Tool for installing chain shaft pin of elevator
By designing a hoist chain pin installation tool that includes a lower vertical L-shaped tension rod and an upper vertical L-shaped tension rod, the problem of low efficiency in replacing chain pins in confined spaces is solved, and efficient and convenient installation and replacement are achieved.
Patent Information
- Application Number
- CN202520350540.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-03
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-03-03
AI Technical Summary
In large cement plants and steel plants, when replacing the chain shaft pins of NE hoists, the replacement time is much longer than the installation time because the equipment is already installed and the space is limited. This results in a waste of manpower and resources and low efficiency.
Design a tool for installing chain shaft pins of a hoist, including a lower vertical L-shaped tension rod and an upper vertical L-shaped tension rod. The distance between the two is adjusted by an adjustable bolt in the adjustment unit. An arc-shaped insert is used to insert into the chain shaft, which facilitates the installation and replacement of the chain shaft pin.
The chain pins can be replaced and installed efficiently and conveniently in confined spaces, reducing the need for working surfaces, improving work efficiency, and saving manpower and resources.
Smart Images

Figure CN223777077U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to hoist chain shaft pin technical field, concretely is a kind of hoist chain shaft pin installation tool. BACKGROUND
[0002] In the application of large-scale cement plant and steel plant engineering equipment machinery etc., when equipment is maintained, in the link of NE hoist chain shaft pin replacement installation, since the overall NE hoist equipment has been installed in place, the regional space is narrow, even when some chain shaft pins on hoist equipment are replaced, the shell near or other equipment that is adverse to chain shaft pin replacement needs to be removed, sometimes the time of removing shell and equipment that influence chain shaft pin replacement is much greater than the time of replacing chain shaft pin (when installing chain shaft pin, we need to use chain to be tied to chain with manpower to pull or drag, and there is no tool for installation), a lot of manpower and material resources are wasted, and the working efficiency is low.
[0003] Therefore, we propose a kind of hoist chain shaft pin installation tool, to overcome the problems existing in the above situation process, to replace and install chain shaft pin efficiently and conveniently in vertical plane and narrow space when chain shaft pin is installed. SUMMARY
[0004] In view of the deficiencies of the prior art, the utility model provides a kind of hoist chain shaft pin installation tool, solve the problem that since the overall NE hoist equipment has been installed in place, the regional space is narrow, even when some chain shaft pins on hoist equipment are replaced, the shell near or other equipment that is adverse to chain shaft pin replacement needs to be removed, sometimes the time of removing shell and equipment that influence chain shaft pin replacement is much greater than the time of replacing chain shaft pin, a lot of manpower and material resources are wasted, and the working efficiency is low.
[0005] To achieve the above object, the utility model is realized by the following technical scheme: a kind of hoist chain shaft pin installation tool, including lower vertical L type stretchable rod and upper vertical L type L stretchable rod, adjusting unit is arranged between the lower vertical L type stretchable rod and the upper vertical L type L stretchable rod, the adjusting unit includes:
[0006] Bolt sleeve, the end of the lower vertical L type stretchable rod is welded with the outer peripheral wall of bolt sleeve;
[0007] Adjustable bolt, which is slidingly connected in the bolt sleeve;
[0008] Connecting seat, the end is fixedly connected with the top end surface of adjustable bolt, the top end surface of the connecting seat is fixedly connected with the end of the upper vertical L type L stretchable rod, the connecting seat moves relative to the bolt sleeve by cooperating adjustable bolt, for adjusting the interval of the lower vertical L type stretchable rod and the upper vertical L type L stretchable rod.
[0009] Preferably, the end of the lower vertical L-shaped stretching rod and the upper vertical L-shaped stretching rod away from the adjusting unit is provided with an arc-shaped insertion rod, and the lower vertical L-shaped stretching rod and the upper vertical L-shaped stretching rod extend into the middle of the NE hoist chain shaft through the arc-shaped insertion rod.
[0010] Preferably, the outer wall of the bolt sleeve is fixedly connected with an anti-falling handle.
[0011] Preferably, the connecting seat bolt extends outwardly through the middle of the bolt sleeve, and a lock washer is sleeved on one end of the bolt sleeve.
[0012] Preferably, the lock washer is attached to the bottom end face of the bolt sleeve.
[0013] Preferably, the outer peripheral wall of the adjustable bolt is threadedly connected with an adjustable nut seat.
[0014] Preferably, the top end face of the adjustable nut seat is attached to the lock washer, and the lock washer and the adjustable nut seat are connected on the adjustable bolt to form a movable whole.
[0015] The utility model discloses a hoist chain shaft pin installation tool, which has the following beneficial effects:
[0016] The hoist chain shaft pin installation tool moves under the action of the adjusting unit by adjusting the adjustable bolt in the adjusting unit, and under the movement of the adjustable bolt, the connecting seat drives the upper vertical L-shaped stretching rod to move, at this time, the interval between the lower vertical L-shaped stretching rod and the upper vertical L-shaped stretching rod is adjusted, and the interval of the chain pin shaft is adjusted, the two sides of the chain pin shaft are limited by the lower vertical L-shaped stretching rod and the upper vertical L-shaped stretching rod, at this time, the chain pin shaft between the lower vertical L-shaped stretching rod and the upper vertical L-shaped stretching rod is conveniently adjusted, and the installation and replacement of the chain pin shaft are facilitated. DRAWINGS
[0017] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.
[0018] Fig. 1 It is a whole structure schematic diagram of the utility model;
[0019] Fig. 2The utility model discloses a lower vertical L type stretching rod and upper vertical L type L stretching rod connection schematic view.
[0020] Fig. 3 The utility model discloses the adjusting unit structure schematic view.
[0021] In the drawing: 1, lower vertical L type stretching rod;2, upper vertical L type L stretching rod;3, adjusting unit;31, bolt sleeve;32, adjustable bolt;33, connecting seat;34, anti -loosening spacer;35, adjustable type nut seat;36, anti -drop handle. DETAILED DESCRIPTION
[0022] In order to make the utility model embodiment's purpose, technical scheme and advantage more clear, the technical scheme in the utility model embodiment is clearly and completely described, obviously, the described embodiment is the part embodiment of the utility model, instead of all the embodiment. Based on the embodiment in the utility model, all other embodiments that the ordinary skill in the art obtains without making the creative labor belong to the range of the utility model protection.
[0023] The embodiment of the application provides a tool for installing a chain shaft pin of a hoist, which solves the problem that when the chain shaft pin of a whole NE hoist device is replaced, the device needs to be removed, and sometimes the time for removing the shell and the device affecting the replacement of the chain shaft pin is much longer than the time for replacing the chain shaft pin, which wastes a lot of manpower and material resources and has low work efficiency, and under the action of the adjusting unit 3, the adjustable bolt 32 in the adjusting unit 3 is adjusted to move, the connecting seat 33 drives the upper vertical L type L stretching rod 2 to move under the movement of the adjustable bolt 32, the distance between the lower vertical L type stretching rod 1 and the upper vertical L type L stretching rod 2 is adjusted, and then the gap of the chain shaft pin is adjusted, the two sides of the chain shaft pin are limited by the lower vertical L type stretching rod 1 and the upper vertical L type L stretching rod 2, the chain shaft pin between the lower vertical L type stretching rod 1 and the upper vertical L type L stretching rod 2 is conveniently adjusted, and the chain shaft pin is conveniently installed and replaced.
[0024] The lower vertical L type stretching rod 1, the upper vertical L type L stretching rod 2 and the adjusting unit 3 can be used in a narrow space, the perpendicularity "changes the surface into a line" maximizes the reduction of the demand for the working surface when the chain shaft pin is replaced and installed, and the more narrow the working environment is, the more prominent the effect is.
[0025] In order to better understand the above technical scheme, the above technical scheme will be described in detail in combination with the drawings in the specification and specific embodiments.
[0026] The utility model discloses an elevator chain shaft pin installation tool.
[0027] Embodiment one:
[0028] According to the drawings, Figs. 1-3 As shown, including lower vertical L type stretch pole 1 and upper vertical L type stretch pole 2, lower vertical L type stretch pole 1 and upper vertical L type stretch pole 2 are provided with adjusting unit 3 between, adjusting unit 3 includes:
[0029] Bolt sleeve 31, the end of lower vertical L type stretch pole 1 is welded with the outer wall of bolt sleeve 31;
[0030] Adjustable bolt 32, which is slidingly connected in bolt sleeve 31;
[0031] The end is fixedly connected with the top end surface of adjustable bolt 32, and the top end surface of connecting seat 33 is fixedly connected with the end of upper vertical L type stretch pole 2, and connecting seat 33 is moved relative to bolt sleeve 31 by cooperating with adjustable bolt 32, for adjusting the spacing of lower vertical L type stretch pole 1 and upper vertical L type stretch pole 2.
[0032] The end of lower vertical L type stretch pole 1 and upper vertical L type stretch pole 2 away from adjusting unit 3 is provided as an arc-shaped insertion rod, and lower vertical L type stretch pole 1 and upper vertical L type stretch pole 2 extend into the middle of the NE elevator chain shaft to be replaced and installed through the arc-shaped insertion rod;
[0033] Under the action of adjusting unit 3, the adjustable bolt 32 in the adjusting unit 3 is moved, and under the movement of the adjustable bolt 32, the connecting seat 33 drives the upper vertical L type stretch pole 2 to move, at this time, the spacing of the lower vertical L type stretch pole 1 and the upper vertical L type stretch pole 2 is adjusted, and then the gap of the chain pin shaft is adjusted, and the two sides of the chain pin shaft are limited by the lower vertical L type stretch pole 1 and the upper vertical L type stretch pole 2, at this time, the chain pin shaft between the lower vertical L type stretch pole 1 and the upper vertical L type stretch pole 2 is adjusted, and the installation and replacement of the chain shaft pin are facilitated.
[0034] And lower vertical L type stretch pole 1, upper vertical L type stretch pole 2 and adjusting unit 3 can be used in a narrow space, and the perpendicularity "line" maximizes the reduction of the demand for the working surface when replacing and installing the chain pin shaft, and the more narrow the working environment, the more prominent the effect.
[0035] The outer wall of bolt sleeve 31 is fixedly connected with anti-falling handle 36, bolt sleeve 31 is conveniently held through anti-falling handle 36, bolt sleeve 31 is moved, and lower vertical L type stretch pole 1 and upper vertical L type stretch pole 2 are conveniently inserted into the elevator chain shaft pin.
[0036] The connecting seat 33 is threaded through the middle of the bolt sleeve 31 and extends outward, and the connecting seat 33 is sleeved with the anti-loosening washer 34 at the end outside the bolt sleeve 31.
[0037] The anti-loosening washer 34 is attached to the bottom end surface of the bolt sleeve 31.
[0038] Embodiment two:
[0039] The adjustable bolt 32 is threaded with the adjustable nut seat 35 on the outer peripheral wall, and under the action of the anti-loosening washer 34, the bolt sleeve 31 provides a certain friction and elastic deformation, thereby effectively preventing loosening.
[0040] When the bolt sleeve 31 is subjected to external force or vibration, the anti-loosening washer 34 will be compressed, thereby increasing the friction of the thread or axial connection, preventing the bolt sleeve 31 from loosening.
[0041] The top end surface of the adjustable nut seat 35 is attached to the anti-loosening washer 34, and the anti-loosening washer 34 is connected with the adjustable nut seat 35 on the adjustable bolt 32 to form a movable whole, and the adjustable nut seat 35 pushes the anti-loosening washer 34 to contact and extrude the bottom of the bolt sleeve 31.
[0042] The basic principles and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.
Claims
1. A tool for installing a hoist chain pin, characterized by, Including the lower vertical L type stretch rod (1) and the upper vertical L type stretch rod (2), the lower vertical L type stretch rod (1) and the upper vertical L type stretch rod (2) are provided with adjusting unit (3), the adjusting unit (3) includes: Bolt sleeve (31), the end of the lower vertical L type stretch rod (1) is welded with the outer wall of bolt sleeve (31); Adjustable bolt (32) is slidably connected in bolt sleeve (31); The end of the connecting seat (33) is fixedly connected with the top end surface of the adjustable bolt (32), the top end surface of the connecting seat (33) is fixedly connected with the end of the upper vertical L type stretch rod (2), the connecting seat (33) cooperates with the adjustable bolt (32) to move relative to the bolt sleeve (31), which is used for adjusting the distance between the lower vertical L type stretch rod (1) and the upper vertical L type stretch rod (2).
2. A tool for installing a shaft pin of an elevator chain according to claim 1, characterized in that The end of the lower vertical L type stretch rod (1) and the upper vertical L type stretch rod (2) is provided as an arc-shaped plug rod, and the lower vertical L type stretch rod (1) and the upper vertical L type stretch rod (2) are inserted into the middle of the NE elevator chain shaft which needs to be replaced and installed.
3. A tool for installing a shaft pin of an elevator chain according to claim 1, characterized in that The outer wall of the bolt sleeve (31) is fixedly connected with the anti-falling handle (36).
4. The tool for installing a chain shaft pin of an elevator according to claim 1, wherein The connecting seat (33) is penetrated through the middle of the bolt sleeve (31) and extends outward, and one end of the connecting seat (33) outside the bolt sleeve (31) is sleeved with the anti-loosening washer (34).
5. A tool for installing a chain shaft pin of an elevator chain according to claim 4, characterized in that The anti-loosening washer (34) is attached to the bottom end surface of the bolt sleeve (31).
6. A tool for installing a shaft pin of an elevator chain according to claim 1, characterized in that, The outer peripheral wall of the adjustable bolt (32) is threadedly connected with the adjustable nut seat (35).
7. A tool for installing a chain shaft pin of an elevator chain according to claim 6, characterized in that The top end surface of the adjustable nut seat (35) is attached to the anti-loosening washer (34), and the anti-loosening washer (34) and the adjustable nut seat (35) are connected on the adjustable bolt (32) to form a movable whole.