Coal adding vehicle hopper weighing system and coal adding vehicle

Abstract

The utility model relates to the technical field of coaling cars, in particular to a hopper weighing system of a coaling car and the coaling car. The hopper weighing system comprises a plurality of weighing assemblies, a hopper acts on the plurality of weighing assemblies, each weighing assembly comprises a hopper plate, a bottom plate and a spoke type weighing sensor, the hopper plate is fixed on the hopper, the bottom plate is fixed on the hopper plate, and the spoke type weighing sensor is fixed on the bottom plate. The spoke type weighing sensor is fixedly installed on the bottom plate and located below the hopper plate. The spoke type weighing sensor comprises a body and a ball body installed at the top of the body, a groove matched with the ball body is formed in the lower surface of the hopper plate, and at least part of the ball body is embedded into the groove. The problems that the column type sensor is inclined and cannot return normally and the weighing precision error is large due to the fact that the coal adding vehicle moves and shakes are solved, the weighing stability is ensured, and the coal adding quantity metering precision is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of coal charging vehicles, in particular to a coal charging vehicle hopper weighing system and a coal charging vehicle. Background Art

[0002] The weighing system of the coal loading truck hopper includes multiple column sensors, multiple injection sensors are placed on the bottom plate below the hopper, and the bottom of the coal loading truck hopper acts on multiple column sensors. The coal loading truck will shake when it is moving. When the shaking amplitude is large, the hopper and the column sensors may tilt, which may cause the force-bearing surface of a column sensor to fail to effectively contact the bottom of the hopper, resulting in weighing errors of the column sensor. Utility Model Content

[0003] (I) The problem to be solved by the utility model is that the coal charging vehicle will shake when it is moving. When the amplitude of the shaking is large, it may cause the force-bearing surface of a column sensor to be unable to effectively contact the bottom of the hopper, thereby causing the weighing of the column sensor to be wrong.

[0004] (II) Technical solution

[0005] A coal charging vehicle hopper weighing system comprises a plurality of weighing components, the hopper acts on the plurality of weighing components, the weighing components comprise a hopper plate, a bottom plate and a spoke type weighing sensor, the hopper plate is fixed on the hopper, the spoke type weighing sensor is fixedly mounted on the bottom plate and is located below the hopper plate;

[0006] The spoke type weighing sensor comprises a body and a sphere mounted on the top of the body, a groove matching the sphere is provided on the lower surface of the hopper plate, and the sphere is at least partially embedded in the groove.

[0007] According to an embodiment of the utility model, a base is provided at the bottom of the hopper plate, and the groove is formed on the lower surface of the base.

[0008] According to one embodiment of the utility model, the weighing assembly also includes an anti-tilt mechanism, which includes a pull rod, one end of which is hinged to the hopper plate and the other end of which is hinged to the bottom plate, and the pull rod is in a horizontal state.

[0009] According to one embodiment of the utility model, a vertically arranged column is provided on the top of the base plate, a vertically arranged connecting plate is provided on the bottom of the hopper plate, one end of the pull rod is hinged to the column, and the other end thereof is hinged to the connecting plate.

[0010] According to an embodiment of the utility model, the length of the pull rod is adjustable.

[0011] According to an embodiment of the present utility model, the spoke-type weighing sensor includes a fixing plate, the fixing plate is fixed to the bottom of the body, and the fixing plate and the bottom plate are fixed by bolts.

[0012] According to an embodiment of the utility model, a vertically arranged upright plate is provided on the top of the hopper plate, the upright plate is welded to the side wall of the hopper, and a reinforcing plate is welded between the upright plate and the hopper plate.

[0013] According to an embodiment of the utility model, the reinforcing plate is a right-angled trapezoidal plate, the bottom surface of the reinforcing plate is welded to the upper surface of the hopper plate, and the right-angle surface thereof is welded to the vertical plate.

[0014] According to an embodiment of the utility model, a signal line is provided on the body of the spoke-type weighing sensor.

[0015] A coal charging car comprises the above-mentioned coal charging car hopper weighing system.

[0016] Beneficial effects of the utility model:

[0017] The utility model provides a coal charging truck hopper weighing system, comprising a plurality of weighing components, the hopper acts on the plurality of weighing components, the weighing components comprising a hopper plate, a bottom plate and a spoke type weighing sensor, the hopper plate is fixed to the bottom of the hopper, the bottom plate is located below the hopper plate, and the spoke type weighing sensor is fixedly installed on the bottom plate and located below the hopper plate;

[0018] The spoke type weighing sensor comprises a body and a sphere installed on the top of the body, and a groove matched with the sphere is provided on the lower surface of the hopper plate.

[0019] Since the spoke type weighing sensor is fixed on the bottom plate, and the ball on the spoke type weighing sensor can be embedded in the groove at the bottom of the hopper plate. When the hopper is tilted, the groove at the bottom of the hopper plate cannot be completely separated from the ball, and the weight of the hopper will still act on the ball, which can ensure the accuracy of the weighing result. In addition, even if the hopper is tilted, the ball will not hinder the resetting of the hopper, and there will be no problem of the hopper being unable to reposition. The problem of the column sensor being unable to return to its original position due to the shaking of the coal-feeding vehicle and the large error in weighing accuracy is solved, which ensures the weighing stability and the accuracy of the coal-feeding metering. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a schematic diagram provided for Embodiment 1 of the present utility model.

[0022] Icons: 1. Bottom plate; 2. Hopper plate; 201. Connecting plate; 202. Base; 203. Reinforcement plate; 204. Vertical plate; 3. Spoke-type weighing sensor; 301. Signal line; 302. Sphere; 303. Fixing plate; 304. Bolt; 4. Column; 5. Pull rod; 6. Support rod one; 7. Support rod two. DETAILED DESCRIPTION

[0023] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figure 1 As shown, an embodiment of the utility model provides a coal charging truck hopper weighing system, including multiple weighing components, the hopper acts on the multiple weighing components, the weighing components include a hopper plate 2, a bottom plate 1 and a spoke type weighing sensor 3, the hopper plate 2 is fixed on the hopper, and the spoke type weighing sensor 3 is fixedly installed on the bottom plate 1 and is located below the hopper plate 2;

[0025] The spoke type weighing sensor 3 comprises a body and a sphere 302 mounted on the top of the body. The lower surface of the hopper plate 2 is provided with a groove matched with the sphere 302, and at least a part of the sphere 302 is embedded in the groove.

[0026] It should be noted that the previous coal loading truck hopper weighing system includes three column sensors, a circular groove is opened on the upper surface of the bottom plate 1, the column sensor is placed in the groove, and the three hopper plates 2 at the bottom of the coal loading truck hopper act on the three column sensors respectively. When the coal loading truck shakes while moving, when the amplitude of the shaking is large, the hopper itself will tilt in a certain direction, so that the hopper will drive a column sensor at the bottom to tilt in the same direction, and the force-bearing surfaces of the other two column sensors cannot effectively contact the bottom of the hopper. If the tilt degree of the tilted column sensor is large, it may hinder the resetting of the hopper. The weighing of the column sensor that cannot effectively contact the bottom of the hopper will be wrong, which will affect the measurement accuracy of the coal addition amount.

[0027] In the present embodiment, since the spoke type weighing sensor 3 is fixed on the bottom plate 1, and the ball 302 on the spoke type weighing sensor 3 can be embedded in the groove at the bottom of the hopper plate 2. When the hopper is tilted, the groove at the bottom of the hopper plate 2 cannot be completely separated from the ball 302, and the weight of the hopper will still act on the ball 302, which can ensure the accuracy of the weighing result. In addition, even if the hopper is tilted, the ball 302 will not hinder the resetting of the hopper, and there will be no problem of the hopper being unable to be reset. The problem of the column sensor being unable to return to its original position due to the shaking of the coal-feeding vehicle and the large error in weighing accuracy is solved, and the weighing stability is ensured, and the metering accuracy of the amount of coal added is guaranteed.

[0028] It is important to know that there are two situations in which the hopper tilts. First, when the hopper moves with the coal-feeding truck, when the coal-feeding truck shakes, the hopper will also shake and tilt. Second, when adding coal to the hopper, the coal blocks are unevenly distributed, that is, there are more coal blocks in a certain area of ​​the hopper and fewer coal blocks in other areas, which will also cause the hopper to tilt.

[0029] Preferably, in this embodiment, three weighing assemblies are provided, and the three weighing assemblies are evenly arranged around the axis of the hopper, and the bottom of the hopper acts on the three weighing assemblies. Further, three hopper plates 2 are provided, and a vertically arranged vertical plate 204 is welded on the top of each hopper plate 2, and the vertical plate 204 is welded to the side wall of the hopper.

[0030] It should be noted that three spoke-type weighing sensors 3 are also provided, and the three spoke-type weighing sensors 3 are respectively fixedly mounted on the three base plates 1, and the spoke-type weighing sensors 3 correspond to the hopper plates 2 one by one. The spoke-type weighing sensors 3 are located directly below the corresponding hopper plates 2, and the three hopper plates 2 at the bottom of the hopper act on the three spoke-type weighing sensors 3 respectively.

[0031] Optionally, considering that the entire weight of the hopper acts on the hopper plate 2, the connection strength between the hopper plate 2 and the hopper must be guaranteed, so a reinforcing plate 203 is welded between the top of the hopper plate 2 and the side of the vertical plate 204. The reinforcing plate 203 is a right-angled trapezoidal plate, the bottom surface of the reinforcing plate 203 is welded to the upper surface of the hopper plate 2, and its right-angled surface is welded to the vertical plate 204. The reinforcing plate 203 is welded between the vertical plate 204 and the hopper plate 2 to strengthen the connection stability between the vertical plate 204 and the hopper plate 2.

[0032] It should be noted that the sphere 302 on the top of the spoke type sensor is the structure of the spoke type weighing sensor 3 itself, so it will not be described in detail.

[0033] Preferably, a base 202 is provided on the hopper plate 2 , the base 202 is welded to the lower surface of the hopper plate 2 , a groove is formed on the lower surface of the base 202 , and the groove at the bottom of the base 202 fits onto the upper surface of the sphere 302 .

[0034] Preferably, the weighing assembly further includes an anti-tilt mechanism, which includes a pull rod 5, a column 4 and a connecting plate 201, and the anti-tilt mechanism corresponds one-to-one to the hopper plate 2 and the spoke-type weighing sensor 3. Specifically, the column 4 is vertically mounted on the bottom plate 1, and a vertically arranged connecting plate 201 is welded to the bottom of each hopper plate 2. One end of the pull rod 5 is hinged to the position of the hopper plate 2 near the top, and the other end is hinged to the position of the bottom plate 1 near the bottom, and the pull rod 5 is in a horizontal state.

[0035] It should be noted that the function of the anti-tilt mechanism is to limit the bucket, improve the stability of the bucket, and prevent the bucket from tilting seriously. Specifically, when the bucket has a tendency to tilt due to shaking, the pull rod 5 supports the bucket, so that the bucket cannot tilt outward, thereby ensuring the measurement accuracy of the spoke-type weighing sensor 3.

[0036] Optional, such as Figure 1 As shown, a fixing plate 303 is provided on the bottom side of the spoke type weighing sensor 3, and a hole for the bolt 304 to pass through is opened on the fixing plate 303. A plurality of bolt holes matching with the bolt 304 are opened on the top of the bottom plate 1. When installing the spoke type weighing sensor 3, it is only necessary to pass the bolt 304 through the hole on the fixing plate 303 and then tighten the bolt 304 into the bolt hole on the top of the bottom plate 1.

[0037] Optionally, the pull rod 5 is a telescopic member, which includes a rod body 1 and a rod body 2, wherein the rod body 1 is screwed to the inside of the rod body 2. The pull rod 5 can also be set to other telescopic structures, such as a telescopic rod, a hydraulic cylinder, etc. The pull rod 5 is set to be telescopic, and the length of the pull rod 5 can be extended to apply an inward thrust to the hopper, thereby ensuring the stability of the hopper and preventing it from tilting.

[0038] It should be noted that, in this embodiment, Figure 1 As shown, before installing the spoke type weighing sensor 3, it is necessary to fix the support rod 1 6 and the support rod 2 7 on the top of the base plate 1 by bolts or screws. The tops of the support rod 1 6 and the support rod 2 7 are connected to the hopper plate 2 by bolts, and the hopper is supported by the support rod 1 6 and the support rod 2 7. After installing the spoke type weighing sensor 3, the support rod 1 6 and the support rod 2 7 are removed, and the entire weight of the hopper is borne on the spoke type weighing sensor 3 of the three weighing components.

[0039] A signal line 301 is connected to the body of the spoke type weighing sensor 3, and the signal line 301 is connected to a power source, which supplies power to the spoke type weighing sensor 3. At the same time, the signal line 301 is also connected to a controller, and the signal measured by the spoke type weighing sensor 3 is transmitted to the controller for display.

[0040] The coal loading truck hopper weighing system effectively solves the problem of the column sensor tilting and unable to return to its original position due to the shaking of the coal loading truck and the large error in weighing accuracy, ensuring the weighing stability and the metering accuracy of the coal loading amount.

[0041] Embodiment 2:

[0042] The second embodiment of the present invention provides a coal charging vehicle, which comprises the coal charging vehicle hopper weighing system in the first embodiment. The coal charging vehicle comprises a hopper, and the hopper acts on the coal charging vehicle hopper weighing system.

[0043] In the description of the present invention, it should be noted that the terms "upper" and "lower" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0044] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the insides of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A coal loading vehicle hopper weighing system, characterized in that: The invention comprises a plurality of weighing components, the hopper acts on the plurality of weighing components, the weighing components comprising a hopper plate (2), a bottom plate (1) and a spoke-type weighing sensor (3), the hopper plate (2) being fixed on the hopper, the spoke-type weighing sensor (3) being fixedly mounted on the bottom plate (1) and being located below the hopper plate (2); The spoke-type weighing sensor (3) comprises a body and a sphere (302) mounted on the top of the body, the lower surface of the hopper plate (2) is provided with a groove matched with the sphere (302), and the sphere (302) is at least partially embedded in the groove.

2. A coal loading vehicle hopper weighing system according to claim 1, characterized in that: A base (202) is provided at the bottom of the hopper plate (2), and the groove is formed on the lower surface of the base (202).

3. A coal loading vehicle hopper weighing system according to claim 1, characterized in that: The weighing assembly also includes an anti-tilt mechanism, which includes a pull rod (5), one end of which is hinged to the hopper plate (2) and the other end of which is hinged to the bottom plate (1), and the pull rod (5) is in a horizontal state.

4. A coal loading vehicle hopper weighing system according to claim 3, characterized in that: A vertically arranged column (4) is provided on the top of the base plate (1), a vertically arranged connecting plate (201) is provided on the bottom of the hopper plate (2), one end of the pull rod (5) is hinged to the column (4), and the other end thereof is hinged to the connecting plate (201).

5. A coal loading vehicle hopper weighing system according to claim 4, characterized in that: The length of the pull rod (5) is adjustable.

6. A coal loading vehicle hopper weighing system according to claim 2, characterized in that: The spoke-type weighing sensor (3) comprises a fixing plate (303), wherein the fixing plate (303) is fixed to the bottom of the body, and the fixing plate (303) and the bottom plate (1) are fixed via bolts (304).

7. A coal loading vehicle hopper weighing system according to claim 1, characterized in that: A vertically arranged upright plate (204) is provided on the top of the hopper plate (2); the upright plate (204) is welded to the side wall of the hopper; and a reinforcing plate (203) is welded between the upright plate (204) and the hopper plate (2).

8. A coal loading vehicle hopper weighing system according to claim 7, characterized in that: The reinforcing plate (203) is a right-angled trapezoidal plate; the bottom surface of the reinforcing plate (203) is welded to the upper surface of the hopper plate (2), and the right-angle surface thereof is welded to the vertical plate (204).

9. A coal loading vehicle hopper weighing system according to claim 3, characterized in that: A signal line (301) is provided on the body of the spoke-type weighing sensor (3).

10. A coal-charging vehicle, characterized in that: A coal charging truck hopper weighing system comprising any one of claims 1-9.

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