Table-board-free waste steel electronic scale

Abstract

The utility model discloses a table-board-free steel scrap electronic scale, and aims to provide a table-board-free steel scrap electronic scale in the prior art. The technical problem is solved through the following technical scheme: the weighing device comprises a weighing assembly which comprises a weighing top plate and a load-bearing sensor arranged below the weighing top plate; the guide block assembly comprises a plurality of special guide blocks arranged on the periphery of the weighing top plate, and each special guide block is provided with an inclined guide surface and a binding surface; the bottom of the steel scrap trough is provided with a guide supporting block, the guide supporting block acts on the weighing top plate, and the attaching face is attached to the outer side wall of the guide supporting block. According to the utility model, the special guide block is specially designed according to the guide support block at the bottom during the weighing of the scrap steel trough, and when the scrap steel trough is lowered by a travelling crane, the binding surface is attached to the side wall of the weighing guide block, so that scrap steel can be effectively prevented from falling into the weighing assembly, and the weighing precision of the scrap steel can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of scrap steel weighing, and more specifically, it relates to a non-table scrap steel electronic scale. Background Art

[0002] In the modern steel industry, a certain amount of scrap steel is added in the steelmaking process without exception. Using scrap steel as raw material and directly putting it into the steelmaking furnace for smelting can save a lot of natural resources and energy while improving the environment and reducing air pollution emissions by eliminating the mining, ore dressing, coking, and ironmaking processes.

[0003] Generally, the scrap steel weighing measures the weight of the scrap steel including the scrap steel trough, that is, the scrap steel trough is weighed together. When weighing the scrap steel scale in the prior art, due to the different sizes of the scrap steel, the scrap steel may fall into the scrap steel scale during the weighing process, causing the scrap steel scale to be blocked, thereby affecting the weighing accuracy and thus affecting the weighing of the scrap steel.

[0004] For example, the Chinese patent publication number CN203758600U, the publication date August 6, 2014, the name of the patent is a buffer scale for weighing scrap steel, and the application discloses a buffer scale for weighing scrap steel. During weighing, the scrap steel is easy to fall into the lower end of the sensor assembly on the lower scale, making the scrap steel scale prone to blockage, thereby affecting the weighing accuracy. Utility Model Content

[0005] The utility model overcomes the problem in the prior art that scrap steel scales are prone to falling into scrap steel during weighing, causing the scrap steel scales to be blocked, thereby affecting the weighing accuracy, and provides a tableless scrap steel electronic scale that can effectively prevent scrap steel from falling into the scrap steel electronic scale, thereby ensuring the scrap steel weighing accuracy.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions: a non-table scrap steel electronic scale, comprising:

[0007] A weighing assembly, comprising a weighing top plate and a load-bearing sensor arranged below the weighing top plate;

[0008] The guide block assembly includes a plurality of special guide blocks arranged on the periphery of the weighing top plate, and the special guide blocks are provided with an inclined guide surface and a fitting surface;

[0009] The scrap steel trough has a guide support block at the bottom thereof, the guide support block acts on the weighing top plate, and the fitting surface fits on the outer side wall of the guide support block.

[0010] In the utility model, the special guide block is specially designed according to the guide support block at the bottom of the scrap steel trough when weighing. When the scrap steel trough is lowered by the crane, it slides downward along the inclined guide surface so that the guide support block can be loaded onto the weighing top plate, thereby accurately and quickly guiding and limiting the scrap steel trough to be placed in the weighing position. In addition, the fitting surface will fit with the side wall of the weighing guide block, thereby effectively preventing the scrap steel from falling into the weighing assembly, thereby ensuring the accuracy of the scrap steel weighing.

[0011] Preferably, the mounting grooves of several dedicated guide blocks cooperate to form a mounting cavity, and the weighing assembly is arranged in the mounting cavity.

[0012] When the scrap steel trough is lowered by the crane, it slides downward along the inclined guide surface so that the guide support block can be loaded onto the weighing top plate, thereby accurately and quickly guiding and limiting the scrap steel trough to be placed in the weighing position.

[0013] Preferably, the guide block assembly includes four special guide blocks, and the special guide blocks include a guide base plate and an inclined guide block arranged at the bottom; the inclined guide surface and the fitting surface are arranged on the inclined guide block.

[0014] By sliding downward along the inclined guide surface, the guide support block can be loaded onto the weighing top plate, thereby accurately and quickly guiding and limiting the scrap steel trough to be placed in the weighing position.

[0015] Preferably, the weighing assembly further comprises a weighing base plate, a weighing sensor mounted on the weighing base plate, a weighing pressure head is arranged on the top of the weighing sensor, and a weighing top plate is arranged on the weighing pressure head.

[0016] The weighing pressure head, the weighing sensor, the weighing bottom plate and the weighing top plate cooperate to form a weighing assembly.

[0017] Preferably, the weighing pressure head is spherical, and an arc surface cooperating with the weighing pressure head is provided below the weighing top plate.

[0018] The spherical contact structure is formed by the cooperation between the weighing head and the arc surface. This design allows the weighing top plate and the weighing head to always maintain a point contact state. During the weighing process, the weighing top plate is subjected to the pressure applied by the scrap steel trough, and the weighing sensor is always subjected to vertical force.

[0019] Preferably, a limiting groove is provided on the outer side wall of the weighing pressure head, and a limiting baffle is provided on the bottom of the weighing top plate, and the limiting baffle is located in the limiting groove.

[0020] Through the restraining effect of the limit baffle, the weighing pressure head will not slide off the top plate when there is no pressure on it.

[0021] Preferably, a buffer pad is provided at the bottom of the weighing base plate.

[0022] In the process of loading the scrap steel trough into the scrap steel scale, it is inevitable to generate large vertical and lateral impact forces. In order to ensure that the scrap steel electronic scale has sufficient impact resistance to meet the accuracy requirements of the production line and extend the service life of the weighing module, the non-table scrap steel electronic scale adopts a structure in which a buffer pad is set to effectively buffer and reduce vibration.

[0023] Preferably, a mounting boss is provided on the top of the weighing sensor, and a mounting groove matching with the mounting boss is provided on the bottom of the load-bearing pressure head.

[0024] The bolt passes through the weighing head and the mounting convex head at the bottom for connection. Through the cooperation of the mounting convex head and the mounting groove, the bolt passes through the weighing head and the mounting convex head for fixed connection, so that the center of the weighing head is used to keep vertical with the weighing sensor. This improves the stability of the weighing module, so that when the weighing sensor is subjected to force, the weighing head can act on the middle position of the weighing sensor, thereby improving the measurement accuracy.

[0025] Compared with the prior art, the utility model has the following beneficial effects: in the utility model, the special guide block is specially designed according to the guide support block at the bottom of the scrap steel trough when weighing. When the scrap steel trough is lowered by the crane, it slides downward along the inclined guide surface, so that the guide support block can be loaded onto the weighing top plate, thereby accurately and quickly guiding and limiting the scrap steel trough to be placed in the weighing position. In addition, the fitting surface will fit with the side wall of the weighing guide block, thereby effectively preventing the scrap steel from falling into the weighing assembly, thereby ensuring the accuracy of the scrap steel weighing.

[0026] Therefore, in this embodiment, a total of four weighing modules consisting of weighing components and guide block components are provided, so that they can be matched with the four guide support blocks of the scrap steel trough. The scale table is eliminated, which greatly reduces the inaccurate weighing caused by the scale table being stuck, improves the accuracy and stability of the scrap steel scale, and greatly reduces the production and manufacturing costs. At the same time, the structure is simple, the subsequent maintenance cost is reduced, and the service life is increased. In addition, the volume is greatly reduced, and the transportation cost will be greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a front view of the scrap steel trough of the utility model;

[0028] Figure 2 It is a side view of the scrap steel trough of the utility model;

[0029] Figure 3 This is a front view of the scrap steel trough and the guide block assembly of the utility model when they are matched;

[0030] Figure 4 It is a side view of the scrap steel trough and the guide block assembly of the utility model when they are matched;

[0031] Figure 5 It is a half-section diagram of the guide block assembly and the weighing assembly of the utility model;

[0032] Figure 6 It is a half-section view of the guide block assembly and the weighing assembly of the utility model from another perspective;

[0033] Figure 7 It is a half-section diagram of the weighing assembly of the utility model;

[0034] In the figure: 1, scrap steel trough, 11, trough cavity, 12, guide support block;

[0035] 2. weighing assembly, 21. weighing bottom plate, 22. weighing sensor, 221. mounting convex head, 23. weighing pressure head, 231. limiting groove, 232. mounting groove, 24. weighing top plate, 241. arc surface, 25. limiting baffle;

[0036] 3. Special guide block, 31. Guide base plate, 32. Inclined guide block, 33. Inclined guide surface, 34. Fitting surface, 35. Installation cavity;

[0037] 4. Cushion. DETAILED DESCRIPTION

[0038] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0039] Example 1: Reference Figures 1 to 7 The present invention discloses a non-table scrap steel electronic scale, comprising a weighing component 2, a guide block component and a scrap steel trough 1.

[0040] The scrap steel trough 1 comprises a trough cavity 11 for containing scrap steel and a guide support block 12 arranged at the bottom of the trough cavity 11. In this embodiment, four guide support blocks 12 are arranged, and the four guide support blocks 12 are respectively arranged at the four corners of the bottom end of the trough cavity 11. The guide support blocks 12 in this embodiment are in the shape of a rectangular parallelepiped.

[0041] The weighing assembly 2 mainly includes a weighing top plate 24, a weighing sensor 22 arranged below the weighing top plate 24, a weighing bottom plate 21 and a weighing pressure head 23. The weighing bottom plate 21 is arranged at the bottom, and a weighing sensor 22 is fixedly installed on the weighing bottom plate 21 by bolts. In this embodiment, the weighing sensor 22 adopts a 17-type bridge sensor, which has excellent impact resistance, a solid structure, strong lateral impact resistance, and stable and reliable performance. The weighing sensor 22 is fixedly installed on the weighing bottom plate 21 by bolts, which further enhances the overall stability of the weighing module and ensures the accuracy and reliability of the measurement.

[0042] The weighing head 23 is arranged above the weighing sensor 22. In order to improve the weighing accuracy, a mounting boss 221 is fixedly arranged at the middle position of the top of the weighing sensor 22, and a mounting groove 232 matching with the mounting boss 221 is arranged at the bottom of the weighing head 23. The bolt passes through the weighing head 23 and is connected with the mounting boss 221 at the bottom. Through the matching of the mounting boss 221 and the mounting groove 232, the bolt passes through the weighing head 23 and is fixedly connected with the mounting boss 221, so that the center of the weighing head 23 is used to keep vertical with the weighing sensor 22. This improves the stability of the weighing module, so that when the weighing sensor 22 is subjected to force, the weighing head 23 can act on the middle position of the weighing sensor 22, thereby improving the measurement accuracy.

[0043] The weighing top plate 24 is arranged above the weighing head 23. In order to further improve the accuracy of weighing and make the force received by the weighing sensor 22 always in the center position, the weighing head 23 is spherical, and a circular arc surface 241 cooperating with the weighing head 23 is arranged below the weighing top plate 24. A spherical contact structure is formed by the cooperation between the weighing head 23 and the circular arc surface 241. This design enables the weighing top plate 24 to always maintain a point contact state with the weighing head 23. During the weighing process, the weighing top plate 24 is subjected to the pressure applied by the scrap steel trough 1, and the weighing sensor 22 is always subjected to vertical force.

[0044] In the above structure, in the unloaded state, the weighing top plate 24 will tilt due to its own gravity and spherical effect. Therefore, a limit baffle 25 is provided. A limit groove 231 is provided on the outer wall of the weighing pressure head 23. The limit groove 231 in this embodiment is an annular groove provided in the circumferential direction of the weighing pressure head 23. The limit baffle 25 is provided at the bottom of the weighing top plate 24, and the limit baffle 25 is fixed to the bottom of the weighing top plate 24 by bolts, and the limit baffle 25 is located in the limit groove 231. Through the restricting effect of the limit baffle 25, the weighing pressure head 23 will not slide off the top plate when there is no pressure on it.

[0045] The guide block assembly includes a plurality of special guide blocks 3 arranged on the periphery of the weighing top plate 24. The number of special guide blocks 3 is related to the shape of the guide support block 12. The guide support block 12 in this embodiment is in the shape of a rectangular parallelepiped and is provided with four outer side walls. Therefore, four special guide blocks 3 are provided in this embodiment. The four special guide blocks 3 are respectively matched with the side walls of a guide support block 12. In addition, the four guide support blocks 12 are arranged around the weighing top plate 24. The special guide block 3 is provided with an inclined guide surface 33 and a fitting surface 34; the guide support block 12 acts on the weighing top plate 24, and the fitting surface 34 fits on the outer side wall of the guide support block 12.

[0046] Four special guide blocks 3 cooperate to form an installation cavity 35, and the weighing assembly 2 is arranged in the installation cavity. Specifically, the special guide block 3 includes a guide base plate 31 and an inclined guide block 32 arranged at the bottom, and the guide base plate 31 and the inclined guide block 32 are integrally formed; the inclined guide surface 33 and the fitting surface 34 are arranged on the inclined guide block 32. The guide base plates 31 of the four special guide blocks 3 are connected by welding, so that the installation grooves cooperate to form an installation cavity, and the top of the installation cavity is an opening. The weighing base plate 21 is fixedly installed at the bottom of the installation cavity by bolts, and the bottom surface size of the installation cavity is adapted to the weighing base plate 21. The weighing top plate 24 is arranged at the opening of the installation cavity.

[0047] The special guide block 3 is specially designed according to the guide support block 12 at the bottom of the scrap steel trough 1 when weighing. When the scrap steel trough 1 is lowered by the crane, it slides downward along the inclined guide surface 33, so that the guide support block 12 can be loaded onto the weighing top plate 24, thereby accurately and quickly guiding and limiting the scrap steel trough 1 to be placed in the weighing position. In addition, the fitting surface 34 will fit with the side wall of the weighing guide block, thereby effectively preventing the scrap steel from falling into the weighing assembly 2, thereby ensuring the accuracy of the scrap steel weighing.

[0048] Therefore, in this embodiment, a total of four groups of weighing modules consisting of weighing components 2 and guide block components are provided, so that they can be matched with the four guide support blocks 12 of the scrap steel trough 1. The scale table is eliminated, which greatly reduces the inaccurate weighing caused by the scale table being stuck, improves the accuracy and stability of the scrap steel scale, and greatly reduces the production and manufacturing costs. At the same time, the structure is simple, the subsequent maintenance cost is reduced, and the service life is increased. In addition, the volume is greatly reduced, and the transportation cost will be greatly reduced.

[0049] Example 2: Reference Figures 1 to 7 The present invention discloses a non-table scrap steel electronic scale, comprising a weighing component 2, a guide block component and a scrap steel trough 1.

[0050] The scrap steel trough 1 comprises a trough cavity 11 for containing scrap steel and a guide support block 12 arranged at the bottom of the trough cavity 11. In this embodiment, four guide support blocks 12 are arranged, and the four guide support blocks 12 are respectively arranged at the four corners of the bottom end of the trough cavity 11. The guide support blocks 12 in this embodiment are in the shape of a rectangular parallelepiped.

[0051] The weighing assembly 2 mainly includes a weighing top plate 24, a weighing sensor 22 arranged below the weighing top plate 24, a weighing bottom plate 21 and a weighing pressure head 23. The weighing bottom plate 21 is arranged at the bottom, and a weighing sensor 22 is fixedly installed on the weighing bottom plate 21 by bolts. In this embodiment, the weighing sensor 22 adopts a 17-type bridge sensor, which has excellent impact resistance, a solid structure, strong lateral impact resistance, and stable and reliable performance. The weighing sensor 22 is fixedly installed on the weighing bottom plate 21 by bolts, which further enhances the overall stability of the weighing module and ensures the accuracy and reliability of the measurement.

[0052] The weighing head 23 is arranged above the weighing sensor 22. In order to improve the weighing accuracy, a mounting boss 221 is fixedly arranged at the middle position of the top of the weighing sensor 22, and a mounting groove 232 matching with the mounting boss 221 is arranged at the bottom of the weighing head 23. The bolt passes through the weighing head 23 and is connected with the mounting boss 221 at the bottom. Through the matching of the mounting boss 221 and the mounting groove 232, the bolt passes through the weighing head 23 and is fixedly connected with the mounting boss 221, so that the center of the weighing head 23 is used to keep vertical with the weighing sensor 22. This improves the stability of the weighing module, so that when the weighing sensor 22 is subjected to force, the weighing head 23 can act on the middle position of the weighing sensor 22, thereby improving the measurement accuracy.

[0053] The weighing top plate 24 is arranged above the weighing head 23. In order to further improve the accuracy of weighing and make the force received by the weighing sensor 22 always in the center position, the weighing head 23 is spherical, and a circular arc surface 241 cooperating with the weighing head 23 is arranged below the weighing top plate 24. A spherical contact structure is formed by the cooperation between the weighing head 23 and the circular arc surface 241. This design enables the weighing top plate 24 to always maintain a point contact state with the weighing head 23. During the weighing process, the weighing top plate 24 is subjected to the pressure applied by the scrap steel trough 1, and the weighing sensor 22 is always subjected to vertical force.

[0054] In the above structure, in the unloaded state, the weighing top plate 24 will tilt due to its own gravity and spherical effect. Therefore, a limit baffle 25 is provided. A limit groove 231 is provided on the outer wall of the weighing pressure head 23. The limit groove 231 in this embodiment is an annular groove provided in the circumferential direction of the weighing pressure head 23. The limit baffle 25 is provided at the bottom of the weighing top plate 24, and the limit baffle 25 is fixed to the bottom of the weighing top plate 24 by bolts, and the limit baffle 25 is located in the limit groove 231. Through the restricting effect of the limit baffle 25, the weighing pressure head 23 will not slide off the top plate when there is no pressure on it.

[0055] The guide block assembly includes a plurality of special guide blocks 3 arranged on the periphery of the weighing top plate 24. The number of special guide blocks 3 is related to the shape of the guide support block 12. The guide support block 12 in this embodiment is in the shape of a rectangular parallelepiped and is provided with four outer side walls. Therefore, four special guide blocks 3 are provided in this embodiment. The four special guide blocks 3 are respectively matched with the side walls of a guide support block 12. In addition, the four guide support blocks 12 are arranged around the weighing top plate 24. The special guide block 3 is provided with an inclined guide surface 33 and a fitting surface 34; the guide support block 12 acts on the weighing top plate 24, and the fitting surface 34 fits on the outer side wall of the guide support block 12.

[0056] Four special guide blocks 3 cooperate to form an installation cavity 35, and the weighing assembly 2 is arranged in the installation cavity. Specifically, the special guide block 3 includes a guide base plate 31 and an inclined guide block 32 arranged at the bottom, and the guide base plate 31 and the inclined guide block 32 are integrally formed; the inclined guide surface 33 and the fitting surface 34 are arranged on the inclined guide block 32. The guide base plates 31 of the four special guide blocks 3 are connected by welding, so that the installation grooves cooperate to form an installation cavity, and the top of the installation cavity is an opening. The weighing base plate 21 is fixedly installed at the bottom of the installation cavity by bolts, and the bottom surface size of the installation cavity is adapted to the weighing base plate 21. The weighing top plate 24 is arranged at the opening of the installation cavity.

[0057] The special guide block 3 is specially designed according to the guide support block 12 at the bottom of the scrap steel trough 1 when weighing. When the scrap steel trough 1 is lowered by the crane, it slides downward along the inclined guide surface 33, so that the guide support block 12 can be loaded onto the weighing top plate 24, thereby accurately and quickly guiding and limiting the scrap steel trough 1 to be placed in the weighing position. In addition, the fitting surface 34 will fit with the side wall of the weighing guide block, thereby effectively preventing the scrap steel from falling into the weighing assembly 2, thereby ensuring the accuracy of the scrap steel weighing.

[0058] Therefore, in this embodiment, a total of four groups of weighing modules consisting of weighing components 2 and guide block components are provided, so that they can be matched with the four guide support blocks 12 of the scrap steel trough 1. The scale table is eliminated, which greatly reduces the inaccurate weighing caused by the scale table being stuck, improves the accuracy and stability of the scrap steel scale, and greatly reduces the production and manufacturing costs. At the same time, the structure is simple, the subsequent maintenance cost is reduced, and the service life is increased. In addition, the volume is greatly reduced, and the transportation cost will be greatly reduced.

[0059] In addition, in the process of loading the scrap steel trough 1 into the scrap steel scale, a large vertical and lateral impact force will inevitably be generated. In order to ensure that the scrap steel electronic scale has sufficient impact resistance to meet the accuracy requirements of the production line and extend the service life of the weighing module, the non-table scrap steel electronic scale has taken the following two measures against the above impact force.

[0060] First, when selecting the range of the weighing sensor 22, it should be ensured that its total range is more than twice the maximum weighing load, so that the impact force generated by the scrap steel trough 1 during the placement process does not exceed the total load of the sensor, thereby achieving the effect of resisting vertical impact.

[0061] Second, a cushion pad 44 is provided at the bottom of the weighing base plate 21. In this embodiment, a polyurethane cushion pad 4 is used, which effectively plays a role of buffering and vibration reduction.

[0062] The above-described embodiments are only preferred solutions of the present invention and are not intended to limit the present invention in any form. Other variations and modifications are possible without exceeding the technical solutions described in the claims.

Claims

1. A non-table scrap steel electronic scale, characterized in that: include: A weighing assembly, comprising a weighing top plate and a load-bearing sensor arranged below the weighing top plate; The guide block assembly includes a plurality of special guide blocks arranged on the periphery of the weighing top plate, and the special guide blocks are provided with an inclined guide surface and a fitting surface; The scrap steel trough has a guide support block at the bottom thereof, the guide support block acts on the weighing top plate, and the fitting surface fits on the outer side wall of the guide support block.

2. The non-table scrap steel electronic scale according to claim 1 is characterized in that: The mounting grooves of several special guide blocks cooperate to form a mounting cavity, and the weighing component is arranged in the mounting cavity.

3. The non-table scrap steel electronic scale according to claim 1 or 2, characterized in that: The guide block assembly comprises four special guide blocks, and the special guide blocks comprise a guide base plate arranged at the bottom and an inclined guide block; the inclined guide surface and the fitting surface are arranged on the inclined guide block.

4. The non-table scrap steel electronic scale according to claim 1 or 2, characterized in that: The weighing assembly also includes a weighing base plate, a weighing sensor installed on the weighing base plate, a weighing pressure head arranged on the top of the weighing sensor, and a weighing top plate arranged on the weighing pressure head.

5. The non-table electronic scale for scrap steel according to claim 4 is characterized in that: The weighing pressure head is spherical, and an arc surface matching with the weighing pressure head is arranged below the weighing top plate.

6. The non-table scrap steel electronic scale according to claim 4 is characterized in that: The outer side wall of the weighing pressure head is provided with a limit groove, the bottom of the weighing top plate is provided with a limit baffle, and the limit baffle is located in the limit groove.

7. The non-table scrap steel electronic scale according to claim 4 is characterized in that: A buffer pad is arranged at the bottom of the weighing bottom plate.

8. The non-table electronic scale for scrap steel according to claim 4 is characterized in that: The top of the weighing sensor is provided with a mounting convex head, and the bottom of the load-bearing pressure head is provided with a mounting groove matched with the mounting convex head.

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