CN215287725U - Movable pulley block assembling device of bridge crane - Google Patents
Movable pulley block assembling device of bridge crane Download PDFInfo
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- CN215287725U CN215287725U CN202121867363.7U CN202121867363U CN215287725U CN 215287725 U CN215287725 U CN 215287725U CN 202121867363 U CN202121867363 U CN 202121867363U CN 215287725 U CN215287725 U CN 215287725U
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Abstract
The utility model discloses a bridge crane running block assembly quality can two sets of loose pulley assembly of suit at least on the pre-installation cover, through pulley distance ring axial positioning between two adjacent pulleys, through bearing spacer ring axial positioning between two adjacent bearings. When assembling the pulley, install loose pulley assembly and pulley distance ring, bearing spacer ring on the pre-assembly cover in advance, fix the one end at the pulley shaft with the toper cover, the tip of pre-assembly cover and toper cover leans on each other in top, promote loose pulley assembly to the toper cover removal, the one end surface of toper cover is along the axial convergent, play the effect of direction when loose pulley assembly etc. remove convergent department, loose pulley assembly continues to move along the convergent face, the biggest department of external diameter of toper cover equals with the periphery diameter of pulley shaft, can transfer to the pulley shaft accurately smoothly, thereby pass the pulley in batches, the bearing, pulley distance ring and bearing spacer ring, tradition greatly promotes the installation effectiveness in traditional hoist and mount one by one.
Description
Technical Field
The utility model relates to a lifting means field further relates to a bridge crane movable pulley assembly quality.
Background
The bridge crane is also called a crown block and is hoisting equipment which is transversely arranged above a workshop, a warehouse and a stock yard to hoist materials; the two ends of which are seated on tall cement or metal brackets. The bridge of the bridge crane runs longitudinally along the rails laid on the brackets on the two sides, and the trolley runs transversely along the direction of the bridge.
The crane of steel mill is long-term in work under abominable operating mode such as high temperature, heavy load, high frequency, the movable pulley must be changed regularly (48 months/time), the change mode that adopts at present is hoist and mount new pulley one by one, install the pulley on the pulley shaft one by one, because need install bearing spacer ring and pulley distance ring between the pulley, bearing spacer ring, pulley distance ring these structures all need install one by one, repacking difficulty when causing the change pulley, it is consuming time longer, workshop down time long influence efficiency.
For those skilled in the art, how to replace the movable pulley quickly and conveniently is a technical problem to be solved at present.
SUMMERY OF THE UTILITY MODEL
The utility model provides a bridge crane running block assembly quality can assemble the pulley in batches, improves the efficiency of assembly, and concrete scheme is as follows:
a movable pulley block assembling device for a bridge crane comprises a pre-assembling sleeve and a conical sleeve, wherein a bearing is arranged on an inner ring of a pulley to form a pulley assembly, and at least two groups of pulley assemblies can be sleeved on the pre-assembling sleeve;
two adjacent pulleys are axially positioned through a pulley distance ring, and two adjacent bearings are axially positioned through a bearing isolation ring;
the conical sleeve is detachably fixed at one end of the pulley shaft, the outer surface of one end of the conical sleeve is gradually reduced along the axial direction, and the maximum outer diameter of the conical sleeve is equal to the outer diameter of the pulley shaft;
the ends of the pre-assembled sleeve and the conical sleeve can abut against each other to transfer the pulley, the bearing, the pulley distance ring and the bearing isolation ring in batch.
Optionally, two ends of the pre-assembled sleeve are respectively provided with a tapered surface; the outer diameter of the end part of the pre-assembled sleeve is larger than or equal to that of the end part of the conical sleeve.
Optionally, the tapered sleeve is threadedly connected to the pulley shaft.
Optionally, the conical sleeve comprises a conical section and a cylindrical section, and an inner wall of the cylindrical section is provided with an internal thread; the tail end of the cylindrical section can be matched with the step surface of the pulley shaft to abut against the step surface.
Optionally, the taper of the tapered section is 1: 10.
Optionally, the maximum outer diameter of the pre-assembling sleeve is 1-10 mm smaller than the inner diameter of the inner ring of the bearing.
Optionally, the pre-assembly sleeve is a cylinder with a hollow through inner part, and a hanging ring for binding is arranged on the pre-assembly sleeve.
The utility model provides a movable pulley block assembling device of a bridge crane, wherein bearings are arranged on the inner rings of pulleys to form pulley assemblies, at least two groups of pulley assemblies can be sleeved on a pre-assembling sleeve, two adjacent pulleys are axially positioned through a pulley distance ring, and two adjacent bearings are axially positioned through a bearing isolation ring; the two sets of sheave assemblies are isolated from each other. When the pulley is assembled, a pulley assembly, a pulley distance ring and a bearing isolating ring are installed on the pre-assembling sleeve in advance, the conical sleeve is fixed at one end of the pulley shaft, the end parts of the pre-assembling sleeve and the conical sleeve are abutted against each other to push the pulley assembly to move towards the conical sleeve, the outer surface of one end of the conical sleeve is gradually reduced along the axial direction, when the pulley assembly and the like move to the gradually reduced part, the pulley assembly continues to move along the gradually reduced surface, the maximum outer diameter part of the conical sleeve is equal to the peripheral diameter of the pulley shaft, and the pulley assembly can be smoothly and accurately transferred onto the pulley shaft, so that the pulleys, the bearing, the pulley distance ring and the bearing isolating ring are transferred in batches, and the installation efficiency is greatly improved in the conventional one-by-one hoisting.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is the utility model provides a bridge crane movable pulley assembly quality's schematic structure diagram.
The figure includes:
the device comprises a pre-assembled sleeve 1, a conical sleeve 2, a conical section 21, a cylindrical section 22, a pulley 3, a bearing 4, a pulley distance ring 5, a bearing isolation ring 6 and a pulley shaft 7.
Detailed Description
The utility model discloses a core lies in providing a bridge crane movable pulley assembly quality, can assemble the pulley in batches, improves the efficiency of assembly.
In order to make those skilled in the art better understand the technical solution of the present invention, the following will describe the movable pulley block assembling device of the bridge crane in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, it is a schematic structural diagram of the movable pulley block assembling device of the bridge crane provided by the present invention; the utility model discloses a bridge crane movable pulley group assembly quality is including pre-installation cover 1 and toper cover 2, but pre-installation cover 1 and toper cover 2 between the two tip each other push up by the cooperation.
The inner ring installation bearing 4 of the pulley 3 forms a pulley assembly, namely, one pulley assembly is formed by mutually matching one pulley 3 and one bearing 4, at least two groups of pulley assemblies can be sleeved on the pre-assembled sleeve 1, the bearing 4 can be sleeved on the periphery of the pre-assembled sleeve 1, and the outer diameter of the pre-assembled sleeve 1 is smaller than the inner diameter of the inner ring of the bearing 4, so that the assembly and the separation are facilitated. The length of the pre-sleeve 1 is determined according to the number of sheave assemblies mounted thereon.
Two adjacent pulleys 3 are axially positioned through a pulley distance ring 5, and the adjacent pulleys are kept axially spaced through the pulley distance ring 5; two adjacent bearings 4 are axially positioned through a bearing isolation ring 6, and the axial interval is kept between the two adjacent bearings through the bearing isolation ring 6; as shown in connection with fig. 1, the pulley distance ring 5 has a larger size than the bearing distance ring 6, both arranged coaxially.
The taper sleeve 2 is detachably fixed at one end of the pulley shaft 7, the taper sleeve 2 is fixed at one end of the pulley shaft 7 when the transfer is needed, and the taper sleeve 2 is fixed at the left end of the pulley shaft 7 in the structure shown in fig. 1.
The outer surface of one end of the conical sleeve 2 is tapered along the axial direction, the left end of the conical sleeve 2 in fig. 1 is provided with an axially tapered surface, and the outer diameter of the conical sleeve 2 is gradually reduced from right to left; the outer diameter of the tapered sleeve 2 is equal to the outer diameter of the pulley shaft 7 at the maximum, ensuring smoothness during movement of the bearing 4 from the tapered sleeve 2 to the pulley shaft 7.
The end parts of the pre-assembled sleeve 1 and the conical sleeve 2 can be mutually abutted to transfer the pulley 3, the bearing 4, the pulley distance ring 5 and the bearing isolation ring 6 in batch; when in use, a plurality of groups of pulley assemblies are arranged on the pre-assembly sleeve 1 in advance, and a pulley spacing ring 5 and a bearing spacing ring 6 are arranged among the pulley assemblies to realize spacing; through 1 a plurality of pulleys 3, bearing 4, pulley distance ring 5 and bearing isolating ring 6 of suit location in batches of pre-installation, can hoist a plurality of pulleys 3, bearing 4, pulley distance ring 5 and bearing isolating ring 6 synchronous transfer.
Fixing a conical sleeve 2 at one end of a pulley shaft 7, aligning the end part of a pre-assembled sleeve 1 with the end part of the pulley shaft 7 before transferring, enabling the pre-assembled sleeve 1 and the pulley shaft 7 to be abutted against each other, impacting a pulley 3 along the axial direction through a swing hammer, enabling the pulley 3 together with a bearing 4, a pulley distance ring 5 and a bearing isolation ring 6 to synchronously move along the axial direction, as shown by arrows in figure 1, enabling the pulley 3 together with the bearing 4, the pulley distance ring 5 and the bearing isolation ring 6 to synchronously approach the pulley shaft 7, and because the conical sleeve 2 is provided with a tapered section, the size of the tapered section is smaller than the inner diameter of an inner ring of the bearing 4, the bearing is easily transited and transferred to the conical sleeve 2 and guided by the tapered section on the outer surface of the conical sleeve 2, and the bearing 4 automatically realizes centering and is transferred from the conical sleeve 2 to the pulley shaft 7; the utility model discloses a set up 1 pre-assembly multiunit loose pulley assembly of pre-assembling cover, consequently can once only shift a plurality of pulleys 3, bearing 4, pulley distance ring 5 and bearing spacer ring 6, do not need every part to hoist and mount one by one, can greatly promote assembly efficiency.
On the basis of the above scheme, the utility model discloses set up the convergent face respectively at the both ends of pre-installation cover 1, when pulley 3, bearing 4, pulley distance ring 5 and bearing spacer ring 6 removed the tip of pre-installation cover 1, because the external diameter reduces, can be more easily from pre-installation cover 1 go up the separation and transfer to on the toper cover 2. The tapered surface arranged at the end of the pre-assembled sleeve 1 can be a conical surface or a parabolic revolution surface as long as the outer diameter is tapered along the axial direction.
The outer diameter of the end part of the pre-assembled sleeve 1 is larger than or equal to that of the end part of the conical sleeve 2, and the outer diameters of the end parts of the pre-assembled sleeve 1 and the conical sleeve 2 which are abutted against each other are preferably equal to realize smooth transition. The outer diameter of the end part of the pre-assembled sleeve 1 is larger than that of the end part of the conical sleeve 2, so that a blocking step can be avoided, and the components of the pulley 3, the bearing 4, the pulley distance ring 5 and the bearing isolating ring 6 are smoother when being transferred.
Specifically, the utility model provides a 2 threaded connection of taper sleeve are in loose pulley 7, and taper sleeve 2 and loose pulley 7 are mutually supported through the screw thread and are twisted the dress fixedly.
Preferably, the utility model discloses a taper sleeve 2 includes toper section 21 and cylinder section 22, and the external diameter of cylinder section 22 equals with the external diameter of pulley shaft 7 assembly bearing 4 position, and the surface of toper section 21 is the circular conical surface, and the external diameter of maximum position equals with the external diameter of cylinder section 22. As shown in fig. 1, the cylindrical section 22 is hollow, and the inner wall of the cylindrical section 22 is provided with an internal thread which is screwed with the external thread provided at the end of the pulley shaft 7.
The end of the pulley shaft 7 is suddenly reduced to form a step surface, as shown in a in fig. 1, the tail end of the cylindrical section 22 can be matched with the step surface of the pulley shaft 7 to abut against, and as shown in fig. 1, after the cylindrical section 22 is screwed, the right end of the cylindrical section 22 and the step surface of the pulley shaft 7 bear axial impact of the pulley assembly on the tapered sleeve 2 through the step surface, so that the threaded structure is prevented from being damaged.
Specifically, the taper of the tapered section 21 in the present invention is 1:10, which ensures that the end of the tapered section 21 is small enough to be inserted into the pulley assembly, and the difficulty of assembly is increased due to the excessive taper.
The maximum outer diameter of the pre-assembling sleeve 1 is 1-10 mm smaller than the inner diameter of the inner ring of the bearing 4, a sufficient gap is formed between the outer surface of the pre-assembling sleeve 1 and the inner ring of the bearing 4, and the bearing assembly can be easily separated from the pre-assembling sleeve 1.
Preferably, the pre-assembling sleeve 1 of the present invention is a cylindrical hollow and through type, so as to reduce the weight of the pre-assembling sleeve 1; the pre-assembled sleeve 1 is provided with a hanging ring for binding, the hanging ring is arranged on the inner wall of the pre-assembled sleeve 1, and when the pulley assembly, the pulley spacing ring 5, the bearing isolation ring 6 and the like are moved out, a hook or a steel cable of a crane is connected with the hanging ring so as to prevent the pre-assembled sleeve 1 from falling.
During operation, structures such as a pulley assembly, a pulley spacing ring 5 and a bearing isolating ring 6 are arranged on the pre-assembly sleeve 1 in advance, a steel wire rope or a hook of a crane is connected to the pulley 3, and at least two connecting points are arranged to ensure the stability of the hoisting process. When the pre-assembled sleeve 1 is pressed against the end part of the conical sleeve 2, the YOKE hammer impacts the pulley 3, so that the structures such as the pulley assembly, the pulley spacing ring 5, the bearing isolating ring 6 and the like synchronously move along the axial direction and are jointly transferred to the conical sleeve 2 to continuously impact, so that the structures synchronously move to the pulley shaft 7; because the pre-assembly sleeve 1 is connected through the hanging ring, after the structures such as the pulley component and the like are separated, the pre-assembly sleeve 1 is lifted and slowly put down.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. The movable pulley block assembling device of the bridge crane is characterized by comprising a pre-assembled sleeve (1) and a conical sleeve (2), wherein a bearing (4) is arranged on an inner ring of a pulley (3) to form a pulley component, and at least two groups of pulley components can be sleeved on the pre-assembled sleeve (1);
two adjacent pulleys (3) are axially positioned through a pulley distance ring (5), and two adjacent bearings (4) are axially positioned through a bearing isolation ring (6);
the conical sleeve (2) is detachably fixed at one end of the pulley shaft (7), the outer surface of one end of the conical sleeve (2) is gradually reduced along the axial direction, and the maximum outer diameter of the conical sleeve (2) is equal to the outer diameter of the pulley shaft (7);
the end parts of the pre-assembled sleeve (1) and the conical sleeve (2) can be mutually abutted to transmit the pulley (3), the bearing (4), the pulley distance ring (5) and the bearing isolation ring (6) in batches.
2. The movable pulley block assembly device for a bridge crane according to claim 1, wherein both ends of said pre-assembled sleeve (1) are respectively provided with a tapered surface; the outer diameter of the end part of the pre-assembled sleeve (1) is larger than or equal to that of the end part of the conical sleeve (2).
3. Mobile pulley block assembly device for a bridge crane according to claim 2, characterised in that said tapered sleeve (2) is screwed to said pulley shaft (7).
4. A trolley set mounting arrangement for a bridge crane according to claim 3, characterised in that the conical sleeve (2) comprises a conical section (21) and a cylindrical section (22), the inner wall of the cylindrical section (22) being provided with an internal thread; the tail end of the cylindrical section (22) can be matched with the step surface of the pulley shaft (7) to abut against the step surface.
5. Mobile pulley block assembly device for a bridge crane according to claim 4, characterised in that said tapered section (21) has a taper of 1: 10.
6. The movable pulley block assembly device for a bridge crane according to claim 1, wherein the maximum outer diameter of the pre-assembled sleeve (1) is 1-10 mm smaller than the inner diameter of the inner ring of the bearing (4).
7. The movable pulley block assembly device for a bridge crane according to claim 1, wherein said pre-assembled sleeve (1) is a cylinder with a hollow through interior, and said pre-assembled sleeve (1) is provided with a hanging ring for binding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121867363.7U CN215287725U (en) | 2021-08-10 | 2021-08-10 | Movable pulley block assembling device of bridge crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121867363.7U CN215287725U (en) | 2021-08-10 | 2021-08-10 | Movable pulley block assembling device of bridge crane |
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| Publication Number | Publication Date |
|---|---|
| CN215287725U true CN215287725U (en) | 2021-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121867363.7U Active CN215287725U (en) | 2021-08-10 | 2021-08-10 | Movable pulley block assembling device of bridge crane |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115446563A (en) * | 2022-08-17 | 2022-12-09 | 武汉船用机械有限责任公司 | Assembly device and assembly method of pulley block |
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2021
- 2021-08-10 CN CN202121867363.7U patent/CN215287725U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115446563A (en) * | 2022-08-17 | 2022-12-09 | 武汉船用机械有限责任公司 | Assembly device and assembly method of pulley block |
| CN115446563B (en) * | 2022-08-17 | 2024-01-19 | 武汉船用机械有限责任公司 | Assembly device and assembly method for pulley block |
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