JPS61165047A - Babbitt type rope socketing method - Google Patents

Abstract

PURPOSE:To prevent fusing of synthetic resin rope core when filling Babbitt metal by inserting a thermal insulation core protection member into the strand thereafter filling with fused Babbitt metal. CONSTITUTION:A core protection disc 11 is inserted into the inside of respective strand 81a, 81b, 81c,... folded randomly at the end of rope 8 untill contacts against the end of the core rope 82. Thermal insulation material such as rock wool or glass wool is employed for said protection disc 11. After applying cover at the end of the core rope 82, the rope 8 is pulled to pull the teawhisk section into a lower half tapered hole 9a of rope socket 9 then fused Babbitt metal 10 is flowed through a window section 9b into said hole 9a.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] This invention relates to a method for socketing ropes mainly used as elevator main ropes, governor ropes, etc. This article relates to a method of soggering in the Babbitt method.

[Technical background of the invention and its problems]

Normally, in the hoistway of an elevator, a main loaf 5 is provided which suspends a car 3 and a counterweight 4 by wrapping around the hoisting machine sheave 1 and deflection sheave 2 of the upper machine, as shown in Fig. 5. The governor device (UA), which is one of the safety devices,
A governor rope 8 is provided which is wound around the governor sheave 76 of the lower end bit part and the tension sheave 7 of the lower end bit part and is linked to the raising and lowering of the car 3, and various ropes such as convensating ropes are provided, which are not shown in the map. There is.

In such an elevator, when using a rope with a lower tension than the cutting load, such as the governor rope 8, if a rope with a natural fiber core mesh is used as in the past,
Under high humidity ff1jJi, the six ropes expand due to moisture absorption, causing abnormal contraction in the longitudinal direction of the rope, which causes the tension sheave 7 to be lifted abnormally, resulting in a problem. As a solution to this problem, there has recently been a proposal to use a rope containing a synthetic fiber cord for the governor rope 8 and the like, which has a remarkable effect on preventing rope shrinkage.

By the way, as shown in FIG. 5, the governor rope 8 is connected to the frame of the car 3 by connecting its both ends to rope sockets 9 in order to operate in conjunction with the car 3. The governor rope 8 is made of synthetic fibers. When using a rope with a core in it, there was a problem with the rope socketing. That is,
The end of the governor rope 8 is generally connected to the rope socket 9 using the Babbitt rope socketing method, but at that time, high temperature molten baggot metal is poured and filled, so the heat causes the central synthetic fiber core to become deep. When it melts to a certain point, a cavity is created in that part and the outer diameter of the rope becomes thinner, and that part corresponds to the end of the rope socket (the base of the rope relative to the rope socket).
A problem arises in which that part becomes weak due to repeated loads.

In other words, FIGS. 6 and 7 show how the end of the governor rope 8 is connected to the rope socket 9 by the conventional Babbitt rope socketing method. First, the rope 8 is connected to the rope socket 9. 9 from the lower end into the lower half tapered hole 10a of the loaf 8 and pulled out from the intermediate window 9b, where the strands 81a, 81b, 81c, etc. twisted around the outer periphery of the end of the loaf 8 are separated into individual strands. The end of the rope was folded back about 60m+ to make a teacup shape, and then pulled back in the opposite direction to draw the end of the rope into the tapered hole a of the rope socket 9. In this state, the end of the rope was stored. A window 9b is provided in the tapered hole a of the rope socket 9.
Then, as shown in FIG. 7, molten Babbitt metal 10 is poured and filled. With this, the pavit metal 1
By hardening the loaf 8, the end portion of the loaf 8 can be coupled and fixed to the rope socket 9.

With this Babbitt rope socketing method, there is no problem with conventional ropes with a core made of natural fibers, but
When the synthetic fiber core loaf 8 is used as described above, the synthetic fiber core 82 of the rope 8 may melt from its end due to the heat during filling with the molten Babbitt metal 10, as shown in FIG. become. As a result, the heart network was originally 8
2, the strength of the rope 8 coming out from the end of the rope socket 9 should have been around the level indicated by Y above the rope base X, which is also important, but it melted deeply and fell downward.
The problem arises that a cavity is formed near the rope root X, and the outer diameter of the rope becomes thinner and weaker, or that Babbitt metal 10 flows in and adversely affects the properties of the rope.

(Purpose of the Invention) This invention was made in view of the above circumstances, and the synthetic fibers and core mesh of the rope do not melt during filling with molten Babbitt metal, solving the conventional problems and making it possible to operate in a humid environment. To provide a Bappitt type rope socketing method which enables a rope with a core made of synthetic fiber having an effect of preventing shrinkage to be properly connected to a rope socket.

[Summary of the invention]

In order to achieve the above object, the Babbitt rope socketing method of the present invention applies a core mesh protective material having heat insulating properties to the inner periphery of each folded strand at the end of the rope before filling with molten Pavitt metal. In this method, the synthetic fiber core rope is prevented from melting by inserting the synthetic fiber cord and filling it with the molten Babbitt net in that state.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to FIGS. 1 to 4. The rope socket 9 used here is the same as that shown in FIG. 6 and factor 7 described above. Moreover, the governor rope 8 is a rope with a core made of synthetic fiber. In other words, the rope 8 has a synthetic fiber core strand 82 as shown in FIG.
a, 82b.

82c are twisted together to form a core net 82, and a large number of rope strands 81a, 81b, 81c, .

However, to describe the rope socketing method in which the end of the synthetic fiber core net 82 and the rope 8 are connected and fixed to the rope socket 9 by the Babbitt method, first, as shown in FIG. is inserted into the lower half tapered hole 9a of the rope socket 9 and pulled out appropriately from the intermediate window 9b, where the end of the rope 8 is inserted into each strand 818, 81b, 81
C: Break into pieces and fold back about 60 times to make a tea cup shape.

The synthetic fiber core mesh 82 at the center of the loaf 8 is cut in advance so that the ends of each of the strands 8 are cut as shown in FIG.
1a, 81b, 81c, etc. so that they are near the folded ends.

The process up to this point is the same as the conventional method, and the loaf 8 is pulled back in the opposite direction to draw the teacup-shaped part into the lower half tapered stake hole 9a of the rope socket 9, but before that, the third
As shown in Figures (a) and (b), a disk-shaped core mesh protective material 11 is prepared, and the core mesh protective material 11 is separated from the ends of the loaf 8 as shown in Figure 1. Each strand 81a, 81b, 81c... is folded back to form a tea cup shape.
and push it in until it joins the end of the core mesh 82 as shown in Figure 12. This core mesh protective material 11 is a disk-shaped material made of a material with heat insulation properties such as asbestos or glass wool, and has excellent heat insulation properties and flexibility.
Moreover, the diameter is equal to or slightly thicker than the diameter of the core mesh 82.

After inserting the core mesh protective material 11 as described above to cover the end of the core mesh 82, the loaf 8 is pulled back and the teacup-shaped portion is inserted into the lower half of the tapered stake hole 9a of the rope socket 9.
In this state, molten Babbitt metal 10 is poured into the tapered pile hole 9a of the rope socket 9 through the window 9b as shown in FIG. 2 to fill it. As the Babbitt metal 10 hardens in this way, the loaf 8
The end portion is connected and fixed to the rope socket 9.

When keting is done in this manner, the a-78 synthetic fiber core net 82 is insulated and protected by the cord protection material 11, and will not melt due to the heat when filling with molten Babbitt metal 10, and the core net 82 will be protected by the rope socket 9. The strength-related material that comes out from the end of the rope exists at a level above the important rope root, and as in the case of conventional ropes, a cavity is created near the rope root and the outer diameter of the O-b becomes thinner and weaker. 10 flow eliminates problems such as adversely affecting the properties of the rope, allowing highly reliable rope socketing.

In addition, although the rope socketing method for the 8 ends of the governor rope was explained in the above example, the same method can also be applied to rope socketing when a synthetic fiber cored rope is used as the convensating rope or the main rope. Of course, it can be applied.

Further, the shape of the core mesh protective material 11 is not limited to a disk shape, but may be any other suitable shape.

〔Effect of the invention〕

As described above, in this invention, before filling with molten Babitt metal, a core mesh protective material having heat insulating properties is inserted into the inner periphery of each folded strand at the end of the rope, and in this state, the above-mentioned molten Babitt metal is filled. Because of this, it is an extremely reliable Babbitt type rope socket that can be filled with molten Babbitt metal and can be well connected to a rope socket with a synthetic fiber cored rope that has an effect of preventing shrinkage in a humid environment. It becomes law.

[Brief explanation of the drawing]

Fig. 1 is a state diagram showing an embodiment of the present invention during rope socketing, Fig. 2 is a partial sectional view showing a state in which rope socketing is completed in the same embodiment, Fig. 3(a),
(b) is a plan view and a side view of the core mesh protection material used in the same example, FIG. 4 is a cross-sectional view of the synthetic fiber core mesh rope, FIG. Figure 6 is a diagram showing the state of rope socketing in the middle of rope socketing using the conventional Babbitt rope socketing method, Figure 7 is a diagram showing the completed state of rope socketing using the same conventional method, and Figure 8 is a part of the problem with the same conventional method. FIG. 8...Synthetic fiber cored rope (governor rope),
81 a, 8 l b, 81 c-o-7 st y
82...Synthetic fiber cord, 9...Bout socket, 9a...Tapered hole, 9b...Window hole portion,
10... Babbitt metal, 11... Core mesh protective material.

Claims (1)

[Claims] The end of a rope made of multiple strands twisted together with a synthetic fiber core in the center is inserted into a rope socket, and the end of the rope is separated into individual strands and folded back, and in this state, molten Babbitt metal is inserted into the rope socket. In the Babbitt rope socketing method in which the rope end is joined to the rope socket by filling the rope socket, the inner periphery of each folded strand of the rope end is provided with a heat insulating property before filling with the molten Babbitt metal. A Babbitt rope socketing method characterized by inserting a core mesh protective material and filling it with the above-mentioned molten Babbitt metal in that state.