Single cylinder hydraulic cone crusher

Abstract

The application discloses a single-cylinder hydraulic cone crusher, which comprises a slip ring cover sealing assembly, an upper rack assembly, a lower rack assembly, a main shaft assembly, a transmission assembly and a piston assembly. The upper rack assembly is fixedly arranged on the lower rack assembly. The main shaft assembly is arranged on the lower rack assembly. The transmission assembly is sealingly and fixedly arranged on the lower rack assembly. The piston assembly is sealingly and fixedly arranged on the lower rack assembly. The slip ring cover sealing assembly is arranged on the main shaft assembly. The lower end of the slip ring cover sealing assembly is sealingly and fixedly connected with the lower rack assembly. The upper end of the slip ring cover sealing assembly is sealingly and fixedly connected with the main shaft assembly. The upper rack assembly, the lower rack assembly, the transmission assembly, the piston assembly, the main shaft assembly and the slip ring cover sealing assembly are all sealingly designed, so that the sealing effect of the crusher is better, and the service life of the crusher is longer. Meanwhile, in the slip ring cover sealing assembly, the positions of the straight cylinder sealing cover and the supporting sealing ring are lifted, the inner oil return space is increased, the oil return channel is optimized, and the lubricating oil can be circulated and cooled down smoothly.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of crushers, in particular to a single-cylinder hydraulic cone crusher. BACKGROUND

[0002] The single-cylinder hydraulic cone crusher drives the eccentric swing of the crushing wall through the eccentric sleeve, and cooperates with the mill wall to complete the crushing of the material. The single-cylinder hydraulic cone crusher has a wide range of applications, good product particle type, delicate structure, high degree of automation, simple operation and maintenance, stable and safe structure, and low production cost. However, due to the working characteristics, the frictional stress of the important working components of the cone is large, the heat production is high, and local overheating phenomenon is easy to occur, which affects the service life of the wearing parts. SUMMARY

[0003] The present application aims to overcome the shortcomings of the prior art and provide a single-cylinder hydraulic cone crusher.

[0004] The purpose of the present application is achieved by the following technical solutions:

[0005] A single-cylinder hydraulic cone crusher, comprising an upper rack assembly, a lower rack assembly, a transmission assembly, a piston assembly, a main shaft assembly and a slip ring cover sealing assembly, the upper rack assembly is fixedly arranged on the lower rack assembly, the lower end of the main shaft assembly is rotatably arranged on the lower rack assembly, the upper end of the main shaft assembly is rotatably arranged on the upper rack assembly, the transmission assembly is sealingly and fixedly arranged on the lower rack assembly and is used to drive the rotation of the main shaft assembly, the piston assembly is sealingly and fixedly arranged on the lower rack assembly and is used to drive the up-down movement of the main shaft assembly, the slip ring cover sealing assembly is sleeved on the main shaft assembly, the lower end of the slip ring cover sealing assembly is sealingly and fixedly connected with the lower rack assembly, and the upper end of the ring cover sealing assembly is sealingly and fixedly connected with the main shaft assembly.

[0006] The ring cover sealing assembly comprises a conical sealing cover, a straight sealing cover, a supporting sealing ring, a pressing ring, a dustproof ring, a dustproof sealing ring, a dustproof ring, a weight plate and a ring cover sealing ring, the lower end of the conical sealing cover is fixedly arranged on the lower rack assembly, and the ring cover sealing ring is arranged between the lower rack assembly and the conical sealing cover, the lower end of the straight sealing cover is sealingly and fixedly connected with the upper end of the conical sealing cover, the supporting sealing ring is sealingly and fixedly arranged on the inner wall of the straight sealing cover, the outer wall of the straight sealing cover is sealingly matched with the dustproof sealing ring, the dustproof sealing ring is sealingly and fixedly arranged on the dustproof ring, the dustproof ring is sealingly and fixedly arranged on the main shaft assembly through the pressing ring, the main shaft assembly is provided with an inner groove, the upper end of the straight sealing cover is arranged in the inner groove, the supporting sealing ring is provided with a first V-shaped surface, the dustproof ring is provided with a supporting sealing ring, and the dustproof ring is provided with a second V-shaped surface matched with the first V-shaped surface, the dustproof ring is fixedly provided with the weight plate, the lower rack assembly is provided with a first oil inlet, the straight sealing cover is provided with a second oil inlet, and the outlet end of the first oil inlet is sealingly provided with an oil conveying pipe between the inlet end of the second oil inlet, and the outlet of the second oil inlet is arranged between the inner wall of the straight sealing cover and the upper surface of the supporting sealing ring.

[0007] Further, the main shaft assembly comprises a main shaft, a moving cone, a crushing wall, a locking ring, a counterweight ring, a slip ring and an eccentric sleeve, the middle part of the main shaft is coaxially fixedly provided with the moving cone, the crushing wall is coaxially fixedly arranged on the moving cone, the locking ring is detachably arranged on the main shaft and used for preventing the crushing wall from sliding on the moving cone, the dustproof ring is sealingly and fixedly arranged on the moving cone through the pressing ring, the moving cone is provided with an inner groove, the slip ring is coaxially arranged on the eccentric sleeve, the eccentric sleeve is connected with the main shaft through a shaft bushing, the counterweight ring is sleeved on the main shaft and fixedly connected with the slip ring and the eccentric sleeve, the eccentric sleeve is arranged in the lower rack assembly through an eccentric bushing, and the lower end of the main shaft is matched with the piston assembly.

[0008] Further, the upper rack assembly comprises an upper rack, a grinding wall, a feeding hopper, a fixing sleeve, an insert sleeve, a joint bearing, an oil seal ring, a top bearing cover and a connecting component, the upper rack is fixedly connected with the lower rack assembly, the grinding wall is fixedly arranged on the inner side of the lower side of the upper rack and cooperates with the crushing wall, the grinding wall is fixed on the upper rack through the connecting component, the feeding hopper is fixedly arranged on the inner wall of the upper side of the upper rack and cooperates with the upper end of the grinding wall, the insert sleeve is coaxially sleeved on the upper end of the main shaft, the fixing sleeve is rotatably sleeved on the insert sleeve, the joint bearing is arranged between the fixing sleeve and the insert sleeve, the oil seal ring is arranged between the lower end of the fixing sleeve and the insert sleeve, and the top bearing cover is fixedly arranged on the upper end of the fixing sleeve.

[0009] Further, the connecting component comprises a pull rod, a gasket, a guide pipe, an upper elastic sheet, a lower elastic sheet and a locking ring, the lower end of the pull rod is connected with the grinding wall, the upper end of the pull rod passes through the upper rack and is threadedly connected with the locking ring, the gasket is sleeved on the pull rod and is in contact with the upper rack, the guide pipe is sleeved on the pull rod and is arranged between the gasket and the locking ring, the upper elastic sheet and the lower elastic sheet are both sleeved on the guide pipe, and the upper elastic sheet is arranged close to the locking ring.

[0010] Further, the lower rack assembly comprises a lower rack, a connecting arm, a bearing sleeve and a material falling shield, the upper end of the lower rack is sealingly and fixedly connected with the upper rack, the lower rack is fixedly connected with the bearing sleeve through the connecting arm, the upper end of the bearing sleeve is sealingly and fixedly connected with the lower end of the conical sealing cover, the piston assembly is sealingly and fixedly arranged on the lower end of the bearing sleeve, the inner wall of the bearing sleeve cooperates with the outer wall of the eccentric bushing, the material falling shield is fixedly arranged on the connecting arm, the transmission assembly is sealingly and fixedly arranged in the connecting arm and is connected with the slip ring, and the first oil inlet is arranged on the bearing sleeve.

[0011] Further, the piston assembly comprises a hydraulic cylinder, a piston body, a hole wear-resistant ring, an upper spherical bearing, a lower spherical bearing and a middle plate, the upper end of the hydraulic cylinder is sealingly and fixedly connected with the lower end of the bearing sleeve, the piston body is slidingly arranged in the hydraulic cylinder and has the lower spherical bearing fixedly arranged coaxially on the top, the upper spherical bearing is fixedly arranged coaxially on the lower end of the main shaft, the middle plate is arranged between the lower spherical bearing and the upper spherical bearing, and the hole wear-resistant ring is arranged between the hydraulic cylinder and the piston body.

[0012] Furthermore, the transmission assembly includes a large bevel gear, a small bevel gear, a transmission shaft, an end cover, and a horizontal shaft seat. The large bevel gear is coaxially fixed on the slip ring, and the small bevel gear is coaxially fixed on the output end of the transmission shaft and cooperates with the large bevel gear. The transmission shaft is rotatably mounted in the horizontal shaft seat via a bearing. The end cover that cooperates with the transmission shaft is fixedly mounted on the end of the horizontal shaft seat, and the horizontal shaft seat is sealed and fixedly mounted in the connecting arm.

[0013] Furthermore, the bearing sleeve is provided with a first lubrication cavity that mates with the large bevel gear, and a second lubrication cavity that mates with the small bevel gear is provided between the bearing sleeve and the connecting arm. The first lubrication cavity and the second lubrication cavity are connected, and an oil drain channel is provided at the bottom of the second lubrication cavity.

[0014] Furthermore, a dust-proof ring is provided between the crushing wall and the locking ring.

[0015] Furthermore, the gasket is provided with a through hole that mates with the conduit.

[0016] The beneficial effects of this invention are:

[0017] 1) In this technology, the upper frame assembly, lower frame assembly, transmission assembly, piston assembly, main shaft assembly and slip ring cover sealing assembly all adopt sealing design, which makes the sealing effect of the crusher better and the service life of the crusher longer. At the same time, in the slip ring cover sealing assembly, the position of the straight cylindrical sealing cover and the support sealing ring is raised, which increases the inner cavity oil return space and optimizes the oil return channel, so that the lubricating oil can circulate and cool smoothly.

[0018] 2) In this technology, an independent frame-type counterweight ring is set on the slip ring. The counterweight ring has both counterweight and spatial structure. Then, through the spatial structure of the counterweight ring, it is combined with the raised straight cylindrical sealing cover and the supporting sealing ring to form a larger oil return space, which can better achieve lubrication and circulating cooling.

[0019] 3) Traditionally, O-rings are used for dust prevention between the top bearing cover and the fixed sleeve. This technology uses a stepped compaction design to replace the O-rings between the top bearing cover and the fixed sleeve, which simplifies the installation steps and assembly design while ensuring dust prevention. Attached Figure Description

[0020] Figure 1 This is a diagram of the internal connection structure of the crusher;

[0021] Figure 2 for Figure 1 Enlarged structural diagram at point A;

[0022] Figure 3 for Figure 1enlarged structural view of B in FIG. 1;

[0023] Figure 4 enlarged structural view of C in FIG. 1; Figure 1

[0024] Figure 5 enlarged structural view of D in FIG. 1; Figure 1

[0025] Figure 6 enlarged structural view of E in FIG. 1; Figure 1

[0026] Figure 7 perspective view of the counterweight ring;

[0027] Figure 8 perspective view of the compression ring;

[0028] Figure 9 perspective view of the dustproof ring;

[0029] Figure 10 perspective view of the hydraulic cylinder protective cover

[0030] In the drawings, 1 is a conical sealing cover, 2 is a straight cylinder sealing cover, 3 is a supporting sealing ring, 4 is a compression ring, 5 is a dustproof ring, 6 is a dustproof sealing ring, 7 is a dustproof ring, 8 is a weight plate, 9 is a ring cover sealing ring, 10 is a first oil inlet, 11 is a second oil inlet, 12 is an oil delivery pipe, 13 is a main shaft, 14 is a moving cone, 15 is a crushing wall, 16 is a locking ring, 17 is a counterweight ring, 18 is a sliding ring, 19 is an eccentric sleeve, 20 is an upper frame, 21 is a rolling wall, 22 is a feed hopper, 23 is a fixed sleeve, 24 is an insert sleeve, 25 is a knuckle bearing, 26 is an oil seal ring, 27 is a top bearing cover, 28 is a pull rod, 29 is a gasket, 30 is a guide pipe, 31 is an upper spring piece, 32 is a lower spring piece, 33 is a locking ring, 34 is a lower frame, 35 is a connecting arm, 36 is a bearing sleeve, 37 is a material falling protective cover, 38 is a hydraulic cylinder, 39 is a piston body, 40 is a hole wear-resistant ring, 41 is an upper spherical bearing, 42 is a lower spherical bearing, 43 is a middle plate, 44 is a large bevel gear, 45 is a small bevel gear, 46 is a transmission shaft, 47 is an end cover, 48 is a horizontal shaft seat, 49 is an oil discharge passage, 50 is a through hole, 51 is a dustproof ring, 52 is a counterweight, 53 is an upper beam ring, 54 is a lower beam ring, 55 is a supporting rib, 56 is a first bolt hole, 57 is a second bolt hole, 58 is a third bolt hole, 59 is a hydraulic cylinder protective cover, and 60 is a fixed block. DETAILED DESCRIPTION

[0031] ​​​The technical solutions of the present application will be described clearly and completely below in connection with the embodiments. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative effort belong to the scope of protection of the present application.

[0032] Referring to Figures 1-10 The present application provides a technical solution:

[0033] A single-cylinder hydraulic cone crusher comprises an upper frame assembly, a lower frame assembly, a transmission assembly, a piston assembly, a main shaft assembly and a slip ring cover sealing assembly. The upper frame assembly is fixedly arranged on the lower frame assembly. The lower end of the main shaft assembly is rotatably arranged on the lower frame assembly. The upper end of the main shaft assembly is rotatably arranged on the upper frame assembly. The transmission assembly is sealingly and fixedly arranged on the lower frame assembly and is used to drive the main shaft assembly to rotate. The piston assembly is sealingly and fixedly arranged on the lower frame assembly and is used to drive the main shaft assembly to move up and down. The slip ring cover sealing assembly is sleeved on the main shaft assembly. The lower end of the slip ring cover sealing assembly is sealingly and fixedly connected with the lower frame assembly. The upper end of the slip ring cover sealing assembly is sealingly and fixedly connected with the main shaft assembly. The upper frame assembly and the lower frame assembly are fixedly connected and used to mount the main shaft assembly. The piston assembly is fixed on the lower frame assembly and can push the main shaft assembly to move up and down. The transmission assembly is arranged on the lower frame assembly, transmits power to the main shaft assembly and drives the main shaft assembly to rotate. The slip ring cover sealing assembly is arranged on the lower frame assembly and sealingly cooperates with the main shaft assembly, so that the lubricating oil is prevented from being contaminated.

[0034] The ring cover sealing assembly comprises a conical sealing cover 1, a straight sealing cover 2, a supporting sealing ring 3, a pressing ring 4, a dustproof ring 5, a dustproof sealing ring 6, a dustproof ring 7, a weight plate 8 and a ring cover sealing ring 9. The lower end of the conical sealing cover 1 is fixedly arranged on the lower rack assembly, and the ring cover sealing ring 9 is arranged between the lower rack assembly and the conical sealing cover 1. The lower end of the straight sealing cover 2 is sealingly and fixedly connected with the upper end of the conical sealing cover 1. The supporting sealing ring 3 is sealingly and fixedly arranged on the inner wall of the straight sealing cover 2. The outer wall of the straight sealing cover 2 is sealingly matched with the dustproof sealing ring 6. The dustproof sealing ring 6 is sealingly and fixedly arranged on the dustproof ring 5. The dustproof ring 5 is sealingly and fixedly arranged on the main shaft assembly through the pressing ring 4. The main shaft assembly is provided with an inner groove. The upper end of the straight sealing cover 2 is arranged in the inner groove. The supporting sealing ring 3 is provided with a first V-shaped surface. The dustproof ring 7 is provided with the supporting sealing ring 3. The dustproof ring 7 is provided with a second V-shaped surface matched with the first V-shaped surface. The weight plate 8 is fixedly arranged on the dustproof ring 7. The lower rack assembly is provided with a first oil inlet 10. The straight sealing cover 2 is provided with a second oil inlet 11. The outlet end of the first oil inlet 10 and the inlet end of the second oil inlet 11 are sealingly provided with an oil conveying pipe 12. The outlet of the second oil inlet 11 is arranged between the inner wall of the straight sealing cover 2 and the upper surface of the supporting sealing ring 3. The conical sealing cover 1 and the straight sealing cover 2 are coaxially arranged. The supporting sealing ring 3 is arranged on the inner wall of the straight sealing cover 2 to prevent the straight sealing cover 2 from deforming. The upper end of the straight sealing cover 2 is arranged in the inner groove of the moving cone 14. In the process of rotating the moving cone 14, the dustproof sealing ring 6 is always sealingly and closely matched with the outer wall of the straight sealing cover 2. The dustproof sealing ring 6 is arranged in the dustproof ring 5. The dustproof ring 5 is fixedly arranged on the moving cone 14 through the pressing ring 4. Through the cooperation of the first V-shaped surface and the second V-shaped surface, under the action of the weight plate 8, the dustproof ring 7 is closely matched with the supporting sealing ring 3 to further play the dustproof function. The conical sealing cover 1 and the straight sealing cover 2 are used to prevent dust from entering the lubricating oil. The straight sealing cover 2 is matched with the main shaft 13. The position of the supporting sealing ring 3 is raised. A large oil return space is formed by the independent counterweight frame structure and the position of the supporting sealing ring 3. The lubricating oil is smoothly circulated to achieve the effect of significant lubrication and cooling. An oil blocking surface is arranged on the dustproof ring 7. The oil blocking surface is designed in an arc surface to facilitate the smooth return of the lubricating oil. In addition, after the position of the dustproof ring 7 is raised, the distance between the rotational center of gravity of the dustproof ring 7 and the rotational starting point of the main shaft 13 is reduced. The rotational angle is reduced. Thus, the abrasion of the main shaft dustproof ring 13 at the matching position with the main shaft 13 can be reduced. The lubricating oil enters from the inlet end of the first oil inlet 10, then passes through the first oil inlet 10, the oil conveying pipe 12 and the second oil inlet 11 in sequence, and then enters the supporting sealing ring 3. Then, the lubricating oil flows downward for lubrication. Finally, the lubricating oil returns to the oil tank through the first lubricating cavity, the second lubricating cavity and the oil discharge channel 49.

[0035] In some embodiments, the main shaft assembly includes a main shaft 13, a moving cone 14, a crushing wall 15, a locking ring 16, a counterweight ring 17, a sliding ring 18 and an eccentric sleeve 19, the moving cone 14 is coaxially fixed on the middle part of the main shaft 13, the crushing wall 15 is coaxially fixed on the moving cone 14, the locking ring 16 is detachably arranged on the main shaft 13 and is used to prevent the crushing wall 15 from sliding on the moving cone 14, the dustproof ring 5 is sealingly and fixedly arranged on the moving cone 14 through the compression ring 4, the moving cone 14 is provided with an inner groove, the sliding ring 18 is coaxially arranged on the eccentric sleeve 19, the eccentric sleeve 19 is connected with the main shaft 13 through a shaft sleeve, the counterweight ring 17 is sleeved on the main shaft 13 and is fixedly connected with the sliding ring 18 and the eccentric sleeve 19, the eccentric sleeve 19 is arranged in the lower rack assembly through an eccentric sleeve, and the lower end of the main shaft 13 is matched with the piston assembly. The dustproof ring 51 is arranged between the crushing wall 15 and the locking ring 16. Among them, the moving cone 14 is coaxially fixed on the middle part of the main shaft 13, the crushing wall 15 is fixed on the moving cone 14 through the locking ring 16, the locking ring 16 is threadedly connected with the main shaft 13, the dustproof ring 51 is arranged between the crushing wall 15 and the locking ring 16 to prevent dust from entering between the moving cone 14 and the crushing wall 15, the counterweight ring 17, the sliding ring 18 and the eccentric sleeve 19 are coaxially arranged and sleeved on the main shaft 13, the upper ends of the sliding ring 18 and the eccentric sleeve 19 are connected through the counterweight ring 17, the bevel gear 44 is fixedly connected with the sliding ring 18 and drives the sliding ring 18 to rotate, the sliding ring 18 drives the main shaft 13 to rotate through the eccentric sleeve 19 and the shaft sleeve, the main shaft 13 drives the crushing wall 15 to rotate through the moving cone 14, and the crushing wall 15 is matched with the mill wall 21 to realize crushing. The main shaft 13 rotates in a circular manner under the eccentric rotating action of the eccentric sleeve 19, the crushing wall 15 and the mill wall 21 form a crushing cavity, and material crushing is performed. The locking ring 16 is threadedly connected with the main shaft 13 to prevent loosening, one end of the locking ring 16 is welded with the crushing wall 15 to prevent the crushing wall 15 from moving. The counterweight ring 17 includes a counterweight 52, an upper beam ring 53, a lower beam ring 54 and a support rib 55, the upper beam ring 53 is arranged parallel to the lower beam ring 54, the upper beam ring 53 and the lower beam ring 54 are fixedly connected through a plurality of uniformly distributed support ribs 55, the counterweight 52 is fixedly arranged on the upper beam ring 53, the counterweight 52 is annularly provided with a first bolt hole 56 and a second bolt hole 57, the first bolt hole 56 is arranged close to the edge of the counterweight 52, and the lower beam ring 54 is annularly provided with a third bolt hole 58 matched with the second bolt hole 57. The sliding ring 18 is fixed on the counterweight 52 through the first bolt hole 56, and the eccentric sleeve is fixed on the counterweight 52 through the third bolt hole 58 and the second bolt hole 57. The traditional sliding ring 18 is designed with a counterweight, so that the internal structure is compact, the present technology adopts an inner cavity combined design, an independent counterweight ring 17 is independently arranged on the sliding ring 18 in a frame type, the counterweight ring 17 has a counterweight and a space structure, then the space structure is combined with the straight cylinder sealing cover 2 and the support sealing ring 3 to form a large oil return space, so that lubrication and circulating cooling can be better realized.The counterweight ring 17 and the sliding ring 18 are connected and fastened by high-strength full-thread hexagonal head bolts and inner hexagonal bolts, so that the whole machine is more stable during operation. The shaft bushing has large friction with the main shaft 13, and is made of MC2020 polyamide high polymer material and has an interference fit with the inner hole of the eccentric sleeve 19.

[0036] In some embodiments, the upper rack assembly includes an upper rack 20, a rolling wall 21, a feed hopper 22, a fixed sleeve 23, an insert sleeve 24, a knuckle bearing 25, an oil seal ring 26, a top bearing cover 27, and a connecting component. The upper rack 20 is fixedly connected with the lower rack assembly, the rolling wall 21 is fixedly arranged on the inner wall of the lower side of the upper rack 20 and cooperates with the crushing wall 15, the rolling wall 21 is fixed on the upper rack 20 through the connecting component, the feed hopper 22 is fixedly arranged on the inner wall of the upper side of the upper rack 20 and the lower end cooperates with the upper end of the rolling wall 21, the insert sleeve 24 is coaxially sleeved on the upper end of the main shaft 13, the fixed sleeve 23 is rotatably sleeved on the insert sleeve 24, the knuckle bearing 25 is arranged between the fixed sleeve 23 and the insert sleeve 24, the oil seal ring 26 is arranged between the lower end of the fixed sleeve 23 and the insert sleeve 24, the top bearing cover 27 is fixedly arranged on the upper end of the fixed sleeve 23, and the fixed sleeve 23 is fixedly connected with the upper end of the upper rack 20 through the fixed rod. The rolling wall 21 is fixed on the inner wall of the lower side of the upper rack 20 through the connecting component, the feed hopper 22 is fixedly arranged on the inner wall of the upper end of the upper rack 20 and protects the upper rack 20, the lower end of the feed hopper 22 is arranged in the inner part of the upper end of the rolling wall 21, and the rolling wall 21 cooperates with the crushing wall 15 to crush the material. The fixed sleeve 23 is connected with the upper rack 20 through two symmetrically arranged fixed rods, the fixed sleeve 23 installs the upper end of the main shaft 13 through the knuckle bearing 25 of the prior art, the insert sleeve 24 is arranged to reduce the wear between the main shaft 13 and the fixed sleeve 23, the oil seal ring 26 is arranged between the insert sleeve 24 and the fixed sleeve 23 to prevent the lubricating oil used by the knuckle bearing 25 from leaking out. The top bearing cover 27 and the end of the fixed sleeve 23 are in surface-to-surface sealing cooperation. The upper rack 20 and the lower rack 34 adopt a taper design, zero clearance is achieved between the upper rack 20 and the lower rack 34, and high-strength 10.9 bolts are used for connection and fastening. The rolling wall 21 is connected with the upper rack 20 by a pull rod 28 to replace resin filling, so that installation and disassembly are more convenient. The design of the knuckle bearing 25 makes the main shaft 13 run more stably and reliably. The oil seal ring 26 at the lower end hole diameter of the knuckle bearing 25 adopts a U-shaped oil seal design, which not only avoids friction and wear during the swing of the main shaft 13, but also has good dustproof effect. The top bearing cover 27 has a dustproof effect and is connected with the fixed rod of the upper rack 20 by high-strength bolts. Generally, an O-shaped sealing ring is used between the top bearing cover 27 and the fixed sleeve 23 for dustproofing. In this technology, a stepped compaction design is used between the top bearing cover 27 and the fixed sleeve 23 to replace the O-shaped sealing ring, which simplifies the installation steps and assembly design under the condition of ensuring the dustproof effect. The insert sleeve 24 adopts an integral design, which greatly improves the assembly precision.

[0037] In some embodiments, the connecting component includes a pull rod 28, a gasket 29, a guide pipe 30, an upper spring washer 31, a lower spring washer 32, and a locking ring 33. The lower end of the pull rod 28 is connected to the mill wall 21, the upper end of the pull rod 28 is threaded with the locking ring 33 after passing through the upper rack 20, the gasket 29 is sleeved on the pull rod 28 and in contact with the upper rack 20, the guide pipe 30 is sleeved on the pull rod 28 and arranged between the gasket 29 and the locking ring 33, the upper spring washer 31 and the lower spring washer 32 are both sleeved on the guide pipe 30, and the upper spring washer 31 is arranged close to the locking ring 33. The gasket 29 is provided with a through hole 50 matched with the guide pipe 30. The lower end of the pull rod 28 is connected to the lower end of the mill wall 21, under the action of the pull rod 28, the outer wall of the mill wall 21 is attached to the inner wall of the upper rack 20, the locking ring 33 is a nut threaded with the upper end of the pull rod 28, the gasket 29 and the guide pipe 30 are sleeved on the pull rod 28, the upper spring washer 31 and the lower spring washer 32 are both provided with multiple pieces and sleeved on the guide pipe 30, the guide pipe 30 has a T-shaped cross section, the upper spring washer 31 and the lower spring washer 32 are both butterfly washers and arranged in equal numbers, the butterfly washers have a damping function, the large-diameter direction of the upper spring washer 31 is arranged opposite to the large-diameter direction of the lower spring washer 32. The lower end of the guide pipe 30 is not in contact with the upper rack 20 and leaves an adjusting spacing. The gasket 29 used on the pull rod 28 is a spring washer, adopts a tension guide installation design, and through a guide pipe 30 reserved tight distance design, the guide pipe 30 is in contact with the end face of the locking ring 33 (the reserved distance is 0) during installation, which means that the installation is tight and in place, this design realizes reliable installation and simple operation. The lower end of the guide pipe 30 is arranged in the through hole 50 and has a guiding function.

[0038] In some embodiments, the lower rack assembly comprises a lower rack 34, a connecting arm 35, a bearing sleeve 36 and a blanking shield 37, the upper end of the lower rack 34 is sealingly and fixedly connected with the upper rack 20, the lower rack 34 is fixedly connected with the bearing sleeve 36 through the connecting arm 35, the upper end of the bearing sleeve 36 is sealingly and fixedly connected with the lower end of the conical sealing cover 1, the piston assembly is sealingly and fixedly arranged on the lower end of the bearing sleeve 36, the inner wall of the bearing sleeve 36 cooperates with the outer wall of the eccentric bushing, the blanking shield 37 is fixedly arranged on the connecting arm 35, the transmission assembly is sealingly and fixedly arranged in the connecting arm 35 and connected with the slip ring 18, the bearing sleeve 36 is provided with the first oil inlet 10. Wherein, the lower rack 34 is coaxially arranged while being sealingly and fixedly connected with the upper rack 20 through bolts, the lower rack 34 is sealingly and fixedly connected with the bearing sleeve 36 through two or more opposite connecting arms 35, the outer wall of the lower end of the main shaft 13 cooperates with the inner wall of the bearing sleeve 36, the eccentric bushing is arranged to prevent the inner wall of the bearing sleeve 36 from being abraded when the eccentric sleeve 19 rotates. The blanking shield 37 protects the connecting arm 35 from being damaged by the broken material. The blanking shield 37 is arranged on the connecting arm 35 of the lower rack 34 to protect the connecting arm 35 from being damaged by the falling material. The eccentric bushing is installed in the hole in the bearing sleeve 36 in an interference fit, the inner hole of the eccentric bushing cooperates with the eccentric sleeve 19 in a clearance fit, the eccentric sleeve rotates eccentrically, friction generates heat, so the eccentric bushing needs to have good heat conductivity, wear resistance and high strength. The eccentric bushing is made of MC2020 polyamide high polymer material. In addition to the characteristics of ordinary MC materials, due to its large molecular weight and high crystallinity, it also has high mechanical strength, can be applied to large machinery, is wear-resistant, has high service life, wide temperature range, can reduce vibration, does not produce noise, runs smoothly and is light in weight. The performance is superior and the cost is lower than that of copper alloy.

[0039] In some embodiments, the piston assembly comprises a hydraulic cylinder 38, a piston body 39, a hole wear ring 40, an upper spherical bearing 41, a lower spherical bearing 42 and a middle plate 43, the upper end of the hydraulic cylinder 38 is sealingly and fixedly connected with the lower end of the bearing sleeve 36, the piston body 39 is slidingly arranged in the hydraulic cylinder 38 and the lower spherical bearing 42 is coaxially and fixedly arranged at the top of the piston body 39, the upper spherical bearing 41 is coaxially and fixedly arranged on the lower end of the main shaft 13, the middle plate 43 is arranged between the lower spherical bearing 42 and the upper spherical bearing 41, and the hole wear ring 40 is arranged between the hydraulic cylinder 38 and the piston body 39. Wherein, the piston body 39, the hole wear ring 40, the upper spherical bearing 41, the lower spherical bearing 42 and the middle plate 43 are coaxially arranged and are all arranged in lubricating oil, the piston body 39 drives the main shaft 13 to move up and down through the upper spherical bearing 41, the lower spherical bearing 42 and the middle plate 43, the upper and lower surfaces of the middle plate 43 are both provided with spherical grooves, and the lower surface of the upper spherical bearing 41 is provided with a groove for facilitating the entry of lubricating oil. The outer hydraulic cylinder protection cover 59 not only protects the hydraulic cylinder well, but also effectively prevents dust from entering, a plurality of fixing blocks 60 are uniformly welded on the inner wall of the hydraulic cylinder protection cover 59, the side wall of the hydraulic cylinder protection cover 59 and the fixing blocks 60 are both provided with threaded holes matched with each other, and the hydraulic cylinder protection cover 59 is fixed on the hydraulic cylinder 38 by bolts passing through the threaded holes. The hydraulic cylinder 38 and the lower rack 34 are connected by 10.9 high-strength bolts, and a dustproof design is adopted by using a sealing ring. The hole wear ring 40 is embedded to reduce the contact surface of the piston body 39 moving up and down and effectively reduce the wear of the piston body 39. The convex surface of the lower spherical bearing 42 is placed in the spherical groove of the middle plate 43, and the middle plate 43 freely slides in the spherical groove of the lower spherical bearing 42 when the movable cone 14 rotates and swings.

[0040] In some embodiments, the transmission assembly comprises a large bevel gear 44, a small bevel gear 45, a transmission shaft 46, an end cover 47 and a horizontal shaft seat 48, the large bevel gear 44 is coaxially fixed on the slip ring 18, the small bevel gear 45 is coaxially fixed on the output end of the transmission shaft 46 and matched with the large bevel gear 44, the transmission shaft 46 is rotatably arranged in the horizontal shaft seat 48 through a bearing, the end cover 47 is fixed on the end of the horizontal shaft seat 48 and matched with the transmission shaft 46, and the horizontal shaft seat 48 is sealingly fixed in the connecting arm 35. The horizontal shaft seat 48 is sealingly installed in the connecting arm 35, and the horizontal shaft seat 48 is mainly used for installing the transmission shaft 46, the input end of the transmission shaft 46 is connected with the output end of the external motor, and the other end of the transmission shaft 46 drives the slip ring 18 to rotate through the matching of the large bevel gear 44 and the small bevel gear 45. On the side close to the second lubricating cavity, the end of the bearing on the transmission shaft 46 is provided with a B-shaped oil seal, so that the lubricating oil of the bearing on the transmission shaft 46 is separated from the lubricating oil in the second lubricating cavity. The end cover 47 prevents dust outside from entering the horizontal shaft seat 48. The large bevel gear 44 and the small bevel gear 45 are matched through the red lead inspection gap adjustment, so as to ensure the installation precision, the gear number of the small bevel gear 45 is adjusted to reduce the transmission ratio, and then the linear speed of the transmission shaft 46 is reduced, and the heating temperature of the transmission shaft 46 is reduced.

[0041] In some embodiments, the bearing sleeve 36 is provided with a first lubricating cavity matched with the large bevel gear 44, the second lubricating cavity matched with the small bevel gear 45 is arranged between the bearing sleeve 36 and the connecting arm 35, the first lubricating cavity and the second lubricating cavity are communicated, and the bottom of the second lubricating cavity is provided with an oil discharge channel 49. The lubricating oil in the first lubricating cavity lubricates the large bevel gear 44, the second lubricating cavity lubricates the small bevel gear 45, and the oil discharge channel 49 is arranged to make the lubricating oil return to the oil tank through the first lubricating cavity, the second lubricating cavity and the oil discharge channel 49 in sequence.

[0042] In the description of the present application, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "inner", "front", "central", "both ends" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0043] In this application, unless otherwise clearly indicated and limited, the terms "mounting", "setting", "connecting", "fixing", "hinging" and the like should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise clearly limited, the above terms in this application can be understood according to the specific meaning of the above terms in this application by those skilled in the art.

[0044] The above description is only the preferred embodiment of the present application, it should be understood that the present application is not limited to the form disclosed herein, should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein, by the above teaching or related art or knowledge. The modification and change made by the person skilled in the art without departing from the spirit and scope of the present application shall be within the protection scope of the claims of the present application.

Claims

1. A single-cylinder hydraulic cone crusher, characterized in that: The device includes an upper frame assembly, a lower frame assembly, a transmission assembly, a piston assembly, a spindle assembly, and a slip ring cover sealing assembly. The upper frame assembly is fixedly mounted on the lower frame assembly. The lower end of the spindle assembly is rotatably mounted on the lower frame assembly, and the upper end of the spindle assembly is rotatably mounted on the upper frame assembly. The transmission assembly is sealed and fixedly mounted on the lower frame assembly and is used to drive the spindle assembly to rotate. The piston assembly is sealed and fixedly mounted on the lower frame assembly and is used to drive the spindle assembly to move up and down. The slip ring cover sealing assembly is sleeved on the spindle assembly. The lower end of the slip ring cover sealing assembly is sealed and fixedly connected to the lower frame assembly, and the upper end of the slip ring cover sealing assembly is sealed and fixedly connected to the spindle assembly. The slip ring sealing assembly includes a conical sealing cover (1), a straight cylindrical sealing cover (2), a supporting sealing ring (3), a clamping ring (4), a dustproof ring (5), a dustproof sealing ring (6), a dustproof ring (7), a weighting plate (8), and a ring sealing ring (9). The lower end of the conical sealing cover (1) is fixedly mounted on the lower frame assembly, and the ring sealing ring (9) is provided between the lower frame assembly and the conical sealing cover (1). The lower end of the straight cylindrical sealing cover (2) is sealed and fixedly connected to the upper end of the conical sealing cover (1). The supporting sealing ring (3) is sealed and fixedly mounted on the inner wall of the straight cylindrical sealing cover (2). The outer wall of the straight cylindrical sealing cover (2) is sealed and fitted with the dustproof sealing ring (6). The dustproof sealing ring (6) is sealed and fixedly mounted on the dustproof ring (5). The dustproof ring (5) is connected to the clamping ring (4) by the weighting ring (5). The sealing is fixedly installed on the main spindle assembly. The main spindle assembly is provided with an inner groove. The upper end of the straight cylindrical sealing cover (2) is located in the inner groove. The support sealing ring (3) is provided with a first V-shaped surface. The dustproof ring (7) is provided with the support sealing ring (3) and the dustproof ring (7) is provided with a second V-shaped surface that cooperates with the first V-shaped surface. The weight plate (8) is fixedly installed on the dustproof ring (7). The lower frame assembly is provided with a first oil inlet channel (10). The straight cylindrical sealing cover (2) is provided with a second oil inlet channel (11). An oil delivery pipe (12) is sealed between the outlet end of the first oil inlet channel (10) and the inlet end of the second oil inlet channel (11). The outlet of the second oil inlet channel (11) is located between the inner wall of the straight cylindrical sealing cover (2) and the upper surface of the support sealing ring (3). The main shaft assembly includes a main shaft (13), a moving cone (14), a crushing wall (15), a locking ring (16), a counterweight ring (17), a slip ring (18), and an eccentric sleeve (19). The moving cone (14) is coaxially fixedly mounted on the middle part of the main shaft (13). The crushing wall (15) is coaxially fixedly mounted on the moving cone (14). The locking ring (16) is detachably mounted on the main shaft (13) and is used to prevent the crushing wall (15) from sliding on the moving cone (14). The dustproof ring (5) is connected to the clamping ring. (4) A sealing and fixed arrangement is provided on the moving cone (14), the moving cone (14) is provided with an inner groove, the slip ring (18) is coaxially arranged on the eccentric sleeve (19), the eccentric sleeve (19) is connected to the main shaft (13) through the bushing, the counterweight ring (17) is sleeved on the main shaft (13) and is fixedly connected to both the slip ring (18) and the eccentric sleeve (19), the eccentric sleeve (19) is arranged in the lower frame assembly through the eccentric bushing, and the lower end of the main shaft (13) is engaged with the piston assembly; The counterweight ring (17) includes a counterweight (52), an upper beam ring (53), a lower beam ring (54), and a support rib (55). The upper beam ring (53) is arranged parallel to the lower beam ring (54). The upper beam ring (53) and the lower beam ring (54) are fixedly connected by a plurality of evenly distributed support ribs (55). The counterweight (52) is fixedly arranged on the upper beam ring (53). The counterweight (52) is provided with a first bolt hole (56) and a second bolt hole (57) in a ring. The first bolt hole (56) is located near the edge of the counterweight (52). The lower beam ring (54) is provided with a third bolt hole (58) in a ring that mates with the second bolt hole (57). The bolt passes through the first bolt hole (56) to fix the slip ring (18) on the counterweight (52). After the bolt passes through the third bolt hole (58) and the second bolt hole (57), the eccentric sleeve (19) is fixed on the counterweight (52).

2. The single-cylinder hydraulic cone crusher according to claim 1, characterized in that: The upper frame assembly includes an upper frame (20), a grinding bowl (21), a feed hopper (22), a fixing sleeve (23), a bushing (24), a spherical bearing (25), an oil seal ring (26), a top bearing cap (27), and connecting components. The upper frame (20) is fixedly connected to the lower frame assembly. The grinding bowl (21) is fixedly disposed on the inner side of the lower side of the upper frame (20) and cooperates with the crushing wall (15). The grinding bowl (21) is fixed to the upper frame (20) through the connecting components. The feed hopper (22) is fixedly disposed on the inner wall of the upper side of the upper frame (20). The upper and lower ends are engaged with the upper end of the grinding mill wall (21). The insert (24) is coaxially sleeved on the upper end of the main shaft (13). The fixed sleeve (23) is rotatably sleeved on the insert (24). The spherical bearing (25) is provided between the fixed sleeve (23) and the insert (24). The oil seal ring (26) is provided between the lower end of the fixed sleeve (23) and the insert (24). The top bearing cover (27) is fitted and fixedly installed on the upper end of the fixed sleeve (23). The fixed sleeve (23) is fixedly connected to the upper end of the upper frame (20) through a fixed rod.

3. A single-cylinder hydraulic cone crusher according to claim 2, characterized in that: The connecting components include a pull rod (28), a washer (29), a guide tube (30), an upper spring plate (31), a lower spring plate (32), and a locking ring (33). The lower end of the pull rod (28) is connected to the grinding mill wall (21), and the upper end of the pull rod (28) passes through the upper frame (20) and is threaded into the locking ring (33). The washer (29) is sleeved on the pull rod (28) and contacts the upper frame (20). The guide tube (30) is sleeved on the pull rod (28) and is located between the washer (29) and the locking ring (33). The upper spring plate (31) and the lower spring plate (32) are both sleeved on the guide tube (30). The upper spring plate (31) is located close to the locking ring (33).

4. A single-cylinder hydraulic cone crusher according to claim 2 or 3, characterized in that: The lower frame assembly includes a lower frame (34), a connecting arm (35), a bearing sleeve (36), and a material discharge cover (37). The upper end of the lower frame (34) is sealed and fixedly connected to the upper frame (20). The lower frame (34) is fixedly connected to the bearing sleeve (36) through the connecting arm (35). The upper end of the bearing sleeve (36) is sealed and fixedly connected to the lower end of the conical sealing cover (1). The piston assembly is sealed and fixedly disposed on the lower end of the bearing sleeve (36). The inner wall of the bearing sleeve (36) is fitted with the outer wall of the eccentric bushing. The material discharge cover (37) is fixedly disposed on the connecting arm (35). The transmission assembly is sealed and fixedly disposed inside the connecting arm (35) and connected to the slip ring (18). The first oil inlet channel (10) is disposed on the bearing sleeve (36).

5. A single-cylinder hydraulic cone crusher according to claim 4, characterized in that: The piston assembly includes a hydraulic cylinder (38), a piston body (39), a wear-resistant ring (40) for bores, an upper spherical bearing (41), a lower spherical bearing (42), and a middle plate (43). The upper end of the hydraulic cylinder (38) is sealed and fixedly connected to the lower end of the bearing sleeve (36). The piston body (39) is slidably disposed in the hydraulic cylinder (38) and the lower spherical bearing (42) is coaxially fixedly disposed on its top. The upper spherical bearing (41) is coaxially fixedly disposed on the lower end of the main shaft (13). The middle plate (43) is disposed between the lower spherical bearing (42) and the upper spherical bearing (41). The wear-resistant ring (40) for bores is disposed between the hydraulic cylinder (38) and the piston body (39).

6. A single-cylinder hydraulic cone crusher according to claim 4, characterized in that: The transmission assembly includes a large bevel gear (44), a small bevel gear (45), a transmission shaft (46), an end cover (47), and a horizontal bearing (48). The large bevel gear (44) is coaxially fixed on the slip ring (18), and the small bevel gear (45) is coaxially fixed on the output end of the transmission shaft (46) and cooperates with the large bevel gear (44). The transmission shaft (46) is rotatably mounted in the horizontal bearing (48) through a bearing. The end cover (47) that cooperates with the transmission shaft (46) is fixedly mounted at the end of the horizontal bearing (48), and the horizontal bearing (48) is sealed and fixedly mounted in the connecting arm (35).

7. A single-cylinder hydraulic cone crusher according to claim 6, characterized in that: The bearing sleeve (36) is provided with a first lubrication cavity that cooperates with the large bevel gear (44), and a second lubrication cavity that cooperates with the small bevel gear (45) is provided between the bearing sleeve (36) and the connecting arm (35). The first lubrication cavity and the second lubrication cavity are connected, and an oil drain channel (49) is provided at the bottom of the second lubrication cavity.

8. A single-cylinder hydraulic cone crusher according to any one of claims 1 to 3, characterized in that: A dust-proof ring (51) is provided between the broken wall (15) and the locking ring (16).

9. A single-cylinder hydraulic cone crusher according to claim 3, characterized in that: The washer (29) is provided with a through hole (50) that mates with the conduit (30).

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