Belt weigher bearing frame protection device

Abstract

The utility model discloses a belt weigher bearing frame protection device, which belongs to the technical field of belt weighers and comprises a belt conveyor. Side fences are fixedly mounted on the two sides of the belt conveyor; the belt conveyor is provided with a belt weigher weighing area below the conveying belt, two sets of material blocking baffles fixedly installed on the inner side faces of the side fences respectively are arranged over the belt weigher weighing area, and the bottoms of the material blocking baffles are just not in contact with the conveying belt. The side fences are further provided with middle material collecting frames in front of the material blocking baffles in the conveying direction of the conveying belt, and the bottoms of the middle material collecting frames are just not in contact with the conveying belt. According to the belt weigher bearing frame protection device, the material collecting groove is formed in the middle of the middle material collecting frame, the maximum width of the material collecting groove is smaller than the distance between the two sets of material blocking baffles, materials formed through the middle material collecting frame cannot make contact with the material blocking baffles when passing through a belt weigher weighing area, at the moment, the materials are not interfered by external force such as friction, and therefore the belt weigher bearing frame protection device is safe and reliable. And the measured material weight is more accurate.

Description

TECHNICAL FIELD

[0001] The utility model relates to a belt weigher technical field, specifically is a belt weigher supporting frame protection device. BACKGROUND

[0002] The belt weigher plays a key role in the conveying and metering process of coal slime and other materials. The belt weigher is a metering device that continuously weighs the material during the conveying of coal slime and other materials by the belt conveyor. It can measure the instantaneous flow and cumulative flow of the material passing through the belt conveyor without interrupting the material flow.

[0003] At present, since the coal slime is easy to fall at the gap between the two sides of the conveying belt above the supporting area of the belt weigher, the inaccuracy of the supporting will be caused if the coal slime accumulates on the supporting sensor. Therefore, the material blocking plate is installed at the gap between the two sides of the conveying belt to block the material. However, in actual application, when the coal slime passes through the supporting area of the belt weigher, the coal slime will touch the material blocking plate, which will cause the inaccuracy of the supporting under the action of friction and other external forces. SUMMARY

[0004] The technical problem to be solved by the utility model is to provide a belt weigher supporting frame protection device. The belt weigher supporting frame protection device is provided with a material collecting groove in the middle of the intermediate material collecting frame. The maximum width of the material collecting groove is less than the distance between the two groups of material blocking plates. The material shaped by the intermediate material collecting frame will not contact the material blocking plates when passing through the belt weigher weighing area. At this time, the material is not disturbed by friction and other external forces, so that the measured weight of the material is more accurate.

[0005] The technical solution of the utility model is as follows:

[0006] A belt weigher supporting frame protection device comprises a belt conveyor. Side enclosures are fixedly installed on the two sides of the belt conveyor. A belt weigher weighing area is arranged below the conveying belt of the belt conveyor. Two groups of material blocking plates are fixedly installed on the inner side surfaces of the side enclosures. The bottom of the material blocking plate is just not in contact with the conveying belt.

[0007] An intermediate material collecting frame is further installed on the side enclosure and reaches the material blocking plate before the conveying direction of the conveying belt. The bottom of the intermediate material collecting frame is just not in contact with the conveying belt.

[0008] By using the above scheme, the belt weigher supporting frame protection device is provided with a material collecting groove in the middle of the intermediate material collecting frame. The maximum width of the material collecting groove is less than the distance between the two groups of material blocking plates. The material shaped by the intermediate material collecting frame will not contact the material blocking plates when passing through the belt weigher weighing area. At this time, the material is not disturbed by friction and other external forces, so that the measured weight of the material is more accurate.

[0009] As a kind of preferred embodiment of the belt scale load-bearing frame protection device, the opening shape of the aggregate chute is upper narrow and lower wide isosceles trapezoid;The bottom width of upper narrow and lower wide isosceles trapezoid is 0.8-0.9 of the spacing between two groups of material blocking baffle;The height of upper narrow and lower wide isosceles trapezoid is 0.7-0.8 of the height of material blocking baffle.

[0010] With the above scheme, in order to ensure that the formed material has high stability on the conveying belt, the material is collected to the middle of the conveying belt by the aggregate chute with isosceles trapezoidal opening, and the formed material will not contact the material blocking baffle, and its height is lower, and its stability will be higher during conveying.

[0011] As a kind of preferred embodiment of the belt scale load-bearing frame protection device, the side of the intermediate aggregate frame is fixedly installed with a material gathering frame reaching before the intermediate aggregate frame along the conveying direction of the conveying belt, and the material gathering frame is provided with a necking opening corresponding to the aggregate chute;The edge around the necking opening is arc surface.

[0012] With the above scheme, in order to facilitate the gathering of material to the position of the aggregate chute, the material gathering frame is added, and the material will be gathered to the position of the aggregate chute when passing through the arc necking opening.

[0013] As a kind of preferred embodiment of the belt scale load-bearing frame protection device, the belt scale weighing area includes a weighing sensor and a speed sensor, and a metering roller is installed through the weighing sensor and the speed sensor, the metering roller is in frictional contact with the conveying belt and always rolls synchronously with the driving roller of the belt machine, and the display instrument electrically connected with the weighing sensor and the speed sensor is hung on the outer side of the belt machine;The weighing sensor and the speed sensor are fixedly installed in the bottom frame of the belt machine through a group of side supports.

[0014] With the above scheme, in order to realize real-time weighing of the material, when the material passes through the belt scale load-bearing area, the weighing sensor indirectly measures the weight of the material on the conveying belt by directly weighing the metering roller, and the speed sensor indirectly measures the speed of the material on the conveying belt by directly measuring the rotating speed of the metering roller, and the instantaneous flow value and the cumulative weight value are obtained by integral operation, and the values are displayed by the display instrument respectively.

[0015] After adopting the above technical scheme, the beneficial effects of the present application are:

[0016] 1、The belt scale load-bearing frame protection device is provided with an aggregate chute in the middle of the intermediate aggregate frame, the maximum width of the aggregate chute is less than the spacing between two groups of material blocking baffles, and the formed material after passing through the intermediate aggregate frame will not contact the material blocking baffle when passing through the belt scale weighing area, at this time, the material is not disturbed by external forces such as friction, so that the measured weight of the material is more accurate;

[0017] 2. In order to ensure that the formed material has high stability on the conveying belt, the material is collected to the middle of the conveying belt through the gathering chute with the opening of isosceles trapezoid, the formed material will not contact the material blocking baffle, and the height is lower, and the stability during conveying will be higher;

[0018] 3. In order to facilitate the material gathering to the position of the gathering chute, the material gathering frame is additionally arranged, and the material will be gathered to the position of the gathering chute when passing through the arc-shaped necking;

[0019] 4. In order to realize real-time weighing of the material, when the material passes through the load bearing area of the belt scale, the weighing sensor indirectly measures the weight of the material on the conveying belt through direct weighing of the measuring roller, the speed sensor indirectly measures the speed of the material on the conveying belt through direct measurement of the rotating speed of the measuring roller, the instantaneous flow value and the cumulative weight value are obtained through integral operation, and the values are displayed through the display instrument respectively. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0021] Figure 1 is a perspective view of the present application;

[0022] Figure 2 is Figure 1 a perspective view of the upper protection part;

[0023] Figure 3 is Figure 2 a perspective view of the middle material collecting frame;

[0024] Figure 4 is Figure 2 a perspective view of the material gathering frame Figure 1 ;

[0025] Figure 5 is Figure 2 a perspective view of the material gathering frame Figure 2 ;

[0026] Figure 6 is Figure 1 a perspective view of the lower belt conveyor part;

[0027] Figure 7 is a perspective view of the hidden Figure 6 conveying belt;

[0028] Figure 8The figure shows the three-dimensional structure of the material after shaping when passing through the belt scale load bearing area.

[0029] Marked in the figure: 1-belt conveyor; 2-side wall; 3-material blocking baffle; 4-intermediate material collecting frame; 5-material collecting tank; 6-material; 7-material collecting frame; 8-necking; 9-weighing sensor; 10-speed sensor; 11-metering roller; 12-display instrument; 13-side support. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0031] As shown in Figures 1 to 8 A belt scale load bearing frame protection device for conveying coal slime in a coal mine underground, comprising a belt conveyor 1; side walls 2 are fixedly installed on both sides of the belt conveyor 1 by screws; a belt scale weighing area is arranged below the conveying belt of the belt conveyor 1, and two groups of material blocking baffles 3 are arranged above the belt scale weighing area and are fixedly installed on the inner side surfaces of the side walls 2 by screws, the bottom of the material blocking baffles 3 is just not in contact with the conveying belt; an intermediate material collecting frame 4 is further fixedly installed on the side wall 2 by screws and reaches the material blocking baffles 3 before the conveying direction of the conveying belt, and the bottom of the intermediate material collecting frame 4 is just not in contact with the conveying belt. The belt scale load bearing frame protection device is provided with a material collecting tank 5 in the middle of the intermediate material collecting frame 4, the maximum width of the material collecting tank 5 is smaller than the distance between the two groups of material blocking baffles 3, and the material 6 after shaping by the intermediate material collecting frame 4 will not be in contact with the material blocking baffles 3 when passing through the belt scale weighing area, at this time the material 6 is not disturbed by external forces such as friction, so that the measured weight of the material 6 is more accurate, and the material 6 is coal slime.

[0032] As shown in Figures 2 to 3 The opening shape of the material collecting tank 5 is an isosceles trapezoid with a narrow top and a wide bottom; the bottom width of the isosceles trapezoid with a narrow top and a wide bottom is 0.8-0.9 of the distance between the two groups of material blocking baffles 3; the height of the isosceles trapezoid with a narrow top and a wide bottom is 0.7-0.8 of the height of the material blocking baffles 3. In order to ensure that the shaped material 6 has high stability on the conveying belt, the material collecting tank 5 with an isosceles trapezoidal opening is used to collect the material 6 to the middle of the conveying belt, and the shaped material 6 will not contact the material blocking baffles 3, and its height is lower, so that its stability during conveying will be higher.

[0033] As shown in Figures 4 to 5As shown, the side of the intermediate aggregate frame 4 is fixedly provided with a material gathering frame 7 before the intermediate aggregate frame 4 along the conveying direction of the conveying belt, and the intermediate material gathering frame 7 is provided with a necking 8 corresponding to the aggregate chute 5; wherein the edges around the necking 8 are arc surfaces. In order to facilitate the gathering of the material 6 at the position of the aggregate chute 5, the material gathering frame 7 is additionally provided, and the material 6 is gathered to the position of the aggregate chute 5 when passing through the arc necking 8.

[0034] As shown in the drawings, Figures 6 to 7 As shown, the belt scale weighing area includes a weighing sensor 9 and a speed sensor 10, and a metering roller 11 is installed through the weighing sensor 9 and the speed sensor 10, the metering roller 11 is in frictional contact with the conveying belt and always rolls synchronously with the driving roller of the belt conveyor 1, and a display instrument 12 electrically connected with the weighing sensor 9 and the speed sensor 10 is hung on the outer side of the belt conveyor 1; the two sides of the weighing sensor 9 and the speed sensor 10 are fixedly installed in the bottom frame of the belt conveyor 1 through a group of side supports 13. In order to realize real-time weighing of the material 6, when the material 6 passes through the belt scale bearing area, the weighing sensor 9 indirectly measures the weight of the material 6 on the conveying belt by directly weighing the metering roller 11, and the speed sensor 10 indirectly measures the speed of the material 6 on the conveying belt by directly measuring the rotating speed of the metering roller 11, and the instantaneous flow value and the cumulative weight value are obtained by integral operation, and the numerical values are displayed through the display instrument 12.

[0035] The working principle of the utility model:

[0036] In application, the coal slime is loaded on the conveying belt of the belt conveyor 1, and the coal slime is used as raw material for later coal production.

[0037] The belt scale bearing frame protection device is provided with an aggregate chute 5 in the middle of the intermediate aggregate frame 4, and the opening shape of the aggregate chute 5 is an isosceles trapezoid with a narrow upper part and a wide lower part, and the maximum width of the aggregate chute 5 is smaller than the distance between the two groups of material blocking plates 3, so that the coal slime shaped by the intermediate aggregate frame 4 will not contact the material blocking plates 3 when passing through the belt scale weighing area, and at this time, the coal slime is not disturbed by external forces such as friction, so that the measured weight of the coal slime is more accurate; the shaped coal slime will not contact the material blocking plates 3, and the height is low, so that the stability during conveying is higher.

[0038] The coal slime can be weighed in real time during conveying, and when the coal slime passes through the belt scale bearing area, the weighing sensor 9 indirectly measures the weight of the coal slime on the conveying belt by directly weighing the metering roller 11, and the speed sensor 10 indirectly measures the speed of the coal slime on the conveying belt by directly measuring the rotating speed of the metering roller 11, and the instantaneous flow value and the cumulative weight value are obtained by integral operation, and the numerical values are displayed through the display instrument 12.

[0039] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A belt scale support frame protection device, comprising a belt conveyor (1); side walls (2) are fixedly installed on both sides of the belt conveyor (1); a belt scale weighing area is arranged below the conveying belt of the belt conveyor (1), and two groups of material blocking plates (3) are arranged above the belt scale weighing area and are fixedly installed on the inner side surfaces of the side walls (2), respectively; the bottom of the material blocking plate (3) is just not in contact with the conveying belt; characterized in that An intermediate material collecting frame (4) is further installed on the side wall (2) and reaches the material blocking plate (3) before the conveying direction of the conveying belt, and the bottom of the intermediate material collecting frame (4) is just not in contact with the conveying belt; A material collecting groove (5) is arranged in the middle of the intermediate material collecting frame (4), the maximum width of the material collecting groove (5) is less than the distance between the two groups of material blocking plates (3), and the material (6) shaped by the intermediate material collecting frame (4) will not be in contact with the material blocking plate (3) when passing through the belt scale weighing area.

2. The belt scale load beam guard of claim 1, wherein: The opening shape of the material collecting groove (5) is an isosceles trapezoid with a narrow top and a wide bottom.

3. The belt scale load beam guard of claim 2, wherein: The bottom width of the isosceles trapezoid with a narrow top and a wide bottom is 0.8-0.9 of the distance between the two groups of material blocking plates (3).

4. The belt scale load beam guard of claim 3, wherein: The height of the isosceles trapezoid with a narrow top and a wide bottom is 0.7-0.8 of the height of the material blocking plate (3).

5. The belt scale load beam guard of claim 4, wherein: A material gathering frame (7) is fixedly installed on the side surface of the intermediate material collecting frame (4) and reaches the intermediate material collecting frame (4) before the conveying direction of the conveying belt, and a necking (8) corresponding to the material collecting groove (5) is arranged in the middle of the material gathering frame (7).

6. The belt scale load beam guard of claim 5, wherein: The edges around the necking (8) are arc surfaces.

7. The belt scale load beam guard of any of claims 1-6, wherein: The belt scale weighing area comprises a weighing sensor (9) and a speed sensor (10), a metering roller (11) is installed through the weighing sensor (9) and the speed sensor (10), the metering roller (11) is in frictional contact with the conveying belt and always rolls synchronously with the driving roller of the belt conveyor (1), and a display instrument (12) electrically connected with the weighing sensor (9) and the speed sensor (10) is hung on the outer side surface of the belt conveyor (1).

8. The belt scale load beam guard of claim 7, wherein: The weighing sensor (9) and the speed sensor (10) are fixedly installed in the bottom frame of the belt conveyor (1) through a group of side supports (13) on both sides.

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