Weighing Module

Abstract

The present invention discloses a weighing module, which includes a module top plate, a module bottom plate, a cushion block, a weighing sensor and a lubricating mechanism, wherein the weighing sensor is fixed on the module bottom plate, and the cushion block is installed between the weighing sensor and the module bottom plate; the lubricating mechanism is arranged on the upper end surface of the weighing sensor, and the module top plate is arranged on the lubricating mechanism, and the module top plate, the weighing sensor and the lubricating mechanism are connected as a whole through a fixing piece; an anti-overturning protection mechanism, a 360° horizontal limit mechanism and a self-resetting mechanism are arranged in the module top plate, and the fixing piece fixes the anti-overturning protection mechanism, the 360° horizontal limit mechanism and the self-resetting mechanism in the module top plate. The present invention can realize a low-cost module, so that it has a larger profit margin and ensures a price advantage. At the same time, the weighing module can also realize a low-profile weighing module, which is convenient for lowering the center of gravity of the material tank and ensuring safety, and is convenient for replacing existing products in the market and has flexible interchangeability.

Description

Technical Field

[0001] The invention relates to a weighing module. Background Art

[0002] In cement, chemical, pharmaceutical, animal husbandry and other industries, weighing is commonly used to batch materials or control material levels. Specifically, multiple weighing modules are installed at the bottom of the load-bearing parts (such as tanks, hoppers, silos, containers, etc.), and the weighing sensors inside the weighing modules complete the material measurement.

[0003] At present, a typical weighing module mainly includes: a bottom plate, a top plate, a cushion block, a weighing sensor and a force transmission member. The weighing sensor is fastened on the bottom plate, and the front end is connected to the top plate through the force transmission member, so as to receive the weight transmission from the load-bearing member.

[0004] Usually, for weighing modules with smaller capacity (less than 5t), beam-type weighing sensors are often used, such as the weighing module invented in patent CN103674212. This type of weighing module uses a complex welded top plate structure to achieve connection with the load-bearing component and mechanical protection of the tank, uses a tumbler structure as a force transmission component, and realizes the transportation and installation positioning functions of the module through a transport kit.

[0005] However, this type of weighing module has a high profile, is complex to manufacture, and has a high manufacturing cost. After the module is installed, a jack or a crane is required to lift the material tank, take out the transport kit, and put the material tank back down before normal weighing can be performed.

[0006] In view of this, those skilled in the art are in urgent need of developing a new type of weighing module in order to solve the above technical problems. Summary of the invention

[0007] The technical problem to be solved by the present invention is to provide a weighing module in order to overcome the defects of the weighing module in the prior art, such as high profile, complex manufacturing and high manufacturing cost.

[0008] The present invention solves the above technical problems through the following technical solutions:

[0009] A weighing module, characterized in that the weighing module comprises a module top plate, a module bottom plate, a cushion block, a weighing sensor and a lubricating mechanism, the weighing sensor is fixed on the module bottom plate, and the cushion block is installed between the weighing sensor and the module bottom plate;

[0010] The lubricating mechanism is arranged on the upper end surface of the weighing sensor, the module top plate is arranged on the lubricating mechanism, and the module top plate, the weighing sensor and the lubricating mechanism are connected as a whole through a fixing member;

[0011] An anti-overturning protection mechanism, a 360° horizontal limiting mechanism and a self-resetting mechanism are arranged in the module top plate, and the fixing member fixes the anti-overturning protection mechanism, the 360° horizontal limiting mechanism and the self-resetting mechanism in the module top plate.

[0012] According to one embodiment of the present invention, the anti-overturning protection mechanism includes an anti-overturning gasket, and the 360° horizontal limiting mechanism includes a spacer;

[0013] The module top plate is provided with a through center hole, the force transmission device is provided with a through mounting hole, the spacer is embedded in the center hole and the mounting hole, and there is a gap between the spacer and the center hole of the module top plate;

[0014] The anti-overturning gasket is sleeved on the fixing piece and fixed to the top end of the spacer sleeve, and the fixing piece penetrates into the spacer sleeve and is fixed to the weighing sensor.

[0015] According to an embodiment of the present invention, the fixing member is a standard hexagonal bolt.

[0016] According to one embodiment of the present invention, the center hole is a stepped hole, including a first hole and a second hole connected up and down, the diameter of the first hole is larger than the second hole, the second hole matches the mounting hole, the spacer is installed in the second hole and the mounting hole, and the anti-overturning gasket is located in the first hole.

[0017] According to an embodiment of the present invention, the self-resetting mechanism comprises a self-resetting rubber and a limit ring, the self-resetting rubber sleeve is arranged on the top end of the fixing member, and the limit ring is locked in the first hole of the module top plate.

[0018] According to one embodiment of the present invention, the weighing sensor is a beam-type weighing sensor.

[0019] According to one embodiment of the present invention, the lubrication mechanism comprises a spherical washer group and a sealing ring, the spherical washer is arranged between the module top plate and the weighing sensor, and relative sliding occurs between the spherical washers as the weighing module is loaded and unloaded;

[0020] The sealing ring seals the spherical gasket and seals the gap between the module top plate and the spherical gasket; the top of the spherical gasket group is isolated from the outside through the self-resetting rubber seal.

[0021] According to one embodiment of the present invention, the spherical washer includes a concave spherical washer and a convex spherical washer, and the concave spherical washer and the convex spherical washer are matched and overlapped up and down; grease is applied between the spherical washers or between the module top plate and the spherical washers.

[0022] According to one embodiment of the present invention, a transport installation plate is provided between the module top plate and the module bottom plate.

[0023] According to one embodiment of the present invention, a fixing bolt is respectively provided on the corresponding side of the module top plate and the module bottom plate, and a mounting portion is respectively provided on the upper and lower ends of the transport installation plate, and the transport installation plate is connected between the module top plate and the module bottom plate by connecting the mounting portion with the corresponding fixing bolt.

[0024] The positive and progressive effects of the present invention are:

[0025] The weighing module of the present invention can realize a low-cost module, so that it has a larger profit margin and ensures price advantage. At the same time, the weighing module can also realize a low-profile weighing module, which is convenient for lowering the center of gravity of the material tank and ensuring safety. At the same time, it is convenient to replace existing products in the market and has flexible interchangeability. The weighing module integrates many mechanical protection functions to ensure safety in use. The lubrication mechanism of the weighing module ensures the reliability of the module in long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above and other features, properties and advantages of the present invention will become more apparent through the following description in conjunction with the accompanying drawings and embodiments, in which the same reference numerals always represent the same features, wherein:

[0027] Figure 1 It is a three-dimensional diagram of the weighing module of the present invention.

[0028] Figure 2 It is an exploded view of the weighing module of the present invention.

[0029] Figure 3 It is an exploded view of the weighing module of the present invention.

[0030] Figure 4 It is a longitudinal cross-sectional view of the weighing module of the present invention.

[0031] Figure 5 It is a schematic diagram of the rotation of the module top plate in the weighing module of the present invention.

[0032] Figure 6 It is a schematic diagram of the lubrication mechanism of the weighing module of the present invention in the module weighing state.

[0033] Figure 7 It is a schematic diagram of the lubrication mechanism of the weighing module of the present invention when the module is lifted.

[0034] [Reference Signs]

[0035] Module top plate 10

[0036] Module base plate 20

[0037] Block 30

[0038] Load Cell 40

[0039] and lubrication mechanism 50

[0040] Bolt 41

[0041] Spacer 60

[0042] Anti-overturning pad 70

[0043] Center hole 11

[0044] Mounting hole 51

[0045] Hexagonal bolt 80

[0046] First hole 12

[0047] Second hole 13

[0048] Self-resetting rubber 90

[0049] Limit ring 91

[0050] Sealing ring 53

[0051] Concave spherical washer 51

[0052] Convex spherical washer 52

[0053] Transport mounting plate 21

[0054] Fixing bolt 22

[0055] Mounting section 23 DETAILED DESCRIPTION

[0056] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0057] Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Reference will now be made in detail to preferred embodiments of the present invention, examples of which are shown in the accompanying drawings. Wherever possible, the same reference numerals will be used throughout the drawings to represent the same or similar parts.

[0058] Furthermore, although the terms used in the present invention are selected from well-known and commonly used terms, some terms mentioned in the present invention specification may be selected by the applicant at his or her discretion, and their detailed meanings are explained in the relevant parts of the description of this document.

[0059] Furthermore, it is required that the present invention be understood not only by the actual terms used but also by the meanings connoted by each term.

[0060] Figure 1 It is a three-dimensional diagram of the weighing module of the present invention. Figure 2 It is an exploded view of the weighing module of the present invention. Figure 3 It is an exploded view of the weighing module of the present invention. Figure 4 It is a longitudinal cross-sectional view of the weighing module of the present invention. Figure 5 It is a schematic diagram of the rotation of the module top plate in the weighing module of the present invention.

[0061] like Figures 1 to 4 As shown, the present invention discloses a weighing module, which includes a module top plate 10, a module bottom plate 20, a cushion block 30, a weighing sensor 40 and a lubricating mechanism 50, wherein the weighing sensor 40 is fixed on the module bottom plate 20, and the cushion block 30 is installed between the weighing sensor 40 and the module bottom plate 20, for example, the weighing sensor 40 and the cushion block 30 are fixed on the module bottom plate 20 by bolts 41. The lubricating mechanism 50 is arranged on the upper end surface of the weighing sensor 40, and the module top plate 10 is arranged on the lubricating mechanism 50, and the module top plate 10, the weighing sensor 40 and the lubricating mechanism 50 are fixedly connected as a whole by a fixing member. An anti-overturning protection mechanism, a 360° horizontal limiting mechanism and a self-resetting mechanism are arranged in the module top plate 10, and the fixing member fixes the anti-overturning protection mechanism, the 360° horizontal limiting mechanism and the self-resetting mechanism in the module top plate 10.

[0062] Here, the module top plate 10 and the module bottom plate 20 are simply machined without using bending, welding and other processes, thereby reducing the cost of parts, reducing the size of parts, and reducing the quality risk of the product due to the use of complex processes.

[0063] Preferably, the 360° horizontal limit mechanism includes a spacer 60, the anti-rollover protection mechanism includes an anti-rollover gasket 70, a through center hole 11 is provided on the module top plate 10, a through mounting hole 51 is provided on the lubrication mechanism 50, the spacer 60 is embedded in the center hole 11 and the mounting hole 51, and there is a gap between the spacer 60 and the center hole 11 of the module top plate 10, so as to allow the top plate 10 to tilt. The gap can allow the module top plate 10 to have a certain horizontal movement, and also play a 360° horizontal limit function.

[0064] The anti-overturning gasket is sleeved on the fixing member and fixed to the top of the spacer 60, and the fixing member is inserted into the spacer 60 and fixed to the weighing sensor 40. The fixing member is a standard hexagonal bolt 80. The module top plate 10 is installed on the weighing sensor 40 by the standard hexagonal bolt 80.

[0065] The anti-overturning gasket 70 can provide anti-overturning force together with the hexagonal bolt 80 and the weighing sensor 40 when the tank is lifted. The spacer 60 can ensure the thread length of the hexagonal bolt 80 screwed into the weighing sensor 40 during the installation process, ensuring that the thread provides sufficient anti-overturning force.

[0066] At the same time, the spacer 60 can ensure that a certain gap is maintained between the anti-overturning gasket 70 and the module top plate 10, thereby allowing the top plate to tilt. The gap between the center hole 11 of the module top plate 10 and the spacer 60 can allow the top plate to produce horizontal displacement relative to the sensor, compensate for the thermal expansion and contraction of the tank, and provide a 360° horizontal limit function.

[0067] Furthermore, the center hole 11 is a stepped hole, including a first hole 12 and a second hole 13 connected up and down, the diameter of the first hole 12 is larger than the second hole 13, the second hole 13 is matched with the mounting hole 51, the spacer 60 is installed in the second hole 13 and the mounting hole 51, and the anti-overturning gasket is located in the first hole 12.

[0068] The self-resetting mechanism includes a self-resetting rubber 90 and a limit retaining ring 91. The self-resetting rubber 90 is sleeved on the top of the fixing member (i.e., the external hexagonal bolt 80 in this embodiment), and the limit retaining ring 91 is locked in the first hole 12 of the module top plate 10. The self-resetting rubber 90 can provide a restoring force when the external force on the module top plate 10 is removed, so that the module top plate 10 automatically returns to the center position.

[0069] The self-resetting rubber 90 can provide buffering when the module is subjected to horizontal force. After the horizontal force is removed, the rubber deforms to generate restoring force, thereby realizing the self-resetting function.

[0070] Here, the weighing sensor 40 is preferably a beam-type weighing sensor, which can directly integrate the anti-overturning protection function and the 360° horizontal limit function on the sensor, without the need to provide additional protection devices, thereby reducing the cost and profile height of the weighing module.

[0071] Furthermore, the lubrication mechanism 50 includes a spherical gasket and a sealing ring 53. The spherical gasket is arranged between the module top plate 10 and the weighing sensor 40. The spherical gaskets slide relative to each other as the weighing module is loaded and unloaded. The module top plate and the spherical gasket slide relative to each other due to the thermal expansion and contraction of the tank. The sealing ring 53 seals the spherical gasket and seals the gap between the module top plate 10 and the spherical gasket. The sealing ring 53 preferably adopts a V-shaped lip structure, which can ensure that the module has a good sealing effect under normal weighing and wind lifting conditions.

[0072] The spherical gasket includes a concave spherical gasket 51 and a convex spherical gasket 52, and the concave spherical gasket 51 and the convex spherical gasket 52 are matched and overlapped up and down. During the module assembly process, grease is applied between the spherical gaskets or between the module top plate 10 and the spherical gaskets. In order to ensure the long-term lubrication effect of the module, the grease needs to be isolated from the outside to prevent water, dust, and particles from entering the grease. The top of the spherical gasket group is sealed by a self-resetting rubber 90 to be isolated from the outside.

[0073] The concave spherical gasket 51 and the convex spherical gasket 52 are preferably a set of standard spherical gaskets. The standard spherical gaskets allow the module top plate 10 to have a certain angle relative to the weighing sensor 40 to compensate for the non-parallelism between the tank legs and the foundation.

[0074] In addition, a transport installation plate 21 is provided between the module top plate 10 and the module bottom plate 20. The transport installation plate 21 is not subject to vertical force, so after the module is installed, there is no need to lift the tank again, and the transport installation plate can be directly taken out. Specifically, a fixing bolt 22 is provided on the corresponding side of the module top plate 10 and the module bottom plate 20, and a mounting portion 23 is provided on the upper and lower ends of the transport installation plate 21, respectively, and the mounting portion 23 is connected to the corresponding fixing bolt 22, so that the transport installation plate 21 is connected between the module top plate 10 and the module bottom plate 20. The fixing bolt 22 can be used to install the grounding cable at the same time. After removing the mounting plate, the module grounding cable is installed using the same bolt. In this way, the weighing module is conveniently installed by using the transport installation plate connected by the opening.

[0075] The open structure transport mounting plate used here ensures the positioning during the module transportation and installation process. After the module is installed in place, since the transport mounting plate does not bear the vertical load, the mounting plate can be removed for weighing without lifting the tank.

[0076] According to the above structure, the force transmission device, the anti-overturning protection mechanism and the connection of the internal parts of the weighing module of the present invention all use standard parts, which can reduce the product cost.

[0077] The weighing module of the present invention has the following advantages:

[0078] 1. Low profile: Lowering the center of gravity of the tank makes it safer when bearing wind loads. At the same time, the low profile makes it easier to replace existing products in the market, making it more flexible for customers to choose.

[0079] 2. Low cost: It makes the module have a larger profit margin and ensures price advantage. The structure is simple and most parts are standard parts.

[0080] 3. Mechanical protection function: anti-overturning function, 360° limit protection function.

[0081] 4. Self-reset function: The top plate is allowed to produce horizontal displacement when the tank expands or contracts, and it will automatically reset after the external force is removed.

[0082] 5. Installation convenience: The module top plate allows a certain angle adjustment, which can adapt to compensate for the non-parallelism between the tank legs and the foundation. The transport installation plate can ensure that the module is fixed in position during transportation and installation, and is easy to disassemble without lifting the tank.

[0083] In summary, the weighing module of the present invention can realize a low-cost module, so that it has a larger profit margin and ensures price advantage. At the same time, the weighing module can also realize a low-profile weighing module, which is convenient for lowering the center of gravity of the material tank and ensuring safety. At the same time, it is convenient to replace existing products in the market and has flexible interchangeability. The weighing module integrates many mechanical protection functions to ensure safety in use. The lubrication mechanism of the weighing module ensures the reliability of the module in long-term use.

[0084] Although the specific embodiments of the present invention are described above, it should be understood by those skilled in the art that these are only examples, and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A weighing module, characterized in that: The weighing module comprises a module top plate, a module bottom plate, a cushion block, a weighing sensor and a lubricating mechanism, wherein the weighing sensor is fixed on the module bottom plate, and the cushion block is installed between the weighing sensor and the module bottom plate; The lubricating mechanism is arranged on the upper end surface of the weighing sensor, the module top plate is arranged on the lubricating mechanism, and the module top plate, the weighing sensor and the lubricating mechanism are connected as a whole through a fixing member; The module top plate is provided with an anti-overturning protection mechanism, a 360° horizontal limiting mechanism and a self-resetting mechanism, and the fixing member fixes the anti-overturning protection mechanism, the 360° horizontal limiting mechanism and the self-resetting mechanism in the module top plate; The self-resetting mechanism comprises a self-resetting rubber, which is sleeved on the top of the fixing member and is located between the fixing member and the module top plate; The lubrication mechanism comprises a spherical washer group and a sealing ring, wherein the spherical washer is arranged between the module top plate and the weighing sensor, and relative sliding occurs between the spherical washers as the weighing module is loaded or unloaded; The sealing ring seals the spherical gasket and seals the gap between the module top plate and the spherical gasket; the top of the spherical gasket group is isolated from the outside through the self-resetting rubber seal.

2. The weighing module according to claim 1, characterized in that: The anti-overturning protection mechanism includes an anti-overturning gasket, and the 360° horizontal limiting mechanism includes a spacer; The module top plate is provided with a through center hole, the lubricating mechanism is provided with a through mounting hole, the spacer is embedded in the center hole and the mounting hole, and there is a gap between the spacer and the center hole of the module top plate; The anti-overturning gasket is sleeved on the fixing piece and fixed to the top end of the spacer sleeve, and the fixing piece penetrates into the spacer sleeve and is fixed to the inside of the weighing sensor.

3. The weighing module according to claim 2, characterized in that: The fixing piece is a standard hexagonal bolt.

4. The weighing module according to claim 2, characterized in that: The center hole is a stepped hole, including a first hole and a second hole connected up and down, the diameter of the first hole is larger than the second hole, the second hole matches and corresponds to the mounting hole, the spacer is installed in the second hole and the mounting hole, and the anti-overturning gasket is located in the first hole.

5. The weighing module according to claim 4, characterized in that: The self-resetting mechanism comprises a limit ring, and the limit ring is locked in the first hole of the module top plate.

6. The weighing module according to claim 1, characterized in that: The weighing sensor is a beam-type weighing sensor.

7. The weighing module according to claim 1, characterized in that: The spherical washers include a concave spherical washer and a convex spherical washer, and the concave spherical washer and the convex spherical washer are matched and overlapped up and down; grease is applied between the spherical washers or between the module top plate and the spherical washers.

8. The weighing module according to any one of claims 1 to 7, characterized in that: A transport installation plate is arranged between the module top plate and the module bottom plate.

9. The weighing module according to claim 8, characterized in that: A fixing bolt is respectively provided on the corresponding side of the module top plate and the module bottom plate, and a mounting portion is respectively provided on the upper and lower ends of the transport installation plate, which is connected with the corresponding fixing bolt through the mounting portion, so that the transport installation plate is connected between the module top plate and the module bottom plate.

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