CN216129251U - Sleeve frame guiding device and tower crane - Google Patents

Abstract

The utility model relates to a jacket frame guide device and a tower crane. The stock guiding device includes: a main support; an eccentric shaft assembly penetrating the main bracket; the guide wheel is sleeved at one end of the eccentric shaft assembly and is rotationally connected with the eccentric shaft assembly; and the locking assembly is arranged at one end of the eccentric shaft assembly, which is far away from the guide wheel, and is used for preventing or allowing the eccentric shaft assembly to rotate. According to the technical scheme, the sleeve frame guide device is compact in overall structure, small in occupied space and convenient to assemble, does not need to be provided with an external push rod and other structures, and the guide wheel can be in a locking state and is high in stability, not prone to collision and damage, capable of effectively reducing abrasion and beneficial to prolonging the service life.

Description

Sleeve frame guiding device and tower crane

Technical Field

The utility model relates to the technical field of hoisting machinery, in particular to a sleeve frame guide device and a tower crane.

Background

The tower crane is one of common hoisting equipment in the building field, and generally adopts a structural form of combining a standard joint and a sleeve frame so as to realize integral lifting joint or lowering joint operation of a tower body through lifting motion of the sleeve frame relative to the standard joint. Be provided with the leading wheel with the mount butt in the pole setting of common stock, the lift process of cooperation stock because reasons such as machining error, the condition that bigger or littleer probably appears in the clearance between leading wheel and the standard festival usually, leads to the leading wheel jamming of stock or stock to take place torsional deformation easily, influences the normal work of stock. Some schemes of additionally installing an adjusting mechanism are provided in the prior art to adjust the guide wheel and the standard knot, but in the prior art, mechanisms such as a linear push rod and the like are adopted to push the guide wheel to move along the radial direction, on one hand, the structure of the adjusting mechanism occupies a large space and is inconvenient to assemble, on the other hand, the guide wheel is not in a completely-restrained state when not acting with the standard knot, the stability is poor, collision and damage are easy to occur in the transportation or assembly process, and in addition, the contact point of the guide wheel and the adjusting mechanism is often extruded and is easy to accelerate wear, so that the service life is influenced.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides a jacket frame guiding device and a tower crane to solve the above technical problems.

The utility model provides a jacket frame guiding device, comprising: a main support; an eccentric shaft assembly penetrating the main bracket; the guide wheel is sleeved at one end of the eccentric shaft assembly and is rotationally connected with the eccentric shaft assembly; and the locking assembly is arranged at one end of the eccentric shaft assembly, which is far away from the guide wheel, and is used for preventing or allowing the eccentric shaft assembly to rotate.

In a feasible implementation manner, the eccentric shaft assembly comprises a first shaft body and a second shaft body which are eccentrically arranged, and a shaft sleeve sleeved on the first shaft body, wherein the diameter of the first shaft body is larger than that of the second shaft body, the first shaft body is positioned outside the main support, and the second shaft body is partially positioned inside the main support; the locking assembly is arranged at one end of the second shaft body far away from the first shaft body; the guide wheel is sleeved on the shaft sleeve.

In one possible implementation, the locking assembly includes: the first stop washer is sleeved at one end, far away from the first shaft body, of the second shaft body, and a first lug and a second lug are respectively arranged on two sides of the first stop washer along the axial direction; the first stop ring is sleeved at one end, far away from the first shaft body, of the second shaft body, is positioned on one side, far away from the main support, of the first stop washer, and the outer side wall of the first stop ring is provided with at least one first threaded through hole extending along the radial direction and at least one first clamping groove extending along the axial direction, and the first clamping groove is clamped and matched with the first convex block; at least one stop bolt, the stop bolt is in threaded fit with the first threaded through hole and is abutted against the second shaft body, and the stop bolt is used for preventing or allowing the eccentric shaft assembly to rotate; the lateral wall of the second shaft body is provided with a second clamping groove extending along the axial direction, and the second clamping groove is matched with the second bump in a clamping mode.

In a feasible implementation manner, the end surface of one end of the second shaft body, which is far away from the first shaft body, is provided with a first rotating head; and/or the terminal surface of the leading wheel one end of keeping away from the main support is equipped with the ladder groove structure, and the one end that the second axle body was kept away from to the first axle body is equipped with the end cover, and the end cover is located the ladder groove structure.

In one possible implementation, the second shaft body includes: one end of the second inner shaft is fixedly connected with the first shaft body, and the end face of the other end of the second inner shaft is provided with a first threaded blind hole and at least one third lug which extend along the axial direction; the end face of one end, close to the second inner shaft, of the second outer shaft is provided with at least one third clamping groove, the third clamping groove is in clamping fit with the third bump, and a second threaded through hole extending along the axial direction is formed in the second outer shaft; and the adjusting screw penetrates into the second threaded through hole and the first threaded blind hole to form threaded matching.

In one possible implementation, the locking assembly includes: the second stop washer is sleeved at one end, far away from the first shaft body, of the second shaft body, and a fifth lug and a sixth lug are respectively arranged on two sides of the second stop washer along the axial direction; the second stop ring is arranged on the outer side of the second stop washer, is provided with internal threads and is in threaded fit with the adjusting screw, and the upper outer wall of the second stop ring is provided with at least one fourth clamping groove extending along the axial direction, and the fourth clamping groove is clamped with the fifth lug; a fifth clamping groove extending along the axial direction is formed in the side wall of the second outer shaft and is clamped with the sixth bump; the end, far away from the second axle body, of the first axle body is provided with an end cover, and the end face, far away from the main support, of the end cover is provided with a second rotating head.

In a feasible implementation manner, the end face of one end of the first shaft body, which is close to the second shaft body, is provided with a second threaded blind hole; the second shaft body is of a stepped shaft structure, a threaded portion is arranged at one end, close to the first shaft body, of the second shaft body, and the threaded portion is in threaded fit with the second threaded blind hole.

In a feasible implementation manner, an end face of one end, away from the second shaft body, of the first shaft body is provided with an oil duct blind hole and an oil nozzle which extend along the axial direction, and at least one oil duct through hole extending along the radial direction is arranged at a position, matched with the shaft sleeve, in the first shaft body and communicated with the oil duct blind hole.

In one possible implementation, the number of the eccentric shaft assemblies, the guide wheels and the locking assemblies is two; the two eccentric shaft assemblies penetrate through the main bracket and are arranged vertically to each other; one end of each eccentric shaft assembly is sleeved with a guide wheel, and the other end far away from the guide wheel is provided with a locking assembly.

The present invention also provides a tower crane, comprising: sleeving a frame; a jacket structure guide as defined in any one of the preceding claims provided on a horizontal web member of a jacket structure.

The utility model has the beneficial effects that:

1. the sleeve frame guide device has compact integral structure, small occupied space and convenient assembly;

2. under the conventional conditions, the guide wheel is in a locking state in the axial direction and the radial direction, the stability is strong, and the guide wheel is not easy to collide and damage in the transportation and assembly processes;

3. the guide wheel carries out clearance adjustment operation through eccentric shaft assembly, need not outside member and promotes, can effectively reduce wearing and tearing, is favorable to improving life.

Drawings

Fig. 1 is a schematic structural diagram of a jacket bracket guiding device according to an embodiment of the present invention.

Fig. 2 is an exploded view of a guiding device for a jacket frame according to an embodiment of the present invention.

Fig. 3 is a schematic view illustrating a partial structure of an eccentric shaft assembly of a stock guide according to an embodiment of the present invention.

Fig. 4 is a schematic view illustrating a partial structure of an eccentric shaft assembly of a stock guide according to an embodiment of the present invention.

Fig. 5 is a schematic diagram illustrating a locking assembly of a stock guide according to an embodiment of the present invention.

Fig. 6 is a schematic structural diagram of a first stop ring of a jacket guiding device according to an embodiment of the present invention.

Fig. 7 is a schematic structural diagram of a guide wheel of a stock guide apparatus according to an embodiment of the present invention.

Fig. 8 is an exploded view of a main frame of a jacket guiding device according to an embodiment of the present invention.

Fig. 9 is a schematic structural diagram of a jacket guiding device according to an embodiment of the present invention.

Fig. 10 is an exploded view of a guiding device for a jacket frame according to an embodiment of the present invention.

Fig. 11 is a schematic structural diagram of a jacket bracket guiding device according to an embodiment of the present invention.

Fig. 12 is an exploded view of a guiding device for a jacket frame according to an embodiment of the present invention.

Fig. 13 is an exploded view of an eccentric shaft assembly of a carriage guide according to an embodiment of the present invention.

Fig. 14 is a schematic view illustrating a partial structure of an eccentric shaft assembly of a stock guide according to an embodiment of the present invention.

Fig. 15 is a schematic view illustrating a partial structure of an eccentric shaft assembly of a stock guide according to an embodiment of the present invention.

Fig. 16 is a partial schematic structural view of an eccentric shaft assembly of a stock guide according to an embodiment of the present invention.

Fig. 17 is a partial schematic structural view of an eccentric shaft assembly of a stock guide according to an embodiment of the present invention.

Fig. 18 is a schematic structural view of a second outer shaft of a stock guide apparatus according to an embodiment of the present invention.

Fig. 19 is a schematic structural view of a second outer shaft of a stock guide apparatus according to an embodiment of the present invention.

Fig. 20 is a schematic structural view of a second outer shaft of a stock guide apparatus according to an embodiment of the present invention.

Fig. 21 is a schematic view of a locking assembly of a stock guide according to an embodiment of the utility model.

Fig. 22 is a schematic structural diagram of a jacket guiding device according to an embodiment of the present invention.

Fig. 23 is an exploded view of a holster guide device according to an embodiment of the present invention.

Fig. 24 is an exploded view of an eccentric shaft assembly of a carriage guide according to an embodiment of the present invention.

Fig. 25 is a schematic view illustrating a jacket guide device and a tower body in an assembled state according to an embodiment of the present invention.

Detailed Description

In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specifically limited otherwise. All directional indicators in the embodiments of the present application (such as upper, lower, left, right, front, rear, top, bottom … …) are only used to explain the relative positional relationship between the components, the movement, etc. in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

Furthermore, reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The utility model provides a sleeve frame guide device which can be applied to a sleeve frame of a tower crane.

As shown in fig. 1 and 2, the jacket bracket guide apparatus includes a main bracket 1, an eccentric shaft assembly 2, a guide wheel 3, and a locking assembly 23. Eccentric shaft subassembly 2 runs through main support 1, for example wears to locate in main support 1 by the side of main support 1, and eccentric shaft subassembly 2's both ends are worn out by two relative lateral walls on main support 1 respectively, and eccentric shaft subassembly 2 both ends are located outside main support 1 promptly. One end of the eccentric shaft component 2 is sleeved with a guide wheel 3, namely the guide wheel 3 is also positioned outside the main bracket 1; the guide wheel 3 is rotatably connected to the eccentric shaft assembly 2 and can rotate relative to the eccentric shaft assembly 2. The locking assembly 23 is provided at the end of the eccentric shaft assembly 2 remote from the idler wheel 3.

Wherein the locking assembly 23 is used to prevent or allow the eccentric shaft assembly 2 from rotating so that the eccentric shaft assembly 2 can be locked or unlocked with respect to the primary support 1. When eccentric shaft assembly 2 was in the locking state, eccentric shaft assembly 2 was unable to rotate, was in when unclamping the state at eccentric shaft assembly 2, and eccentric shaft assembly 2 can rotate for main support 1, and then drives leading wheel 3 and carries out eccentric rotation for main support 1 to make leading wheel 3 take place to remove on radial direction.

When the jacket frame guide device is assembled on the jacket frame of the tower crane, the gap between the guide wheel 3 and the main upright rod can be adjusted according to the difference of the distance between the jacket frame upright rod and the main upright rod of the standard knot, so that the guide wheel 3 is always abutted against the main upright rod to be matched with the lifting motion of the jacket frame, the surface of the main upright rod rolls, and the jacket frame is guided.

The sleeve frame guide device in the embodiment has a compact integral structure, does not need to be provided with an external push rod and other structures, occupies a small space, is convenient to assemble, can be in a locking state due to the guide wheel 3, is strong in stability, is not easy to collide and damage, can effectively reduce abrasion, and is favorable for prolonging the service life.

It should be noted that the number of the eccentric shaft assemblies 2, the guide wheels 3 and the locking assemblies 23 in the sleeve frame guiding device of the present invention is not limited to the example given in this embodiment, a plurality of eccentric shaft assemblies 2 and a plurality of guide wheels 3 may be provided on the same main frame 1, and one locking assembly 23 is provided corresponding to each eccentric shaft assembly 2, for example, the eccentric shaft assemblies 2 and the guide wheels 3 may be provided on adjacent side walls of the main frame 1, and of course, a plurality of eccentric shaft assemblies 2 and a plurality of guide wheels 3 may also be provided at intervals on the same side arm of the main frame 1.

In some embodiments of the present invention, as shown in fig. 2, 3 and 4, the eccentric shaft assembly 2 includes a first shaft body 211, a second shaft body 212 and a bushing 22. Specifically, the first shaft body 211 and the second shaft body 212 are connected in sequence, the diameter of the first shaft body 211 is larger than that of the second shaft body 212, and the first shaft body 211 and the second shaft body 212 are eccentrically arranged in a radial direction, that is, a central axis of the first shaft body 211 is parallel to but not coincident with a central axis of the second shaft body 212. The first shaft body 211 is positioned outside the main support 1, the shaft sleeve 22 is sleeved on the first shaft body 211 and is rotatably connected with the first shaft body 211, and the guide wheel 3 is sleeved on the shaft sleeve 22 and rotates together with the shaft sleeve 22; the second shaft body 212 penetrates the main support 1, that is, the second shaft body 212 is partially located in the main support, and one end of the second shaft body 212, which is far away from the first shaft body 211, extends out from the opposite side of the main support 1. The locking assembly 23 is engaged with an end of the second shaft body 212 remote from the first shaft body 211, and the eccentric shaft assembly 2 can be locked or unlocked by operating the locking assembly 23. When the eccentric shaft assembly 2 is loosened, the eccentric shaft assembly 2 can rotate relative to the main support 1 through operation, and then the first shaft body 211 drives the guide wheel 3 to perform eccentric motion, so that the gap adjusting operation of the guide wheel 3 is realized. The sleeve 22 may be replaced by a bearing.

In some embodiments of the present invention, as shown in fig. 3, 5 and 6, the locking assembly 23 specifically includes a first stop washer 231, a first stop ring 232 and a stop bolt 233. The first stop washer 231 and the first stop ring 232 are both sleeved on one end of the second shaft body 212 far away from the first shaft body 211, and the first stop ring 232 is located on one side of the first stop washer 231 far away from the main bracket 1. A first protruding block 2311 and a second protruding block 2312 are respectively arranged on two sides of the first stop washer 231, namely, the first protruding block 2311 is arranged on one side of the first stop washer 231 facing the first stop ring 232, and the second protruding block 2312 is arranged on one side of the first stop washer 231 facing the main bracket 1; correspondingly, at least one first clamping groove 2322 extending axially is arranged on the outer side wall of the first stop ring 232, a second clamping groove 2121 extending axially is arranged on the side wall of the second shaft body 212, the first clamping groove 2322 is in clamping fit with the first protrusion 2311, and the second clamping groove 2121 is in clamping fit with the second protrusion 2312, so that the second shaft body 212, the first stop washer 231 and the first stop ring 232 are combined into a whole, and the second shaft body 212 cannot rotate independently. The first engaging grooves 2322 may be a groove-shaped structure penetrating in the axial direction as shown in fig. 5 and fig. 6, and the number of the first engaging grooves may be 4, and the first engaging grooves may be uniformly arranged along the circumferential direction, but may also be in other numbers and arrangements. In addition, a first threaded through hole 2321 extending in the radial direction is formed in the first clamping groove 2322, the stop bolt 233 is engaged with the first threaded through hole 2321, and the stop bolt 233 extends into the first stop ring 232 from the first threaded through hole 2321 and abuts against the side wall of the second shaft body 212, so that the locking or unlocking of the eccentric shaft assembly 2 is achieved by screwing or unscrewing the stop bolt 233. The number of the stop bolts 233 may be one or more, and is specifically matched with the number of the first threaded through holes 2321. An undercut 2122 may be formed on the second shaft 212 at a position corresponding to the first stop washer 231 to facilitate installation of the first stop washer 231.

Further, as shown in fig. 3 and 4, a first rotating head 2123 is disposed on an end surface of the second shaft body 212 at an end far from the first shaft body 211 to facilitate an adjusting operation. For example, the first rotating head 2123 may be a regular hexagon structure as shown in fig. 3 and 4 to facilitate the rotation operation with a tool such as a wrench, but the first rotating head 2123 may also be a square structure or other structures to facilitate the engagement with the tool.

Further, as shown in fig. 4 and 7, an end cover 2111 is disposed at a first section of the first shaft body 211 away from the second shaft body 212, correspondingly, a stepped groove structure 31 is disposed at an end of the guide wheel 3 away from the main bracket 1 (i.e., an end of the guide wheel 3 close to the end cover 2111), and a shape and a size of the stepped groove structure 31 match with the end cover 2111, after assembly, the end cover 2111 may extend into the stepped groove structure 31, so as to implement a hidden design, further reduce a size of the overall structure in an axial direction, and facilitate assembly.

Further, as shown in fig. 8, the main support 1 may be a hollow structure, and the cross-sectional shape of the main support 1 is rectangular. Two opposite side walls of the main bracket 1 are respectively provided with a mounting hole 11 to be matched with the eccentric shaft assembly 2. Wherein, on the side wall corresponding to the guide wheel 3, a boss structure 12 is provided at the edge of the mounting hole 11, and the boss structure 12 may be a circular structure as shown in fig. 8, to increase the connection strength after the eccentric shaft assembly 2 is assembled.

Further, as shown in fig. 8, 9 and 10, the main stand 1 is provided with mounting holes 11 on four side walls, and two mounting holes 11 on two opposite side walls are correspondingly provided. The number of the eccentric shaft assemblies 2 is two, the number of the guide wheels 3 and the number of the locking assemblies 23 are two, one eccentric shaft assembly 2 is arranged in the mounting holes 11 on the two opposite side walls of the main support 1 in a penetrating manner, the other eccentric shaft assembly 2 is arranged in the mounting holes 11 on the other two opposite side walls of the main support 1 in a penetrating manner, and one guide wheel 3 is sleeved on the first shaft body 211 of each eccentric shaft assembly 2. Specifically, the two eccentric shaft assemblies 2 may be disposed perpendicular to each other and spaced apart in the height direction, and the positions of the mounting holes 11 are adapted thereto. When the jacket frame guider assembles on tower crane's jacket frame, two leading wheels 3 can be simultaneously with two adjacent lateral walls butts of the main upright post of standard festival to play the guide effect to the jacket frame on two directions, and two leading wheels 3 all can carry out clearance adjustment operation, are favorable to further strengthening the stability of jacket frame lift in-process.

In some embodiments of the present invention, as shown in fig. 11, 12 and 13, the second shaft body 212 may also be a split structure. The second shaft body 212 specifically includes a second inner shaft 213, a second outer shaft 214, and an adjusting screw 236, and the second inner shaft 213 and the second outer shaft 214 are independent from each other. One end of the second inner shaft 213 close to the first shaft 211 is fixedly connected (e.g., welded and fixed) to the first shaft 211, and the second inner shaft 213 and the first shaft 211 are in an eccentric arrangement state; an end surface of one end of the second inner shaft 213, which is far away from the first shaft body 211, is provided with at least one third bump 2132. Correspondingly, at least one third locking groove 2141 is formed in an end surface of the second outer shaft 214 near one end of the second inner shaft 213, the shape and size of the third locking groove 2141 are matched with the third protrusion 2132, and the third locking groove 2141 can be in locking fit with the third protrusion 2132. As shown in fig. 13 and fig. 16 to fig. 20, an end surface of the second inner shaft 213 at the end far from the first shaft body 211 is further provided with a first blind threaded hole 2131 extending in the axial direction, correspondingly, a second through threaded hole 2142 extending in the axial direction is provided in the second outer shaft 214, and the adjusting screw 236 penetrates the second through threaded hole 2142 and the first through threaded hole 2321 from the end far from the second inner shaft 213 of the second outer shaft 214, and forms a threaded fit to combine with the second inner shaft 213 and the second outer shaft 214 to form the second shaft body 212, as shown in fig. 14 and fig. 15. The number of the third protrusions 2132 may be one or more, and when the number of the third protrusions 2132 is multiple, the third protrusions 2132 may be uniformly arranged along the circumferential direction, for example, four third protrusions 2132 shown in fig. 16 and 17, and any two adjacent third protrusions 2132 are arranged vertically, and the whole is arranged in a crisscross manner. As shown in fig. 18, 19 and 20, the number of the third fastening grooves 2141 matches the third protrusions 2132, and the arrangement is the same as the third protrusions 2132.

Further, as shown in fig. 13 and 21, the locking assembly 23 specifically includes a second stop washer 235 and a second stop ring 237. The second stop washer 235 is sleeved on the second outer shaft 214, and the second stop washer 235 is provided with a fifth convex block 2351 at one side far away from the main bracket 1 and a sixth convex block 2352 at one side facing the main bracket 1 along the two axial sides; the second stop ring 237 is located outside the second stop washer 235 and is in threaded fit with the adjusting bolt, a fourth locking groove 2371 is formed in the second stop ring 237, and the fourth locking groove 2371 extends in the axial direction, for example, a groove-shaped structure penetrating in the axial direction is shown in fig. 21, the number of the fourth locking grooves 2371 may be one or more, and when the number of the fourth locking grooves 2371 is multiple, the fourth locking grooves 2371 may be uniformly arranged in the circumferential direction; a fifth locking groove 2143 is formed on a side wall of the second outer shaft 214, as shown in fig. 20, the fifth locking groove 2143 extends in the axial direction, and a relief groove 2122 is further formed on the side wall of the second outer shaft 214 to facilitate the installation of the second stop washer 235. The fourth clamping groove 2371 is in clamping fit with the fifth projection 2351, the fifth clamping groove 2143 is in clamping fit with the sixth projection 2352, and the eccentric shaft assembly 2 can be locked or loosened by operating the adjusting bolt, so that the eccentric adjustment operation of the guide wheel 3 is performed when the eccentric shaft assembly 2 is in a loosened state. As shown in fig. 13 to 15, an end cap 2111 is disposed at an end of the first shaft 211 away from the second shaft 212, a second rotating head 2112 is disposed on an outer end surface of the end cap 2111, the second rotating head 2112 may be a rectangular structure shown in fig. 14 and 15, so as to be matched with a tool such as a wrench, and of course, the second rotating head 2112 may also be a regular hexagonal structure or other shape structure convenient for being matched with a tool.

Further, as shown in fig. 8, the main support 1 is embodied in a hollow structure, and the sectional shape of the main support 1 is rectangular. Two opposite side walls of the main bracket 1 are respectively provided with a mounting hole 11 to be matched with the eccentric shaft assembly 2. Wherein, on the side wall corresponding to the guide wheel 3, a boss structure 12 is provided at the edge of the mounting hole 11, and the boss structure 12 may be a circular structure as shown in fig. 8, to increase the connection strength after the eccentric shaft assembly 2 is assembled.

Further, as shown in fig. 22 and 23, the four side walls of the main stand 1 are provided with mounting holes 11, and two mounting holes 11 on two opposite side walls are correspondingly provided. The number of the eccentric shaft assemblies 2 is two, the number of the guide wheels 3 and the number of the locking assemblies 23 are two, one eccentric shaft assembly 2 is arranged in the mounting holes 11 on the two opposite side walls of the main support 1 in a penetrating manner, the other eccentric shaft assembly 2 is arranged in the mounting holes 11 on the other two opposite side walls of the main support 1 in a penetrating manner, and one guide wheel 3 is sleeved on the first shaft body 211 of each eccentric shaft assembly 2. Specifically, the two eccentric shaft assemblies 2 may be disposed perpendicular to each other and spaced apart in the height direction, and the positions of the mounting holes 11 are adapted thereto. When the jacket frame guider assembles on tower crane's jacket frame, two leading wheels 3 can be simultaneously with two adjacent lateral walls butts of the main upright post of standard festival to play the guide effect to the jacket frame on two directions, and two leading wheels 3 all can carry out clearance adjustment operation, are favorable to further strengthening the stability of jacket frame lift in-process.

In some embodiments of the present invention, as shown in fig. 24, the first shaft body 211 and the second shaft body 212 of the eccentric shaft assembly 2 may also be separate structures. Specifically, a second blind threaded hole 2113 is formed in the end surface of the first shaft body 211, which is close to one end of the first shaft body 211, and the second blind threaded hole 2113 is eccentric to the central axis of the first shaft body 211; the second shaft body 212 is integrally of a stepped shaft structure, a threaded portion 2124 is arranged at one end, close to the first shaft body 211, of the second shaft body 212, the threaded portion 2124 is provided with external threads, and the threaded portion 2124 is in threaded fit with the second threaded blind hole 2113, so that the first shaft body 211 and the second shaft body 212 are integrally connected, and the second shaft body 212 and the first shaft body 211 are eccentrically arranged. The end surface of the second shaft 212 remote from the first shaft 211 is provided with a third rotating head 2125, such as a right hexagonal structure shown in fig. 24, for facilitating the screwing or unscrewing operation by cooperating with a tool such as a wrench. The second shaft body 212 passes through the main support 1 and is locked by the locking assembly 23 at one end of the second shaft body 212 far away from the first shaft body 211.

In some embodiments of the present invention, as shown in fig. 2 to 4, an end surface of one end of the first shaft body 211, which is far away from the second shaft body 212, is provided with an oil passage blind hole 2114 and an oil nozzle 2115 which extend along an axial direction, an oil passage through hole 2116 which extends along a radial direction is further provided in the first shaft body 211, the oil passage through hole 2116 is provided corresponding to the position of the shaft sleeve 22, and the oil passage through hole 2116 is communicated with the oil passage blind hole 2114, so as to form an internal oil passage; the oil nozzle 2115 is used for connecting an external oil injection device, lubricating oil can be injected into the internal oil passage through the oil nozzle 2115, and the lubricating oil flows to the matching surface of the first shaft body 211 and the shaft sleeve 22 through the oil passage blind hole 2114 and the oil passage through hole 2116, so that lubrication is realized. In addition, the eccentric shaft assembly 2 shown in fig. 13 to 15 is also provided with the oil passage blind hole 2114, the oil nipple 2115 and the oil passage through hole 2116 as in the present embodiment, and can also perform the function of oil lubrication, and the description thereof is omitted.

In one embodiment of the present invention, a tower crane is provided, as shown in fig. 22 and 25, the tower crane comprising a jacket frame 42 and at least one jacket frame guide of any of the above embodiments, the jacket frame guide being provided on a horizontal web member 422 of the jacket frame 42.

Specifically, the standard joint 41 of the tower crane is arranged along the height direction, and the sleeve frame 42 is sleeved outside the standard joint 41; the sleeve frame 42 is movably connected with the standard joint 41, and the sleeve frame 42 can perform lifting movement relative to the standard joint 41 so as to realize integral lifting or lowering operation of the tower body. The transition joint 43 of the tower crane is arranged at the top of the sleeve frame 42, and the hoisting mechanism 44 of the tower crane is arranged on the transition joint 43 and is used for hoisting operation.

Wherein, on each horizontal web member 422 of the jacket frame 42, at least one jacket frame guide device is provided; the jacket frame guide device is fixedly connected with the jacket frame upright rod 421, for example, by welding or by a connecting piece; the leading wheel 3 of the stock guider corresponds to the main upright 411 of the standard joint 41, and the leading wheel 3 is abutted against the side wall of the main upright 411.

When the stock 42 performs the lifting movement, the guide wheel 3 rolls on the side wall of the main upright 411 to guide the stock 42. Wherein, can be according to the interval variation in size between cover frame pole setting 421 and the main pole setting 411, the eccentric rotation through eccentric shaft assembly 2 drives leading wheel 3 and carries out eccentric rotation, adjusts the operation to leading wheel 3 to the clearance between adjustment leading wheel 3 and the main pole setting 411 makes leading wheel 3 offset with main pole setting 411 all the time, with the stability that improves cover frame 42.

It should be noted that each of the jacket frame uprights 421 may be provided with one or more jacket frame guides, and each of the jacket frame guides may also be provided with one or more guide wheels 3.

For example, as shown in fig. 25, the standard knot 41 is formed by connecting four main vertical rods 411, two adjacent main vertical rods 411 are connected by a main web member 412, and a rectangular structure is formed in the height direction, and correspondingly, the jacket 42 is also formed by connecting four jacket vertical rods 421, and two adjacent jacket vertical rods 421 are connected by a horizontal web member 422. The main upright 411 and the jacket frame upright 421 are rod bodies with rectangular cross sections. At same high position, be connected with a set of frame guider on every horizontal web member 422, and respectively be equipped with an eccentric shaft subassembly 2 and a leading wheel 3 on two adjacent lateral walls of every set of frame guider's main support 1, the central axis of two leading wheels 3 sets up perpendicularly, two leading wheels 3 of every set of frame guider respectively with main pole setting 411 on two adjacent lateral walls that correspond offset, in order to go up and down the in-process at set frame 42, can play the guide effect simultaneously on mutually perpendicular's two directions. Further, in the height direction, a plurality of layers of the jacket frame guiding devices can be arranged at certain intervals, and each layer is provided with four jacket frame guiding devices, so that the stability of the jacket frame 42 is further improved. It should be noted that the connection positions of the four jacket frame guides are not limited to the example shown in fig. 25 of the present embodiment, and the four jacket frame guides may be connected to two horizontal web members 422 of the jacket frame 42, which are opposite to each other, or connected to three horizontal web members 422 of the jacket frame 42, which are adjacent to each other in sequence.

In addition, the tower crane in this embodiment also has all the beneficial effects of the jacket frame guide device in any one of the above embodiments, which are not described herein again.

The basic principles of the present invention have been described above with reference to specific embodiments, but it should be noted that the advantages, effects, etc. mentioned in the present invention are only examples and are not limiting, and the advantages, effects, etc. must not be considered to be possessed by various embodiments of the present invention. Furthermore, the foregoing disclosure of specific details is for the purpose of illustration and description and is not intended to be limiting, since the utility model is not limited to the specific details described above.

The block diagrams of devices, apparatuses, systems involved in the present invention are only given as illustrative examples and are not intended to require or imply that the connections, arrangements, configurations, etc. must be made in the manner shown in the block diagrams. These devices, apparatuses, devices, systems may be connected, arranged, configured in any manner, as will be appreciated by those skilled in the art. Words such as "including," "comprising," "having," and the like are open-ended words that mean "including, but not limited to," and are used interchangeably therewith. The words "or" and "as used herein mean, and are used interchangeably with, the word" and/or, "unless the context clearly dictates otherwise. The word "such as" is used herein to mean, and is used interchangeably with, the phrase "such as but not limited to".

It is further noted that in the apparatus and device of the present invention, the components may be disassembled and/or reassembled. These decompositions and/or recombinations are to be regarded as equivalents of the present invention.

The previous description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these aspects will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other aspects without departing from the scope of the utility model. Thus, the present invention is not intended to be limited to the aspects shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalents and the like within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A stock guide, comprising:

a main support;

an eccentric shaft assembly penetrating through the main bracket;

the guide wheel is sleeved at one end of the eccentric shaft assembly and is in rotating connection with the eccentric shaft assembly;

and the locking assembly is arranged at one end of the eccentric shaft assembly, which is far away from the guide wheel, and is used for preventing or allowing the eccentric shaft assembly to rotate.

2. A nest guide according to claim 1,

the eccentric shaft assembly comprises a first shaft body and a second shaft body which are eccentrically arranged, and a shaft sleeve sleeved on the first shaft body, wherein the diameter of the first shaft body is larger than that of the second shaft body, the first shaft body is positioned outside the main support, and the second shaft body is partially positioned inside the main support;

the locking assembly is arranged at one end of the second shaft body, which is far away from the first shaft body;

the guide wheel is sleeved on the shaft sleeve.

3. A stock guide as set forth in claim 2, wherein said locking assembly includes:

the first stop washer is sleeved at one end, far away from the first shaft body, of the second shaft body, and a first lug and a second lug are respectively arranged on two sides of the first stop washer along the axial direction;

the first stop ring is sleeved at one end, far away from the first shaft body, of the second shaft body, is positioned on one side, far away from the main support, of the first stop washer, and is provided with at least one first threaded through hole extending along the radial direction and at least one first clamping groove extending along the axial direction on the outer side wall, and the first clamping groove is in clamping fit with the first bump;

at least one stop bolt threadedly engaged with the first threaded through bore and abutting the second shaft body, the stop bolt for preventing or allowing rotation of the eccentric shaft assembly;

the lateral wall of the second shaft body is provided with a second clamping groove extending along the axial direction, and the second clamping groove is in clamping fit with the second bump.

4. A nest guide according to claim 3,

a first rotating head is arranged on the end face of one end, away from the first shaft body, of the second shaft body; and/or

The leading wheel is kept away from the terminal surface of the one end of main support is equipped with the ladder groove structure, the primary shaft body is kept away from the one end of the secondary shaft body is equipped with the end cover, the end cover is located in the ladder groove structure.

5. A nest guide according to claim 2, wherein the second shaft body includes

One end of the second inner shaft is fixedly connected with the first shaft body, and the end face of the other end of the second inner shaft is provided with a first threaded blind hole and at least one third lug which extend along the axial direction;

the end face of one end, close to the second inner shaft, of the second outer shaft is provided with at least one third clamping groove, the third clamping groove is clamped and matched with the third bump, and a second threaded through hole extending along the axial direction is formed in the second outer shaft;

and the adjusting screw penetrates into the second threaded through hole and the first threaded blind hole to form threaded matching.

6. A nest frame guide according to claim 5, wherein the locking assembly includes:

the second stop washer is sleeved at one end, far away from the first shaft body, of the second shaft body, and a fifth lug and a sixth lug are respectively arranged on two sides of the second stop washer along the axial direction;

the second stop ring is arranged on the outer side of the second stop washer, is provided with an internal thread and is in threaded fit with the adjusting screw, and the upper outer wall of the second stop ring is provided with at least one fourth clamping groove extending along the axial direction, and the fourth clamping groove is clamped with the fifth lug;

a fifth clamping groove extending along the axial direction is formed in the side wall of the second outer shaft and is clamped with the sixth bump;

an end cover is arranged at one end, far away from the second shaft body, of the first shaft body, and a second rotating head is arranged on the end face, far away from the main support, of the end cover.

7. A nest guide according to claim 2,

a second threaded blind hole is formed in the end face of one end, close to the second shaft body, of the first shaft body;

the second shaft body is of a stepped shaft structure, a threaded portion is arranged at one end, close to the first shaft body, of the second shaft body, and the threaded portion is in threaded fit with the second threaded blind hole.

8. A nest guide according to claim 2,

the end face of one end, far away from the second shaft body, of the first shaft body is provided with an oil duct blind hole and an oil nozzle which extend along the axial direction, at least one oil duct through hole which extends along the radial direction is arranged at the position, matched with the shaft sleeve, in the first shaft body, and the oil duct through hole is communicated with the oil duct blind hole.

9. A nest guide according to any one of claims 1-8,

the number of the eccentric shaft assemblies, the guide wheels and the locking assemblies is two;

the two eccentric shaft assemblies penetrate through the main bracket and are arranged vertically to each other;

one end of each eccentric shaft assembly is sleeved with one guide wheel, and the other end of each eccentric shaft assembly, which is far away from the guide wheel, is provided with one locking assembly.

10. A tower crane, comprising:

sleeving a frame;

a jacket structure guide as claimed in any one of claims 1 to 9 provided on a horizontal web of the jacket structure.

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