Machine head chute of belt conveyor with brake disc and permanent magnet roller

Abstract

The utility model belongs to the technical field of machine head chutes, and particularly relates to a machine head chute of a belt conveyor with a brake disc and a permanent magnet roller, which comprises a transition box body and a chute body, and the transition box body comprises a first side plate, a second side plate and a rear plate, the first side plate and the second side plate are each provided with an arc groove corresponding to the permanent magnet roller in shape, the second side plate is located at the left side end of the permanent magnet roller, and a gap is reserved between the first side plate and the right side end of the permanent magnet roller so that a brake head installed on the left side of the permanent magnet roller can be conveniently abdicated. A transition plate is fixedly connected to the front portion of the first side plate, and a material arranging plate is fixedly connected to the front side of the transition plate. The utility model solves the problem of the structural design of the permanent magnet roller machine head chute with the brake disc of the mining belt conveyor, reasonably separates the disc brake disc and the brake head from the chute body, prevents coal dust from accumulating in the gap between the brake head and the brake disc, and ensures the braking effect.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of machine head chute, specifically relates to a kind of machine head chute of belt conveyor with brake disc permanent-magnetic drum. BACKGROUND

[0002] At present, the large-scale mechanized fully-mechanized mining process is used in mine, the production scale of mine is generally larger, and the belt conveyor, as the main throat transport equipment of mine, plays an important role in daily production process. However, the coal dust is large at the transfer point and the coal receiving point of the belt conveyor due to the existence of certain drop, and the chute is needed to completely connect between the unloading point of the previous belt conveyor and the material receiving point of the next belt conveyor. Generally, the chute is of closed structure, which can ensure the smooth transfer of materials and reduce the coal dust generated by coal falling.

[0003] However, the machine head chute in the design manual of TD75 type and DT II type is only applicable to the driving form of "three-phase asynchronous motor + coupling + reducer + coupling + transmission drum", and if the driving belt has a brake, whether it is a low-speed shaft brake or a high-speed shaft brake, the installation can be completed through the coupling with brake disc between the motor and the reducer or between the reducer and the transmission drum. The chute in the above design manual only needs to cover the rest of the places after the transmission drum is hidden from the main shaft, and the structure is simple.

[0004] In recent years, great progress has been made in "permanent magnet" technology in China. The permanent-magnetic drum directly connects the load, without the need for a reducer and a mechanical soft start device, simplifying the transmission structure. The permanent-magnetic drum rotor uses N38UH neodymium-iron-boron permanent magnet, with no rotor excitation loss and copper loss, and the rated efficiency is higher than that of a three-phase asynchronous motor. The permanent-magnetic drum can maintain high operating efficiency under light load and heavy load, while the three-phase asynchronous motor has the phenomenon of "big horse pulling small cart", resulting in operating efficiency much lower than rated efficiency. The permanent-magnetic drum system has an efficiency improvement of about 15% compared to "three-phase asynchronous motor + reducer + mechanical soft start device". The permanent-magnetic drum also has the characteristics of energy saving, maintenance free, high mechanical efficiency and low failure rate. Many modern mines gradually prefer the permanent-magnetic drum in the selection of belt conveyor driving form, which has a significant effect on energy saving and cost reduction.

[0005] The belt conveyor with large inclination conditions such as upward operation and downward operation is often equipped with a disc brake and a backstop. Due to the special structure of the permanent-magnetic drum, with the stator not rotating and the outer rotor rotating, a separate disc brake cannot be installed on the permanent-magnetic drum shaft, so the permanent-magnetic drum with brake disc is derived to adapt to the belt conveyor with upward operation and downward operation. However, the structure of the permanent-magnetic drum with brake disc is completely different from that of the traditional motor + reducer + disc brake, and the structure is more complex and compact, which leads to the fact that the machine head chute in the design manual of TD75 type and DT II type cannot be used. The utility model discloses a kind of head chute of belt conveyor with brake disc permanent magnet roller.

[0006] The utility model provides a kind of head chute of belt conveyor with brake disc permanent magnet roller to the above problems.

[0007] To achieve the above object, the utility model adopts the following technical scheme:

[0008] A kind of head chute of belt conveyor with brake disc permanent magnet roller, including transition box and chute body, the transition box is fixedly arranged above the chute body, the transition box includes No. 1 side plate, No. 2 side plate and back plate, No. 2 side plate and No. 1 side plate are respectively fixedly connected on the left and right sides of the upper end of chute body, the back plate is fixedly connected on the rear side of the upper end of chute body, No. 1 side plate and No. 2 side plate are fixedly connected with back plate, the circular arc groove corresponding with the shape of permanent magnet roller is formed on No. 1 side plate and No. 2 side plate, No. 2 side plate is located at the left end of permanent magnet roller, and gap is left between No. 1 side plate and the right end of permanent magnet roller, to facilitate the installation of brake head in the left side of permanent magnet roller, transition plate is fixedly connected on the front of No. 1 side plate, and whole material plate is fixedly connected on the front side of the transition plate, and the front end of whole material plate is flush with the front end of No. 2 side plate, and top plate is fixedly connected on the upper end of the whole material plate, transition plate, No. 1 side plate, No. 2 side plate and back plate.

[0009] Further, dust curtain is fixedly arranged on the front end of the top plate, and the width of the dust curtain is same with the interval of whole material plate and No. 2 side plate.

[0010] Further, access door is arranged on No. 1 side plate, No. 2 side plate and back plate, to facilitate artificial daily observation of material falling and material level.

[0011] Further, high-pressure spray dust-settling device is installed on the top plate, and the high-pressure spray dust-settling device is electrically connected with controller.

[0012] Further, incoming material detection sensor is arranged on the top plate, and the incoming material detection sensor is electrically connected with controller.

[0013] Compared with prior art, the utility model has the following advantages:

[0014] The permanent magnetic roller of the belt conveyor with a brake disc is equivalent to adding a disc brake on the basis of the driving roller, and is a one-piece structure combining the driving roller and the brake, and the structure and size thereof are completely different from those of the ordinary driving roller, so that many factors need to be considered when designing the head chute, such as that the head chute cannot affect the normal material passing, cannot affect the normal work of the brake, the material on the belt surface cannot leak, the brake needs frequent daily maintenance, and the structure is more complex than the chute in the current design manual. The utility model first breaks through the design structure of the chute in the current design manual of the belt conveyor, fills the design blank of the head chute of the permanent magnetic roller of the mine belt conveyor with a brake disc, provides a new design idea, and the utility model has been verified in practical application, and has good effect, and has important guiding significance for the design field.

[0015] The utility model guarantees that the coal dust overflow is maximizedly reduced under the condition that the mine belt conveyor is normally unloaded, the explosion danger of the coal dust is reduced, the quality of the working environment of personnel is improved, and the implementation of the occupational health technical measures is facilitated.

[0016] The utility model solves the structure design problem of the head chute of the permanent magnetic roller of the mine belt conveyor with a brake disc, the positions of the two side plates of the conventional head chute are relatively wide, and the two side plates are symmetrically arranged relative to the center line of the permanent magnetic roller and are used for guiding the material to the next link, the utility model adopts the structure design of the local narrowing of the side baffle, can leave corresponding space for the brake disc of the disc brake and the brake head of the permanent magnetic roller under the premise of guaranteeing the same material guiding and sealing effect, the structure is more compact, the accumulation of the coal dust in the gap between the brake head and the brake disc is avoided, and the braking effect is guaranteed, the disc brake exposed to the outside is favorable for the daily maintenance of workers and the maintenance of the hydraulic oil pipe and the periodical measurement of the gap between the brake disc and the brake head, the gap between the brake disc and the brake head needs to be guaranteed to be <=1.5mm, the daily maintenance is frequent, and the brake head is exposed in the scheme of the utility model, so that the maintenance work is facilitated.

[0017] The utility model discloses a dust falling device for belt conveyor, it includes the high pressure spray device, the controller and the material detection sensor, the material detection sensor is arranged on the belt conveyor, and the high pressure spray device is arranged on the belt conveyor, and the controller is connected with the material detection sensor and the high pressure spray device, the utility model discloses the material detection sensor detects whether there is material on the belt conveyor, and then the controller automatically controls the high pressure spray dust falling device to work, and it is favorable for the accumulation of fine dust and ultra-fine dust, so that they are more easily adsorbed and captured, and the dust falling rate is about 80%.

[0018] The utility model discloses a dust falling device for belt conveyor, it includes the high pressure spray device, the controller and the material detection sensor, the material detection sensor is arranged on the belt conveyor, and the high pressure spray device is arranged on the belt conveyor, and the controller is connected with the material detection sensor and the high pressure spray device, the utility model discloses the material detection sensor detects whether there is material on the belt conveyor, and then the controller automatically controls the high pressure spray dust falling device to work, and it is favorable for the accumulation of fine dust and ultra-fine dust, so that they are more easily adsorbed and captured, and the dust falling rate is about 80%.

[0019] The utility model discloses improve the occupational health environment of mine basic level staff to a certain extent, because the collection effect of coal dust is good, reduces the danger source on the source, under the dual action mechanism of reutilization individual protection, it is more favorable to the physical and mental health of mine staff, also bring certain invisible economic benefits to the cost reduction and benefit increase of mine. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 It is the front view of the utility model;

[0021] Fig. 2 It is the rear view of the utility model;

[0022] Fig. 3 It is the plan view of the transition box body and chute body installation of the utility model;

[0023] Fig. 4 It is the structure schematic diagram of dustproof curtain of the utility model;

[0024] In the drawing, chute body 1, one side plate 2, two side plate 3, rear plate 4, circular recess 5, transition plate 6, whole material plate 7, top plate 8, dustproof curtain 9, access door 10, high pressure spray dust falling device 11, incoming material detection sensor 12, permanent magnet roller 13, brake brake head 14, conveying belt 15. DETAILED DESCRIPTION

[0025] In order to further illustrate the technical scheme of the utility model, the utility model is further illustrated by the following examples.

[0026] As Figs. 1 to 4As shown, a kind of head chute of belt conveyor with brake disc permanent magnet roller, including transition box and chute body 1, the transition box is fixedly arranged above the chute body 1, the transition box includes No. side plate 2, No. side plate 3 and rear plate 4, No. side plate 3 and No. side plate 2 are respectively fixedly connected on the left and right sides of the upper end of chute body 1, the rear plate 4 is fixedly connected on the rear side of the upper end of chute body 1, No. side plate 2 and No. side plate 3 are all fixedly connected with rear plate 4, access door 10 is provided on No. side plate 2, No. side plate 3 and rear plate 4, to facilitate artificial routine observation of material and material level, the circular arc groove 5 corresponding with the shape of permanent magnet roller 13 is formed on No. side plate 2 and No. side plate 3, No. side plate 3 is located at the left end of permanent magnet roller 13, and No. side plate 2 and the right end of permanent magnet roller 13 leave a gap, to facilitate the installation of brake head 14 on the left side of permanent magnet roller 13, transition plate 6 is fixedly connected to the front of No. side plate 2, and whole material plate 7 is fixedly connected to the front side of transition plate 6, the front end of whole material plate 7 is flush with the front end of No. side plate 3, top plate 8 is fixedly connected to the upper end of whole material plate 7, transition plate 6, No. side plate 2, No. side plate 3 and rear plate 4, dust curtain 9 is fixedly arranged on the front end of top plate 8, the width of dust curtain 9 is same with the interval between whole material plate 7 and No. side plate 3, high-pressure spray dust-settling device 11 is installed on top plate 8, and the high-pressure spray dust-settling device 11 is electrically connected with controller, incoming material detection sensor 12 is also arranged on top plate 8, and the incoming material detection sensor 12 is electrically connected with controller.

[0027] The incoming material detection sensor 12 is a photoelectric sensor.

[0028] The main features and advantages of the present application are shown and described above, and it is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application.

[0029] In addition, it should be understood that, although the present application is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. A head chute for a belt drag pulley belt conveyor with a brake disc, characterized in that: The utility model relates to a transition box and chute body (1), the transition box fixedly arranged in the upper of chute body (1), the transition box includes side plate (2), side plate (3) and rear plate (4), side plate (3) and side plate (2) are fixedly connected respectively on the left and right sides of the upper end of chute body (1), rear plate (4) is fixedly connected on the rear side of the upper end of chute body (1), side plate (2) and side plate (3) are fixedly connected with rear plate (4), the circular arc groove (5) corresponding with the shape of permanent magnet roller (13) is set up on side plate (2) and side plate (3), side plate (3) is located in the left end of permanent magnet roller (13), and the gap is left between side plate (2) and the right end of permanent magnet roller (13) to facilitate the accommodation of brake head (14) installed in the left of permanent magnet roller (13), transition plate (6) is fixedly connected in the front of side plate (2), and whole material plate (7) is fixedly connected in the front side of transition plate (6), the front end of whole material plate (7) is flush with the front end of side plate (3), and the top plate (8) is fixedly connected in the upper end of whole material plate (7), transition plate (6), side plate (2), side plate (3) and rear plate (4).

2. A head chute for a belt and disc permanent magnet drum belt conveyor according to claim 1, characterized in that: Dustproof curtain (9) is fixedly arranged in the front end of top plate (8), and the width of dustproof curtain (9) is same with the interval of whole material plate (7) and side plate (3).

3. A head pulley for a belt conveyor having a magnetic drum and a brake disc, according to claim 1, characterized in that: Access door (10) is arranged on side plate (2), side plate (3) and rear plate (4) to facilitate artificial daily observation of material falling and material level.

4. A head pulley for a belt conveyor having a magnetic drum and a brake disc, according to claim 1, characterized in that: High-pressure spray dust-settling device (11) is installed on top plate (8), and high-pressure spray dust-settling device (11) is electrically connected with controller.

5. A head pulley for a belt conveyor having a magnetic drum and a brake disc, according to claim 4, characterized in that: Incoming material detection sensor (12) is further arranged on top plate (8), and incoming material detection sensor (12) is electrically connected with controller.

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