Primary weighing hopper with discharge port seal

Abstract

The utility model relates to the technical field of sample collection equipment of power plants, ports and the like, in particular to a primary weighing hopper with a sealed discharge port, which comprises a hopper support, a hopper component is mounted on the hopper support through a fixing screw component, a discharge port is arranged at the bottom of the hopper component, a hopper door is hinged to the discharge port, and the discharge port is connected with the hopper support. A weighing sensor used for detecting the weight of a coal sample in the hopper assembly is arranged on the hopper support, a sealing structure is arranged at the discharging opening, and the sealing structure comprises a rubber plate which is located and pressed at the discharging opening through a detachable locating and pressing mechanism and can make sealing friction contact with the hopper door. According to the primary weighing hopper with the sealed discharge hole, scattered coal at the hopper door of the primary weighing hopper is eliminated; pollution and influence on the environment and other equipment are eliminated, the labor amount is reduced, the operation effect and the appearance image of the equipment are improved, and meanwhile the accuracy of primary weighing is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of sample collection equipment for power plants, ports, etc., specifically a primary weighing hopper with a sealed discharge port. Background Technology

[0002] Background: The truck sampling machine is mainly used for sampling coal from truck beds, and its main type is a bridge structure. The main body of the equipment includes: large and small overhead cranes, hydraulic (electric) drive system, long spiral full-section sampling head, primary feeder, crusher, secondary feeding and reducing integrated machine, collector (or packaging machine) and control system; supporting auxiliary facilities include: ranging and positioning system, vehicle identification system, unattended operation system, large water bypass, monitoring lighting, etc.

[0003] Vehicle sampling machines are generally set up outdoors, with supporting steel structures and rainproof canopies. In cold northern regions, operation rooms and sample preparation rooms (fixed buildings) need to be built, while in southern regions, steel structure prefabricated steel panel houses are built.

[0004] When the operator operates the large and small overhead cranes and long spiral full-section sampling heads to sample coal in the control room, if the moisture content of the coal sample is normal, the coal sample is sent to the primary weighing hopper and then completes the normal sampling process; if the moisture content of the coal sample is high, the coal sample is sent to the high moisture bypass collection bucket.

[0005] When the coal sample enters the primary weighing hopper, a clearance exists between the hopper door at the bottom and the side wall. This clearance allows coal to spill out through the bottom gap, potentially landing on the ground or other equipment, causing environmental pollution and equipment damage. It also complicates subsequent cleaning, increases labor, reduces equipment efficiency and appearance, and makes it easier for coal to fall into receiving devices below, thus affecting the accuracy of the primary weighing. Summary of the Invention

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this utility model provides a primary weighing hopper with a sealed discharge port, eliminating coal spillage at the hopper gate; eliminating pollution and impact on the environment and other equipment; reducing labor intensity; improving equipment performance and appearance; and enhancing the accuracy of primary weighing.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: a primary weighing hopper with a sealed discharge port, comprising a hopper support, a hopper assembly mounted on the hopper support via a fixing screw assembly, a discharge port at the bottom of the hopper assembly, a hopper door hinged to the discharge port, a weighing sensor for detecting the weight of the coal sample inside the hopper assembly mounted on the hopper support, and a sealing structure at the discharge port, the sealing structure comprising a rubber plate positioned and pressed at the discharge port by a detachable positioning and pressing mechanism and capable of sealing frictional contact with the hopper door.

[0010] Preferably, the detachable positioning and clamping mechanism includes a pressure plate that presses the rubber plate against the bottom discharge port of the hopper assembly. Both the pressure plate and the rubber plate are provided with through holes. The mechanism also includes a bolt that can be used to position the pressure plate and the rubber plate together at the bottom discharge port of the hopper assembly through the through holes. The bolt is threadedly connected to the fixing screw assembly.

[0011] Preferably, it also includes an opening and closing drive mechanism for driving the hopper gate to open and close, the opening and closing drive mechanism including a motor push rod hinged to the top of the hopper assembly, the output end of the motor push rod being hinged to the hopper gate via a second pin.

[0012] Preferably, both ends of the hopper gate are fixedly connected to bearing seats with built-in rotatable deep groove ball bearings, and the deep groove ball bearings are positioned at the bottom of the hopper assembly by means of the bearing seats and pins.

[0013] Preferably, both the hopper assembly and the hopper gate are equipped with inductive switches. The inductive switch on the hopper assembly is fixedly installed on the hopper assembly by an inductive switch bracket one, and the inductive switch on the hopper gate is fixedly installed on the hopper gate by an inductive switch bracket two.

[0014] Preferably, it also includes a flat washer and a spring washer adapted to the bolt, the flat washer and the spring washer being disposed at the connection between the bolt and the pressure plate.

[0015] Preferably, a vibrator is also fixedly installed on the hopper assembly.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a primary weighing hopper with a sealed discharge port, which has the following advantages:

[0018] This primary weighing hopper with a sealed discharge port features a sealing structure that effectively seals the gap between the discharge port and the hopper door when the door is closed, preventing material spillage. The rubber plate facilitates sealing and also reduces noise, preventing impacts during opening and closing and extending service life. A detachable positioning and clamping mechanism allows for easy replacement of the rubber plate. The rubber plate also ensures the accuracy of the weighing sensor in detecting coal samples. This primary weighing hopper with a sealed discharge port eliminates coal spillage at the hopper door, reduces pollution and impact on the environment and other equipment, reduces labor, improves equipment performance and appearance, and enhances the accuracy of primary weighing. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the front planar structure of this utility model;

[0020] Figure 2 This is a side view of the structural plan of this utility model;

[0021] Figure 3 This utility model Figure 2 A magnified schematic diagram of the local structure at point A;

[0022] Figure 4 This is a top view of the hopper assembly of this utility model.

[0023] The following are labeled in the attached diagram: 1. Hopper assembly; 2. Fixed screw assembly; 3. Weighing sensor; 4. Induction switch bracket one; 5. Induction switch; 6. Induction switch bracket two; 7. Hopper bracket; 8. Pin one; 9. Bearing seat; 10. Deep groove ball bearing; 11. Vibrator; 12. Motor push rod; 13. Hopper door; 14. Pin two; 15. Bolt; 16. Flat washer; 17. Spring washer; 18. Pressure plate; 19. Rubber plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0025] Please see Figure 1-4A primary weighing hopper with a sealed discharge port includes a hopper support 7, on which a hopper assembly 1 is mounted via a fixing screw assembly 2. The bottom of the hopper assembly 1 has a discharge port, and a hopper door 13 is hinged to the discharge port. A weighing sensor 3 for detecting the weight of the coal sample inside the hopper assembly 1 is mounted on the hopper support 7. A sealing structure is provided at the discharge port, comprising a rubber plate 19 that is positioned and pressed at the discharge port by a detachable positioning and pressing mechanism and can make sealing frictional contact with the hopper door 13.

[0026] Specifically, the detachable positioning and clamping mechanism includes a pressure plate 18, which presses the rubber plate 19 onto the bottom discharge port of the hopper assembly 1. Both the pressure plate 18 and the rubber plate 19 are provided with through holes. The mechanism also includes a bolt 15 that can be used to position the pressure plate 18 and the rubber plate 19 together at the bottom discharge port of the hopper assembly 1 through the through holes. The bolt 15 is threadedly connected to the fixing screw assembly 2 for easy disassembly.

[0027] Specifically, it also includes an opening and closing drive mechanism for driving the hopper gate 13 to open and close. The opening and closing drive mechanism includes a motor push rod 12 hinged to the top of the hopper assembly 1. The output end of the motor push rod 12 is hinged to the hopper gate 13 through a second pin 14.

[0028] Specifically, both ends of the hopper gate 13 are fixedly connected to bearing seats 9 with built-in rotatable deep groove ball bearings 10. The deep groove ball bearings 10 are positioned at the bottom of the hopper assembly 1 through the bearing seats 9 and the pin shaft 8. The hopper support 7, the pin shaft 8 and the bearing seats 9 facilitate the installation of the hopper gate 13 and improve the stability of the hopper gate 13 when opening and closing.

[0029] Specifically, both the hopper assembly 1 and the hopper gate 13 are equipped with induction switches 5. The induction switch 5 on the hopper assembly 1 is fixedly installed on the hopper assembly 1 by induction switch bracket 1 4, and the induction switch 5 on the hopper gate 13 is fixedly installed on the hopper gate 13 by induction switch bracket 2 6. The induction switch 5 on the hopper assembly 1 facilitates sensing the opening and closing of the hopper gate 13, and the induction switch 5 on the hopper gate 13 facilitates sensing the unloading status.

[0030] Specifically, it also includes a flat washer 16 and a spring washer 17 adapted to the bolt 15. The flat washer 16 and the spring washer 17 are set at the connection between the bolt 15 and the pressure plate 18 to facilitate the adjustment of the clamping strength.

[0031] Specifically, a vibrator 11 is also fixedly installed on the hopper assembly 1. The vibrator 11 can be started during unloading to discharge the coal material remaining in the hopper assembly 1 as cleanly as possible.

[0032] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0033] It should be readily understood that “on,” “above,” and “on top of” in this disclosure should be interpreted in the broadest manner, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on something” but also “on something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0034] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A primary weigh hopper with a sealable discharge opening, characterized by: The application relates to a coal sample hopper assembly, which comprises a hopper support (7) provided with a hopper assembly (1) through a fixing screw rod assembly (2), the bottom of the hopper assembly (1) is provided with a discharge port, the discharge port is hingedly provided with a hopper door (13), the hopper support (7) is provided with a weighing sensor (3) for detecting the weight of the coal sample in the hopper assembly (1), and a sealing structure is arranged at the discharge port, which comprises a rubber plate (19) positioned and pressed at the discharge port through a detachable positioning and pressing mechanism and capable of being in sealed frictional contact with the hopper door (13).

2. A primary weighing hopper with discharge opening sealing according to claim 1, characterized in that: The detachable positioning and pressing mechanism comprises a pressing plate (18) for pressing the rubber plate (19) at the bottom discharge port of the hopper assembly (1), the pressing plate (18) and the rubber plate (19) are both provided with through holes, and the mechanism further comprises a bolt (15) for positioning the pressing plate (18) and the rubber plate (19) at the bottom discharge port of the hopper assembly (1) through the through holes, and the bolt (15) is in threaded connection with the fixing screw rod assembly (2).

3. A primary weighing hopper with a sealable outlet according to claim 2, characterized in that: The application further comprises an opening and closing driving mechanism for driving the hopper door (13) to open and close, the opening and closing driving mechanism comprises a motor push rod (12) hingedly arranged at the top of the hopper assembly (1), and the output end of the motor push rod (12) is hingedly connected with the hopper door (13) through a pin shaft II (14).

4. A primary weighing hopper with discharge opening sealing according to claim 3, characterized in that: Both ends of the hopper door (13) are fixedly connected with bearing seats (9) rotatably connected with deep groove ball bearings (10), and the deep groove ball bearings (10) are positioned at the bottom of the hopper assembly (1) through the bearing seats (9) and a pin shaft I (8).

5. A primary weighing hopper with discharge opening sealing according to claim 4, characterized in that: The hopper assembly (1) and the hopper door (13) are both provided with inductive switches (5), the inductive switch (5) arranged on the hopper assembly (1) is fixedly arranged on the hopper assembly (1) through an inductive switch support I (4), and the inductive switch (5) arranged on the hopper door (13) is fixedly arranged on the hopper door (13) through an inductive switch support II (6).

6. A primary weighing hopper with discharge opening sealing according to claim 5, characterized in that: The application further comprises a flat washer (16) and a spring washer (17) matched with the bolt (15), and the flat washer (16) and the spring washer (17) are arranged at the connection position of the bolt (15) and the pressing plate (18).

7. A primary weighing hopper with a sealable outlet according to claim 6, characterized in that: The hopper assembly (1) is further fixedly provided with a vibrator (11).

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