Novel gearbox and screening equipment
By setting up an oil storage chamber and an oil injection system in the gearbox, the problem of insufficient lubrication of high-position gears in the screening equipment is solved, uniform lubrication of the gears is achieved, and the probability of failure and maintenance costs are reduced.
Patent Information
- Application Number
- CN202423038682.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-12-10
AI Technical Summary
When the gearbox of the existing screening equipment is used in conjunction with the coal preparation equipment, the high gears cannot be lubricated and the low gears are over-lubricated, resulting in a high probability of failure and high maintenance costs.
A new gearbox is designed, in which oil baffles are arranged at intervals at the bottom of the box to form an oil storage cavity. The gears are installed in the oil storage cavity, and oil filling ports and oil filling devices are set at the meshing positions. The oil filling nozzles are connected by pipelines to achieve point-to-point lubrication.
It achieves uniform lubrication of gears, reducing the probability of failure and maintenance costs.
Smart Images
Figure CN223483388U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of screening equipment technology, specifically to a novel gearbox and screening equipment. Background Technology
[0002] Screening equipment, taking a roller screen as an example, consists of many parallel rollers with screen discs mounted on them in an alternating pattern. The rollers rotate via sprockets or gears, and their rotation direction is the same as the material flow direction. The rollers are rotated via a gearbox. Because existing screening equipment is set up at an angle when used with coal preparation equipment, the gears in the lower position in the gearbox are over-lubricated, while the gears in the higher position are not lubricated. This results in a higher probability of failure for the screening equipment and higher maintenance costs. Utility Model Content
[0003] The purpose of this application is to provide a solution to the problem that the gearbox of existing screening equipment cannot achieve uniform lubrication of the gears located therein.
[0004] (I) Technical Solution
[0005] To achieve the above objectives, the first aspect of this utility model provides a novel gearbox, comprising:
[0006] The housing contains multiple meshing gears that are rotatably mounted inside it.
[0007] Multiple oil baffles are spaced apart at the bottom of the housing along the multiple gear arrangement directions to divide the bottom into multiple oil storage chambers, and multiple gears located below are rotatably installed in the corresponding oil storage chambers;
[0008] Multiple oil inlets are provided, with an oil inlet located above the meshing point between every two adjacent gears;
[0009] And an oiling device having multiple oiling nozzles, each of which is connected to each of the oiling ports via a pipeline to inject oil into each engagement point.
[0010] As one of the optional solutions of this technical solution, an oil storage cavity is formed between each two adjacent oil baffles or between the oil baffle and the side wall of the tank.
[0011] As one of the optional solutions of this technical solution, the straight line of the open end of the oil storage cavity coincides with the straight line of the diameter of the gear.
[0012] As one of the optional solutions of this technical solution, both outer walls of the oil baffle are inclined so that each oil storage cavity is an open trapezoidal structure.
[0013] As one of the optional solutions to this technical solution, the width of the open end of the oil storage cavity is greater than the width of the closed end.
[0014] As one of the optional solutions to this technical solution, the included angle between the two outer wall surfaces is an acute angle. As one of the optional solutions to this technical solution, the surface of the outer wall surface is made of a smooth material.
[0015] As one of the optional solutions of this technical solution, multiple oil injection nozzles are evenly arranged on both sides of the oil injection device.
[0016] As one of the optional solutions to this technical solution, the pipeline is a flexible hose.
[0017] To achieve the above objectives, a second aspect of this utility model provides a screening device, comprising: an inclined screen surface, the screen surface being composed of multiple parallel rollers on which screen discs are alternately mounted, the rollers being rotated by a gearbox as described in any of the preceding descriptions.
[0018] (ii) Beneficial effects
[0019] Compared with the prior art, this utility model has the following advantages:
[0020] This utility model provides a novel gearbox and screening equipment. The novel gearbox includes: a housing, in which multiple meshing gears are rotatably mounted; multiple oil baffles, spaced apart along the arrangement direction of the multiple gears, dividing the bottom of the housing into multiple oil storage chambers, with multiple gears rotatably mounted in the corresponding oil storage chambers; multiple oil inlets, each above the meshing point between two adjacent gears; and an oil injection device having multiple oil nozzles, each oil nozzle connected to each oil inlet via a pipeline to inject oil into each meshing point. In summary, when the screening equipment uses the gearbox of this application in conjunction with coal preparation equipment, the lubricating oil located in the multiple oil storage chambers can be used to fully lubricate the multiple gears, thereby effectively reducing the probability of failure. Attached Figure Description
[0021] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.
[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:
[0023] Figure 1This is a cross-sectional view of the novel gearbox shown in this utility model;
[0024] Figure 2 yes Figure 1 Top view.
[0025] In the diagram: 1. Housing; 2. Oil filling device; 3. Oil storage chamber; 4. Oil baffle; 5. Gear; 6. Oil filling port; 7. Oil filling nozzle. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0027] Screening equipment, taking a roller screen as an example, consists of many parallel rollers with screen discs mounted on them in an alternating pattern. The rollers are rotated by a sprocket or gear 5, and their rotation direction is the same as the material flow direction. The rollers are rotated by a gearbox. Because the existing screening equipment is set up at an angle when used with coal preparation equipment, the gear 5 located at the lower position in the gearbox will be over-lubricated, while the gear 5 located at the higher position will not be lubricated. This results in a higher probability of failure of the screening equipment and higher maintenance costs.
[0028] To address the issue in existing technology where, when the screening equipment is tilted, the gear 5 located at the higher position cannot be lubricated, while the gear 5 located at the lower position is over-lubricated, such as... Figure 1-Figure 2 As shown, the first aspect of this application provides a novel gearbox, comprising:
[0029] Housing 1, with multiple meshing gears 5 rotatably mounted inside housing 1, specifically as follows: Figure 1 As shown, multiple gears 5 are arranged sequentially along the length of the housing 1;
[0030] Multiple oil baffles 4 are spaced apart at the bottom of the housing 1 along the arrangement direction of the multiple gears 5, dividing the bottom into multiple oil storage chambers 3. The multiple gears 5 located at the bottom are rotatably mounted in the corresponding oil storage chambers 3. Specifically, an oil storage chamber 3 is formed between each pair of adjacent oil baffles 4 or between the oil baffle 4 and the side wall of the housing 1, so that the multiple gears 5 located at the lower position can all rotate within the oil storage chambers 3. In a specific embodiment, such as Figure 1As shown, both outer walls of the oil baffle 4 have an incline, so that each oil reservoir 3 is an open trapezoidal structure. More specifically, the width of the open end of the oil reservoir 3 is greater than the width of the closed end. The width of the open trapezoidal structure is greater than the diameter of the gear 5, so that the gear 5 can rotate normally in the oil reservoir 3. Preferably, the included angle between the two outer walls is an acute angle, that is, the inner angle of the oil baffle 4 is an obtuse angle. More preferably, the surface of the outer wall is made of a smooth material, so as to avoid the lubricating oil from accumulating on the side wall of the oil reservoir 3, which would affect the lubrication effect.
[0031] Multiple oil filling ports 6, such as Figure 1 As shown, an oil inlet 6 is provided above the meshing point between each pair of adjacent gears 5, so as to ensure that the meshing point of each gear 5 can be lubricated.
[0032] The device includes an oil injection device 2 with multiple oil injection nozzles 7, each of which is connected to each oil injection port 6 via a pipeline to inject oil into each meshing point. Preferably, the pipeline is a flexible hose. The multiple oil injection nozzles 7 are evenly arranged on both sides of the oil injection device 2. In use, the lubricating oil first flows out through the oil injection device 2, then flows through the pipeline to each oil injection port 6, and finally injects oil into each meshing point of the gear 5 through each oil injection port 6. The lubricating oil flowing out from the meshing point of the gear 5 then flows into the oil storage chamber 3 for storage, so as to fully lubricate the gear 5 located at the lower position. In summary, when the screening equipment uses the gearbox of this application in conjunction with the coal preparation equipment, the lubricating oil located in the multiple oil storage chambers 3 can be used to fully lubricate the multiple gears 5, thereby effectively reducing the probability of failure.
[0033] Specifically, such as Figure 1 As shown, gear 5 includes multiple first gears and second gears. Each pair of adjacent first gears and second gears meshes, with multiple first gears located at a lower position and multiple second gears located at a higher position. Multiple first gears are installed one-to-one in the oil storage chamber 3, and the oil inlet 6 is located at the meshing point of the first gear and second gear. During operation, lubricating oil is stored in the oil injection device 2 and connected to each oil inlet 6 via a hose. The oil injection device 2 has multiple oil nozzles 7 to achieve point-to-point individual lubrication of the meshing point of the first gear and second gear. When the oil injection device 2 starts working, the lubricating oil will lubricate the meshing point of the first gear and second gear through the oil inlet 6, while excess lubricating oil will fall into the corresponding oil storage chamber 3. The lubricating oil remaining in the oil storage chamber 3 can provide secondary lubrication for the first gear, providing continuous lubrication. Furthermore, due to the obstruction of the oil baffle 4, the lubricating oil at the higher position will not flow to the lower position, thus ensuring sufficient lubrication of the entire cavity.
[0034] According to one embodiment of the present invention, the straight line of the open end of the oil storage cavity 3 coincides with the straight line of the diameter of the gear 5, thereby improving the lubrication efficiency of the first gear, that is, ensuring that all positions of the first gear can be lubricated when the first gear rotates.
[0035] like Figure 1-Figure 2 As shown, a second aspect of this application provides a screening device, comprising: an inclined screen surface, the screen surface being composed of a plurality of parallel rollers on which screen discs are alternately mounted, the rollers being rotated by a gearbox as described in any of the preceding descriptions.
[0036] The various embodiments in this specification are described in a progressive manner. Several embodiments focus on the differences from other embodiments, and the same or similar parts between the various embodiments can be referred to each other.
[0037] It should be noted that in the specification, claims, and accompanying drawings of this application, 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 specific order or sequence between these entities or operations. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein.
[0038] Furthermore, the terms "comprising," "including," and "having," as well as any 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 process, method, article, or apparatus. For example, a process, method, system, product, or apparatus that comprises a list of steps or units is not necessarily limited to those steps or units expressly listed, but may include other steps or units not expressly listed or inherent to such process, method, product, 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 the element.
[0039] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.
[0040] The above are merely specific embodiments of this application, enabling those skilled in the art to understand or implement this application. Various modifications and variations to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application. Therefore, this application is not limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.
Claims
1. A novel gearbox, characterized in that, include: The housing (1) has multiple meshing gears (5) rotatably mounted inside it; Multiple oil baffles (4) are spaced apart at the bottom of the housing (1) along the arrangement direction of multiple gears (5) to divide the bottom into multiple oil storage chambers (3), and the multiple gears (5) located below are rotatably installed in the corresponding oil storage chambers (3); Multiple oil inlets (6) are provided above the meshing point between each pair of adjacent gears (5); And an oiling device (2) having multiple oiling nozzles (7), each of the oiling nozzles (7) being connected to each of the oiling ports (6) via a pipeline to inject oil into each engagement point.
2. The novel gearbox according to claim 1, characterized in that, An oil storage cavity (3) is formed between each two adjacent oil baffles (4) or between the oil baffles (4) and the side wall of the box (1).
3. The novel gearbox according to claim 2, characterized in that, The straight line of the open end of the oil storage cavity (3) coincides with the straight line of the diameter of the gear (5).
4. The novel gearbox according to claim 1, characterized in that, Both outer walls of the oil baffle (4) are inclined so that each of the oil storage chambers (3) is an open trapezoidal structure.
5. The novel gearbox according to claim 4, characterized in that, The width of the open end of the oil storage cavity (3) is greater than the width of the closed end.
6. The novel gearbox according to claim 4, characterized in that, The included angle between the two outer wall surfaces is an acute angle.
7. The novel gearbox according to claim 4, characterized in that, The surface of the outer wall is made of a smooth material.
8. The novel gearbox according to claim 1, characterized in that, Multiple oil injection nozzles (7) are evenly arranged on both sides of the oil injection device (2).
9. The novel gearbox according to claim 1, characterized in that, The pipeline is a flexible hose.
10. A screening device, characterized in that, include: The screen surface is inclined and consists of multiple parallel rollers on which screen discs are alternately mounted. The rollers are rotated by a gearbox (5) as described in any one of claims 1-9.