JPS6337091A - Lifting drive for elevator body - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Industrial application field: Suekan F! In order to drive the conveyor body at an effective rate, A mainly runs by meshing a rotating wheel including a large number of rollers that play an equal role and a rack gear arranged at a pitch that matches the circular pitch of the rollers of the rotating wheel. This invention relates to a drive device suitable for a VC for lifting/lowering drives.

Conventional technology: Conventionally, the rack-binion interlocking drive system has been widely used in temporary lifting equipment, such as various types of lifts and automatic lifting work scaffolding equipment.
It is widely used as the most secure method. Most of them are rack gears formed by cutting,
Since gears that mesh with this are used, the processing cost increases.

In any case, the rank gear is attached to the wound surface of a post or tower, so it needs to be long.Moreover, since the tower etc. are used by adding split type gears, it is necessary to match the pinch of the gear. Therefore, it is inevitable that production costs will increase. Furthermore, in order to ensure smooth engagement between the rack gear and pinion gear, it is necessary to apply a lubricant (for example, grease) to ensure smooth operation. In this case, it is easy to be affected by the weather, and the application of lubricant is often neglected, resulting in wear and tear and failure.0Also, as a mesh drive system that does not use rack gears for cutting teeth, For example, some use pin rack gears.However, in this case too, the pinion gears are cutting teeth, and in the case of pin rank gears, the pins must be arranged and fixed with a specified pinch, so the processing cost is high. Moreover, in the era of meshing, if there is a pitch deviation, #J will be damaged, and the movement of the lifting body (() will be transmitted, causing discomfort to the occupants, and there will be severe wear and tear on the gears. .

Of course, it is necessary to apply lubricant to the mating areas.

As a method that solves this problem and enables effective elevating drive with a relatively simple configuration, a horizontal member with an approximate circular arc surface is attached between two vertical members at a predetermined pitch, and the frame is integrally assembled. A drive system in which a guide support body is meshed with an impeller having a large number of rollers arranged at a circumferential pitch that matches the horizontal pitch of the guide support, and the rollers of the impeller are engaged while rolling. Between the starters (Special Public Service 55-4547)
No. 1).

However, in this method, the guide support corresponding to the rack gear is constructed so that the vertical member also serves as the guide rail, so although it is reasonable, the horizontal member of this guide support (
In order to make the rollers of the impeller (substantially the pinion gear) rollingly engage with the rack gear (substantially the teeth of the rack gear), the guide rails provided on the vertical members on both sides should be must be made to engage the idle roller, and if this drive mechanism is incorporated into the lifting body, it will be bulky, and if it is a relatively small lifting device, the mounting space will be small or it will be difficult to mount it from the support part. This is often inappropriate, as the overhang length of the loading platform becomes longer and the frame of the elevator becomes larger accordingly.

Purpose of the invention: The present invention solves certain problems and simplifies the meshing structure of the relocation meshing drive groove without sacrificing the advantages thereof, so that the meshing drive part can be driven smoothly without being bulky. The goal is to propose a device.

Structure of the Invention: In order to achieve the above object, the present invention fixes a rack gear to the front surface of a support body provided with at least two parallel rails, and guides the rack gear by the guide rails of the support body. The moving elevating body is provided with a rotary body driven by distributing a plurality of rolling rollers, and in an apparatus in which the rollers of the rotary body and the rack gear are engaged with each other to drive the elevating body, the rack gear is attached to the main member, which has a cross-sectional shape and is fixed along the front surface of the support.
The part surrounded by the short and long sides of the letter is an open type on the front side, with teeth formed by bending a metal plate attached at a predetermined pitch.
The rolling rollers are each supported by a plurality of shaft pins distributed and fixed at a predetermined circular pitch on the front surface of the face plate that connects to the output shaft of the rotating body, and the transfer is carried out from the open side of the rack gear. The reason is that the rollers are interposed between the teeth and mesh with each other.

Note that the roller for maintaining the mesh between the ff1=filJ roller of the rotating body and the rack gear is located at a position slightly away from the rotating body mesh 5 on the rear side of the main member that supports the rear of the toothed portion of the guide rail. The structure is such that the rolling rollers and the teeth are in contact with each other at two places, upper and lower, so that the meshing state between the rolling roller and the teeth is maintained, and the rear surface of the main member forming the rack gear also serves as a guide surface.

With such a configuration, in a device that operates up and down using a relocation mesh drive system, these mechanisms are arranged symmetrically at appropriate intervals on the left and right, and rotating bodies are attached to both ends of a single wooden drive shaft, for example, and the rollers of each rotating body are mesh with the teeth of the rack gear, respectively, and insert the power transmission groove with the intermediate part of the drive shaft! so that it receives more power and is driven up and down.

In this case, since it is possible to have a structure in which the parts can be directly engaged and driven, the structure can be used for half an hour, and assembly is easy.

Because of this, the overall structure can be easily made lighter. In particular, drive 1
(2) Since it is miniaturized, it can be incorporated with low bulk as a drive device for a small lift or similar device.

Furthermore, the main member is used as a guide rail by curving the base side while keeping the direction of engagement constant.
For example, it can be moved in a range from vertical to horizontal.
It becomes possible to change the direction and move the lJ body (elevating body). Of course, this direction change is possible by arranging the movable body parallel to the guide rail that guides and supports it. Therefore, the moving body (carrier) can be continuously moved from the upright moving section to the inclined moving section or from the upright moving section to the horizontal moving section.

Embodiments: Hereinafter, embodiments of the apparatus of the present invention will be described in detail with reference to the drawings.

What is shown in FIGS. 1 and 2 is the most basic type of lifting drive device, the Ichinomiya model, which is incorporated into a lift for temporary construction work. It) has guide rail frames erected over the constructed framework scaffolding, etc., and two wooden guide rails t2) +21 are arranged in parallel at appropriate intervals, and these are interconnected by horizontal members (3). The horizontal members (3) are integrally framed together, and frames (4) are provided at appropriate locations of the horizontal members (3) to protrude to the rear side, and connections attached to the ends of the frames (4) are provided. The frame scaffold (3) l/I: is designed to be fixed to the attached horizontal bar by means of the metal fittings (6). Of course, it is made to a predetermined length and is added to the ends of the guide rails 12+121 using, for example, a fitting type joint. A rolling mesh type rack gear (10) is attached to the front surface of the guide rail frame 11) having such a configuration using the front surface of the horizontal member (3) in parallel with the guide rail (2).

As shown in Fig. 1 and Fig. 2, the rack gear (lO) is made by bending a steel plate into a bevel shape, with the - side being longer than the other side, and the tip of the long side (16 parts) being bent. In the range surrounded by the main member in) bent to an appropriate length toward the dorsal gyrus side, the main member in) has a shape, and the long side l11) and short side (!1) of this main member (11). This rack gear (10) consists of tooth pieces t+2 which are bent and formed from steel plates welded at a required pitch.The main member H is formed into an L-shaped cross section with a lip, and its long sides (llH and Short side (IL
By welding the tooth piece f+2 on two sides to form an integral VC, the overall rigidity is increased. Each tooth piece 02)
is an approximate circular arc surface (a curved surface formed by a cycloid curve) on both the top and bottom! IC type housing, the front side is attached in an open state, and between each tooth piece there is a space where a rotating body (rolling meshing roller 37 arranged in one row) connected to a drive machine equipped with an elevating body, which will be described later, can move in and out. Tooth pieces (12) are arranged at a pitch that matches the inner circle pitch of the rotary roller so as to form the entire surface.

On the front side of the guide rail frame Il described above, a frame on the elevating body side is mounted on the guide rail +21121 so that the guide rollers (22 are in contact with each other in the vertical position), and a loading platform or a cage is mounted on this frame @l. (Ministry of Illustration F8
) is attached. The 7 frame factor)'/C of this elevating body (a) is attached with a loading platform in the case of a lift, and a cage (not shown) in the case of an elevator for transporting personnel, materials, etc. The drive unit 4 for raising and lowering this rising and falling body temperature is directly connected to the output shaft V of the reduction gear I# machine (to) installed on the platform support frame 231 of the rising and falling body temperature, and a rotating body drive machine is attached. . A plurality of (6 in the example) teeth of the above-mentioned rack gear (lO) are attached to the face plate H of this rotary body (the country has a central boss fixed to the shaft) so that the pitch of each tooth piece α of the above-mentioned rack gear (lO) is a circular pitch. ) support bins (1η) are arranged, and each support bin j
17) K is attached with a roller (!η) that rolls and engages with the teeth (12) of the hook gear (lO).

Each of the rollers (17) of this rotating body (10) is arranged to mesh with the rack gear tlol provided with the front surface (C attached) of the guide rail frame 11 with the teeth facing sideways, with the rotation axis orthogonal to the rack gear tlol, The main member (rack gear X10) of the elevating frame (rack gear
Outside the short side t+71 of Ill.

The side surfaces are brought into contact with each other as guide surfaces O4, and meshing with the rolling meshing rollers (lη and teeth !12) is maintained. If the auxiliary roller is missing, the rack gear (10) 7
) Rack gear for guide surface tl:llK (10)
Rotation f + (+61) Make it possible to adjust the movement so that the engagement and depression of the The rack gear fixed to the rail frame Ill Ill!
From the front side of the rolling meshing roller (1η) can be inserted and meshed between the toothed parts and assembled, and the part is assembled with low bulk (therefore, the guide rail 12) 12
After mounting the lifting claim (211) by abutting the guide rail frame 2F22 on each of the guide rail frames 2F22 and 211, the moving parts can be easily assembled and adjusted.

This rack gear (10) has an open front side f1Mvc
l'! ! For example, as shown in Fig. 3, the teeth can be arranged so that their orientation is 90° shifted from the previous example, and the pinch of the teeth can be maintained at a predetermined size to remove the main member as required. It is curved with a radius of , and of course it is installed on the guide rail frame + 11
If the guide rail (2) and the guide rail (2) are similarly curved, and if the rotary shaft for driving attached to the elevating body (sha) is also placed at a position corresponding to the rack gear, the tooth (l) The rotating body (+5) and the rolling engagement roller (Iη) are in rolling engagement with each other without being hindered, and the direction can be changed and driven smoothly.

Therefore, in addition to lifting up and down in an upright state, three-dimensional conveyance is possible, such as moving upright in the middle of lifting and lowering, or up to a required height, and then moving in the direction of the groove. A pair of such curved rank gears and an idle rail frame supporting them are erected symmetrically at a required interval, and an elevating frame is mounted on each of the double-edged idle rail frames. In addition, if a long cargo platform is mounted so that it can be kept horizontal at all times, it becomes possible to construct a long-span elevator that can move in three dimensions.

According to the device of the present invention, as shown in Fig. 4, the guide rail frame (1) is supported on the frame structure (frame scaffolding, etc.) (A) in the above manner, and a pair of guide rail frames (1) are separated by a required distance lIt. A long loading platform (
In a long-span elevator constructed by constructing a long-span elevator, attach all rotating bodies 00 at both ends to the line shaft t311 installed inside the loading platform, and when driving up and down by meshing with the rank gear (101) as described above. The purpose can also be achieved with an extremely simple structure.

Furthermore, according to the present invention, the guide support for the elevating body is not limited to the above-mentioned structure, but may be something like a framed tower, as long as the relationship between the guide rail and the rack gear can be maintained under a constant condition. There may be.

Effects of the Invention: According to the drive device of the present invention, the rack gear assembled on the @(l1 side) of the guide support is a front-open type, and the rotating body equivalent to a pinion that meshes with this tooth is assembled from the front side. , the assembly work is easy and the drive #
It is possible to reduce the bulk of the JJI11, which makes it possible to simplify and make the IJI11 lighter, and even if it is a rank gear production number, the main component and tooth piece are attached by welding etc. during the work. Since this can be done from the open side, it can be processed reliably and efficiently, and in addition to being used straight or frozen, it can also be driven normally in places where the structure is curved from an upright part without changing the engagement position with the rotating body. , which can be effectively used for three-dimensional transportation.

[Brief explanation of the drawing]

Fig. 1 is a front view of an embodiment of the device of the present invention, Fig. 2 is a ■-■ view of Fig. 1, and Fig. 3 is a device in which the lifting guide support is curved and can be displaced from an upright state to a horizontal state. FIG. 4 is a perspective view of an embodiment used in a long span elevator. 11)...Guide rail frame (2)...Guide rail (3)...Horizontal member (10)...
Rack gear (1st main part (11)
...Long side of main member (,'6...Short side of main member
α ... tooth piece (1 ■ ... guide surface
tea...rotating body (country...
Plate (+7)...Support pin (1η...Rolling engagement roller (A)...Elevate/lower Main f211...
Lifting frame (3)...Guide roller■...
・Deceleration motor: Output shaft: η: Auxiliary roller: -: Long loading platform 01): Line shaft: Frame structure Figure 3 procedural amendment (voluntary) 1985 December 1: Name of invention on 2nd! 4. Relationship to the case of a person who corrects a lifting drive device that does not lower
Atsushi Koshi Bu Jun Yuyo Osamu Person Date Showa Year Month Date correction subject Column for detailed explanation of the invention of Man #1 Shoes. (1) The following sentence will be added between lines 8 and 9 of page 11 of the specification.

Claims (1)

[Claims] A rack gear is attached to the front surface of a support body equipped with at least two guide rails, and an elevating body that moves guided by the guide rails is equipped with a rotating body that is driven by distributing a plurality of rolling rollers, In this device that is driven up and down by engagement between the rollers of the rotary body and the rack gear, the rack gear is attached to a main member having an L-shaped cross section and fixed along the front surface of the support body. Teeth made by bending a metal plate are integrally arranged at a predetermined pitch in the part surrounded by the sides and long sides to form an open front side, and the rotating body is attached to the front side of the face plate attached to the output shaft connected to the drive machine. A lifting device characterized in that a plurality of rolling meshing rollers are arranged at a predetermined circular pitch, and the rolling rollers are interposed between the teeth and meshed from the open side of the rack gear. Body lifting device.