. Traction rope; 406. Reel; 5. Drive auxiliary plate; 501. Limit frame; 502. Elastic reset member; 503. Guide shaft; 504. Traction spring; 6. Transmission auxiliary shaft; 601. Bevel gear transmission assembly; 602. Drive auxiliary shaft; 603. Drive rack; 604. Drive gear; 605. Transmission worm; 606. Transmission worm wheel; 607. Scroll elastic member. DETAILED DESCRIPTION

[0030] The implementation of the utility model is further described in detail below in conjunction with the drawings and examples.

[0031] Embodiment 1:

[0032] As attached Figure 1 To Attachment Figure 3 As shown:

[0033] The utility model provides an automatic unloading safety door for a mine chute, comprising a supporting frame 1, a limiting auxiliary frame 2, a safety door body 3, a cleaning auxiliary mechanism, a driving auxiliary structure and an opening and closing control mechanism, wherein there are two limiting auxiliary frames 2, and the two limiting auxiliary frames 2 are respectively fixedly connected to the outer side of the supporting frame 1; there are two safety door bodies 3, and the two safety door bodies 3 are respectively hinged to the left and right sides of the inner end of the supporting frame 1; the outer end of the safety door body 3 is coaxially fixedly connected with a connecting shaft 301; the cleaning auxiliary mechanism is arranged between the supporting frame 1 and the safety door body 3; the cleaning auxiliary mechanism comprises: a cleaning auxiliary frame 4, and the two cleaning auxiliary frames 4 have two cleaning auxiliary frames 4. They are respectively slidably arranged on the inner end faces of the two safety door bodies 3, and the upper end of the cleaning auxiliary frame 4 is an inclined block structure; an assisting inclined groove is arranged at the alignment position between the safety door body 3 and the inclined block; the driving auxiliary structure is arranged on the outer side of the limiting auxiliary frame 2, and the driving auxiliary structure includes: a positioning auxiliary frame 401, there are two positioning auxiliary frames 401, and the two positioning auxiliary frames 401 are respectively slidably arranged on the inner sides of the two limiting auxiliary frames 2; the opening and closing control mechanism is arranged between the driving auxiliary structure and the connecting shaft 301; the opening and closing control machine includes: a limiting frame 501, there are two limiting frames 501, and the two limiting frames 501 are respectively arranged at the inner ends of the two limiting auxiliary frames 2.

[0034] The outer side of the limiting frame 501 is hinged with a driving auxiliary plate 5 ; an elastic reset member 502 is fixedly connected between the driving auxiliary plate 5 and the limiting frame 501 ; and the outer side of the inner end of the limiting frame 501 is fixedly connected with a guide shaft 503 .

[0035] The opening and closing control mechanism includes: a transmission auxiliary shaft 6, which has two transmission auxiliary shafts 6, and the two transmission auxiliary shafts 6 are respectively arranged vertically and rotatably on the outside of the two connecting shafts 301; a driving auxiliary shaft 602 is arranged vertically and rotatably on the outer end of the transmission auxiliary shaft 6;

[0036] A driving gear 604 is coaxially fixedly connected to the outer side of the inner end surface of the driving auxiliary shaft 602; a driving rack 603 is slidably provided on the outer end of the driving gear 604; the driving racks 603 and the driving gear 604 on the same left and right sides are meshed with each other;

[0037] A traction spring 504 is fixedly connected between the driving rack 603 and the guide shaft 503 on the same left and right sides; a positioning auxiliary groove is provided on the inner side of the limiting auxiliary frame 2 at a position aligned with the driving rack 603 .

[0038] The outer end surface of the auxiliary drive shaft 602 is coaxially fixedly connected with a transmission worm 605, and the thread pitches of the transmission worms 605 on both sides are the same and the rotation direction is opposite; a scroll elastic member 607 is fixedly connected between the auxiliary drive shaft 602 and the limit auxiliary frame 2;

[0039] A transmission worm wheel 606 is rotatably arranged at the outer end of the transmission worm 605, and the two transmission worm wheels 606 are coaxially fixedly connected with the two transmission auxiliary shafts 6; the transmission worm 605 and the transmission worm wheel 606 on the same side on the left and right are meshed with each other;

[0040] A bevel gear transmission assembly 601 is provided between the transmission auxiliary shaft 6 and the connecting shaft 301 .

[0041] The specific usage and function of this embodiment are as follows:

[0042] When the utility model is in use, the support frame 1 is fixedly connected to the inner side of the wellhead of the ore chute. In the process of unloading by using the conveying vehicle and the conveying guide rail, when the outer end of the conveying vehicle is in contact with the driving auxiliary plate 5, the driving auxiliary plate 5 and the driving rack 603 are pushed to slide synchronously due to the force of the conveying vehicle sliding. During the sliding process of the driving rack 603, the driving gear 604 and the driving auxiliary shaft 602 are pushed to rotate simultaneously. During the rotation of the driving auxiliary shaft 602, the transmission worm 605 drives the transmission worm wheel 606 and the transmission auxiliary shaft 6 to rotate. During the rotation of the transmission auxiliary shaft 6, the bevel gear transmission assembly 601 pushes the safety door bodies 3 at both ends to flip outward synchronously; after the driving rack 603 slides to the specified position of the positioning auxiliary groove to position the driving gear 604, the guide shaft 503 is pushed to slide inside the driving rack 603 during the sliding process of the conveying vehicle until the conveying vehicle passes through the safety door, and the scroll elastic member 607 automatically resets the driving gear 604 to automatically close the safety door body 3.

[0043] Embodiment 2:

[0044] On the basis of the first embodiment, Figures 4 to 7 As shown:

[0045] Among them, the outer end surface of the cleaning auxiliary frame 4 is fixedly connected with a positioning auxiliary frame 401;

[0046] The cleaning auxiliary mechanism also includes: a limiting auxiliary shaft 402, which is slidably arranged on the inner end of the cleaning auxiliary frame 4; an elastic traction member 403 is fixedly connected between the limiting auxiliary shaft 402 and the cleaning auxiliary frame 4; and a guide auxiliary block 404 with a convex cross-section is concentrically fixedly connected to the inner end face of the limiting auxiliary shaft 402.

[0047] Among them, the outer end of the limiting auxiliary shaft 402 is fixedly connected with a traction rope 405; the outer end of the traction rope 405 is fixedly connected with a winding shaft 406; the winding shaft 406 is rotatably connected to the support frame 1 by a volute spring.

[0048] The specific usage and function of this embodiment are as follows:

[0049] When the utility model is in use, when the safety door body 3 is flipped outward and opened, the traction rope 405 drags the positioning auxiliary frame 401 to slide upward. During the upward sliding of the positioning auxiliary frame 401, the power-assisting inclined groove pushes the cleaning auxiliary frame 4 to slide outward synchronously, so that the cleaning auxiliary frame 4 and the positioning auxiliary frame 401 are in contact with the sides of the inner end surface of the safety door body 3. During the simultaneous upward sliding of the positioning auxiliary frame 401 and the cleaning auxiliary frame 4, automatic cleaning of the inner end surface of the safety door body 3 is achieved.

Claims

1. An automatic unloading safety door for a chute shaft, comprising a support frame, two limit auxiliary frames, two safety door bodies, a cleaning auxiliary mechanism, a driving auxiliary structure and an opening and closing control mechanism, characterized in that: The two limit auxiliary frames are respectively fixedly connected to the outer side of the supporting frame; the two safety door bodies are respectively hinged on the left and right sides of the inner end of the supporting frame; the outer ends of the safety door bodies are coaxially fixedly connected with a connecting shaft; the cleaning auxiliary mechanism is arranged between the supporting frame and the safety door body; the cleaning auxiliary mechanism includes: two cleaning auxiliary frames, the two cleaning auxiliary frames with inclined block structures at the upper ends are respectively slidably arranged on the inner end surfaces of the two safety door bodies; the alignment positions of the safety door bodies and the inclined blocks are provided with power-assisting inclined grooves; the driving auxiliary structure is arranged on the outer side of the limit auxiliary frame, and the driving auxiliary structure includes: two positioning auxiliary frames, the two positioning auxiliary frames are respectively slidably arranged on the inner sides of the two limit auxiliary frames; the opening and closing control mechanism is arranged between the driving auxiliary structure and the connecting shaft; the opening and closing control machine includes: a limit frame, there are two limit frames, and the two limit frames are respectively arranged at the inner ends of the two limit auxiliary frames.

2. The automatic ore unloading safety door at the opening of a chute as claimed in claim 1, characterized in that: A driving auxiliary plate is hingedly provided on the outer side of the limiting frame; an elastic reset member is fixedly connected between the driving auxiliary plate and the limiting frame; and a guide shaft is fixedly connected to the outer side of the inner end of the limiting frame.

3. The automatic ore unloading safety door at the opening of a chute as claimed in claim 2, characterized in that: The opening and closing control mechanism comprises: two transmission auxiliary shafts, the two transmission auxiliary shafts are respectively arranged vertically and rotatably on the outside of the two connecting shafts; the outer ends of the transmission auxiliary shafts are vertically and rotatably provided with a driving auxiliary shaft; A driving gear is coaxially fixedly connected to the outer side of the inner end surface of the driving auxiliary shaft; a driving rack is slidably arranged on the outer end of the driving gear; the driving racks on the same left and right sides are meshed with the driving gear; A traction spring is fixedly connected between the driving racks and the guide shaft on the same left and right sides; a positioning auxiliary groove is provided on the inner side of the limiting auxiliary frame at a position aligned with the driving rack.

4. The automatic ore unloading safety door at the opening of a chute as claimed in claim 3, characterized in that: The outer end surface of the auxiliary drive shaft is coaxially fixedly connected with a transmission worm, and the thread pitches of the transmission worms on both sides are the same and the rotation directions are opposite; a scroll elastic member is fixedly connected between the auxiliary drive shaft and the limit auxiliary frame; The outer end of the transmission worm is rotatably provided with a transmission worm wheel, and the two transmission worm wheels are coaxially fixedly connected with the two transmission auxiliary shafts; the transmission worms and the transmission worm wheels on the same left and right sides are meshed with each other; A bevel gear transmission assembly is arranged between the transmission auxiliary shaft and the connecting rotating shaft.

5. The automatic ore unloading safety door at the opening of a chute as claimed in claim 1, characterized in that: The outer end surface of the cleaning auxiliary frame is fixedly connected with a positioning auxiliary frame; The cleaning auxiliary mechanism also includes: a limiting auxiliary shaft, which is slidably arranged on the inner end of the cleaning auxiliary frame; an elastic traction member is fixedly connected between the limiting auxiliary shaft and the cleaning auxiliary frame; and a guide auxiliary block with a convex cross-section is concentrically fixedly connected to the inner end surface of the limiting auxiliary shaft.

6. The automatic ore unloading safety door at the opening of a chute as claimed in claim 5, characterized in that: The outer end of the position-limiting auxiliary shaft is fixedly connected with a traction rope; the outer end of the traction rope is fixedly connected with a reel; the reel is rotatably connected to the support frame by a volute spring.

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