Horizontal shaft assembly and crusher

Abstract

The utility model provides a horizontal shaft assembly and a crusher. The horizontal shaft assembly comprises a first end cover, a shell, a second end cover, a shaft penetrating through the first end cover, the shell and the second end cover, a gear arranged at the end, close to the first end cover, of the shaft, and a first sealing assembly arranged between the first end cover and the shaft and connected with the first end cover and the shaft in an abutting mode. The first sealing assembly comprises at least two first sealing parts which abut against each other. The second sealing assembly is arranged between the second end cover and the shaft, abuts against the second end cover and the shaft and comprises at least two second sealing parts which abut against each other. According to the scheme, the speed that lubricating oil loaded in the cavity of the horizontal shaft assembly leaks to the external environment and other parts of the crusher can be reduced, the probability of clamping stagnation faults of the horizontal shaft assembly is reduced, the oil sealing time of the horizontal shaft assembly is prolonged, the shutdown frequency of the cone crusher is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of ore crushing technology, and in particular to a horizontal shaft assembly and a crusher. Background Technology

[0002] In iron ore crushing processes, cone crushers are crucial production equipment. As tools used for crushing ore, the quality of a cone crusher significantly impacts production. During iron ore crushing, the horizontal shaft assembly of a cone crusher is prone to problems such as oil leakage and other issues, leading to frequent maintenance and significantly affecting production efficiency. Utility Model Content

[0003] In view of this, this utility model proposes a horizontal shaft assembly and a crusher, which solves the problems of lubricating oil cross-contamination and leakage that are prone to occur in the horizontal shaft assembly of related cone crusher equipment.

[0004] On one hand, this utility model embodiment provides a horizontal shaft assembly for a crusher, the horizontal shaft assembly comprising:

[0005] The first end cap, the housing, and the second end cap are connected in sequence.

[0006] A shaft passing through the first end cap, the housing, and the second end cap;

[0007] The gear is located at one end of the shaft near the first end cover;

[0008] A first sealing assembly is disposed between the first end cover and the shaft, and abuts against the first end cover and the shaft respectively. The first sealing assembly includes at least two first sealing components that abut against each other.

[0009] A second sealing assembly is disposed between the second end cap and the shaft, and abuts against the second end cap and the shaft respectively. The second sealing assembly includes at least two second sealing components that abut against each other.

[0010] In some embodiments, the first sealing assembly includes two first sealing members that abut against each other; the second sealing assembly includes two second sealing members that abut against each other.

[0011] The first end cap has a first groove, and the second end cap has a second groove;

[0012] The first sealing component is disposed in the first groove and sleeved on the shaft;

[0013] The second sealing component is disposed within the second groove and is sleeved on the shaft.

[0014] In some embodiments, the horizontal shaft assembly further includes:

[0015] Third sealing component;

[0016] The outer side of the housing has a mounting surface for assembly with the lower frame assembly of the crusher. A third groove is provided on the mounting surface, and a third sealing component is engaged in the third groove.

[0017] In some embodiments, the third sealing component is an O-ring, and the cross-sectional length of the O-ring along the first direction is greater than the depth of the third groove along the first direction.

[0018] In some embodiments, the horizontal shaft assembly further includes:

[0019] A first spacer is connected to the shaft and disposed opposite to the first end cover, and at least two first sealing components are fitted onto the first spacer.

[0020] In some embodiments, the horizontal shaft assembly further includes:

[0021] A second spacer is connected to the shaft and disposed opposite to the second end cover, and at least two second sealing components are fitted onto the second spacer.

[0022] In some embodiments, the horizontal shaft assembly further includes:

[0023] Located at the end of the first end cover away from the gear, and abutting against the first bearing on the shaft;

[0024] Located at the end of the second end cap near the gear, and abutting against the second bearing on the shaft.

[0025] In some embodiments, both the first sealing component and the second sealing component are O-rings.

[0026] On the other hand, this utility model embodiment also provides a crusher, which includes a horizontal shaft assembly, the horizontal shaft assembly including:

[0027] The first end cap, the housing, and the second end cap are connected in sequence.

[0028] A shaft passing through the first end cap, the housing, and the second end cap;

[0029] The gear is located at one end of the shaft near the first end cover;

[0030] A first sealing assembly is disposed between the first end cover and the shaft, and abuts against the first end cover and the shaft respectively. The first sealing assembly includes at least two first sealing components that abut against each other.

[0031] A second sealing assembly is disposed between the second end cap and the shaft, and abuts against the second end cap and the shaft respectively. The second sealing assembly includes at least two second sealing components that abut against each other.

[0032] In some embodiments, the first sealing assembly includes two first sealing members that abut against each other; the second sealing assembly includes two second sealing members that abut against each other.

[0033] The first end cap has a first groove, and the second end cap has a second groove;

[0034] The first sealing component is disposed in the first groove and sleeved on the shaft;

[0035] The second sealing component is disposed within the second groove and is sleeved on the shaft.

[0036] In some embodiments, the horizontal shaft assembly of the crusher further includes:

[0037] Third sealing component;

[0038] The outer side of the housing has a mounting surface for assembly with the lower frame assembly of the crusher. A third groove is provided on the mounting surface, and a third sealing component is engaged in the third groove.

[0039] This utility model has at least the following beneficial effects:

[0040] This utility model provides a horizontal shaft assembly and a crusher. The horizontal shaft assembly includes: a first end cover, a housing, and a second end cover connected in sequence; a shaft passing through the first end cover, housing, and second end cover; a gear disposed at one end of the shaft near the first end cover; at least two first sealing components and at least two second sealing components abutting against each other. The first end cover has a first groove, and the second end cover has a second groove. The at least two first sealing components and the at least two second sealing components abutting against each other are disposed within the first groove and the at least two second sealing components abutting against each other are disposed within the second groove. This utility model, by providing multiple sealing components, greatly slows down the leakage of lubricating oil loaded in the horizontal shaft assembly cavity to the external environment and other components of the cone crusher, reduces the probability of jamming failure in the horizontal shaft assembly, extends the oil sealing time of the horizontal shaft assembly, reduces the downtime frequency of the cone crusher, and improves production efficiency. Attached Figure Description

[0041] 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, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other embodiments can be obtained based on these drawings without creative effort.

[0042] Figure 1 A schematic diagram of the structure of a horizontal shaft assembly provided in an embodiment of this utility model;

[0043] Figure 2a A schematic diagram of the structure of a third sealing component of a horizontal shaft assembly provided for an embodiment of this utility model;

[0044] Figure 2b for Figure 2a The diagram shows a cross-sectional view of the third sealing component along the AA direction.

[0045] [Explanation of Labels in the Attached Image]

[0046] 10: First end cap; 11: First groove; 20: Housing; 21: Assembly surface; 22: Third groove; 30: Second end cap; 31: Second groove; 40: Shaft; 50: Gear; 60: First sealing component; 70: Second sealing component; 80: Third sealing component; 90: First spacer; 100: Second spacer; 110: First bearing; 120: Second bearing. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be further described in detail below with reference to specific examples and accompanying drawings.

[0048] It should be noted that all uses of "first" and "second" in the embodiments of this utility model are for the purpose of distinguishing two entities or parameters with the same name but different names. It is clear that "first" and "second" are only for the convenience of expression and should not be construed as limiting the embodiments of this utility model. Subsequent embodiments will not explain this in detail.

[0049] In iron ore crushing processes, cone crushers are crucial production equipment. As tools used for crushing iron ore, the reliability of a cone crusher significantly impacts production. During the iron ore crushing process, the horizontal shaft assembly of a cone crusher is prone to problems such as oil leakage and other issues, leading to frequent maintenance and significantly affecting production efficiency.

[0050] In some examples, the relevant cone crusher includes a lower frame assembly and a horizontal shaft assembly, with a clearance fit between the lower frame assembly and the horizontal shaft.

[0051] The lower frame assembly has an independent circulating lubrication system. Through this lubrication circulation system, lubricating oil flows out from the main lubrication tank under pressure, enters the lower frame assembly through the oil inlet, lubricates the eccentric sleeve, gears and other components of the lower frame assembly, and returns to the main lubrication tank from the lubrication outlet of the lower frame assembly.

[0052] The horizontal shaft assembly has an independent circulating lubrication system that lubricates the bearings and other components of the horizontal shaft assembly. The lubricating oil in the circulating lubrication system of the horizontal shaft assembly flows out from the horizontal shaft lubrication oil tank, enters the horizontal shaft assembly through the oil inlet, and returns to the horizontal shaft lubrication oil tank from the oil outlet of the horizontal shaft assembly.

[0053] The horizontal shaft assembly has oil seals at both ends along the horizontal direction; these are single oil seals. If the oil seal at the end of the horizontal shaft assembly closer to the external environment breaks, the lubricating oil in the assembly will leak into the environment, polluting it. Furthermore, with each leak, the lubrication effect gradually decreases, making the horizontal shaft prone to jamming and other malfunctions. If the oil seal at the end of the horizontal shaft assembly closer to the lower frame assembly breaks, the lubricating oil in the horizontal shaft assembly will leak into the lower frame assembly and return to the main lubrication tank from the lower frame assembly's oil outlet, causing oil cross-contamination and contaminating the lubricating oil in the main lubrication tank, thus affecting lubrication performance.

[0054] Furthermore, since the lower frame assembly and the horizontal shaft are clearance fit, the lubricating oil in the lower frame assembly enters the cavity formed between the lower frame assembly and the horizontal shaft assembly through the inner assembly surface. After the sealant coated on the outer assembly surface ages and breaks down, the lubricating oil of the lower frame assembly that has leaked into the cavity will leak into the external environment through the outer assembly surface, thereby polluting the environment, affecting the lubrication effect, and causing malfunctions such as jamming of the horizontal shaft assembly.

[0055] To prevent malfunctions caused by damaged oil seals on the horizontal shaft, the cone crusher needs to be shut down for maintenance frequently, which greatly affects its production efficiency. Furthermore, since the maintenance environment is not dust-free, performing maintenance on the horizontal shaft assembly in a dusty environment can easily lead to damage to the oil seals of the horizontal shaft assembly, increasing operating costs and the probability of accidents.

[0056] In view of the above, in order to solve at least one of the above technical problems, the present invention provides a horizontal shaft assembly and a crusher. The present invention will now be described in detail with reference to embodiments and accompanying drawings.

[0057] The first aspect of this utility model provides a horizontal shaft assembly that can be used in a crusher, such as a cone crusher, but is not limited thereto, and can also be used in other crushers for crushing metal ores.

[0058] like Figure 1As shown, the horizontal shaft assembly provided in this embodiment of the present invention may include: a first end cover 10, a housing 20, and a second end cover 30 connected in sequence; a shaft 40 passing through the first end cover 10, the housing 20, and the second end cover 30; a gear 50 disposed at one end of the shaft near the first end cover; a first sealing assembly disposed between the first end cover 10 and the shaft 40 and abutting against the first end cover 10 and the shaft 40 respectively, the first sealing assembly including at least two first sealing components 60 abutting against each other; and a second sealing assembly disposed between the second end cover 30 and the shaft 40 and abutting against the second end cover 30 and the shaft 40 respectively, the second sealing assembly including at least two second sealing components 70 abutting against each other.

[0059] This utility model embodiment, by setting multiple first sealing components before the first end cover and the shaft, and setting multiple second sealing components between the second end cover and the shaft, greatly slows down the leakage of lubricating oil loaded in the cavity of the horizontal shaft assembly to the external environment and other components of the cone crusher, reduces the probability of jamming failure of the horizontal shaft assembly, extends the oil sealing time of the horizontal shaft assembly, reduces the downtime frequency of the cone crusher, and improves production efficiency.

[0060] In some embodiments of this utility model, such as Figure 1 As shown, the first sealing assembly may include two mutually abutting first sealing components 60; the second sealing assembly may include two mutually abutting second sealing components 70. The first end cap 10 has a first groove 11, and the second end cap 30 has a second groove 31; the two mutually abutting first sealing components 60 of the first sealing assembly are disposed within the first groove 11 and sleeved on the shaft 40; the two mutually abutting second sealing components 70 of the second sealing assembly are disposed within the second groove 31 and sleeved on the shaft 40.

[0061] Specifically, the material of the first end cap 10 can be metal, such as stainless steel, to improve the overall strength and reliability of the horizontal shaft assembly and reduce the probability of horizontal shaft assembly failure.

[0062] The housing 20 can be made of metal, such as stainless steel, to improve the overall strength and reliability of the horizontal shaft assembly and reduce the probability of horizontal shaft assembly failure.

[0063] The material of the second end cap 30 can be metal, such as stainless steel, to improve the overall strength and reliability of the horizontal shaft assembly.

[0064] The connection between the first end cover 10, the housing 20, and the second end cover 30 can be a detachable connection, such as a detachable connection by bolts, so that the horizontal shaft assembly can be easily maintained and parts replaced.

[0065] The shaft 40 and the housing 20 are connected by a rotatable connection, which is achieved by mounting rotatable components, such as bearings, on the shaft 40.

[0066] The material of gear 50 can be metal, such as stainless steel, to improve the overall strength and reliability of the horizontal shaft assembly and reduce the probability of horizontal shaft assembly failure.

[0067] Gear 50 and shaft can be fixedly connected, such as by welding, to improve the overall strength and reliability of the horizontal shaft assembly and reduce the probability of horizontal shaft assembly failure.

[0068] The materials of the first sealing component 60 and the second sealing component 70 can be non-metallic materials, such as rubber. The first sealing component 60 and the second sealing component 70 can be sealing rings, such as O-rings.

[0069] A cavity is formed between the first end cover 10, the housing 20, the second end cover 30, and the shaft of the horizontal shaft assembly. During operation, the first sealing component 60 near the second end cover 30 and the second sealing structure 70 near the first end cover 10 directly contact the lubricating oil contained within the cavity. The other first and second sealing structures do not contact the lubricating oil until the first sealing component 60 and the second sealing structure 70 near the first end cover 10 wear down due to long-term use. Therefore, by setting multiple sealing components, the rate at which the lubricating oil contained within the horizontal shaft assembly cavity leaks into the external environment and other components of the cone crusher is greatly reduced. This lowers the probability of jamming in the horizontal shaft assembly, extends the oil seal time of the horizontal shaft assembly, reduces the downtime frequency of the cone crusher, and improves production efficiency.

[0070] In some embodiments of this utility model, such as Figure 1 The horizontal shaft assembly shown may include: two first sealing members 60 disposed in the first groove 11 and abutting each other; and two second sealing members 71 disposed in the second groove 31 and abutting each other. This reduces the length of the horizontal shaft assembly and the space occupied by the horizontal shaft assembly.

[0071] In some embodiments of this utility model, such as Figure 1 The horizontal shaft assembly shown may also include a third sealing component 80. The outer side of the housing has a mounting surface 21 for assembly with the lower frame assembly of the crusher, the mounting surface 21 having a third groove 22, in which the third sealing component 80 engages.

[0072] The assembly surface 21 is the assembly surface of the horizontal shaft assembly that is close to the external environment. By engaging the third sealing component 80 in the third groove of the assembly surface 21, the lubricating oil leaking into the cavity formed by the lower frame assembly and the horizontal shaft assembly can be prevented from leaking into the external environment through the assembly surface 21. This avoids the pollution of the external environment and the reduction of the lubrication effect of the lower frame assembly caused by the lubricating oil leaking into the external environment, and reduces the probability of the horizontal shaft assembly jamming.

[0073] In some embodiments of this utility model, reference is made to Figure 1 and Figure 2a , Figure 2b The third sealing component 80 of the horizontal shaft assembly is an O-ring. The cross-sectional length D1 of the O-ring along the first direction X is greater than the depth of the third groove 22 along the first direction X.

[0074] By making the cross-sectional length D1 of the O-ring along the first direction X greater than the depth of the third groove 22 along the first direction X, the sealing effect of the horizontal shaft assembly and the lower frame assembly at the assembly surface can be guaranteed, avoiding the leakage of lubricating oil into the cavity of the lower frame assembly and the horizontal shaft assembly into the external environment, thus preventing pollution of the external environment and reducing the probability of the horizontal shaft assembly jamming.

[0075] In some examples, in order to ensure the sealing effect between the horizontal shaft assembly and the lower frame assembly at the mating surface while facilitating the assembly of the horizontal shaft assembly and the lower frame assembly, the difference between the cross-sectional length D1 of the O-ring along the first direction X and the depth of the third groove 22 along the first direction X can be increased. D satisfies the following relationship: 1mm≤ D≤5mm.

[0076] In some embodiments of this utility model, such as Figure 1 The horizontal shaft assembly shown may further include a first spacer 90 connected to the shaft 40 and disposed opposite to the first end cap 10. At least two first sealing members 60 may be fitted onto the first spacer 90.

[0077] The first spacer 90 can be made of metal, such as stainless steel, to improve the overall strength and reliability of the horizontal shaft assembly.

[0078] The first spacer 90 and the shaft 40 can be detachably connected. For example, the first spacer 90 can be pressed onto the shaft 40 by ensuring that the dimensions of the first spacer 90 and the shaft 40 are an interference fit.

[0079] By fitting the first sealing component 60 onto the first spacer 90, wear on the shaft during long-term use can be prevented, thus avoiding a decrease in the sealing effect. Replacing the wear on the shaft 40 with the wear on the first spacer 90 avoids the need for shaft replacement due to excessive wear.

[0080] In some embodiments of this utility model, such as Figure 1 The horizontal shaft assembly shown may further include a second spacer 100 connected to the shaft 40 and disposed opposite to the second end cap 30. At least two second sealing members 70 may be fitted onto the second spacer 100.

[0081] The material of the second spacer 100 can be metal, such as stainless steel, to improve the overall strength and reliability of the horizontal shaft assembly.

[0082] The second spacer 100 and the shaft 40 can be detachably connected. For example, the second spacer 100 can be pressed onto the shaft 40 by ensuring that the dimensions of the second spacer 100 and the shaft 40 are an interference fit.

[0083] By fitting the second sealing component 70 onto the second spacer 100, wear on the shaft during long-term use can be prevented, thus avoiding a decrease in the sealing effect. Replacing the wear on the shaft 40 with the wear on the second spacer 100 avoids the need for shaft replacement due to excessive wear.

[0084] In some embodiments of this utility model, such as Figure 1 The horizontal shaft assembly shown may further include: a first bearing 110 located at the end of the first end cap 10 away from the gear 50 and abutting against the shaft 40; and a second bearing 120 located at the end of the second end cap 30 near the gear 50 and abutting against the shaft 40.

[0085] A rotatable connection between the shaft 40 and the housing 20 is achieved by setting a first bearing 110 and a second bearing 120 on the shaft 40.

[0086] Based on the same concept, according to another aspect of the present invention, an embodiment of the present invention also provides a crusher, which includes a horizontal shaft assembly, the horizontal shaft assembly including:

[0087] The first end cap, the housing, and the second end cap are connected in sequence.

[0088] A shaft passing through the first end cap, the housing, and the second end cap;

[0089] The gear is located at one end of the shaft near the first end cover;

[0090] A first sealing assembly is disposed between the first end cover and the shaft, and abuts against the first end cover and the shaft respectively. The first sealing assembly includes at least two first sealing components that abut against each other.

[0091] A second sealing assembly is disposed between the second end cap and the shaft, and abuts against the second end cap and the shaft respectively. The second sealing assembly includes at least two second sealing components that abut against each other.

[0092] The crusher of this utility model embodiment, by setting multiple sealing components in the horizontal shaft assembly of the crusher, slows down the leakage of lubricating oil loaded in the cavity of the horizontal shaft assembly into the external environment and the lower frame assembly of the crusher, avoids oil cross-contamination between the horizontal shaft assembly and the lower frame assembly, reduces the probability of jamming failure of the horizontal shaft assembly, extends the oil sealing time of the horizontal shaft assembly, reduces the downtime frequency of the cone crusher, and improves production efficiency.

[0093] In some embodiments of this utility model, the first sealing assembly includes two first sealing components that abut against each other; the second sealing assembly includes two second sealing components that abut against each other.

[0094] The first end cap has a first groove, and the second end cap has a second groove;

[0095] The first sealing component is disposed in the first groove and sleeved on the shaft;

[0096] The second sealing component is disposed within the second groove and is sleeved on the shaft.

[0097] In some embodiments of this utility model, the horizontal shaft assembly of the crusher may further include:

[0098] Third sealing component;

[0099] The outer side of the housing has a mounting surface for assembly with the lower frame assembly of the crusher. A third groove is provided on the mounting surface, and a third sealing component is engaged in the third groove.

[0100] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0101] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A horizontal shaft assembly, characterized in that, Used in crushers, including: The first end cap, the housing, and the second end cap are connected in sequence. A shaft passing through the first end cap, the housing, and the second end cap; A gear is disposed at one end of the shaft near the first end cover; A first sealing assembly is disposed between the first end cap and the shaft, and abuts against the first end cap and the shaft respectively. The first sealing assembly includes at least two first sealing components that abut against each other. A second sealing assembly is disposed between the second end cap and the shaft, and abuts against the second end cap and the shaft respectively. The second sealing assembly includes at least two second sealing components that abut against each other.

2. The horizontal shaft assembly according to claim 1, characterized in that, The first sealing assembly includes two first sealing components that abut against each other; the second sealing assembly includes two second sealing components that abut against each other. The first end cap is provided with a first groove, and the second end cap is provided with a second groove; The first sealing component is disposed within the first groove and is sleeved on the shaft; The second sealing component is disposed within the second groove and is sleeved on the shaft.

3. The horizontal shaft assembly according to claim 1, characterized in that, Also includes: Third sealing component; The outer side of the housing has an assembly surface for assembly with the lower frame assembly of the crusher, and a third groove is provided on the assembly surface, and the third sealing component is engaged in the third groove.

4. The horizontal shaft assembly according to claim 3, characterized in that, The third sealing component is an O-ring, and the cross-sectional length of the O-ring along the first direction is greater than the depth of the third groove along the first direction.

5. The horizontal shaft assembly according to claim 1, characterized in that, Also includes: A first spacer is connected to the shaft and disposed opposite to the first end cap, and the at least two first sealing components are all sleeved on the first spacer.

6. The horizontal shaft assembly according to claim 5, characterized in that, Also includes: A second spacer is connected to the shaft and disposed opposite to the second end cap, and the at least two second sealing components are all sleeved on the second spacer.

7. The horizontal shaft assembly according to claim 1, characterized in that, Also includes: A first bearing located at the end of the first end cap away from the gear and abutting against the shaft; The second end cap is located at one end near the gear and abuts against the shaft.

8. The horizontal shaft assembly according to claim 1, characterized in that, Both the first sealing component and the second sealing component are O-rings.

9. A crusher, characterized in that, Includes a horizontal shaft assembly, the horizontal shaft assembly comprising: The first end cap, the housing, and the second end cap are connected in sequence. A shaft passing through the first end cap, the housing, and the second end cap; A gear is disposed at one end of the shaft near the first end cover; A first sealing assembly is disposed between the first end cap and the shaft, and abuts against the first end cap and the shaft respectively. The first sealing assembly includes at least two first sealing components that abut against each other. A second sealing assembly is disposed between the second end cap and the shaft, and abuts against the second end cap and the shaft respectively. The second sealing assembly includes at least two second sealing components that abut against each other.

10. The crusher according to claim 9, characterized in that, The first sealing assembly includes two first sealing components that abut against each other; the second sealing assembly includes two second sealing components that abut against each other. The first end cap is provided with a first groove, and the second end cap is provided with a second groove; The first sealing component is disposed within the first groove and is sleeved on the shaft; The second sealing component is disposed within the second groove and is sleeved on the shaft.

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