JP5743700B2 - Bar-type rotary gate device - Google Patents

Description

  The present invention relates to a bar-type rotary gate device for restricting user traffic.

  Conventionally, gate devices for restricting the passage of users are installed at station ticket gates and amusement park entrances and exits. As this type of gate device, for example, as disclosed in Patent Document 1, a bar-type rotary gate device that rotates three or four arms is known.

Japanese Patent Laid-Open No. 2004-227459

  In recent years, gate devices can be installed in a wide variety of locations, both indoors and outdoors.For example, in outdoor environments where dust is scattered, outdoor environments exposed to wind and rain, salt damage environments near the coast, etc. Sufficient measures against dust and water droplets are necessary.

  This invention is made | formed in view of the above points, and it aims at providing the bar-type rotary gate apparatus excellent in dustproof property and waterproofness.

The bar-type rotary gate device of the present invention is a bar-type rotary gate device comprising a gate body, a rotary body rotatably provided on the gate body, and a bar fixed to the rotary body, A rotating shaft of a rotating body; a cylindrical bearing case provided in the gate body through which the rotating shaft is inserted; a bearing provided inside the bearing case and rotatably supporting the rotating shaft; and the bearing A plurality of rows of packings disposed on an outer peripheral surface of the rotating shaft, disposed on the rotating body side of the bearing inside the case, wherein the rotating shaft is supported by the bearing; A small-diameter portion to which a plurality of rows of packings are mounted, and chromium plating is applied to an outer peripheral surface of the small-diameter portion of the rotating shaft and a contact surface of the plurality of rows of packings. .
Another feature of the bar-type rotary gate device according to the present invention is that the rotary body is formed with an insertion hole through which the small-diameter portion of the rotary shaft is inserted, and the rotary body is rotated from the front side of the rotary body. A lock member for fixing the shaft and the rotating body is mounted, and the lock member generates a surface pressure on the outer peripheral surface of the small-diameter portion and the inner peripheral surface of the rotating body. The rotating body is configured to be fixed, and the outer peripheral surface of the small-diameter portion of the rotating shaft, which is inserted into the insertion hole, is not subjected to chrome plating .

  According to the present invention, the contact surface of the outer peripheral surface of the rotating shaft and the contact surface of the packing is subjected to chromium plating, so that the contact surface is not easily worn even when the packing is brought into contact with a high surface pressure. Therefore, it is possible to maintain a smooth surface state, maintain a stable sealing state, and prevent foreign matter such as dust from entering and moisture from entering. Moreover, generation | occurrence | production of rust can be prevented by performing chromium plating processing. Thereby, the bar-type rotation gate apparatus excellent in dustproofness and waterproofness can be provided.

It is a perspective view which shows the bar-type rotation gate apparatus which concerns on this embodiment. It is sectional drawing which shows the structure around the rotating shaft of a rotary body, and is a figure which shows the state in which the rotary body and the rotary shaft were integrated. It is sectional drawing which shows the structure around the rotating shaft of a rotary body, and is a figure which shows the state which the rotary body and the rotating shaft isolate | separated. It is a disassembled perspective view around the rotating shaft of a rotary body. It is a figure which shows a rotating shaft. It is a figure which shows a locking member. It is a top view which shows schematic structure of a coke oven equipment.

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.
FIG. 1 is a perspective view showing a bar-type rotary gate device 100 according to this embodiment. The bar-type rotary gate device 100 includes a gate main body 1 provided with a status display lamp 1a, a rotary body 2 rotatably provided on the gate main body 1, and three bars 3 fixed to the rotary body 2. Prepare. The rotating shaft 4 of the rotating body 2 is disposed so as to be inclined downward by 45 degrees and is configured to be allowed to rotate by 120 degrees. And when the rotary body 2 rotates 120 degree | times, the bar 3 located in the uppermost part becomes horizontal.

  When the bar-type rotary gate device 100 configured as described above is installed at an appropriate position, an entrance / exit passage is formed by the gate body 1 on the side from which the bar 3 protrudes. Then, for example, when the user holds the IC card over a reading unit (not shown), the controller authenticates the ID recorded on the IC card and determines whether the user is permitted to pass or not. When the passage of the user is not permitted, the gate device 100 regulates the rotation of the rotating body 2 according to an instruction from the controller. In this case, the user cannot pass because the horizontal bar 3 does not move. When allowing the user to pass, the gate device 100 allows the rotating body 2 to rotate 120 degrees according to an instruction from the controller. In this case, the user can pass by pushing the horizontal bar 3.

  2 and 3 are cross-sectional views showing the configuration around the rotating shaft 4 of the rotating body 2. FIG. 4 is an exploded perspective view around the rotating shaft 4 of the rotating body 2. A plate-like frame 5 is fixed to the gate body 1 and a cylindrical bearing case 6 is welded and fixed so as to penetrate the frame 5. Although not shown in the drawings, the back surface 5a of the frame 5 is provided with a lock mechanism linked to the rotating shaft 4 to restrict the rotation of the rotating body 2 or allow it to rotate 120 degrees as described above. Configured as follows.

  The rotating shaft 4 is inserted into the bearing case 6. Here, as shown in FIG. 5, the rotating shaft 4 has a flange 4a, and has a small diameter portion 4b on the front end side and a large diameter portion 4c on the rear end side in front of the flange 4a. In this specification, the front end and the front refer to the rotating body 2 side. The outer peripheral surface of the small-diameter portion 4b of the rotating shaft 4 is subjected to chrome plating in a predetermined range from the vicinity of the step with the large-diameter portion 4c to the front, thereby forming a chrome-plated surface 7 having a thickness of about 100 μm. . Chrome plating has excellent corrosion resistance, and also has excellent wear resistance because the plating layer has a high hardness and a low friction coefficient.

  Needle bearings 8a and 8b are provided inside the bearing case 6, and the large-diameter portion 4c of the rotating shaft 4 is rotatably supported. In addition, annular packings 9a and 9b are attached to the chrome plated surface 7 of the rotating shaft 4 inside the bearing case 6 in front of the needle bearing 8a, that is, on the rotating body 2 side of the needle bearing 8a. The front packing 9a is mainly installed as a dust seal, and the rear packing 9b is mainly used as an oil seal. These packings 9a and 9b prevent foreign matter such as dust and water from entering and prevent grease leakage. . A grease spacer 10 is provided between the packing 9b and the needle bearing 8a. Further, a grease nipple 11 for injecting grease with a grease gun is attached to the bearing case 6 at the position of the grease spacer 10.

  A packing 12 is attached to the large-diameter portion 4c of the rotary shaft 4 so as to be adjacent to the flange 4a inside the bearing case 6 and behind the needle bearing 8. The packing 12 is mainly installed as an oil seal and prevents leakage of grease.

  As described above, two rows of packings 9a and 9b, grease spacers 10, two rows of needle bearings 8a and 8b, and packing 12 are provided in the bearing case 6 from the front. The front end and the rear end are sealed by cap-shaped packing retainers 13a and 13b. The packing seal 13b on the rear side has an annular portion 13c that enters the bearing case 6, and the annular portion 13c enters between the inner peripheral surface of the rear end of the bearing case 6 and the end surface of the flange 4a of the rotary shaft 4 to provide packing. Press 12 In addition, since the surface pressure with respect to the bearing case 6 of the packings 9a, 9b, and 12 is strong, the packings 9a, 9b, and 12 are not detached from the bearing case 6 without the packing pressers 13a and 13b.

  The rotating body 2 is fixed to the front end of the rotating shaft 4. Three holes 2 c for inserting and fixing the bar 3 are formed on the surface of the rotating body 2. The rotating body 2 has an insertion hole 2a through which the rotating shaft 4 is inserted, and a lock member 14 that fixes the rotating shaft 4 and the rotating body 2 from the front side of the rotating body 2 is attached. As shown in FIG. 6, the lock member 14 includes a tubular member 15 having a flange portion 15 a and a ring-shaped outer ring member 16 disposed on the outer peripheral surface of the inner ring portion 15 b of the tubular member 15. The tip outer peripheral surface of 15b and the inner peripheral surface of the outer ring member 16 are respectively tapered surfaces. As shown in FIGS. 2 and 3, the rotating shaft 4 is inserted into the insertion hole 2 a of the rotating body 2, and the lock member 14 is inserted into the receiving hole 2 b from the front side of the rotating body 2, The front end of the rotating shaft 4 is inserted. In this state, when the cylindrical member 15 is tightened to the rotating body 2 side by the bolt 17 attached to the flange portion 15a, the tightening force (see arrow X in FIG. 6) is applied to the inner diameter side and the outer diameter side via the tapered surface. (Refer to the arrow Y in FIG. 6). That is, due to the action of the tapered surface, the inner ring portion 15b attempts to reduce the diameter and the outer ring member 16 attempts to expand the diameter. Thus, the inner ring portion 15b is pressed against the outer peripheral surface of the front end of the rotating shaft 4, and the outer ring member 16 is pressed against the inner peripheral surface of the rotating body 2, so that the rotating body 2 and the rotating shaft 4 are firmly frictionally fastened.

  Hereinafter, how to assemble each component will be described. Needle bearings 8 a and 8 b are mounted inside the bearing case 6 fixed to the frame 5. In this state, grease is applied to the inner surface of the packing 12 and attached to the vicinity of the flange 4a of the rotating shaft 4. The rotating shaft 4 to which the packing 12 is attached is inserted into the bearing case 6 from the back surface 5a side of the frame 5, and is inserted into the needle bearings 8a and 8b. The large diameter portion 4c of the rotating shaft 4 is formed by the needle bearings 8a and 8b. Is supported rotatably. Depending on the type of the packing 12, an assembly method in which the packing 12 is first attached to the inside of the bearing case 6 may be used. Thereafter, a cap-shaped packing retainer 13 b is fitted on the outer periphery of the rear end of the bearing case 6. Further, a lock mechanism (not shown) on the back surface 5 a of the frame 5 is linked to the rear end of the rotating shaft 4. In this case, for example, if the small-diameter portion 4b is not formed on the rotating shaft 4, the chrome plating surface 7 is about 100 μm thick. Therefore, when the rotating shaft 4 is inserted into the needle bearings 8a and 8b, the chrome plating is performed. The surface 7 interferes with the needle bearings 8a and 8b. On the other hand, in this embodiment, the small diameter part 4b is formed in the front end side of the rotating shaft 4, and the chromium plating surface 7 is formed in the small diameter part 4b, Therefore The rotating shaft 4 is inserted in the needle bearings 8a and 8b. Sometimes it can be avoided that the chrome plated surface 7 interferes with the needle bearings 8a, 8b. In other words, the step between the small diameter portion 4b and the large diameter portion 4c is set to be equal to or greater than the thickness of the chrome plating surface 7 (100 μm or more in the present embodiment). In addition, the stepped portion between the small diameter portion 4b and the large diameter portion 4c is also gently tapered to prevent damage to the inner peripheral surface of the packing 12 when the rotary shaft 4 is inserted into the packing 12. it can.

  Subsequently, a grease-applied grease spacer 10 is inserted into the bearing case 6 from the front end side of the rotating shaft 4 in a state protruding from the frame 5, and attached to the chromium plating surface 7 of the rotating shaft 4. Further, the packings 9 b and 9 a are inserted into the bearing case 6 from the front end side of the rotating shaft 4 and attached to the chrome plated surface 7 of the rotating shaft 4. In this case, since the front end of the rotating shaft 4 is tapered, it is possible to avoid damaging the inner peripheral surface when the packings 9a and 9b are mounted, and to prevent the sealing performance from being impaired. it can. Thereafter, a cap-shaped packing retainer 13 a is fitted on the outer periphery of the front end of the bearing case 6.

  Subsequently, as shown in FIG. 3, the front end of the rotating shaft 4 is inserted into the insertion hole 2 a of the rotating body 2. Then, the lock member 14 (cylindrical member 15 and outer ring member 16) is inserted into the accommodation hole 2b from the front side of the rotating body 2 and the positions of the rotating shaft 4 and the rotating body 2 in the circumferential direction are aligned. As described above, the rotating shaft 4 and the rotating body 2 are fixed and integrated by tightening the bolts 17.

  In the bar-type rotary gate device 100 described above, the contact surfaces of the packings 9a and 9b on the outer peripheral surface of the rotating shaft 4 are subjected to chromium plating so that the packings 9a and 9b can be contacted even at a high surface pressure. The surface can be made hard to wear. Therefore, it is possible to maintain a smooth surface state, maintain a stable sealing state, and prevent foreign matter such as dust from entering and moisture from entering. Moreover, generation | occurrence | production of rust can be prevented by performing chromium plating processing. Thereby, the bar-type rotation gate apparatus excellent in dustproofness and waterproofness can be provided. If the chrome-plated surface 7 is worn due to long-term use, etc., it is possible to continuously utilize the rotating shaft 4 by disassembling and performing chrome-plating again.

  Moreover, when fixing the rotating shaft 4 and the rotary body 2, the structure which forms a keyway in the front-end outer peripheral surface of the rotating shaft 4, and fits a key is also considered. However, if a key groove is formed on the outer peripheral surface of the front end of the rotating shaft 4, when the packing 9b, 9a is inserted from the front end side of the rotating shaft 4 during assembly, the key 9 has an acute shape of the packing 9a, 9b. The inner surface may be damaged. On the other hand, in this embodiment, the lock member 14 is mounted from the front side of the rotating body 2, and the lock member 14 generates both surface pressures by generating surface pressure on the outer peripheral surface of the rotating shaft 4 and the inner peripheral surface of the rotating body 2. Is configured to be fixed. That is, since the outer circumferential surface of the rotating shaft 4 remains smooth without forming irregularities such as key grooves, when the packing 9b, 9a is inserted from the front end side of the rotating shaft 4, the packing 9a, 9b It is possible to avoid damage to the inner peripheral surface.

  Next, an installation example of the bar-type rotary gate device 100 to which the present invention is applied will be described. In the present embodiment, the bar-type rotary gate device 100 is installed in order to limit entry to and exit from the coke oven facility in the steelworks. There are many dusts and water droplets such as coal, coke, iron ore, etc. in the steelworks, and mere outdoor specifications are not sufficient, and sufficient measures against dust and water droplets are required as in the above-described embodiment.

  FIG. 7 is a plan view of a coke oven facility in which an A furnace 101 and a B furnace 102 are arranged with a coal tank 103 interposed therebetween. An extruder 104 and a coke oven carbonization chamber diagnostic / repair device DOC (Doctor of Coke Oven) 105 are disposed on one longitudinal side of the A furnace 101 and the B furnace 102, and a guide wheel 106 and a coke car (not shown) are disposed on the other longitudinal side. Fire extinguishers are arranged. These carts such as the extruder 104, the DOC 105, the guide wheel 106, and the like can travel along the longitudinal direction of the A furnace 101 and the B furnace 102 as indicated by arrows in FIG. Coke that has been carbonized in the carbonization chambers of the furnaces 101 and 102 is extruded by an extruder 104, and the extruded coke is guided to a coke car or a fire extinguisher by a guide wheel 106 located on the opposite side.

  A coal charging vehicle (not shown) is disposed on the coke oven. Coal charging vehicles can run on coke ovens.

  A platform 108 is provided along both sides of the A furnace 101 and the B furnace 102. The platform 108 is used when an operator performs work such as furnace repair and charcoal cleaning or gets on each carriage. In the present embodiment, the bar-type rotary gate device 100 is installed at the entrances and exits of the platforms 108 to restrict entry and exit to the platforms 108. In the illustrated example, the bar-type rotary gate device 100 is installed at the entrance / exit of the platform 108, but a bar is also provided at the entrance to each carriage such as the extruder 104, the DOC 105, the guide car 106, and the coal charging car. A rotary gate device 100 may be installed.

  The bar-type rotary gate device 100 can be wired or wirelessly communicated with the controller 201 and restricts entry / exit to the platform 108 in accordance with an instruction from the controller 201. In addition, an entrance / exit management server 200 for overall control of the controller 201 is installed. The entry / exit management server 200 is input with cart information indicating the operation status of each cart.

  For example, when any of the carts is traveling, the entry / exit management server 200 detects that the cart is traveling based on the cart information, and instructs the controller 201 to restrict the entry of the worker. In response to this, the controller 201 instructs each gate device 100 to restrict entry of the worker. Thereby, in the gate apparatus 100, since rotation of the rotary body 2 is controlled, the horizontal bar 3 does not move and the operator cannot enter. At this time, the status display lamp 1a is lit in red so that the worker can visually recognize that entry is restricted. Further, when there is an operator on the platform 108, the entrance / exit management server 200 may be provided with an interlock mechanism that disables traveling of each carriage.

  Further, when none of the trolleys is traveling, the entrance / exit management server 200 detects that the trolley is not traveling based on the trolley information, and instructs the controller 201 to accept the operator's entrance. At this time, the status display lamp 1a is lit in yellow so that the worker can visually recognize that admission can be accepted.

  In a state where admission can be accepted, if the operator holds the IC card over a reading unit (not shown), the controller 201 authenticates the ID recorded on the IC card and allows or disallows the entry of the worker. Determine. When allowing the worker to enter, the gate device 100 allows the rotating body 2 to rotate 120 degrees according to an instruction from the controller 201, so that the worker can enter by pushing the horizontal bar 3 forward. it can. At this time, the status display lamp 1a is illuminated in green so that the operator can visually recognize that the ID authentication is OK.

  When a worker enters the platform 108, the ID and the like of the worker are centrally managed by the entry / exit management server 200.

  In addition, the participation from the platform 108 is in a state where the participation can be accepted at all times, and the participation is possible immediately by ID authentication. That is, when the worker holds the IC card over a reading unit (not shown), the controller 201 authenticates the ID recorded on the IC card and permits the worker to participate.

  As mentioned above, although this invention was demonstrated with various embodiment, this invention is not limited only to these embodiment, A change etc. are possible within the scope of the present invention. For example, the shape and size of the gate main body 1 of the bar-type rotary gate device 100, the number of the bars 3, and the like are not limited.

  1: gate body, 1a: status display lamp, 2: rotating body, 2a: insertion hole, 2b: receiving hole, 2c: hole, 3: bar, 4: rotating shaft, 4a: flange, 4b: small diameter part, 4c : Large diameter portion, 5: fixed frame, 5a: back surface, 6: bearing case, 7: chrome plated surface, 8a, 8b: needle bearing, 9a, 9b: packing, 10: spacer for grease, 11: grease nipple, 12 : Packing, 13a, 13b: packing presser, 14: lock member, 15: cylindrical member, 15a: flange, 15b: inner ring part, 16: outer ring member, 17: bolt, 100: bar-type rotary gate device

Claims (2)

A bar-type rotary gate device comprising a gate body, a rotating body rotatably provided on the gate body, and a bar fixed to the rotating body,
A rotating shaft of the rotating body;
A cylindrical bearing case provided in the gate body and through which the rotating shaft is inserted;
A bearing provided inside the bearing case and rotatably supporting the rotating shaft;
A plurality of rows of packings arranged on the rotating body side of the bearing inside the bearing case and mounted on the outer peripheral surface of the rotating shaft;
The rotary shaft has a large diameter portion supported by the bearing, and a small diameter portion to which the plurality of rows of packings are attached,
A bar-type rotary gate device, characterized in that chromium plating is applied to an outer peripheral surface of the small-diameter portion of the rotary shaft and a contact surface of the plurality of rows of packings. The rotating body has an insertion hole through which the small diameter portion of the rotating shaft is inserted,
A lock member for fixing the rotary shaft and the rotary body is mounted from the front side of the rotary body, and the lock member applies a surface pressure to the outer peripheral surface of the small-diameter portion of the rotary shaft and the inner peripheral surface of the rotary body. It is configured to fix the rotating shaft and the rotating body by generating ,
2. The bar-type rotary gate device according to claim 1, wherein the outer peripheral surface of the small-diameter portion of the rotary shaft and the portion inserted through the insertion hole is not subjected to chrome plating .

Images