Frame body bolt sealing structure and cone crusher

Abstract

The frame body bolt sealing structure comprises an upper frame shell and a lower frame shell which are buckled with each other, an upper flange is arranged on the bottom edge of the upper frame shell, a lower flange is arranged on the top edge of the lower frame shell, the upper flange is overlapped with the lower flange to form an installation binding face, and a plurality of locking assemblies are connected between the upper flange and the lower flange in a penetrating mode. A sealing assembly is at least arranged between the locking assembly and the upper flange, and the sealing assembly blocks a communication annular gap between the installation binding face and the outside. According to the utility model, the communication annular space between the mounting binding surface and the outside is effectively blocked. Therefore, the overall sealing performance is improved, external muddy water is prevented from permeating into the mounting binding face to cause damage such as erosion and rusting, normal disassembly and assembly operation is ensured, and the service life of components is effectively prolonged. Through cooperation of the O-shaped ring, the gasket and the locking assembly, the overall assembly structure is more compact, assembly gaps are eliminated, meanwhile, a certain degree of buffering effect is provided, the vibration sense is reduced during operation of the crusher, and part abrasion caused by vibration friction is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of machinery, in particular to a frame bolt sealing structure and a cone crusher. Background Art

[0002] The material processed in the cone crusher is crushed between two hard surfaces. The movement of the moving surface depends on the load on the crusher. The crushing action is achieved by the eccentric gyratory motion of the main shaft. Chunks of the processed material (such as rock or ore) are clamped, squeezed and crushed between the moving and fixed cone liners.

[0003] For example, Chinese patent literature has disclosed a bolt protection device for a cone crusher [Chinese Patent No.: 202320172886.2]. The utility model discloses a bolt protection device for a cone crusher, including: a screw protection housing, which is hollow inside to form a screw protection chamber; the cross-section of the screw protection housing is a structure that is small at the top and large at the bottom; a nut protection housing, whose top is connected to the bottom of the screw protection housing; the nut protection housing is hollow inside to form a nut protection chamber, and the top of the nut protection chamber is connected to the bottom of the screw protection chamber; a fixing platform for tightening and fixing the nut is arranged around the upper part of the nut protection chamber; a sealing sheet, which is sleeved on the screw; the edge of the sealing sheet is turned up to form a sealing part; the outer side of the bottom surface of the nut protection housing is vertically extended downward to be provided with an extension part and can be sleeved outside the sealing part. The utility model provides a bolt protection device for a cone crusher, which is conducive to protecting bolts and nuts, avoiding damage to nuts and bolts caused by falling rocks, and preventing nuts from loosening to ensure the normal operation of the equipment.

[0004] In the above technical solution, the upper frame and the lower frame need to be fixedly installed, so a number of installation holes are opened in the two correspondingly, and screws are inserted into the installation holes. Since there is a gap between the screws and the installation holes, foreign matter such as mud and water can easily enter the fitting installation surfaces of the upper frame and the lower frame through the gap, thereby causing the fitting installation surfaces to be damaged by erosion or the like, or the fitting installation surfaces to be rusted, which affects the subsequent normal disassembly and causes the service life of the components to be greatly shortened. Utility Model Content

[0005] The utility model aims to solve the above problems in the prior art and proposes a frame bolt sealing structure and a cone crusher.

[0006] The purpose of the utility model can be achieved through the following technical solutions: a frame bolt sealing structure, including an upper frame shell and a lower frame shell that are interlocked, the bottom edge of the upper frame shell has an upper flange, the top edge of the lower frame shell has a lower flange, the upper flange overlaps the lower flange to form an installation fitting surface, a number of locking components are connected between the upper flange and the lower flange, a sealing component is arranged between the locking component and at least the upper flange, and the sealing component blocks the connecting annular gap between the installation fitting surface and the outside world.

[0007] In the above-mentioned frame bolt sealing structure, the locking assembly includes a bolt and a nut, and the bolt and the nut form a threaded engagement assembly.

[0008] In the frame bolt sealing structure, the upper flange is provided with a plurality of mounting holes 1 along its circumference, the lower flange is provided with a plurality of mounting holes 2 along its circumference, and the plurality of mounting holes 1 are connected to the plurality of mounting holes 2 in a one-to-one correspondence.

[0009] In the above-mentioned frame bolt sealing structure, an annular groove is set at the top of the mounting hole one, and the sealing assembly includes an O-ring placed in the annular groove, a washer is pressed on the O-ring, and the bolt passes through the mounting hole two, the mounting hole one, the O-ring and the washer in sequence from bottom to top, and the protruding upper end of the bolt is sleeved on the nut.

[0010] In the above-mentioned frame bolt sealing structure, the installation fitting surface includes an installation plane where the bottom surface of the upper flange is in contact with the top surface of the lower flange, and also includes an installation conical surface where the outer inclined surface of the upper flange is in contact with the inner inclined surface of the lower flange. The installation plane and the installation conical surface are connected by a transition of a curved arc surface.

[0011] In the above-mentioned frame bolt sealing structure, the angle between the installation plane and the installation cone surface is greater than 90°.

[0012] A cone crusher comprises the frame bolt sealing structure mentioned above.

[0013] In the above-mentioned cone crusher, a hydraulic cylinder is installed at the bottom of the lower frame shell, and the hydraulic cylinder supports the main shaft through a piston. The outer periphery of the main shaft is sleeved with a moving cone liner, and a fixed cone liner is fixed in the upper frame shell. A crushing annular gap is formed between the moving cone liner and the fixed cone liner.

[0014] In the above-mentioned cone crusher, an upper crossbeam is designed on the top of the upper frame shell, a bushing is installed in the upper crossbeam, and the top end of the main shaft penetrates the bushing.

[0015] Compared with the prior art, the frame bolt sealing structure and cone crusher have the following beneficial effects:

[0016] 1. Improved sealing performance: The installation fitting surface is formed by overlapping the upper flange and the lower flange and connecting several locking components, and the annular groove, O-ring and gasket are set to effectively block the connecting annular gap between the installation fitting surface and the outside world. This helps to improve the overall sealing performance, prevent external mud and water from penetrating into the installation fitting surface to cause erosion, rust and other damages, ensure normal disassembly and assembly operations, and effectively extend the service life of components.

[0017] 2. Shock absorption function: Through the cooperation of O-rings, washers and locking components, the overall assembly structure is more compact and the assembly gap is eliminated. At the same time, the O-rings and washers can provide a certain degree of buffering effect, reduce the vibration when the crusher is operating, avoid component wear caused by vibration friction, and further improve the service life of the whole machine.

[0018] 3. Design of the mounting plane and mounting cone: The setting of the mounting plane and mounting cone, as well as the transition connection through the curved surface, helps to ensure that the upper frame shell and the lower frame shell can fit each other during assembly, improve the sealing of the fitting surface, and an angle greater than 90° helps to ensure that the two adjacent surfaces can better cooperate during tightening, thereby improving the stability and fit of the fastening structure.

[0019] In general, the frame bolt sealing structure is designed with an innovative assembly method. Through the reasonable design of the structure and the ingenious setting of the fastening components, the sealing performance is improved, the assembly process is simplified, and the entire structure is made more reliable and stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an enlarged schematic diagram of the bolt sealing structure of the frame.

[0021] Figure 2 It is a cross-sectional schematic diagram of the cone crusher.

[0022] In the figure, 1, upper frame shell; 1a, upper flange; 2, lower frame shell; 2a, lower flange; 3, bolts; 4, nuts; 5, O-rings; 6, washers; 7, mounting plane; 8, bending arc surface; 9, mounting cone surface; 10, hydraulic cylinder; 11, piston; 12, main shaft; 13, moving cone liner; 14, fixed cone liner; 15, upper crossbeam; 16, bushing. DETAILED DESCRIPTION

[0023] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0024] Embodiment 1

[0025] like Figure 1As shown, the frame bolt sealing structure includes an upper frame shell 1 and a lower frame shell 2 that are interlocked. The bottom edge of the upper frame shell 1 has an upper flange 1a, and the top edge of the lower frame shell 2 has a lower flange 2a. The upper flange 1a overlaps the lower flange 2a to form an installation fitting surface. A number of locking components are connected between the upper flange 1a and the lower flange 2a. A sealing component is arranged between the locking component and at least the upper flange 1a. The sealing component blocks the connecting annular gap between the installation fitting surface and the outside world.

[0026] The locking assembly includes a bolt 3 and a nut 4, and the bolt 3 and the nut 4 form a threaded engagement assembly.

[0027] The upper flange 1a is provided with a plurality of mounting holes 1 along its circumference, and the lower flange 2a is provided with a plurality of mounting holes 2 along its circumference. The plurality of mounting holes 1 are connected to the plurality of mounting holes 2 in a one-to-one correspondence.

[0028] The upper flange 1a is a flat edge turned outward from the bottom of the upper frame shell 1, and the lower flange 2a is a flat edge turned outward from the top of the lower frame shell 2. An assembly platform is provided by the upper flange 1a and the lower flange 2a.

[0029] An annular groove is arranged at the top of the mounting hole 1, and the sealing assembly includes an O-ring 5 placed in the annular groove, a washer 6 is pressed on the O-ring 5, and the bolt 3 passes through the mounting hole 2, the mounting hole 1, the O-ring 5 and the washer 6 in sequence from bottom to top, and the protruding upper end of the bolt 3 is sleeved with a nut 4.

[0030] The head of the bolt 3 is clamped under the second mounting hole, and the nut 4 is clamped over the first mounting hole. The upper flange 1a and the lower flange 2a are clamped by screwing the nut 4, thereby completing the fastening assembly of the upper frame shell 1 and the lower frame shell 2. At the same time, the nut 4 forms a pressing force on the gasket 6, so that the gasket 6 presses the O-ring 5, and the O-ring 5 is deformed to block the annular gap between the bolt 3 and the first mounting hole.

[0031] The mounting fitting surface includes a mounting plane 7 where the bottom surface of the upper flange 1a is in contact with the top surface of the lower flange 2a, and also includes a mounting conical surface 9 where the outer inclined surface of the upper flange 1a is in contact with the inner inclined surface of the lower flange 2a. The mounting plane 7 and the mounting conical surface 9 are transitionally connected via a curved arc surface 8.

[0032] During the installation of the cone crusher, the upper frame shell 1 and the lower frame shell 2 need to be fastened and fixed to form an internal crushing chamber. The upper frame shell 1 and the lower frame shell 2 form a mounting plane 7 and a mounting cone surface 9 that match each other according to their shapes, thereby ensuring the sealing structure of the internal crushing chamber.

[0033] The included angle between the mounting plane 7 and the mounting conical surface 9 is greater than 90°.

[0034] Embodiment 2

[0035] Based on the first embodiment, the difference of this embodiment is that:

[0036] like Figure 2 As shown, a cone crusher includes the frame bolt sealing structure mentioned above.

[0037] A hydraulic cylinder 10 is installed at the bottom of the lower frame shell 2. The hydraulic cylinder 10 supports the main shaft 12 through the piston 11. The outer periphery of the main shaft 12 is sleeved with a moving cone liner 13. A fixed cone liner 14 is fixed in the upper frame shell 1. A crushing annular gap is formed between the moving cone liner 13 and the fixed cone liner 14.

[0038] An upper crossbeam 15 is designed on the top of the upper frame shell 1 , a bushing 16 is installed in the upper crossbeam 15 , and the top end of the main shaft 12 is connected to the bushing 16 .

[0039] Put the material into the upper frame shell 1, start the driving device to drive the main shaft 12 to rotate, and synchronously drive the movable cone liner 13 to rotate. When the material enters the crushing annular gap between the movable cone liner 13 and the fixed cone liner 14, the relative movement of the two will crush the material to the required specifications.

[0040] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A frame bolt sealing structure, comprising an upper frame shell and a lower frame shell that are interlocked, characterized in that: The bottom edge of the upper frame shell has an upper flange, and the top edge of the lower frame shell has a lower flange. The upper flange overlaps the lower flange to form a mounting fitting surface. A number of locking components are connected between the upper flange and the lower flange. A sealing component is arranged between the locking component and at least the upper flange. The sealing component blocks the connecting annular gap between the mounting fitting surface and the outside world.

2. The frame bolt sealing structure according to claim 1, characterized in that: The locking assembly comprises a bolt and a nut, wherein the bolt and the nut form a threaded engagement assembly.

3. The frame bolt sealing structure according to claim 2, characterized in that: The upper flange is provided with a plurality of mounting holes one along the circumference, and the lower flange is provided with a plurality of mounting holes two along the circumference, and a plurality of the mounting holes one are connected with a plurality of the mounting holes two in a one-to-one correspondence.

4. The frame bolt sealing structure according to claim 3, characterized in that: An annular groove is arranged at the top of the first mounting hole, the sealing assembly comprises an O-ring placed in the annular groove, a washer is pressed on the O-ring, the bolt passes through the second mounting hole, the first mounting hole, the O-ring and the washer in sequence from bottom to top, and the protruding upper end of the bolt is sleeved with the nut.

5. The frame bolt sealing structure according to claim 4, characterized in that: The mounting fitting surface includes a mounting plane where the bottom surface of the upper flange is in contact with the top surface of the lower flange, and also includes a mounting conical surface where the outer inclined surface of the upper flange is in contact with the inner inclined surface of the lower flange. The mounting plane and the mounting conical surface are transitionally connected via a curved arc surface.

6. The frame bolt sealing structure according to claim 5, characterized in that: The included angle between the mounting plane and the mounting conical surface is greater than 90°.

7. A cone crusher, characterized in that: It comprises a frame bolt sealing structure as claimed in any one of claims 1 to 6.

8. The cone crusher according to claim 7, characterized in that: A hydraulic cylinder is installed at the bottom of the lower frame shell, and the hydraulic cylinder supports the main shaft through a piston. The outer periphery of the main shaft is sleeved with a dynamic cone liner, and a fixed cone liner is fixed in the upper frame shell. A crushing annular gap is formed between the dynamic cone liner and the fixed cone liner.

9. The cone crusher according to claim 8, characterized in that: An upper crossbeam is installed on the top of the upper frame shell, a bushing is installed in the upper crossbeam, and the top end of the main shaft passes through the bushing.

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