JPH066387U - Sprocket mounting structure for vertical conveyor - Google Patents

Abstract

(57) [Abstract] [Purpose] To prevent the roller chain wound around each sprocket from hitting the sprocket. [Structure] A left and right elongated substrate 1, columns 2 and 2 standing upright on the left and right sides of the substrate 1 at a predetermined interval, and arranged on the left and right columns 2 and 2 and along the columns 2. A roller chain 8 fixed to the upper part of the column 2, an upper sprocket 9 provided on the carriage 5, and a spherical bush member 20 displaceable in any direction on the upper part of the column 2. The sprocket 10 installed via the interposition, the sprocket 12 provided on the substrate 1, the drive sprocket 15 fixed to the output side of the drive motor 13 provided on the substrate 1, and the lower sprocket 17 provided on the carriage 5 are sequentially passed to the substrate 1 side. Make a connected structure. [Effect] The spherical bush member allows the sprocket to be freely displaced in any direction, and prevents the roller chain from hitting the sprocket.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a vertical transfer device that is installed at a construction site or the like and lifts and transfers a load.

[0002]

[Prior art]

 As shown in FIG. 1, a conventional vertical transfer device has columns 32 and 32 standing upright on the left and right sides of a substrate 31 having a slender shape on the left and right, and between the left and right columns 32 and 32 along the column 32. A carriage 33 is provided so as to be movable up and down via a roller 33a, and a luggage A is placed on the carriage 33. Then, the wire rope 34 fixed to the upper part of the support column 32 is sequentially passed through a pulley 35 provided on the upper part of the carriage 33, a pulley 36 provided on the upper part of the support column 32, and a pulley 37 provided on the substrate 31. It is connected to the drum 39 fixed to the output shaft of the drive motor 38 provided on the substrate 31, and by operating the drive motor 38, the wire rope 34 is wound and unwound, and the carriage 33 moves up and down. Is being moved. With such a vertical transport device, the drive motor 38 is operated to wind the wire rope 34 in and out of the drum 39, but when the wire rope 34 is wound, the wire rope 34 gradually winds. As the winding diameter increases, as the wire rope 34 is unwound, the wire rope 34 gradually unwinds, and the winding diameter gradually decreases. For this reason, the amount of movement of the vertical movement of the carriage 33 by one rotation of the drum 39 is different, and when the vertical movement of the carriage 33 is performed, the control of the drive motor 38 becomes complicated and the accuracy of the stop position of the carriage 33 deteriorates. There was a problem to do.

Therefore, in order to solve the above-mentioned problems, the applicant of the present application previously applied for the vertical transfer device shown in FIG. That is, a board 41 having an elongated shape on the left and right sides, left and right columns 42, 42 provided on the left and right sides of the board 41, a beam member 43 connecting the upper parts of the left and right columns 42, 42, and the left and right columns In a vertical conveyance device including a carriage 44 that can be raised and lowered between rollers 42 and 42 via a roller 44a, a roller chain 45 fixed to the upper portion of the support column 42 has an upper sprocket 46 provided on the carriage 44 and the support column 42. Sprocket 47 provided on the upper part of the sprocket, sprocket 49 provided on the substrate 41, drive sprocket 52 connected to the output side of the drive motor 50 provided on the substrate 41 via a speed reducer 51, and fixed to the substrate 41 To the base plate 41 through the sprocket 53 provided on the bracket 48 and the lower sprocket 54 provided on the carriage 44 in sequence. The drive motor 50 is driven forward and backward to rotate the drive sprocket 52 forward and backward, whereby the carriage 44 is moved up and down via the roller chain 45. . By configuring the vertical transport device in this way, the amount of movement of the roller chain 45 during one rotation of the drive sprocket 52 is always constant, and the vertical movement of the carriage 44 is simply controlled by controlling the rotation of the drive motor 50. It is possible to improve the stop position accuracy of the carriage 44 by various controls.

[0004]

[Problems to be solved by the device]

 With the above-described vertical transport device, an upper sprocket 46 provided on the carriage 44, a sprocket 47 provided on the upper part of the support column 42, and a sprocket 49 provided on the substrate 41 are arranged between the sprockets shown in FIG. It is ideal that each sprocket be arranged in a straight line as shown in FIG. 10, but if the sprocket 46 and the sprocket 49 are displaced with respect to the sprocket 47 as shown by broken lines in FIG. The roller chain 45 wound around the sprockets is in a distorted state, the roller chain 45 is unevenly contacted with the sprocket 47, and local excessive stress or abnormal wear is generated in the roller chain 45, which may cause breakage. For this reason, in addition to improving the processing accuracy of each part, adjustment is performed by aligning each sprocket during assembly. However, in the vertical transfer device, since installation and disassembly are repeated frequently, adjustments such as alignment between each sprocket must be performed each time, which requires a lot of man-hours for the work. There was a problem. The present invention aims to solve these problems.

[0005]

[Means for Solving the Problems]

 In order to solve the above-mentioned problem, the present invention is to support columns 2 and 2 standing upright on the left and right with a predetermined interval, and to arrange the columns 2 and 2 on the left and right, and to move up and down along the column 2. And a carriage 5, which has one end in the longitudinal direction fixed to an upper fixed portion of the column 2, and the other end in the longitudinal direction of the roller chain 8 provided on the carriage 5. The upper sprocket 9 and the column 2 The sprocket 10 is mounted on the upper side of the column with a coupling mechanism that is freely displaceable in any direction, the sprocket 12 is provided on the lower fixed portion of the column 2, and the sprocket 12 is provided on the lower fixed portion of the column 2. A drive sprocket 15 fixed to the output side of the drive motor 13 and a lower sprocket 17 provided on the carriage 5 are sequentially connected to a fixed portion on the lower side of the column 2.

[0006]

[Action]

 Since the sprocket is mounted on the upper side of the column with the interlocking mechanism that allows the sprocket to be displaced in any direction, the sprocket is displaced in any direction when the position of each sprocket is displaced, and the roller chain does not hit the sprocket. Can be prevented.

[0007]

【Example】

 First, the outline of the vertical transfer device of the present invention will be described. As shown in FIGS. 3, 4 and 5, a substrate 1 having an elongated shape is provided on the left and right sides, and columns 2 and 2 are provided on both left and right ends of the substrate 1, respectively. To stand. The column 2 is formed by vertically stacking column bodies 3 formed in a rigid frame structure from three rod members 3a and a connecting member 3b connecting the three rod members 3a. Then, the upper portions of the left and right columns 2, 2 are connected by a beam member 4, and a carriage 5 is arranged between the left and right columns 2, 2 so as to be vertically movable. The carriage 5 is composed of lifting bodies 6 and 6 respectively provided on the left and right having rollers 6a for rolling the rod member 3a, and a carriage body 7 arranged between the left and right lifting bodies 6 and 6. The luggage A is placed on the carriage body 7. Then, the other end in the longitudinal direction of the roller chain 8 for fixing one end in the longitudinal direction to the upper side of the column 2 is provided with the upper sprocket 9 provided on the upper part of the elevating body 6 and the sprocket provided on the upper part of the column 2. 10, a sprocket 12 provided on the base plate 1 which is a fixed portion on the lower side of the support column 2, a drive sprocket 15 fixed to the output shaft of a drive motor 13 provided on the base plate 1 via a speed reducer 14, and a base plate 1. The sprocket 16 provided on the fixed bracket 11 and the lower sprocket 17 provided on the lower portion of the lifting body 6 are sequentially connected to the bracket 11 via a spring 18.

In such a structure, when the drive motor 13 is driven in the forward and reverse directions to rotate the drive sprocket 15 in the forward and reverse directions, the roller chain 8 is moved and the carriage is moved through the upper sprocket 9 of the lifting body 6. 5 moves up and down. The roller chain 8 is connected to the bracket 11 provided on the substrate 1 via the spring 18 for the purpose of applying tension to the roller chain 8.

In addition, in the vertical transporting device configured as described above, it becomes possible to disassemble the substrate 1, the left and right columns 2, 2, the beam member 4, the carriage 5, etc., and the left and right columns 2, 2 are a plurality of columns. It can be disassembled into body 3. Therefore, the vertical conveyor can be easily installed at the construction site by assembling each member with a screw etc. when assembling and disassembling each member at the end of use. It can be easily transported to the construction site.

Next, the mounting structure of the sprocket 10 provided on the upper portion of the column 2 in the vertical transport device according to the present invention will be described with reference to FIGS. 6, 7, 8 and 9. In the above-described vertical transport device, the base end portion of the arm member 19 is horizontally fixed to the pillar body 3 stacked on the uppermost part of the upper portion of the pillar 2, and the tip end portion of the arm member 19 is arranged in the left-right direction (the left-right direction in FIG. 8). ), The opening hole portion 19a is formed horizontally. Then, the pin 21 is attached to the opening hole portion 19a with a spherical bush member 20 interposed therebetween as a connecting mechanism portion that can be displaced in any direction. As shown in FIG. 9, the spherical bush member 20 has a partially spherical convex side member 20a into which the pin 21 is press-fitted, and a spherical concave portion facing the convex side member 20a. The concave side member 20b is press-fitted into the hole 19a. By fitting the concave side member 20b and the convex side member 20a, the convex side member 20a can be displaced in any direction with respect to the concave side member 20b. Has become. Then, as shown in FIG. 9, the bracket 22 is attached to the pin 21, and the bracket 22 has a substantially U-shaped sprocket holding portion 22a, and the pin 21 is inserted and installed upright on the sprocket holding portion 22a. The sprocket 10 is rotatably attached to the sprocket holding portion 22a of the bracket 22 by a pin 23.

With this configuration, when the vertical transfer device is installed at a construction site, the upper sprocket 9 provided on the upper part of the lifting body 6, the sprocket 10 provided on the upper part of the column 2, and the substrate 1 are installed. Between each sprocket of the provided sprocket 12, as schematically shown in FIG. 11, for example, even if the upper sprocket 9 and the sprocket 12 are displaced with respect to the sprocket 10, the spherical bush member 20 allows the sprocket to be displaced in any direction. By changing the angle of the sprocket 10 in the direction of the rotation axis and winding the roller chain 8 around each sprocket as smoothly as possible, it is possible to prevent the roller chain 8 from hitting the sprocket 10 unevenly. It is possible to eliminate the breakage of the chain 8 and to eliminate the adjustment such as alignment between the sprockets during installation. it can.

[0012]

[Effect of device]

 By installing the sprocket on the upper side of the column with a connecting mechanism that allows it to be displaced in any direction, the sprocket can be displaced in any direction, and the roller chain hits the sprocket on the sprocket on the upper side of the column. As a result, the roller chain can be prevented from breaking and adjustments such as alignment between the sprockets during installation can be eliminated. Therefore, in a vertical transfer device in which installation and dismantling are repeated frequently, the number of man-hours required for installation can be greatly reduced, and work efficiency can be improved.

[Brief description of drawings]

FIG. 1 is a front view of a conventional vertical transport device.

FIG. 2 is a front view of a vertical conveyance device according to the applicant's application.

FIG. 3 is a schematic front view of the vertical transport device of the present invention.

FIG. 4 is a schematic side view of FIG.

FIG. 5 is a schematic perspective view of FIG.

FIG. 6 is a front view of a sprocket mounting portion in the vertical transport device of the present invention.

FIG. 7 is a side view of FIG.

FIG. 8 is a top view of FIG.

FIG. 9 is an exploded perspective view of a sprocket mounting portion of the present invention.

FIG. 10 is a schematic layout diagram of each conventional sprocket.

FIG. 11 is a schematic layout view of each sprocket according to the present invention.

[Explanation of symbols]

1 ... Substrate, 2 ... Post, 3 ... Post body, 3a ... Bar member, 3b
... connecting member, 4 ... beam member, 5 ... carriage, 6 ... elevator, 6a ... roller, 7 ... carriage body, 8 ... roller chain, 9 ... upper sprocket, 10 ... sprocket, 11 ... bracket, 12 ... sprocket, 13 ... drive motor, 14 ... reducer, 15 ... drive sprocket,
16 ... Sprocket, 17 ... Lower sprocket, 18 ...
Spring, 19 ... Arm member, 19a ... Opening hole, 2
0 ... spherical bush member, 20a ... convex member, 20b ... concave member, 21 ... pin, 22 ... bracket, 22a ... sprocket holding part, 22b ... block part, 22c ... hole part,
23 ... Pins, 31 ... Substrate, 32 ... Supports, 33 ... Carriage, 33a ... Rollers, 34 ... Wire ropes, 35, 3
6, 37 ... pulley, 38 ... drive motor, 39 ... drum,
41 ... Substrate, 42 ... Post, 43 ... Beam member, 44 ... Carriage, 44a ... Roller, 45 ... Roller chain, 4
6 ... Upper sprocket, 47 ... Sprocket, 48 ... Bracket, 49 ... Sprocket, 50 ... Drive motor, 5
1 ... Reduction gear, 52 ... Drive sprocket, 53 ... Sprocket, 54 ... Lower sprocket

Claims (1)

[Scope of utility model registration request] 1. Providing columns 2 and 2 standing upright on the left and right with a predetermined interval, and a carriage 5 that is disposed over the columns 2 and 2 on the left and right and is vertically movable along the columns 2. ,
The other end in the longitudinal direction of the roller chain 8 whose one end in the longitudinal direction is fixed to the upper side of the pillar 2 is connected to the carriage 5
, An upper sprocket 9 installed on the column 2, a sprocket 10 mounted on the upper side of the column 2 with a coupling mechanism portion that is freely displaceable in any direction, a sprocket 12 provided on a fixed portion on the lower side of the column 2, the column 2, the drive sprocket 15 fixed to the output side of the drive motor 13 provided on the lower fixed portion of the carriage 2, and the lower sprocket 17 provided on the carriage 5 are sequentially connected to the lower fixed portion of the column 2. A sprocket mounting structure for a characteristic vertical transport device.