JPH03200466A - Drive unit for travel body - Google Patents

Abstract

PURPOSE:To secure the smooth travel state over a long period of time by operating an oil feeding means to perform oiling when the travel frequency of a travel body counted by a travel frequency counting means reaches the specified value. CONSTITUTION:A laser optical device 2 is disposed on a flat plate like travel body 1, and two storage-type phosphors 3 are disposed in front of the device 2. These phosphors 3 are rotated to be moved in their positions between an exposure position E, which is the opposed position to a sample 4, and a read position Y, which is the opposed position to the laser optical device 2, and the light radiated from the phosphor 3 in the read position Y is received by a photoelectric transfer device 5 through the laser optical device 2. At this time, the travel body 1 is reciprocated to scan the whole surface of the phosphor 3. In this case, the frequency of the reciprocating motion of the travel body 1 is counted by a control device 18 on the basis of the output of a photo sensor 19, and when this frequency reaches the specified value, oil feeding means 17 are operated to perform automatic oiling.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a drive device for reciprocating a traveling body along a track surface. In particular, it relates to a drive device with means for supplying lubricating oil.

[Prior Art] Generally, in the above-mentioned drive device, a roller is provided on a running body, and while the roller is brought into contact with a raceway surface and rotated, the running body is moved back and forth on the raceway surface. There is. In this case, the roller is equipped with bearings to ensure smooth rotation, but if no other measures are taken, the life of the roller will be much shorter than the life of the bearing. Later, the raceway surface or the rollers may rattle due to wear or the like, which may cause problems such as noise and vibrations in the traveling body.

In order to avoid this, it is known to apply grease in advance to the contact area between the roller and the raceway surface.

However, in this method, after a short period of use, the grease is pushed out by the rollers and escapes from the contact surface, so the running body cannot run smoothly for a long period of time.

[Problems to be Solved by the Invention] As described above, in the conventional drive device for driving a traveling body, it is possible to eliminate wear on the rollers and raceway surfaces and allow the traveling body to run smoothly for a long period of time. I couldn't let it go.

The present invention has been made in view of the above-mentioned problems in conventional devices, and is directed to a traveling body drive device that reciprocates the traveling body while keeping rollers in contact with the track surface. The purpose is to enable smooth driving.

[Means for Solving the Problems] In order to achieve the above object, a driving device for a traveling body according to the invention of claim 1 includes a roller provided on the traveling body and in contact with a raceway surface, and a roller that is provided on the traveling body and contacts the raceway surface. a refueling means for supplying lubricating oil to the vehicle, a traveling number measuring means for measuring the number of times the traveling body has reciprocated; The present invention is characterized in that the control means for supplying oil is controlled at the right side.

The driving device for a traveling body according to the second aspect of the invention is characterized by the following points. That is, in the apparatus according to claim 1, in place of the number-of-travels measuring means, a traveling time measuring means for measuring the time during which the traveling object has traveled back and forth is provided, and in place of the control means, a traveling time measuring means is provided. The present invention is provided with a control means for operating the refueling it+ means to refuel based on the measured running time.

In the drive device according to claim 3, the first
The timing of the second refueling is matched to the timing at which the reciprocating movement of the traveling body is started.

A driving device according to a fourth aspect of the present invention is provided with four parts for resting on the raceway surface and collecting lubricating oil. These four parts are
A groove extending parallel to the raceway surface, a gutter-like support member disposed below the raceway surface and extending parallel to the raceway surface, etc. can be used.

[Function] In the drive device according to the first aspect, when the number of travels of the traveling body (1) measured by the travel M number counting means (photo sensor 19, control device 18) reaches a predetermined number of times, the refueling means (■ 7) to the orbital surface (13a, L3b, 14a, 1
4b) Lubricating oil is supplied to. As a result, the raceway surface and the roller (10a-10
c, 12a to 12c) is reduced, and P1 smooth running can be obtained over a long period of time.

In the drive device according to the second aspect, instead of measuring the number of times the traveling body travels, a traveling time measuring means (control device 18
) measures the travel time of the traveling body, and when it reaches a predetermined reference time, refueling is performed by the refueling means (17).

Refueling from the refueling means is not always performed when the traveling body is traveling, and the required amount is refueled during a relatively short period of time. For example, about 0.01 cc of lubricating oil is supplied every time the traveling body reciprocates 100,000 times.

In the drive device according to the third aspect, when the traveling body starts reciprocating movement, the first refueling is performed by the refueling means at the same time. The timing of the next refueling is measured based on this first refueling.

In the drive device according to the fourth aspect, the lubricating oil supplied onto the raceway surface is collected in the recess (groove 20, receiver plate 21).

[Embodiment] FIG. 1 shows an embodiment of a moving body motion device according to the first and third aspects of the invention. In particular, this embodiment
This is an embodiment in which the present invention is applied to a reading device for reading a latent image formed in an energy latent image carrier called an A-type phosphor or a stimulable phosphor.

First, a description will be given of the attitude device for a traveling body according to the present invention. 1) The overall configuration of the reading device δ described in 1) and 2 will be briefly described.

In the first factor, a laser optical device 2 is disposed on a flat traveling body 1. 11i of this laser optical device 2
On the l side (left side of the figure), there are two '? S product negative phosphor 3
It is placed. What is this MIA phosphor?

When radiation such as X-rays is irradiated on an area, energy is accumulated inside it, and when that area is then irradiated with stimulated excitation light such as a laser beam, the accumulated energy is released to the outside as light. It is a substance that has the property of being released. By rotating and moving in the direction of the arrow, these MfA phosphors 3 are moved between the exposing position KR, which is a position facing the sample 4, and the reading position Y, which is a position facing the laser optical device 2. It is designed to move position.

When the multilayer phosphor 3 is at the exposure position R, the sample 4 is irradiated with X-rays. The irradiated X-rays are diffracted by the sample 4, and the stimulable phosphor 3 is irradiated with the diffracted X-rays. This results in
An energy latent image corresponding to the X-ray diffraction image is formed within the stimulable phosphor 3. A stimulable phosphor 3 that has a latent image
are simultaneously rotated in the A direction and transported to the reading position Y.

When the stimulable phosphor 3 is transported to the reading position Y, the laser optical device 2 irradiates the stimulable phosphor 3 with laser light. As mentioned above, if energy is stored in the stimulable phosphor 3 in the portion hit by the laser beam, light is emitted from that portion. The emitted light passes through the laser optical device 2 and is received by the photoelectric conversion device 5, which is arranged in advance on the right side of the figure.

As will be explained in detail later, the traveling body 1 to which the laser optical device 2 is fixed is arranged in two directions parallel to the multilayer phosphor 3 and orthogonal to each other, that is, one direction of arrows B-B and one direction of arrows C- C It is designed to move in one direction. By this movement in both directions, the entire surface of the MIA phosphor 3 is scanned by the laser light emitted from the laser optical device 2, and the entire surface is read by the photoelectric conversion device 5.

Hereinafter, the traveling body I, and therefore the laser optical device 2, will be described above, lt!
The driving means for moving the F3-B- and C-C- directions will be explained.

A long plate-shaped metal base 6 and a thin plate-shaped substrate 7 placed on the base 6 at a slight distance are disposed below the traveling body 1.

A large number of annular coils 8 are fixed to the lower surface of the substrate 7 in parallel to each other, while magnets 15 (see FIG. 3) are fixed to the lower surface of the traveling body 1. Coil 8 has
A current is supplied from a power source (not shown), and a force is thereby generated between the coil 8 and the traveling body magnet 15. This force causes the traveling body 1 to reciprocate in one direction of arrow B-B. Further, the metal base 6, with the traveling body 1 placed thereon, is moved in the vertical direction as indicated by the arrow C-C- by a lifting means (not shown). B- of running body 1
By the horizontal reciprocating movement in one direction B and the upward or downward movement of the base 6 in one direction C-C, the traveling body 1 moves in the same direction.

As shown in FIG. 2, two horizontal rollers 10a and 10b that freely rotate around the water wheel axis are attached to the left side surface 9a of the traveling body 1 (the side facing the MM phosphor 3). ing. Also.

A bracket 11 is fixed to the side surface of the traveling body between each of the horizontal rollers, and one vertical roller 12a that rotates at zero peak around a vertical axis is attached to the bracket 11.
is installed. On the other hand, on the right side surface 9b, which is the side surface opposite to the left side surface 9a of the traveling body, there is one horizontal roller 1 in the center that rotates in a zero peak around the horizontal axis.
0c is attached. Also, its horizontal roller lo
Two vertical rollers 2b and 12C, which rotate at zero peaks around a vertical axis, are attached via brackets 11 so as to sandwich the vertical axis c.

As shown in FIG.
a, and on the other hand, the right water jTL roller 10
c is in contact with the horizontal track surface L3b formed on the right side of the base 6.

In addition, the roller 12a is in contact with the vertical track surface 14F1 formed at the left end of the base 6,
On the other hand, the upper light right vertical rollers 12b and 2c are in contact with the vertical track surface 14-b formed at the right end of the base 6. Since the traveling body magnet 15 and the base 6 are strongly attracted to each other by magnetic force, The traveling body 1 is attracted toward the base 6 by 11. Therefore, the water-qL roller ↓Oa, lob
, loc are pressed against the corresponding water turbine raceway surfaces 1:3a, 13b.

As can be understood from the above description, the traveling body 1 is supported at three points on the horizontal track surfaces 13a and 13b by the three V rollers 10a to loc, and furthermore the three V rollers 12a to 12C. It is supported by the ridge straight raceway surfaces 14a and 14b at three points. As a result, the traveling body l moves in the B-B- (water tank L) direction and in the C- direction.
(:, While moving in the (vertical) direction, the position of the traveling body I with respect to the water turbine track surfaces 13a, 13b and the vertical track surfaces 14a, 14b is always maintained at a constant position.As a result, the laser optical device 2! It becomes possible to maintain high accuracy in reading the stimulable phosphor 3 according to the method 2.

The laser optical device 2 reciprocates in the B-B- (horizontal) direction at a very high speed and the number of reciprocating fits is large. For example, if the time required for round trip is 0.5 seconds, 1
The same number of reciprocating movements for the sheets of stimulable phosphor 3 is I, 0
00 is the same. The water turbine rollers 10a to 10c, which undergo such high-speed reciprocating movement, are placed on the horizontal track surface 13a.
.
is contacted under appropriate /E force. Therefore, unless some measure is taken, wear will cause looseness between each roller and each raceway surface in a short period of time, resulting in
When the traveling body 1 runs, problems occur such as abnormal noises being generated and vibrations being generated in the traveling body 1, resulting in a decrease in reading accuracy.

In order to solve the above problems, this embodiment adopts the following configuration.

As shown in FIG. 1, an IB supply device 617 is provided at the hand end of the left water raceway surface 13a of the base 6'' via a bracket Y6. In addition, a cable is also supplied to the rear end of the right horizontal raceway surface 13b via the bracket 16. 111: 17 loaves are provided. These feeders 7111 2S 17 operate in accordance with commands from the control device 18, and turn the lubricating pad into a droplet shape to each raceway surface L.
3; Drop onto l and 13b. The amount of the same drop is set in an appropriate range depending on the area of each raceway surface, the nature of the lubricating force 11, etc., and can be set to about 0.01 CC, for example. Furthermore, the lubricant to be used is not limited to those with special properties, but preferably one with relatively high viscosity. This is because if the 2i soil is too low, the lubricating ill will be pushed out from the raceway surface in a short time.

A photosensor 19 is provided on the front end side of the base 6. This photosensor 19 outputs a pulse-like detection signal to the control device 18 when the traveling object 1 crosses it. That is, when the traveling body 1 makes one reciprocation in one direction 13-B, one pulse is output from the photosensor ↓9 to the control device 18.

The control device 18 stores a reference number of reciprocating movements, for example, 100,000 times (this is approximately the number of times the laser optical device 2 moves in one direction from B to B, which is necessary to read 100 sheets of stimulable phosphor). (equivalent to the number of round trips) is memorized,
It is subtracted by 1 based on the detection signal from the photosensor 19. When the traveling body 1 has reciprocated for the set number of reciprocating movements, a feed signal is sent from the control device 18 to both feed IT+ devices 17, thereby causing each feed? Only one drop of lubricant from the +b device 17 is applied to each horizontal raceway surface 13a,
13 b. Horizontal track surface 13a, 13
Lubrication dripped into b? 111 is pushed away by each of the horizontal rollers 10a-10b rolling on their track surfaces and automatically flows into each of the vertical track surfaces 14a, 14b as well.

When the traveling body 1 and therefore the laser optical device 2 move back and forth a predetermined number of times, each horizontal track surface 13
a, 13b and each vertical raceway surface l4a, 14b are automatically supplied with lubricating pads.

Each horizontal roller 10a-loc and each vertical roller 12a
~12c is given timely lubrication. Therefore, rattling does not occur in each roller and the raceway surface in a short period of time, and it becomes possible to maintain stable running of the traveling body 1 over a long period of time.

In FIGS. 2 and 3, the left horizontal track surface 13 a
A groove 20 serving as a recess for collecting dropped lubricant is provided on the right side and the left side of the right horizontal raceway surface 13b. These grooves 20 provide lubrication? ll+ is prevented from flowing out to places other than the orbital surface. In order to more reliably prevent the lubricant from flowing out, a receiver plate 21 is provided below the vertical raceway surfaces 14a and 14b on both the left and right sides as a recess for collecting the lubricant, as shown by chain lines in FIG. You can also leave it there.

FIG. 4 shows a main part of an embodiment of a driving device for a traveling body according to the second aspect of the invention. In this figure, the same members as those shown in FIG. 1 are given the same reference numerals, and their explanations will be omitted.

In this embodiment, an operating device 22 such as a keyboard is connected to the control device 18, and a start command signal (usually output by pressing a start switch) sent from the operating device 22 is Then, power supply to each annular coil 8 is started, and the traveling body l moves back and forth in the B-I direction (in one direction. In this case, the control device 18
A counter is built in in advance, and the counter starts counting in response to a start command signal S) from the operating device 22 described above. The control device 18 determines whether or not the counter value 1α has reached a preset refueling timing, and when the timing has been reached, each refueling means 17 is actuated to perform refueling. In this way, the horizontal rollers lOa, 10b, 10c and the vertical rollers 12a, 12b, 12c are lubricated and extracted in a timely and appropriate manner, and rattling is prevented on each roller and each raceway surface over a long period of time. Preventing it from occurring.

Regarding the method of setting the timing of the first same-day refueling from the refueling means 17, when the -1:J self start command signal is issued from the operating device 22, the first same-day refueling is performed. A control program can also be set. By doing this, when the traveling body l with the same +)fT is reciprocated, the traveling body l is immediately refueled at the predetermined refueling timing 11q.
Even if the roller movement is stopped, the next time the next movement resumes, the rollers will be refueled immediately, so there is no inconvenience that the rollers will not be refueled for a long period of time. The occurrence of the situation is resolved.

Although the supply itl+ means 17 is not limited to a particular configuration, for example, one shown in FIG. 5 can be used. Is this oil supply means 17 lubricating? An ib tank 24 in which 1l123 is stored, an elastic hose 25 whose one end is submerged in the lubricating tube 23, and a co-rotating roller 26 are connected. A large number of small rollers 27 are embedded in the lI+1 whitening 7E on the outer peripheral surface of the rotating roller 26, and these small rollers 27 are applied to the elastic hose 25 under appropriate pressure.
is in contact with.

When feeder cooling is sent from the control device 18, the rotating roller 26 rotates by an appropriate angle. This rotation causes
The small amount of lubricant in the elastic hose 25 is pushed by a small roller and sent to the right in the figure, and falls from the nozzle at the end of the hose.

Although the embodiments of M are described above with reference to the drawings, the present invention is not limited to these embodiments.

For example, in the above embodiment, the traveling body 1 is adapted to be moved by a magnetic driving means consisting of the coil 8 and the magnet 15, but the traveling body 1 may be driven by a driving means having any other configuration. .

The roller used in the above example is the horizontal roller L Oa
, l Obe l Oc and vertical roller 12a
.

Although there are two types, 12b and 12c, the present invention can also be applied to the case where one type of each type is used separately, rather than using these two types at the same time.

In addition, the number of rollers used is also 3 as in the above embodiment.
Instead of one by one, the number can be one or more than two.

As a means of supplying lubricating oil, use the method shown in Figure 5 to supply lubricating oil.
l + Not limited to those in the form of droplets, suitable for 11
It may also be something that drains the i star's lubricant i1+ for a short period of time. Alternatively, it may be of a type that sprays a lubricant well. Furthermore, the cloth-like member is provided with lubrication 71b,
It is also possible to insert it on the raceway surface.

In the embodiment shown in FIG. 1, one oil supply means 17 is provided on each horizontal raceway surface 13a and l3b, but the oil supply-F stage 17 is also provided at position (■) and Q in the figure. In addition, two feed/111 means may be provided for each raceway surface.

[Effects of the Invention] According to the invention of Claims (and 2), when the traveling body ([) reciprocates by a predetermined distance, the rollers (10a-10c,
Since the lubrication MI+ is internally supplied to the raceway surface 1 [Y] with which the rollers 12a-12c) are in contact, it is possible to prevent rattling in the opening between the roller and the raceway surface over a long period of time. .

According to the invention of claim 3, when the traveling body starts reciprocating movement, the feeding is always performed prior to the reciprocating movement. 111 is carried out, it is possible to avoid a situation where erroneous refueling is not performed for a long period of time.

According to the fourth aspect of the invention, since the lubricating oil is prevented from flowing out to areas other than the raceway surface, the area around the device can be kept clean at all times.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of the movement device for a traveling body according to the present invention, FIG. 2 is a top view showing the main parts of FIG. 1, and FIG. 4 is a perspective view showing another embodiment of the invention, and FIG. 5 is a sectional view taken along the line, FIG.
It is a sectional view showing one example of a means.

Claims (4)

[Claims] (1) A drive device for reciprocating a running body along a track surface, which comprises: a roller provided on the running body and in contact with the track surface; a lubricating means for supplying lubricating oil to the track surface; A running object characterized by having a running number measuring means for measuring the number of times the body has moved back and forth, and a control means for operating the refueling means to refuel based on the number of times measured by the running number measuring means. Drive device. (2) In place of the above-mentioned running number measuring means, a running time measuring means for measuring the time during which the traveling object has traveled back and forth; and in place of the above-mentioned control means, based on the running time measured by the running time measuring means. 2. The driving device for a traveling body according to claim 1, further comprising a control means for operating said refueling means to refuel. (3) The drive device for a traveling body according to claim 1 or 2, wherein the first refueling by the refueling means is performed when the traveling body starts reciprocating movement. (4) The driving means for a traveling body according to claim 1 or 2, characterized in that a recess for collecting lubricating oil is provided along the raceway surface.