Belt end sampling machine

Abstract

The invention relates to the technical field of sampling devices, in particular to a belt end sampling machine which comprises a sampling assembly, the sampling assembly comprises a driving part, a sampling cover arranged outside the driving part, a sampling disc arranged in the sampling cover and in transmission connection with the driving part, and a wheel disc arranged on the end face of the sampling disc; the protection assembly comprises a protection plate arranged on the end face of the sampling disc and a baffle movably arranged on the end face of the protection plate. The sampling device has the beneficial effects that the protection plate is arranged on the sampling disc, when coal flow enters the sampling cover, the thickness of the sampling disc is increased, the sampling disc is prevented from being damaged due to long-time coal flow impact, the contact area of coal briquettes and the sampling disc is further reduced through the arrangement of the baffle, a certain buffering effect is achieved, and when the sampling machine is started, the sampling disc is prevented from being damaged. The balance weight of the sampling disc is increased, and when sampling is needed, the position of the wheel disc is kept stable.

Description

Technical Field

[0001] The invention relates to the technical field of sampling devices, in particular to a belt end sampling machine. Background Art

[0002] In the belt end sampling system, disc sampling is often used: when not sampling, the disc is on top and the coal retaining surface is below, being washed by the material; when sampling, the disc rotates one circle and contacts the material for sampling; the limit switch (proximity switch) is used to control the disc to rotate one circle at a time to achieve accurate positioning.

[0003] In actual use, due to the inertia of the wheel, the wheel often rotates multiple times in one rotation interval, and cannot be accurately positioned. The control system frequently alarms, bringing hidden dangers to production. In addition, the lower part of this wheel is washed by materials for a long time, and is severely worn, which will cause the upper part to be heavy and the lower part to be light. In severe cases, the wheel will automatically rotate during operation, and even the sampling head will face downward, so that it will be in a sampling state for a long time, affecting the operation of the next level of equipment. Summary of the invention

[0004] In view of the above existing technical problems, the present invention is proposed.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a belt end sampler, which includes a sampling component, the sampling component includes a driving member, a sampling cover arranged outside the driving member, a sampling disk arranged inside the sampling cover and drivingly connected to the driving member, and a wheel opened on the end surface of the sampling disk; a protective component, the protective component includes a protective plate arranged on the end surface of the sampling disk and a baffle movably arranged on the end surface of the protective plate.

[0006] As a preferred solution of the belt end sampling machine of the present invention, the driving member includes a driving motor and a reducer arranged outside the driving motor.

[0007] As a preferred solution of the belt end sampler of the present invention, a drive shaft is arranged between the drive motor and the reducer, and the drive shaft is fixedly connected to the sampling disk.

[0008] As a preferred solution of the belt end sampler of the present invention, the protective plate is located below the sampling disk and is fan-shaped.

[0009] As a preferred solution of the belt end sampler of the present invention, wherein: the end surface of the protective plate is symmetrically provided with a first stopper, the baffle is located between the two first stoppers, and the baffle is slidably connected to the protective plate.

[0010] As a preferred solution of the belt end sampling machine of the present invention, wherein: a baffle plate is provided with a baffle ring, and a plurality of baffle rings are provided.

[0011] As a preferred solution of the belt end sampler of the present invention, the thickness of the proximal end of the baffle is greater than the thickness of the distal end of the baffle.

[0012] As a preferred solution of the belt end sampler of the present invention, the end surface of the sampling disk is provided with a mounting shaft, the mounting shaft is movably arranged with a connecting rod, the outer wall of the mounting shaft is provided with a spring, and the spring is fixedly connected with the connecting rod.

[0013] As a preferred solution of the belt end sampler of the present invention, the connecting rod is connected to the protective plate movable rod, the protective plate is symmetrically arranged in two pieces, and the end surfaces of the two protective plates are also fixedly provided with second stoppers.

[0014] As a preferred solution of the belt end sampler of the present invention, a receiving plate is movably arranged between the protective plate and the baffle, the receiving plate is slidably connected to the protective plate, the receiving plate is slidably connected to the protective plate, and the receiving plate is located between the two second baffles.

[0015] The beneficial effects of the belt end sampler of the present invention are as follows: by arranging a protective plate on the sampling disk, when the coal flow enters the sampling cover, the thickness of the sampling disk is increased to prevent the sampling disk from being damaged due to the impact of the coal flow for a long time; further, by setting the baffle, the contact area between the coal block and the sampling disk is reduced, and a certain buffering effect is played; and when the sampler is started, the counterweight of the sampling disk is increased, and when sampling is required, the position of the wheel disc is kept stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0017] Figure 1 It is an overall schematic diagram of the sampling machine in the present invention.

[0018] Figure 2 It is a cross-sectional view of the sampling machine in the present invention.

[0019] Figure 3 It is a top view of the sampling machine in the present invention.

[0020] Figure 4 It is the cross-sectional view of the sampling machine BB in the present invention.

[0021] Figure 5 It is a cross-sectional view from another angle of the sampling machine in the present invention.

[0022] Figure 6 This is an enlarged view of the sampling machine D in the present invention.

[0023] Figure 7 This is an enlarged view of the sampling machine A in the present invention. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0027] Example 1, reference Figure 1 to Figure 4 , which is the first embodiment of the present invention, and provides a belt end sampler, including a sampling assembly 100, the sampling assembly 100 includes a driving member 101, a sampling cover 102 arranged outside the driving member 101, a sampling disk 103 arranged inside the sampling cover 102 and drivingly connected to the driving member 101, and a wheel 103a opened on the end surface of the sampling disk 103; a protective assembly 200, the protective assembly 200 includes a protective plate 201 arranged on the end surface of the sampling disk 103 and a baffle 202 movably arranged on the end surface of the protective plate 201.

[0028] Preferably, a protective cover is provided on the outside of the driving member 101, and the protective cover is fixedly arranged in the base. A driving motor 104 is arranged above the base, and the driving motor is connected to the reducer 105 through a coupling. When the driving motor 104 is started, the driving shaft 104 is driven to rotate, thereby driving the sampling disk 103 to rotate, so that the wheel disk 103a contacts the coal flow conveyed by the belt, and some coal blocks in the coal flow directly pass through the wheel disk 103a and enter the subsequent sampling device for sampling;

[0029] Furthermore, the sampling cover 102 is provided with a feed port near the coal conveyor belt, so that the coal flow can enter the sampling cover 102 through the feed port. A discharge port is provided below the sampling cover 102, and the discharge port is perpendicular to the drive shaft 106 and is located near the base. The coal flow is discharged through the discharge port and enters the next process.

[0030] Preferably, the roulette wheel 103 is a trapezoidal roulette wheel.

[0031] Preferably, the protective plate 201 is fixedly connected to the end face of the sampling disk 103, and the sampling disk 103 is fixedly connected to the driving disk 106, and rotates synchronously with the driving shaft 106. The position of the protective plate 201 is symmetrical with the position of the wheel disk 103a, that is, the central axis of the protective plate 201 is collinear with the central axis of the wheel disk 103a.

[0032] Furthermore, the protection plate 201 and the baffle 202 are both made of wear-resistant material, and the baffle 202 has a certain elastic deformation property. When the coal flow contacts the baffle 202, the baffle 202 is squeezed and elastically deformed.

[0033] The driving member 101 includes a driving motor 104 and a reducer 105 disposed outside the driving motor 104 .

[0034] A driving shaft 106 is provided between the driving motor 104 and the reducer 105 , and the driving shaft 106 is fixedly connected to the sampling disk 103 .

[0035] Preferably, the drive motor 104 is externally connected to a frequency converter, and the parameters of the frequency converter are adjusted according to the weight of the wheel 103 adapted by the protection component 200: the frequency rise time is set to 15s, the frequency drop time is set to 15s; the maximum frequency is set to 40HZ, and the minimum frequency is set to 15HZ.

[0036] The protection plate 201 is located below the sampling plate 103 and is fan-shaped.

[0037] Preferably, the area of ​​the protective plate 201 is smaller than that of the sampling disk 103, and a wear-resistant plate is installed on the coal blocking surface. While improving the wear resistance of the coal blocking surface, the wheel counterweight is changed to make the wheel coal blocking surface about 15KG heavier than the upper side, ensuring that the sampling port 103a is in the appropriate position when the wheel 103 stops.

[0038] The end surface of the protection plate 201 is symmetrically provided with first stoppers 201 a , and the baffle plate 202 is located between the two first stoppers 201 a , and the baffle plate 202 is slidably connected to the protection plate 201 .

[0039] Preferably, two protective plates 201 are symmetrically arranged, and there is an angle between the two protective plates 201 and the wheel disc 103. The angle between the edge line of the protective plate 201 close to the wheel disc 103 and the wheel disc 103 is less than 30°, and the protective plate 201 is a straight plate.

[0040] Furthermore, the side of the baffle 202 is flat, and the side of the baffle 202 can cooperate with the first block 201a, that is, when the baffle 202 is deformed under the action of the coal flow, the baffle 202 extends to both sides, so that the baffle 202 contacts the two first blocks 201a, driving the protective plate 201 to deflect, that is, the angle between the protective plate 201 and the wheel disc 103 becomes smaller, thereby relieving the force of the coal flow on the wheel disc 103 and increasing the service life of the sampling device.

[0041] Preferably, the baffle 202 has elastic deformation capability, and the baffle 202 is arranged in an arc shape, and the gap between the baffle 202 and the protective plate 201 becomes smaller from the middle to the two sides, that is, the two sides of the baffle 202 can be straight or concave toward one side of the protective plate 201 with a certain arc;

[0042] When the side edge of the baffle 202 is concave with a certain curvature toward one side of the protective plate 201, the concave baffle 202 is tangent to the straight protective plate 201, which further reduces the wear of the protective plate 201 when the baffle 202 slides, and can also more sensitively disperse the pressure exerted by the coal flow to both sides; and at this time, a middle bulge is formed between the baffle 202 and the protective plate 201, and the two sides gradually approach the shape of the wheel disc 103, which is convenient for dividing the coal flow when the coal flow passes through, so that the coal flow is discharged to both sides, reducing the contact time between the baffle 202 and the protective plate 201.

[0043] Furthermore, the first stopper 201a is disposed perpendicularly to the protective plate 201 near the side edge of the baffle 202, so that when the baffle 202 is deformed, the side wall of the baffle 202 is in contact with the first stopper 201a, and the baffle 202 is prevented from directly separating from the protective plate 201 when the baffle 202 is deformed.

[0044] The height of the first stopper 201a close to the baffle 202 is as small as possible, and it is ensured that when the first stopper 201a contacts the side wall of the baffle 202, the baffle 202 is prevented from separating from the first stopper 201a; the side of the first stopper 201a away from the baffle 202 is an inclined surface or a concave shape sunken toward the side of the wheel disc 103, so as to prevent the movement of the coal flow from being restricted due to the existence of the first stopper 201a.

[0045] In summary, when sampling is not required, the protection plate 201 on the end surface of the wheel disc 103 needs to directly contact the coal flow. At this time, the baffle 202 exists, and the coal flow first contacts the baffle 202;

[0046] When the coal flow is small, it hits the baffle 202, and the elastic deformation of the baffle 202 itself will apply an elastic force to the coal blocks acting on the baffle 202. At this time, the coal blocks have a thrust away from the wheel disc 103, so that the coal blocks move away from the wheel row and enter the discharge port downward under the action of their own gravity.

[0047] When the coal flow is large, the baffle 202 undergoes elastic deformation and contacts the first stopper 201a to prevent the baffle 202 from falling off;

[0048] When sampling is required, the driving motor 104 is started to rotate the sampling port 103a, and the sampling port 103a and the protection component 200 exchange positions. At this time, due to the existence of the protection component 200, the weight of the wheel 103 is changed. When the sampling port 103a rotates, the sampling port 103a is prevented from making unnecessary deflections under the action of inertia.

[0049] Example 2, reference Figure 1 to Figure 7 , which is the second embodiment of the present invention, further provides a belt end sampling machine. The baffle plate 202 is provided with a baffle ring 202a, and the baffle ring 202a is provided with a plurality of baffle rings.

[0050] Preferably, the retaining ring 202a is in an arc shape, and the plurality of retaining rings 202a are centered on the midline of the baffle plate 202, and the height of the retaining ring 202a gradually decreases toward the outside, that is, the closer the retaining ring 202a is to the center of the baffle plate 202, the larger the radius.

[0051] Then, the baffle 202 formed by the multiple baffle rings 202a presents an overall shape with a high middle and low sides. At this time, the coal flow can more easily move on both sides of the box under the action of the baffle 202, preventing the baffle 202 from being worn for a long time;

[0052] Furthermore, by providing a plurality of baffle rings 202a, the coal blocks that were originally in surface contact with the wheel disc 103 now make line contact with the baffle plate 202, thereby further reducing the friction area between the coal blocks and the baffle plate 202 and increasing the service life of the entire sampling device.

[0053] The thickness of the proximal end of the baffle 202 is greater than the thickness of the distal end of the baffle 202 .

[0054] It should be noted that the proximal end refers to a position close to one side of the drive shaft 106, and the distal end is the opposite;

[0055] That is, when the baffle 202 is observed from the side, the thickness of the baffle 202 on the side close to the drive shaft 106 is greater than the thickness on the side away from the drive shaft 106. At this time, when the coal flow is transported by the belt to input the coal blocks into the sampling box 102 and contacts the baffle 202, the thickness of the baffle 202 is different, and an inclined surface is formed between the baffles 202, so that the coal blocks can move toward the discharge port better.

[0056] At the same time, since the thickness of the proximal end of the baffle 202 is greater, the overall mass of the baffle 202 is also increased. That is to say, when the drive motor 104 starts to drive the wheel 103 to rotate, it can better overcome the inertia force of the wheel 103, so that the sampling port 103a can stop at the appropriate position more accurately to sample the coal block.

[0057] The end surface of the sampling disk 103 is provided with a mounting shaft 204, which is movably arranged with a connecting rod 204a, and an outer wall of the mounting shaft 204 is provided with a spring 204b, which is fixedly connected with the connecting rod 204a.

[0058] The connecting rod 204a is rotationally connected to the mounting shaft 204 , and the other end of the connecting rod 204a is rotationally connected to the protective plate 201 . The spring 204b is a torsion spring, one end of which is fixedly connected to the connecting rod 204a and the other end is fixed to the mounting shaft 204 .

[0059] The connecting rod 204a is connected to the movable rod of the protection plate 201. The protection plate 201 is symmetrically provided with two pieces. The end surfaces of the two protection plates 201 are also fixedly provided with second stoppers 201b.

[0060] A receiving plate 203 is movably provided between the protection plate 201 and the baffle plate 202 , and the receiving plate 203 is slidably connected to the protection plate 201 . The receiving plate 203 is slidably connected to the protection plate 201 , and the receiving plate 203 is located between the two second stoppers 201 b .

[0061] Preferably, the receiving plate 203 also has elastic deformation capability, the receiving plate 203 is an arc-shaped receiving plate, and the receiving plate 203 is arranged tangent to the protective plate 201 on one side close to the second stopper 201b, the upper surface of the receiving plate 203 is in contact with the bottom surface of the baffle ring 202a of the baffle 202, the receiving plate 203 and the baffle 202 are both high in the middle and low on both sides, when the baffle 202 is subjected to the force from the coal block, the middle part of the baffle 202 is concave inward, at this time, the receiving plate 203 is used to supplement the elastic force of the baffle 202, so that the baffle 202 has better elastic performance, so as to cope with the situation when the coal flow is large;

[0062] In summary, when sampling is not required and the coal flow is large, the middle part of the baffle 202 is recessed inwards, and at this time, the receiving plate 203 is also recessed inwards to drive the two symmetrically arranged protective plates 201 close to the end of the installation shaft 204 to move toward the side close to the wheel disc 103. At this time, it is necessary to overcome the elastic force of the spring 204b, the elastic force of the receiving plate 203, and the elastic force of the baffle 202 at the same time. Through multiple groups of settings, the device can withstand a sufficiently large coal flow when in use, and the baffles 202 with different thicknesses allow the coal flow to pass through the discharge port more quickly;

[0063] When sampling is required, the baffles 202 of different thicknesses increase the overall mass of the protection device 200, which can better overcome the inertia of the wheel 103, so that the sampling port 103a can stop at the appropriate position more accurately to sample the coal.

[0064] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0065] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0066] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0067] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A belt end sampling machine, characterized in that: include, A sampling assembly (100) comprises a driving member (101), a sampling cover (102) arranged outside the driving member (101), a sampling disk (103) arranged inside the sampling cover (102) and drivingly connected to the driving member (101), and a wheel (103a) opened on the end surface of the sampling disk (103); The protection component (200) comprises a protection plate (201) arranged on the end surface of the sampling disk (103) and a baffle (202) movably arranged on the end surface of the protection plate (201).

2. The belt end sampling machine according to claim 1, characterized in that: The driving member (101) comprises a driving motor (104) and a reducer (105) arranged outside the driving motor (104).

3. The belt end sampling machine according to claim 2, characterized in that: A driving shaft (106) is provided between the driving motor (104) and the reducer (105), and the driving shaft (106) is fixedly connected to the sampling disk (103).

4. The belt end sampling machine according to claim 3, characterized in that: The protection plate (201) is located below the sampling plate (103), and the protection plate (201) is fan-shaped.

5. The belt end sampling machine according to claim 4, characterized in that: The end surface of the protection plate (201) is symmetrically provided with first stoppers (201a); the baffle plate (202) is located between the two first stoppers (201a); and the baffle plate (202) is slidably connected to the protection plate (201).

6. The belt end sampling machine according to claim 5, characterized in that: The baffle plate (202) is provided with a baffle ring (202a), and a plurality of baffle rings (202a) are provided.

7. The belt end sampling machine according to claim 6, characterized in that: The thickness of the proximal end of the baffle (202) is greater than the thickness of the distal end of the baffle (202).

8. The belt end sampling machine according to claim 7, characterized in that: The end surface of the sampling disk (103) is provided with a mounting shaft (204), the mounting shaft (204) is movably arranged with a connecting rod (204a), the outer wall of the mounting shaft (204) is provided with a spring (204b), and the spring (204b) is fixedly connected with the connecting rod (204a).

9. The belt end sampling machine according to claim 8, characterized in that: The connecting rod (204a) is connected to the movable rod of the protective plate (201); two protective plates (201) are symmetrically arranged; and second stoppers (201b) are fixedly arranged on the end surfaces of the two protective plates (201).

10. The belt end sampling machine according to claim 9, characterized in that: A receiving plate (203) is movably arranged between the protection plate (201) and the baffle plate (202); the receiving plate (203) is slidably connected to the protection plate (201); the receiving plate (203) is slidably connected to the protection plate (201); the receiving plate (203) is located between the two second baffles (201b).

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