Hydraulic cylinder guard plate device of gyratory crusher

Abstract

According to the hydraulic cylinder protection plate device of the gyratory crusher, the hydraulic cylinder lining plate is matched with the ore baffle to protect the hydraulic cylinder body and the bolt for fastening the flange, impact abrasion of crushed materials to the flange at the lower end of the hydraulic cylinder in the falling process is avoided, the safety of the hydraulic cylinder is protected, and the service life of the hydraulic cylinder is prolonged. Therefore, the safety and stability of the whole operation of the gyratory crusher are ensured, meanwhile, the deformation of the bolt threads under the impact of ores is avoided, the replacement and disassembly of the flange at the lower end of the hydraulic cylinder are facilitated, the maintenance time is shortened, and the productivity and the production efficiency of the gyratory crusher are ensured.

Description

Technical Field

[0001] This invention belongs to the field of protective devices, and specifically relates to a protective plate device for the hydraulic cylinder of a gyratory crusher. Background Technology

[0002] Gyratory crushers are primary crushers widely used in mining, metallurgy, construction, and chemical industries, primarily for grinding ores with a hardness of medium to low. Their working principle involves the interaction of a gyratory moving cone and a fixed cone within the machine body to repeatedly grind, impact, and shear the material, gradually breaking it down into smaller particles. They offer advantages such as high crushing efficiency, low power consumption, and stable operation.

[0003] In existing gyratory crusher hydraulic cylinders, the crushed material often impacts and wears the lower flange of the cylinder during its descent. Prolonged operation can damage the cylinder and affect the overall safety and stability of the crusher. Furthermore, the bolt heads used to fasten the flange are positioned at the top, and the ore moving along the crushing path can easily impact these bolt heads, causing thread deformation. This makes disassembling the hydraulic cylinder flange difficult, resulting in excessively long maintenance times and impacting production capacity and efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a hydraulic cylinder guard plate device for a gyratory crusher, so as to solve the problem that the lower flange of the hydraulic cylinder is easily subjected to impact wear and the bolts are easily deformed during the operation of the gyratory crusher, which leads to low production efficiency.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A hydraulic cylinder guard plate device for a gyratory crusher includes a gyratory crushing hydraulic cylinder, wherein a hydraulic cylinder liner is fitted on the outer side of the lower flange of the gyratory crushing hydraulic cylinder.

[0007] The hydraulic cylinder liner has multiple lifting lugs of equal number arranged circumferentially on the upper and lower parts of its inner side, and the positions of the lifting lugs on the upper and lower parts correspond one-to-one with the flange holes of the lower flange; each lifting lug has a screw hole, and each lifting lug is screwed to the corresponding flange hole through its own screw hole.

[0008] An annular baffle plate is provided in the annular space between the upper end of the hydraulic cylinder liner and the gyratory crushing hydraulic cylinder. The baffle plate is mounted on the end face of multiple lifting lugs located on the inner side of the hydraulic cylinder liner.

[0009] This utility model also has the following features:

[0010] Furthermore, the curvature of the inner wall of the hydraulic cylinder liner matches the curvature of the outer wall of the lower flange.

[0011] Furthermore, the hydraulic cylinder liner is formed by fixing and assembling multiple curved panels.

[0012] Furthermore, the curved panel sidewall is provided with screw holes, and two adjacent curved panels are screwed together through their own screw holes.

[0013] Furthermore, the hydraulic cylinder liner and all lifting lugs are integrally formed.

[0014] Furthermore, the hydraulic cylinder liner is a high-manganese steel liner.

[0015] Compared with the prior art, the present invention has the following technical effects:

[0016] (I) The hydraulic cylinder guard plate device of this utility model uses a combination of hydraulic cylinder liner and ore baffle to protect the hydraulic cylinder body and the bolts used to fasten the flange. This avoids the impact and wear of the crushed material on the lower flange of the hydraulic cylinder during the falling process, protects the safety of the hydraulic cylinder, and thus ensures the safe and stable operation of the gyratory crusher. At the same time, it avoids the deformation of the bolt threads of the lower flange under the impact of ore, facilitates the replacement and disassembly of the lower flange of the hydraulic cylinder, shortens the maintenance time, and ensures the capacity and production efficiency of the gyratory crusher.

[0017] (II) The hydraulic cylinder liner device for the gyratory crusher of this utility model utilizes high-manganese steel hydraulic cylinder liners, ensuring overall wear resistance, greatly extending the service life of the hydraulic cylinder liners, and reducing labor intensity. Simultaneously, the inner curved surface arc of the hydraulic cylinder liner is set to match the shape of the hydraulic cylinder flange, allowing the hydraulic cylinder liners to be fixedly connected to form a circular whole. This facilitates the hydraulic cylinder liner being firmly secured to the flange, effectively providing protection. The overall structure is convenient and easy to implement, suitable for large-scale industrial use and promotion. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the hydraulic cylinder guard plate device for a gyratory crusher according to this utility model.

[0019] The meanings of the labels in the diagram are as follows: 1. Gyratory crusher hydraulic cylinder; 2. Lower flange; 3. Hydraulic cylinder liner; 4. Lifting lug; 5. Ore retaining plate; 6. Curved plate. Detailed Implementation

[0020] It should be noted that, unless otherwise specified, all components in this utility model are known components in the prior art. For example, the gyratory crusher is a commonly known gyratory crusher.

[0021] The following are specific embodiments of the present invention. It should be noted that the present invention is not limited to the following specific embodiments. All equivalent modifications made based on the technical solutions of this application fall within the protection scope of the present invention.

[0022] like Figure 1 As shown, a hydraulic cylinder guard plate device for a gyratory crusher includes a gyratory crushing hydraulic cylinder 1, and a hydraulic cylinder liner 3 is sleeved on the outer side of the lower flange 2 of the gyratory crushing hydraulic cylinder 1.

[0023] Multiple lifting lugs 4 are provided circumferentially on the upper and lower parts of the inner side of the hydraulic cylinder liner 3. The position of the lifting lugs 4 corresponds one-to-one with the flange hole position of the lower flange 2. Vertical through bolt holes are provided on the lifting lugs 4. Each lifting lug 4 is screwed to the corresponding flange hole through its own bolt hole.

[0024] An annular baffle plate 5 is provided in the annular space between the upper end of the hydraulic cylinder liner 3 and the gyratory crushing hydraulic cylinder 1. The baffle plate 5 is mounted on the end face of multiple lifting lugs 4 located on the inner side of the hydraulic cylinder liner 3.

[0025] The hydraulic cylinder liner 3 is placed around the lower flange 2 of the gyratory crusher hydraulic cylinder 1. The lifting lug 4, located on the upper inner side of the hydraulic cylinder liner 3, is positioned above the flange hole of the lower flange 2 of the gyratory crusher hydraulic cylinder 1. The upper and lower lifting lugs 4 of the hydraulic cylinder liner 3 are connected to each other by fixing bolts. This prevents impact and wear on the lower flange 2 of the gyratory crusher hydraulic cylinder 1 during material descent, protecting the safety of the gyratory crusher hydraulic cylinder 1. Simultaneously, the baffle plate 5 is placed above the lifting lug 4 and between the gyratory crusher hydraulic cylinder 1 and the hydraulic cylinder liner 3, protecting the lower flange 2 and bolts and preventing bolt thread deformation under ore impact. This facilitates the replacement and disassembly of the lower flange 2, shortens maintenance time, and ensures the capacity and production efficiency of the gyratory crusher 1.

[0026] As is conventionally chosen, the baffle plate 5 is circular and coaxially arranged with the hydraulic cylinder 1 of the gyratory crusher.

[0027] As a preferred option, the inner wall curvature of the hydraulic cylinder liner 3 matches the outer wall curvature of the lower flange 2. This arrangement allows the hydraulic cylinder liner 3 to be placed more securely on the outside of the lower flange 2; at the same time, it also facilitates the ore-blocking plate 5 to better perform its ore-blocking function, thereby protecting the bolts of the lower flange 2 of the gyratory crusher hydraulic cylinder 1.

[0028] As a preferred option, the hydraulic cylinder liner 3 is formed by fixing and assembling multiple curved panels 6.

[0029] A further preferred embodiment has screw holes on the side wall of the curved panel 6, and two adjacent curved panels 6 are screwed together through their own screw holes, which ensures the connection strength while facilitating installation and disassembly.

[0030] It should be noted that those skilled in the art are capable of adjusting the number of curved panels 6 in the hydraulic cylinder liner 4 according to actual conditions to enhance applicability and operability.

[0031] Furthermore, in this embodiment Figure 1 The given curved panel connection method is only one of the optional connection methods. In this embodiment, the hydraulic cylinder liner 3 is divided into three parts from top to bottom. According to the conventional selection in the field, among the three curved panels 6, the middle curved panel 6 can be selected to have the screw holes opened on its upper and lower parts, while the two curved panels 6 located on the upper and lower parts respectively have the screw holes opened on the upper and lower parts, so as to realize the connection of the three.

[0032] Those skilled in the art are capable of using other methods to connect the curved panel 6 to form the hydraulic cylinder liner 3 according to actual needs, such as splicing along the circumferential direction. When the splicing method of the curved panel 6 is changed, those skilled in the art are also capable of setting the opening position of the screw holes accordingly, which will not be elaborated here.

[0033] As a preferred option, the hydraulic cylinder liner 3 and all the lifting lugs 4 are integrally molded structures.

[0034] In actual work, the hydraulic cylinder liner 3 and all the lifting lugs 4 are set as an integral molding structure, which is also a preferred structure. This structure has its advantages and disadvantages compared with the above-mentioned multi-curved panel splicing structure. Although this setting sacrifices the convenience of disassembly to a certain extent, its advantage is that it is more stable and more applicable in actual construction. Those skilled in the art can adaptively select the setting method according to the actual construction situation.

[0035] As a preferred option, the hydraulic cylinder liner 3 is a high-manganese steel liner. High-manganese steel is a high-strength steel that forms a hardened layer on its surface when subjected to strong impact. The greater the impact load, the deeper the hardened layer, resulting in stronger wear resistance and enabling the hydraulic cylinder liner 3 to have a longer service life.

Claims

1. A hydraulic cylinder guard plate device for a gyratory crusher, comprising a gyratory crushing hydraulic cylinder (1), characterized in that, The lower flange (2) of the gyratory crushing hydraulic cylinder (1) is fitted with a hydraulic cylinder liner (3) on the outside; The hydraulic cylinder liner (3) has multiple lifting lugs (4) of equal number arranged on the upper and lower sides of the inner side along the circumference, and the positions of the lifting lugs (4) on the upper and lower sides correspond one-to-one with the flange hole positions of the lower flange (2); the lifting lugs (4) are provided with screw holes, and each lifting lug (4) is screwed to the corresponding flange hole through its own screw hole. An annular baffle plate (5) is provided in the annular space between the upper end of the hydraulic cylinder liner (3) and the gyratory crushing hydraulic cylinder (1). The baffle plate (5) is mounted on the end face of multiple lifting lugs (4) located on the inner side of the hydraulic cylinder liner (3).

2. The hydraulic cylinder guard plate device for a gyratory crusher as described in claim 1, characterized in that, The inner wall curvature of the hydraulic cylinder liner (3) matches the outer wall curvature of the lower flange (2).

3. The hydraulic cylinder guard plate device for a gyratory crusher as described in claim 2, characterized in that, The hydraulic cylinder liner (3) is formed by fixing and splicing multiple curved panels (6).

4. The hydraulic cylinder guard plate device for a gyratory crusher as described in claim 3, characterized in that, The curved panel (6) has screw holes on its side wall, and two adjacent curved panels (6) are screwed together through their own screw holes.

5. The hydraulic cylinder guard plate device for a gyratory crusher as described in claim 2, characterized in that, The hydraulic cylinder liner (3) and all the lifting lugs (4) are integrally formed.

6. The hydraulic cylinder guard plate device for a gyratory crusher as described in any one of claims 1-5, characterized in that, The hydraulic cylinder liner (3) is a high manganese steel liner.

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