CN217578108U - Sleeve frame guiding device, sleeve frame and tower crane - Google Patents

Abstract

The utility model belongs to the technical field of hoisting equipment, concretely relates to cover frame guider, cover frame and tower crane. The stock guiding device includes: a main support; the eccentric shaft penetrates through the main support; the guide wheel is sleeved at one end of the eccentric shaft and is rotationally connected with the eccentric shaft; and the locking piece penetrates through the main support along the radial direction of the eccentric shaft, can move along the radial direction of the eccentric shaft and is used for preventing or allowing the eccentric shaft to rotate. Through the technical scheme of the utility model, improved the regulative mode and the structural configuration of leading wheel, made eccentric shaft and retaining member cross arrangement for the whole spatial configuration of cover frame guider is more reasonable and compact, is favorable to reducing the whole size at the axial direction of eccentric shaft of cover frame guider, can effectively prevent to influence the assembly at the ascending size overlength of single side, has reduced the possibility of taking place the interference with other structures after the assembly by a wide margin.

Description

Sleeve frame guiding device, sleeve frame and tower crane

Technical Field

The utility model belongs to the technical field of hoisting equipment, concretely relates to cover frame guider, cover frame and tower crane.

Background

The tower crane is one of common hoisting equipment in the field of constructional engineering, and generally adopts a structural form of combination of 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. In a common stock, guide wheels are usually provided on the inside, which can abut against the standard knots, to cooperate with the lifting process of the stock. However, due to reasons such as machining errors, the gap between the guide wheel and the standard knot is likely to be larger or smaller, so that the guide wheel of the jacket frame is blocked or the whole goods shelf is twisted and deformed, and the normal work of the jacket frame is affected.

Some current be equipped with the stock guiding mechanism of leading wheel, adopt sharp push rod or pendulum rod etc. to promote the leading wheel motion or adopt the pivot to drive the position that the leading wheel pivoted mode adjusted the leading wheel more, but the adjustment mechanism structure in the above-mentioned scheme is comparatively complicated, and occupation space is great, and the retaining member sets up unreasonablely, and space utilization is low, and the assembly back is easy to be interfered with other structures emergence, and is not high with the suitability of standard festival.

SUMMERY OF THE UTILITY MODEL

In view of this, for the structure complicacy that exists among the improvement prior art, occupation space is big, spatial layout is unreasonable, produce the scheduling problem easily, the utility model provides a set frame guider, set frame and tower crane.

The utility model discloses a first aspect provides a stock guider, include: a main support; the eccentric shaft penetrates through the main support; the guide wheel is sleeved at one end of the eccentric shaft and is rotationally connected with the eccentric shaft; and the locking piece is arranged on the main support in a penetrating way along the radial direction of the eccentric shaft and can move along the radial direction of the eccentric shaft so as to prevent or allow the eccentric shaft to rotate.

The utility model discloses beneficial effect among the above-mentioned technical scheme embodies:

the adjusting mode and the structural layout of the guide wheel are improved, the eccentric shaft and the locking piece are arranged in a crossed mode, the overall spatial layout of the sleeve frame guide device is more reasonable and compact, the overall size of the sleeve frame guide device in the axial direction of the eccentric shaft is reduced, the problem that the assembly is affected due to the fact that the size in the single direction is too long can be effectively prevented, and the possibility of interference with other structures after assembly is greatly reduced.

In one possible implementation, the retaining member includes a retaining screw; a first threaded hole matched with the locking screw is formed in the side wall of the main support, and the locking piece is in threaded fit with the first threaded hole; or the side wall of the main support is provided with a first through hole matched with the locking screw rod, the outer end of the first through hole is connected with a fixing nut, and the locking screw rod penetrates through the first through hole and the fixing nut and is in threaded fit with the fixing nut.

In a possible implementation, the eccentric shaft comprises: the first shaft body and the second shaft body are eccentrically arranged, one end of the first shaft body is connected with the second shaft body, 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 guide wheel is rotationally sleeved on the first shaft body.

In a feasible implementation mode, the part, opposite to the locking piece, of the second shaft body is provided with an abutting structure, and the abutting structure is a cylindrical structure with a polygonal cross section.

In a feasible implementation manner, one end of the second shaft body, which is far away from the first shaft body, penetrates out from the other side, which is opposite to the main support, and one end of the second shaft body, which is far away from the first shaft body, is provided with an adjusting structure; wherein, the part of the second shaft body which penetrates out from the other side opposite to the main support is provided with an external thread, and the external thread is connected with a stop nut; or a position of the second shaft body, which penetrates out from the other side opposite to the main support, is provided with a limiting hole extending along the radial direction, and a limiting pin penetrates through the limiting hole.

In one possible implementation, the guide wheel comprises: the shaft sleeve is sleeved on the first shaft body and is rotationally connected with the first shaft body; the guide wheel body is sleeved on the shaft sleeve and fixedly connected with the shaft sleeve.

In a feasible implementation manner, an end face of one end of the first shaft body, which is far away from the second shaft body, is provided with an oil duct blind hole and an oil nozzle which extend along the axial direction, and the position, which is opposite to the shaft sleeve, in the first shaft body is provided with at least one oil duct through hole which extends along the radial direction, and the oil duct through hole is communicated with the oil duct blind hole; and/or

One end of the first shaft body, which is far away from the second shaft body, is provided with a limiting structure extending along the radial direction, and the end surface of the limiting structure is provided with a positioning mark; and/or

The main support is provided with a reinforcing plate at a position opposite to the circumferential edge of the first shaft body, and the end face of one end of the first shaft body, which is close to the second shaft body, is abutted against the reinforcing plate.

In one possible implementation, the number of the eccentric shafts, the guide wheels and the locking pieces is two; the two eccentric shafts penetrate through the main support, are perpendicular to each other and are arranged in a staggered mode in the height direction; one end of each eccentric shaft is sleeved with a guide wheel; each locking piece is perpendicular to one of the eccentric shafts, and one end of each locking piece extending into the main support can be abutted against the corresponding eccentric shaft.

The second aspect of the present invention further provides a jacket frame, including: the stock guide of any one of the first to fourth aspects above.

The third aspect of the present invention further provides a tower crane, including: the holster of any of the second aspect above.

Drawings

Fig. 1 is a schematic view of a jacket frame guiding device according to an embodiment of the present invention.

Fig. 2 is a schematic view illustrating an exploded state of a jacket frame guide device according to an embodiment of the present invention.

Fig. 3 is a schematic view of a main support of a jacket guiding device according to an embodiment of the present invention.

Fig. 4 is a schematic view of another main support of the jacket frame guide device according to an embodiment of the present invention.

Fig. 5 is a schematic view of an eccentric shaft of a stock guide according to an embodiment of the present invention.

Fig. 6 is a schematic view of another eccentric shaft of a jacket bracket guiding device according to an embodiment of the present invention.

Fig. 7 is a schematic view of a set of racks according to an embodiment of the present invention.

Fig. 8 is a schematic view of a top view of a tower crane 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 up, down, left, right, front, back, top, bottom \8230;) are only used to explain the relative positional relationship between the components in a particular pose (as shown in the figures), the motion, etc., and if the particular pose is changed, the directional indicator is correspondingly changed. 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 but may alternatively include other steps or elements not expressly 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 may 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 following provides some embodiments of the jacket frame guiding device, the jacket frame and the tower crane in the technical scheme of the utility model.

In an embodiment of the first aspect of the present invention, a jacket bracket guiding device 1 is provided. As shown in fig. 1, the stock guide 1 includes a main support 11, an eccentric shaft 12, a guide wheel 13, and a locker 14.

As shown in fig. 1, the main support 11 is a mounting base of the stock guide 1. The eccentric shaft 12 is disposed through the main support 11 and penetrates through the main support 11, for example, in the example shown in fig. 1, the main support 11 is a hollow structure, and two ends of the eccentric shaft 12 respectively penetrate through two opposite sides of the main support 11, that is, two ends of the eccentric shaft 12 are located outside the main support 11. One end of the eccentric shaft 12 is sleeved with a guide wheel 13, namely the guide wheel 13 is also positioned outside the main support 11; the guide wheel 13 is rotatably connected to the eccentric shaft 12, and the guide wheel 13 can rotate relative to the eccentric shaft 12. The locking piece 14 is arranged along the radial direction of the eccentric shaft 12 and is arranged on the main support 11 in a penetrating way; the eccentric shaft 12 is provided with a locking member 14 which is movable in the radial direction of the eccentric shaft 12 so that the end of the locking member 14 penetrating the main support 11 can be brought into engagement with the eccentric shaft 12 for preventing or allowing the eccentric shaft 12 to rotate, i.e., the eccentric shaft 12 is locked when the locking member 14 is in engagement with the eccentric shaft 12, and at this time, the eccentric shaft 12 cannot rotate relative to the main support 11.

After the sleeve frame guide device 1 is assembled with the sleeve frame and the standard knot, the guide wheel 13 of the sleeve frame guide device 1 is abutted against the upright rod of the standard knot and forms rolling fit, so that when the sleeve frame performs lifting motion relative to the standard knot, the guide effect is realized by the rolling of the guide wheel 13 relative to the standard knot. Wherein, in normal use, the locking element 14 comes into engagement with the eccentric shaft 12, the eccentric shaft 12 being in a locked condition with respect to the main support 11. When the relative position between the guide wheel 13 and the standard knot needs to be adjusted, the eccentric shaft 12 can be unlocked by operating the locking piece 14, and the eccentric shaft 12 can be operated to eccentrically rotate relative to the main support 11 to drive the guide wheel 13 to move so as to realize the position adjustment operation of the guide wheel 13; when adjusted to the target position, the eccentric shaft 12 is restored to the locked state by operating the locker 14 again.

It should be noted that the technical solution in the embodiment is not limited to the example in fig. 1, and the number of the eccentric shaft 12, the guide wheel 13 and the locking member 14 may be two each as shown in fig. 1, and of course, may also be one each or another number larger than two.

Set frame guider 1 in this embodiment, through improvement and the optimization to overall structure and regulation mode, not only can carry out position control to leading wheel 13, can also make eccentric shaft 12 and retaining member 14 form the cross arrangement to prevent to take place the interference with other structures after the further reduction assembly and the possibility of interference, the assembly of being convenient for in the single direction oversize and influence the assembly, make full use of limited space, make overall structure's overall arrangement more reasonable. In addition, the guide wheel 13 is in a complete constraint state, so that the abrasion of the guide wheel 13 can be effectively reduced, and the service life can be prolonged.

In addition, the sleeve frame guide device 1 in the embodiment has a simple structure and strong universality, can be exchanged with the guide wheel 13 which is not eccentrically adjusted, can be simply modified in the guide wheel 13 device which is not eccentrically adjusted to realize eccentric adjustment, and is favorable for reducing the manufacturing cost.

Further, in some embodiments of the present invention, as shown in fig. 1 and 2, in the jacket guide 1, the locking member 14 includes a locking screw 141, the locking screw 141 is disposed along a radial direction of the eccentric shaft 12, and the locking screw 141 is disposed through a side wall of the main support 11 and forms a threaded connection with the main support 11, so as to realize axial movement by screwing in or screwing out of the locking screw 141. When the locking screw 141 is screwed into the end part to be abutted against the eccentric shaft 12, the eccentric shaft 12 is in a locking state; when the lock screw 141 is screwed out to the end to be disengaged from the eccentric shaft 12, the eccentric shaft 12 is unlocked. Specifically, the locking screw 141 may be a bolt structure as shown in fig. 1 and 2, so as to facilitate an adjusting operation (for example, a screwing operation or an unscrewing operation of the bolt structure may be performed using a tool such as a wrench or a socket).

Adopt locking screw 141 and main tributary seat 11's threaded connection in this embodiment, realize locking screw 141's axial displacement, be convenient for on the one hand carry out manual regulation operation, on the other hand can utilize screw-thread fit to fix a position locking screw 141, need not additionally to set up the setting element, is favorable to simplifying the structure.

Further, in some embodiments, retaining member 14 includes a retaining screw 141, and retaining screw 141 has a plurality of different attachment means. As shown in fig. 1 to 3, in one implementation manner of the locking screw 141, a first threaded hole 111 is provided on a side wall of the main support 11, the first threaded hole 111 is adapted to the locking screw 141, and the first threaded hole 111 and the second through hole 114 provided with the eccentric shaft 12 are respectively located on two adjacent side walls of the main support 11. The locking screw 141 extends into the main support 11 through the first threaded hole 111 and forms a threaded fit with the first threaded hole 111, so that the locking screw 141 can axially move relative to the first threaded hole 111, and one end of the locking screw 141 extending into the main support 11 can be abutted and matched with the eccentric shaft 12, so that the eccentric shaft 12 can be locked.

Further, as shown in fig. 2 and 4, in another implementation manner of the locking screw rod 141, a first through hole 112 is provided on a side wall of the main support 11, and an outer end of the first through hole 112 is provided with a fixing nut 113, where the fixing nut 113 is coaxially disposed with the first through hole 112 and is fixedly connected with the main support 11. The first through hole 112 and the fixing nut 113 are both adapted to the locking screw 141, and the first through hole 112 and the second through hole 114 provided with the eccentric shaft 12 are respectively located on two adjacent side walls of the main support 11. The locking screw rod 141 is arranged in the fixing nut 113 and the first through hole 112 in a penetrating manner and extends into the main support 11; the locking screw 141 and the fixing nut 113 form a threaded fit to realize axial movement by rotation of the locking screw 141 relative to the fixing nut 113, so that one end of the locking screw 141 extending into the main support 11 can be in abutting fit with the eccentric shaft 12 to lock the eccentric shaft 12. The engagement of the fixing nut 113 and the locking screw 141 can further increase the contact area of the screw engagement of the retracting screw, which is beneficial to increasing the supporting force for the locking screw 141, so that the stress of the locking screw 141 is more uniform.

It should be noted that the main support 11 may also be provided with the first threaded hole 111 and the fixing nut 113 at the same time, and the locking screw 141 forms a threaded fit with the fixing nut 113 and the first threaded hole 111 at the same time, which is not described herein again.

In some embodiments of the present invention, as shown in fig. 2 and 5, in the jacket bracket guide 1, the eccentric shaft 12 specifically includes a first shaft body 121 and a second shaft body 122. The diameter of the first shaft 121 is greater than that of the second shaft 122, and the first shaft 121 and the second shaft 122 are eccentrically arranged; the guide wheel 13 is rotatably connected with the first shaft body 121, so that when the second shaft body 122 rotates, the first shaft body 121 can be driven by the second shaft body 122 to rotate eccentrically, and then the guide wheel 13 is driven to move eccentrically, so that position adjustment is realized. The first shaft 121 is located outside the main support 11, the second shaft 122 is disposed on the main support 11, and a portion of the second shaft 122 is located inside the main support 11 and is matched with one end of the locking member 14 extending into the main support 11.

Further, as shown in fig. 2 and 5, an abutting structure 1221 is provided at a portion of the second shaft body 122 located inside the main holder 11, the portion being opposite to the locking member 14, and a side surface of the abutting structure 1221 is a flat surface so as to abut against an end portion of the locking member 14. Specifically, the cross section of the abutting structure 1221 is polygonal, and the entire abutting structure is a cylindrical structure, and can be directly formed on the side surface of the second shaft 122. The tip of retaining member 14 one end that stretches into in the main support 11 can form the butt with arbitrary side on the butt structure 1221, and the planar structure of butt structure 1221 can increase the area of contact with retaining member 14, makes the butt cooperation between retaining member 14 and the second axle body 122 more firm, and difficult pine takes off. It can be understood that if the locking member 14 directly abuts against the arc-shaped side surface of the eccentric shaft 12, the contact area is small, the locking is not firm, and the locking is easy to loosen.

In some embodiments of the present invention, as shown in fig. 2 and 5, in the jacket bracket guiding device 1, the second shaft 122 of the eccentric shaft 12 is far away from one end of the first shaft 121 and penetrates out from the opposite side of the main support 11. The end of the second shaft 122 that penetrates through the other side of the main support 11 is provided with an adjusting structure 1222, so that the second shaft 122 can rotate by operating the adjusting structure 1222, and further the first shaft 121 is driven to rotate eccentrically, thereby adjusting the position of the guide wheel 13. Specifically, the adjusting structure 1222 is not limited to the four-corner nut structure shown in fig. 5, but may be a hexagonal nut structure, a straight-line groove structure, a cross-groove structure, a four-corner groove structure, a hexagonal groove structure, etc., so as to cooperate with a wrench, a screwdriver, etc. to perform an adjusting operation.

Further, as shown in fig. 2 and 5, in a specific implementation manner, an external thread 1223 is provided at a portion of the second shaft 122 that penetrates through the other opposite side of the main support 11, and a stop nut 1224 is sleeved at the external thread 1223, the stop nut 1224 being in threaded connection with the second shaft 122, so that the second shaft 122 is axially limited by the contact between the stop nut 1224 and the side wall of the main support 11, which is beneficial to keeping the eccentric shaft 12 stable after being assembled. In practical applications, a stop washer may be further sleeved on the second shaft 122 between the stop nut 1224 and the main support 11 to make the stop nut 1224 fit with the external thread 1223 more firmly.

Further, as shown in fig. 2 and fig. 6, in another specific implementation manner, a position of the second shaft 122, which penetrates out from the other opposite side of the main support 11, is provided with a limiting hole 1225, the limiting hole 1225 penetrates through in the radial direction, and a limiting pin 1226 is provided in the limiting hole 1225, so as to axially limit the second shaft 122 through contact between the limiting pin 1226 and the side wall of the main support 11, which is beneficial to keeping the eccentric shaft 12 stable after assembly.

In some embodiments of the present invention, as shown in fig. 2, in the jacket guiding device 1, the guide wheel 13 specifically includes a shaft body and a guide wheel body 132. The shaft sleeve 131 is rotatably sleeved on the first shaft 121, the guide wheel body 132 is sleeved on the shaft sleeve 131, and the guide wheel body 132 is fixedly connected with the shaft sleeve 131, so that the guide wheel body 132 can rotate around the first shaft 121 together with the shaft sleeve 131, and when being matched with a standard knot, the guide wheel body 132 can roll relative to the standard knot to play a role in guiding. Specifically, the guide wheel body 132 and the shaft sleeve 131 may be fixedly connected through interference fit, but other connection manners may also be adopted.

Further, in a specific implementation manner, as shown in fig. 2 and fig. 5, on an end surface of one end of the first shaft body 121 away from the second shaft body 122, an oil passage blind hole 1211 extending in the axial direction is provided, and the oil passage blind hole 1211 extends towards the inside of the first shaft body 121. Correspondingly, an oil passage through hole 1213 extending in the radial direction is formed in the first shaft body 121 at a position opposite to the shaft sleeve 131, and the oil passage through hole 1213 is communicated with the oil passage blind hole 1211. In use, lubricating oil can be injected into the oil passage blind hole 1211 from the end of the first shaft body 121, and the lubricating oil flows to the contact surface of the first shaft body 121 and the shaft sleeve 131 through the oil passage blind hole 1211 and the oil passage through hole 1213 to lubricate the contact surface. Among them, the number of the oil passage through holes 1213 may be one or more, and for example, a plurality of oil passage through holes 1213 may be provided at intervals in the circumferential direction of the first shaft body 121 to achieve multi-point lubrication. In addition, the outer end of the oil passage blind hole 1211 is provided with an oil nozzle 1212 for connecting an oil injection pipeline; the oil filling operation may be performed into the oil passage blind hole 1211 through the oil nipple 1212, and the oil passage blind hole 1211 may be sealed by the oil nipple 1212 after the oil filling operation is completed.

Further, as shown in fig. 2 and 5, a limiting structure 1215 is disposed at an end of the first shaft 121 away from the second shaft 122. The limiting structure 1215 extends radially to limit the guide wheel axially, preventing the sleeve 131 of the guide wheel and the guide wheel body 132 from disengaging from the first shaft 121. Wherein the end face of the stop 1215 is provided with locating indicia 1216 to facilitate locating the target location during the assembly operation. Specifically, the limiting structure 1215 can be a disk-shaped structure as shown in fig. 5, but it can be other similar structures that can axially limit the guide wheel.

Further, a reinforcing plate 115 is disposed at a position of the main support 11 opposite to a circumferential edge of the first shaft 121 (i.e., at a circumferential edge of the second through hole 114), and an end surface of one end of the first shaft 121 close to the second shaft 122 abuts against the reinforcing plate 115 to further axially limit the eccentric shaft 12. It is understood that the diameter of the first shaft body 121 is greater than that of the second shaft body 122, and thus the first shaft body 121 and the second shaft body 122 are integrally formed in a stepped shaft-like structure. The second shaft body 122 penetrates into the main support 11 through the second through hole 114, and the end surface of the first shaft body 121 abuts against the reinforcing plate 115, so that the eccentric shaft 12 can be effectively prevented from moving into the main support 11 as a whole; meanwhile, the reinforcing plate 115 can further enhance the strength of the main support 11, and can effectively prevent the side wall of the main support 11 from being deformed due to too large pressure, which is beneficial to prolonging the service life.

In some embodiments of the present invention, as shown in fig. 1 and 2, in the jacket bracket guiding device 1, the number of the eccentric shafts 12, the guide wheels 13 and the locking members 14 is two, and corresponding to the two numbers, the side wall of the main support 11 is provided with the first through holes 112 and the second through holes 114 matching with the number of the eccentric shafts 12 and the locking members 14. The two eccentric shafts 12 are disposed perpendicular to each other and both penetrate the main bearing 11, and the two eccentric shafts 12 are disposed in a staggered manner in the height direction, i.e., one of the eccentric shafts 12 is located above the other eccentric shaft 12, so as to prevent mutual interference. For example, in the example shown in fig. 1, two eccentric shafts 12 respectively penetrate through the main support 11 from two adjacent side walls of the main support 11 and respectively penetrate through the opposite side walls, and in a top view, the two eccentric shafts 12 form a cross form. One end of each eccentric shaft 12 is provided with a guide wheel 13, and the guide wheel 13 is rotatably connected with the corresponding eccentric shaft 12, for example, in the example in fig. 1, the axial directions of the two guide wheels 13 are perpendicular to each other, when assembled with a standard knot, the two guide wheels 13 can respectively and rollably cooperate with two adjacent side walls of a vertical rod of the standard knot, as shown in the states of fig. 7 and 8, on one hand, the guide wheels can play a role in guiding in two directions, and on the other hand, a certain limiting role can also be played.

Accordingly, as shown in fig. 1 and 2, each eccentric shaft 12 is correspondingly provided with a locking member 14, and each locking member 14 is arranged perpendicular to the corresponding eccentric shaft 12, that is, the eccentric shaft 12 and the locking member 14 which are mutually matched are respectively arranged on two adjacent side walls of the main support 11, so that one end of the locking member 14 penetrating into the main support 11 can be abutted against the side wall of the corresponding eccentric shaft 12, so that the eccentric shafts 12 are in a locking state.

In this embodiment, make full use of main support 11 is last limited space, the arrangement to eccentric shaft 12 and retaining member 14 has been optimized, realize the one-to-one between two eccentric shafts 12 and two retaining members 14, set up two leading wheels 13 in two planes of mutually perpendicular, and every leading wheel 13 homoenergetic can realize eccentric regulation and locking, when cooperating with the standard festival, can realize the ascending direction cooperation in two directions, the direction function of set frame guider 1 has further been strengthened, can also play certain limiting displacement, the effect is better.

It should be noted that, when assembling with the jacket frame, a plurality of jacket frame guiding devices 1 may be disposed on the same plane, for example, as shown in fig. 7 and 8, one jacket frame guiding device 1 in this embodiment is disposed at each of four corner positions of the jacket frame 21, and the jacket frame 21 is guided integrally by the cooperation of the four jacket frame guiding devices 1, which is more effective. Furthermore, a plurality of sets of sleeve frame guiding devices 1 can be arranged at different heights on the sleeve frame 21 so as to realize three-dimensional sleeve frame guiding, and the stability of the sleeve frame 21 in the lifting motion process is higher.

The following is a specific embodiment of the jacket frame guiding device 1 of the present invention:

as shown in fig. 1 and 2, the stock guide 1 includes a main support 11, an eccentric shaft 12, a guide wheel 13, and a locker 14.

The main support 11 is a mounting base of the sleeve frame guide device 1; the main support 11 is embodied as a rectangular tubular structure as shown in fig. 1. The number of the eccentric shafts 12, the guide wheels 13 and the locking pieces 14 is two, and correspondingly, the side wall of the main support 11 is provided with a first through hole 112 and a second through hole 114, the number of which is matched with the number of the eccentric shafts 12 and the number of the locking pieces 14. The two eccentric shafts 12 are disposed perpendicular to each other and both penetrate the main bearing 11, and the two eccentric shafts 12 are disposed in a staggered manner in the height direction, i.e., one of the eccentric shafts 12 is located above the other eccentric shaft 12, so as to prevent mutual interference. For example, in the example shown in fig. 1, two eccentric shafts 12 respectively penetrate through the main support 11 from two adjacent side walls of the main support 11 and respectively penetrate through the opposite side walls, and in a top view, the two eccentric shafts 12 form a cross form. Correspondingly, each eccentric shaft 12 is correspondingly provided with a locking piece 14, and each locking piece 14 is arranged perpendicular to the corresponding eccentric shaft 12, that is, the mutually matched eccentric shaft 12 and locking piece 14 are respectively arranged on two adjacent side walls of the main support 11, so that one end of the locking piece 14 penetrating into the main support 11 can be abutted against the side wall of the corresponding eccentric shaft 12, and the eccentric shafts 12 are in a locking state. One end of each eccentric shaft 12 is provided with a guide wheel 13, and the guide wheel 13 is rotatably connected with the corresponding eccentric shaft 12.

As shown in fig. 2 and 5, each eccentric shaft 12 specifically includes a first shaft body 121 and a second shaft body 122. The diameter of the first shaft body 121 is larger than that of the second shaft body 122, and the first shaft body 121 and the second shaft body 122 are eccentrically arranged; the first shaft 121 is located outside the main support 11, the second shaft 122 is disposed on the main support 11 through the second through hole 114, and a part of the second shaft 122 is located inside the main support 11. The guide wheel 13 specifically includes a shaft body and a guide wheel body 132. The shaft sleeve 131 is rotatably sleeved on the first shaft 121, the guide wheel body 132 is sleeved on the shaft sleeve 131, and the guide wheel body 132 is fixedly connected with the shaft sleeve 131 through interference fit, so that the guide wheel body 132 can rotate around the first shaft 121 along with the shaft sleeve 131.

As shown in fig. 2 and 5, the second shaft body 122 of the eccentric shaft 12 is far from one end of the first shaft body 121 and penetrates out of the opposite side of the main bearing 11. Wherein, the end of the second shaft body 122, which penetrates out from the other side opposite to the main support 11, is provided with an adjusting structure 1222, and the adjusting structure 1222 is specifically a four-corner nut structure shown in fig. 5, so as to be matched with a tool, and the adjusting structure 1222 is operated to rotate the second shaft body 122, so as to drive the first shaft body 121 to perform eccentric rotation, thereby realizing position adjustment of the guide wheel body 132.

As shown in fig. 2 and 5, the part of the second shaft 122 that penetrates through the other opposite side of the main support 11 is provided with an external thread 1223, and the external thread 1223 is sleeved with a stop nut 1224, the stop nut 1224 is in threaded connection with the second shaft 122, so that the second shaft 122 is axially limited by the contact between the stop nut 1224 and the side wall of the main support 11, which is beneficial to keeping the eccentric shaft 12 stable after assembly. In practical applications, a stop washer may be further sleeved on the second shaft 122 between the stop nut 1224 and the main support 11 to make the stop nut 1224 fit with the external thread 1223 more firmly.

As shown in fig. 2 and 5, an end surface of the first shaft body 121, which is away from one end of the second shaft body 122, is provided with an oil passage blind hole 1211 extending in the axial direction, and the oil passage blind hole 1211 extends towards the inside of the first shaft body 121. Correspondingly, an oil passage through hole 1213 extending in the radial direction is formed in the first shaft body 121 at a position opposite to the shaft sleeve 131, and the oil passage through hole 1213 is communicated with the oil passage blind hole 1211. In use, lubricating oil can be injected into the oil passage blind hole 1211 from the end of the first shaft body 121, and the lubricating oil flows to the contact surface of the first shaft body 121 and the shaft sleeve 131 through the oil passage blind hole 1211 and the oil passage through hole 1213 to lubricate the contact surface. Among them, the number of the oil passage through holes 1213 may be one or more, and for example, a plurality of oil passage through holes 1213 may be provided at intervals in the circumferential direction of the first shaft body 121 to achieve multi-point lubrication. In addition, an oil nozzle 1212 is provided at an outer end of the oil passage blind hole 1211, and the oil passage blind hole 1211 may be opened or closed to close the oil passage blind hole 1211 and achieve sealing by the oil nozzle 1212 after oil injection is completed.

As shown in fig. 2 and 5, one end of the first shaft body 121 far away from the second shaft body 122 is further provided with a limiting structure 1215, and the limiting structure 1215 extends in a radial direction, specifically, the limiting structure 1215 is a disk structure shown in fig. 5, so as to limit the guide wheel 13 in an axial direction and prevent the shaft sleeve 131 of the guide wheel 13 and the guide wheel body 132 from being separated from the first shaft body 121. Wherein the end face of the stop 1215 is provided with locating indicia 1216 to facilitate locating the target location during the assembly operation. Correspondingly, a reinforcing plate 115 is arranged on the main support 11 at a position opposite to the circumferential edge of the first shaft body 121 (i.e. at the circumferential edge of the second through hole 114), and the end surface of one end of the first shaft body 121 close to the second shaft body 122 abuts against the reinforcing plate 115 to further axially limit the eccentric shaft 12; meanwhile, the reinforcing plate 115 can further enhance the strength of the main support 11, and can effectively prevent the side wall of the main support 11 from being deformed due to too large pressure, which is beneficial to prolonging the service life.

As shown in fig. 1 and 2, the locker 14 includes a locking screw 141, and the locking screw 141 is disposed in a radial direction of the eccentric shaft 12. Specifically, as shown in fig. 2 and 4, a first through hole 112 is provided on a side wall of the main support 11 adjacent to the side wall provided with the eccentric shaft 12, and a fixing nut 113 is provided at an outer end of the first through hole 112, the fixing nut 113 being coaxial with the first through hole 112 and fixedly connected to the main support 11. The first through hole 112 and the fixing nut 113 are both matched with the locking screw rod 141, and the locking screw rod 141 is arranged in the fixing nut 113 and the first through hole 112 in a penetrating manner and extends into the main support 11; the locking screw 141 and the fixing nut 113 form a threaded fit to realize axial movement by rotation of the locking screw 141 relative to the fixing nut 113, so that one end of the locking screw 141 extending into the main support 11 can be in abutting fit with the eccentric shaft 12 to lock the eccentric shaft 12. The engagement of the fixing nut 113 and the locking screw 141 can further increase the contact area of the screw engagement of the retracting screw, which is beneficial to increasing the supporting force for the locking screw 141, so that the stress of the locking screw 141 is more uniform. Among them, the locking screw 141 may be a bolt structure as shown in fig. 2.

Correspondingly, as shown in fig. 2 and 5, an abutting structure 1221 is disposed at a portion of the second shaft 122 located inside the main support 11, the portion being opposite to the locking member 14, specifically, the abutting structure 1221 has a polygonal cross section and is a cylindrical structure as a whole, and the abutting structure 1221 is a cylindrical structure with a regular polygonal cross section and machined and formed by a side surface of the second shaft 122. The tip that retaining member 14 stretched into the one end in the main support 11 can form the butt with arbitrary side on the butt structure 1221, and the planar structure of butt structure 1221 can increase the area of contact with retaining member 14, makes the butt cooperation between retaining member 14 and the second axle body 122 more firm, and difficult pine takes off.

When the guide wheel 13 needs to be adjusted in position, the locking screw 141 can be operated to separate the locking screw 141 from the second shaft body 122, so as to release the locking state of the eccentric shaft 12; then, by operating the adjusting structure 1222 at the end of the second shaft 122, the eccentric shaft 12 is rotated to drive the guide wheel 13 on the first shaft 121 to perform eccentric motion, so as to perform position adjustment. When the guide wheel 13 is adjusted to the target position, the locking screw 141 is operated again, so that the locking screw 141 is screwed into and abutted against the corresponding plane on the abutting structure 1221 of the eccentric shaft 12, so that the eccentric shaft 12 is restored to the locking state, and the adjustment of the guide wheel 13 is completed.

The stock guide device 1 in this embodiment, through improvement and optimization to overall structure and regulation mode, make full use of limited space, make overall structure's overall arrangement more reasonable, not only can carry out position control to leading wheel 13, can also prevent to influence the assembly in the oversize of single direction, further reduced the possibility of taking place to interfere with other structures after the assembly. Wherein, leading wheel 13 is in the complete restraint state, can effectively reduce the wearing and tearing of leading wheel 13, is favorable to increase of service life. In addition, the one-to-one correspondence between the two eccentric shafts 12 and the two locking pieces 14 is realized, the two guide wheels 13 are arranged in the two planes perpendicular to each other, each guide wheel 13 can realize eccentric adjustment and locking, and when the guide wheels are matched with standard joints, the guide matching in two directions can be realized, so that the guide function of the sleeve frame guide device 1 is further enhanced, and the effect is better.

In an embodiment of the second aspect of the present invention, there is further provided a sleeve holder 21, as shown in fig. 1, fig. 7 and fig. 8, the sleeve holder 21 includes the sleeve holder guiding device 1 of any one of the above first aspects.

Further, as shown in fig. 7 and 8, the jacket frame 21 may further include a plurality of vertical rods 211 and a plurality of horizontal web members 212, and the vertical rods 211 and the horizontal web members 212 are connected to form a three-dimensional frame structure. In use, the sleeve frame 21 is sleeved outside the standard knot 22, and the sleeve frame guide device 1 is arranged inside the sleeve frame 21, for example, on the horizontal web member 212 of the sleeve frame 21; the guide wheel 13 of the stock guide 1 is in contact with the upright 211 of the standard knuckle 22 and forms a rolling fit so that when the stock 21 is moved up and down relative to the standard knuckle 22 (e.g. for a lifting or lowering operation), a guiding action can be achieved by rolling of the guide wheel 13.

When there is an installation error between the jacket frame 21 and the standard knot 22, the guide wheel 13 of any one jacket frame guide device 1 can realize position adjustment through the rotation of the eccentric shaft 12, and a gap is eliminated, so that the position of the guide wheel 13 is matched with the position of the standard knot 22.

In addition, the jacket frame 21 in this embodiment also has all the beneficial effects of the jacket frame guide device 1 in any one of the above embodiments, and the description thereof is omitted.

In an embodiment of the third aspect of the present invention, there is further provided a tower crane 2, as shown in fig. 7 and 8, the tower crane 2 includes the jacket frame 21 in any one of the second aspects.

Further, as shown in fig. 7 and 8, the tower crane 2 may further include a standard knot 22. Specifically, the stock 21 and the standard knot 22 may both be rectangular frame structures. The inboard interval of following the direction of height of cover frame 21 is provided with multiunit cover frame guider 1, and every group cover frame guider 1 specifically includes four cover frame guider 1, sets up respectively in four corners of cover frame 21 inboard to make four cover frame guider 1's leading wheel 13 can form the roll cooperation with four pole settings 211 of standard festival 22 respectively. The multi-group sleeve frame guide device 1 at different heights can effectively improve the stability of the sleeve frame 21 in the lifting motion process and can prevent the sleeve frame 21 from inclining.

Further, as shown in fig. 7 and 8, two guide wheels 13 are disposed on the main support 11 of each jacket frame guide device 1, the two guide wheels 13 are perpendicular to each other, and the two guide wheels 13 are respectively in rolling fit with two adjacent side walls of the same vertical rod 211 of the standard knot 22, so that two side walls of each vertical rod 211 of the standard knot 22 facing outward are in rolling fit with one corresponding guide wheel 13, and the guiding effect is better.

In addition, the tower crane 2 in this embodiment also has all the beneficial effects of the jacket frame 21 in any 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 advantages, effects, etc. mentioned in the present invention are only examples and not limitations, and these advantages, effects, etc. should not be considered as necessarily possessed by various embodiments of the present invention. Furthermore, the specific details disclosed above are for the purpose of illustration and understanding only and are not intended to be limiting, since the invention is not to be limited to the specific details described above.

The block diagrams of devices, apparatus, devices, systems and methods presented herein are meant as illustrative examples only and are not intended to require or imply that the components must be connected, arranged, or configured 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 should also be noted that in the apparatus and devices 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 foregoing description has been presented for purposes of illustration and description. Furthermore, the description is not intended to limit embodiments of the application to the form disclosed herein. While a number of example aspects and embodiments have been discussed above, those of skill in the art will recognize certain variations, modifications, alterations, additions and sub-combinations thereof.

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 invention. 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 above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, etc. made 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;

the eccentric shaft penetrates through the main support;

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

and the locking piece is arranged on the main support in a penetrating way along the radial direction of the eccentric shaft and can move along the radial direction of the eccentric shaft, and the locking piece is used for preventing or allowing the eccentric shaft to rotate.

2. A nest frame guide according to claim 1, wherein the retaining member includes a retaining screw;

a first threaded hole matched with the locking screw is formed in the side wall of the main support, and the locking piece is in threaded fit with the first threaded hole; or a first through hole matched with the locking screw rod is formed in the side wall of the main support, a fixing nut is connected to the outer end of the first through hole, and the locking screw rod penetrates through the first through hole and the fixing nut and is in threaded fit with the fixing nut.

3. A nest guide according to claim 1,

the eccentric shaft includes:

the first shaft body and the second shaft body are eccentrically arranged, one end of the first shaft body is connected with the second shaft body, 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 guide wheel is rotatably sleeved on the first shaft body.

4. A nest guide according to claim 3,

and the part of the second shaft body opposite to the locking part is provided with a butt joint structure, and the butt joint structure is a cylindrical structure with a polygonal cross section.

5. A nest guide according to claim 3,

one end, far away from the first shaft body, of the second shaft body penetrates out of the other side, opposite to the main support, of the second shaft body, and an adjusting structure is arranged at one end, far away from the first shaft body, of the second shaft body;

the part of the second shaft body, which penetrates out of the other side opposite to the main support, is provided with an external thread, and the external thread is connected with a stop nut; or a position, which penetrates out from the other side opposite to the main support, of the second shaft body is provided with a limiting hole extending along the radial direction, and a limiting pin penetrates through the limiting hole.

6. A nest frame guide according to claim 3, wherein the guide wheel includes:

the shaft sleeve is sleeved on the first shaft body and is rotationally connected with the first shaft body;

the guide wheel body is sleeved on the shaft sleeve and is fixedly connected with the shaft sleeve.

7. A nest guide according to claim 6,

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, the position, opposite to the shaft sleeve, in the first shaft body is provided with at least one oil duct through hole which extends along the radial direction, and the oil duct through hole is communicated with the oil duct blind hole; and/or

One end of the first shaft body, which is far away from the second shaft body, is provided with a limiting structure extending along the radial direction, and the end surface of the limiting structure is provided with a positioning mark; and/or

And a reinforcing plate is arranged at the position, opposite to the circumferential edge of the first shaft body, on the main support, and the end face of one end, close to the second shaft body, of the first shaft body is abutted against the reinforcing plate.

8. A nest guide according to any one of claims 1 to 7,

the number of the eccentric shafts, the guide wheels and the locking pieces is two;

the two eccentric shafts penetrate through the main support, are perpendicular to each other and are arranged in a staggered mode in the height direction;

one end of each eccentric shaft is sleeved with one guide wheel;

each locking piece is perpendicular to one of the eccentric shafts, and one end, extending into the main support, of each locking piece can abut against the corresponding eccentric shaft.

9. A holster, comprising: a stock guide as claimed in any one of claims 1 to 8.

10. A tower crane, comprising: the nest rack of claim 9.

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