JP2005119803A - Guide shoe of elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a guide shoe of an elevator for facilitating guide shoe abrasion amount inspection. <P>SOLUTION: The guide shoe 2 disposed in a lifting car 4 guided by a guide rail 1 is provided with an abrasion amount inspection hole 2c that has a tip inside at a predetermined interval from the sliding contacting surface and is penetrated when the sliding surface of the guide shoe 2 exceeds a certain abrasion amount. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a guide shoe of an elevator that guides a car or a counterweight along a guide rail, and more particularly to a mechanism for detecting that the amount of wear of the guide shoe exceeds a certain value.

  FIG. 2 shows a conventional elevator guided by a guide rail 1 in the hoistway. In general, a guide shoe 2 slidably engaged with a guide rail 1 provided in an elevator hoistway is provided on a car 4 that is lifted and lowered by a rope 3.

  FIG. 4 is a diagram illustrating the engagement between the guide rail 1 and the guide shoe 2. The guide rail 1 has a convex cross section, and the protrusion 1a and the groove 2a of the guide shoe 2 having a concave cross section are slidably engaged. Here, the guide shoe 2 is provided with a shoe 2 b made of a material that is more easily worn than the guide rail 1.

  When the elevator car 4 moves up and down, it is guided by a guide shoe 2 engaged with a guide rail 1 in the hoistway. At this time, the protrusion 1a of the guide rail 1 and the groove sliding surface 2a of the guide shoe 2 slide, whereby the shoe 2b is worn. When the shoe 2b wears, the gap between the projection 1a of the guide rail 1 and the groove sliding surface 2a of the guide shoe 2 increases.

  Therefore, when the elevator is in operation, the car 4 is greatly shaken, and the vibration when getting into the car 4 is increased, which may make the elevator ride uncomfortable and sometimes cause anxiety to the passengers. It is.

  Therefore, when the shoe 2b is worn down to a certain size, it must be replaced, and the wear state is regularly inspected.

  A conventional method for measuring the amount of wear of the guide shoe is that the operator is positioned on the car 4 or at the lower part of the hoistway and uses a gap gauge or the like to use the gap 1 or the like and the groove 1 sliding surface 2a of the guide shoe 2. It is measured whether the depth of the gap 5 and the depth of the groove sliding surface 2a of the guide shoe 2 is within a specified value, and when this is outside the specified value, the guide shoe 2 has been replaced.

  However, in the conventional guide shoe wear amount inspection, when the gap gauge is pushed into the gap 5 between the guide rail 1 and the guide shoe 2, the size between the hoistway wall which is the work place and the outside of the car is checked in the inspection of the upper guide shoe 2. In addition, there is an oil supply device 6 for the guide rail 1 and the workability is poor, and the operator has to divide and measure under the cage in the inspection of the lower guide shoe 2, which is difficult to work. It was.

  Furthermore, the guide rail 1 is always coated with lubricating oil from the car oiling device 6, and the work of inserting the gap gauge into the guide rail 1 and the guide shoe 2 has a lot of oil stains. Care was required not to get dirty.

  In order to solve the above problems, as this type of apparatus, means for automatically detecting wear of the guide shoe 2 without using a gap gauge is known (see Patent Document 1).

  A guide shoe wear detection device disclosed herein is provided in an elevator car, and a guide shoe that guides a car that moves up and down along the guide rail is provided on the guide shoe with a predetermined gap with respect to the guide rail. And a conductor embedded in the shoe, and detecting means for detecting electrical characteristics of the conductor. As a result, when the shoe wears, the conductor embedded in the shoe also wears, so the degree of wear can be determined from the electrical characteristics of the conductor without disassembling the guide shoe, making it extremely easy to check the wear status. Thus, the work time required for maintenance and inspection of the elevator apparatus can be shortened.

According to this method, because of automatic measurement, it is possible to measure the wear of the guide shoe more accurately by solving the conventional poor workability and the problem of dirt.
JP 2001-199654 A (paragraphs 0011 to 0024, FIG. 1)

  However, in the above method, it is necessary to embed a conductor in the inside of the guide shoe, and further, a detection means for detecting electrical characteristics is required. It takes a lot of time and is expensive compared to the current guide shoe.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to make it possible to easily detect the wear of the guide shoe without using a complicated structure. To supply shoes.

  In order to solve the above-mentioned problem, the invention according to claim 1 is characterized in that the tip of the guide shoe is spaced a predetermined distance from the sliding contact surface, and the sliding surface of the guide shoe exceeds a certain amount of wear. It is characterized by providing a wear amount inspection hole to pass through.

  As a result, when the guide shoe 2 is worn, the distance from the sliding surface of the guide shoe to the tip of the hole is set to the replacement reference dimension or limit dimension of the wear amount. When the wear amount inspection hole penetrates, the replacement time of the guide shoe 2 can be easily determined, and the guide shoe wear amount inspection operation becomes extremely easy.

  According to a second aspect of the present invention, in the first aspect of the present invention, the wear amount inspection hole is a slide of a guide shoe having a concave cross-sectional shape that slidingly engages a guide rail having a convex cross-sectional shape. It is provided on all three surfaces, and the opening of the hole is located on the side surface and the back surface of the guide shoe as viewed from the guide rail side.

  As a result, it is possible to detect the wear amount for any of the three surfaces of the concave guide shoe.

  The invention according to claim 3 is characterized in that, in the invention according to claim 1 or 2, a plurality of wear amount inspection holes have the same depth from the sliding contact surface and a plurality of wear amount inspection holes. .

  As a result, even if the degree of shoe wear is uneven, it is possible to detect where the wear is progressing on the shoe, and it is easy to take measures such as adjusting the mounting state of the guide shoe to correct the unevenness.

  The invention according to claim 4 is the invention according to any one of claims 1 to 3, wherein the wear amount inspection hole has a tip having a different depth from the sliding contact surface and a plurality of holes. It is characterized in that it is provided.

  As a result, the progress of wear can be known step by step, so that it is easy to grasp the shoe replacement time and to formulate and prepare a maintenance plan.

  Further, the invention according to claim 5 is the invention according to any one of claims 1 to 4, wherein the wear amount inspection hole is such that the track of the hole faces downward from the sliding contact surface and the wear amount inspection is performed. The method is characterized in that the wear amount inspection hole at the time of wear of the guide shoe penetrates and the presence or absence of the guide rail lubricant exiting from the inspection hole is characterized.

  As a result, when the guide shoe wears and the wear amount inspection hole penetrates, the lubricant applied to the guide rail flows from the wear amount inspection hole to the visible portion on the appearance of the guide shoe by its own weight. It can be seen at the time of shoe replacement.

  The invention according to claim 6 is the invention according to any one of claims 1 to 4, wherein the wear amount inspection method is performed by inserting a rod-shaped inspection tool into the wear amount inspection hole. It is characterized by that.

  This makes it easy to insert a bar-shaped inspection tool from the side or back of the guide shoe without inserting a gap gauge into the gap between the guide rail and the guide shoe, which is not easy to work and requires attention to dirt. In addition, the wear of the guide shoe can be checked.

  As described above in detail, according to the present invention, since the degree of wear of the guide shoe can be easily known without using a complicated guide shoe structure, the maintenance and inspection of the elevator becomes extremely easy. Therefore, it is possible to shorten the elevator stop time.

  In particular, according to the first aspect of the present invention, when the guide shoe 2 is worn, the distance from the sliding surface of the guide shoe to the tip of the hole is set to the replacement reference dimension or limit dimension of the wear amount. When the set wear amount is reached, the wear amount inspection hole penetrates, so that it is possible to easily determine the replacement time of the guide shoe, and the guide shoe wear amount check operation becomes extremely easy.

  Further, according to the second aspect of the present invention, it is possible to detect the amount of wear for any of the three surfaces of the concave guide shoe.

  According to the third aspect of the present invention, it is possible to detect where the wear has progressed even when the shoe wear is uneven, so that the mounting state of the guide shoe that corrects the unevenness can be detected. It becomes easy to take measures such as adjustment.

  Further, according to the invention described in claim 4, since the progress of wear can be known in stages, it becomes easy to grasp the shoe replacement time and to formulate and prepare a maintenance plan.

  Further, according to the fifth aspect of the invention, when the guide shoe is worn and the wear amount inspection hole penetrates, the lubricant applied to the guide rail is guided from the wear amount inspection hole by its own weight. Since it flows out to the visible part above, it can be seen at a glance when the guide shoe is replaced.

  According to the sixth aspect of the present invention, the work efficiency of the guide shoe is reduced without performing the work of inserting a gap gauge into the gap between the guide rail and the guide shoe, which is poor in workability and requires attention to dirt. Inserting a rod-shaped inspection tool from the side or back, you can easily check the wear of the guide shoe.

  Hereinafter, an embodiment of an elevator guide shoe according to the present invention will be described with reference to FIGS.

  1 is a perspective view showing an embodiment of a guide shoe of the present invention, FIG. 2 is a front view showing the structure of an elevator car, FIG. 3 is a front view showing the structure of a counterweight, and FIG. FIG. 5 and FIG. 6 are sectional views showing one embodiment of the guide shoe of the present invention, and FIG. 7 and FIG. 9 are one embodiment of the guide shoe of the present invention. The perspective view which shows a form, FIG. 8: shows the front view which shows one Embodiment of the guide shoe of this invention.

  As shown in FIG. 2, the elevator includes a guide rail 1 standing in a hoistway and a car 4 that is guided by the guide rail 1 and is lifted by a rope 3.

  The car 4 is provided with a guide shoe 2 for slidingly engaging the guide rail 1 and guiding the car 4 at an upper part and a lower part, and an oil supply device 6 for supplying lubricating oil to the guide rail 1.

  As shown in FIG. 4, the guide shoe 2 is engaged with a guide rail 1 having a concave cross section and a convex cross section. Since the shoe portion 2b that slides with the guide rail 1 is made of a material such as nylon that is more easily worn than the copper guide rail, the shoe portion 2b gradually wears depending on the operating condition of the elevator. If the guide shoe 2 wears and the gap with the guide rail 1 becomes large, the elevator 4 will shake more during the elevator operation, and the vibration when entering the passenger car 4 will increase. It can be uncomfortable and sometimes annoying passengers. Therefore, as shown in FIG. 1, the guide shoe 2 is provided with a wear inspection hole 2c. As shown in FIG. 5, the wear inspection hole 2 c of the guide shoe 2 is provided on all sliding surfaces with a predetermined distance L1 from the sliding surface 2 a with the guide rail 1 at the tip of the hole. The predetermined interval L1 is set to the wear replacement reference dimension or the wear limit dimension of the shoe portion 2b. Here, when the shoe portion 2b is worn by a predetermined interval L1, the wear inspection hole 2c penetrates as shown in FIG.

  For this reason, as shown in FIG. 1, the method for checking the wear of the guide shoe 2 is to insert a rod-shaped inspection tool 7 that enters the wear check hole 2c of the guide shoe into the wear check hole 2c and check whether it is not threaded.

  If the wear amount is less than the predetermined size, it will not penetrate and will stop at the shoe portion 2b as shown in FIG. 5, and if the wear amount exceeds the predetermined size, it will pass through, and the inspection rod 7 will contact the guide rail 1 as shown in FIG. In addition, the wear of the guide shoe 2 can be inspected.

  Next, a second embodiment of the present invention will be described with reference to FIG.

  In this embodiment, the wear inspection hole 2c of the guide shoe 2 described as the first embodiment is one place on one sliding surface in the sliding direction of the guide shoe 2, for example, a plurality of places, for example, two places. The depth of the wear inspection hole 2c is the same distance from the sliding surface 2a of the shoe.

  As described above, the reason why the plurality of wear inspection holes 2c are provided in the sliding direction is that the guide rail 1 and the guide shoe 2 are not necessarily in average contact with each other depending on the structure of the building and the installation method of the elevator apparatus. This is because there may be a part that contacts in an unbalanced manner. In such a case, if there is only one wear inspection hole 2c and it is difficult to contact the guide rail 1, even if the guide shoe 2 is worn, the wear inspection hole 2c is not worn so much that wear cannot be detected. Is expected. Therefore, if a plurality of wear inspection holes are opened from the shoe sliding surface 2a to the same distance, even if the wear of the guide shoe 2 does not progress evenly, any one of the plurality of wear inspection holes 2c is formed. Since it wears, shoe wear can be reliably detected. Further, since there are a plurality of wear inspection holes 2c, it is possible to know which part wears quickly. Therefore, it becomes easy to take measures such as adjusting the mounting state of the guide shoe 2 to correct the uneven wear.

  Next, a third embodiment of the present invention will be described with reference to FIG. FIG. 8 is a cross-sectional view of a guide shoe according to an embodiment of the present invention.

  In this embodiment, the wear inspection holes 2c described in the second embodiment are formed at the same interval from the shoe sliding surface 2a. In addition to this, the wear inspection holes having different depths are provided. 2d is provided.

  As described above, the reason why the wear inspection holes 2c and 2d having different depths are provided is that the progress of wear of the guide shoe 2 is detected step by step so that the time for replacing the guide shoe 2 and the plan for maintenance, etc. can be determined. This is to facilitate formulation and preparation.

  That is, as wear of the guide shoe 2 progresses, the wear inspection hole close to the shoe sliding surface 2a first penetrates, and then the wear inspection hole far from the shoe sliding surface 2a penetrates. As a result, the progress of wear can be known step by step, so that it is easy to grasp the shoe replacement time and to formulate and prepare a maintenance plan.

  Next, a fourth embodiment of the present invention will be described with reference to FIG.

  In this embodiment, the track of the wear inspection hole 2c described in the first to third embodiments is provided so as to face downward from the sliding contact surface side.

  Thus, the reason why the track of the wear inspection hole 2c is directed downward is that the wear applied to the guide rail 1 is such that when the wear of the guide shoe 2 progresses and the track of the hole is directed downward. This is because the oil 8 flows out from the wear inspection hole 2c by its own weight, and the wear amount can be easily inspected by checking the presence or absence of oil in the vicinity of the wear inspection hole 2c by visual inspection of the guide shoe.

  As described above, the embodiment of the guide shoe 2 provided on the car 4 has been described. However, as shown in FIG. 3, the counterweight 9 is also provided with the guide shoe 2 similarly to the car 4. The above embodiment can be applied.

It is a perspective view showing one embodiment of a guide shoe of the present invention. It is a front view which shows the structure of an elevator car. It is a front view which shows the structure of a counterweight. It is sectional drawing which shows engagement of a guide shoe and a guide rail. It is sectional drawing which shows one Embodiment of the guide shoe of this invention. It is sectional drawing which shows one Embodiment of the guide shoe of this invention. It is a perspective view showing one embodiment of a guide shoe of the present invention. It is a front view which shows one Embodiment of the guide shoe of this invention. It is a perspective view showing one embodiment of a guide shoe of the present invention.

Explanation of symbols

1 guide rail,
1a Guide rail protrusion,
2 Guide shoe,
2a Guide shoe groove sliding surface,
2b The shoe part of the guide shoe,
2c Wear inspection hole,
3 Rope 4 Passenger car 5 Clearance between guide rail and guide shoe 6 Lubricating device 7 Wear inspection rod 8 Lubricating oil 9 Counterweight

Claims (6)

  A guide shoe that is provided on an elevator car or a counterweight and that slides and engages the elevator car or counterweight along the guide rail and guides the guide shoe. A guide shoe for an elevator, wherein a wear amount inspection hole is provided at a predetermined interval from the contact surface and penetrates when the sliding surface of the guide shoe exceeds a certain amount of wear.   In the first aspect of the invention, the wear amount inspection holes are provided on all three surfaces on which the guide shoe having a concave cross-sectional shape slidingly engages with the guide rail having a convex cross-sectional shape, and the hole opening is provided. An elevator guide shoe characterized in that the portion is located on a side surface and a back surface of the guide shoe as viewed from the guide rail side.   3. The elevator guide according to claim 1, wherein a plurality of wear amount inspection holes are provided at the tip at the same depth from the sliding contact surface. Shoe.   In the invention according to any one of claims 1 to 3, the wear amount inspection hole has a tip provided at a different depth from the sliding contact surface and a plurality of holes are provided. Guide shoe.   In the invention according to any one of claims 1 to 4, the wear amount inspection hole is such that the track of the hole faces downward from the sliding contact surface, and the wear amount inspection method is a wear amount inspection at the time of guide shoe wear. An elevator guide shoe characterized by the presence or absence of a guide rail lubricant that passes through the hole and exits from the inspection hole. 6. The elevator guide shoe according to any one of claims 1 to 5, wherein the wear amount inspection method is performed by inserting a rod-shaped inspection tool into the wear amount inspection hole.

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