Flip-belt structure storage bin and tunnel belt conveyor

Abstract

The present invention relates to the technical field of belt conveyor. A belt storage bin with a belt-turning structure includes two relatively arranged first and second belt-turning units, a redirecting unit, a sliding tensioning unit, and a tensioning drive unit. The first belt-turning unit and the second belt-turning unit are used to flip the conveyor belt between the two to a vertical arrangement; the redirecting unit and the sliding tensioning unit are relatively arranged and arranged between the first and second belt-turning units; the tensioning drive unit drives the redirecting unit and the sliding tensioning unit to move relative to each other; a plurality of rollers are vertically arranged on the redirecting unit and the sliding tensioning unit, and the vertically arranged conveyor belt is coiled and stored between the plurality of rollers. A tunnel belt conveyor is also disclosed. The present application can ensure that when a belt storage bin is arranged at a small turn, the situation in which the multi-layer conveyor belt in the belt storage bin deviates back and forth due to the centripetal force is avoided, thereby meeting the requirements for the normal operation of the belt conveyor system.

Description

Technical Field

[0001] The present invention relates to the technical field of belt conveyor conveyance, and in particular to a belt storage bin with a belt-turning structure and a tunnel belt conveyor. Background Art

[0002] In the field of tunnel construction, when there is a small turn at the start of the shield, due to the centripetal force of the belt at the turn, the conventional belt storage bin has no effective measures to overcome the centripetal force, and the belt deviates seriously. In addition, there are many layers of belts in the storage bin, and the deviation cannot be adjusted, which seriously affects the normal operation of the belt conveyor system. Therefore, it is necessary to propose a new belt storage bin structure to overcome the above difficulties. Summary of the invention

[0003] The purpose of the present invention is to provide a belt-turning structure belt storage bin and a tunnel belt conveyor in order to address the above-mentioned problems and shortcomings, which can ensure that when the belt storage bin is set at a small turning point, the situation in which the multiple layers of belts in the belt storage bin are not deviated back and forth due to the centripetal force can be avoided, thereby meeting the requirements for the normal operation of the belt conveyor system.

[0004] To achieve the above purpose, the technical solution adopted is:

[0005] A belt storage bin with a belt-turning structure, comprising:

[0006] Two oppositely arranged first belt turning units and second belt turning units, which are used to turn the conveyor belt between the first belt turning unit and the second belt turning unit to a vertical arrangement;

[0007] Redirection unit;

[0008] A slipping and tensioning unit, wherein the redirecting unit and the slipping and tensioning unit are arranged opposite to each other and arranged between the first belt turning unit and the second belt turning unit; and

[0009] A tensioning driving unit, which drives the redirecting unit and the sliding tensioning unit to move relative to each other;

[0010] A plurality of rollers are vertically arranged on the redirection unit and the sliding tensioning unit, and the vertically arranged conveyor belt is coiled and stored between the plurality of rollers.

[0011] According to the belt-turning structure belt storage bin of the present invention, preferably, the first belt-turning unit and the second belt-turning unit both include:

[0012] First bracket;

[0013] two horizontal belt guide rollers disposed on the first bracket;

[0014] a second bracket; and

[0015] Two vertical belt guide rollers are arranged on the second bracket, and the conveyor belt completes flipping and changing direction between the two horizontal belt guide rollers and the two vertical belt guide rollers.

[0016] According to the belt-turning structure belt storage bin of the present invention, preferably, the redirection unit comprises:

[0017] A third bracket; and

[0018] A plurality of redirecting rollers vertically arranged on the third bracket;

[0019] The slip tensioning unit comprises:

[0020] a fourth bracket, the fourth bracket being capable of sliding movement relative to the third bracket; and

[0021] A plurality of tensioning rollers vertically arranged on the fourth bracket;

[0022] The conveyor belt is coiled in sequence between a plurality of the redirecting rollers and a plurality of the tensioning rollers.

[0023] According to the belt storage bin with a belt-turning structure of the present invention, preferably, the plurality of redirecting rollers and the plurality of tensioning rollers are arranged on the same straight line, and the diameters of the plurality of redirecting rollers and the plurality of tensioning rollers decrease sequentially from outside to inside.

[0024] According to the belt-turning structure belt storage bin of the present invention, preferably, a plurality of comb plates are provided on the third bracket and the fourth bracket, and the cross-sections of the third bracket and the fourth bracket are comb-tooth-shaped and staggered; the plurality of redirecting rollers and the plurality of tensioning rollers are respectively arranged at the ends of the comb plates of the third bracket and the fourth bracket.

[0025] According to the belt-flipping structure belt storage bin of the present invention, preferably, a fixed support is provided at the bottom of the redirection unit, and the third bracket is fixedly provided on the fixed support; a sliding support is provided at the bottom of the sliding tensioning unit, and the fourth bracket is slidably provided on the sliding support through a roller or a slider.

[0026] According to the belt-turning structure belt storage bin of the present invention, preferably, the tensioning drive unit comprises:

[0027] Tension bearing;

[0028] a drum on which a steel wire rope is wound, and a movable end of the steel wire rope is connected to the slip tensioning unit; and

[0029] A driving unit drives the reel to be retracted and unreeled.

[0030] According to the belt storage bin with a belt-turning structure of the present invention, preferably, the driving part is a variable frequency drive motor, and a tension sensor is also provided. The tension sensor detects the tension of the conveyor belt and controls the action of the variable frequency drive motor.

[0031] According to the belt-turning structure tape storage bin of the present invention, preferably, at least two groups of redirection units, sliding tensioning units and tensioning drive units are arranged side by side between the first belt-turning unit and the second belt-turning unit, and the tensioning drive units in each group act independently and drive the sliding tensioning units to store or release the tape.

[0032] A tunnel belt conveyor, comprising:

[0033] A belt conveyor frame, on which a conveyor belt matching support plate is arranged;

[0034] A main drive, which is arranged at one end of the belt conveyor frame and drives the conveyor belt to move; and

[0035] As mentioned above, the belt storage bin of the belt-turning structure is arranged at the bottom, side or top of the belt conveyor frame.

[0036] The beneficial effects achieved by adopting the above technical solution are:

[0037] During the construction process of the tunnel small turn, the invention avoids the problem of deviation of the belt storage bin caused by the centripetal force through the vertical U-shaped winding method, improves the adaptability of the belt conveyor to the site, is more practical, and ensures the safety and stability of the belt conveyor operation;

[0038] The present application forms a Möbius strip through two belt turning units, and can selectively use different belt surfaces of the conveyor belt, so that the upper and lower belt surfaces can both be used as bearing surfaces, greatly improving the service life of the belt.

[0039] The conveyor belt of the present application generates strain during the flipping process, thereby destroying the adhesion of the sticky material to the belt, achieving a cleaning effect that can ensure the cleanliness of the conveyor belt and prevent adhesion from affecting the storage and release of the conveyor belt and its service life.

[0040] Through the structural design of the belt turning unit, the redirection unit and the sliding tensioning unit, this application can realize a new belt storage mode, which greatly improves the structural performance and application scope of the entire belt conveyor, can meet the needs of special geological terrain, and is more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings of the embodiments of the present invention, wherein the drawings are only used to illustrate some embodiments of the present invention, but not to limit all embodiments of the present invention thereto.

[0042] Figure 1 Schematic diagram of the structure of a tunnel belt conveyor according to an embodiment of the present invention.

[0043] Figure 2 Schematic diagram of the structure of a belt storage bin with a belt-turning structure according to an embodiment of the present invention.

[0044] Figure 3 Schematic diagram of the structure of the conveyor belt winding according to an embodiment of the present invention.

[0045] Figure 4 Schematic diagram of the structure of a tape turning unit according to an embodiment of the present invention.

[0046] Serial number in the picture:

[0047] 110 is a first belt turning unit, 111 is a first bracket, 112 is a horizontal belt guide roller, 113 is a second bracket, 114 is a vertical belt guide roller, and 120 is a second belt turning unit;

[0048] 200 is a redirection unit, 201 is a fixed support, 202 is a third support, and 203 is a redirection roller;

[0049] 300 is a sliding tensioning unit, 301 is a sliding support, 302 is a fourth bracket, and 303 is a tensioning roller;

[0050] 400 is a tensioning driving unit, 401 is a tensioning support, 402 is a reel, and 403 is a driving unit;

[0051] 500 is the belt conveyor frame, 501 is the main drive;

[0052] 600 is the conveyor belt;

[0053] 700 is a shield machine. DETAILED DESCRIPTION

[0054] The following will be combined with the drawings of specific embodiments of the present invention to clearly and completely describe the exemplary scheme of the embodiment of the present invention. Unless otherwise defined, the technical terms or scientific terms used in the present invention should be the common meanings understood by people with ordinary skills in the field.

[0055] In the description of the present invention, it should be understood that the expressions “first” and “second” are used to describe the various elements of the present invention and do not represent any limitation of order, quantity or importance, but are only used to distinguish one component from another.

[0056] It should be noted that when one element is “connected”, “coupled” or “connected” to another element, it may mean that they are directly connected, coupled or connected, but it should be understood that there may be intermediate elements between the two; that is, the positional relationships of direct connection and indirect connection are covered.

[0057] It should be noted that the use of "a" or "an" and similar words does not necessarily indicate a quantitative limitation. "Include" or "comprising" and similar words mean that the elements or objects preceding the word include the elements or objects listed after the word and their equivalents, but do not exclude other elements or objects.

[0058] It should be noted that terms such as "up", "down", "left" and "right" indicating orientation or positional relationship are only used to indicate relative positional relationship. This is for the convenience of describing the present invention and does not mean that the device or element must have a specific orientation, be constructed and operated in a specific orientation. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0059] See also Figure 1-Figure 4 The present invention discloses a belt storage bin with a belt-turning structure, comprising a first belt-turning unit 110 and a second belt-turning unit 120, a redirecting unit 200, a sliding tensioning unit 300, and a tensioning driving unit 400. The first belt-turning unit 110 and the second belt-turning unit 120 are used to turn the conveyor belt 600 between the first belt-turning unit 110 and the second belt-turning unit 120 into a vertical arrangement. That is, under normal circumstances, the conveyor belt is in a horizontal state because it needs to support materials. In this application, the conveyor belt of the belt storage part needs to be turned to a vertical state for storage, which can not only prevent it from running off, but also realize The cleaning of debris on the surface of the conveyor belt can also form a Möbius loop, so that both sides of the conveyor belt can be used as load-bearing surfaces, thereby increasing its service life; the specific structure of the belt storage part between the two is as follows: the redirection unit 200 and the sliding tensioning unit 300 are relatively arranged and arranged between the first belt turning unit 110 and the second belt turning unit 120; the tensioning drive unit 400 drives the redirection unit 200 and the sliding tensioning unit 300 to move relative to each other; a plurality of rollers are vertically arranged on the redirection unit 200 and the sliding tensioning unit 300, and the vertically arranged conveyor belt 600 is coiled and stored between the plurality of rollers, thereby realizing vertical belt unwinding and storage.

[0060] In the above structure, this embodiment tightens the sliding tensioning unit through the tensioning driving unit 400, thereby adjusting the tension of the conveyor belt to achieve belt storage and belt release.

[0061] Specifically, the first belt turning unit 110 and the second belt turning unit 120 each include a first bracket 111, two horizontal belt guide rollers 112 arranged on the first bracket, a second bracket 113, and two vertical belt guide rollers 114 arranged on the second bracket. The conveyor belt 600 completes the turning and redirection between the two horizontal belt guide rollers 112 and the two vertical belt guide rollers 114.

[0062] The redirecting unit 200 includes a third bracket 202 and a plurality of redirecting rollers 203 vertically arranged on the third bracket 202; the sliding tensioning unit 300 includes a fourth bracket 302 and a plurality of tensioning rollers 303 vertically arranged on the fourth bracket 302; the fourth bracket 302 can move relative to the third bracket 202; the conveyor belt 600 is sequentially coiled between the plurality of redirecting rollers 203 and the plurality of tensioning rollers 303.

[0063] The specific winding method of the conveyor belt varies according to the different arrangements of the redirecting rollers and the tensioning rollers. For example, when multiple redirecting rollers 203 and multiple tensioning rollers 303 are arranged on the same straight line, and the diameters of the multiple redirecting rollers 203 and the multiple tensioning rollers 303 decrease from the outside to the inside, the conveyor belt is wound in a U-shaped manner. The diameter difference between two adjacent redirecting rollers or two adjacent tensioning rollers can ensure the effective spacing between two adjacent conveyor belts. The winding method of the conveyor belt at this time is as follows: Figure 3 shown.

[0064] This embodiment also discloses another form, that is, a plurality of comb plates are provided on the third bracket 202 and the fourth bracket 302, and the cross-sections of the third bracket 202 and the fourth bracket 302 are comb-shaped and staggered; a plurality of redirecting rollers 203 and a plurality of tensioning rollers 303 are respectively arranged at the ends of the comb plates of the third bracket 202 and the fourth bracket 302, and at this time the conveyor belt is S-shaped and coiled.

[0065] In addition to the above two forms, in order to facilitate the storage and unwinding of the conveyor belt, other similar structures can be used, but they are required to be able to facilitate the storage and unwinding of the conveyor belt, as well as the winding of the vertically arranged conveyor belt.

[0066] As can be seen from the accompanying drawings, the redirecting unit 200 in the present application is provided with a fixed support 201 at the bottom, and the third bracket 202 is fixedly provided on the fixed support 201; the sliding tensioning unit 300 is provided with a sliding support 301 at the bottom, and the fourth bracket 302 is slidably provided on the sliding support 301 through a roller or a slider.

[0067] The tensioning drive unit 400 in this embodiment includes a tensioning support 401, a drum 402 and a driving part 403. A wire rope 404 is coiled on the drum 402. The movable end of the wire rope 404 is connected to the fourth bracket 302 of the sliding tensioning unit. The wire rope tightens the fourth bracket to ensure that the conveyor belt always has a certain tension to meet the normal operation of the belt conveyor. When the shield machine moves forward, the driving part 403 drives the drum 402 to retract and release.

[0068] Specifically, the driving unit 403 is a variable frequency drive motor, and is also provided with a tension sensor. The tension sensor detects the tension of the conveyor belt and controls the operation of the variable frequency drive motor.

[0069] As another new implementation, at least two groups of redirecting units 200, sliding tensioning units 300 and tensioning drive units 400 may be arranged side by side between the first belt turning unit 110 and the second belt turning unit 120. The tensioning drive units in each group operate independently and drive the sliding tensioning units to store or release the belt. That is, when a longer storage belt is needed, the storage amount can be increased by adding one or more groups of corresponding structures side by side. At this time, the width space can be more fully utilized and the length space can be reduced. At the same time, the multiple groups of settings can facilitate more precise control of the release length and maintain the stability of the tension of the conveyor belt.

[0070] When the belt conveyor unloads and enters the return section, the conveyor belt is first changed from horizontal operation to vertical operation through the belt turning unit. The vertically running conveyor belt passes through the sliding tensioning unit and the redirecting unit, and forms a ten-layer storage belt through the U-shaped winding method (there are 5 redirecting rollers and tensioning rollers in this embodiment). The conveyor belt changes from horizontal operation to vertical operation, thereby avoiding deviation caused by unbalanced force in the horizontal direction. The sliding tensioning unit is connected to the tensioning drive unit through a wire rope, and the tension of the conveyor belt is kept stable through variable frequency automatic tensioning; when the shield machine 700 excavates forward, the tension sensor detects the change in wire rope tension and automatically releases the wire rope. At this time, the sliding tensioning unit will move synchronously toward the tail direction of the machine, thereby realizing the normal operation of the continuous belt conveyor and realizing the release of the belt. After the vertically running return conveyor belt leaves the turning area of ​​the tunnel, it passes through the belt turning unit again, and the vertically running conveyor belt is changed to horizontal operation and enters the return roller. Its effect is particularly obvious in the turning area, and it has a great effect on the stability of the belt conveyor.

[0071] The present application also discloses a tunnel belt conveyor, including a belt conveyor frame 500, a main drive 501 and a belt storage bin of the above-mentioned belt-turning structure, wherein a conveyor belt matching support plate is arranged on the belt conveyor frame; the main drive is arranged at one end of the belt conveyor frame, and drives the conveyor belt to move; the belt storage bin of the above-mentioned belt-turning structure is arranged at the bottom, side or top of the belt conveyor frame. The belt conveyor frame, main drive and other structures in the above-mentioned structure can be the same as the existing structure, and the action mode can be similar; the present application realizes a new tunnel belt conveyor by changing the structure of the belt storage bin of the belt-turning structure, and its adaptability to the site space and stability during the action process are further improved, and it can meet the construction needs with higher requirements.

[0072] The preferred embodiments for implementing the present invention have been described in detail above, but it should be understood that the role of these embodiments is only to exemplify, and is not intended to limit the scope, applicability or configuration of the present invention in any way. The protection scope of the present invention is defined by the attached claims and their equivalents. A person of ordinary skill in the art can make many changes to the above embodiments under the guidance of the present invention, and these changes all fall within the protection scope of the present invention.

Claims

1. A belt storage bin with a belt-turning structure, characterized in that: include: Two oppositely arranged first belt turning units and second belt turning units, which are used to turn the conveyor belt between the first belt turning unit and the second belt turning unit to a vertical arrangement; Redirection unit; A slipping and tensioning unit, wherein the redirecting unit and the slipping and tensioning unit are arranged opposite to each other and arranged between the first belt turning unit and the second belt turning unit; as well as A tensioning driving unit, which drives the redirecting unit and the sliding tensioning unit to move relative to each other; A plurality of rollers are vertically arranged on the redirection unit and the sliding tensioning unit, and the vertically arranged conveyor belt is coiled and stored between the plurality of rollers; The first belt turning unit and the second belt turning unit both include: First bracket; two horizontal belt guide rollers disposed on the first bracket; a second bracket; and Two vertical belt guide rollers are arranged on the second bracket, and the conveyor belt completes the turning and changing direction between the two horizontal belt guide rollers and the two vertical belt guide rollers; The redirection unit comprises: A third bracket; and A plurality of redirecting rollers vertically arranged on the third bracket; The slip tensioning unit comprises: a fourth bracket, the fourth bracket being capable of sliding movement relative to the third bracket; and A plurality of tensioning rollers vertically arranged on the fourth bracket; The conveyor belt is coiled in sequence between a plurality of the redirecting rollers and a plurality of the tensioning rollers.

2. The belt storage bin with a belt-turning structure according to claim 1 is characterized in that: The multiple redirecting rollers and the multiple tensioning rollers are arranged on the same straight line, and the diameters of the multiple redirecting rollers and the multiple tensioning rollers decrease sequentially from the outside to the inside.

3. The belt-turning structure belt storage bin according to claim 1 is characterized in that: The third bracket and the fourth bracket are both provided with a plurality of comb plates, the cross sections of the third bracket and the fourth bracket are both comb-shaped and arranged alternately; the plurality of redirecting rollers and the plurality of tensioning rollers are respectively arranged at the ends of the comb plates of the third bracket and the fourth bracket.

4. The belt storage bin with a belt-turning structure according to claim 1, characterized in that: A fixed support is arranged at the bottom of the redirection unit, and the third bracket is fixedly arranged on the fixed support; a sliding support is arranged at the bottom of the sliding tensioning unit, and the fourth bracket is slidably arranged on the sliding support through a roller or a slider.

5. The belt storage bin with a belt-turning structure according to claim 1 is characterized in that: The tensioning drive unit comprises: Tension bearing; a drum on which a steel wire rope is wound, and a movable end of the steel wire rope is connected to the slip tensioning unit; and A driving unit drives the reel to be retracted and unreeled.

6. The belt storage bin with a belt-turning structure according to claim 5, characterized in that: The driving part is a variable frequency driving motor, and is also provided with a tension sensor, which detects the tension of the conveyor belt and controls the action of the variable frequency driving motor.

7. The belt-turning structure belt storage bin according to claim 1, characterized in that: At least two groups of redirection units, sliding tensioning units and tensioning drive units are arranged side by side between the first belt turning unit and the second belt turning unit. The tensioning drive units in each group act independently and drive the sliding tensioning units to store or unload the belt.

8. A tunnel belt conveyor, characterized in that: include: A belt conveyor frame, on which a conveyor belt matching support plate is arranged; A main drive, which is arranged at one end of the belt conveyor frame and drives the conveyor belt to move; and The belt storage bin with a flipping structure as described in any one of claims 1 to 7 is arranged at the bottom, side or top of the belt conveyor frame.

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