Crushing transmission structure and coal crushing device

Abstract

The utility model relates to the field of coal's crushing tool, concretely is crushing transmission structure and coal crushing device. The utility model crushing transmission structure, include: first crushing main body, this first crushing main body's upper portion has feed inlet and first axle seat, second crushing main body, second crushing main body with first crushing main body fixed connection, driving axle core, driving axle core has first annular crushing surface and second annular crushing surface, driving axle core's upper portion end portion with first axle seat swing joint, driving axle core has fixed connection's transmission gear disc, blanking main body, blanking main body has second axle seat, first transmission rod, first transmission rod in blanking main body's end portion has fixed connection's driving gear, first transmission rod's other end has fixed connection's universal joint, motor assembly, motor assembly's power output shaft with universal joint fixed connection.

Description

Technical Field

[0001] This utility model relates to the field of coal crushing tools, specifically to crushing transmission structures and coal crushing devices. Background Technology

[0002] Many factors influence coal quality during coal production. Coal is rich in various organic and inorganic substances, and site surveys are necessary before actual mining. Coal quality testing is a crucial step in detecting coal quality, providing a reference for mining operations and effectively ensuring coal production quality, thus enhancing the company's competitive advantage in the market. To promote the better development of the coal production industry, we will briefly analyze the role of coal quality testing in coal production quality.

[0003] Coal testing is performed using instruments to detect the content of various elements in coal. The main testing items include: total sulfur, calorific value, moisture, ash, volatile matter, fixed carbon, carbon, hydrogen, ash fusion properties, carbon content in slag, coking coal, petroleum coke, and briquettes.

[0004] Coal samples taken for quality analysis are usually quite large, ranging from tens or hundreds of kilograms to several tons or even tens of tons, while the actual test samples required are only a few grams, tens of grams, or hundreds of grams. Coal is a mixture with a highly heterogeneous chemical and particle size distribution. To reduce a large amount of coal sample to such a small quantity while ensuring that its chemical and physical properties are representative of the original coal sample, it is necessary to process the coal sample according to a specific procedure. Otherwise, the resulting analytical test sample will lose its representativeness, and the test results will not accurately reflect the quality of the collected coal sample.

[0005] Sample crushing is a sample preparation process that reduces the particle size of a sample by crushing and grinding. Crushing is best done using mechanical equipment, but manual methods are permitted to crush large samples to the maximum feed particle size in the first crushing stage. However, crushing is time-consuming and physically demanding.

[0006] Currently, whether it is coal crushing equipment or other product crushing equipment, there is a problem of vibration during the crushing process. These vibrations and shaking can cause the drive shaft connected to the crushing equipment to bend and deform, and the vibrations that occur during the crushing process can also cause the motor to loosen. Utility Model Content

[0007] The purpose of this invention is to solve the problem that vibration can affect the transmission of existing coal crushing equipment.

[0008] To solve the above technical problems, the present invention provides a crushing transmission structure, comprising:

[0009] A first crushing body, the first crushing body having a feed inlet and a first shaft seat at its top;

[0010] The second crushing body is located vertically below the first crushing body, and the second crushing body is fixedly connected to the first crushing body;

[0011] A drive shaft is movably mounted within the first and second crushing bodies; the drive shaft has a first annular crushing surface and a second annular crushing surface, and its upper end is movably connected to the first shaft seat; the drive shaft has a fixedly connected transmission gear disc.

[0012] The feeding body is located vertically below the second crushing body; the feeding body is fixedly connected to the second crushing body; the feeding body has a second shaft seat, the lower part of the drive shaft is at least partially located inside the feeding body, and the lower end of the drive shaft is movably connected to the second shaft seat;

[0013] A first transmission rod, one end of which is at least partially located within the unloading body; the end of the first transmission rod located within the unloading body has a fixedly connected drive gear, and the other end of the first transmission rod has a fixedly connected universal joint;

[0014] A motor assembly, wherein the power output shaft of the motor assembly is fixedly connected to the universal joint.

[0015] In a preferred embodiment of the crushing transmission structure of this utility model, the inner surface of the first crushing body has a first crushing tooth fixedly connected to it; the surface of the second crushing body has a second crushing tooth fixedly connected to it.

[0016] The first and second annular crushing surfaces of the drive shaft core each have a fixedly connected third crushing tooth.

[0017] As a preferred embodiment of the crushing transmission structure of this utility model, the feeding body has a fixedly connected baffle cover, which is located at least above the transmission gear plate and the first transmission rod.

[0018] As a preferred embodiment of the crushing transmission structure of this utility model, it includes a second transmission rod, which has a fixedly connected eccentric wheel; one end of the second transmission rod is connected to the power output shaft of the motor assembly, and the other end of the second transmission rod is connected to the first transmission rod through the universal joint;

[0019] It includes a third transmission rod, one end of which has a fixedly connected bushing, the bushing being movably connected to the eccentric wheel;

[0020] Includes a screen, and the other end of the third transmission rod is movably connected to the screen.

[0021] In a preferred embodiment of the crushing transmission structure of this utility model, one end of the second transmission rod is connected to a transmission gear that is fixedly connected, the power output shaft of the motor assembly is connected to a transmission sleeve that is fixedly connected, the transmission gear is installed inside the transmission sleeve, and the transmission gear is slidably connected to the transmission sleeve.

[0022] As a preferred embodiment of the crushing transmission structure of this utility model, it includes a receiving hood, which is located vertically below the feeding body; the upper part of the receiving hood is fixedly connected to the feeding body; the lower part of the receiving hood has a discharge port; the discharge port is located vertically below the receiving hood.

[0023] As a preferred embodiment of the crushing transmission structure of this utility model, it includes a receiving box, which has a first receiving chamber and a second receiving chamber;

[0024] The screen is at an inclined angle, with one end of the screen connected to the third transmission rod being higher than the other end;

[0025] The second receiving chamber is located vertically below the screen; the lower end of the screen is located vertically above the second receiving chamber.

[0026] This utility model coal crushing device includes:

[0027] The main frame, including the crushing transmission structure described in any one of the above, is installed on the main frame.

[0028] As a preferred embodiment of the coal crushing device of this utility model, the main frame includes at least a first fixed beam and a second fixed beam, and the first crushing body and the first shaft seat of the crushing transmission structure are fixedly connected to the first fixed beam.

[0029] The material feeding body and the second shaft seat of the crushing transmission structure are fixedly connected to the second fixed beam;

[0030] The motor assembly is fixedly installed on the main frame.

[0031] In a preferred embodiment of the coal crushing device of this utility model, a third shaft seat is fixedly connected to the middle of the screen of the crushing transmission structure, and the third shaft seat is movably connected to the main frame. Beneficial effects

[0032] This utility model solves the above-mentioned existing problems and other existing problems not mentioned above, and brings at least the following innovative advantages:

[0033] This utility model relates to a crushing transmission structure and a coal crushing device. Through the cooperation of the first crushing body, the second crushing body, and the drive shaft, the coal can be crushed more evenly. The first crushing is achieved through the cooperation of the first annular crushing surface and the first crushing body, and the second crushing is achieved through the cooperation of the second annular crushing surface and the second crushing body. The entire process achieves multi-stage crushing in one step. Furthermore, because a universal joint is provided between the motor and the drive shaft, the probability of the first transmission rod and / or the motor shaft bending can be reduced even if the equipment vibrates and shakes during the crushing process.

[0034] This utility model relates to a crushing transmission structure and a coal crushing device. By using an eccentric wheel set in the second transmission rod, the eccentric wheel can drive the third transmission rod to pull the screen to shake. When there is crushed coal on the screen, it can better separate fine coal from large coal particles.

[0035] This utility model of a crushing transmission structure and coal crushing device, through the transmission gear set in the second transmission rod and the transmission gear sleeve that can be slidably connected to the transmission gear, enables the second transmission rod to extend and slide within the transmission gear sleeve when the equipment vibrates or shakes severely, while the motor assembly can rotate through the second and first transmission rods, thus avoiding the pulling of vibration or shaking on the motor assembly.

[0036] This utility model relates to a crushing transmission structure and a coal crushing device. By setting the screen at an inclined angle, coal powder that can pass through the screen can fall directly into the first receiving chamber, while larger coal particles fall into the second receiving chamber due to shaking and the inclined angle of the screen. Attached Figure Description

[0037] Figure 1 This is a three-dimensional rendering of the present invention;

[0038] Figure 2 This is a top view of the present invention.

[0039] Figure 3 for Figure 2 Cross-sectional view of position AA in the middle;

[0040] Figure 4 This is an exploded view of the present invention;

[0041] Figure 5 for Figure 3 A magnified view of a portion of region A in the middle;

[0042] Figure 6 This is a three-dimensional enlarged view of the first crushing body of this utility model;

[0043] Figure 7 This is a three-dimensional enlarged view of the drive shaft of this utility model;

[0044] Figure 8 This is an enlarged view of the second crushing body of this utility model;

[0045] Figure 9 This is a three-dimensional enlarged view of the material feeding body of this utility model;

[0046] Figure 10 This is a three-dimensional enlarged view of the sieve of this utility model;

[0047] Figure 11 This is a perspective view of another embodiment of the present utility model.

[0048] In the diagram: 1. First crushing body, 2. Feed inlet, 3. First shaft seat, 4. Second crushing body, 5. Drive shaft core, 6. First annular crushing surface, 7. Second annular crushing surface, 8. Transmission gear plate, 9. Discharge body, 10. Second shaft seat, 11. First transmission rod, 12. Drive gear, 13. Universal joint, 14. Motor assembly, 15. First crushing tooth, 16. Second crushing tooth, 17. Third crushing tooth, 18. First connecting plate, 19. Second connecting plate 20. Third connecting plate, 21. Baffle cover, 22. Shaft hole, 23. Second transmission rod, 24. Eccentric wheel, 25. Third transmission rod, 26. Bushing, 27. Screen, 28. Transmission gear, 29. Transmission gear sleeve, 30. Receiving cover, 31. Discharge port, 32. Receiving box, 33. First receiving chamber, 34. Second receiving chamber, 35. Main frame, 36. First fixed beam, 37. Second fixed beam, 38. Third bearing, 39. Bearing. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings.

[0050] In the accompanying drawings, the same reference numerals represent the same parts. It should be noted that the described embodiments are only some, not all, of the embodiments disclosed herein.

[0051] Based on the embodiments described in this disclosure, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this disclosure. Example 1

[0052] like Figures 1 to 10 As shown, the crushing transmission structure of this utility model includes: a first crushing body 1, which has a feed inlet 2 and a first shaft seat 3 on its upper part; Figure 1 , Figure 3 and Figure 6 The first crushing body 1 is shown to have a funnel-shaped structure that is larger at the top and smaller at the bottom.

[0053] The second crushing body 4 is located vertically below the first crushing body 1, and the second crushing body 4 is fixedly connected to the first crushing body 1; for example Figure 1 , Figure 3 and Figure 8 As shown, the second crushing body 4 is an annular tubular structure, and as... Figure 3 Therefore, the first crushing body 1 and the second crushing body 4 are connected to each other;

[0054] The active shaft core 5 is movably installed within the first crushing body 1 and the second crushing body 4; the active shaft core 5 has a first annular crushing surface 6 and a second annular crushing surface 7. Figure 3 It is shown that the first annular crushing surface 6 and the first crushing body 1 are at the same horizontal height, and the second annular crushing surface 7 and the second crushing body 4 are at the same horizontal height; Figure 3 and Figure 7 This demonstrates that the first annular crushing surface 6 is at an inclined angle, and the second annular crushing surface 7 is at a vertical angle; as shown... Figure 3 As shown, the gap between the second annular crushing surface 7 and the second crushing body 4 is smaller than the gap between the first annular crushing surface 6 and the first crushing body 1; the upper end of the drive shaft core 5 is movably connected to the first shaft seat 3; the drive shaft core 5 has a fixedly connected transmission gear disc 8. Figure 3 This shows that the transmission gear 8 is at a horizontal angle;

[0055] The feeding body 9 is located vertically below the second crushing body 4; Figure 9 The feeding body 9 is also a trumpet-shaped structure. The feeding body 9 is fixedly connected to the second crushing body 4. The feeding body 9 has a second shaft seat 10. The lower part of the active shaft core 5 is at least partially inside the feeding body 9, and the lower end of the active shaft core 5 is movably connected to the second shaft seat 10.

[0056] First transmission rod 11 Figure 5 The first transmission rod 11 is shown to be at a horizontal angle; one end of the first transmission rod 11 is at least partially inside the unloading body 9; the end of the first transmission rod 11 inside the unloading body 9 has a fixedly connected drive gear 12, and the other end of the first transmission rod 11 has a fixedly connected universal joint 13.

[0057] Motor assembly 14, the power output shaft of which is fixedly connected to the universal joint 13.

[0058] This utility model's crushing transmission structure achieves more uniform coal crushing through the cooperation of the first crushing body 1, the second crushing body 4, and the drive shaft core 5. The first round of coal crushing is achieved through the cooperation of the first annular crushing surface 6 and the first crushing body 1, followed by secondary crushing through the cooperation of the second annular crushing surface 7 and the second crushing body 4. The entire structure achieves multi-stage crushing in one step. Furthermore, because a universal joint 13 is provided between the motor and the drive shaft core 5, the probability of bending of the first transmission rod 11 and / or the motor shaft can be reduced even if vibration and shaking occur during the crushing process.

[0059] like Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, the inner surface of the first crushing body 1 has a first crushing tooth 15 fixedly connected; Figure 8 The surface of the second crushing body 4 is shown to have a fixedly connected second crushing tooth 16; Figure 7 The first annular crushing surface 6 and the second annular crushing surface 7 of the active shaft core 5 are shown to each have a fixedly connected third crushing tooth 17. Furthermore, Figure 6 The image shows a first connecting disc 18 fixedly connected to the lower part of the first crushing body 1. Figure 8 The second crushing body 4 is shown to have a second connecting disc 19 fixedly connected to its upper and lower ends. Figure 1 The first connecting disc 18 and the second connecting disc 19 above the second crushing body 4 are shown to be fixedly connected by bolts; Figure 9 The third connecting plate 20, which is fixedly connected to the upper part of the feeding body 9, is shown. Figure 1 and Figure 5 The second connecting disc 19 and the third connecting disc 20 below the second crushing body 4 are shown to be connected by bolts.

[0060] like Figure 9 and Figure 5 As shown, the feeding body 9 has a fixedly connected baffle 21 inside, which is located at least above the transmission gear plate and the first transmission rod 11. Figure 3 and Figure 5 The partition cover 21 is shown to shield the top of the transmission gear, the first transmission rod 11 and the drive gear 12. Figure 5 and Figure 9 It is also shown that the side of the feeding body 9 has a shaft hole 22, through which the first transmission rod 11 passes and is located inside the feeding body 9; the feeding body 9 also has a bearing 39, and the first transmission rod 11 is mounted on the bearing 39.

[0061] like Figure 5 As shown, it includes a second transmission rod 23, which has a fixedly connected eccentric wheel 24; one end of the second transmission rod 23 is connected to the power output shaft of the motor assembly 14, and the other end of the second transmission rod 23 is connected to the first transmission rod 11 through the universal joint 13;

[0062] It includes a third transmission rod 25, one end of which has a fixedly connected bushing 26, the bushing 26 being movably connected to the eccentric wheel 24;

[0063] Includes a screen 27, and the other end of the third transmission rod 25 is movably connected to the screen 27.

[0064] The present invention's crushing transmission structure, through the eccentric wheel 24 set in the second transmission rod 23, enables the eccentric wheel 24 to drive the third transmission rod 25 to pull the screen 27 to shake. When there is crushed coal on the screen 27, it can better separate fine coal and large coal particles.

[0065] like Figure 5 As shown, one end of the second transmission rod 23 is fixedly connected to a transmission gear 28, and the power output shaft of the motor assembly 14 is fixedly connected to a transmission sleeve 29. The transmission gear 28 is installed inside the transmission sleeve 29 and is slidably connected to the transmission sleeve 29. This utility model's crushing transmission structure, through the transmission gear on the second transmission rod 23 and the transmission sleeve 29 that can slidably connect to the transmission gear 28, enables the second transmission rod 23 to extend and slide within the transmission sleeve 29 when the equipment vibrates or shakes severely, even when the motor assembly 14 can rotate via the second transmission rod 23 and the first transmission rod 11. This avoids the pulling of vibration or shaking on the motor assembly.

[0066] See Figure 1 , Figure 3 and Figure 4 It includes a receiving cover 30, which is located vertically below the unloading body 9; the upper part of the receiving cover 30 is fixedly connected to the unloading body 9; the lower part of the receiving cover 30 has a discharge port 31; the discharge port 31 is located vertically below the receiving cover 30.

[0067] like Figure 3 As shown, it includes a receiving box 32, which has a first receiving cavity 33 and a second receiving cavity 34;

[0068] The screen 27 is at an inclined angle, with one end of the screen 27 connected to the third transmission rod 25 being higher than the other end;

[0069] The second receiving chamber 34 is located vertically below the screen 27; the lower end of the screen 27 is located vertically above the second receiving chamber 34. This utility model's crushing transmission structure, by setting the screen 27 at an inclined angle, allows coal powder that can pass through the screen to fall directly into the first receiving chamber 33, while larger coal particles fall into the second receiving chamber 34 due to shaking and the inclined angle of the screen. Example 2

[0070] like Figure 11 As shown, the coal crushing device of this utility model includes a main frame 35 and a crushing transmission structure as described in Embodiment 1. Specifically, the crushing transmission structure described in Embodiment 1 is installed on the main frame 35.

[0071] like Figure 11 As shown, the main frame 35 includes at least a first fixed beam 36 and a second fixed beam 37, and the first crushing body 1 and the first bearing 3 of the crushing transmission structure are fixedly connected to the first fixed beam 36.

[0072] The material feeding body 9 and the second shaft seat 10 of the crushing transmission structure are fixedly connected to the second fixed beam 37.

[0073] The motor assembly 14 is fixedly installed on the main frame 35.

[0074] Figure 11 The screen 27 of the crushing transmission structure is shown to have a fixedly connected third shaft seat 38 in the middle, which is movably connected to the main frame 35.

[0075] The terms "first," "second," and similar words used in the specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "an," "a," or "the" do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" mean that the elements or objects preceding "comprising" cover the elements or objects listed after "comprising" or "including" and their equivalents, but do not exclude other elements or objects. "Above," "below," "left," "right," etc., are only used to indicate relative positional relationships, and these relative positional relationships may also change accordingly when the absolute position of the described object changes.

[0076] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. The scope of protection of the present utility model is defined by the appended claims. For those skilled in the art, other embodiments can be obtained based on the accompanying drawings without creative effort, and any modifications based on the claims of the present utility model are within the scope of protection of the present utility model.

Claims

1. A crushing transmission structure, characterized in that, include: A first crushing body, the first crushing body having a feed inlet and a first shaft seat at its top; The second crushing body is located vertically below the first crushing body, and the second crushing body is fixedly connected to the first crushing body; A drive shaft is movably mounted within the first and second crushing bodies; the drive shaft has a first annular crushing surface and a second annular crushing surface, and its upper end is movably connected to the first shaft seat; the drive shaft has a fixedly connected transmission gear disc. The feeding body is located vertically below the second crushing body; the feeding body is fixedly connected to the second crushing body; the feeding body has a second shaft seat, the lower part of the drive shaft is at least partially located inside the feeding body, and the lower end of the drive shaft is movably connected to the second shaft seat; A first transmission rod, one end of which is at least partially located within the feeding body; The end of the first transmission rod located inside the material feeding body has a fixedly connected drive gear, and the other end of the first transmission rod has a fixedly connected universal joint. A motor assembly, wherein the power output shaft of the motor assembly is fixedly connected to the universal joint.

2. The crushing transmission structure according to claim 1, characterized in that, The inner surface of the first pulverizing body has a first pulverizing tooth fixedly connected; the surface of the second pulverizing body has a second pulverizing tooth fixedly connected. The first and second annular crushing surfaces of the drive shaft core each have a fixedly connected third crushing tooth.

3. The crushing transmission structure according to claim 1, characterized in that, The feeding body has a fixedly connected baffle cover, which is located at least above the transmission gear plate and the first transmission rod.

4. The crushing transmission structure according to claim 1, characterized in that, It includes a second transmission rod having a fixedly connected eccentric wheel; one end of the second transmission rod is connected to the power output shaft of the motor assembly, and the other end of the second transmission rod is connected to the first transmission rod via the universal joint; It includes a third transmission rod, one end of which has a fixedly connected bushing, the bushing being movably connected to the eccentric wheel; Includes a screen, and the other end of the third transmission rod is movably connected to the screen.

5. The crushing transmission structure according to claim 4, characterized in that, The second transmission rod has a fixedly connected transmission gear at one end, and the power output shaft of the motor assembly has a fixedly connected transmission sleeve. The transmission gear is installed inside the transmission sleeve, and the transmission gear is slidably connected to the transmission sleeve.

6. The crushing transmission structure according to claim 4, characterized in that, The device includes a receiving cover, which is located vertically below the unloading body; the upper part of the receiving cover is fixedly connected to the unloading body; the lower part of the receiving cover has a discharge port; the discharge port is located vertically below the receiving cover.

7. The crushing transmission structure according to claim 6, characterized in that, Includes a receiving box, the receiving box having a first receiving chamber and a second receiving chamber; The screen is at an inclined angle, with one end of the screen connected to the third transmission rod being higher than the other end; The second receiving chamber is located vertically below the screen; the lower end of the screen is located vertically above the second receiving chamber.

8. A coal crushing device, characterized in that, include: The main frame, wherein the crushing transmission structure according to any one of claims 1 to 7 is installed on the main frame.

9. The coal crushing device according to claim 8, characterized in that, The main frame includes at least a first fixed beam and a second fixed beam, and the first crushing body and the first shaft seat of the crushing transmission structure are fixedly connected to the first fixed beam. The material feeding body and the second shaft seat of the crushing transmission structure are fixedly connected to the second fixed beam; The motor assembly is fixedly installed on the main frame.

10. The coal crushing device according to claim 9, characterized in that, The screen of the crushing transmission structure is provided with a fixedly connected third shaft seat in the middle, and the third shaft seat is movably connected to the main frame.

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